CN201291620Y

CN201291620Y - PET-PE composite protective film

Info

Publication number: CN201291620Y
Application number: CNU2008201164117U
Authority: CN
Inventors: 金闯
Original assignee: SUZHOU SIDIKE STICKINESS ELECTRON STUFF CO Ltd
Current assignee: Jiangsu Stick new materials Polytron Technologies Inc
Priority date: 2008-05-08
Filing date: 2008-05-08
Publication date: 2009-08-19
Anticipated expiration: 2018-05-08

Abstract

The utility model relates to a PET-PE composite protective film, which can be used as surface protection of glass, metal plate material, plastic plate material and the like. The protective film comprises a PE layer and a first sticking layer which is coated at one side of the PE layer, a second sticking layer is coated on the other side of the PE layer and a PET layer is covered on the second sticking layer. The spreading method is to compound a certain thickness of PET at the back of a PE protective film, thereby improving the disadvantage that the oil resistance of the PE protective layer is poor, increasing the tensile strength and stiffness of the PE protective film, being convenient for operation and automatic abrasion cutting, greatly reducing the processing cost when the customers use the PET-PE composite protective film; further more, the PE protective film has the characteristics of smoothness and fitting.

Description

The PET-PE composite protection film

Technical field

The utility model relates to a kind of PET-PE composite protection film, and it can be used for the surface protection of materials such as glass, sheet metal, plastic plate.

Background technology

Materials such as glass, sheet metal, plastic plate are in carrying and use, and its surface is subjected to contact staining easily or polishing scratch scratches.Usually adopt diaphragm to cover its surface and make it to avoid damage and pollution.At present, PE (polyethylene) pressure sensitive adhesive diaphragm is widely used in the surface protection of material, and the PE diaphragm does not generally need release liners, and is cheap.PE diaphragm its submissive characteristic in use makes the surface that adheres to protected material that it can be very docile, particularly this characteristic performance more outstanding when affixed object has knuckle.But the tensile strength of PE diaphragm is not good, when PE diaphragm and the applying of protected material, if operating personnel are slightly firmly uneven, orientation stretching will take place during use, causes with protected scantling not to be inconsistent.In addition, because PE belongs to the linear structure macromolecule, cause the PE diaphragm too soft; deflection is good inadequately, and is not easy to operate in use, is difficult for the continuous mill of automation and cuts; if when adopt increasing the method for PE base material thickness and solving above shortcoming, will cause and use the cost of PE diaphragm to uprise.

Summary of the invention

The utility model provides a kind of PET-PE composite protection film, solves the too soft and not high problem of deflection that existing P E diaphragm exists.

For achieving the above object; the technical solution adopted in the utility model is: a kind of PET-PE composite protection film; comprise the PE layer and be coated on first adhesive-layer of PE layer one side, be coated with second adhesive-layer, on second adhesive-layer, be coated with a pet layer at the opposite side of PE layer.

1, in the such scheme, described PET is a PETG, and PE is a polyethylene.

2, in the such scheme, be coated with off-style paper layer or release rete at the opposite side of first adhesive-layer.

Because the technique scheme utilization, the utility model compared with prior art has following advantage:

1, because the utility model uses the mode of coating behind the compound certain thickness PET in the back side of PE diaphragm; can improve the not good shortcoming of PE diaphragm oil resistivity; improve the hot strength and the deflection of PE diaphragm; being convenient to operation and automation mill cuts; significantly reduce client's processing cost in use, can also bring into play submissive, the docile characteristic of PE diaphragm.

2, because the utility model PET film has higher draw tensile strength, rigidity and hardness, good wearability, creep resistant, and can in wider temperature range, keep this good mechanical performance, PET film stretching intensity is very big, and is higher 9 times than PE.

Description of drawings

Accompanying drawing 1 is the utility model embodiment one structural representation;

Accompanying drawing 2 is the utility model embodiment two structural representations.

In the above accompanying drawing: 1, first adhesive-layer; 2, PE layer; 3, second adhesive-layer; 4, pet layer; 5, release rete.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further described:

Embodiment one: the PET-PE composite protection film

Shown in accompanying drawing 1, a kind of PET-PE composite protection film comprises PE layer 2 and is coated on first adhesive-layer 1 of PE layer 2 one side, is coated with second adhesive-layer 3 at the opposite side of PE layer 2, is coated with a pet layer 4 on second adhesive-layer 3.Described PET is a PETG, and PE is a polyethylene.

Embodiment two: the PET-PE composite protection film

Shown in accompanying drawing 2, a kind of PET-PE composite protection film comprises PE layer 2 and is coated on first adhesive-layer 1 of PE layer 2 one side, is coated with second adhesive-layer 3 at the opposite side of PE layer 2, is coated with a pet layer 4 on second adhesive-layer 3.Opposite side at first adhesive-layer 1 is coated with a release rete 5.

The foregoing description only is explanation technical conceive of the present utility model and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present utility model and enforcement according to this, can not limit protection domain of the present utility model with this.All equivalences of doing according to the utility model spirit essence change or modify, and all should be encompassed within the protection domain of the present utility model.

Claims

1, a kind of PET-PE composite protection film comprises PE layer and first adhesive-layer that is coated on PE layer one side, and it is characterized in that: the opposite side at the PE layer is coated with second adhesive-layer, is coated with a pet layer on second adhesive-layer.

2, PET-PE composite protection film according to claim 1 is characterized in that: the opposite side at first adhesive-layer is coated with an off-style paper layer or release rete.