Antibacterial and anti-fingerprint composite film and preparation method thereof

An anti-fingerprint, composite film technology, applied in the direction of film/flake adhesive, coating, adhesive, etc., can solve the problems of difficult cleaning, fingerprint marks on the surface of the protective film, health hazards, etc.

Active Publication Date: 2016-09-21
苏州市三同电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As we all know, as long as the number of bacteria is high in places that are often touched by human hands or on the surface of objects, for example: mobile phone screens that are often touched by hands, and the mobile phone is also close to the mouth, ears and skin during use. It is spread, causing great harm to people's health; and fingers are often touched during use, leaving fingerprints and oil stains on the surface of the protective film, which is not easy to clean, and will affect the normal use of the touch screen over time
The prior art discloses a method using magnetron sputtering to prepare a layer of titanium dioxide-doped fluorine-carbon-silicon film with low surface energy on the surface of the substrate at one time. This composite film has excellent bonding force and resistance Abrasive, but its antibacterial and anti-fingerprint performance is poor

Method used

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  • Antibacterial and anti-fingerprint composite film and preparation method thereof
  • Antibacterial and anti-fingerprint composite film and preparation method thereof
  • Antibacterial and anti-fingerprint composite film and preparation method thereof

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preparation example Construction

[0049] The invention provides a method for preparing an antibacterial and anti-fingerprint composite film described in the above technical solution, comprising the following steps:

[0050] a) Coat one side of the functional substrate with an antibacterial and anti-fingerprint functional coating, followed by thermal curing and light curing to form an antibacterial and anti-fingerprint functional layer; apply an adhesive on the other side of the functional substrate, and thermally cure to form a functional adhesive layer, Then, the peeling substrate is covered on the functional adhesive layer to obtain a composite film intermediate, and the composite film intermediate includes an antibacterial and anti-fingerprint functional layer, a functional base layer, a functional adhesive layer and a peeling layer that are sequentially contacted;

[0051] b) one side of the protective film base material is coated with sizing material, and thermally cured to form a protective film adhesive ...

Embodiment 1

[0071] a) With 25 parts by weight of acrylic acid ester monomers, the acrylic acid ester monomers include methyl acrylate, ethyl acrylate, n-butyl acrylate and 2-ethyl acrylate in a mass ratio of 15:60:30:38 Base ethyl ester; The auxiliary film-forming agent of 7 weight parts, described auxiliary film-forming agent comprises the nitrocellulose film-forming agent and polyurethane film-forming agent that mass ratio is 3:7; The organic solvent of 30 weight parts, described organic solvent comprises Mass ratio is ethyl acetate and butanone of 3:14; The photoinitiator of 0.5 weight part, described photoinitiator comprises the azobisisobutyronitrile and fluorinated diphenyl titanocene that mass ratio is 3:5; The dimethyl diallyl ammonium chloride of the perfluoroalkoxy end group of 3 parts by weight, and the silver-containing nanoparticles of 3 parts by weight, the silver-containing nanoparticles comprising mass ratio of 4:5:7 Silver-loaded zeolite, sodium silver silicoborate and ti...

Embodiment 2

[0081] a), with 28 parts by weight of acrylic acid ester monomers, the acrylic acid ester monomers include methyl acrylate, hydroxyethyl methacrylate, n-butyl acrylate and acrylic acid in a mass ratio of 17:8:2:48 -2-Ethyl ethyl ester; 7 parts by weight of auxiliary film-forming agent, said auxiliary film-forming agent comprising nitrocellulose film-forming agent and polyurethane film-forming agent with a mass ratio of 4:7; 20 parts by weight of organic solvent, so Said organic solvent comprises ethyl acetate and methyl ethyl ketone that mass ratio is 6:11; The dimethyl diallyl chloride of the azobisisopropionitrile of 0.3 weight part, the perfluoroalkoxy terminal group of 0.5 weight part Ammonium chloride and 2 parts by weight of silver-containing nanoparticles, the silver-containing nanoparticles comprising a mass ratio of 2:5:7 silver-loaded zeolite, sodium silver silicoborate and titanium dioxide silicon dioxide silver copper mixed to obtain antibacterial anti-fingerprint f...

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Abstract

The invention provides an antibacterial and anti-fingerprint composite film and a preparation method thereof. The composite film comprises a protecting film base layer, a protecting film adhesive layer, an antibacterial and anti-fingerprint function layer, a functional base layer, a functional adhesive layer and a stripping layer which are contacted sequentially, wherein the antibacterial and anti-fingerprint function layer is formed by applying an antibacterial and anti-fingerprint function coating, the antibacterial and anti-fingerprint function coating is prepared from components as follows: 15-37 parts of acrylic monomers, 2-15 parts of an auxiliary film-forming agent, 25-50 parts of an organic solvent, 0.2-2 parts of a photoinitiator, 0.3-5 parts of fluorine-containing resin and 1-9 parts of silver-containing nanoparticles; the silver-containing nanoparticles are selected from one or more of silver carboxyl apatite, zirconium sodium silver phosphate, silver-containing zeolite, silver-containing sodium borate silicate and silver/copper-containing titanium dioxide/silicon dioxide. The composite film has excellent antibacterial and anti-fingerprint properties and excellent wear resistance and hardness.

Description

technical field [0001] The invention relates to the technical field of protective films, in particular to an antibacterial and anti-fingerprint composite film and a preparation method thereof. Background technique [0002] With the development of the electronic industry, the application of touch screen is more and more extensive, from the initial small-screen mobile phone, MP3, to the present large-size screen computer, ATM, medical treatment, industrial control equipment and display and TV. Especially in the past two years, the promotion of iPhone mobile phones and ipad computers has driven the development of touch screen technology, and this technology is also being gradually applied to other portable electronic products. The surface of the touch screen needs to be protected by a protective film. The protective film currently on the market needs to meet the performance requirements: such as wear resistance, anti-scratch, anti-ultraviolet light, electrostatic adsorption, n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/02C09D4/02C09D7/12
CPCC09D7/61C09D7/65C09J7/20C09J7/255C09D4/00C09J2467/006C09J2433/00C08F220/18C08F220/281C08F220/1804C08F220/1808C08F220/1802
Inventor 朱文峰
Owner 苏州市三同电子科技有限公司
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