JP2016222331A - Gazette bag with spout - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a gazette bag with a spout which has self-standing performance when a content is refilled in a container.SOLUTION: A gazette bag with a spout includes a front surface and rear surface portion of a shell part, a right side surface and left side surface portion of the shell part, and a spout. The front surface and rear surface portion of the shell part have a substantially hexagonal shape having an upper shoulder part and a lower shoulder part, the right side surface and left side surface portion of the shell part is folded inwards in a vertical direction of the gazette bag, and the right side surface and left side surface portion of the shell part is so overlapped between the front surface and rear surface portion of the shell part as to be coincident with each facing side of the front surface and rear surface portion of the shell part. The spout is located at an upper center of the front surface and rear surface portion of the shell part. A content is filled in the gazette bag, and when the gazette is set upwards or downwards, the upper shoulder part or the lower shoulder part is embedded in the gazette bag.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a gusset bag with a spout (packaging bag with a cap) that contains a liquid or a viscous material as contents.

  Made of flexible packaging materials that use plastic film, metallized film, etc. as the main elements as viscous packaging liquids such as shampoos and conditioners, liquid packaging bags (containers) for liquid or jelly-like beverages, or refill bags (containers) A gusset bag (700) with a spout (extraction plug) is known (for example, Patent Documents 1 to 3). Such a spouted gusset bag (700) includes, for example, a rectangular body part right side sheet (706) between a rectangular body part front side sheet (702) and a body part back side sheet (704) as shown in FIG. ) And the fuselage left side sheet (708) so that the top, bottom, left and right sides of the fuselage part front and back sheets (702, 704) are aligned with each other, and the front and back sheets (702) of the fuselage part. 704) by means of a seal part (710) on each of the four sides of each body sheet (702, 704, 706, 708) so as to have a spout (712) with a spout cap (712a) between the upper center of It is sealed. Further, the rectangular body side left and right side sheets (706, 708) of the spouted gusset bag have a single fold (714, 716) in the substantially central portion, thereby forming a bag. It is designed to be folded inside the bag. The gusset bag of FIG. 7 has an upper side (718) that extends in the left-right direction of the bag (a direction perpendicular to the attachment direction of the spout) with the spout as a center.

  When such a gusset bag (700) with a spout is used as, for example, a refill bag (container), when refilling, the spout (712) of the gusset bag (700) is placed in a container (802) as shown in FIG. ) In the opening (804) and pour the contents into the container (802). At the time of this injection, the upper side (718) of the gusset bag (700) hits the opening (804) of the container (802), and the center of gravity of the gusset bag is increased, and the gusset bag (700) is held by hand. If not, for example, the gusset bag is swung to the body side front side and the back sheet side around the upper side (718) (arrow direction in FIG. 8), and the stability of the gusset bag is lacking. there were.

  Further, as shown in FIG. 9, the spouted gusset bag has a seal portion (902) on the lower side of the bag, so that when the liquid content is filled, the seal portion (902) is used as the gusset bag. There is a problem that the gusset bag has poor self-sustainability due to the rigidity of the seal portion.

  Moreover, in the upper side part and lower side part of the gusset bag with spout as described above, the hexagonal gusset bag obtained by obliquely cutting the four corners of the bag, which is the intersection of the front and back sides of the body part and the left and right side sheets, Is also disclosed (for example, Patent Document 4). However, the self-supporting stability of the gusset bag has not been improved sufficiently.

  There remains a need for a spouted gusset bag that overcomes the above problems.

Japanese Patent Laid-Open No. 10-72044 JP-A-11-91798 JP-A-11-208676 JP 2012-210978 A

  This invention is made | formed in view of the said prior art, and aims at providing the gusset bag with a spout which has a self-supporting property when refilling the contents in a container. Further, the present invention, as necessary, in the gusset bag with a spout having the self-supporting property, the self-supporting property of the gusset bag itself was ensured even when the gusset bag was upright with the contents filled. It aims at providing the gusset bag excellent in independence.

  The present invention is a gusset bag with a spout. This spouted gusset bag includes a body part surface part, a body part back surface part, a body part right side part, a body part left side part, and a spout with a cap, and the body part surface part and the body part back part are It has a substantially hexagonal shape having two upper shoulders with two upper corners cut and two lower shoulders with two lower corners cut, and the body part right side surface part and the body part The left side part is folded inward in the center part in the up-down direction of the gusset bag, and the body part right side surface part and the body part left side part are between the body part surface part and the body part back part. The body part right side surface part is overlaid so as to coincide with the opposite right side of the body part surface part and the body part back part, and the body part left side part is opposed to the body part surface part and the body part back part. Each left The gusset bag is a gusset bag in which the spout is disposed in the upper center of the body portion surface portion and the body portion rear surface portion, and the gusset bag is filled with contents in the gusset bag. The upper shoulder portion or the lower shoulder portion is formed so as to be buried inside the gusset bag when the gusset bag is raised with the spout facing upward or downward.

  The spouted gusset bag of the present invention is the above-described gusset bag, on the line connecting the end portions of the two upper shoulders on the body portion surface portion and the body portion rear surface portion, and the end portion on the center side of the gusset bag. And / or provided with an embossed mountain fold on the end of the two lower shoulders on the front surface of the body part and the back surface of the body part and connecting the end of the center side of the gusset bag. Features.

  ADVANTAGE OF THE INVENTION According to this invention, the gusset bag with a spout excellent in independence can be provided.

(A) is a front schematic diagram of the gusset bag with a spout of the present invention, and (b) is a schematic side view of the gusset bag with a spout of the present invention. It is the schematic which shows the shape of the spout of a gusset bag at the time of inject | pouring the content of the gusset bag with a spout of this invention to a container, and an upper shoulder part. (A)-(c) is the schematic for demonstrating the procedure of the manufacturing method of the gusset bag with a spout of this invention. FIG. 3 is a schematic plan view for illustrating a gusset bag with a spout of the present invention, which is provided with a mountain fold-shaped emboss for further improving the self-supporting property. It is a gusset bag with a spout of this invention, Comprising: It is a schematic perspective view which shows the state at the time of providing a mountain fold-shaped emboss and filling the contents. It is the photograph which copied the shape of the spout periphery part of the gusset bag at the time of inject | pouring the content of the gusset bag with a spout of this invention into a container. It is a perspective view which shows the outline of the conventional gusset bag with a spout. It is the schematic which shows a mode at the time of inject | pouring the content of the conventional gusset bag with a spout into a container. It is the schematic which shows a mode at the time of filling the content into the conventional gusset bag with a spout.

  Embodiments of the present invention will be described below with reference to the drawings. Note that terms such as “upper” and “lower” used in the present specification and claims are for convenience of explanation and do not define an absolute direction in space.

1) First Embodiment A first embodiment of the present invention will be described with reference to FIGS. In FIG. 1, the vertical direction of the drawing sheet is the height direction of the gusset bag, the side of the gusset bag with the spout is the upper part, and the opposite side is the lower part.

  As shown in FIGS. 1 (a) and 1 (b), the spout-equipped gusset bag (100) of the present invention has a body part surface part (102), a body part back part (104), a body part right side part (106), The body part left side part (108) (not shown) and the spout (110) provided with the cap (110a) are provided. The body part front surface part (102) and the body part back surface part (104) have an upper cut side (112) in which each upper corner is cut and a lower cut side (114) in which each lower corner is cut. The body portion right side surface portion and the body portion left side surface portion (106, 108) are folded inward at the center portion in the vertical direction of the gusset bag. These body part right side surface and left side surface part (106, 108) are between the body part surface part (102) and the body part back surface part (104), and the body part right side part (106) and the body part left side part (108). Are overlapped so that the opposite upper, lower, left and right sides of the body surface and the back surface (102, 104) coincide. And the spout (110) provided with the spout cap (110a) is arranged on the top seal part (116) at the upper center of the front and back parts (102, 104) of these body parts, and each part (102, 102) of each body part. 104, 106, 108) are sealed by a top seal (116) and a peripheral seal (118).

  The spout-equipped gusset bag of the present invention has the above-mentioned structure, the upper and lower full length portions (region A in FIG. 1), the lower portion (region B in FIG. 1), and the upper shoulder portion of the trunk (region in FIG. 1). C), trunk lower shoulder (region C ′ in FIG. 1), trunk central portion (region D in FIG. 1), bottom central portion (region E in FIG. 1), top seal portion (116), and peripheral seal portion (118). ). Moreover, the spouted gusset bag of this invention has a trunk | drum side part (area | region F of FIG.1 (b)) in a trunk | drum left-right side part.

  As shown in FIG. 2, the spouted gusset bag of the present invention has a trunk upper shoulder (region C in FIG. 1 (b)), for example, when the contents are transferred to the container (202). Sink. As a result, the boundary portion (204) between the upper shoulder portion of the trunk (region C in FIG. 1) and the middle portion of the trunk (region D in FIG. 1) is located outside the container (see FIG. When the body surface and the back surface of the gusset bag swell in an arc shape, or when the spout mounting side of the gusset bag is viewed from the spout side, it is substantially hexagonal or other shape (for example, approximately A rectangular shape, a substantially octagonal shape, etc.). As described above, the upper shoulder portion of the trunk (region C in FIG. 1B) is depressed inside the gusset bag due to its own weight, so that the center of gravity of the gusset bag is lowered and the self-supporting stability of the gusset bag is increased.

  Similarly, when the spout-equipped gusset bag of the present invention is placed upright with the spout facing upward, the body surface and the back surface of the body portion at the bottom of the gusset bag are also formed in the lower shoulder portion of the gusset bag due to its own weight. When the bottom portion is seen from the bottom side, it has a substantially hexagonal shape or other shape (for example, a substantially square shape, a substantially octagonal shape, etc.), and a lower shoulder portion of the trunk (region C ′ in FIG. 1). And the bottom center portion (region E in FIG. 1) are pushed into the gusset bag by the seal portion at the bottom center portion of the gusset bag, and the self-supporting stability of the bottom portion is increased.

  In the gusset bag with a spout of the present invention, the angle (α in FIG. 1) for forming the upper shoulder portion of the trunk and the lower shoulder portion of the trunk is the upper shoulder of the trunk for ensuring the self-supporting property of the gusset bag as described above. Is not particularly limited as long as it can realize the depression of the gusset bag (hereinafter also referred to as the function and function of the gusset bag) in the vicinity of the lower part and / or the lower shoulder of the trunk, but is preferably 30 to 60 degrees. 60 degrees is more preferable, and it is still more preferable that it is about 45 degrees.

  The spouted gusset bag of the present invention can have various sizes depending on the contents. For example, in the case of a refill gusset bag such as a shampoo or a conditioner, the top seal portion and the peripheral seal portion (116, 118). ) Including the vertical length (the length of the region A in FIG. 1) is 150 to 220 mm, preferably about 200 mm, and the width (the length of the region B in FIG. 1A) is 70 to 130 mm, preferably Is about 84 mm, and the thickness (the maximum length of the region F in FIG. 1B (the length when the bag is filled with the contents and inflated)) is 40 to 80 mm, preferably about 56 mm. . Moreover, the width dimension of the periphery seal part (118) of a gusset bag is 3-15 mm, Preferably it is 5-10 mm, and the width dimension of a top seal part is 5-30 mm, Preferably it is 15-20 mm.

The material used for the spouted gusset bag of the present invention is not particularly limited as long as the gusset bag can realize the function and function of the gusset bag as described above, and depends on the contents to be filled and the packaging application. Can be selected as appropriate. For example, polyethylene, polypropylene, polyethylene terephthalate, nylon, ethylene-vinyl acetate copolymer, ethylene-vinyl alcohol copolymer, or a composite material thereof can be used. Alternatively, a laminated film in which a metal foil such as aluminum, copper, iron, and stainless steel is sandwiched between the plastic films can be used. Furthermore, when gas barrier properties against oxygen and water vapor are required, metal such as aluminum, chromium, zinc, gold, silver, platinum, nickel, or inorganic oxides (Al ₂ O ₃ , SiO ₂ , MgO, etc.) are deposited. It is also possible to use a thin film. The thickness of the film varies depending on the material of the bag, the size of the bag, and the contents, but it is several μm to several hundred μm, preferably 50 to 150 μm.

  A method known in the art can be applied to the method for producing the spouted gusset bag of the present invention. For example, it can be performed by the following procedure as shown in FIG. 3A to 3C schematically illustrate a part of the flow of manufacturing the spouted gusset bag of the present invention.

  First, films for the body surface and the back surface that are continuous in the flow direction (102 ′, 104 ′), and films for the right and left sides of the body portion that are continuous in the flow direction (106 ′, 108 ′). Is prepared (FIG. 3A). Next, the fuselage right side and left side film (106 ′, 108 ′) is opened in the lateral direction before being positioned between the fuselage front and back film (102 ′, 104 ′) 2. Processing into a folded state (FIG. 3B).

  Among these members, the fuselage left side and right side film (106 ′, 108 ′) are located between the fuselage front and back film (102 ′, 104 ′), and the peripheral parts (116, 118). The peripheral seal part (118) excluding the top seal part (116) is thermocompression-bonded. Next, the gusset bag portion is cut out along the outer peripheral edge subjected to thermocompression bonding, a separately prepared spout (110) is inserted into the top seal portion (116), the top seal portion (116) is thermocompression bonded, and the gusset with spout is attached. A bag is obtained (FIG. 3 (c)).

  As a means for thermocompression bonding, a pressing process using a heating mold, a pressing process using an ultrasonic mold, or the like can be used.

  The spouted gusset bag of the present invention includes, for example, various chemicals in the chemical industry (shampoos, conditioners, liquid baths, liquid detergents, etc.), and various products in the food industry (soft drinks, nutrients, mineral water, food oil) Such as coffee, liquor such as coffee or liquor, liquid foods, instant foods, etc.), etc. In particular, the spouted gusset bag of the present invention can be used as a refill bag for various chemicals (shampoos, conditioners, liquid bath agents, liquid detergents, etc.) in the chemical industry.

2) 2nd Embodiment The gusset bag with a spout of the 2nd Embodiment of this invention is demonstrated with reference to FIGS. In FIG. 4, the body part right side surface part (106) and the body part left side part (108) described above are omitted in order to avoid complication. Moreover, in FIG. 4, let the side provided with the spout of a gusset bag be an upper part, and let the opposite side be a lower part.

  As shown in FIG. 4, the spouted gusset bag (100) of the present invention is an end portion of the two upper shoulder portions on the body surface portion at the body surface portion (102). On the line (404) connecting the end portions (402, 402 ′) on the center side and the end portions of the two lower shoulder portions on the surface portion of the body portion, the end portions (406, 406 ') can be provided on or near the lines (408), with mountain-folded upper embossments. Similarly, in the body part back surface part (104), the line (412) connecting the end parts (410, 410 ′) of the two upper shoulder parts on the body part back surface part and on the center side of the gusset bag. ) On the line (416) connecting the upper end of the two lower shoulders on the back side of the body part and the end (414, 414 ') on the center side of the gusset bag, or these A mountain-folded lower embossing can be provided in the vicinity of the line. In the present invention, as shown in FIG. 4, it is preferable to provide embossing on both the body surface and the back surface (102, 104). In the present invention, at least one of the upper emboss and the lower emboss may be provided.

  In this specification, “mountain fold” refers to a method of folding a member that forms a mountain-shaped convex shape toward the outer surface when the gusset bag is formed on a constituent member of the gusset bag. The “mountain fold emboss” refers to an emboss for forming the “mountain fold” as described above.

  The positions where the upper embossing and the lower embossing are provided, that is, the lines (404, 412, 408, 416) of the upper shoulder portion and the lower shoulder portion described above fill the gusset bag with the contents, When viewed from the upper side or the lower side, the body surface and the back surface (102, 104) of the gusset bag spread in an arc shape, or the gusset bag is substantially rectangular or hexagonal by upper embossing and lower embossing. Or what is necessary is just to provide so that it may become a substantially octagon. That is, the upper embossing and the lower embossing may be provided not only on the lines but also in a region close to the lines.

  By providing such an embossing, the upper shoulder part (region C in FIG. 1 (a)) and / or the lower shoulder part (region C ′ in FIG. 1 (a)) as described above are formed in the gusset bag. When the contents are filled, it is possible to further promote the depression into the gusset bag due to its own weight. Further, as shown in FIG. 5, when the contents are filled, the portions provided with the upper and lower embosses are more likely to bulge in the outer direction of the body surface and the back surface portion of the gusset bag, and the gusset bag with spout is self-supporting. Increased stability.

  The embossing is performed, for example, with respect to the body surface and back film (102 ′, 104 ′) of the spouted gusset bag in the outer direction of the two films (up and down direction on the paper surface of FIG. 3). A mountain fold emboss may be provided. For example, the embossing can be applied to the body surface and the back surface film (102 ′, 104 ′) by means such as a pressing process in the outer direction of the both films (up and down direction in FIG. 3). . A spouted gusset bag having a mountain fold emboss can be manufactured according to the above-described procedure using the body surface and the back surface (102, 104) subjected to embossing.

Example 1
A spouted gusset bag as shown in FIG. 1 was prepared. The material of the gusset bag is a nylon film having a thickness of 15 μm, an aluminum-deposited polyethylene terephthalate film having a thickness of 12 μm, and a polyethylene film having a thickness of 100 μm, and is dry using an ester-urethane two-component curable adhesive. A laminated composite film. As for the dimensions of the gusset bag, the vertical length (the length of the region A in FIG. 1) is 200 mm, the width (the length of the region B in FIG. 1 (a)) is 84 mm, and the thickness (of FIG. 1 (b)). Region F) is 56 mm. Moreover, the width dimension of the periphery seal part (118) of a gusset bag is 5 mm, and the width dimension of a top seal part is 15 mm. Such a gusset bag was filled with the contents (shampoo) and inserted upside down into the inlet of an empty container. This state is shown in the photograph of FIG. As shown in FIG. 6, since the gusset bag with spout of the present invention has an upper shoulder, the upper shoulder spreads outward due to its own weight, the spout is pushed into the gusset bag, and the seal portion is depressed. It can be seen that independence is increasing even if it exists.

100 Spouted gusset bag 102 Body part surface part 102 'Body part surface part film 104 Body part back part 104' Body part back part film 106 Body part right side part 106 'Body part right side part film 108 Body part left side part 108' Body part left side film 110 Spout 110a Spout cap 112 Upper cut side 114 Lower cut side 116 Top seal part 118 Peripheral seal part 202 Container 204 Boundary parts 402, 402 ′, 410, 410 ′ between the upper shoulder part of the fuselage and the center part of the fuselage Upper shoulder ends 404, 412 Lines 406, 406 ′ 414, 414 ′ connecting upper shoulder ends 406, 416 Lines connecting lower shoulder ends 408, 416 Lines connecting upper shoulder ends 700 Spouted gusset bag 702 Body part front side sheet 704 Body part back side sheet 706 Body part right side sheet 708 Body part left side sheet 710 Seal part 712 Spout 712a Cap 714, 716 Folding line 718 Upper side part 802 Container 804 Container opening

Claims (2)

  In the gusset bag with a spout, the gusset bag includes a body part surface, a body part back surface part, a body part right side part, a body part left side part, and a spout with a cap, the body part surface part and the The body part back surface part has a substantially hexagonal shape having two upper shoulder parts cut at two upper corners and two lower shoulder parts cut at two lower corners thereof, and the body part The right side surface portion and the left side portion of the body portion are folded inward in the center portion in the vertical direction of the gusset bag, and the right side surface portion and the left side surface portion of the body portion are the surface portion of the body portion and the body portion. The fuselage part right side surface part is overlapped between the part back surface parts so as to coincide with the opposite right side of the body part surface part and the body part back surface part, and the body part left side part is overlapped with the body part surface part and the body part. Back The spout is arranged at the upper center of the body part surface part and the body part back part, and the body part surface part, body part back part, body The gusset bag is a gusset bag in which the respective peripheral edge portions of the right side surface portion and the left side surface portion of the trunk portion are sealed, and the gusset bag is filled with the contents, and the gusset bag is set up with a spout upward or downward. A spouted gusset bag, wherein the upper shoulder portion or the lower shoulder portion is formed so as to be buried inside the gusset bag.   The spouted gusset bag according to claim 1, wherein the two upper shoulder portions on the body portion surface portion and the trunk portion rear surface portion are on the line connecting the end portions on the center side of the gusset bag or the same. Mountain folds in the vicinity and / or on the ends of the two lower shoulders on the body surface and on the back of the body, on or near the line connecting the ends on the center side of the gusset bag A gusset bag with a spout, characterized by providing embossing.