JP2014218300A - Tetrahedron shaped packaging body, and tetrahedron shaped packaging method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tetrahedron shaped packaging body structured of a bag body having tearing parts which are arranged so as to face to the bag body formed of a packaging sheet and can be respectively torn easily, efficiently, and artificially.SOLUTION: A tetrahedron shaped packaging body includes: a seam part 6 which seals an opening part for inputting packaged objects inside a bag body BG structured of a resin film; and a seam part, a fold part, or a fastener part, which faces to the seam part 6 and is orthogonal to the seam part 6, and maintains a tetrahedron bag body and a shape thereof. The packaging body is structured of a three-layered resin film, and includes a cutout part 7 in an approximately center part of the seam part 6. A first tearing part 8 is formed from the cutout part 7 through the seam part 6 to one corner part of the opposite seam part, fold part, or fastener part, and tears the three-layered resin film. A second tearing part 9 is formed from a lower part of the cutout part through the seam part 6 to the other corner part of the opposite seam part, fold part, or fastener part, and tears the three-layered resin film.

Description

Detailed Description of the Invention

  The present invention relates to a four-sided three-dimensional package (truss-like three-dimensional package) and a four-sided three-dimensional packaging method. The present invention relates to a four-sided three-dimensional package that forms a four-sided three-dimensional package using a packaging sheet and a four-sided three-dimensional packaging method that produces a four-dimensional three-dimensional package using a packaging sheet.

  The present invention relates to a four-sided three-dimensional package that forms a four-dimensional three-dimensional package using a packaging sheet made of a resin film having at least a three-layer structure, and a four-sided three-dimensional package using a packaging sheet that consists of a resin film having at least three-layer structure. The present invention relates to a four-dimensional three-dimensional packaging method for manufacturing a body.

  The present invention relates to a four-sided three-dimensional package using a packaging sheet made of a resin film, for example, a confectionery, processed food, agricultural product, etc. The present invention relates to a four-sided three-dimensional packaging method that uses a packaging sheet made of a resin film in which a package filled with an article to be packaged or the like has a four-dimensional shape.

  The four-sided three-dimensional package is used for beverages, particularly milk packs and bite-size knob packages, because a package with a minimum sheet area and a maximum internal volume can be obtained compared to a flat bag. The former milk pack is made of hard paper with a laminated inner surface, and most of the drinks are made by inserting a straw into a small hole opened upward. is not. The bite-sized knob package sold at the latter kiosk (registered trademark), etc. is torn and opened a part of a four-sided three-dimensional package formed with a thin plastic film, and the packaged goods to be packaged are opened. Take out and eat.

  As described above, the four-sided three-dimensional package has a feature that it has a maximum internal volume compared to a flat bag and has a truss structure, so that it has high strength and is not easily crushed by external force. Therefore, it can be said that it is suitable for packaging of food and the like that are crushed and damaged during stacked storage and transportation, and the quality of stored items is significantly impaired.

  The present inventor made a four-sided three-dimensional package that can be used as a container as it is when it is opened easily by tearing and opening a four-dimensional three-dimensional package composed of a packaging sheet made of a resin film. This is proposed in Patent Document 1 (WO2007 / 119780A1 Patent Publication).

  The four-sided three-dimensional package shown in Patent Document 1 (WO2007 / 119780A1) is composed of a bag having a packaging sheet made of a resin film, the bag having a left side heat-welded seam, and the left side. A right-hand side heat-welding seam facing the heat-welding seam, a lower-surface bent portion of the bag body, and an upper-surface opening provided on the upper surface of the bag body facing the lower-surface bent portion of the bag body, The four-dimensional packaging body in which the upper surface opening facing the bent portion is sealed and an upper surface heat-welded seam is formed in a direction perpendicular to the lower surface bent portion.

  The technique described in Patent Document 1 (WO2007 / 119780A1 patent publication) can be eaten without using tableware because the packaged body becomes a dish as it is when opened. It eliminates the need to wash dishes, saves time, and saves detergent and water, making it easy for the environment. In addition, there is no need for polystyrene foam trays used in flat bags, the cost of environmental destruction and disposal due to the use of trays, especially the release of carbon dioxide due to incineration, and the transportation of the package itself. It can be said that this technology improves the performance.

  The inventor also relates to a four-sided three-dimensional package having an outer bag and an inner bag, and allows one side of the four-dimensional three-dimensional package to enter and exit the inside of the outer bag and the inside of the inner bag. Therefore, Patent Document 2 (WO2008 / 112112A1 Patent Publication) shows a four-sided three-dimensional package having a fastener portion that can be opened and closed. Both end portions of the side surface facing the fastener portion of the outer bag body are sealed with a seal, and both end portions of the side surface facing the fastener portion of the inner bag body are sealed.

WO2007 / 119780A1 Patent Publication WO2008 / 112112A1 Patent Publication

  In a four-sided three-dimensional package using a bag composed of a packaging sheet made of a resin film, it is strongly opposed to the bag, and each of them can easily and efficiently tear tearable parts that can be artificially torn. It was desired.

  In a four-sided three-dimensional package using a bag made of a packaging sheet made of a resin film, it is placed facing the bag and each of the tear parts that can be torn artificially has good tearability. It was strongly desired to tear.

  In a four-sided three-dimensional package using a bag made of a packaging sheet made of a resin film, it is placed facing the bag and each of the tear parts that can be torn artificially is almost straight with strong straightness It was strongly desired to tear it cleanly in a straight line.

  In the four-sided three-dimensional packaging method using a bag body made of a packaging sheet made of a resin film, it is strongly desired to easily and efficiently tear tear portions that are arranged facing the bag body and each can be artificially torn. It was rare.

  In a four-sided three-dimensional packaging method using a bag body composed of a packaging sheet made of a resin film, the tear portions are arranged facing the bag body and each can be torn artificially with good tearability. It was strongly desired to tear.

  In a four-sided three-dimensional packaging method using a bag body made of a packaging sheet made of a resin film, the tear parts are arranged facing the bag body and each can be torn artificially with strong straightness. It was strongly desired to tear it cleanly in a straight line.

  The present invention has been made in order to solve the above-described problems, and the object thereof is to face a bag body made of a packaging sheet, and each has a tear portion that can be easily and efficiently torn. It is in a four-sided three-dimensional package composed of bags.

  The present invention has been made in order to solve the above-mentioned problems, and its object is to face a bag body made of a packaging sheet, each of which can be torn under good tearability artificially. It is in a four-sided three-dimensional package composed of a bag having a tearing portion.

  The present invention has been made in order to solve the above-described problems, and the object thereof is to face a bag body made of a packaging sheet, and each of the tear parts that can be torn artificially has a strong linearity. And a four-dimensional three-dimensional package formed of a bag having a tearable portion that can be torn off substantially linearly.

  The present invention has been made in order to solve the above-described problems, and its purpose is to face a bag made of a resin film packaging sheet, each of which can be easily and efficiently torn. It is in the four-dimensional three-dimensional packaging method comprised from the bag body which has a part.

  The present invention has been made in order to solve the above-mentioned problems, and its purpose is to face a bag body made of a resin film packaging sheet, each of which is based on artificially good tearability. The present invention resides in a four-sided three-dimensional packaging method composed of a bag having a tearable tearable part.

  The present invention has been made in order to solve the above-mentioned problems, and its purpose is to face a bag body made of a packaging sheet of a resin film, and each of them is almost straight under artificially strong straightness. The present invention is a four-sided three-dimensional packaging method composed of a bag body having a cleanly tearing portion in a straight line.

  The present invention relates to a seam portion that seals an opening portion into which an article to be packaged is placed inside a bag body made of a resin film, and a seam portion or a crease portion facing the seam portion and orthogonal to the seam portion, or In a four-sided three-dimensional package that has a fastener portion and maintains and retains a four-sided cubic bag, the resin film is composed of at least three layers of resin film, and a cutout portion is provided at substantially the center of the seam portion. A first tearing portion that tears the at least three layers of resin film from the notch portion through the seam portion and toward the opposite seam portion or crease portion or one corner portion of the fastener portion; Tearing the at least three layers of resin film from the lower part of the sheet toward the other corner of the opposing seam or crease or fastener part through the seam part There in that a tear portion in tetrahedral stereo-like packaging body, wherein.

  The present invention forms a seam portion that seals an opening for charging an object to be packaged inside a bag body made of a resin film, faces the seam portion, and is perpendicular to the seam portion or a crease. In a four-sided three-dimensional packaging method for forming a part or a fastener part to maintain and retain a four-sided cubic bag body, the resin film is composed of at least three layers of resin film, and is cut out at a substantially central part of the seam part. Forming a first tearing portion that tears the at least three layers of the resin film from the cutout portion through the seam portion and toward the opposite seam portion or crease portion or one corner portion of the fastener portion. The at least three layers of resin films passing from the lower part of the notch part through the seam part to the opposite seam part or the crease part or the other corner part of the fastener part. In tetrahedral stereo-like packaging method characterized by forming a second tear portion tearing Lum.

  According to the present invention, a four-dimensional three-dimensional package having two tear parts that are arranged to face a bag body made of a packaging sheet of at least three layers of resin film, and each can be easily and efficiently torn. was gotten.

  According to the present invention, four surfaces having two tear portions that are arranged to face a bag body made of a packaging sheet of at least three layers of resin film, each of which can be torn under artificially good tearability. A three-dimensional package was obtained.

  According to the present invention, a four-sided three-dimensional packaging having two tear portions that are arranged to face a bag made of a packaging sheet of at least three layers of resin film, and each of which can be artificially teared in a substantially straight line. The body was obtained.

  According to the present invention, there is provided a four-sided three-dimensional packaging method having two tear portions that are arranged to face a bag body made of a packaging sheet of at least three layers of resin film and each can be easily and efficiently torn. Obtained.

  According to the present invention, a four-dimensional solid having two tearing portions that are disposed opposite to a bag body made of a packaging sheet of at least three layers of resin film and that can be torn under artificially good tearability. A shaped packaging method was obtained.

  According to the present invention, a four-sided three-dimensional packaging having two tear portions that are arranged to face a bag made of a packaging sheet of at least three layers of resin film, and each of which can be artificially teared in a substantially straight line. A method was obtained.

It is sectional drawing of the packaging sheet which comprises the four-plane three-dimensional package which shows one Example of this invention. It is a perspective view of the four-dimensional solid packaging body comprised with the packaging sheet which has two tear parts which shows one Example of this invention. It is a side view of the four-dimensional solid packaging body comprised with the packaging sheet which has two tear parts which shows one Example of this invention. FIG. 4 is a perspective view of the tearing portion of the bag body of the four-sided three-dimensional package of one embodiment of the present invention.

  Hereinafter, the configuration of the four-sided three-dimensional package and the four-dimensional three-dimensional packaging method according to one embodiment of the present invention will be described in detail. FIG. 1 is a cross-sectional view showing an embodiment of a packaging sheet constituting the four-dimensional solid packaging body of the present invention. The packaging sheet SH is composed of a film FM extending in the vertical direction of three layers of an outer film layer fm1, a middle film layer fm2, and an inner film layer fm3 made of three resin films. In addition, as packaging sheet SH, the resin film exceeding 3 layers resin film FM and 3 layers is employable.

  The outer film layer fm1 of the three-layer resin film FM is a polymer film made of a PET (polyethylene terephthalate) resin film. This outer film layer fm1 is about 10-40 μm in size, is an unstretched film, is a hard (stretchy) material, is difficult to stretch, and has poor stretchability. Thus, the outer film layer fm1 has strong strength and excellent heat resistance.

  The intermediate film layer fm2 of the three-layer resin film FM is a polymer film made of a uniaxially stretched film. This intermediate film layer fm2 has a size of about 10-40 μm, is composed of a material that is easily torn in one direction (longitudinal direction), and has excellent easy tearability. Further, the intermediate film layer fm2 can be torn straight and has high straightness in one direction (longitudinal direction).

  The inner film layer fm3 of the three-layer resin film FM is a polymer film made of a CP (unstretched polypropylene) film. This inner film layer fm3 is a non-stretched film with a size of about 10-40 μm, has excellent heat weldability, and has high sealing properties.

  The film FM is composed of a three-layer resin film sandwich structure of an outer film layer fm1, an intermediate film layer fm2, and an inner film layer fm3. An intermediate film layer fm2 that is uniaxially stretched and has high tearability in one direction (longitudinal direction) is sandwiched between an unstretched outer film layer fm1 and an unstretched inner film layer fm3.

  For this reason, the intermediate film layer fm2 sandwiched between the hard outer film layer fm1 and the hard inner film layer fm3 is laterally separated by the outer film layer fm1 having high heat weldability and the inner film layer fm3 having high heat weldability. Movement is blocked. Therefore, the intermediate film layer fm2 that is prevented from moving in the lateral direction is restrained from fluctuation in the lateral direction, and the intermediate film layer fm2 that is a uniaxially stretched film is unidirectional ( Torn straight in the vertical direction).

  The three-layer resin film FM according to an embodiment of the present invention includes a stretched intermediate film fm2 excellent in tearing property, and an outer side disposed so as to sandwich the intermediate film fm2 so as to face the intermediate film fm2 respectively. It is composed of a film layer fm1 and an inner film layer fm3, and the outer film layer fm1 and the inner film layer fm3 each have a heat welding property superior to that of the intermediate film fm2.

  FIG. 2 is a perspective view of a four-sided three-dimensional package including a packaging sheet having two tear portions, which is a four-sided three-dimensional package showing an embodiment of the present invention. The four-dimensional solid packaging body PC is composed of a packaging sheet SH made of a three-layer resin film FM.

  This four-sided three-dimensional package PC adopts, for example, two resin films FM having at least a three-layer structure, and first configures a flat bag body as described in Patent Document 1 (WO2007 / 119780A1 Patent Publication). The four-sided three-dimensional package PC is manufactured. Alternatively, this four-sided three-dimensional package PC employs, for example, one resin film having at least a three-layer structure and uses a vertical pillow wrapping machine to first configure a cylindrical bag body and then form a four-sided three-dimensional package. Produced on body PC.

  As shown in FIG. 2, the bag body BG of the four-sided three-dimensional package PC is formed by folding a three-layer film FM of the packaging sheet SH, and a first side fold portion 1 (side AB) and a second side fold portion. 2 (side CD). The first side fold portion 1 and the second side fold portion 2 of the packaging sheet SH of the four-sided three-dimensional package PC are arranged to face each other. The packaging sheet SH of the bag body BG of the four-sided three-dimensional package PC constitutes the third side fold portion 3 (side A-D) and the fourth side fold portion 4 (side CB). The third side crease part 3 and the fourth side crease part 4 of the packaging sheet SH of the four-sided three-dimensional packaging body PC are arranged to face each other.

  The lower corner B of the first side fold portion 1 of the bag BG (lower corner B of the fourth side fold portion 4) and the lower corner D of the second side fold portion 2 (the lower corner of the third side fold portion 3). A lower side bent portion 5 (side BD) connecting the portion D) is formed. The lower side bent portion 5 may be a lower side seam portion constituted by heat welding means. Further, the lower side bent portion 5 may be a fastener portion that is attached to the inside of the bag body and is configured by a fastener that can be opened or closed.

  As shown in FIG. 2, a horizontal upper surface seam portion (upper surface seam portion) 6 is formed by heat welding means or the like on the upper surface opening of the packaging sheet SH constituting the bag body BG of the four-sided three-dimensional packaging body PC. And sealed. The upper surface seam portion 6 is provided to face the lower side surface bent portion 5 and is provided substantially orthogonal to the lower side surface bent portion 5.

  Therefore, the four-sided three-dimensional package PC mainly includes the upper surface seam portion 6, the first side fold portion 1 and the second side fold portion 2, the third side fold portion 3, the fourth side fold portion 4, and the lower side fold portion 5. Consists of. The upper surface seam portion 6 of the four-dimensional three-dimensional package PC is provided on the upper surface of the bag body BG of the four-dimensional three-dimensional package PC so as to face the lower side bent portion 5 and to be substantially orthogonal. The upper surface seam 6 has upper corners E and corners F. The upper surface seam portion 6 includes a side (EA), a side (AC), a side (CF), and a side (FA).

  An article to be packaged is introduced into the bag body BG of the four-sided three-dimensional package PC in a state before the truss-like three-dimensional configuration is obtained from the upper surface opening. After the object to be packaged is put into the bag body BG, the upper surface opening is sealed by heat welding means to form the upper surface seam portion 6, and the truss-like three-dimensional body in which the object to be packaged is stored inside the bag body BG. A four-sided package PC having the structure is obtained.

  As shown in FIG. 2, a cutout portion 7 cut out in an inverted triangle shape is provided at substantially the center of the upper surface seam portion 6 of the packaging sheet SH constituting the bag body BG of the four-sided three-dimensional packaging body PC. . The tip of the notch 7 is positioned above the substantially central part (point G) of the side (AD) of the lower surface of the upper surface seam 6.

  In the four-sided three-dimensional package PC of one embodiment of the present invention, the bottom surface of the upper surface seam portion 6 extends from the lower end of the notch portion 7 of the upper surface seam portion 6 and passes through the upper surface seam portion 6. ), Two front side tearing portions 8 and a rear side tearing portion 9 are formed from the lower surface central portion (G point) of the upper surface seam portion 6 toward the lower side bent portion 5. Yes.

  That is, in the four-sided three-dimensional packaging body PC, the upper surface seam portion 6 passes through the upper surface seam portion 6 below the notch portion 7 provided in the upper surface seam portion 6 of the bag body BG of the four-surface three-dimensional packaging body PC. One corner of the lower side bent portion 5 that reaches the center portion (point G) of the lower surface (side A-D) and that is perpendicular to the upper surface seam portion 6 from the lower surface center portion (point G) of the upper surface seam portion 6 A front side tearing portion 8 toward the portion D is formed.

  Moreover, the lower surface (side A-D) of the upper surface seam part 6 passes through the upper surface seam part 6 below the notch part 7 provided in the upper surface seam part 14 of the bag body BG of the four-sided three-dimensional package PC. A back side tearing portion that reaches the center (point G) and further toward the other corner B of the lower side bent portion 5 that is orthogonal to the top surface seam 6 from the bottom center (point G) of the top seam 6 9 is formed.

  In the bag BG of the four-sided three-dimensional package PC of the above-described one embodiment of the present invention, the cutout portion 7 is cut out in an inverted triangle shape, but other shapes such as a U-shaped cutout portion are used. A simple linear notch may be used. The cutout portion including these cutout portions is provided at the start of tearing of each fold of the front surface side tearing portion 8 and the back surface side tearing portion 9, and the packaging sheet SH of the bag body BG of the four-sided three-dimensional packaging body PC. This is a rough guide for tearing.

  FIG. 3 is a side view of a four-dimensional package including a packaging sheet according to an embodiment of the present invention. In the four-dimensional three-dimensional package PC, the G point at the center of the lower surface (sides A to D) of the upper surface seam portion 6 passes through the upper surface seam portion 6 below the notch portion 7 provided in the upper surface seam portion 6. Further, a front surface side tearing portion 8 is formed which is directed to one corner D of the lower side bent portion 5 that is orthogonal to the upper surface seam portion 6 and is orthogonal thereto.

  Next, the tearing action of the four-sided three-dimensional package PC will be described. First, the peripheral part of the notch part 7 of the upper surface seam part 6 of the four-sided three-dimensional package PC is held by fingers of both hands. Subsequently, the front side tearing part 8 and the back side tearing part 9 are arranged on the outer side through the notch part 7 of the four-sided three-dimensional package PC through the center part (point G) of the lower surface (side AD) of the upper surface seam part 6. The film is cut from the upper side to the lower side along the three-layer resin film FM including the film layer fm1, the intermediate film layer fm2, and the inner film layer fm3.

  The front side tearing part 8 and the back side tearing part 9 are directed straightly from the upper side to the lower side with the three-layer resin film FM toward one corner D and the other corner B of the lower side bent part 5. Torn sequentially. The notch work can be started (started) very easily by the notch 7 provided in the upper surface seam 6.

  The upper surface seam portion 6 of the bag body BG of the packaging sheet SH of the four-sided three-dimensional package PC is separated into a left upper surface seam portion 6a and a right upper surface seam portion 6b (see FIG. 4). It is comprised from the upper surface notch part 7 of the packaging sheet SH of the bag body BG of the four-sided three-dimensional package PC to the outer side film layer fm1, the intermediate film layer fm2, and the inner side film layer fm3. The three-layer resin film FM is broken and peeled off, and the tearing process proceeds downward.

  The packaging sheet SH can be torn easily and efficiently along the front surface side tearing portion 8 and the back surface side tearing portion 9 with straightness. In this way, the resin film FM of the front surface side tearing portion 8 and the back surface side tearing portion 9 of the four-sided three-dimensional packaging body PC can be easily and artificially peeled to the left and right, and the four-sided three-dimensional packaging body PC can be easily obtained. Can be opened.

  FIG. 4 is a perspective view of a tearing portion of a bag body of a four-sided three-dimensional packaging body made of a packaging sheet according to an embodiment of the present invention. FIG. 4 is a perspective view in which a tearing portion of a four-dimensional solid packaging body made of a packaging sheet according to an embodiment of the present invention is torn into a boat shape. In FIG. 4, the resin film FM of the front surface side tearing part 8 and the back surface side tearing part 9 of the bag BG is torn sufficiently efficiently toward the lower side. The four-sided cubic package PC has a dish shape. For this reason, the four-sided cubic package PC can be used as tableware. Since the four-sided cubic package PC itself functions as tableware after opening, it is not necessary to prepare tableware for eating.

  DESCRIPTION OF SYMBOLS 1 ... 1st side crease part 2 ... 2nd side crease part 3 ... 3rd side crease part 4 ... 4th side crease part 5 ... Lower side crease part 6 ... Upper surface seam Part 6a: Left upper surface seam part 6b ... Right upper surface seam part 7 ... Notch part 8 ... Front side tear part 9 ... Back side tear part 17 A ... Corner part B ... -Corner part BG ... Bag body C ... Corner part D ... Corner part E ... Corner part F ... Corner part FM ... Resin film fm1 ... Outer film layer fm2 ... Intermediate film layer fm3 ... Outer film layer G ... Central part PC ... Four-sided cubic package SH ... Packaging sheet

Claims (4)

  A seam portion that seals an opening portion into which an article to be packaged is placed inside a bag body made of a resin film, and a seam portion, a fold portion, or a fastener portion that faces the seam portion and is orthogonal to the seam portion. Then, in a four-sided three-dimensional package that maintains and retains a four-sided cubic bag, the resin film is composed of at least three layers of resin film, and a cutout is provided at a substantially central portion of the seam portion. A first tearing part that tears the at least three layers of the resin film from the notch part through the seam part and toward one corner of the opposing seam part or the crease part or the fastener part, from the lower part of the notch part A second tear that tears the resin film of at least three layers toward the other corner of the opposing seam or crease or fastener part through the seam part Tetrahedral stereo-like wrapping body, characterized in that a part.   The four-sided three-dimensional package according to claim 1, wherein the at least three layers of the resin film are arranged such that a stretched film excellent in tearability and the stretched film are sandwiched between the stretched film and the stretched film, respectively. A four-dimensional three-dimensional package characterized in that each of the two films has a heat-welding property superior to that of the stretched film.   A seam portion that seals an opening portion into which an article to be packaged is placed is formed inside a bag body made of a resin film, and faces the seam portion and is orthogonal to the seam portion, or a fold portion or a fastener portion. In the four-sided three-dimensional packaging method for maintaining and retaining the shape of a four-sided cubic bag, the resin film is composed of at least three layers of resin film, and a cutout is provided at substantially the center of the seam portion. Forming a first tear portion that tears the at least three layers of resin film from the notch portion through the seam portion and toward the opposite seam portion or crease portion or one corner portion of the fastener portion; Pull the at least three layers of resin films from the lower part of the part through the seam part toward the other corner part of the opposing seam part or crease part or fastener part. Tetrahedral stereo-like packaging method is characterized in that the second tear portion formed rip.   4. The four-sided three-dimensional packaging method according to claim 3, wherein the at least three layers of the resin film are arranged such that a stretched film excellent in tearability and the stretched film are sandwiched between the stretched film and the stretched film, respectively. A four-dimensional three-dimensional packaging method characterized in that the two films each have a heat-welding property superior to that of the stretched film.

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