JP5854160B2 - Refillable packaging bag and method for manufacturing the same - Google Patents

Description

  The present disclosure relates to a refill packaging bag.

  A product having fluidity such as liquid is generally sold in a container. Examples of such products include daily necessities (liquid detergents, softeners, medicines, cosmetics, personal care products (hygiene products), etc.) and foods (edible oil, instant coffee, etc.). Examples of the container include a plastic bottle and a glass bottle. Since the said container has moderate robustness, if the contents of a container run out, it can replenish a container with a new content and can be used repeatedly. Thus, refill packaging bags for refilling containers with new contents are on sale (see Patent Documents 1 and 2). The refill packaging bag has, for example, an advantage that it is cheaper than the case of purchasing a new product for each container, and an advantage that it can be easily disposed of because it is not bulky after refilling.

  The refill packaging bag is configured such that a peripheral edge is heat-sealed in a state where a pair of rectangular sheets are overlapped with each other, and the contents are filled therein. At one corner of the refill packaging bag, there is provided a tapered spout portion that becomes thinner toward the tip. According to the spout portion having such a shape, the contents can be refilled while the spout portion is inserted into the mouth portion of the container, so the convenience of the refill operation is enhanced.

Japanese Patent Laid-Open No. 7-002260 (Japanese Patent No. 3154894) JP 2007-161289 A (Patent No. 4875611)

  By the way, when the contents of the refill packaging bag are refilled into a container, the tip of the spout is cut off to open the bag. Thereby, a spout is formed in the edge which was cut out of the spout part. Since the spout portion has a tapered shape corresponding to the mouth portion of the container, the size of the spout is usually small. Further, since the sheets constituting the refill packaging bag are thin and flexible, the sheets stick to each other in the vicinity of the spout portion, and it may be difficult to maintain the open spout. Therefore, it can be hindered to smoothly pour the contents from the spout. This tendency is particularly noticeable when the content has a high viscosity.

  Therefore, in Patent Documents 1 and 2, in order to smoothly pour out the contents from the spout, embossing is performed in the vicinity of the spout portion of the sheet to form an embossed line, and the shape of the embossed line is devised. Is disclosed. However, there is still a case where the content is not allowed to be extracted from the outlet, and further improvement has been desired.

  The present disclosure describes a packaging bag for refilling that can more smoothly dispense contents from an outlet.

  A refill packaging bag according to one aspect of the present disclosure includes a pair of sheets and a seal portion in which peripheral edges of the pair of sheets are partially sealed in a state where the pair of sheets are overlapped, Each of the sheets includes a pair of first and second side edges extending along one direction, an upper edge extending between an upper end of the first side edge and an upper end of the second side edge, and a first edge A tapered spout portion provided at a corner where the side edge and the upper edge intersect with each other, and tapered toward the tip, and first and first embossed so as to project outward and to form a linear shape. A wide seal portion formed so as to protrude toward the second side edge at least near the spout portion of the first side edge, and a wide seal portion. Tip that is continuously extended from the tip of the spout And the first embossed wire extends linearly from the vicinity of the tip of the spout portion toward the lower end of the second side edge, and the second embossed wire is more than the first embossed wire. Is also located on the upper edge side and extends in a curved shape so as to protrude toward the first embossed line, and one end of the second embossed line is directed toward the tip side of the spout part near the tip part of the spout part. The other end of the second embossed wire is directed toward the upper edge.

  (1) In the refill packaging bag according to one aspect of the present disclosure, the wide seal portion is formed so as to protrude toward the second side edge at least near the spout portion of the first side edge. Has been. Therefore, when the contents filled in the refill packaging bag according to one aspect of the present disclosure are refilled into a container, the user picks the lower end portion of the second side edge with a finger and the spout portion faces downward. When the refill packaging bag is suspended, the weight of the contents acts on the spout portion. As a result, the wide seal portion is bent at the inner edge, and the wide seal portion is drawn toward the second side edge. Therefore, the spout part expands in a funnel shape, and the contents are naturally guided to the spout part when the contents are refilled.

  (2) In the refill packaging bag according to one aspect of the present disclosure, the first and second embossed wires embossed so that each of the pair of sheets protrudes outward and has a linear shape. And one end of each of the first and second embossed wires is located near the tip of the spout portion. Therefore, when the contents gather at the spout portion during refilling of the contents, the spout portion swells along the shape of each embossed line. Therefore, the spout part is more likely to expand in a funnel shape.

  (3) In the refill packaging bag according to one aspect of the present disclosure, the first embossed wire extends linearly from the vicinity of the tip of the spout portion toward the lower end of the second side edge. Therefore, when the user picks the lower end portion of the second side edge with a finger and suspends the refill packaging bag so that the spout portion faces downward, the line of force acting on the refill packaging bag is applied. A first embossed line extends along. Therefore, the contents can easily flow along the first emboss line.

  (4) In the refill packaging bag according to one aspect of the present disclosure, the second embossed line is positioned on the upper edge side of the first embossed line and protrudes toward the first embossed line. It extends in the shape of a curved curve, and the other end of the second emboss line is directed toward the upper edge. Therefore, the gap between the first embossed wire and the second embossed wire is increased on the side away from the spout portion. Therefore, at the time of refilling, the lower end side of the second side edge of the spout part is more likely to expand greatly.

  (5) In the refill packaging bag according to one aspect of the present disclosure, the second embossed line is positioned on the upper edge side of the first embossed line and protrudes toward the first embossed line. It extends in the shape of a curved curve, and the other end of the second emboss line is directed toward the upper edge. Therefore, when the user picks the lower end of the second side edge with his finger and suspends the refill packaging bag so that the spout portion faces downward, the contents accumulated on the upper edge side are It is guided toward the spout part by the embossed wire. Therefore, in general, the contents accumulated on the upper edge side tend to stay at the time of refilling, but the contents easily flow from the upper edge side to the spout portion along the second emboss line.

  According to the packaging bag for refilling according to one aspect of the present disclosure, the contents can be smoothly poured out from the spout through the actions (1) to (5).

  The first embossed line may extend along an imaginary straight line connecting the tip of the spout portion and the lower end of the second side edge. In this case, when the user picks the lower end portion of the second side edge with a finger and suspends the refill packaging bag so that the spout portion faces downward, the line of force acting on the refill packaging bag is applied. The first embossed line becomes easier to follow. Therefore, the contents can easily flow along the first emboss line.

  In a direction orthogonal to the first emboss line, the length between the wide seal portion and the first emboss line, the length between the first emboss line and the second emboss line, and the second emboss Any length between the wire and the tip seal portion may be set so as to increase from the tip side of the spout portion toward the lower end of the second embossed wire. In this case, the gap between two adjacent members among the wide seal portion, the first embossed wire, the second embossed wire, and the tip seal portion increases as the distance from the spout portion increases. Therefore, at the time of refilling, the lower end side of the second side edge of the spout part is more likely to expand further.

  The lower end of the first embossed line is located between the apex bulging inward among the wide seal portions and the upper end of the first embossed line in the extending direction of the first and second side edges. Also good. In this case, when the user picks the lower end of the second side edge with a finger and suspends the refill packaging bag so that the spout portion faces downward, the spout portion expands outward. The lower end of the embossed wire of 1 makes it difficult to suppress the swelling of the spout portion.

  The tip seal portion may be provided with an opening means for opening the tip portion of the spout portion. In this case, it becomes easy to open the tip of the spout portion by the opening means.

  An opening guide line extending across the spout part, the first emboss line, and the second emboss line may be formed in the spout part and the tip seal part. In this case, the tip of the spout can be opened along the opening guide line. Therefore, the shape of the spout formed in the spout after the opening is difficult to collapse. Therefore, the contents can easily flow out from the spout smoothly.

  A hook portion that is cut out so as to be recessed toward the spout portion may be formed between the wide seal portion and the tip seal portion. In this case, it becomes easy to guide the spout portion to the opening of the container by hooking the hook portion to the opening of the container at the time of refilling.

  The seal portion may be formed by sealing the peripheral edges of the pair of sheets as a whole with the contents filled therein.

  The seal portion includes an upper seal portion formed so as to continuously extend from the tip seal portion toward the upper edge side, and a top seal portion formed on the upper edge so as to continuously extend from the tip of the upper seal portion. Further, the linear distance between the inner edge of the top seal portion and a virtual parallel line passing through the lower end portion of the inner edge of the upper seal portion and extending substantially parallel to the inner edge of the top seal portion may be 8 mm or less. In this case, even if the user picks the lower end of the second side edge with his finger and suspends the refill packaging bag so that the spout portion faces downward, the contents are less likely to stay near the top seal portion. . Therefore, all or most of the contents can be easily refilled into a container.

  A refill packaging bag according to another aspect of the present disclosure includes a top seal portion, a left and right side seal portion, and a bottom seal portion, and forms a storage portion therein, on one side of the top seal portion and the left and right side seal portions. In a refill packaging bag having a spout portion formed with a tip seal portion, an upper seal portion, and a lower seal portion so as to face obliquely upward at an upper corner portion with the seal portion, the left and right side seals Among the parts, the one side seal part that forms the spout part and is connected to the lower seal part, the inner side is connected to the lower seal part to form a convex wide seal part, and the spout part is A first emboss line extending linearly from the vicinity of the tip of the spout portion toward the lower end of the other side seal portion of the left and right side seal portions is formed, and is positioned closer to the top seal portion than the first emboss line And extending in a curved shape so as to protrude toward the first embossed line. To form embossed lines, one end of the second embossed line is toward the distal end side of the spout portion adjacent to a distal end thereof spout, the other end of the second embossing line is towards the top seal portion.

  According to the refill packaging bag according to another aspect of the present disclosure, the content can be poured out from the spout more smoothly as with the above-described refill bag.

  An opening guide wire may be formed at the tip of the spout portion. In this case, the tip of the spout can be opened along the opening guide line. Therefore, the shape of the spout formed in the spout after the opening is difficult to collapse. Therefore, the contents can easily flow out from the spout smoothly.

  The first embossed line may extend along an imaginary straight line connecting the tip of the spout port and the lower end of the other side seal. In this case, when the user picks the diagonal of the refill packaging bag with his finger and suspends the refill packaging bag so that the spout portion faces downward, the line of force acting on the refill packaging bag The first embossed line becomes easier to follow. Therefore, the contents can easily flow along the first emboss line.

  The 1st emboss line may be formed to the position of the maximum width of a wide seal part. In this case, when the user picks the diagonal of the refill packaging bag with his / her finger and hangs the refill packaging bag so that the spout portion faces downward, the spout portion expands outward. The lower end of one embossed line makes it difficult to suppress the swelling of the spout portion.

  When a parallel line is drawn parallel to the inner edge starting from the inner edge of the top seal part and the lowest part of the recessed part of the upper seal part, the width between the inner edge and the parallel line is 8 mm or less. May be. In this case, even if the user picks the diagonal of the refill packaging bag with his finger and suspends the refill packaging bag so that the spout portion faces downward, the contents do not easily stay near the top seal portion. . Therefore, all or most of the contents can be refilled into a container.

  According to the packaging bag for refilling according to the present disclosure, it is possible to more smoothly pour out the content from the spout.

FIG. 1 is a diagram showing a refill packaging bag (before filling contents) according to the present embodiment. FIG. 2 is a diagram illustrating an example of a cross section taken along line II-II in FIG. 3 is a cross-sectional view taken along line IV-IV in FIG. FIG. 4 is a diagram for explaining a manufacturing process of the refill packaging bag (before filling the contents) according to the present embodiment. FIG. 5 is a view showing the refill packaging bag (after filling the contents) according to the present embodiment. FIG. 6 is a view showing a state in which the tip of the spout portion of the refill packaging bag (after filling the contents) according to the present embodiment is cut off. FIG. 7 is a view showing the spout as seen from the direction of arrow VIII in FIG. FIG. 8 is a diagram showing a state in which the contents of the refill packaging bag (after filling the contents) are poured into the container. FIG. 9 is a view showing another example of the refill packaging bag (before filling the contents) according to the present embodiment. FIG. 10 is a diagram showing another example of the refill packaging bag (before filling the contents) according to the present embodiment. FIG. 11 is a view showing another example of the refill packaging bag (before filling the contents) according to the present embodiment. FIG. 12 is a view showing another example of the refill packaging bag (before filling the contents) according to the present embodiment. FIG. 13 is a view showing another example of the refill packaging bag (before filling the contents) according to the present embodiment. FIG. 14 is a view showing another example of the refill packaging bag (before filling the contents) according to the present embodiment. FIG. 15 is a view showing a refill packaging bag according to Comparative Example 1 (before filling the contents). FIG. 16 is a view showing a refill packaging bag according to Comparative Example 2 (before filling the contents). FIG. 17 is an explanatory diagram showing an example of a refill packaging bag according to the second embodiment. FIG. 18 is an explanatory diagram illustrating another example of the refill packaging bag according to the second embodiment. FIG. 19 is an explanatory diagram illustrating an example of a cross-section of the spout portion according to the second embodiment. FIG. 20 is an explanatory diagram illustrating an example of a cross-section of the spout portion at the time of refilling in the second embodiment. FIG. 21 is an explanatory diagram illustrating an example of a state in which the refill packaging bag of the second embodiment is refilled with a plastic bottle. Drawing 22 is an explanatory view showing an example of the section of the lamination sheet which forms the packaging bag for refilling of a 2nd embodiment. FIG. 23 is an explanatory diagram illustrating an example of a cross section of a laminated sheet of a portion where an opening guide line is formed in the second embodiment.

  Since the embodiment according to the present disclosure described below is an example for explaining the present invention, the present invention should not be limited to the following contents. In the following description, the same reference numerals are used for the same elements or elements having the same function, and redundant description is omitted.

[Configuration of refill packaging bag (before filling contents)]
First, with reference to FIGS. 1-3, the structure of the packaging bag 1 for refilling before the contents are filled is demonstrated. Hereinafter, the refill packaging bag 1 before being filled with the contents may be referred to as a refill bag 1A. The refill packaging bag 1 after the contents are filled may be referred to as a bag product 1B.

  The refill bag 1 </ b> A includes a front laminated sheet 2, a back laminated sheet 3, a bottom tape 4, and a seal portion S. Each of the sheets 2 and 3 and the bottom tape 4 has flexibility and has a substantially rectangular shape. The thickness of each sheet 2, 3 and the bottom tape 4 may be, for example, about 50 μm to 200 μm.

  Each of the sheets 2 and 3 and the bottom tape 4 may include a base material layer 51, a printing layer 52, an adhesive layer 53, and a sealant layer 54 as shown in FIG. Good. The base material layer 51, the printing layer 52, the adhesive layer 53, and the sealant layer 54 are laminated in this order from the outside to the inside of the refill bag 1A. Each of the sheets 2 and 3 and the bottom tape 4 is configured by adhering a base material layer 51 having a printed layer 52 formed on a surface thereof and a sealant layer 54 with an adhesive layer 53.

  As the base material layer 51, a plastic film, paper, a nonwoven fabric, etc. can be used, for example. Examples of the plastic film include a polyester film, a polypropylene film, a polystyrene film, a nylon film, a polycarbonate film, a polyacrylonitrile film, and a polyimide film. As long as the plastic film exhibits predetermined mechanical strength and dimensional stability, the material, material, manufacturing method and the like are not particularly limited. For example, the plastic film may be a biaxially stretched film. A vapor deposition layer of a metal such as aluminum may be formed on the surface of the plastic film. Examples of the paper include high-quality paper, piece art paper, coated paper, cast coated paper, and imitation paper. The paper used for the base material layer 51 may be determined as appropriate based on the mechanical strength of the paper and the suitability for bag making.

  The printed layer 52 is a layer printed using ink in order to display the product name or the like of the bag-packed product 1B. Ink is added to binder resins (for example, urethane, acrylic, nitrocellulose, rubber, etc.), for example, various pigments, extenders, and additives (for example, plasticizers, desiccants, stabilizers, etc.) Being done. Examples of the printing method include known printing methods such as offset printing, gravure printing, flexographic printing, silk screen printing, and inkjet printing. Before forming the printing layer 52 on the base material layer 51, the surface of the base material layer 51 may be pretreated (for example, corona treatment, ozone treatment, etc.). Thereby, the adhesiveness of the printing layer 52 with respect to the surface of the base material layer 51 improves. Note that the printing layer 52 may not be formed on the surface of the base material layer 51.

  The adhesive layer 53 is a layer for adhering the base material layer 51 and the sealant layer 54 via the printing layer 52. The adhesive layer 53 may be formed by, for example, applying an adhesive layer-wise on the base material layer 51 (printing layer 52). As the adhesive, for example, an adhesive for dry lamination may be used. Examples of adhesive types include two-component curable urethane adhesives, polyester urethane adhesives, polyether urethane adhesives, acrylic adhesives, polyester adhesives, polyamide adhesives, and epoxy adhesives. Etc. When an adhesive for dry lamination is used as the adhesive, the two layers may be bonded together by a dry lamination method.

  The sealant layer 54 is configured to be melted by heat and fused to another sheet. That is, the sealant layer 54 is configured to be heat-sealable. The sealant layer 54 may be made of, for example, a polyolefin resin. Specific examples of polyolefin resins include low density polyethylene, linear low density polyethylene, medium density polyethylene, high density polyethylene, ethylene-vinyl acetate copolymer (EVA), and ethylene-methacrylic acid copolymer (EMAA). , Ethylene-ethyl acrylate copolymer (EAA), ionomer, polypropylene and the like. When the above resin is used as the material of the sealant layer 54, the sealant layer 54 is configured by forming the above resin into a film shape by an extruder. The sealant layer 54 may be a single layer or a multilayer.

  As another example, as shown in FIG. 2B, each of the sheets 2, 3 and the bottom tape 4 has a base layer 51, a printed layer 52, an adhesive layer 53, a sealant layer 54, The intermediate layer 55 may be included. The base material layer 51, the printing layer 52, the adhesive layer 53, the intermediate layer 55, the adhesive layer 53, and the sealant layer 54 are laminated in this order from the outside to the inside of the refill bag 1A. Each of the sheets 2 and 3 and the bottom tape 4 has a base layer 51 having a printed layer 52 formed on the surface and an intermediate layer 55 bonded together by a single adhesive layer 53, and the intermediate layer 55 and the sealant layer 54. Is formed by being adhered by another adhesive layer 53.

  The intermediate layer 55 is disposed, for example, for the purpose of improving various physical properties of the sheets 2 and 3 and the bottom tape 4. Examples of various physical properties include rigidity, drop strength, puncture strength, gas barrier properties (for example, water vapor, oxygen gas, etc.), and cosmetics. When improving rigidity, drop strength, puncture strength, etc., the intermediate layer 55 may be made of, for example, a nylon film or a polyester film. When improving the barrier property of water vapor | steam, you may comprise the intermediate | middle layer 55 with an aluminum foil, an aluminum vapor deposition polyester film, an inorganic oxide vapor deposition polyester film etc., for example. Inorganic oxides are oxides of metals such as silicon oxide, aluminum oxide, magnesium oxide, calcium oxide, potassium oxide, tin oxide, sodium oxide, boron oxide, titanium oxide, lead oxide, zirconium oxide, yttrium oxide, and the like. May be. Among these, in consideration of productivity and price, silicon oxide, aluminum oxide, magnesium oxide, or the like may be selected as the inorganic oxide. When improving the cosmetics, the intermediate layer 55 may be constituted by, for example, a polyester film having an aluminum vapor deposition layer.

  The front laminated sheet 2 and the back laminated sheet 3 are in a substantially mirror image symmetrical relationship. Therefore, below, the shape of the front laminated sheet 2 will be mainly described, and the description of the shape of the back laminated sheet 3 will be omitted.

  Returning to FIG. 1, the front laminated sheet 2 has an upper edge 2T, a lower edge 2B, a right edge 2R, and a left edge 2L. Note that the words “upper”, “lower”, “left”, and “right” correspond to the upper, lower, left, and right directions in FIG.

  Both the upper edge 2T and the lower edge 2B extend along the left-right direction. The upper edge 2T and the lower edge 2B are opposed to each other in the vertical direction. Both the right edge 2R and the left edge 2L extend along the vertical direction. The right edge 2R and the left edge 2L face each other in the left-right direction. The region where the upper edge 2T and the right edge 2R intersect forms the upper right corner 2ur of the front laminated sheet 2. The region where the upper edge 2T and the left edge 2L intersect forms the upper left corner 2ul of the front laminated sheet 2. The region where the lower edge 2B and the right edge 2R intersect forms the lower right corner 2lr of the front laminated sheet 2. The region where the lower edge 2B and the left edge 2L intersect forms the lower left corner 2ll of the front laminated sheet 2. The upper right corner 2ur and the lower left corner 2ll are diagonal to each other. The upper left corner 2ul and the lower right corner 2lr are in a diagonal relationship with each other.

  A recess 2Ta that is recessed toward the lower edge 2B is formed in the vicinity of the upper left corner 2ul of the upper edge 2T. The recess 2Ta includes a pair of side edges 2Ta1, 2Ta2 and a bottom edge 2Ta3. The side 2Ta1 protrudes toward the side 2Ta2 on the opening side of the recess 2Ta. The side 2Ta2 protrudes toward the side 2Ta1 on the bottom 2Ta3 side. Therefore, one corner 2Ta4 of the recess 2Ta located at the intersection of the side 2Ta1 and the bottom 2Ta3 protrudes outward (toward the left edge 2L) in the left-right direction. The corner 2Ta4 protrudes toward the left edge 2L, and functions as an opening means for opening a spout 8 to be described later. The other corner of the recess 2Ta, which is the intersection of the side 2Ta2 and the base 2Ta3, protrudes outward (toward the right edge 2R) in the left-right direction.

  A recess 2La that is recessed toward the right edge 2R is formed in the vicinity of the upper left corner 2ul of the left edge 2L. The recess 2La has a curved arc shape. The recess 2La includes first and second sides 2La1, 2La2. The first side 2La1 extends from the vicinity of the tip of the upper left corner 2ul to the apex of the recess 2La (the point at which the curvature of the recess 2La becomes approximately 0). The second side 2La2 extends from the apex of the recess 2La toward the lower left corner 2ll. The length of the second side 2La2 is set to be smaller than the length of the first side 2La1. The curvature of the second side 2La2 is set to be larger than the curvature of the first side 2La1.

  The front laminated sheet 2 and the back laminated sheet 3 are overlapped so that the sealant layers 54 face each other. The bottom tape 4 is inserted between the sheets 2 and 3 below the sheets 2 and 3 in a state of being folded in two along a virtual straight line extending in the left-right direction. In a state where the bottom tape 4 is folded in half, the sealant layer 54 of the bottom tape 4 faces outward. Therefore, the sealant layer 54 of the bottom tape 4 is opposed to the sealant layer 54 of the front laminated sheet 2 and the sealant layer 54 of the back laminated sheet 3.

  The seal portion S is a heat-sealing layer formed by heat-sealing the sealant layers 54 facing each other among the sheets 2 and 3 and the bottom tape 4. In the refill bag 1 </ b> A, the seal portion S includes a bottom seal portion 5, a left side seal portion 6, a right side seal portion 6 ′, a spout seal portion 15, and a wide seal portion 12.

  The bottom seal portion 5 is configured at the lower portion of the refill bag 1A. The bottom seal portion 5 includes a first portion configured between the front laminated sheet 2 and the bottom tape 4 and a second portion configured between the back laminated sheet 3 and the bottom tape 4.

  The first portion of the bottom seal portion 5 includes a sealant layer 54 of the surface laminated sheet 2 and a sealant layer 54 on the side facing the surface laminated sheet 2 of the folded bottom tape 4 in a predetermined region S1. It is comprised by heat-sealing. The region S1 is defined by the lower edge 2B, the inner edge 6a of the left side seal portion 6, the inner edge 6'a of the right side seal portion 6 ', and the inner edge 5a of the bottom seal portion 5. The inner edge 5a has an arc shape in which the center in the left-right direction swells toward the lower edge 2B. Therefore, the width of the region S1 decreases in the vertical direction as it approaches the center in the left-right direction from the left edge 2L side, and increases in the vertical direction as it approaches the right edge 2R side from the center in the left-right direction. The second portion of the bottom seal portion 5 is similar to the region S1 in that the sealant layer 54 of the back laminated sheet 3 and the sealant layer 54 on the side facing the back laminated sheet 3 of the folded bottom tape 4 are the same. In this predetermined region, heat sealing is performed.

  The left side seal portion 6 has a predetermined width, and extends from the lower left corner 2ll to the spout seal 15 along the left edge 2L. The left side seal portion 6 includes a first portion configured between the front laminate sheet 2 and the bottom tape 4, a second portion configured between the back laminate sheet 3 and the bottom tape 4, It has the 3rd part comprised between the surface lamination sheet 2 and the back lamination sheet 3. FIG.

  The first portion of the left side seal portion 6 includes a sealant layer 54 of the front laminated sheet 2 and a sealant layer 54 on the side facing the front laminated sheet 2 of the bottom tape 4 folded in half. It is configured by heat sealing in the vicinity of 2L. The first portion of the left side seal portion 6 is continuous with the first portion of the bottom seal portion 5. The second part of the left side seal portion 6 includes a sealant layer 54 of the back laminate sheet 3 and a sealant layer 54 on the side facing the back laminate sheet 3 of the bottom tape 4 folded in half. It is configured by heat sealing in the vicinity of 2L. The second portion of the left side seal portion 6 is continuous with the second portion of the bottom seal portion 5. The third portion of the left side seal portion 6 is configured by heat sealing the sealant layer 54 of the front laminate sheet 2 and the sealant layer 54 of the back laminate sheet 3 in the vicinity of the left edge 2L.

  The right side seal 6 'has a predetermined width and extends from the lower right corner 2lr to the upper right corner 2ur along the right edge 2R. The right side seal portion 6 ′ includes a first portion configured between the front laminate sheet 2 and the bottom tape 4, and a second portion configured between the back laminate sheet 3 and the bottom tape 4. And a third portion formed between the front laminated sheet 2 and the back laminated sheet 3.

  The first part of the right side seal portion 6 ′ includes a sealant layer 54 of the front laminated sheet 2 and a sealant layer 54 on the side facing the front laminated sheet 2 of the bottom tape 4 folded in half. It is configured by heat sealing in the vicinity of the edge 2R. The first portion of the right side seal portion 6 ′ is continuous with the first portion of the bottom seal portion 5. The second part of the right side seal portion 6 ′ includes a sealant layer 54 of the back laminated sheet 3 and a sealant layer 54 on the side facing the back laminated sheet 3 of the bottom tape 4 folded in half. It is configured by heat sealing in the vicinity of the edge 2R. The second portion of the right side seal portion 6 ′ is continuous with the second portion of the bottom seal portion 5. The third portion of the right side seal portion 6 'is configured by heat sealing the sealant layer 54 of the front laminate sheet 2 and the sealant layer 54 of the back laminate sheet 3 in the vicinity of the right edge 2R. .

  The spout seal portion 15 includes a tip seal portion 9, an upper seal portion 10, and a lower seal portion 11. The tip seal portion 9 extends from the vicinity of the apex of the recess 2La to the vicinity of the recess 2Ta along the outer edge of the upper left corner 2ul. Therefore, the tip seal portion 9 has a substantially C shape. The tip seal portion 9 is provided with a corner 2Ta4 of a recess 2Ta which is a notch as an opening means. The upper seal portion 10 extends from the vicinity of the recess 2Ta to the upper edge 2T continuously from the tip seal portion 9 along the outer edge of the recess 2Ta. Therefore, the upper seal portion 10 has a substantially L shape. The lower seal portion 11 extends from the vicinity of the apex of the recess 2La to the wide seal portion 12 continuously from the tip seal portion 9 along the outer edge of the recess 2La.

  The portion surrounded by the spout seal portion 15 in each of the sheets 2 and 3 has a tapered shape that becomes thinner toward the upper left corner 2ul (a triangular shape that becomes wider from the upper left corner 2ul toward the lower right corner 2lr). It serves as a spout 8 for pouring out the contents accommodated in the bag-packed product 1B. In other words, the spout seal portion 15 (the tip seal portion 9, the upper seal portion 10, and the lower seal portion 11) is formed to extend around the spout portion 8. In particular, the tip seal portion 9 is formed to extend around the tip portion of the spout portion 8.

  The wide seal portion 12 is continuous with the lower seal portion 11 and the left side seal portion 6. Therefore, the wide seal portion 12 is positioned closer to the spout portion 8 in the vertical direction (closer to the upper left corner 2ul than the vicinity of the center of the left edge 2L). The wide seal portion 12 swells toward the inner side (right edge 2R side) than the left side seal portion 6. The apex of the wide seal portion 12, that is, the position 13 of the maximum width that swells inwardly of the wide seal portion 12 is located below the recess 2La. The curvature radius of the inner edge of the wide seal portion 12 at the apex of the wide seal portion 12 (the maximum width position 13 of the wide seal portion 12) may be, for example, about 5 mm to 200 mm, or about 10 mm to 100 mm. Or about 40 mm to 80 mm. The width D between the left side seal portion 6 and the apex of the wide seal portion 12 (maximum width position 13 of the wide seal portion 12) may be, for example, about 5 mm to 35 mm, or about 10 mm to 30 mm. Or about 15 mm to 25 mm, or about 15 mm to 20 mm. When the width D is 5 mm or more, when the user hangs the bagging product 1B so that the spouting portion 8 faces downward when the contents are refilled from the bagging product 1B, the spouting portion 8 is easily bent. The contents tend to be easily guided to the spout 8. When the width D is 35 mm or less, an opening 33 described later tends to be greatly expanded.

  In the refill bag 1A, the space between the right side seal portion 6 'and the upper seal portion 10 in the upper edge 2T is not sealed. Therefore, an opening OP that can be opened and closed is formed between the right side seal portion 6 ′ and the upper seal portion 10 in the upper edge 2T. Therefore, in the refill bag 1A, the entire periphery of each sheet 2 and 3 is not sealed, and the seal portion S is configured by partially sealing the periphery of each sheet 2 and 3.

  Embossed wires 30 and 31 (first and second embossed wires) are formed in the vicinity of the spout 8 of each sheet 2 and 3. As shown in FIG. 3, the embossed wires 30 and 31 both protrude outward. Both cross sections of the embossed wires 30 and 31 are C-shaped. The embossed wire 30 of the front laminated sheet 2 and the embossed wire 30 of the back laminated sheet 3 are opposed to each other. Therefore, a space V1 is formed between the embossed wires 30. The embossed wire 31 of the front laminated sheet 2 and the embossed wire 31 of the back laminated sheet 3 are opposed to each other. Therefore, a space V <b> 2 is formed between the embossed wires 31. On the other hand, in the state of the refill bag 1A and the state in which the contents of the bag-filled product 1B are not moved to the spout 8, the sheets 2 and 3 are formed in the intermediate portion 32 between the embossed wire 30 and the embossed wire 31. Are close.

  The height H of the embossed wires 30 and 31 may be, for example, about 1 mm to 4 mm, about 2 mm to 3 mm, or about 2 mm. When the height H is 1 mm or more, an opening 33 described later tends to be greatly expanded. When the height H is 4 mm or less, even when a large number of refill bags 1A are stacked when the refill bags 1A are shipped, the embossed wires 30 and 31 tend not to be crushed and the shape tends to be maintained. It is in. The width W of the embossed wires 30 and 31 may be, for example, about 1 mm to 10 mm, about 2 mm to 8 mm, about 3 mm to 7 mm, or about 4 mm. Also good. When the width W is 1 mm or more, the embossed wires 30 and 31 tend to be easily molded. When the width W is 10 mm or less, even when a large number of refill bags 1A are stacked when the refill bags 1A are shipped, the embossed wires 30, 31 tend not to be crushed and tend to maintain their shapes. is there. From the viewpoint of imparting relatively high rigidity to the embossed wires 30 and 31, polyethylene terephthalate (PET) or polypropylene (PP) may be used as the base material layer 51, and polyethylene (PE) or polypropylene (PP) as the sealant layer 54. May be used, and aluminum may be used as the intermediate layer 55.

  Returning to FIG. 1, the embossed wire 30 has a linear shape. The tip 30 a of the embossed wire 30 is located in the vicinity of the tip of the spout 8 and is directed toward the tip of the spout 8. The lower end 30b of the embossed wire 30 is directed toward the lower right corner 21lr side (the lower end side of the right edge 2R). That is, the embossed wire 30 extends linearly from the vicinity of the tip of the spout 8 toward the lower right corner 2lr. In other words, the embossed line 30 extends along a virtual straight line VL that connects the tip of the spout 8 and the lower right corner 2lr (lower end of the right edge 2R). The lower end 30b of the embossed wire 30 is located between the tip 30a of the embossed wire 30 and the apex of the wide seal portion 12 (maximum width position 13 of the wide seal portion 12) in the vertical direction.

  The embossed wire 31 is located above the embossed wire 30 (upper edge 2T side). The emboss line 31 extends in a curved shape so as to protrude toward the emboss line 30. The tip 31 a of the embossed wire 31 is located in the vicinity of the tip of the spout 8 and is directed toward the tip of the spout 8. The lower end 31b of the emboss line 31 is directed toward the upper edge 2T. The radius of curvature at the top of the embossed line 31 (the point where the straight line distance from the virtual straight line connecting the tip 31a and the lower end 31b is the largest) may be, for example, about 1 mm to 200 mm, or about 10 mm to 100 mm. Or about 30 mm to 80 mm.

  The length between the embossed wire 30 and the spout seal portion 15 and the wide seal portion 12 in the direction orthogonal to the embossed wire 30 is from the tip side of the spout portion 8 to the lower right corner 2lr side (the lower end of the right edge 2R). It is set to increase as it goes to the side. The angle α formed by the embossed wire 30 and the portion on the left edge 2L side of the wide seal portion 12 and the spout seal portion 15 may be, for example, about 5 ° to 50 °, or about 10 ° to 40 °. It may be about 20 ° to 30 °. In the direction orthogonal to the embossed wire 30, the length between the embossed wire 30 and the embossed wire 31 increases from the distal end side of the spout port 8 toward the lower right corner 2 lr side (lower end side of the right edge 2 R). Is set to The angle β formed between the embossed wire 30 and the embossed wire 31 on the tip 31a side may be, for example, about 5 ° to 50 °, may be about 10 ° to 40 °, and 20 It may be about 30 °. In the direction orthogonal to the embossed wire 30, the length between the embossed wire 31 and the spout seal portion 15 increases from the front end side of the spout port 8 toward the lower right corner 2 lr side (lower end side of the right edge 2 </ b> R). It is set to be large. The angle γ formed by the emboss wire 31 and the portion on the upper edge 2T side of the spout seal portion 15 may be, for example, about 5 ° to 50 °, or may be about 10 ° to 40 °. However, it may be about 20 ° to 30 °.

  In the vicinity of the spout portion 8 of each sheet 2, 3, an opening guide line 20 is formed so as to cross the spout portion 8, the spout seal portion 15, and the embossed wires 30 and 31. The opening guide line 20 has a linear shape. The opening guide line 20 extends from the vicinity of the boundary between the tip seal portion 9 and the upper seal portion 10 to the vicinity of the boundary between the tip seal portion 9 and the lower seal portion 11. As shown in FIG. 2, the unsealing guide line 20 is a groove (half-cut groove) that reaches the sealant layer 54 from the base material layer 51 on the front side, and does not completely cut the sheets 2 and 3. The number of opening guide lines 20 formed in the vicinity of the spout 8 may be one or plural. When a plurality of opening guide lines 20 are formed in the vicinity of the spout 8, each opening guide line 20 may extend substantially in parallel, or may not extend substantially in parallel. The unsealing guide wire 20 may be formed by, for example, a Thomson blade or may be formed by laser processing. In the case of laser processing, a more uniform half cut groove can be obtained. Examples of the laser include a carbon dioxide laser.

[Method for manufacturing refill packaging bag (after filling contents)]
Then, with reference to FIG.4 and FIG.5, the manufacturing method of the bagging product 1B is demonstrated.

  First, a sheet having a predetermined size is cut to obtain a front laminated sheet 2, a back laminated sheet 3 and a bottom tape 4 formed into a predetermined shape. Next, the embossed wires 30 and 31 are formed on the portions of the sheets 2 and 3 that become the spout portion 8. As a method for forming the embossed wires 30 and 31, for example, as shown in FIG. The press mold R on which the mold is formed may be pressed against the part, and the embossed wires 30 and 31 may be formed on both the sheets 2 and 3 at the same time.

  Next, the sheets 2 and 3 and the bottom tape 4 are overlapped to partially seal the peripheral edges of the sheets 2 and 3 and the bottom tape 4. Specifically, the bottom seal portion 5, the left side seal portion 6, the right side seal portion 6 ′, the spout seal portion 15, and the wide seal portion 12 are formed to obtain the seal portion S. Thereby, the refill bag 1A having the opening OP is formed. The opening guide wire 20 may be processed either before or after the refill bag 1A is formed.

  Next, the contents are filled from the unsealed portion of the refill bag 1A, that is, the opening OP. The content is a fluid having fluidity such as liquid. Examples of the contents include daily necessities (liquid detergents, softeners, medicines, cosmetics, personal care products (hygiene products), etc.) and foods (edible oil, instant coffee, etc.).

  Next, as shown in FIG. 5, the space between the right side seal portion 6 ′ and the upper seal portion 10 in the upper edge 2 </ b> T is sealed to form the top seal portion 7. That is, the top seal portion 7 continuously extends between the tip (upper end) of the upper seal portion 10 and the tip (upper end) of the right side seal portion 6 ′. Thereby, the seal part S by which the whole periphery of 1 A of refill bags was sealed is obtained. As described above, the bag-filled product 1B in which the contents are filled in the refill bag 1A is obtained. At this time, the lower edges 2B of the sheets 2 and 3 spread together with the bottom tape 4 in the thickness direction of the refill bag 1A. Therefore, a substantially circular virtual installation surface is formed by the lower edges 2B of the sheets 2 and 3. Accordingly, since the bag-packed product 1B is self-supporting, the bag-packed product 1B can be displayed and sold in a state where the bag-packed product 1B is upright.

  The linear distance A between the inner edge of the top seal portion 7 and the virtual parallel line B passing through the lower end portion of the inner edge of the upper seal portion 10 and extending substantially parallel to the inner edge, that is, the width A between the inner edge and the virtual parallel line B is 8 mm or less, 6 mm or less, 4 mm or less, or 2 mm or less. At this time, when the user hangs the bagging product 1B so that the spout 8 faces downward when the contents are refilled from the bagging product 1B, the content does not easily stay in the vicinity of the top seal portion 7. . Therefore, all or most of the contents can be easily refilled into a container 61 (see FIG. 8) described later.

[How to refill contents]
Next, a method for refilling the contents from the bag-filled product 1B into the container 61 will be described with reference to FIGS. The container 61 is, for example, a plastic or glass bottle.

  First, as shown in FIG. 6, the user picks the tip seal portion 9 by hand and tears the tip portion of the spout portion 8 along the opening guide line 20 from the corner portion 2Ta4 of the recess 2Ta. Thereby, the bag-packed product 1B is opened at the spout 8. At this time, while the embossed wires 30 and 31 maintain a predetermined shape, the intermediate portion 32 between the embossed wire 30 and the embossed wire 31 has flexibility, so that an inward force is applied to the spout 8 from the side. By acting, the intermediate part 32 bends and greatly expands outward. Accordingly, as shown in FIG. 7, an opening 33 is formed at the tip of the spouted portion 8 that has been torn. The opening 33 has an outer shape inscribed in a hexagon.

  Next, as shown in FIG. 8, the spout 8 is inserted into the mouth 62 of the container 61, and the contents of the bag-filled product 1 </ b> B are poured into the container 61 from the spout 8. At this time, the lower right corner 2lr is held by a user with a finger, and the bagged product 1B is suspended in the air so that the spout 8 is directed downward. When all or most of the contents in the bag-filled product 1B are transferred to the container 61, the refilling process is completed.

[Action and effect]
(1) In the present embodiment as described above, the wide seal portion 12 is formed so as to protrude toward the right edge 2R at least near the spout 8 in the left edge 2L. Therefore, when the contents filled in the bag-packed product 1B according to the present embodiment are refilled into the container 61, the user picks the lower end (lower right corner portion 2lr) of the right edge 2R with a finger and the spout portion 8 faces downward. When the bag-packed product 1B is suspended so that the weight of the contents acts on the spout portion 8, the spout portion 8 swells outward. Thereby, the opening 33 is further enlarged, the wide seal portion 12 is bent at the inner edge, and the wide seal portion 12 is drawn toward the right edge 2R. Thus, the spout 8 expands in a funnel shape along the shape of the embossed lines 30 and 31, and the contents are naturally guided to the spout 8 when the contents are refilled.

  (2) In the present embodiment, each of the sheets 2 and 3 has the embossed lines 30 and 31 that are embossed so as to protrude outward and have a linear shape. Each end 30a, 30b is located near the tip of the spout 8. Therefore, when the contents gather at the spout portion 8 when the contents are refilled, the spout portion 8 swells along the shape of the embossed wires 30 and 31. Therefore, the spout 8 is more easily expanded in a funnel shape.

  (3) In the present embodiment, the embossed wire 30 extends linearly from the vicinity of the tip of the spout portion 8 toward the lower right corner 2lr. Therefore, when the user picks the lower right corner 2lr with a finger and suspends the bagging product 1B so that the spout 8 faces downward, the embossed wire 30 along the line of action of the force acting on the bagging product 1B. Is extended. Therefore, the contents can easily flow along the embossed line 30.

  (4) In the present embodiment, the embossed wire 31 is located on the upper edge 2T side of the embossed wire 30 and extends in a curved shape so as to protrude toward the embossed wire 30. The end 31b faces the upper edge 2T side. Therefore, the gap between the embossed wire 30 and the embossed wire 31 increases on the side away from the spout 8. Therefore, at the time of refilling, the lower right corner 2lr side of the spout 8 is more likely to expand.

  (5) In this embodiment, the embossed wire 31 is positioned on the upper edge 2T side of the embossed wire 30 and extends in a curved shape so as to protrude toward the embossed wire 30. The end 31b faces the upper edge 2T side. Therefore, when the user picks up the lower right corner 2lr with a finger and suspends the bag-packed product 1B so that the spout 8 faces downward, the contents accumulated on the upper edge 2T side are poured by the embossed wire 31. It is guided toward the outlet 8 side. Therefore, in general, the contents accumulated on the upper edge 2T side tend to stay at the time of refilling, but the contents easily flow from the upper edge 2T side to the spout portion 8 along the embossed line 31.

  According to the present embodiment, the operations (1) to (5) enable the contents to be poured out from the opening 33 (spout port) more smoothly.

  In the present embodiment, the emboss line 30 extends along the virtual straight line VL. Therefore, when the user picks up the lower right corner 2lr with a finger and suspends the bagging product 1B so that the spout 8 faces downward, the embossed wire 30 is added to the action line of the force acting on the bagging product 1B. It becomes easier to follow. Therefore, the contents can easily flow along the embossed line 30.

  In the present embodiment, in the direction orthogonal to the embossed wire 30, the length between the embossed wire 30 and the spout seal portion 15 and the wide seal portion 12, the length between the embossed wire 30 and the embossed wire 31, and The length between the embossed wire 31 and the spout seal portion 15 is set so as to increase from the tip end side of the spout portion 8 toward the lower right corner 2lr. Therefore, the gap between two adjacent members among the wide seal portion 12, the embossed wires 30 and 31 and the spout seal portion 15 (tip seal portion 9) increases as the distance from the spout portion 8 increases. Therefore, at the time of refilling, the lower right corner 2lr side of the spout 8 is more likely to expand further.

  In the present embodiment, the lower end 30b of the embossed wire 30 is positioned at the apex of the wide seal portion 12 (the maximum width position 13 of the wide seal portion 12) in the extending direction (vertical direction) of the right edge 2R (left edge 2L). It is located between the tip 30a of the embossed wire 30. Therefore, when the user picks the lower right corner 2lr with a finger and hangs the bag-filled product 1B so that the spout portion 8 faces downward, and the spout portion 8 bulges outward, the lower end of the emboss wire 30 The swelling of the spout 8 is hardly suppressed by 30b.

  In the present embodiment, the tip seal portion 9 is provided with a corner 2Ta4 of a recess 2Ta which is a notch as an opening means. Therefore, it becomes easy to open the front-end | tip part of the spout part 8 by the corner | angular part 2Ta4 (opening means).

  In the present embodiment, an opening guide wire 20 extending across the spout portion 8, the spout seal portion 15 and the embossed wires 30 and 31 is formed in the spout portion 8 and the tip seal portion 9. Therefore, the tip of the spout 8 can be opened along the opening guide line 20. Therefore, the shape of the opening 33 (spout) formed in the spout 8 after opening is difficult to collapse. As a result, the contents can easily flow out of the opening 33 smoothly.

[Other Embodiments]
As mentioned above, although embodiment of this invention was described in detail, you may add a various deformation | transformation to said embodiment within the range of the summary of this invention. For example, other embossed lines may be formed on the sheets 2 and 3 in addition to the embossed lines 30 and 31. That is, three or more embossed lines may be formed on each sheet 2, 3.

  The embossed line 30 may extend so as to substantially coincide with the virtual straight line VL.

  In the present embodiment, the opening OP for filling the contents in the refill bag 1A is formed between the right side seal portion 6 ′ and the upper seal portion 10 in the upper edge 2T. The opening OP may be formed in any of the upper edge 2T, the lower edge 2B, the right edge 2R, and the left edge 2L.

  The refill bag 1 </ b> A may not include the bottom tape 4 by folding one sheet to form the refill bag 1 </ b> A. In this case, a pair of sheets facing each other corresponds to the front laminated sheet 2 and the back laminated sheet 3 of the present embodiment.

  As shown in FIG. 9, the lower end 30 b of the embossed line 30 may be located on the side of the apex of the wide seal portion 12 (maximum width position 13 of the wide seal portion 12) in the vertical direction.

  As shown in FIG. 10, the spout seal portion 15 does not have the lower seal portion 11, and the hook portion F may be formed between the tip seal portion 9 and the wide seal portion 12. The hook part F is cut out so as to be recessed toward the spout part 8. By hooking the hook part F to the mouth part 62 of the container 61 when the contents of the bag-filled product 1B are refilled, the spout part 8 can be easily guided to the mouth part 62 of the container 61. As the cutout shape of the hook portion F, various shapes such as an arc shape, a rectangular shape, and a V shape may be employed.

  As shown in FIG. 11, the corner 2Ta4 functioning as the opening means may not be provided in the recess 2Ta, and the corner 2La3 as the opening means may be provided in the recess 2La. A corner 2La3 of the recess 2La located at the intersection of the first and second sides 2La1 and 2La2 protrudes toward the upper edge 2T.

  As FIG. 12 shows, corner | angular part 2Ta4 which functions as an opening means may exhibit acute angle shape (V shape).

  As shown in FIG. 13, the recess 2La is not formed on the left edge 2L, and the corner 2Ta4 functioning as the opening means is not provided in the recess 2Ta, and the notch 81 and the cut line 82 are used as the opening means. May be provided. The notch 81 is located between the wide seal portion 12 and the spout seal portion 15 in the left edge 2L. The notch 81 has a V shape. The cut line 82 passes through the sheets 2 and 3. The cut line 82 extends from the tip of the cutout portion 81 once toward the lower edge 2B side, then bends, and extends toward the left end of the opening guide line 20. Therefore, the score line 82 is a curved curve that is curved to have a J-shape. The user grips the upper and lower portions of the cutout portion 81 with fingers and applies forces in the opposite directions to the vicinity of the cutout portion 81 so that the cutout portion 81 and the cut line 82 are continuous. 3 is torn. When the user continuously applies forces in opposite directions to the vicinity of the cutout portion 81, the sheets 2 and 3 (the spout portion 8) are torn along the opening guide line 20 so as to continue from the cut line 82.

  In addition to the opening means described above, a scar group or an easy-opening processed portion may be formed on any of the upper edge 2T, the lower edge 2B, the right edge 2R, and the left edge 2L. The scar group is formed with a large number of minute through holes penetrating the sheets 2 and 3. The easy-open process part is formed by removing a layer outside the sealant layer 54 from the sheets 2 and 3 in a predetermined region.

  As shown in FIG. 14, the wide seal portion 12 may further swell toward the right edge 2 </ b> R so as to be close to the embossed line 30. In this case, since the spout part 8 becomes thinner, it becomes easier to insert the spout part 8 into the mouth part 62 of the container 61 at the time of refilling.

Example 1
First, a printing layer was provided on the inner surface of a polyester film (thickness 12 μm) using gravure ink. Printing was performed by gravure printing. Next, the printing surface of the polyester film and the nylon film (thickness 15 μm) were bonded together by a dry laminating method via a two-component curable urethane adhesive. Next, the nylon film and a linear low-density polyethylene (LLDPE) film (thickness 120 μm) were bonded together by a dry lamination method through a two-component curable urethane adhesive. . Thereby, the laminated sheet in which the polyester film, the printing layer, the adhesive layer, the nylon film, the adhesive layer, and the LLPDE film were laminated in this order was obtained.

  Next, the obtained laminated sheet was cut into a predetermined shape to obtain a front laminated sheet 2 and a back laminated sheet 3. The width of each sheet 2 and 3 was 140 mm, and the height of each sheet 2 and 3 was 220 mm. Next, embossed wires 30 and 31 were formed at predetermined locations on the sheets 2 and 3 using a press die R. The width of the embossed wires 30 and 31 was 3 mm, and the height of the embossed wires 30 and 31 was 2 mm. Next, five opening guide wires 20 were formed at predetermined locations using a carbon dioxide gas laser. Next, the bottom tape 4 is sandwiched between the lower end portions of the sheets 2 and 3 on the bag making machine, and the bottom seal portion 5, the left side seal portion 6, the right side seal portion 6 ′, and the spout seal portion 15. And a wide seal portion 12 were formed. Thus, a refill bag 1A in which an opening OP was formed between the right side seal portion 6 ′ and the upper seal portion 10 in the upper edge 2T was obtained.

  Next, 400 ml of highly viscous shampoo was filled into the refill bag 1A from the opening OP. Next, the opening OP was sealed to form the top seal portion 7, thereby obtaining a bag-packed product 1B according to Example 1.

  Next, the tip of the spout 8 was torn along the opening guide line 20 from the corner 2Ta4 of the recess 2Ta, and the bag-filled product 1B was opened at the spout 8. Next, the contents of the bag-packed product 1B were refilled from the spout 8 into a plastic container 61. At this time, while observing the state of the bag-filled product 1B and measuring the time required for refilling, the refill performance of the contents by the bag-filled product 1B was evaluated.

(Comparative Example 1)
A bag-packed product 101B according to Comparative Example 1 configured in the same manner as the bag-packed product 1B according to Example 1 was prepared except that the configuration of the embossed wire 130 was mainly different. Using the bag packed product 101B according to Comparative Example 1, the refill performance of the contents was evaluated in the same manner as the bag packed product 1B according to Example 1.

  As shown in FIG. 15, the embossed wire 130 is located at the spout 8 and has a linear shape. The tip 130 a of the embossed wire 130 is located in the vicinity of the tip of the spout 8 and is directed toward the tip of the spout 8. The lower end 130b of the embossed wire 130 was directed to the lower right corner 21lr side (the lower end side of the right edge 2R). The embossed wire 130 was wider than the embossed wires 30 and 31 of the bag-packed product 1B according to Example 1. The width of the embossed wire 130 became smaller toward the tip 130a. The width of the embossed wire 130 on the front end 130a side was 100 mm, and the width of the embossed wire 130 on the lower end 130b side was 250 mm. The embossed wire 130 of the front laminated sheet 2 and the embossed wire 130 of the back laminated sheet 3 face each other, and a space V3 was formed between the embossed wires 130.

(Comparative Example 2)
The bag-packed product 102B according to the comparative example 2 configured mainly in the same manner as the bag-packed product 1B according to the example 1 except that the wide seal portion 12 is not provided and the configuration of the embossed wires 131 to 134 is different. Prepared. Using the bag-packed product 102B according to Comparative Example 2, the refill performance of the contents was evaluated in the same manner as the bag-packed product 1B according to Example 1.

  The embossed wires 131 to 134 were located at the spout 8 as shown in FIG. The widths of the embossed wires 131 to 134 were all 2 mm. The embossed wire 131 was in a straight line shape, and was directed from the distal end side of the spout 8 to the lower right corner 2lr side. The embossed line 132 is located on the left side edge 2L side than the embossed line 131, and is curved so as to approach the left side edge 2L side as the distance from the tip of the spout 8 is increased. The embossed wire 133 is located closer to the right edge 2R side than the embossed wire 131, and is curved so as to approach the right edge 2R side as the distance from the tip of the spout 8 is increased. The embossed line 134 had a semicircular arc shape with the apex toward the lower right corner 2lr. One end of the embossed wire 134 faces the lower end of the embossed wire 132, and the other end of the embossed wire 134 faces the lower end of the embossed wire 133.

(Evaluation results)
When the state of the bag-packed product 1B according to Example 1 at the time of refilling was observed, the spout portion 8 was likely to expand in a funnel shape, and bending and blockage at the spout portion 8 were not confirmed. In the bag-filled product 1B according to Example 1, when the time required for refilling was measured three times, it was 21 seconds, 28 seconds, and 23 seconds, and the refilling operation was completed quickly and smoothly.

  When the state of the bag-filled product 101B according to Comparative Example 1 at the time of refilling was observed, no bending or blockage at the spout 8 was confirmed, but the spout 8 was difficult to expand. In the bag-filled product 101B according to Comparative Example 1, when the time required for refilling was measured three times, it was 56 seconds, 69 seconds, and 56 seconds, and it took a long time for refilling work.

  When the state of the bag-packed product 102B according to Comparative Example 2 at the time of refilling was observed, no bending or blockage at the spout portion 8 was confirmed, but the spout portion 8 was slightly difficult to expand. In the bag-packed product 101B according to Comparative Example 1, when the time required for refilling was measured three times, it was 30 seconds, 48 seconds, and 34 seconds, and it took some time for the refilling work.

Second Embodiment
[Technical field]
The second embodiment relates to a refill packaging bag for storing toiletries such as liquid detergents and softeners, and foods such as edible oil and instant coffee.

[Background technology]
As containers for storing toiletries such as liquid detergents and softeners, and foods such as edible oil and instant coffee, dedicated containers each having an easy-to-use shape, such as plastic bottles and glass bottles, are used. These dedicated containers have a solid structure and are therefore expensive, so that they can be used repeatedly when the contents are gone. Refillable packaging bags for replenishing the contents of such special containers are sold separately.

  However, these dedicated containers are exclusively designed so that the contents can be easily poured out, so that the convenience of the refilling operation of refilling the contents from the refilling packaging bag is not always considered.

  Conventionally, as a refill packaging bag for storing contents having fluidity such as liquid, it is possible to easily and safely refill the contents into a dedicated container, and at the same time, the empty bag is not bulky, It is desirable that disposal after use should be easy, and from this point, a packaging bag with a spout part having a narrow spout part provided by heat sealing at a part of the top of the bag is often used. ing.

  However, such a packaging bag has a common disadvantage that the width of the spout portion is narrow, so that the openability of the opened spout portion is poor, and even if the spout portion is opened, the spout portion is Because it is made of the same flexible material as the above, the rigidity of the spout is inferior, and the spout opening that is opened in the middle of pouring closes, and depending on the contents, not only the spout spout, Even in the inner region part, the front and back laminated films are close to each other, and the flow of the contents to the spout part is partially hindered at this part, and it is difficult to pour the contents, especially in the latter half of the pouring. There was a problem. In particular, in the case of contents such as viscous liquid detergents and cosmetics, there is a problem that it is more difficult to pour out.

  As a method for improving these, there is a proposal as described in Patent Document 1 above. It is a bag formed by sealing the periphery of the film, and is provided at the upper corner of the bag so that the spout part projects obliquely upward along the outer contour of the bag, And two or more reinforcing mechanisms formed by one or more linear deformations formed by deformation of the film, each of the reinforcing mechanisms being mutually attached along the outline of the bag on the film surface of the spout portion. They are arranged at an acute angle and are connected to each other by another reinforcing mechanism at the end of the larger distance. This prevents bending of the spout part, but the front and back films close together in the area inside the spout part, and the contents are poured out in the second half of the spout. There is a problem that becomes difficult.

  There is another proposal as disclosed in Patent Document 2. In a laminated film bag provided with a narrow outlet port formed by heat-sealing the outer periphery of a part of the upper part of the bag, an opening means is provided at an opening position near the tip of the outlet port, A first embossing is provided in the form of a rod in the vicinity of the tip of the spout portion toward the inside of the bag, assisting the opening of the spout portion and preventing its bending, and from the base of the spout portion. When the contents are poured into the inner region of the bag, the second portion assists the spread of the laminated film on both sides of the laminated film to the outside and prevents the clogging of the portion due to the adhesion between the laminated films. The embossed portion is provided in a rod shape so that the distance between both ends is wider than the width of the base portion of the spout portion and forms a downward arc shape or V shape. It assists the opening of the spout, prevents bending, and prevents blockage in the region inside the base of the spout, but the first embossed wire and the second embossed wire Since the inner region is variously formed, the appearance of the bag tends to deteriorate, and there is a problem that it is difficult to pour the contents in the second half of the pour.

  Therefore, there is a demand for a refillable packaging bag that does not bend at the spout and that can smoothly pour out the contents even in the latter half of the pour.

[Task]
The second embodiment has been made in view of such a background. There is no bending at the spout portion, and the refill packaging can smoothly pour the contents even in the second half of the pour. To provide a bag.

[Means for solving problems]
In order to solve the above problems, the inventor has intensively studied and completed the second embodiment.

  (A) The 1st example of 2nd Embodiment consists of a top seal part, a right-and-left side seal part, and a bottom seal part, forms a storage part inside, and seals one side of a top seal part and a right-and-left side seal part A spout portion formed with a tip seal portion, an upper seal portion and a lower seal portion so as to face obliquely upward at the upper corner of the spout portion, and an opening guide wire is provided at the tip portion of the spout portion In the refill packaging bag formed, a convex arc-shaped wide seal portion is formed on the side seal portion connected to the lower seal portion forming the spout portion and connected to the lower seal portion. In the spout part, the first embossed line is formed on the diagonal line that is assumed to be the bottom, with one point beyond the opening guide line as the base point, and the opening guide is formed below the top seal part. Refilling, characterized in that the second embossed line is formed with one point beyond the line as the base point It is a packaging bag.

  (B) In the second example of the second embodiment, the first embossed line is formed up to the position of the maximum width of the arc-shaped wide seal portion, and the refill packaging according to (A) It is a bag.

  (C) In the third example of the second embodiment, when a parallel line is drawn parallel to the inner edge, starting from the inner edge of the top seal part and the lowest part of the recessed part of the upper seal part, The width of an inner edge and a parallel line is 8 mm or less, It is a packaging bag for refill as described in (A) or (B) characterized by the above-mentioned.

[effect]
The refill packaging bag of the second embodiment can smoothly pour out the contents without bending or blocking at the spout and without blocking at the inner region of the spout.

  In addition, by forming an arc-shaped wide seal portion that is connected to the lower seal portion and that extends inward on the side seal portion that is connected to the lower seal portion that forms the spout portion, the contents are smoothly poured out. can do.

  In addition, on the spout part, a point that exceeds the unsealing guide line as a base point, on the diagonal line assumed toward the bottom part, a substantially straight first embossed line is formed, and at the bottom of the top seal part, By forming the second embossed line from the one point beyond the opening guide line, it is possible to prevent the outlet part from being bent or blocked, and to open the outlet part by expanding it. it can.

  In addition, by forming the second embossed wire at the lower part of the top seal portion, when pouring out, the inner region portion of the spout portion can be expanded in a shape like a funnel. Combined with one embossed wire, it can be poured smoothly.

  Further, by forming the first embossed line up to the position of the maximum width of the arc-shaped wide seal part, the inner region part of the spout part can be effectively expanded together with the second embossed line, and from the spout part The contents can be smoothly poured out, and in particular, it takes less time to pour out the high-viscosity contents compared to the conventional refill packaging bags, and can be refilled.

  In addition, when a parallel line is drawn parallel to the inner edge starting from the inner edge of the top seal part and the lowest part of the recess of the upper seal part, the width between the inner edge and the parallel line is 8 mm or less. As a result, the inner region of the spout can be maintained in an expanded state as if the funnel was inverted.

  The refill packaging bag according to the second embodiment smoothly packs the contents even in the latter half of the pouring, without being bent or blocked at the spout and without clogging at the area inside the spout. Can be replaced. It can be refilled more quickly than conventional refill packaging bags.

[Detailed Description of Second Embodiment]
Hereinafter, the second embodiment will be described.

  FIG. 17 is an explanatory diagram showing an example of a refill packaging bag according to the second embodiment. The refill packaging bag 1 is an example of a self-supporting type packaging bag. It is the refillable packaging bag 1 which has a spout part in an outer direction in an upper corner part. It consists of two laminated sheets 2 and 3 and a bottom tape 4. The front and back laminated sheets 2 and 3 and the bottom tape 4 are flexible sheets. The bottom tape 4 is inserted between the lower parts of the two laminated sheets 2 and 3 while being folded, the bottom is sealed, the bottom seal 5 is sealed, the left and right sides are sealed, and the side seals 6 and 6 'are The top seal portion 7 is formed. The spout portion 8 includes a tip seal portion 9, an upper seal portion 10, and a lower seal portion 11, and the upper seal portion 10 is connected to the tip seal portion 9 and the top seal portion 7. In addition, the lower seal portion 11 is connected to the arcuate wide seal portion 12 that is formed in the tip seal portion 9 and the side seal portion 6 on the inside.

  An opening guide wire 20 for opening the spout 8 is formed at the front end of the spout 8 at the boundary between the front seal 9, the upper seal 10 and the lower seal 11. 10 to the lower seal portion 11 across the spout portion 8.

  Further, the spout portion 8 is formed with a substantially straight first embossed wire 30 on a diagonal line that is assumed toward the bottom, with one point beyond the opening guide line 20 as a base point. In addition, a second embossed wire 31 that is curved toward the top seal portion 7 is formed at a lower portion of the top seal portion 7 with one point beyond the opening guide line 20 as a base point.

  In this way, by providing the arc-shaped wide seal portion 12 connected to the lower seal portion, the first embossed wire 30 and the second embossed wire 31, bending at the spout portion 8 is prevented, and the spout portion and The inner region of the spout portion can be expanded and opened, and the contents can be smoothly poured out. Even in the second half of the extraction, the contents can be extracted smoothly.

  Also, when the parallel line B is drawn parallel to the inner edge starting from the inner edge of the top seal part 7 and the lowest part of the recessed part of the upper seal part 10, the width between the inner edge and the parallel line When A is 8 mm or less, the inner region of the spout can be maintained in an expanded state in a funnel-like shape.

  FIG. 18 is an explanatory diagram illustrating another example of the refill packaging bag according to the second embodiment. An example is shown in which the first embossed line is formed up to the maximum width position 13 of the arc-shaped wide seal portion 12. The spout portion 8 has a first embossed wire 30 formed in a substantially straight line on a diagonal line that is assumed to be directed toward the bottom, with one point beyond the opening guide line 20 as a base point. In addition, a second embossed wire 31 that is curved toward the top seal portion 7 is formed at a lower portion of the top seal portion 7 with one point beyond the opening guide line 20 as a base point. Further, a convex arcuate wide seal portion 12 is formed on the inner side so as to be connected to the lower seal portion 11. Moreover, the inner side area | region part 40 is formed inside the spout part. By forming the first embossed wire 30 up to the position 13 of the maximum width of the arc-shaped wide seal portion 12, the inner region portion 40 of the spout portion can be expanded and opened, and it is blocked even in the latter half of the pouring. The contents can be poured out smoothly.

  Further, the opening guide line 20 is formed at the boundary between the tip seal portion 9, the upper seal portion 10, and the lower seal portion 11. A plurality of opening guide lines 20 may be provided above and below the basic opening guide line. 17 and 18 show an example in which five opening guide lines are formed.

  FIG. 19 is an explanatory diagram showing an example of a cross section of the spout portion. The front laminated sheet 2 and the back laminated sheet 3 are sealed by the upper seal part 10 and the lower seal part 11, and the spout part 8 is formed. On the front laminated sheet 2 and the back laminated sheet 3, the first embossed wires 30 are formed symmetrically. Moreover, the 2nd emboss line 31 is also formed symmetrically, respectively. Since the first embossed wire 30 and the second embossed wire 31 are embossed from the inner surface to the outer surface of the laminated sheet, the embossed portions formed symmetrically with each other show a hollow state.

  FIG. 20 is an explanatory diagram illustrating an example of a cross section of the spout portion at the time of pouring. The front laminated sheet 2 and the back laminated sheet 3 are in an expanded state due to their own weight. The first embossed wire 30 and the second embossed wire 31 formed on the front laminated sheet 2 and the back laminated sheet 3 are expanded, and the intermediate portion 32 between the first embossed wire 30 and the second embossed wire 31 is also expanded, The whole spout part has shown the state which opened 33. FIG. The contents can be poured out smoothly. Further, as shown in FIG. 18, by forming the first embossed line up to the maximum width position 13 of the wide seal portion, the inner region of the spout portion is further expanded and opened, and the contents are smoothly poured out. can do.

  FIG. 21 shows an example of a state in which the refill packaging bag of the second embodiment is refilled with a plastic bottle. A state in which the tip seal portion is cut out along the opening guide line to form a spout, and then the spout is inserted into the mouth portion 62 of the plastic bottle 61 so as to pour out with the packaging bag 1 facing upward is shown. . The first embossed wire 30 and the second embossed wire 31 are expanded by the weight of the contents, and the spout portion 8 and the inner region portion 40 of the spout portion are expanded and opened to show a state of being smoothly poured out. ing. Further, since the contents easily flow along the arcuate wide seal portion 12, the contents can be quickly poured out.

  Drawing 22 is an explanatory view showing an example of the section of the lamination sheet which forms the packaging bag for refilling of a 2nd embodiment. A laminated sheet 50 shown in FIG. 22A shows an example in which at least a base material layer 51 having a print layer 52 and a sealant layer 54 are laminated via an adhesive layer 53. It consists of the base material layer 51 / printing layer 52 / adhesive layer 53 / sealant layer 54 from the front side.

  FIG. 23 is an explanatory diagram showing an example of a cross section of a portion of the laminated sheet in which the opening guide line in FIG. 17 is formed. In the laminated sheet 50 shown in FIG. 23A, a half cut 56 is formed in which an opening guide line penetrates the base material layer 51 from the front side to the sealant layer 54. An example is shown in which the half cuts 56 are formed at regular intervals.

  The refill packaging bag according to the second embodiment can be smoothly poured out without being bent or blocked at the spout portion and without being blocked at the inner region of the spout portion. Even in the latter half of the dispensing, the front and back laminated films can be refilled without adhering and blocking. Compared to conventional refill packaging bags, it can be refilled quickly.

  Further, the second embodiment will be described in detail.

  The refill packaging bag 1 according to the second embodiment can be used as a three-sided seal type packaging bag or a gusset type packaging bag in addition to a self-supporting type packaging bag, depending on the usage pattern, content volume, and design. It is.

  As the base material layer 51, a plastic film, paper, a nonwoven fabric, etc. can be used. Examples of the plastic film include polyester film, polypropylene film, polystyrene film, nylon film, polycarbonate film, polyacrylonitrile film, and polyimide film. There is no particular limitation as long as it has mechanical strength and dimensional stability. A biaxially stretched film is particularly preferable. Moreover, what provided the aluminum vapor deposition layer in these films may be used.

  As the paper, high-quality paper, piece art paper, coated paper, cast coated paper, imitation paper, and the like can be used. What is necessary is just to determine suitably from mechanical strength or bag making appropriateness.

  The base material layer 51 can be appropriately provided with a print layer 52 as necessary. The printing layer 52 is a layer printed with an ink obtained by adding various pigments, extender pigments, plasticizers, drying agents, stabilizers, and the like to binder resins such as urethane, acrylic, nitrocellulose, and rubber. . As the printing method, for example, known printing methods such as offset printing, gravure printing, flexographic printing, silk screen printing, and ink jet printing can be used. Moreover, the adhesiveness of a printing layer can be improved by performing the corona treatment or the ozone treatment on the surface of a base material layer as a pretreatment beforehand.

  As the sealant layer 54, a polyolefin-based resin is generally used. Specifically, a low density polyethylene, a linear low density polyethylene, a medium density polyethylene, a high density polyethylene, an ethylene-vinyl acetate copolymer (EVA). Polyolefin resins such as ethylene-methacrylic acid copolymer (EMAA), ethylene-ethyl acrylate copolymer (EAA), ionomer, and polypropylene can be used. These resins can be formed into a film by an extruder. It may be a single layer or multiple layers. The thickness of the film is preferably in the range of 50 to 200 μm.

  As the adhesive layer 53, an adhesive for dry lamination can be used. For example, a two-component curable urethane adhesive, a polyester urethane adhesive, a polyether urethane adhesive, an acrylic adhesive, a polyester adhesive, a polyamide adhesive, an epoxy adhesive, and the like can be used. . As a bonding method, a dry lamination method is possible.

  Also, if it is necessary to improve the physical properties of the laminated sheet, for example, when improving the rigidity, drop strength, puncture strength, etc. of the laminated sheet, when improving the barrier properties such as water vapor or oxygen gas, etc. It is also possible to provide a layer.

  As the intermediate layer 55, for example, a nylon film, a polyester film, or the like can be used to improve rigidity, drop strength, piercing strength, and aluminum foil, aluminum can be used to improve water vapor barrier properties. A vapor deposition polyester film, an inorganic oxide vapor deposition polyester film, etc. can be used. Moreover, in order to improve cosmetics, the polyester film etc. which have the aluminum vapor deposition layer can be used. Moreover, in order to laminate | stack an intermediate | middle layer, it can bond together by the dry lamination method through an contact bonding layer. For example, as shown in FIG. 22B, the base layer 51 / printing layer 52 / adhesive layer 53 / intermediate layer 55 / adhesive layer 53 / sealant layer 54 are configured from the front side. Further, in the configuration of the laminated sheet in which the opening guide line is formed, the half cut 56 is formed so as to penetrate the base material layer 51 and the intermediate layer 55 and reach the sealant layer 54 as shown in FIG. It will be.

  As the inorganic oxide, metal oxides such as silicon oxide, aluminum oxide, magnesium oxide, calcium oxide, potassium oxide, tin oxide, sodium oxide, boron oxide, titanium oxide, lead oxide, zirconium oxide, and yttrium oxide can be used. . Of these, silicon oxide, aluminum oxide, magnesium oxide and the like are preferable from the viewpoint of productivity and price.

  The first embossed wire 30 and the second embossed wire 31 can be formed by heat molding or low temperature molding using a press mold or an embossing roll plate in which a linear embossing mold is formed. The linear emboss is formed so that the outer direction of the laminated sheet is convex. It is formed with the inner surface side being hollow. The first embossed line 30 is formed in a substantially straight line on a diagonal line assumed toward the bottom, with one point beyond the opening guide line as a base point. Further, the second embossed line 31 is formed at the lower part of the top seal part by being bent toward the top seal part starting from one point beyond the opening guide line. By forming the curved portion, the inner region of the spout portion can be widened.

  The first embossed line and the second embossed line can be formed by embossing each of the front and back laminated sheets on the bag making machine. The cross-sectional shape of the emboss is usually formed in a semicircular shape, but it is not necessary to limit the shape. An appropriate shape may be determined as appropriate based on the viscosity of the contents. The width and height of the emboss are not particularly limited, but the width is preferably about 1 to 15 mm and the height is preferably about 2 to 4 mm.

  The opening guide wire 20 is preferably a half cut that penetrates the base material layer and reaches the sealant layer. The number of opening guide lines 20 may be one, and a plurality of opening guide lines may be provided in parallel, such as one or two each above and below the central opening guide line. The unsealing guide wire can be formed by a Thomson blade or a laser, but a laser method is preferable because it can be uniformly half-cut. As the type of laser, a carbon dioxide laser is preferable. The opening guide line is processed at a predetermined position before or after bag making.

  Further, the opening start portion can be punched with a Thomson blade or press punched with a mold. The opening start portion can be a straight or curved slit line or a V-shaped cut end. It is possible to form it at a desired position after bag making.

  The refill packaging bag according to the second embodiment selects a bag making machine capable of making a bag corresponding to the shape of the packaging bag, and forms a spout portion on the bag making machine. It can be created by appropriately adding a laser beam irradiating device for providing an embossing device and an embossing device for providing an embossed wire.

  Hereinafter, specific examples of the second embodiment will be described.

[Example of the second embodiment]
A printing layer was provided on the inner surface of the polyester film 12 μm using gravure ink. Printing was performed by gravure printing.

  The printed surface of the polyester film and a nylon film of 15 μm were bonded together by a dry laminating method through a two-component curable urethane adhesive.

  Next, a linear low density polyethylene film (LLDPE) 120 μm was bonded to the nylon film surface by a dry laminating method via a two-component curable urethane adhesive. A laminated sheet was created. The layer structure of the laminated sheet is polyester film 12 μm / printing layer / adhesive / nylon film 15 μm / adhesive / linear low density polyethylene film 120 μm.

  Next, the laminated sheet is thermoformed using a press die in which an embossing die is formed at a desired position on the two front and back laminated sheets and slit at a predetermined width on the two front and back laminated sheets and the bottom tape. A first embossed line and a second embossed line as shown in FIG. 17 were formed. The first emboss line and the second emboss line were formed with an emboss width of 3 mm and an emboss height of 2 mm. Subsequently, five opening guide lines were formed by a carbon dioxide laser at a desired position. Next, the bottom tape is sandwiched between the lower parts of the two front and back laminated sheets on the bag making machine, the bottom and both sides are sealed, and the bottom seal part, forming the side seal part, An upper seal part and a lower seal part were formed to form a spout part. At this time, an arcuate wide seal portion convex inward was formed in the side seal portion in connection with the lower seal portion. A packaging bag having an opening for filling the contents was formed on the top. In the spout portion, the first embossed line is formed on a substantially straight line on the diagonal assumed toward the bottom, with one point exceeding the opening guide line, and the second embossed line is also It was formed by curving at the lower part of the opening, with one point beyond the opening guide line as a base point.

  From the opening of this packaging bag, 400 ml of a highly viscous shampoo was filled, and the opening was sealed to form a top seal portion to create a sealed self-supporting packaging bag.

[Evaluation method]
Fifty self-supporting packaging bags were made and evaluated for refillability into plastic bottles. Bending and blockage at the spout portion and blockage of the inner region of the spout portion were confirmed.

  There was no bending or blockage at the spout and no blockage of the inner region of the spout, and it was possible to smoothly pour out.

  DESCRIPTION OF SYMBOLS 1 ... Packing bag for refill, 1A ... Bag for refill, 1B ... Bag-packed product, 2 ... Front laminated sheet, 2T ... Upper edge, 2B ... Lower edge, 2R ... Right edge, 2L ... Left edge, 2ll ... Lower left Corner, 2lr ... lower right corner, 2ul ... upper left corner, 2ur ... upper right corner, 3 ... back laminated sheet, 4 ... bottom tape, 5 ... bottom seal, 6 ... left side seal, 6 '... right Side seal part, 7 ... top seal part, 8 ... spout part, 9 ... tip seal part, 10 ... upper seal part, 11 ... lower seal part, 12 ... arc-shaped wide seal part, 13 ... position of maximum width , 14 ... upper corner part, 20 ... opening guide line, 30 ... first embossed line, 31 ... second embossed line, 32 ... intermediate part between the first embossed line and second embossed line, 33 ... opening part, 40 ... Inner area part of spout part, 50 ... laminated sheet, 51 ... base material layer, 52 ... printed layer, 53 ... adhesive layer, 54 ... sea run Layer 55 ... intermediate layer 56 ... half cut 61 ... plastic bottle 62 ... mouth part 70 ... refilled state of plastic bottle A: width between inner edge and parallel line B ... parallel line F ... Hook part, S ... seal part, VL ... virtual straight line.

Claims (14)

A pair of sheets;
A seal portion in which peripheral edges of the pair of sheets are partially sealed in a state where the pair of sheets are overlaid,
Each of the pair of sheets is
A pair of first and second side edges extending along one direction;
An upper edge extending between an upper end of the first side edge and an upper end of the second side edge;
A tapered spout portion which is provided at a corner where the first side edge and the upper edge intersect, and becomes thinner toward the tip;
And first and second line composed of a concave corresponding to the ridges in the ridge and the inner surface side of the sheet that projects outward at the outer surface side of said sheet,
The seal portion is
A wide seal portion formed so as to protrude toward the second side edge at least near the spout portion of the first side edge;
A spout seal part formed so as to continuously extend from the wide seal part around the spout part,
The spout seal part is
A tip seal portion located around the tip of the spout;
An upper seal portion extending continuously from the tip seal portion along the upper edge;
A lower seal portion that extends continuously from the tip seal portion along the first side edge,
The portion of the first side edge that forms the outer edge of the lower seal portion is positioned closer to the second side edge than the portion of the first side edge that forms the outer edge of the wide seal portion. ,
The vertex located on the innermost side of the wide seal portion is located on the second side edge side with respect to the inner edge of the lower seal portion, and on the side farther from the upper edge than the inner edge of the lower seal portion. Located
The first line extends linearly from the vicinity of the tip of the spout portion toward the lower end of the second side edge,
The second line is positioned on said edge than the first line, extending in a curved curved so as to protrude toward the first line,
One end of the second line is directed to the tip end side of the spout part in the vicinity of the tip part of the spout part, and the other end of the second line is directed to the upper edge side. bag. The refill packaging bag according to claim 1, wherein the first line extends along an imaginary straight line connecting a tip of the spout portion and a lower end of the second side edge. In a direction perpendicular to the first line, the wide seal portion and the length between the first line, the length between the said first line second line, and the second The length between the line and the tip seal part is set so as to increase from the tip side of the spout part toward the lower end of the second line. The refill packaging bag described. Lower end of the first line, in the first and second extending direction of the side edge, located between the upper end of the vertices bulging innermost first line of the wide sealing portion The refill packaging bag according to any one of claims 1 to 3.   The refilling packaging bag according to any one of claims 1 to 4, wherein the spout sealing portion is provided with an opening means for opening a tip portion of the spout portion. The spout and the spout seal portion, the spout portion, the first line and the opening guide wire extending across the second line are formed any of claims 1 to 5 A refill packaging bag according to claim 1.   The hook part cut out so that it may become depressed toward the said spout part is formed between the said wide seal | sticker part and the said spout part seal part. Refill packaging bag.   The refill packaging bag according to any one of claims 1 to 7, wherein the seal part is formed by sealing the peripheral edges of the pair of sheets as a whole with the contents filled therein. . The seal part further includes a top seal part formed on the upper edge so as to continuously extend from the tip of the upper seal part,
The linear distance between the inner edge of the top seal portion and a virtual parallel line that passes through the lower end portion of the inner edge of the upper seal portion and extends substantially parallel to the inner edge of the top seal portion is 8 mm or less. Refill packaging bag. Forming a storage part inside by the top seal part, left and right side seal part and bottom seal part ;
And it is formed by the one spout tip seal portion facing Oite obliquely upward to the upper corner portion of the side seal portion of the top seal portion and the left and right side sealing portion, the upper seal portion and lower seal portion ,
To one side seal portion which connects with the lower seal portion of the left and right side sealing portion, forming a convex wide seal portion on the inner side and connected to the side seal portion of the one and the lower seal portion And
In the spout part,
From near the tip of the spout, and a first embossed line linearly extending toward the other of the lower end of the side seal portion of the left and right side sealing portion,
Located in the top seal portion than before Symbol first embossed lines, and forming a second embossed lines extending in curved curved so as to protrude toward the first embossing line,
One end of the second embossed wire is toward the tip side of the spout portion in the vicinity of the tip portion of the spout portion, and the other end of the second embossed wire is toward the top seal portion side,
The outer edge of the one side seal part is located on the other side seal part side than the outer edge of the wide seal part,
The apex located on the innermost side of the wide seal portion is located on the other side seal portion side with respect to the inner edge of the lower seal portion, and is located on the bottom seal portion side with respect to the lower seal portion. The manufacturing method of the packaging bag for refilling. The manufacturing method of the packaging bag for refill of Claim 10 in which the opening guide wire is formed in the front-end | tip part of the said spout part. The method for manufacturing a refill packaging bag according to claim 10 or 11, wherein the first embossed line extends along an imaginary straight line connecting a tip of the spout part and a lower end of the other side seal part. . The method for manufacturing a refill packaging bag according to any one of claims 10 to 12, wherein the first embossed line is formed up to a position of the maximum width of the wide seal portion. The width between the inner edge and the parallel line when a parallel line is drawn parallel to the inner edge starting from the inner edge of the top seal part and the lowest part of the recess of the upper seal part The manufacturing method of the packaging bag for refill as described in any one of Claims 10-13 characterized by the above-mentioned.

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