JP2006199329A - Storing bag - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a storing bag in which a pouring opening is held into a stably expanded shape, and pouring a content from the pouring opening can be smoothly performed. <P>SOLUTION: The storing bag is prepared by using a synthetic resin film, closing the peripheral sides by heat sealing, and forming the pouring opening 8 projecting obliquely upward on an upper end corner part. A tape 9 consisting of a shrinkable film is mounted by heat sealing at the middle part in the length direction of the pouring opening 8 in the direction intersecting at right angles to the length direction of the pouring opening 8, placed between sheets 6 and 7 forming the pouring opening 8. The shrinkable film being a main material is shrunk by heating the tape 9 to contract the widths of the sheets 6 and 7 forming the pouring opening 8, and the pouring opening 8 is formed into a shape expanded outside. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a storage bag for storing liquid or powdered contents such as detergents and seasonings, and more particularly to a storage bag having a spout for pouring out the contents.

As this type of conventional bag, for example, a bag having a spout having a shape protruding upward as disclosed in Patent Document 1 is known.
JP 2000-25797 A

  The bag disclosed in Patent Document 1 is not limited to a standing pouch with an open bottom, but is sealed on all sides, but the spout is considered to be in a flat state, and when the contents are poured out, The tip is cut off from the middle with a scissors or the like, and the bag is tilted to pour out the contents, but because the spout is flat, the front side sheet material and the back side sheet material that make up the bag There was a problem that the contents did not come out from the spout unless the bag was tightly squeezed.

  The object of the present invention is to solve such a problem, and to provide a storage bag in which the spout is held in a stable bulge shape and the contents can be smoothly poured out from the spout. There is to do.

  The storage bag according to claim 1 of the present invention is a storage bag in which a periphery is closed by heat sealing using a synthetic resin film, and a spout protruding upward is formed at the upper end. A tape made of a shrink film is interposed between the sheets forming the spout in a direction intersecting the length direction of the spout at the intermediate portion in the length direction, and is attached by heat sealing. The shrink film, which is a material, shrinks to reduce the width of the sheet forming the spout, and the spout is formed into a shape bulging outward.

  The storage bag according to claim 2 is a storage bag in which a spout is formed in a pipe shape whose periphery is closed by heat sealing using a synthetic resin film and protrudes upward at the upper end and expands outward. The tape made of a shrink film is interposed between sheets forming the spout in a direction intersecting the length direction of the spout at the middle portion in the length direction of the spout, and is attached by heat sealing. The shrinkage of the shrink film, which is the main material, by heating is made to stabilize the pipe shape swelled outside the spout.

  As described above, the storage bag of the present invention has a pipe shape in which the width of the sheet forming the spout is reduced by heating and shrinking the tape made of the shrink film interposed in the spout, and the spout is expanded outward. It can be molded in a stabilized state.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS.
In the figure, reference numeral 1 denotes a storage bag made of a synthetic resin film that stores a liquid such as a detergent, and has a standing pouch shape having a bottom portion 2 swelled at the lower end and a narrowed upper end. Is closed by heat sealing. 3 is a heat seal part.

  More specifically, the storage bag 1 is made up of a sheet 4 constituting the bottom part 2 and front and back side sheets 6 and 7 constituting a body part 5 above the bottom part 2. Is provided with unstretched polyethylene film layers 4a, 6a, and 7a on the outer side in order to join between the sheet 4 and the sheets 6 and 7 and between the sheet 6 and the sheet 7 by heat sealing at the periphery. The stretched nylon film layers 4b, 6b, and 7b are laminated and adhered, and the aluminum foils 4c, 6c, and 7c having gas or water vapor barrier properties are laminated and adhered to the outside, and the polyethylene terephthalate film layer 4d that is further stretched to the outside , 6d, and 7d are laminated to form sheets 4, 6, and 7.

  By the way, a spout 8 that protrudes obliquely upward is formed at one corner of the upper end of the trunk portion 5 of the storage bag 1. When the storage bag 1 is manufactured by heat sealing, the spout 8 is a sheet 6 in a direction in which the tape 9 made of a shrink film intersects the length direction of the spout 8 at the middle portion in the longitudinal direction of the spout 8. 7 is inserted in between. The tape 9 is formed by laminating and bonding unstretched polyethylene film layers 9b and 9c on both sides of the shrink film layer 9a. The unstretched polyethylene film layers 9b and 9c of the tape 9 are unstretched polyethylene of the sheets 6 and 7. The film layers 6a and 7a are bonded by heat sealing. In the state where the tape 9 is interposed between the sheets 6 and 7 at the spout 8 at the time of manufacturing the storage bag 1 and heat sealed, the spout 8 is in a flat state. By heating the existing tape 9, the shrink film layer 9a as the main material contracts to reduce the width of the sheets 6 and 7 forming the spout 8, and the spout 8 is formed into a shape bulging outward. it can.

  In the bag making state, the upper horizontal portion 10 of the storage bag 1 is open, and the contents are filled into the storage bag 1 from the opened upper horizontal portion 10, and finally the upper horizontal portion 10 is heated. Closed by a seal.

  As described above, the shrinkage of the shrink film layer 9a can be formed into a pipe shape in which the spout 8 is swollen outward, the spout 8 is held in a stable swollen shape, and the tip is cut with scissors or the like. The content can be smoothly poured out from the spout 8.

  As mentioned above, although embodiment shown in drawing was described, the structure of the sheet | seat 4,6,7 used as the material of the storage bag 1 is not limited to what was mentioned above. Examples of the material having gas or water vapor barrier properties include a rolled film such as the aluminum foils 4c, 6c, and 7c as described above, a vapor-deposited film in which aluminum, silica, alumina, or the like is vapor-deposited on a film, an ethylene / vinyl alcohol copolymer. It is also possible to use a film such as polyvinylidene chloride. Further, the form of the storage bag 1 is not limited to the standing pouch, and may be other forms such as a four-sided seal.

  The contents stored in the storage bag 1 include detergents used in the kitchen, liquid seasonings such as oil and soy sauce, and high viscosity such as milk, juice, shampoo, rinse, and treatment. However, it may be a powdered content such as a powder detergent.

  Further, in the embodiment shown in the drawing, the tape 9 having the shrink film layer 9a as the main material is heated and shrunk to form the spout 8 that has been flat until then into a pipe shape bulging outward. Before the tape 9 is heated and shrunk, the spout 8 is formed into a pipe shape that swells outward, and in this state, the tape 9 mainly composed of the shrink film layer 9a is heat shrunk so that the outside of the spout 8 It is possible to further stabilize the pipe shape swelled.

  Furthermore, in the embodiment shown in the drawings, the spout 8 that protrudes obliquely upward is formed at the corner of the upper end of the storage bag 1. For example, the spout is formed at the center in the width direction of the upper end of the storage bag 1. However, the position of the spout is not limited to the upper end corner of the storage bag 1.

It is a perspective view of the storage bag which shows the state before carrying out heat shrink of the tape of a spout in one embodiment of the present invention. It is XX expanded sectional drawing of FIG. It is a YY expanded sectional view of FIG. It is a perspective view of the storage bag which shows the state after carrying out the heat shrink of the tape of the same spout. It is ZZ expanded sectional drawing of FIG. It is a perspective view which shows the state which is pouring the contents from the storage bag.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Storage bag 2 Bottom part 3 Heat seal part 4 Sheet 4a Unstretched polyethylene film layer 4b Nylon film layer 4c Aluminum foil 4d Polyethylene terephthalate film layer 5 Trunk part 6,7 Sheet 6a, 7a Unstretched polyethylene film layer 6b, 7b Nylon film layer 6c, 7c Aluminum foil 6d, 7d Polyethylene terephthalate film layer 8 Outlet 9 Tape 9a Shrink film layer 9b, 9c Unstretched polyethylene film layer 10 Upper horizontal portion

Claims (2)

A storage bag in which the periphery is closed by heat sealing using a synthetic resin film, and a spout protruding upward is formed at the upper end, and a tape made of a shrink film is spouted in the middle portion in the longitudinal direction of the spout It is interposed between sheets that form spouts in a direction that intersects the length direction of the sheet, and is attached by heat sealing. By heating the tape, the shrink film as the main material shrinks to form spouts. A storage bag, wherein the width of the sheet to be reduced is reduced and the spout is formed into a shape bulging outward. A storage bag having a spout formed in a pipe shape whose periphery is closed by heat sealing using a synthetic resin film and protrudes upward at the upper end and bulges outward. A shrink film, which is a main material, is formed by a tape made of a shrink film interposed between sheets forming the spout in a direction crossing the length direction of the spout and mounted by heat sealing. A storage bag characterized by stabilizing a pipe shape swelled to the outside of a spout by shrinking a film.

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