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Protection membrane with multiple application layers and preparation method of protection membrane

A protective film and bottom layer technology, which is applied in the direction of chemical instruments and methods, lamination, lamination equipment, etc., can solve the problems of screen damage and high price of film replacement, and achieve convenient die-cutting, simple process, and convenient tearing of the film layer Effect

Inactive Publication Date: 2015-06-03
深圳市博泰高分子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, after the surface of the protective film is damaged, the entire protective film needs to be replaced, which results in a high price for film replacement and certain damage to the screen. Protective film that can be used multiple times after tearing off the layers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A protective film with multiple layers of use in this embodiment, the protective film has multiple layers of use, and each layer of use layer can be peeled off from top to bottom; the base material of the use layer is transparent polyester film, transparent polyester film One side is the hardened surface of the hardening treatment, and the other side is the corona surface of the corona treatment. There is an adhesive layer between the corona surface of the upper layer and the hardened surface of the lower layer. The adhesive layer includes A and B. A region, the peeling force of the A region is 20 g / 25mm larger than the peeling force of the B region; specifically, the peeling force of the adhesive layer A region is 80g / 25mm; the peeling force of the adhesive layer B region is 60g / 25mm. The corona surface of the bottom transparent polyester film is coated with a silica gel coating, and the surface of the silica gel coating is provided with a protective film layer. The ...

Embodiment 2

[0065] The difference between this embodiment and Embodiment 1 is that: the adhesive layer of this embodiment includes two regions A and B, and the peeling force of the A region is 30g / 25mm larger than that of the B region; specifically, the adhesive The peeling force of the junction layer A area is 100 g / 25 mm; the peeling force of the adhesive layer B area is 70 g / 25 mm.

[0066] The peeling force of the silica gel coating is 200g / 25mm.

[0067] The hardening treatment agent of described hardening surface is made up of the raw material of following mass percentage:

[0068] Epoxy Acrylate 20%

[0069] Polyether Triol 3%

[0070] Ethyl acetate 76%

[0071] Azobisisobutyronitrile 1%.

[0072] Described cleaning liquid is made up of the raw material of following mass percentage:

[0073] Acetone 30%

[0074] Ethyl acetate 40%

[0075] Alcohol 40%.

[0076] Die-cutting depth Z-direction inclination angle α is 45°

[0077] The processing technology of the corona surface ...

Embodiment 3

[0080] The difference between this embodiment and Embodiment 1 is that: the adhesive layer of this embodiment includes two regions A and B, and the peeling force of the A region is 40g / 25mm larger than that of the B region; specifically, the adhesive The peeling force of the junction layer A area is 115g / 25mm; the peeling force of the adhesive layer B area is 75 g / 25mm.

[0081] The peeling force of the silica gel coating is 250g / 25mm.

[0082] The hardening treatment agent of described hardening surface is made up of the raw material of following mass percentage:

[0083] Epoxy Acrylate 25%

[0084] Polyether Triol 10%

[0085] Ethyl acetate 64.5%

[0086] Azobisisobutyronitrile 0.5%.

[0087] Described cleaning liquid is made up of the raw material of following mass percentage:

[0088] Acetone 35%

[0089] Ethyl acetate 35%

[0090] Alcohol 30%.

[0091] Die-cutting depth Z-direction inclination angle α is 60°

[0092] The processing technology of the corona surfac...

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Abstract

The invention relates to the technical field of a protection membrane, and particularly relates to a protection membrane with multiple application layers and a preparation method of the protection membrane. The protection membrane is provided with a plurality of application layers, and each application layer can be stripped from top to bottom; a base material of each application layer is a transparent polyester film, one side of the transparent polyester film is a hardening surface which is treated in a hardening manner, the other side of the transparent polyester film is a corona surface which is treated in a corona manner, a bonding layer is arranged between the corona surface of the upper application layer and the hardening layer of the lower application layer, each bonding layer comprises an area A and an area B, and the stripping force of the area A is 20g / 25mm to 45g / 25mm greater than that of the area B; the corona surface of the transparent polyester film on the bottommost layer is coated with a silica gel coating, and the surface of the silica gel coating is provided with a protection film layer. After the surface layer of the protection membrane is damaged, the application layer on the surface layer can be directly removed, the protection membrane can be further used, and the application cost is reduced. The preparation method is simple and convenient to popularize and use.

Description

technical field [0001] The invention relates to a protective film technology for mobile phones and tablet computers, in particular to a protective film with multiple layers for use and a preparation method thereof. Background technique [0002] As mobile phones and tablet computers are used more and more frequently, the number of times of sliding and knocking on the screens of mobile phones and tablet computers also increases. Generally, after the surface of the protective film is damaged, the entire protective film needs to be replaced, which results in a high price for film replacement and certain damage to the screen. A protective film that can be used many times after the layer is peeled off. This can not only reduce the cost of use for consumers, but also ensure that the screen is not easily damaged to a certain extent. Contents of the invention [0003] The purpose of the present invention is to address the above-mentioned deficiencies in the prior art, to provide...

Claims

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Application Information

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IPC IPC(8): B32B27/06B32B7/12B32B7/06B32B37/12
Inventor 陈克勇
Owner 深圳市博泰高分子材料有限公司
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