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Composite photocuring protective film as well as film pasting method and application thereof

A technology of protective film and composite light, which is applied in the direction of chemical instruments and methods, applications, and other household appliances, and can solve problems such as resistance to falling, scratch resistance, and stable bonding of curved surfaces

Pending Publication Date: 2021-05-11
SHENZHEN KANGCHENGTAI IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a composite light-cured protective film and its film-attaching method, in order to solve the technical problems existing in the existing protective film that it is difficult to take into account drop resistance, scratch resistance and stable bonding of curved surfaces

Method used

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  • Composite photocuring protective film as well as film pasting method and application thereof
  • Composite photocuring protective film as well as film pasting method and application thereof
  • Composite photocuring protective film as well as film pasting method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0056] This embodiment provides a composite photocurable protective film, the structure of which is as follows: figure 1 As shown, it includes a second protective layer 5 , a base film layer 1 , a photocurable functional layer 2 , an adhesive layer 3 , and a second protective layer 4 stacked in sequence. Wherein, the second protective layer 4 and the second protective layer 5 are respectively PET film layers; the base film layer 1 is a frosted PET film layer, and its thickness is 0.1mm; the thickness of the material of the light-curing functional layer 2 is 0.12mm; Layer 3 is a silicone adhesive layer with a thickness of 0.05 mm. Wherein, the photocurable functional layer is formed through film formation by a slurry comprising the following components by weight:

[0057] 30 parts of modified acrylic resin, 12 parts of polymethyl methacrylate, 20 parts of butyl acetate, 20 parts of ethyl acetate, 15 parts of isopropanol, 3 parts of photoinitiator, and 3 parts of auxiliary agen...

Embodiment 2

[0063] This embodiment provides a composite photocurable protective film, the structure of which is as follows: figure 1 As shown, it includes a second protective layer 5 , a base film layer 1 , a photocurable functional layer 2 , an adhesive layer 3 , and a second protective layer 4 stacked in sequence. Wherein, the second protective layer 4 and the second protective layer 5 are respectively PET film layers; the base film layer 1 is a frosted PET film layer, and its thickness is 0.12mm; the thickness of the material of the photocurable functional layer 2 is 0.09mm; Layer 3 is a silicone adhesive layer with a thickness of 0.03 mm. Wherein, the photocurable functional layer is formed through film formation by a slurry comprising the following components by weight:

[0064] 25 parts of modified acrylic resin, 15 parts of polymethyl methacrylate, 25 parts of butyl acetate, 15 parts of ethyl acetate, 10 parts of isopropanol, 5 parts of photoinitiator, and 4 parts of auxiliary age...

Embodiment 3

[0070]This embodiment provides a composite photocurable protective film, the structure of which is as follows: figure 1 As shown, it includes a second protective layer 5 , a base film layer 1 , a photocurable functional layer 2 , an adhesive layer 3 , and a second protective layer 4 stacked in sequence. Wherein, the second protective layer 4 and the second protective layer 5 are respectively PET film layers; the base film layer 1 is a frosted PET film layer, and its thickness is 0.07mm; the thickness of the material of the photocurable functional layer 2 is 0.05mm; Layer 3 is a silicone adhesive layer with a thickness of 0.08mm. Wherein, the photocurable functional layer is formed through film formation by a slurry comprising the following components by weight:

[0071] 35 parts of modified acrylic resin, 10 parts of polymethyl methacrylate, 15 parts of butyl acetate, 25 parts of ethyl acetate, 20 parts of isopropanol, 1 part of photoinitiator, and 2 parts of auxiliary agent....

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Abstract

The invention discloses a composite photocuring protective film as well as a film pasting method and application thereof. The composite photocuring protective film comprises a substrate film layer providing a supporting effect, a photocuring functional layer to be photocured and a bonding layer, and the substrate film layer, the photocuring functional layer and the bonding layer are sequentially stacked to form a sandwich structure. The composite photocuring protective film is attached to the surface of a to-be-pasted film and is subjected to photocuring treatment, so that the photocuring functional layer is cured to form the protective film layer which is completely matched with the surface of the to-be-pasted film in shape, the attaching stability can be guaranteed, and the phenomena of attaching rebound and difficult attaching are avoided; and moreover, the protective film layer does not have the phenomena of adhesion rebound and difficult adhesion.

Description

technical field [0001] The invention belongs to the technical field of film layers, and in particular relates to a composite light-curing protective film and a film-attaching method and application thereof. Background technique [0002] Most of the screen display structures of various 3C digital products currently on the market are made of glass and touch-sensitive structures, resulting in the most usable and frequently touched areas of the screen area, resulting in scratches, dirt, and easy breakage of the screen area. The problem is quite serious. If the mobile phone screen cannot be effectively protected, it will seriously affect the service life of the mobile phone screen or directly damage it. [0003] At present, in order to prevent the occurrence of the above phenomenon, there are various types of screen protective films on the market, including glass protective films, TPU protective films, and PET protective films. Using these protective films can indeed play a basi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/29C09J7/25C09J7/24G09F9/30
CPCC09J7/29G09F9/30C09J2433/006C09J2467/006C09J2475/006B32B1/00B32B7/06B32B7/12B32B27/08B32B27/36B32B27/304B32B27/16B32B27/26B32B2250/24B32B2255/10B32B2255/26B32B2270/00B32B2274/00B32B2307/40B32B2307/584B32B2307/732B32B2405/00B32B2451/00B32B2457/208C09D133/08C09J2427/006
Inventor 陈力
Owner SHENZHEN KANGCHENGTAI IND CO LTD