CN213082595U

CN213082595U - Composite film for packaging

Info

Publication number: CN213082595U
Application number: CN202021115233.3U
Authority: CN
Inventors: 高香龙
Original assignee: Suzhou Xuxiong Packaging Material Co ltd
Current assignee: Suzhou Xuxiong Packaging Material Co ltd
Priority date: 2020-06-17
Filing date: 2020-06-17
Publication date: 2021-04-30
Anticipated expiration: 2030-06-17

Abstract

The utility model discloses a complex film is used to packing, including the complex film body, the complex film body includes bottom, intermediate level and top layer, the top and the intermediate level fixed connection of bottom, the top and the top layer fixed connection in intermediate level, the bottom is including moisture absorption oxygen layer and heat-seal layer, the top and the heat-seal layer fixed connection on moisture absorption oxygen layer, moisture absorption oxygen layer is made by the functional film of moisture absorption oxygen function, the heat-seal layer is formed by two kinds or three kinds of mixing among low density polyethylene, linear low density polyethylene and the modified metallocene linear low density polyethylene. The utility model discloses a complex film body, bottom, intermediate level and top layer's cooperation is used, has realized possessing the purpose of moisture absorption oxygen uptake function, has improved the practicality and the usability of complex film, can carry out better saving to packing article, has strengthened user's use and has experienced to can be better satisfy the market demand.

Description

Composite film for packaging

Technical Field

The utility model relates to a packaging material technical field specifically is a complex film is used to packing.

Background

The utility model relates to a complex film for packing, at present, the complex film on the existing market does not have the moisture absorption oxygen uptake function, can only prevent the air from getting into passively, and then influences the guarantee period of packing article, and it includes main packaging materials such as metal, plastics, glass, pottery, paper, bamboo, wild mushroom class, natural fiber, chemical fiber, combined material promptly, includes auxiliary material such as strapping, decoration, printing material again.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a complex film is used to packing possesses the advantage of moisture absorption oxygen uptake function, has solved the complex film on the phenomenon market, does not possess moisture absorption oxygen uptake function, can only prevent the air admission passively, and then influences the problem of the guarantee period of packing article.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a complex film is used to packing, includes the complex film body, the complex film body includes bottom, intermediate level and top layer, the top and the intermediate level fixed connection of bottom, the top and the top layer fixed connection in intermediate level.

Preferably, the bottom layer comprises a moisture absorption and oxygen absorption layer and a heat sealing layer, the top of the moisture absorption and oxygen absorption layer is fixedly connected with the heat sealing layer, the moisture absorption and oxygen absorption layer is made of a functional film with a moisture absorption and oxygen absorption function, and the heat sealing layer is formed by mixing two or three of low-density polyethylene, linear low-density polyethylene and modified metallocene linear low-density polyethylene.

Preferably, the intermediate level includes stretch-proof layer, dampproof course and enhancement layer, stretch-proof layer's bottom and dampproof course fixed connection, the bottom and the enhancement layer fixed connection of dampproof course, stretch-proof layer is made by the biaxial stretching polypropylene, the dampproof course is made by polyurethane gluing, the enhancement layer adopts the aluminum foil material to make.

Preferably, the top layer includes waterproof layer, barrier layer and ageing-resistant layer, the bottom and the barrier layer fixed connection of waterproof layer, the bottom and the ageing-resistant layer fixed connection of barrier layer.

Preferably, the waterproof layer is made of polyvinyl chloride materials, the barrier layer is made of aluminized polyester, and the anti-aging layer is formed by compounding polypropylene and polyamide.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a complex film body, bottom, intermediate level and top layer's cooperation is used, has realized possessing the purpose of moisture absorption oxygen uptake function, has improved the practicality and the usability of complex film, can carry out better saving to packing article, has strengthened user's use and has experienced to can be better satisfy market demand, and then can be better satisfy user's user demand.

2. The utility model discloses a set up moisture absorption oxygen uptake layer, a moisture absorption oxygen uptake ability for strengthening the complex film body, better preserve article, through setting up the heat-seal layer, a heat-seal ability for strengthening the complex film body, through setting up tensile layer, a stretch-proofing ability for strengthening the complex film body, through setting up the dampproof course, a waterproof ability for strengthening the complex film body, through setting up the enhancement layer, a strength for strengthening the complex film body, the life of better extension complex film body, through setting up the waterproof layer, a waterproof ability for strengthening the complex film body, through setting up the barrier layer, an isolated ability for strengthening complex film body and external environment, through setting up ageing-resistant layer, an ageing-resistant ability for strengthening the complex film body, the life of better extension complex film body.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic cross-sectional view of the bottom layer of the present invention;

fig. 3 is a schematic cross-sectional view of the intermediate layer of the present invention;

fig. 4 is a schematic cross-sectional view of the top layer of the present invention.

In the figure: 1. a composite membrane body; 2. a bottom layer; 3. an intermediate layer; 4. a surface layer; 5. a moisture-absorbing and oxygen-absorbing layer; 6. a heat seal layer; 7. a stretch resistant layer; 8. a moisture barrier; 9. a reinforcing layer; 10. a waterproof layer; 11. a barrier layer; 12. an aging-resistant layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, a composite film for packaging, comprising a composite film body 1, the composite film body 1 comprises a bottom layer 2, a middle layer 3 and a surface layer 4, the bottom layer 2 comprises a moisture absorption and oxygen absorption layer 5 and a heat sealing layer 6, the top of the moisture absorption and oxygen absorption layer 5 is fixedly connected with the heat sealing layer 6, the moisture absorption and oxygen absorption layer 5 is made of a functional film with moisture absorption and oxygen absorption functions, the moisture absorption and oxygen absorption capability of the composite film body 1 is enhanced by arranging the moisture absorption and oxygen absorption layer 5, the article is better preserved, the heat sealing layer 6 is formed by mixing two or three of low density polyethylene, linear low density polyethylene and modified metallocene linear low density polyethylene, the heat sealing layer 6 is arranged for enhancing the heat sealing capability of the composite film body 1, the top of the bottom layer 2 is fixedly connected with the middle layer 3, the middle layer 3 comprises a stretch-proof layer 7, a moisture-proof layer 8 and, the bottom of stretch-proof layer 7 is fixedly connected with dampproof course 8, the bottom of dampproof course 8 is fixedly connected with enhancement layer 9, stretch-proof layer 7 is made by biaxial stretching polypropylene, through setting up stretch-proof layer 7, be used for strengthening the stretch-proof ability of complex film body 1, dampproof course 8 is made by polyurethane gluing, through setting up dampproof course 8, be used for strengthening the waterproof ability of complex film body 1, enhancement layer 9 adopts the aluminium foil material to make, through setting up enhancement layer 9, be used for strengthening the intensity of complex film body 1, the better life of extension complex film body 1, the top of intermediate level 3 is fixedly connected with top layer 4, top layer 4 includes waterproof layer 10, barrier layer 11 and ageing-resistant layer 12, the bottom of waterproof layer 10 is fixedly connected with barrier layer 11, the bottom of barrier layer 11 is fixedly connected with ageing-resistant layer 12, waterproof layer 10 adopts the polyvinyl chloride material to make, through setting up, a better preservation can be carried out to packing article, user's use experience has been strengthened, thereby can be better satisfy market demand, and then can be better satisfy user's user demand, through setting up barrier layer 11, be used for strengthening complex film body 1 and external environment's isolated ability, ageing-resistant layer 12 is formed by polypropylene and polyamide complex, through setting up ageing-resistant layer 12, be used for strengthening complex film body 1's ageing-resistant ability, better extension complex film body 1's life, through complex film body 1, bottom 2, intermediate level 3 and top layer 4's cooperation is used, the purpose that possesses the moisture absorption oxygen uptake function has been realized, the practicality and the usability of complex film have been improved, can carry out better saving to packing article, user's use experience has been strengthened, thereby can be better satisfy market demand, and then can be better satisfy user.

During the use, through moisture absorption oxygen uptake layer 5, be used for strengthening the moisture absorption oxygen uptake ability of complex film body 1, through heat-seal layer 6, be used for strengthening the heat-seal ability of complex film body 1, through stretch-proof layer 7, be used for strengthening the stretch-proof ability of complex film body 1, through dampproof course 8, be used for strengthening the waterproof ability of complex film body 1, through enhancement layer 9, be used for strengthening the intensity of complex film body 1, through waterproof layer 10, be used for strengthening the waterproof ability of complex film body 1, through barrier layer 11, be used for strengthening the isolated ability of complex film body 1 and external environment, through ageing-resistant layer 12, be used for strengthening the ageing-resistant ability of complex film body 1, thereby realized possessing the purpose of moisture absorption oxygen uptake function.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A composite film for packaging, comprising a composite film body (1), characterized in that: the composite membrane body (1) comprises a bottom layer (2), a middle layer (3) and a surface layer (4), the top of the bottom layer (2) is fixedly connected with the middle layer (3), the top of the middle layer (3) is fixedly connected with the surface layer (4), the bottom layer (2) comprises a moisture absorption oxygen absorption layer (5) and a heat sealing layer (6), the top of the moisture absorption oxygen absorption layer (5) is fixedly connected with the heat sealing layer (6), the moisture absorption oxygen absorption layer (5) is made of a functional thin film with a moisture absorption and oxygen absorption function, the middle layer (3) comprises a stretch-proof layer (7), a moisture-proof layer (8) and a reinforcing layer (9), the bottom of the stretch-proof layer (7) is fixedly connected with the moisture-proof layer (8), the bottom of the moisture-proof layer (8) is fixedly connected with the reinforcing layer (9), the stretch-proof layer (7) is made of biaxially oriented polypropylene, and the moisture-proof layer (8) is made of polyurethane adhesive, the enhancement layer (9) adopts the aluminium foil material to make, top layer (4) are including waterproof layer (10), barrier layer (11) and ageing-resistant layer (12), the bottom and barrier layer (11) fixed connection of waterproof layer (10), the bottom and the ageing-resistant layer (12) fixed connection of barrier layer (11), waterproof layer (10) adopt the polyvinyl chloride material to make, barrier layer (11) are made by aluminized polyester.