WO2009025379A1

WO2009025379A1 - Zipper pouch with a spout

Info

Publication number: WO2009025379A1
Application number: PCT/JP2008/065059
Authority: WO
Inventors: Souichi Kawakami; Kazuyuki Kurosawa; Hiroshi Sahara
Original assignee: Toyo Seikan Kaisha, Ltd.
Priority date: 2007-08-21
Filing date: 2008-08-18
Publication date: 2009-02-26
Also published as: CN101808908A; KR101216406B1; JP5125310B2; ATE543739T1; EP2192048A1; JP2009046156A; EP2192048A4; US20110116730A1; EP2192048B1; KR20100049633A; MY154260A

Abstract

Intended is to provide a pouch, which is constituted of a plurality of plastic sheets sealed at their peripheral edges, which includes a contents spout and a plastic zipper fused and arranged between the sheets at the sealed peripheral edges and which is heated and sterilized after it was charged with contents. The constitution of the pouch is characterized in that a blocking portion is formed by folding back a film-shaped base material at a portion in the pouch apart from the plastic zipper to the contents side, thereby to prevent such a drawback in advance that the contents might otherwise be caused by the influences of the heat or pressure to leave the blocking portion to the zipper portion, even if the blocking portion is wound during the plastic zipper manufacturing step or the step of mounting the zipper on the pouch, even for a retort sterilization or a heating or boiling sterilization after the pouch was filled with food or the like. Thus, it is possible to provide customers with the products stabilized in the quality management or the sanitary aspect.

Description

Specification

Zipper pouch with spout

The present invention relates to a bouch having a resealing function with food as contents, and more particularly, for example, after being stored in the bouch, such as enteral nutrients, liquid foods, etc. Bouches that are sterilized, especially plastic zippers on the inside of the bouch to facilitate removal, dilution, hydration, content administration tube cleaning, and resealing after removal. In addition, a zipper bar with a spout has a blocking part that is a weakened part by folding back the extension part of the plastic film that is the base material inside the zipper, that is, inside the contents, that is, the contents side. This makes it difficult for the zipper blocking part to be wrinkled in the manufacturing process, and the zipper blocking part does not become damaged during retort sterilization even after commercialization as a zippered bouch. By heat or pressure, or note on the outlet zipper Bauchi without the even rupture child by internal pressure due loading or the like during transport. Background art

[Patent Document 1] Japanese Patent Laid-Open No. 2 0 0 5-2 0 6 1 6 2

Patent Document 1 is an invention relating to a zipper bouch with a spout developed by the present applicant. As shown in FIG. 6, a plastic linear fastener (zipper) 2 is provided in the upper part of the bouch A. The opening and closing of the linear fastener 2 allows easy replenishment of moisture and the like. In the zipper 2 in the bouch described in Patent Document 1, a linear convex portion is formed on one surface of the film-like substrate 22, and a concave portion that fits the convex portion is formed on a surface facing the zipper 2. It is configured to be openable and closable by the fitting 21 between the convex part and the concave part, and the inside of the fitting part, that is, the part where the film-like substrate extending to the contents is folded is the weakening part. After the zipper part is disengaged, the blocking part 2 and 3 are those that can be broken.

By configuring in this way, enteral nutrients, liquid foods, or retnore foods stored in the bouch have a zipper fitting part in front of the planned opening of the bouch 15, and this zipper Since the film that is the zipper base material is extended inside the part and the blocking part 23 is formed in the folded part, the contents will be opened beyond the fitting part of the zipper even during retort 1 There is no leakage to 5. Therefore, the contents will not scatter or your fingers will not get dirty when opening the scheduled opening 15 during use.

Although there are various methods for producing the above-mentioned plastic zipper, it is usually melt-extruded in a state in which a convex portion and a concave portion (fitting portion of the zipper) fitted to the film-like base material made of polypropylene are formed, After being cooled with water and dried, it is taken up by a nip roll, then folded around the blocking part, and wound in a fitted state before being shipped as a product. Part (blocking part designated as weakened part) may come into contact with the guide rail of the manufacturing machine, etc., which may cause an invisible flaw on the weakened part or a pinhole formation. There is a risk of getting up. Disclosure of the invention

Problems to be solved by the invention

As can be seen in Patent Document 1, the shut-off part, which is the weakened part, in the retort bouch A with zipper, shuts off the contents, and the contents are formed on the surface of the zipper part 2 where the fitting convex part and concave part are formed. It prevents things from reaching. However, if the blocking part 23 is pinched or if there is a pinhole and the bouch is subjected to retort sterilization, the weakened part of the blocking part 23 may be broken or perforated. For this reason, the contents leak to the convex / concave forming surface for fitting the zipper part, and as a bouch for storing food, the contents are scattered and adhered at the time of opening, resulting in lack of convenience and leakage. However, the voucher found in the market cannot be provided to customers as a product, which increases the out rate. Therefore, an object of the present invention is to prevent the plastic zipper attached to the zipper bouch with the spout from being wrinkled even if the weakened portion constituting the blocking portion contacts the guide roll or the like during the manufacturing process. The purpose is to provide a zipper pouch with a spout that is reinforced and can withstand heat treatment during retort sterilization. Means for solving the problem

The present invention has been proposed to achieve the above object, and is characterized by having the following configuration.

That is, according to the present invention, it is composed of a plurality of plastic sheets whose peripheral edges are sealed, and includes a content outlet and a plastic zipper disposed in a fused state between the sealed peripheral sheets. A bouch that is heat sterilized after filling and sealing the contents,

In the plastic zipper, a linear convex portion is formed on one surface of the film-like base material, and a concave portion that fits the convex portion is formed on the surface of the film-like base material facing the zipper. A blocking portion is formed in a state where the film-like base material is folded back at a portion spaced from the recess to the content side, and the inside of the pouch is liquid-tightly blocked between the side where the content outlet is located and the other side. In addition, a zipper pouch with a spout is provided, wherein at least one film-like base material of the blocking portion is formed with a tongue piece extending from the blocking portion toward the contents.

In addition, according to the present invention, there is provided a zipper pouch with an above-mentioned self-injection port which is formed to have a breaking strength of 10 to 15 ON / 5 O mm.

Further, according to the present invention, there is provided the above-mentioned zipper bouch with a spout, wherein the bouch forms a content spout formed of a sputter that is a separate member from the plastic sheet at a peripheral edge of the bouch separated from the zipper. Is done.

Moreover, according to this invention, the said zipper bouch with a spout whose said bouch is a bottomed bouch is provided. The invention's effect

According to the invention described in claim 1 of the present application, in a zipper with a zipper having a content outlet, the end surface of the folded portion (blocking portion) of the film connected to the zipper disposed in the bouch is covered by the tongue piece. As a result, it is possible to avoid clogging of the end face of the blocking part during the manufacturing process of the zipper or the mounting process of the zipper to the bouch, and as a result, the pouch is filled with food and sealed. Later, even if it is subjected to processes such as retort sterilization and heat sterilization such as boiling, there is no problem that the contents leak from the blocking part due to the effect of heat and pressure, reaching a part of the zipper. Alternatively, a stable product in terms of hygiene can be provided to the customer. According to the invention described in claim 2 of the present application, the breaking strength of the blocking portion is formed to a width of 10 to 15 ON / 50 mm, so that the opening of the blocking portion performed following the opening of the zipper portion is human. It can be easily done by hand and does not require extra force to spill out the contents when opening.

Further, according to the invention described in claim 3 of the present application, a spout with a spout, which is a rigid member, may be used as the spout as shown in FIG. 1. In this case, a tube is connected to the spout and the contents are connected. It is suitable for liquid food use because it can be hydrated and resealed from a part of the zipper.

According to the invention described in claim 4 of the present application, the zipper bouch with a spout may be a bottomed bouch having an opening formed only at the top of the bouch, as shown in FIG. The range of use can be expanded. Brief Description of Drawings

FIG. 1 is a front view of an example of a zipper pouch with a spout according to the present invention.

FIG. 2 is a cross-sectional view of a zipper used in the zipper pouch with a spout according to the present invention. Fig. 3 is an exploded view of the zipper.

FIG. 4 is a perspective view of a bottomed bouch provided with a zipper. Fig. 5 is a front view of a pouch with a knob with a zipper.

FIG. 6 is a front view of the conventional liquid food pouch shown in Patent Document 1. Explanation of reference numerals in the drawings

1, A: Pouch, 1 1: Bouch periphery (seal), 1 2: Bouch contents,

1 4: Pick part, 1 5: Planned opening part, 1 6: Bottom part of bottomed bouch,

2: zipper, 2 1: zipper engaging part, 2 1 a: recess of zipper,

2 1 b: convex part of zipper, 2 2: film-like substrate of zipper,

2 2 a: Longitudinal end of the zipper, 2 3: Blocking part (weakening part),

2 4: Tongue piece, 2 5: Zipper fusion part, 2 6: Hanging hole

3: spout, 3 1: spout (content pouring tool)

4, 4,: Bouch body plastic sheet BEST MODE FOR CARRYING OUT THE INVENTION

The best mode for carrying out the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of a zipper bouch 1 with a spout according to the present invention, and the body of the punch 1 is a plurality of plastic sheets whose peripheral edges 1 1 are sealed (two sheets on the front and back in the bouch of FIG. 1). 4, 4 '). A spout 31 made of a rigid synthetic resin is fused to the lower periphery of the bouch to form a content outlet 3. In addition, a plastic zipper 2 (hereinafter sometimes simply referred to as a zipper) is disposed in the upper part of the bouch with its upper end and both ends in the zipper longitudinal direction fused to the bouch body. .

That is, the zipper bouch with a spout of the present invention is sealed in a state where the zipper film-like substrate 22 has a zipper longitudinal end portion 2 2 a sandwiched between the front and back sheets at the peripheral edges of the bouch. Further, the film-like base material 22 has a front and back notch body sheet on the opposite side to the surface on which the concave and convex portions are formed in the portion above the fitting portion 21 along the longitudinal direction of the zipper. one A zipper fusion part 25 is formed by being sealed on the inner surface of the belt. The upper edge of the bouch body is sealed, and the part below the seal part 11 and above the zipper fusion part 25 is the scheduled opening part 15.

FIG. 2 shows a cross-sectional view of the zipper 2 of the present invention.

The zipper 2 has a convex portion 2 1 b formed on one surface of the film-like substrate 2 2, and a concave portion 2 1 a that engages with the convex portion 2 1 b is formed on the other surface, and the zipper portion 2 1 a, 2 1 b is bent at the tip, and this part is the blocking part 2 3. The blocking part 23 is usually a weakened part by reducing the thickness so that it can be broken by hand following the opening of the zipper part. The breaking strength of the blocking part 2 3 does not cause breakage or pinholes while the bouch after filling the contents is sterilized by heating such as retort sterilization or boiling, and when the zipper is opened It must be thinned to the extent that it can be broken without applying excessive force following the manual opening operation, and it is 10 to 1 50 NZmm wide in terms of breaking strength. The thickness of the part is about 10 to 1 OO / Lt m.

The important structure in the present invention is that, as shown in FIG. 2, one film constituting the blocking part 23 is further extended from the folded part to form the convex part 21b and the concave part 21a. Tongue piece 24 is formed on the opposite side of this surface, so that the end face of blocking part 23 is retracted so that it is located on the inside. A situation in which the contact with the guide roll or the like makes a crack is avoided. Therefore, since the end face of the shut-off part 23 is sealed in the bouch without any wrinkles, the shut-off part 23 is not affected even if it is subjected to heat treatment such as retort sterilization after filling the contents in the bouch. No damage or pinholes can occur, and the product and the surface where the zipper's convex part 2 1 b and concave part 2 1 a are formed are completely separated. The

The extended state of the tongue piece 2 4 (indicated by H in FIG. 2) is not particularly limited as long as it can achieve the purpose of protecting the end face of the blocking portion not by the tip but by the tongue piece. However, according to the experiments by the present inventors, it should be at least 0.1 mm or more. From the viewpoint of the point and material cost, the thickness is most preferably 0.4 to 0.5 mm. In addition, the shape of the tongue 24 is most preferably a shape that covers the front surface in the longitudinal direction of the zipper of the blocking portion 23 in parallel, but the end surface of the blocking portion 23 contacts the guide roll or the like in the manufacturing process. If not, there is no problem in terms of performance even if the tongues 24 are partially missing. If the purpose is taken into account, a tongue piece 24 may exist at the right end along the blocking portion 23.

The portion extending inward of the bouch of the film-like base material 2 2 inside the zipper 2 is connected as a blocking portion 2 3, so that the content of the bouch is the zipper 2 of the film-like base material 2 2. Since it does not directly contact the surface of the planned opening of the bouch, the contents of the bouch that has become hot due to heat or pressure during retort sterilization will not contact the surface opposite to the contents of zipper 2. Therefore, the zipper 2 engaging portion 2 1 a, 2 1 b and the surrounding area are not attached to the bouch contents, and the opening scheduled portion 15 at the periphery of the bouch is opened, and the zipper 2 portion is Even if it comes into contact with the outside air, it is possible to prevent the contents from adhering to that part.

The plastic film that constitutes the bouch needs to be capable of being sealed by heating, and preferably has heat resistance. In addition, a single layer film can be used as the film material. Usually, however, the inner layer (heat seal layer) / intermediate layer (barrier layer) outer layer (in order to make the material have both heat seal and barrier properties) (Surface layer) or inner layer (heat seal layer) Z intermediate layer (base material layer) Intermediate layer (barrier layer) It is preferable to use a composite film consisting of Z outer layer (surface layer), especially the inner layer is polypropylene, intermediate layer It is particularly preferable to use a laminated film made of polyethylene and polyethylene terephthalate in which an outer layer is vapor-deposited with a thin film such as aluminum oxide or inorganic silicon as a barrier layer on the inner layer side. As the barrier layer, in addition to the vapor deposition layer, ethylene monobutyl alcohol copolymer resin (EVOH) or aluminum foil is used. In addition to polypropylene, polyethylene may be used as the inner layer, and as the outer layer, nylon or the like may be used in addition to polyethylene terephthalate.

In the outlet 3 of the zipper pouch 1 with the outlet according to the present invention, the content outlet 3 1 Either a so-called spur formed from a hard plastic having retort resistance, such as a polypropylene resin, or a per se known extraction tool described in Patent Document 1 described above can be used. This pouring tool is attached in the state of being fused between the inner layers of the plastic film at the peripheral part 11 of the plastic film constituting the body of the liquid food pouch. It must be able to be fused with the film inner layer to be constructed, but the tip of the tip may be tapered so that it can be easily inserted into the pipe. An uneven shape may be appropriately formed on the surface. In addition, the spout 3 of the zipper bouch with spout of the present invention is formed by attaching the content pourer (spout) 3 1 with a spout nozzle to the body of the bouch, so Although it is preferable that it is easy to carry out the work, it may have a configuration in which a bout body is formed in a nozzle shape and used as a spout without attaching a separate content pouring tool.

This zippered pouch with a spout is provided with a hole 26 for hanging the bouch in the seal part at the top of the bouch that is separated from the spout 3 and is hung on a hook at a hospital or the like for administration to a patient. It is suitable as a bouch for liquid food. At this time, the zipper part 2 can be used as a hydration port after administration of the contents, and the zipper with the tongue piece extended so as to protect the blocking part of the present invention is excellent in hygiene and sealing, and is suitably used. Can be used.

In addition, the seal at the periphery of the bouch is preferably a heel seal, but an ultrasonic seal may be used. What is important in the present invention is to extend a tongue piece for protecting the end face of the zipper shut-off portion, and the shape of the bouch is not particularly limited as long as it is a zipper bouch with a spout.

When rehydrating, diluting, or taking out the contents from the zipper part, open the planned opening part 15 above the bouch by means of cutting, etc., and remove the zipper placed in the fitted state below it. Since the weakened part of the blocking part 2 3 is broken following the zipper disengagement, the contents can be taken out after that.

The unscheduled opening part 15 is a state in which the zipper part 2 can be opened by cutting or opening the part. If a cutting tool such as scissors is used for opening, it may be indicated by a method such as printing a line on the part, and the laser — The weakening line may be formed by processing or the like.

Further, the zipper pouch with a spout of the present invention may be a bottomed one as shown in FIG. The bottomed bouch may be sealed at the periphery so that it has a bottomed shape with a film constituting the bottom 16 interposed between two films constituting the front and back.

With a bottom, it becomes possible for the bouch to stand on its own. For example, if it is a liquid food bouch, it can be stably placed on a paddle or the like during transportation or movement, and when forming an opening during water addition, Injecting water from a hose or pot into a water bottle can be performed stably and reliably.

Further, in the bouch of the present invention, as shown in FIG. 5, in order to make it easier for the user to hold the bouch, for example, a knob portion 14 can be formed on at least one side of the upper end portion. At this time, since the opening portion 15 of the pouch is formed in the knob portion 14, even after opening the pouch, the user puts his finger on the knob portion 1 4 a and the bouch slides. Subsequent operations can be performed while gripping the opening in a difficult and easy-to-hold state. Industrial applicability

The zipper bouch with spout of the present invention is such that the end face of the blocking portion formed of the film-like base material constituting the plastic zipper attached in the bouch in a fused state is not located outside the tip of the tongue piece. Because it is covered with a tongue piece, the end face of the blocking part is not scratched during the zipper manufacturing process, and the contents are filled into a pouch provided with this zipper in the pouch for retort sterilization or transportation. Even if it is loaded inside, the heat and pressure will not damage the blocking part or form pinholes, completely preventing deterioration and decay of the contents of the bouch and providing a highly reliable product. It can be provided to customers and has great industrial applicability in terms of stable quality.

Claims

0 WO 2009/025379 PCT / JP2008 / 065059 Claims

(1) Consists of a plurality of plastic sheets whose peripheral edges are sealed.

A pouch having a plastic zipper disposed in a fused state between the peripheral sheets, and being heat sterilized after filling and sealing the contents,

The plastic zipper has a linear convex portion formed on one surface of the film-like substrate, and a concave portion that fits the convex portion is formed on the surface of the film-like substrate facing the plastic zipper. A blocking portion is formed in a state where the film-like base material is folded back at a portion separated from the portion and the concave portion toward the content side, and the inside of the bouch is liquid-tightly blocked between the side where the content spout is located and the other side. A zipper pouch with a spout, wherein a tongue piece extending from the blocking portion toward the contents is formed on at least one film-like substrate of the blocking portion.

(2) The zipper bouch with a spout according to claim 1, wherein the breaking strength of the blocking portion is formed to a width of 10 to 1550 NZ 50 mm.

(3) The zipper with a spout according to claim 1 or 2, wherein the bouch is formed with a content spout made of a spout trough, which is a separate member from the plastic sheet, at a peripheral edge of the bouch separated from the zipper. Bouch.

(4) The zipper pouch with a spout according to any one of claims 1 to 3, wherein the pouch is a bottomed pouch.