CN209777145U - A new type of high barrier packaging bag - Google Patents

Abstract

The utility model discloses a novel high resistant separates wrapping bag, including two bag bodies, the outmost high density polyethylene film that is provided with of the bag body, the inlayer of high density polyethylene film bonds through the gluing agent has PVA coating high resistant separation film, the inlayer of PVA coating high resistant separation film is provided with PVDC resin film, and is provided with the cavity between PVDC resin film and the PVA coating high resistant separation film, PVDC resin film bonds through the gluing agent has low polymer ethylene film. The utility model provides a novel high separation wrapping bag is provided with the sealing strip through crimping heat-seal department all around at two bag bodys, can further sealed fixed by sealing strip to two bag bodys of crimping heat-seal department, and the wrapping bag receives pressure in the transportation and produces when deforming, can improve the stability that the bag body is sealed all around by sealing strip, and then has improved the sealed packing effect of wrapping bag.

Description

A new type of high barrier packaging bag

technical field

The utility model relates to the technical field of flexible packaging materials, in particular to a novel high-barrier packaging bag.

Background technique

Flexible packaging refers to packaging in which the shape of the container can change after filling or removing the contents. Various bags, boxes, sleeves, packages, etc. made of paper, aluminum foil, fiber, plastic film, and their composites are all flexible packaging, among which, high-barrier packaging bags are currently widely used for long-term food packaging, storage and transportation. A kind of flexible packaging.

After retrieval, the Chinese patent application number is: CN201721012967.7, which discloses a new type of high-barrier packaging bag, which is formed by heat-sealing two-sided composite film, and each composite film is only composed of an outer film and an inner film. The film and the inner film are bonded by an adhesive, the outer film is a silicon oxide-coated polyethylene terephthalate film, and the inner film is a polypropylene film. The above-mentioned patent exists The following disadvantages: it adopts a simple composite film, the composite film is only composed of an outer film and an inner film, the outer film is a silicon oxide coated polyethylene terephthalate film, and the inner film is a polyethylene terephthalate film. Acrylic film, this simple two-sided film setting, has poor barrier effect for long-term storage and transportation of food, and at the same time, it is easy to damage polyethylene terephthalate film and polypropylene film during transportation. Then it affects the storage and transportation of food, so it is necessary to design a new type of high barrier packaging bag to solve the above problems.

Utility model content

The purpose of the utility model is to solve the shortcomings in the prior art, and propose a novel high-barrier packaging bag.

In order to achieve the above object, the utility model adopts the following technical solutions:

A new type of high-barrier packaging bag, including two bags, the outermost layer of the bag is provided with a high-density polyethylene film, and the inner layer of the high-density polyethylene film is bonded with a PVA coating through an adhesive A high-barrier film, the inner layer of the PVA-coated high-barrier film is provided with a PVDC resin film, and a cavity is provided between the PVDC resin film and the PVA-coated high-barrier film, and the PVDC resin film is bonded by an adhesive There is low polyethylene film.

Preferably, the surroundings of the two bags are crimped and heat-sealed to each other.

Preferably, a storage cavity is provided between the two bags.

Preferably, printed pictures and characters are printed on the outer surfaces of the two bags.

Preferably, sealing lines are seamed around the two bags.

The beneficial effects of the utility model are:

1. A new type of high-barrier packaging bag proposed by this utility model. By setting the outermost layer of the bag body as a high-density polyethylene film layer, the high-density polyethylene has good hardness and tensile strength and can bear loads. Therefore, it is set in The outer surface of the bag body can effectively protect the bag body, thereby effectively protecting the food during packaging and transportation.

2. A new type of high-barrier packaging bag proposed by the utility model, by setting the innermost side of the bag body as a low polyethylene film layer, the low polyethylene is soft in texture and has good freshness retention, so it is set inside the bag body The surface allows efficient storage of food.

3. A new type of high-barrier packaging bag proposed by the utility model is provided with a PVA-coated high-barrier film and a PVDC resin film in the middle of the bag body. The PVA-coated high-barrier film is a PVA coated with nano inorganic substances. Printed and compounded after being clothed on polyethylene film, its oxygen barrier rate is less than 2cm3/(m2·24h·0.1MPa), effectively ensuring all the quality requirements of the packaged object for aseptic packaging, PVDC (polyvinylidene chloride Ethylene) has good low permeability, barrier and chemical resistance, PVDC is used in a variety of substrates such as PE, PP, PVC, polyamide (PA), polyethylene terephthalate (PET) etc., taking the biaxially oriented polypropylene film as an example, the oxygen permeability rate is reduced by 1000 times after coating, and the water permeability rate is reduced by 3 times. Barrier effect, so setting these two films in the middle of the bag body can effectively achieve a high barrier effect.

4. A new type of high-barrier packaging bag proposed by the utility model is provided with sealing lines at the crimping heat seals around the two bags, so that the two bags at the crimping heat seals can be sealed by the sealing lines. With further sealing and fixing, when the packaging bag is deformed under pressure during transportation, the sealing lines can improve the stability of the seal around the bag body, thereby improving the sealing and packaging effect of the packaging bag.

Description of drawings

Fig. 1 is a schematic diagram of the front view of a novel high-barrier packaging bag proposed by the utility model;

Fig. 2 is a schematic diagram of the bag body section structure of a novel high barrier packaging bag proposed by the utility model;

Fig. 3 is a schematic diagram of the sealing line structure of a new type of high-barrier packaging bag proposed by the utility model.

In the figure: 1 bag body, 2 printed graphics, 3 sealing lines, 4 storage cavity, 5 high-density polyethylene film, 6 PVA coated high barrier film, 7 cavity, 8 PVDC resin film, 9 low polyethylene film .

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.

Example 1

Referring to Figure 1-2, a new type of high-barrier packaging bag includes two bag bodies 1, the outermost layer of the bag body 1 is provided with a high-density polyethylene film 5, and the inner layer of the high-density polyethylene film 5 is passed through an adhesive. Bonded with a PVA coated high barrier film 6, the inner layer of the PVA coated high barrier film 6 is provided with a PVDC resin film 8, and a cavity 7 is provided between the PVDC resin film 8 and the PVA coated high barrier film 6, PVDC The resin film 8 is bonded with a low polyethylene film 9 by an adhesive.

In the utility model, the surroundings of the two bag bodies 1 are crimped and heat-sealed with each other;

A storage cavity 4 is provided between the two bags 1, and food can be placed in the storage cavity 4;

The outer surfaces of the two bags 1 are printed with printed pictures and characters 2 .

Example 2

Referring to Figures 1-3, a new type of high-barrier packaging bag also includes a sealing line 3 arranged around the two bag bodies 1, and the sealing line 3 is seamed with the crimping heat seal of the two bag bodies 1, which can be made by sealing Line 3 further seals and fixes the two bags 1 at the crimping heat seal. When the packaging bag is deformed under pressure during transportation, the sealing line 3 can improve the stability of the seal around the bag body 1, thereby improving Sealed packaging effect of the packaging bag.

Working principle: When in use, the user can put the food that needs to be stored and transported for a long time in the storage chamber 4 between the two bags 1, and then use the crimping heat sealing device to pump out the gas between the two bags 1 And carry out crimping and heat sealing treatment around it, seal and store the food, and then use a threading device to put a sealing line 3 on the crimping heat seal between the two bags 1, so as to improve the stability of the sealing of the two bags 1 Then, the outer surface of the bag body 1 can be sprayed and printed with graphic characters 2, and it can be transported and stored.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (5)

1. The utility model provides a novel high resistant separates wrapping bag, includes two bag bodies (1), its characterized in that, the outmost high density polyethylene film (5) that is provided with of bag body (1), the inlayer of high density polyethylene film (5) bonds through the gluing agent has PVA coating high resistant barrier film (6), the inlayer of PVA coating high resistant barrier film (6) is provided with PVDC resin film (8), and is provided with cavity (7) between PVDC resin film (8) and PVA coating high resistant barrier film (6), PVDC resin film (8) have low polyethylene film (9) through gluing agent bonding.

2. A novel high-barrier packaging bag as claimed in claim 1, wherein the peripheries of the two bag bodies (1) are pressed and heat-sealed with each other.

3. the new high barrier packaging bag according to claim 1, characterized in that a storage cavity (4) is arranged between the two bags (1).

4. A novel high-barrier packaging bag as claimed in claim 3, characterized in that the outer surfaces of the two bags (1) are printed with printed figures (2).

5. The novel high-barrier packaging bag is characterized in that sealing lines (3) are sewn on the periphery of the two bag bodies (1).