JP2018111520A - Liquid pouch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To propose a liquid pouch in which even a person with weak fingertip force can do easily assembling of an opening maintaining member in the liquid pouch including an assembling-type opening maintaining member at a pouring port.SOLUTION: Provided is a flexible liquid pouch which includes a pouring tube part 3 in which a pouring part is opened through cutting a tip end upon usage and is constituted by sealing the peripheral part of a front surface lamination body and a rear surface lamination body. Into the pouring passage 4 of the pouring tube part, inserted is a synthetic-resin-made assembling-type opening maintaining member 9 which is planar and has rigidity. Regarding the assembling-type opening maintaining member, at both sides or one side of a quadrangularly-shaped fixing plate 10, quadrangularly-shaped folding plates 11 are continuously installed through hinges 12, and the folding plate has a structure so as to stand against the fixing plate through folding with the hinge to maintain the shape. A pouring tube sealing part forming the pouring tube part forms an assembling-assisting part 13 which is extended outside and is for standing the folding plates.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a refill pouch for liquid detergents, shampoos, rinses, and the like, and a pouch for beverages such as juices, and in particular, to maintain an assembly-type opening at the spout for quick and easy dispensing of contents. The present invention relates to a liquid pouch provided with a member.

In recent years, refill containers have been widely used for various liquid contents from the standpoints of environmental conservation and resource saving. As this refill container, there is a flexible pouch with a spout part made of a synthetic resin film that is opened by cutting the tip of the spout part during use. In order to improve the ease of pouring the contents in the spout portion when refilling, the spout hole of the spout portion is hollow cylindrical or hollow as described in Patent Document 1, for example. Known are those formed into a semi-cylindrical shape, or those in which a semi-rigid or hard pipe is buried in the outlet hole of the outlet as described in Patent Document 2.
However, the conventional pouch with a spout part, which has improved the pourability of the contents described above, has a pouch body that is flat before filling the contents, but the spout part has a three-dimensional structure. In addition, the accumulation efficiency at the time of storage is poor, and troubles in the conveyance of the pouch in the filling machine are likely to occur when filling the contents. For this reason, a special conveying device or the like may be required.

  Therefore, as shown in Patent Document 3, the applicant solved the above-mentioned problem of the conventional pouch with a spout part, and the spout part is flat and has good accumulation efficiency during distribution and storage. Proposed a pouch with an opening maintaining member that has no trouble in transporting the pouch, and can reliably and reliably click with a single touch with a three-dimensional structure that makes it easy to pour out the pour hole at the spout when dispensing contents. .

  However, the pouch with an opening maintaining member described in Patent Document 3 requires a certain amount of force on the fingertip to assemble the opening maintaining member attached to the spout into a three-dimensional structure during use. Was found to have the problem that it may not assemble well.

JP-A-8-2538 JP-A-9-24956 Japanese Patent No. 3687355

  The problem to be solved by the present invention is to propose a liquid pouch that has an assembly-type opening maintaining member at the spout, and that can be easily assembled by a person with weak fingertip force. is there.

  As means for solving the above-mentioned problems, the invention according to claim 1 has a dispensing cylinder part that cuts the tip and opens a spout at the time of use, and seals the peripheral part of the front and back laminates. A flexible liquid pouch having a flat and rigid synthetic resin-made opening maintaining member inserted in a dispensing path of the dispensing cylinder portion. A quadrangular bent plate is connected to both sides or one side of the quadrangular fixed plate via a hinge, and the bent plate stands up with respect to the fixed plate by being bent via the hinge. A liquid pouch having a structure to maintain, wherein the seal portion forming the dispensing tube portion is extended outward to form an assembly auxiliary portion for raising the bent plate. is there.

  In the liquid pouch according to the present invention, since the seal portion that forms the spout portion into which the assembly-type opening maintaining member is inserted and the assembly auxiliary portion is formed, the assembly of the opening maintaining member can be facilitated. Became.

  The invention according to claim 2 is the liquid pouch according to claim 1, wherein the assembly assisting part is provided on both sides of the spout part.

  According to a third aspect of the present invention, in the liquid pouch according to the first or second aspect, a total area of the assembly auxiliary portion is larger than an area of the assembly-type opening maintaining member.

  The invention according to claim 4 is the invention according to any one of claims 1 to 3, characterized in that a total area of the assembly auxiliary portion is 6 times or less of an area of the assembly-type opening maintaining member. It is the liquid pouch described.

  The invention according to claim 5 is the invention according to any one of claims 1 to 3, characterized in that a total area of the assembly auxiliary portion is three times or less of an area of the assembly type opening maintaining member. It is the liquid pouch described.

  In the liquid pouch according to the present invention, an assembly-type opening maintaining member made of a synthetic resin having a flat plate shape and rigid is inserted into the pouring hole of the outlet portion, and the assembly-type opening maintaining member has a rectangular shape. A quadrangular bent plate is provided on both sides or one side of the fixed plate via a hinge, and the bent plate is bent via the hinge to stand up and maintain the shape of the fixed plate. Therefore, the pouch before the contents are filled is flat and has good loading efficiency. In addition, there is no problem in conveyance in the filling machine.

  At the stage of assembling the assembly-type opening maintaining member, the seal portion that forms the spout portion is an assembly assisting portion that extends outward and raises the bent plate, so that it is easy to grasp by hand and has a weak fingertip force. Even a person can easily assemble the opening maintaining member.

  As schematically shown in FIG. 4, by assembling the assembly-type opening maintaining member, the pouring cylinder portion is not blocked or bent, and the contents can be quickly poured out.

  When the assembly assisting portion is provided on both sides of the spout portion as in the invention described in claim 2, this portion can be grasped with both hands, so that the assembly of the opening maintaining member is further facilitated. Become.

  As in the invention described in claim 3, by making the total area of the assembly assisting part larger than the area of the assembly-type opening maintaining member, and further as in the invention described in claim 4, the assembly assisting part The total area is 6 times or less the area of the assembly-type opening maintaining member, or the total area of the assembly auxiliary portion is 3 times the area of the assembly-type opening maintaining member as in the invention according to claim 5. When it is less than double, the assembly of the opening maintaining member is further facilitated.

FIG. 1 is a schematic plan view showing an embodiment of a liquid pouch according to the present invention. FIG. 2 is an enlarged view of a dispensing cylinder portion of the liquid pouch shown in FIG. FIG. 3 is an explanatory diagram of the area (S1) of the assembly-type opening maintaining member and the areas (S2, S3) of the assembly auxiliary portion. FIG. 4 is a cross-sectional explanatory view of the dispensing tube portion of the liquid pouch according to the present invention, and shows a state where the assembly type opening maintaining member is assembled.

  Hereinafter, a liquid pouch according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic plan view showing an embodiment of a liquid pouch according to the present invention. FIG. 2 is an enlarged view of a dispensing cylinder portion of the liquid pouch shown in FIG. FIG. 4 is a cross-sectional explanatory view of the dispensing tube portion, showing a state where the assembly-type auxiliary member is assembled.

  A liquid pouch 1 according to the present invention has a main body 2 and a dispensing cylinder portion 3 that opens a spout 5 by cutting the tip at the time of use, and seals the peripheral portions of the front and back laminates 6 and 7. This is a flexible liquid pouch. An assembling-type opening maintaining member 9 made of synthetic resin and having a flat plate shape is inserted into the dispensing path 4 of the dispensing cylinder portion 3.

In the example shown in FIG. 1, in addition to the front surface laminate 6 and the back surface laminate 7, the bottom tape 8 that forms the bottom surface is inserted to form the bottom seal portion 18, the side seal portion 17, and the top seal portion 16. It has a standing pouch shape. Further, the dispensing cylinder part 3 is formed by a shoulder seal part 19, a dispensing cylinder seal part 20, and a dispensing outlet seal part 21. The dispensing cylinder portion 3 is provided with an opening start portion 14 for facilitating cutting of the tip and an opening assisting line 15 for smooth opening, and a spout 5 is formed after opening. As the opening assist line 15, a half-cut line by a blade or a laser is used.
In the assembly-type opening maintaining member 9, a quadrangular folding plate 11 is connected to both sides or one side of a quadrangular fixing plate 10 via a hinge 12, and the folding plate 11 is bent by the hinge 12. It has a structure that stands up with respect to the fixed plate 10 and maintains its shape. FIG. 4 is a cross-sectional explanatory view schematically showing a state where the assembly-type auxiliary member is assembled.

  In the assembly-type opening maintaining member 9, a mechanism for fixing the bent plate 11 in an upright state is not particularly limited and is arbitrary, but a click mechanism is provided so that it can be understood that the original position has been raised. Is desirable.

  As a layer structure of the laminate (front laminate 6, back laminate 7, bottom tape 8) used for the liquid pouch 1 according to the present invention, a synthetic resin film material generally used for a liquid pouch is used. Is possible. As the base material layer, a material having heat resistance and strength such as a polyethylene terephthalate (PET) resin film, various nylon films, and a polypropylene (PP) resin film is used.

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

An intermediate layer may be added between the base material layer and the sealant layer for the purpose of increasing the strength of the pouch, or a water vapor barrier layer or an oxygen barrier layer may be added for the purpose of improving the storage stability of the contents. As the intermediate layer, materials used for the base material layer can be used. As the barrier layer, a polyvinylidene chloride film, a polyvinyl alcohol film, an ethylene vinyl alcohol copolymer film, a gas barrier nylon film, a gas barrier polyethylene terephthalate (PET) film or other gas barrier film, a PET film or the like such as aluminum A metal vapor-deposited film, an inorganic oxide vapor-deposited film obtained by depositing an inorganic oxide such as aluminum oxide or silicon oxide on a PET film, a polyvinylidene chloride coating, a film containing a water-soluble resin and an inorganic layered compound, A gas barrier coating layer such as a resin layer made of a film obtained by reacting a metal alkoxide or a hydrolyzate thereof with an isocyanate compound, or a metal foil such as an aluminum foil can be used.
In the liquid pouch 1 according to the present invention, the pour cylinder seal portion 20 that forms the pour tube portion 3 is extended to the outside to form the assembly auxiliary portion 13 for raising the bent plate 11. It is characterized by. The presence of the assembly assisting portion 13 facilitates the operation of raising the folding plate 11 of the assembly-type opening maintaining member 9, and even a person with weak fingertip force can easily assemble.

  The assembly assisting portion 13 has a triangular shape in the example illustrated in FIG. 1, but there is no particular limitation on the shape. Presence of the assembly assisting part 13 facilitates the operation when folding and assembling the folding plate 11 of the assembly-type opening maintaining member 9 prior to the contents being poured out.

  In the example shown in FIG. 1, the assembly assisting portion 13 is provided on both sides of the dispensing cylinder portion 3. For example, the assembly-type opening maintaining member is composed of one fixed plate and one folding plate. In such a case, only one side where the folding plate exists may be used.

  FIG. 3 is an explanatory diagram of the area (S1) of the assembly-type opening maintaining member 9 and the areas (S2, S3) of the assembly auxiliary portion 13. A range indicated by a dotted line in the figure is a range to be measured as an area. According to experiments, it has been found that the total area of the assembly assisting portion 13, that is, S2 + S3, is preferably larger than the area S1 of the assembly-type opening maintaining member 9.

  As a result of further examination on the relationship between the total area S2 + S3 of the assembly assisting portion 13 and the area S1 of the assembly-type opening maintaining member 9, it was found that the total area S2 + S3 of the assembly assisting portion 13 may not be too large. If the total area S2 + S3 of the assembly assisting portion 13 exceeds 6 times the area S1 of the assembly-type opening maintaining member 9, the workability is rather lowered.

  The most preferable ratio range of the total area S2 + S3 of the assembly assisting part 13 and the area S1 of the assemblyable opening maintaining member 9 is such that the total area S2 + S3 of the assembly assisting part 13 is one time or more than the area S1 of the assemblyable opening maintaining member 9 3 times or less.

  The above knowledge is to create a sample of pouch with the area of the auxiliary part changed step by step, and ask 30 panelists to actually open and assemble the assembly-type opening maintenance member. Based on the results of a survey of how many people felt easy to assemble. The results are summarized in Table 1. The shape of the pouch is the shape shown in FIG. Further, the area of the auxiliary portion indicates how many times the area S1 of the assembly-type opening maintaining member.

  From the results in Table 1, it was found that the area of the auxiliary portion is preferably 1 to 6 times the area S1 of the assembly-type opening maintaining member. Moreover, it turned out that about 3 times is the easiest to assemble.

DESCRIPTION OF SYMBOLS 1 ... Liquid pouch 2 ... Main body 3 ... Outflow cylinder part 4 ... Outlet channel 5 ... Outlet 6 ... Front surface laminated body 7 ... Back surface laminated body 8 ... Bottom tape 9 ... assembly-type opening maintaining member S1 ... area 10 of assembly-type opening maintaining member ... fixed plate 11 ... bending plate 12 ... hinge 13 ... assembly auxiliary part S2, S3 ..Area 14 of assembly auxiliary part ... Opening start part 15 ... Opening auxiliary line 16 ... Top seal part 17 ... Side seal part 18 ... Bottom seal part 19 ... Shoulder seal part 20 ... Pouring cylinder seal 21 ... Pouring seal

Claims (5)

A flexible liquid pouch having a dispensing cylinder portion that cuts the tip at the time of use and opens a spout, and seals the peripheral portions of the front and back laminates,
An assembly type opening maintaining member made of synthetic resin having a flat plate shape and rigidity is inserted in the dispensing path of the dispensing cylinder portion,
The assembling-type opening maintaining member has a quadrangular folding plate connected to both sides or one side of a quadrangular fixing plate via a hinge, and the folding plate is bent with respect to the fixing plate through the hinge. It has a structure that stands up and maintains its shape,
A pouch for liquid, wherein a pour cylinder seal part forming the pour pipe part is extended outward to form an assembly auxiliary part for raising the bent plate.   2. The liquid pouch according to claim 1, wherein the assembly assisting portion is provided on both sides of the dispensing cylinder portion.   3. The liquid pouch according to claim 1, wherein a total area of the assembly auxiliary portion is larger than an area of the assembly-type opening maintaining member.   The liquid pouch according to any one of claims 1 to 3, wherein a total area of the assembly auxiliary portion is six times or less of an area of the assembly-type opening maintaining member.   The liquid pouch according to any one of claims 1 to 3, wherein a total area of the assembly auxiliary portion is three times or less of an area of the assembly-type opening maintaining member.

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