CN203401773U

CN203401773U - Easily removable film

Info

Publication number: CN203401773U
Application number: CN201320335252.0U
Authority: CN
Inventors: 邵峥; 桂阳
Original assignee: Ningbo Ruicheng Packing Material Co Ltd
Current assignee: Ningbo Ruicheng Packing Material Co Ltd
Priority date: 2013-06-08
Filing date: 2013-06-08
Publication date: 2014-01-22
Anticipated expiration: 2023-06-08

Abstract

The utility model discloses an easily removable film. The easily removable film comprises a surface layer, a middle layer and a heat seal layer, which are arranged from outside to inside in sequence, wherein an EVA (Ethylene Vinyl Acetate) thin film layer is adopted as the heat seal layer. The easily removable film in the technical scheme is of a three-layer structure; the EVA thin film layer is used as the heat seal layer, so that layering is unlikely to cause but the stripping is easy during heat sealing, meanwhile, the sealing property of the EVA thin film layer is strong and the preservation for foods is excellent.

Description

A kind of film of easily taking off

Technical field

The utility model relates to plastics packed technical field, relates in particular to a kind of film of easily taking off.

Background technology

Film employing polyethylene is easily taken off in existing packaging for foodstuff or polypropylene is heat-sealable material, poor easy generation layering and gas leak phenomenon during due to polyethylene and the heat-sealing of PP cup, and polypropylene and the heat-sealing of PP cup easily produce and shell not open phenomenon.Thereby greatly affect the quality of food and consumer's safe handling.

Utility model content

In view of this, the utility model provide a kind of be difficult for layering, sealing by force, easily peel off easily take off film.

Take off a film, comprise the top layer, middle level, the hot sealing layer that set gradually from outside to inside, described hot sealing layer is eva film layer.

Wherein, described middle level is EVOH thin layer.

Wherein, described top layer is PA thin layer.

Wherein, also comprise the adhesive layer being arranged between described middle level and hot sealing layer, described adhesive layer is adhesive layer.

Wherein, the thickness of described hot sealing layer is 6～18 μ m.

Wherein, the thickness in described middle level is 21～58 μ m.

Wherein, the described thickness of easily taking off film is 40～78 μ m.

The beneficial effects of the utility model are: a kind of film of easily taking off, comprise the top layer, middle level, the hot sealing layer that set gradually from outside to inside, and described hot sealing layer is eva film layer.The film of easily taking off of the technical program is three-decker, and adopting eva film layer is hot sealing layer, is difficult for layering and easily peels off during heat-sealing, and eva film layer sealing is strong simultaneously, good to the fresh-keeping property of food.

Accompanying drawing explanation

Fig. 1 is the structural representation of easily taking off film of the present utility model;

In figure:

1-top layer; 2-middle level; 3-adhesive layer; 4-hot sealing layer.

The specific embodiment

Below in conjunction with drawings and Examples, the utility model is described in further detail.Be understandable that, specific embodiment described herein is only for explaining the utility model, but not to restriction of the present utility model.It also should be noted that, for convenience of description, in accompanying drawing, only show the part relevant to the utility model but not entire infrastructure.

As shown in Figure 1, for Fig. 1 is the structural representation of easily taking off film of the present utility model.This is easily taken off film and comprises top layer 1, middle level 2, adhesive layer 3, the hot sealing layer 4 setting gradually from outside to inside.

This hot sealing layer 4 is eva film layer.EVA is ethylene-vinyl acetate copolymer, and general vinyl acetate (VA) content is 5%～40%.Compare with polyethylene, polypropylene material, EVA is owing to having introduced VAM in strand, thereby reduced high-crystallinity, improved pliability, impact resistance, heat sealability.Moreover EVA has stronger chemical stability, anti-aging, corrosion resistance.Thereby eva film layer, as hot sealing layer 4, can significantly improve the sealing of easily taking off film, makes food fresh keeping better.

This middle level 2 is EVOH thin layer.EVOH(ethylene/vinyl alcohol copolymer) be the maximum high barrier material of application always, EVOH distinguishing feature is that gas is had to fabulous barrier and fabulous processability, and the transparency, glossiness, mechanical strength, retractility, wearability, cold resistance and surface strength are all very excellent in addition.EVOH product not only can purposes film aspect production, can also apply in a large number cosmetics flexible package, ground heating pipes; the aspects such as jelly cup and pesticide bottle; EVOH, as a nontoxic ep-type material, not only can improve people's quality of life, also environmental protection is played an important role.

This top layer 1 is PA thin layer.PA is polyamide, claims again nylon.PA has good combination property, comprises mechanical property, heat resistance, mar proof, chemical proofing and self lubricity, and coefficient of friction is low, has certain anti-flammability, is easy to processing.PA thin layer, as top layer 1, can improve the folding resistance of easily taking off film, and commute is taken off film and played a very good protection.In addition, PA thin layer prints or surface printing in can doing.

In this example, the thickness of easily taking off film is 40～78 μ m, and the thickness of hot sealing layer 4 is 6～18 μ m, and the thickness in middle level 2 is 21～58 μ m.This each structure sheaf of easily taking off in film is thinner, has improved the overall aesthetics of packing, has greatly met the requirement of consumer to food package film thinning.

Note, described in conjunction with specific embodiments know-why of the present utility model above.These are described is in order to explain principle of the present utility model, and can not be interpreted as by any way the restriction to the utility model protection domain.Explanation based on herein, those skilled in the art does not need to pay performing creative labour can associate other specific embodiment of the present utility model, within these modes all will fall into protection domain of the present utility model.

Claims

1. easily take off a film, it is characterized in that, comprise the top layer (1), middle level (2), the hot sealing layer (4) that set gradually from outside to inside, described hot sealing layer (4) is eva film layer.

2. a kind of film of easily taking off according to claim 1, is characterized in that, described middle level (2) are EVOH thin layer.

3. a kind of film of easily taking off according to claim 1, is characterized in that, described top layer (1) is PA thin layer.

4. a kind of film of easily taking off according to claim 1, is characterized in that, also comprises the adhesive layer (3) being arranged between described middle level (2) and hot sealing layer (4), and described adhesive layer (3) is adhesive layer.

5. a kind of film of easily taking off according to claim 1, is characterized in that, the thickness of described hot sealing layer (4) is 6～18 μ m.

6. a kind of film of easily taking off according to claim 1, is characterized in that, the thickness of described middle level (2) is 21～58 μ m.

7. a kind of film of easily taking off according to claim 1, is characterized in that, the described thickness of easily taking off film is 40～78 μ m.