JP2019001528A - Pouch bag - Google Patents

Abstract

To provide an improved pouch bag so that the cut end part is not sharp when a liquid content is taken out by tearing the bag with a finger at a notch for opening.SOLUTION: The present invention relates to a pouch bag which is processed into a bag shape by overlapping two front and rear plastic films 2a, 2b and heat-sealing them, and in which a content can be taken out by unsealing the bag at one of notches 4, 4 provided at both side parts. The pouch bag is in the upper part of each of the notches 4, 4, provided with an opening assistance line 5 which is bent downward from an upper side seal part 3a toward a side part seal part 3b.SELECTED DRAWING: Figure 1

Description

  The present invention relates generally to pouch bags, and more particularly to an improved pouch bag so that the end of the cut is not pointed when the frozen liquid contents are removed by tearing and opening with a finger from the notch. About.

  As shown in FIG. 3 (A), the pouch bag 1 conventionally used is provided with two front and rear wall films 2a and 2b, and these four sides, that is, both sides, upper side, and lower side are sealed. The portion hatched diagonally is the seal portion 3. The two front and rear plastic films 2a and 2b are formed of, for example, PET (polyethylene terephthalate) / PE (polyethylene) / AL (aluminum foil) / NY (nylon) / LL (linear low density polyethylene film).

  On both sides of the pouch bag 1, notches 4 and 4 are provided to provide a trigger for opening. An opening assist line 5 is provided so as to connect the notches 4 and 4 on both sides. The opening assisting line 5 is directly engraved on the workpiece by altering, melting or evaporating a part of the surface by laser irradiation. A content 6 such as a beverage is sealed in a container formed surrounded by the film 2a on one side and the film 2b on the other side. When the contents 6 are taken out, as shown in FIG. 3 (B), it is opened by tearing along the opening assisting line 5 from one notch 4 with a finger 7. However, when the contents 6 are frozen, they are not cut by being guided by the opening assisting line 5, and when the contents 6 are cut with one finger 7 from one notch with reference to FIG. It cuts along the surface of the frozen contents 6 as it is, extends and cuts as it is, and finishes cutting. As a result, there is a problem in that a sharp cut 8 is formed at the end of the cut, and the sharp cut 8 damages the finger 7.

  In connection with the present invention, as shown in FIG. 4, a chuck 9 is provided at the top, an opening assisting line 10 is provided along the inner edge of the bottom seal portion, and the contents are opened from the bottom side by cutting off the bottom side. A pouch container for taking out the solid food 11 is proposed (Patent Document 1). However, when the opening assisting line 10 is provided along the inner edge of the bottom seal part, when the contents are liquid and frozen, the contents freeze and expand when stored in a freezer, and tear at the opening assisting line 10 portion. However, there is a problem that such a pouch container is not suitable for freezing.

Japanese Patent Laying-Open No. 2017-65684 (see, for example, FIG. 10)

  The present invention has been made to solve the above-described problems. The liquid contents can be frozen, and when the frozen liquid contents are taken out from the notch and taken out by the finger, the end portion of the cut ends. An object of the present invention is to provide a pouch bag improved so as not to be sharp.

  The present invention is a pouch bag that is formed into a bag shape by overlapping two heat films on the front and back and heat-sealing, and is opened from one of the notches provided on both sides to take out the contents. An opening assist line that bends downward from the upper side seal portion toward the side seal portion is provided at the upper portion of each notch.

  Since the opening assist line bends downward from the upper side seal part to the side seal part at the upper part of each of the notches, even if the contents such as the beverage are frozen, the finger from one notch When the tear is opened, the upper side is cut off by being guided by an opening assist line that bends downward from the upper side seal portion toward the side seal portion at the other side portion that is the end portion of the cut.

  The opening assist line is preferably formed by a curved curve. When formed with a curved curve, the end of the cut end is rounded on the other side.

  The two plastic films are formed of a laminated film of a thermoplastic resin film / seal layer or a thermoplastic resin film / barrier layer / seal layer. The thermoplastic resin film is preferably formed of a laminated film. The thickness of the thermoplastic resin film is 12 to 25 μm. The thickness of the sealing layer is 40 to 70 μm.

  The pouch bag may be a standing pouch.

  According to the pouch bag of the present invention, the upper part of each of the notches is provided with an opening assisting line that bends downward from the upper side seal part toward the side seal part. Even if it is frozen, if it is torn off with one finger from one notch, the other side is guided by an opening assist line that bends downward from the upper seal part toward the side seal part, and is cut off on the other side. There is no sharp cut at the part.

(A) is a front view of the pouch bag which concerns on Example 1 of this invention, (B) is a figure explaining operation | movement of opening, (C) is a front view of the pouch bag after opening. It is a front view of the pouch bag which concerns on Example 2 of this invention. (A) is a front view of the pouch bag which concerns on a prior art example, (B) is a figure explaining operation | movement of opening, (C) is a front view of the pouch bag after opening. It is a front view of a pouch bag according to another conventional example.

  The purpose of obtaining an improved pouch bag so that the end of the cut end is not sharp when taking out the frozen contents by tearing with a finger from the notch is the side part from the top seal part to the upper part of each notch. This was realized by providing an opening assist line that bends downward toward the seal portion. Embodiments of the present invention will be described below with reference to the drawings. In the drawings, the same or corresponding parts are denoted by the same reference numerals, and description thereof will not be repeated.

  Referring to FIG. 1 (A), a pouch bag 1 according to a first embodiment of the present invention is formed into a bag shape by stacking two front and rear plastic films 2a and 2b and heat-sealing them. The pouch bag is opened from one of the notches 4 and 4 provided in the section to take out the contents. The portion hatched diagonally is the seal portion 3. The two front and rear plastic films 2a and 2b are formed of, for example, PET / PE / AL / NY / LL. An opening assist line 5 that bends downward from the upper side seal portion 3a toward the side seal portion 3b is provided at the upper portion of each of the notches 4 and 4. As shown in FIGS. 1 (B) and 1 (C), even if the contents 6 such as juice and beverage are frozen, if the fingers 7 are torn from one notch, Although it begins to cut along the surface, when it approaches the other side, it is guided by the opening assist line 5 and bent downward from the upper side seal portion 3a toward the side seal portion 3b. The opening assist line 5 is preferably formed by a curved curve. When formed with a curved curve, the cut end 12 is rounded on the other side.

  Symmetrical opening assist lines 5 that bend downward from the upper side seal portion 3a toward the side seal portion 3b are provided at the upper portions of the notches 4 and 4, respectively. Even if it cuts by cutting and push-cutting, the cutting end end portion 12 is rounded.

  In order to numerically confirm that a sharp cut was not made, the end of the cut was pressed against a rubber balloon having a diameter of 15 cm, and it was evaluated how many cm the balloon would break when it was submerged. Table 1 shows the results.

  In the first embodiment, the case where the opening assist line 5 is formed with a curved curve is illustrated, but the present invention is not limited to this, and as shown in FIG. Even if the opening assisting line 5 is formed of a combination of straight lines and straight lines that are bent downward toward the portion 3b, a considerable effect can be obtained. The angle between the straight lines is preferably selected to be an obtuse angle.

  It should be understood that the embodiments disclosed herein are illustrative and non-restrictive in every respect. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  The pouch bag according to the present invention can be used with peace of mind because, even when the content of a beverage or the like is frozen, a sharp cut is not possible at the end of the cut when opened.

DESCRIPTION OF SYMBOLS 1 Pouch bag 2a One wall surface film 2b The other wall surface film 3 Seal part 3a Upper side seal part 3b Side part seal part 4 Notch 5 Opening auxiliary line 6 Contents 7 Finger 8 Pointed cut 9 Chuck 10 Opening guide line 11 Solid food 12 End of cut

Claims (3)

In a pouch bag that is processed into a bag shape by overlapping and heat-sealing two plastic films on the front and back, and taking out the contents by opening from one of the notches provided on both sides,
A pouch bag, characterized in that an opening assist line that bends downward from an upper side seal portion toward a side seal portion is provided at an upper portion of each of the notches.   The pouch bag according to claim 1, wherein the opening assist line is formed by a curved curve.   The pouch bag according to claim 1 or 2, wherein the two plastic films are formed of a laminated film of a thermoplastic resin film / seal layer or a thermoplastic resin film / barrier layer / seal layer.