JP2019026271A - Standing pouch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To propose an easy-to-use standing pouch having a wide opening, high opening retention, and a container can be used as a tableware after heating the contents. It is a thing. SOLUTION: This is a standing pouch 20 in which the sealant layers of a laminate 1 having a heat-sealable sealant layer are opposed to each other, the peripheral edge portion is heat-sealed, and the bottom surface portion 5 is formed to provide independence. It is a standing pouch characterized in that after the upper portion of the pouch is opened horizontally, the upper end portion 7 of the laminated body is folded back inward or outward to form an opening portion 8 which is held in an open state. [Selection diagram] Fig. 1

Description

  The present invention relates to a standing pouch, which is a packaging bag having a self-supporting property obtained by bag-making processing of a soft wrapping material, and particularly relates to a standing pouch having good openability and excellent contents taking-out property.

  Since the standing pouch as shown in Patent Document 1 is self-supporting as its name suggests, it is easy to display at the store front and has a good display effect, so it is widely applied to various contents. It is used. In particular, the field of toiletries such as shampoos and rinses is often used, and it is often used as containers for refilling, mainly containing liquid contents.

  When the contents are liquid, the pouring property becomes a problem when taking out the contents. Especially for liquids with relatively high viscosity such as rinsing, how to shorten the pouring time is an issue. ing.

  As a measure to shorten the pouring time for liquid contents, the issue is how to keep the opening area of the spout stably and wide, and various proposals have been made for this. These proposals did not help at all when the food was something that contained solids, such as food.

  In order to improve the removability of the contents containing solids, not only the opening of the container is wide, but also a function of holding the wide opening in an open state is required.

  On the other hand, when the food is stored in the standing pouch, there is a demand to place the container on the table as it is instead of transferring the contents to other tableware. In this case, not only the opening property of the container but also the handling and carrying properties of the container that can be handled without being burned are required, particularly when the contents are heated.

Japanese Utility Model Publication No. 60-90143

  The problem to be solved by the present invention is to propose an easy-to-use standing pouch having a wide opening, high opening retention, and the container can be used instead of tableware after the contents are heated. .

  As means for solving the above-mentioned problems, the invention according to claim 1 is such that the sealant layers of the laminate having heat-sealable sealant layers are opposed to each other, the peripheral portion is heat-sealed, and the bottom portion is formed. Standing pouch that is self-supporting and has an opening that is held open by folding the upper end of the laminate inward or outward after the top of the pouch is opened horizontally It is a standing pouch characterized by.

The standing pouch according to the present invention can hold the opening in a wide open state by folding back the upper end of the opened pouch.

  In the invention according to claim 2, the sealant layers of the two laminates each having a heat-sealable sealant layer are opposed to each other, and the sealant layer of the laminate having the sealant layer is folded between the sealant layers. The standing pouch according to claim 1, wherein the bottom surface portion is formed by inserting a bottom tape and heat-sealing the peripheral edge portion.

  According to a third aspect of the present invention, in the standing pouch according to the first or second aspect, the crease line for folding the upper end of the laminate is formed in the opening. is there.

  In the invention according to claim 4, the opening width at the opening position where the upper part of the pouch is horizontally opened is wider than the opening width of the opening at the folded position of the upper end of the laminate. It is a standing pouch of any one of Claims 1-3 characterized by the above-mentioned.

  The invention according to claim 5 is characterized in that the width of the left and right seal portions at the position where the upper end portion of the laminate is folded back is narrower than the other portions. The standing pouch according to item 1.

  The invention according to claim 6 is characterized in that a re-sealing fastener is attached under the opening position, and the opening is held open by folding back the fastener portion. It is a standing pouch of any one of Claims 1-5.

  The invention according to claim 7 is the standing pouch according to any one of claims 1 to 6, wherein the left and right seal portions under the opening are formed in a handle shape. .

  The invention described in claim 8 is provided with a mechanism for releasing water vapor when the internal pressure is increased by water vapor generated by heating in an unopened state or in an opened state. 8. The standing pouch according to any one of 7 above.

  In the standing pouch according to the present invention, after the upper part of the pouch is opened horizontally, the upper end part of the laminated body is folded back inward or outward to form an opening that is held open. It is excellent in nature and can be used as it is without having to move the contents to other dishes.

  When the crease line for turning up the upper end part of a laminated body is formed in the opening part like the invention of Claim 3, or the upper end part of a laminated body like the invention of Claim 4 If the opening width at the opening position where the upper part of the pouch is opened horizontally is wider than the opening width at the position where the pouch is folded back, or left and right at the position where the upper end of the laminate is folded back as in the invention according to claim 5 When the width of the seal portion is narrower than the other portions, the operation of folding back the upper end portion of the laminated body becomes easy. Further, when these are combined, the operation of folding back the upper end portion of the laminated body becomes even easier.

  When the reseal fastener is attached under the opening position as in the invention described in claim 6, not only can the fastener portion be easily folded, but the contents remain. In such a case, it is possible to reseal.

  When food is stored in a standing pouch, the bag is generally heated in a hot water bath or heated in a microwave oven before opening, but when handling food heated to a high temperature, claim 7 As in the invention described in the above, the left and right seal portions under the opening are formed in a handle shape, so that even when the contents are heated, it can be firmly held with both hands, Reduces the risk of burns and drops during transport.

  Further, as in the invention described in claim 8, in the case where a mechanism for releasing water vapor is provided when the internal pressure is increased by water vapor generated by heating in an unopened state or an opened state, Even if it is heated in a microwave oven, it can be used safely without danger of explosion.

FIG. 1 is a perspective view showing an embodiment of a standing pouch according to the present invention, and shows a state in which the upper end is folded back after opening. FIG. 2 is a schematic plan view showing an embodiment of a standing pouch according to the present invention, and is an example in which a crease line is provided in order to facilitate folding of the upper end portion. FIG. 3 is an explanatory cross-sectional view showing the structure of a standing pouch according to the present invention, and shows an example in which one laminate is bent and formed. FIG. 4 is a cross-sectional explanatory view showing the structure of the standing pouch according to the present invention, and shows an example using two laminates and a bottom tape. FIG. 5 is a schematic plan view showing another embodiment of the standing pouch according to the present invention, and shows an example in which the opening width at the folding position is narrowed. FIG. 6 is a schematic plan view showing another embodiment of the standing pouch according to the present invention, and shows an example in which the width of the side seal is narrowed at the folding position. FIG. 7 is a schematic plan view showing another embodiment of the standing pouch according to the present invention, and shows an example in which a fastener is provided in the opening. FIG. 8 is a schematic plan view showing another embodiment of the standing pouch according to the present invention, and shows an example in which the left and right seal portions are formed in a handle shape. FIG. 9 is a schematic plan view showing another embodiment of the standing pouch according to the present invention, and shows an example equipped with a mechanism for releasing water vapor when the internal pressure is increased by water vapor generated by heating. .

  Hereinafter, a standing pouch according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of a standing pouch 20 according to the present invention, and shows a state where the upper end portion 7 of the laminate is folded back and folded. The upper end portion 7 coincides with the opening position 6. In this example, the laminate is composed of a front laminate 2, a back laminate 3, and a bottom tape 4. The laminate is a laminate including a heat-sealable sealant layer, and this configuration will be described later.

As shown in FIG. 3, the standing pouch has a structure in which a single laminate 1 is bent to form a top laminate 2, a bottom portion 5, and a back laminate 3, and the peripheral portion is heat sealed. As shown in FIG. 4, the bottom part 5 may be formed by heat-sealing the peripheral part using two laminates of the front laminate 2 and the back laminate 3 and the bottom tape 4. good. The configuration as shown in FIG. 4 is most commonly used as a standing pouch.

  A standing pouch 20 according to the present invention has an opening 8 that is held in an open state by folding the upper end 7 of the laminated body inward or outward after the upper part of the pouch is horizontally opened. To do. In the example shown in FIG. 1, the opening 8 is formed by folding the upper end portion 7 of the front surface laminate 2 and the back surface laminate 3 after opening to the outside at the folding position 9. Therefore, in this example, the opening position 6 is the upper end portion 7 of the laminated body, and the folding position 9 is the opening portion 8.

  As shown in FIG. 1, the standing pouch according to the present invention is held in a state where the opening 8 is wide open by folding back the upper end of the laminated body. For this reason, even if the content is a food containing solids, it becomes easy to take out the content, and it is also possible to use it by placing it on a table as it is.

  The direction in which the upper end of the laminate is folded may be folded outward as in this example, or folded inward.

  FIG. 2 is a schematic plan view showing an embodiment of the standing pouch 20 according to the present invention, and is an example in which a crease line 10 is provided in order to make it easy to bend the upper end portion 7. The crease line 10 is an outer fold ruled line or an inner fold ruled line depending on the direction in which the upper end is folded. The crease line 10 can be formed in advance before forming the side seal portion 12 of the laminate.

  As a measure for facilitating the folding of the upper end portion 7 of the laminate, as shown in FIG. 5, the opening width at the opening position 6 is larger than the opening width at the folding position 9 as shown in FIG. It is also effective to make this wider. Moreover, as shown in FIG. 6, it becomes easy to return | fold also by making narrow the width | variety of the right-and-left seal part in the position 9 which returns the upper end part 7 of a laminated body rather than another part.

  The method for facilitating the folding of the upper end portion 7 of the laminate as described above can be carried out in combination, and by doing so, the folding operation can be performed more easily.

  In the embodiment shown in FIG. 7, a reseal fastener 14 is attached under the opening position 6. By attaching the fastener 14, not only can the contents be resealed when the contents remain, but also when the opening is folded back, the end portion of the fastener can be folded back easily. It becomes possible, and the opening is held in a wide open state.

  As the fastener, a known synthetic resin fastener having a linear protrusion and a linear groove fitted to the protrusion can be used.

  FIG. 8 is a schematic plan view showing another embodiment of the standing pouch 20 according to the present invention, and shows an example in which the left and right seal portions are formed in a handle shape. The handle 15 can be formed by partially projecting the left and right side seal portions 12. The size of the handle 15 is set to a size that can be pinched with a finger. A hole can be made in the central portion to facilitate picking. In this example, the fastener 14 is attached to the opening as in the embodiment shown in FIG.

FIG. 9 is a schematic plan view showing another embodiment of the standing pouch 20 according to the present invention, and shows an example equipped with a mechanism for releasing water vapor when the internal pressure is increased by water vapor generated by heating. is there. In this example, when the internal pressure is increased by providing the weak seal portion 16 having a narrow seal width and weak seal strength at the center portion of the top seal portion 11, the seal of the weak seal portion 16 is peeled off when the internal pressure increases. Is supposed to erupt.

  The mechanism for escaping water vapor is not limited to such a mechanism. For example, the seal portion may have any shape such as a method in which the internal pressure is concentrated when the pouch is expanded, or a method in which an adhesive seal portion is provided. A method can be selected.

  As a laminated body used for the standing pouch according to the present invention, a structure composed of a base material layer and a sealant layer is the most basic structure. An intermediate layer may be added between the base material layer and the sealant layer.

  As the base material layer, various synthetic resin films are generally used, and printing is generally performed on the surface. As the material of the base material layer, polypropylene resin (PP), polyethylene terephthalate resin (PET), polyamide resin such as nylon-6, nylon-66, polyvinyl chloride resin (PVC), polyvinylidene chloride resin (PVDC), A synthetic resin film such as polycarbonate resin (PC) can be used.

  As the sealant layer, a polyolefin-based resin is generally used, and specifically, a low density polyethylene resin (LDPE), a medium density polyethylene resin (MDPE), a linear low density polyethylene resin (LLDPE), ethylene-acetic acid. Ethylene resins such as vinyl copolymer (EVA), ethylene-α olefin copolymer, ethylene-methacrylic acid resin copolymer, blend resin of polyethylene and polybutene, homopolypropylene resin (PP), propylene-ethylene Polypropylene resins such as a random copolymer, a propylene-ethylene block copolymer, and a propylene-α olefin copolymer are used.

  As the intermediate layer, various synthetic resin films similar to those used for the base material layer can be used. As a method for laminating each layer, a dry laminating method using an adhesive or an extrusion laminating method in which a molten adhesive resin is extruded from a T die and laminated is used. Hereinafter, the standing pouch according to the present invention will be described more specifically based on examples.

<Example 1>
A PET film with a thickness of 12 μm is used as a base layer, a nylon film with a thickness of 15 μm is used as an intermediate layer, a CPP film with a thickness of 25 μm is used as a sealant layer, and a urethane adhesive is used for each of these layers. And then laminating to make a laminate. Using this laminate, a standing pouch as shown in FIG. 8 was prepared. This pouch was filled with soup, and the sensory evaluation was performed about the handling property of the pouch in the state which heated the whole.

<Example 2>
Using the same laminate as that used in Example 1, a standing pouch as shown in FIG. 2 was prepared. However, the left and right side seal portions were provided with handles similar to the standing pouch shown in FIG. This standing pouch was filled with soup in the same manner as in Example 1 and evaluated in the same manner.

<Comparative Example 1>
As a comparative example, a standing pouch having the same shape as in Example 2 was prepared. However, no means for facilitating the folding of the opening was applied, and the opening was not folded. About evaluation, it implemented similarly.

<Comparative example 2>
As Comparative Example 2, the shape of the standing pouch of Comparative Example 1 without the handle, that is, a very general ordinary standing pouch was similarly evaluated.

  The evaluation results are summarized in Table 1.

  As can be seen from the results shown in Table 1, the standing pouch according to the present invention has good openability and is easy to take out the contents. Further, it was found that when the left and right seal portions are formed in a handle shape, the contents are not spilled during transportation, and there is little risk of burns even when the contents are hot.

DESCRIPTION OF SYMBOLS 1 ... Laminated body 2 ... Front surface laminated body 3 ... Back surface laminated body 4 ... Bottom tape 5 ... Bottom surface part 6 ... Opening position 7 ... Upper end part 8 ... Opening part 9 ... folding position 10 ... crease line 11 ... top seal portion 12 ... side seal portion 13 ... bottom seal portion 14 ... fastener 15 ... grip 16 ... fragile seal portion 20 ... Standing Pouch

Claims (8)

  A standing pouch that has heat sealable sealant layers facing each other, heat seals the periphery and forms a bottom surface to provide self-supporting properties, and opens the top of the pouch horizontally. After that, the standing pouch is characterized in that an opening that is held in an open state is formed by folding the upper end of the laminated body inward or outward.   The sealant layers of the two laminates having a heat-sealable sealant layer are opposed to each other, and a bent bottom tape is inserted between the sealant layers of the laminate having the sealant layer on the outside to heat-seal the periphery. The standing pouch according to claim 1, wherein the bottom surface portion is formed.   The standing pouch according to claim 1 or 2, wherein a crease line is formed in the opening to fold back the upper end of the laminate.   The opening width at the opening position where the upper part of the pouch is horizontally opened is wider than the opening width of the opening at the folded position of the upper end of the laminate. The standing pouch according to item 1.   The standing pouch according to any one of claims 1 to 4, wherein the width of the left and right seal portions at a position where the upper end portion of the laminate is folded back is narrower than other portions.   The resealing fastener is attached below the opening position, and the opening is held in an open state by folding back the fastener portion. The standing pouch described.   The standing pouch according to any one of claims 1 to 6, wherein left and right seal portions under the opening are formed in a handle shape.   The standing pouch according to any one of claims 1 to 7, further comprising a mechanism for releasing water vapor when the internal pressure is increased by water vapor generated by heating in an unopened state or an opened state. .

Images