JP2019156477A - Pouch - Google Patents

Abstract

To provide a pouch which can eat contents without replacing on a dish, and in which the contents are taken out easily.SOLUTION: Depending on one embodiment of this invention, in a pouch 10 which is formed by a sheet of packaging material 20 having at least a base material layer 21 and a sealant layer 22, and has a front face 11 and a reverse face 12, when a folding portion formed by folding the packaging material 20 in half is a bottom portion 10A, an outer edge seal portion 13 which is formed from a first end portion 10Aa of the bottom portion 10A to a second end portion 10Ab opposed to the first end portion 10Aa along an outer edge portion 10C of the pouch 10 that passes an upper portion 10B of the pouch 10 in the lateral direction of the pouch 10, and a picking portion 15 which is provided to the upper portion 10B of the pouch 10 are comprised, and seal strength in the case of 15 mm width of the outer edge seal portion 13 is 30 N or less.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a pouch.

  Conventionally, pouches that can contain contents such as snacks have been widely used. Such a pouch is opened and eats the contents, but the contents may be eaten by a plurality of people.

  When the contents are eaten by a plurality of people, the contents are often transferred from the pouch to a dish after opening the pouch. However, at present, it is desired to eat the contents using the pouch as it is without transferring the contents from the pouch to a dish.

  Among the pouches, there is also a pouch that can be used as a tray after opening the pouch from the joint end portion at the center of the back surface (see, for example, Patent Document 1).

JP-A-11-301734

  However, in such a pouch, since the package is opened from the joint end portion at the center of the back surface, when used as a tray, there is a problem that the outlet is narrow and it is difficult to take out the contents.

  The present invention has been made to solve the above problems. That is, an object of the present invention is to provide a pouch capable of eating the contents without being transferred to a dish and easily taking out the contents.

  According to one aspect of the present invention, the pouch is formed of a single packaging material having at least a base material layer and a sealant layer, and has a front surface and a back surface. The formed folded portion is a bottom portion, and extends from the first end portion of the bottom portion in the lateral direction of the pouch along the outer edge portion of the pouch that passes through the upper portion of the pouch, and is opposite to the first end portion of the bottom portion. A pouch having an outer edge seal portion formed up to the second end portion and a knob provided at the upper portion of the pouch, wherein the outer edge seal portion has a seal strength at a width of 15 mm of 30 N or less. Provided.

  In the pouch, the outer edge seal portion includes a first seal portion formed from the upper portion of the pouch to the first end portion of the bottom portion, and from the upper portion of the pouch to the second end portion of the bottom portion. And a second direction that is inclined in the first direction downward and the second seal portion is in a direction opposite to the first direction. It may be inclined.

  The pouch may further include point seal portions provided in the vicinity of both lower end portions of the outer edge seal portion.

  The said pouch WHEREIN: The said knob | pick part may be provided in the said front surface side and the said back surface side, respectively.

  In the pouch, the knob portion may be constituted by a seal portion.

  According to one aspect of the present invention, it is possible to provide a pouch that can eat the contents without being transferred to a dish and can easily take out the contents.

It is a perspective view of the pouch concerning an embodiment. It is a front view of the pouch shown by FIG. It is an expanded view of the pouch shown by FIG. FIG. 2 is a top view of the vicinity of a pick portion of the pouch shown in FIG. 1. It is sectional drawing of the packaging material used for the pouch which concerns on embodiment. It is a front view of the other pouch which concerns on embodiment. FIG. 7 is a development view of the pouch shown in FIG. 6. It is a figure of the state which opened the pouch shown by FIG.

  Hereinafter, a pouch according to an embodiment of the present invention will be described with reference to the drawings. 1 is a perspective view of the pouch according to the present embodiment, FIG. 2 is a front view of the pouch shown in FIG. 1, FIG. 3 is a development view of the pouch shown in FIG. 1, and FIG. FIG. 5 is a cross-sectional view of the packaging material used for the pouch according to the present embodiment. FIG. 6 is a front view of another pouch according to the present embodiment, FIG. 7 is a development view of the pouch shown in FIG. 6, and FIG. 8 is a view of the pouch shown in FIG.

<< Pouch >>
The pouch 10 shown in FIG. 1 is composed of a single packaging material and has a storage space for storing contents. Although it does not specifically limit as a content, A foodstuff etc. are mentioned. Specific contents include snacks and the like. However, the contents are not limited to snacks.

  Snacks include rice crackers such as rice crackers and hail, direct puff snacks, potato chips, corn chips, nuts, pretzels, popcorn, etc. Is mentioned. In addition, the snack confectionery shape | molded from these raw materials may be fried or may not be fried.

  A pouch 10 shown in FIG. 1 has a front surface 11 and a back surface 12. The front surface 11 and the back surface 12 of the pouch 10 shown in FIG. 1 have an isosceles triangular outline. However, the contour shape of the front surface and the back surface is not particularly limited. The pouch 10 having the front surface 11 and the back surface 12 having an isosceles triangular shape is formed by using a square packaging material 20 shown in FIG. The packaging material is not limited to a square shape as long as it has a line-symmetric shape.

  The pouch 10 has a folded portion formed by half-folding the packaging material as a bottom portion 10A, and the pouch 10 is a first portion of the bottom portion 10A in the X direction (see FIGS. 1 and 2) which is the lateral direction of the pouch 10. An outer edge seal portion 13 formed from the end portion 10Aa to the second end portion 10Ab opposite to the first end portion 10Aa in the bottom portion 10A along the outer edge portion 10C of the pouch 10 passing through the upper portion 10B of the pouch 10 and the outer edge Point seal portions 14 provided in the vicinity of both lower end portions 13 </ b> C of the portion seal portion 13.

<Outer edge seal part>
The outer edge seal portion 13 seals between the front surface 11 and the back surface 12. The width W1 (see FIG. 2) of the outer edge seal portion 13 is preferably 3 mm or more and 15 mm or less, for example. If the width W1 of the outer edge seal portion 13 is 3 mm or more, the outer edge portion 10C can be reliably sealed, and if it is 15 mm or less, a wider accommodation space can be secured. In this specification, “width” in each seal portion means a length in a direction orthogonal to the extending direction of the seal portion. In addition, when the width | variety of a seal part is not constant, let the width | variety of a seal part be the shortest value among the length of the direction orthogonal to the direction where a seal part is extended.

  The seal strength with a width of 15 mm at the outer edge seal portion 13 is 30 N or less. When the seal strength is 30 N or less, the front surface and the back surface can be easily peeled off, so that the contents can be easily taken out. The sealing strength can be achieved, for example, when an easy peel film is used as the front surface and the back surface. The lower limit of the seal strength with a width of 15 mm in the outer edge seal portion is preferably 2N or more from the viewpoint of maintaining the sealing performance of the outer edge seal portion. Further, the upper limit of the seal strength with a width of 15 mm in the outer edge seal portion is more preferably 20 N or less, 15 N or less, and 10 N or less (the smaller the value, the more preferable).

  The above-mentioned seal strength is compliant with JIS Z0238: 1998 using a Tensilon tensile tester (model number “RTC-1310A”, manufactured by Orientec Co., Ltd.) in an atmosphere of 23 ° C. and relative humidity of 50% ± 10%. Shall be measured. Specifically, the outer edge seal portion is cut out in a direction perpendicular to the outer edge seal portion to produce a rectangular test piece having a short side having a width of 15 mm. The test piece has a front surface and a back surface separated by 15 mm from one tip in the long side direction. Thereafter, a portion of the front surface that is separated from the back surface and a portion of the back surface that is separated from the front surface are each gripped by the pair of gripping tools of the tensile tester. Then, one gripping tool and the other gripping tool are pulled in directions opposite to each other in the direction orthogonal to the surface direction of the outer edge seal portion at a speed of 300 mm / min, and the maximum value of the tensile stress is measured. Use seal strength. The seal strength of the outer edge seal portion is an arithmetic average value of the seal strength measured using three test pieces cut out from random positions of the outer edge seal portion.

  The outer edge seal part 13 is formed from the upper part 10B of the pouch 10 to the first end part 10Aa of the bottom part 10A, and from the upper part 10B of the pouch 10 to the second end part 10Ab of the bottom part 10A. And a second seal portion 13B. Since the front surface 11 and the back surface 12 of the pouch 10 have isosceles triangular outlines, the first seal portion 13A is inclined downward in the first direction DR1 from the upper portion 10B, The two seal portions 13B are inclined downward from the upper portion 10B in a second direction DR2 that is opposite to the first direction DR1.

<Point seal part>
The point seal portion 14 is provided in the vicinity of both lower end portions 13C of the outer edge seal portion 13. However, by providing the point seal portion 14, a corner portion is formed at a portion where the point seal portion 14 exists when opened. In addition, since the side surface of the packaging material stands, the pouch 10 has a deep dish shape.

  As shown in FIG. 3, the point seal portion 14 on the first seal portion 13A side is provided in a direction orthogonal to the direction in which the first seal portion 13A extends (first direction DR1), and the second seal portion 13B side It is preferable that the point seal part 14 is provided in a direction orthogonal to the direction (second direction DR2) in which the second seal part 13B extends as shown in FIG. In FIG. 3, the point seal portion 14 on the first seal portion 13A side is connected to the first seal portion 13A, and the point seal portion 14 on the second seal portion 13B side is connected to the second seal portion 13B. Has been.

  On the upper part 10 </ b> B of the pouch 10, there is provided a knob 15 that serves as a trigger for opening the pouch 10.

<Picking part>
The knob | pick part 15 is provided in the front surface 11 and the back surface 12, respectively, as FIG.1 and FIG.4 shows. By providing the knobs 15 on the front surface 11 and the back surface 12, respectively, it can be opened more easily. The knob portion 15 is formed from a seal portion. By forming the knob portion 15 from the seal portion, the sealing performance of the pouch 10 can be maintained. Specifically, the knob portion 15 on the front surface 11 side is formed by heat-sealing part of the sealant layers of the packaging material on the front surface 11, and the knob portion 15 on the back surface 12 side is It is formed by heat-sealing the sealant layers of part of the packaging material on the back surface 12.

  The knob portion 15 on the front surface 11 side protrudes toward the front surface 11 side in the Z direction (see FIG. 1), which is the thickness direction of the pouch 10, and the knob portion 15 on the back surface 12 side extends in the Z direction ( It protrudes to the back surface 12 side of FIG. The Y direction shown in FIG. 1 means the height direction of the pouch 10.

  The width W2 (see FIG. 1) of the knob 15 is preferably, for example, 5 mm or more and 20 mm or less, respectively. If the width W2 of the knob portion 15 is 5 mm or more, the knob portion 15 can be easily grasped, and if it is 20 mm or less, a wider accommodation space can be secured.

  The pouch 10 is composed of a single packaging material. Specifically, as shown in FIG. 5, the pouch 10 is composed of a packaging material 20 including at least a base material layer 21 and a sealant layer 22 in this order. . The packaging material 20 shown in FIG. 5 further includes a bonding layer 23 between the base material layer 21 and the sealant layer 22. The laminated film may include a base layer / bonding layer / intermediate layer / bonding layer / sealant layer in this order.

<Base material layer>
As the base material layer 21, for example, a stretched polyethylene terephthalate film, a silica-deposited stretched polyethylene terephthalate film, an alumina-deposited stretched polyethylene terephthalate film, a stretched nylon film, a stretched polypropylene film, or a composite film in which two or more of these films are laminated is used. Can do.

  The base material layer 21 is preferably biaxially stretched. Thereby, the molecule | numerator which comprises the base material layer 21 is located in a extending | stretching direction by an extending | stretching process, and the base material layer 21 comes to exhibit the outstanding dimensional stability.

  The thickness of the base material layer 21 can be, for example, 6 μm or more and 40 μm or less. If the thickness of the base material layer 21 is 6 μm or more, the heat resistance required for the pouch 10 can be satisfied, and if it is 40 μm or less, the product cost can be suppressed. The thickness of the base material layer 21 is obtained as an arithmetic average value of the measured thickness by randomly measuring 10 thicknesses from a cross-sectional photograph of the base material layer taken using an optical microscope. In the pouch, the base material layer 21 is disposed on the outermost side.

<Sealant layer>
The sealant layer 22 is provided in order to seal the accommodation space of the pouch 10 by folding one sheet of the packaging material 20 in two and overlapping and heat-sealing the ends. For this reason, in the pouch 10, it arrange | positions so that the sealant layer 22 may become the accommodation space side most.

  The sealant layer 22 is not particularly limited as long as the seal strength at the 15 mm width of the first seal portion and the second seal portion is 30 N or less, respectively. For example, an easy peel film can be used.

  The easy peel film may be either a cohesive peel type or a correlated peel type. The easy peelable film can be composed of, for example, a laminate layer, a core layer, and a seal layer, and can be formed by coextrusion.

  Examples of the core layer of the easy peel film include a polypropylene layer. For example, a polypropylene resin mainly containing a polyethylene resin can be used for the seal layer of the easy peel film.

  The seal layer of the easy peelable film is preferably composed of a first resin and a second resin that is incompatible with the first resin from the viewpoint of easy peelability. Examples of the first resin include polypropylene, and examples of the second resin include polyethylene, polybutene, and polystyrene. By adding a second resin that is incompatible with the first resin into the seal layer, the first resin and the second resin are fused even if the first resin between the sealant layers is fused by heating and pressurization. Therefore, it is possible to reduce the fusion area between the sealant layers, thereby easily peeling off.

  The thickness of the sealant layer 22 is preferably 15 μm or more. If the thickness of the sealant layer 22 is 15 μm or more, stable sealing properties and sufficient sealing strength can be obtained. The thickness of the sealant layer 22 can be measured by the same method as the thickness of the base material layer 21.

<Junction layer>
As the bonding layer 23, for example, an adhesive generally used in a known dry lamination method can be used. For example, a polyvinyl acetate adhesive, a polyacrylate adhesive, a cyanoacrylate adhesive, An ethylene copolymer adhesive, a cellulose adhesive, a polyester adhesive, a polyamide adhesive, an amino resin adhesive, an epoxy adhesive, a polyurethane adhesive, and the like can be used. The polyurethane-based adhesive is a cured product of a polyol compound and an isocyanate compound.

  Further, as the bonding layer 23, an extrusion lamination method may be used. In that case, an anchor coat agent and a resin generally used in a known extrusion laminating method can be used. As the anchor coating agent, for example, an imine-based, polyurethane-based, polybutadiene-based, or emulsion-based anchor coating agent can be used. Examples of the resin include various resins such as polyethylene, linear long-chain polyethylene (L-LDPE), polypropylene, and ethylene / methacrylic acid copolymer (EMAA).

<Intermediate layer>
The intermediate layer is a layer for supplementing various functions required for the pouch. For example, when the pouch 10 contains food as contents, the intermediate layer prevents light shielding and water vapor transmission so that the contents can be preserved while preventing deterioration such as oxidation of the contents. It may have vapor barrier properties and gas barrier properties that prevent permeation of gases such as oxygen gas. Further, the intermediate layer may have a function of sufficiently improving the concealment so that the contents of the pouch 10 are not visible in order to increase the consumer's willingness to purchase. The intermediate layer may have a function of increasing rigidity and puncture strength.

<< Pouch Manufacturing Method >>
The pouch 10 shown in FIG. 1 can be manufactured as follows. First, a single square packaging material 20 is prepared. Next, the square-shaped packaging material is half-folded so that the sealant layer 22 is on the inside, thereby forming a triangular shape. And the part used as the lower half and the point seal | sticker part 14 in the both sides of the folded packaging material is heat-sealed, and it is set as a bag shape. Thereafter, the bag-like packaging material 20 is filled with the contents. After filling the contents, a portion to be the knob portion 15 is picked on the front surface 11 and the back surface 12, and in that state, heat sealing is performed, and the knob portion 15 is formed on the front surface 11 and the back surface 12 side, respectively. To do. After the knob portion 15 is formed, the upper half of the both side portions of the packaging material 20 is heat-sealed to form the outer edge seal portion 13. Thereby, the pouch 10 shown in FIG. 1 is obtained.

<< Other pouches >>
The contours of the front surface 11 and the back surface 12 of the pouch 10 are isosceles triangles. However, the contours of the front surface 11 and the back surface 12 are regular triangles (see FIG. 6A), and the tops of the regular triangles are curved. The shape may be a shape (see FIG. 6B), a semi-elliptical shape (see FIG. 6C), or a semi-ellipse shape (see FIG. 6D). The “oval” in this specification is composed of two parallel straight lines and two circular arcs, and the circular arcs are connected to both ends of the two parallel straight lines so as to protrude outward. The “semi-ellipse” means a shape obtained by halving the ellipse by a straight line orthogonal to two parallel straight lines. The pouch shown in FIG. 6 (A) can be formed using the rhombus-shaped packaging material 20 shown in FIG. 7 (A), and the pouch shown in FIG. 7 (B) is shown in FIG. 7 (B). 7 can be formed using a substantially rhombus-shaped packaging material 20 having a curved corner, and the pouch shown in FIG. 7C has an elliptical packaging material 20 shown in FIG. 7C. The pouch shown in FIG. 6 (D) can be formed using the oval packaging material 20 shown in FIG. 7 (D). The packaging material 20 is not limited to FIG. 7 if it is a line symmetrical shape. 6A to 6D, members denoted by the same reference numerals as those in FIG. 1 are the same as the members illustrated in FIG.

  According to the present embodiment, since the upper portion 10B of the pouch 10 is provided with the knob portion 15, the pouch 10 is grasped by gripping the knob portion 15 and peeling the outer edge seal portion 13 in the direction in which the knob portions 15 are separated from each other. Can be opened. And when opening to the vicinity of the lower end portion 13C of the outer edge seal portion 13, as shown in FIG. 8, the packaging material 20 becomes a dish shape, so that the contents can be eaten without being transferred to the dish, Easy to take out the contents. In addition, since the contents can be eaten without being transferred to a dish, the pouch 10 is particularly suitable when the contents are eaten in a situation where a dish such as a go-out is not held.

  Further, when the point seal portion 14 is provided, the side surface of the packaging material 20 is erected by the point seal portion 14 and the knob portion 15, and therefore, after opening the pouch 10, there is a depth as shown in FIG. 8. It can be a dish shape.

DESCRIPTION OF SYMBOLS 10 ... Pouch 10A ... Bottom part 10B ... Upper part 10C ... Outer edge part 11 ... Front surface 12 ... Back surface 13 ... Outer edge part seal part 13A ... First seal part 13B ... Second seal part 13C ... Lower end part 14 ... Point seal part 15 ... Pinch part 20 ... Packaging material 21 ... Base material layer 22 ... Sealant layer

Claims (5)

A pouch formed of a single packaging material having at least a base material layer and a sealant layer, and having a front surface and a back surface,
The fold formed by half-folding the packaging material is the bottom,
An outer edge formed from the first end of the bottom in the lateral direction of the pouch to the second end of the bottom opposite to the first end along the outer edge of the pouch passing through the top of the pouch A seal part,
A knob provided on the upper part of the pouch, and
A pouch having a seal strength of 15 N or less at a width of 15 mm of the outer edge seal portion.   The outer edge seal portion is formed from the upper portion of the pouch to the first end portion of the bottom portion, and the first seal portion is formed from the upper portion of the pouch to the second end portion of the bottom portion. 2 seal portions, the first seal portion is inclined downward in the first direction, and the second seal portion is inclined downward in the second direction that is opposite to the first direction. The pouch according to claim 1.   The pouch according to claim 1 or 2, further comprising point seal portions respectively provided in the vicinity of both lower end portions of the outer edge seal portion.   The pouch according to any one of claims 1 to 3, wherein the knob is provided on each of the front surface side and the back surface side.   The pouch according to any one of claims 1 to 4, wherein the knob is configured by a seal portion.

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