JPH0826302A - Packaging bag with pouring part and sealed package made of the packaging bag - Google Patents

Abstract

PURPOSE:To obtain a packaging bag that can be opened in a simple manner, eliminates a labor of holding a bag body when a content is taken out, prevents the content from being forced out and resulting in contamination thereabouts at the time of opening, and can be produced at a low cost and to obtain a sealed package made of the packaging bag. CONSTITUTION:In a packaging bag comprising a bag body 1 for containing a content, an open part 2 formed on one side of the bag body 1, and a tuck-an part 4 formed by tucking inward at least one of the sides of the bag body 1 other than the open part 2, a pouring part made of a fold-back part 6 formed by folding back one end of the tuck-in part 4 outward of the bag body 1 is provided on the end of the tuck-in part 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging bag for packaging liquids, powders, etc., and a hermetically sealed package having contents packed in the packaging bag, and is particularly used for refill products. Provided is a packaging bag and a hermetically sealed package formed by the packaging bag.

[0002]

2. Description of the Related Art Conventionally, in this type of packaging bag, a refill product is contained and sold from the viewpoint of waste disposal problems and resource saving. Products such as these refill products are generally packaged in four-side sealed bags made of plastic film, stand bags, or the like.

For example, in a conventional packaging bag, in order to enhance the self-supporting property of the packaging bag for containing the contents such as liquid and powder, a folding portion is formed by folding the side portion of the packaging bag into the inside thereof. There is a side seal part formed by linearly sealing the four corners corresponding to the folded edge part.

In these packaging bags, in order to provide a spout for transferring the contents in the packaging bag to a container such as a bottle, the sealing shape of the closing mouth is processed into a shape suitable for pouring, Alternatively, there is one in which a separately manufactured spout made of an injection molded body is attached.

[0005]

However, in the above-mentioned conventional packaging bag, the sealing shape of the closing mouth is a shape suitable for pouring out, because of the shape of the closing mouth,
For the surface area of the packaging bag, the capacity that can store the contents becomes small, and the pressure of the hands holding the packaging bag when pouring out the contents and the weight of the contents itself causes the contents to be opened when the packaging bag is opened. Had a drawback that it was prone to spillage and could easily contaminate the surrounding area.

Further, the injection-molded body provided with a separately-made spout eliminates the drawback of the packaging bag having a shape suitable for pouring the sealing shape of the closing port, but the separately-made spout is provided. An injection molding process is required for forming, and there is a drawback that the production cost increases.

[0007] Therefore, an object of the present invention is to solve the above-mentioned various drawbacks, the opening is easy, the labor for holding the bag body at the time of taking out the contents is not required, and the contents are packed in the packaging bag. An object of the present invention is to provide a packaging bag that can be manufactured at a low cost without protruding from the inside and contaminating the surroundings, and a sealed packaging body using the packaging bag.

[0008]

According to the present invention, a bag for accommodating contents, an opening formed on one side of the bag, and an opening other than the opening of the bag are provided. In a packaging bag having at least one side part folded inwardly, at one end side of the folded part, a pour-out part formed by a folded part formed by folding the one end side outward of the bag body is formed. It is composed of a packaging bag with a spout part, which is characterized in that

Further, the present invention has a bag body for accommodating the contents, and a folding portion in which at least one side portion of the bag body is folded inside thereof, and the contents are internally filled therein. In the hermetically sealed package, a pour-out portion including a folded-back portion formed by folding the one end side toward the outside of the bag body is formed at one end side of the folding portion, and the hermetically sealed package with a pour-out portion is formed. It consists of a body.

In the packaging bag with a pouring portion and the hermetically sealed package of the packaging bag according to the present invention having these configurations, the folding portion has an inclined portion of 10 ° to 60 ° with respect to the folding portion. Is preferred.

Further, in the packaging bag with the spout part of the present invention and the hermetically sealed package formed by the packaging bag, it is easy to open the spout part by providing a notch at one end of the folded-back part which is the spout part. Can be done

Further, in the packaging bag with a pouring part and the hermetically sealed package of the present invention of the present invention, the side portion of the bag body is folded inside to form a folded portion, and the four corners corresponding to the folded edges are linear. By forming the side-sealed portion that is sealed in a shape, it is possible to obtain a packaging bag with a pour-out portion that has high self-sustainability, and a hermetically-sealed package formed by the packaging bag.

Further, in the packaging bag with the dispensing portion and the hermetically sealed package of the packaging bag of the present invention, the dispensing portion including the folded portion in which one end side of the folded portion is folded back to the outside of the bag body,
By forming left and right in the same direction in the upper and lower directions of the bag body, one of the folded portions is used as the original pouring portion, and the other folded portion is the liquid which is the content from the sealed package body. It is possible to form an air vent hole at the time of pouring.

Furthermore, in the packaging bag with a spout part of the present invention and the hermetically sealed packaged body using the packaging bag, the bottom portion of the bag body can be formed into a ship bottom shape by sealing the corners of the bottom portion with diagonal lines. it can.

Further, in the packaging bag with the spout part of the present invention and the hermetically sealed packaged body using the packaging bag, the packaging bag is extended from the folded edge portion by adopting a bag-making method in which a plurality of plastic films are connected by a seal. A packaging bag having a handle portion to be installed, and a hermetically sealed packaged body can be formed.

[0016]

The packaging bag with a spout according to the present invention has an opening formed on one side of the bag and a fold in which at least one side other than the opening of the bag is folded inside. In a packaging bag having a part, on one end side of the folding part, a configuration is provided in which a pour-out part is formed that is formed by folding the one end side toward the outside of the bag body.
It is designed to be used as a spout for pouring out the contents.

In the hermetically sealed package obtained by using the packaging bag with a pouring part according to the present invention having such a structure, the tip end side of the folded-back part is broken by using the notch, or a blade or the like is used. By cutting off, the folded-back portion can be used as a spout.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, specific examples of the packaging bag with a pour-out portion and the hermetically sealed packaged body of the packaging bag of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 is a gusset bag which is a bag for containing contents such as liquid, and the gusset bag 1 is formed with an opening 2 at the upper end side for pouring the contents. Has been done.

The four corners of the gusset bag 1 in the vertical direction are formed into four side seal portions 3, 3 ... Which are linearly sealed in order to enhance the self-supporting property. Folding portions 4 and 4 formed by folding the side portions of the bag body 1 inward are formed on the two side surfaces facing each other between the side seal portions 3 and 3 adjacent to each other.

The bottom portion 5 of the gusset bag 1 in the illustrated embodiment is provided between the bottom portion 5 and the side seal portions 3, 3 in order to secure the stability when the contents are filled in and self-standing. The corners are heat-welded and then cut diagonally, so that the bottom 5 has a ship-bottom shape.
It suffices that the bottom portion 5 be linearly sealed, and the corners between the bottom portion 5 and the side seal portions 3, 3, ... May be heat-welded.

Here, at least one end side of the folding parts 4 and 4 is a folding part 6 formed by folding the end part side to the outside of the gusset bag 1. And this folded-back portion 6
Serves as a spout used as a spout when the contents in the bag are taken out.

The folded-back portion 6 which is folded back to the outside of the gusset bag 1 preferably has an inclined portion of 10 ° to 60 ° with respect to the folded portion 4, and particularly, an angle of about 20 ° to 30 °. Preferably done.

The side seal portions 3 and 3 of the gusset bag 1 on the side opposite to the side having the folded-back portion 6 are provided with handle portions 8 and 8 (see FIG. 2) for easy handling. ing. When the gusset bag 1 is molded with a plurality of plastic films or the like, a part of the plastic film is made to extend and the extending parts are punched into a desired handle shape. It can be easily formed.

In addition, in the packaging bag with the pouring part of the present embodiment, the opening 2 for pouring the contents is formed at the upper end, but the opening for pouring the contents is on the bag body. The bottom portion 5 may be used as the opening portion 2 by opening the side opposite to the folded-back portion 6 serving as the pouring portion, that is, the bottom portion 5 in the downward direction.

Here, the material for forming the gusset bag may be a single layer film or a laminated film.

As the outer surface film of the laminated film,
Biaxially oriented polyethylene terephthalate with back printing,
It is preferable to use a film having a high tensile strength and a low tear propagation strength, such as a biaxially oriented polypropylene film or a biaxially oriented nylon film.

The inner sealant film on the inner side is preferably a non-stretched linear low density polyethylene film, a non-stretched high density polyethylene film, a non-stretched medium density polyethylene film, a non-stretched low density polyethylene film, a non-stretched polypropylene film or the like. .

If necessary, an aluminum foil, a polyvinylidene chloride coating film, an ethylene-vinyl alcohol copolymer film, a polyester film, a vapor deposition layer of an inorganic oxide such as silica, aluminum oxide or indium oxide is formed. A film having a gas-shielding property or a light-shielding property, such as the above vapor-deposited film, may be interposed in the intermediate layer.

The outer surface film, the intermediate film, the inner sealant film and the like can be adhered to each other by a dry laminating method, and the material of the gazette bag of the embodiment is back-printed from the front side. Biaxially stretched polyethylene terephthalate film (12μ) / Dry laminate layer with isocyanate adhesive / Polyvinylidene chloride biaxially stretched nylon film (15
μ) / Dry laminate layer with isocyanate adhesive / Unstretched linear low density polyethylene film (60μ)
Was used.

The sealed package 9 shown in FIG. 2 is formed by filling the gusset bag 1 with the liquid, which is the content, and then sealing the opening 2 to form the seal portion 2 '.

Here, the gusset bag 1 has a packaging material usage area of 775 cm ² and a capacity of 612 cc (in the case of a stand pack, the packaging material usage area is 518 cm ² and a capacity of 200.
cc).

The hermetically sealed package of the present invention using the gusset bag can disperse the pressure due to the hand or the own weight which holds the package at the time of taking out the contents from the package, and the folded back which is opened by utilizing the notch 7. By pouring out the contents with the portion 6 as the spout, there was no liquid leakage during opening, and the pouring out of the contents was easy.

[0034]

As is apparent from the above description, the packaging bag with a spout of the present invention and the hermetically sealed packaged body comprising the packaging bag,
In a packaging bag having a folded portion in which at least one side portion is folded inward, and in a hermetically sealed package made of the packaging bag, from a folded portion obtained by folding one end side of the folded portion outwardly of the bag body. Is formed, and the folded portion is used as a spout when pouring out the contents.

Therefore, by cutting off the tip end side of the folded portion in the hermetically sealed package, the spout for pouring out the contents can be formed, and moreover, the labor for holding the bag body at the time of pouring out the contents can be reduced. And the contents are not projected to contaminate the surroundings when the package is opened, and the manufacturing cost can be reduced.

[Brief description of drawings]

FIG. 1 is a front view of a packaging bag with a spout according to an embodiment of the present invention.

FIG. 2 is a perspective view of a hermetically sealed package with a packaging bag with a spout according to an embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Bag body 2 ... Opening part 3 ... Side seal part 4 ... Folding part 5 ... Bottom part 6 ... Folding part 7 ... Notch 8 ... Handle part

Claims (2)

[Claims] 1. A bag for accommodating contents, an opening formed in one side of the bag, and at least one side other than the opening of the bag inside the bag. In a packaging bag having a folded-in folded portion, at one end side of the folded portion, a pour-out portion formed by a folded-back portion obtained by folding the folded portion at the one end side outward of the bag body is formed. A characteristic packaging bag with a spout. 2. A hermetically sealed package body having a bag body for containing contents and a folding part formed by folding at least one side part of the bag body inside thereof, and containing the contents inside thereof. In the above, the hermetically sealed package with a spout part is characterized in that the spout part is formed at one end side of the folding part and is formed by folding back the folding part at the one end side to the outside of the bag body. body.