TWI314899B - Protective film - Google Patents

Description

1314899 IX. Description of the Invention: [Technical Field] The present invention relates to a protective film, in particular to a protective film which is scratch-resistant, anti-glare and oil-stain-resistant. The substrate is provided with a scratch-resistant anti-glare layer layer by layer. And the anti-fouling layer 'knee adhesive layer is set under the substrate for adhesive adsorption, anti-scratch and sorrow are added metal emulsion to make polymer particles to improve the connection with the anti-fouling layer, and control the haze (Haze) at 0. 2%~309ί. [Prior Art] According to the rapid development of technology, traditional electronic products have gradually been replaced by newer electronic products that are lighter in weight and smaller in size. In particular, the screen form is gradually dominated by LCD screens or plasma screens. Reduced, no radiation and high brightness. Since many portable electronic products use LCD screens, such as mobile phones, PDAs, MP3 players, etc., when moving or placing, it is inevitable that there will be collision or contact, which will increase the chance of screen surface damage, in order to prevent the screen surface from being damaged. Scratch, generally attached to the surface of the protective film structure, not only maintain the original shape and aesthetics before leaving the factory, when used, the protective film can prevent splashing, anti-glare or scratch. Referring to the third figure, the protective film (9) of the prior structure comprises a substrate (91), a scratch-resistant layer (92) and an adhesive layer (93), and the anti-layer (92) is provided on the substrate (91). The upper layer has a certain thickness and hardness and is resistant to impact and scratches. The adhesive layer (93) is disposed under the substrate (91) for adhesion and adsorption, for example, to the liquid crystal screen or the glass surface. However, the scratch-resistant layer (92) can only provide partial anti-collision and anti-scratch functions, and the material used is hydrophilic, so the contact angle to the water is small, when water (94) or liquid or oil splashes. On the protective film (9), or the adhesion of sweat and fingerprint 1314899, even if it is shaken or wiped, it is not easy to dry completely. In the long run, the electronic product attached to the protective film (9) will be damaged by moisture, or After the protective 骐 (9) is stained, it is not easy to wipe clean, which makes the appearance of the product dirty and affects the effect. Therefore, the inventor of the present case has accumulated many years of experience in designing and manufacturing, and has been diagnosed and manufactured by the inventor, and has been born to solve the above problems.

A primary object of the present invention is to provide a protective film which has a better/staining protection effect, is not only less susceptible to staining, and is easier to wipe clean. Another object of the present invention is to provide a type of protection (4) which provides a scratch and anti-glare function, which reduces the reflectance of the protective enamel and increases the light transmittance. In order to achieve the above object, the protective film of the present invention comprises a substrate, a scratch-resistant layer, an anti-staining layer and an adhesive layer. The scratch-resistant anti-glare layer is provided on the substrate and has a hardness of a certain degree and can reduce light reflection and resistance. The stain layer is provided in the anti-scratch and anti-glare anti-fouling layer containing fluoride and has a large contact angle with water, and the anti-scratch and anti-glare layer: metal oxide and polymer particles to increase the degree of connection with the anti-fouling layer, the glue The adhesive layer is placed under the substrate for adhesion. DETAILED DESCRIPTION OF THE INVENTION The technical content, the object of the invention and the accomplishment of the present invention are more fully and clearly disclosed. Please refer to the drawings and drawings. As shown, it is the protective film (1) of the present invention, which comprises the anti-glare layer 〇 2), the anti-staining layer 03) and the smear layer ((4), the age guard rpr). The material is polyethylene terephthalate. Ester (PET), polycarbon win..n" methyl methacrylate methyl vinegar (PMMA) or polyethylene ring oxylate or other suitable material, scratch-resistant anti-glare layer (12) is set at 1314899 BRIEF DESCRIPTION OF THE DRAWINGS First: Scratch view of the present invention Second view: Schematic diagram of application of the present invention Third drawing: Cross-sectional view of the prior art [Description of main components] <The present invention> (1) Protective film (11) base Material (12) Scratch and anti-glare layer (13) Anti-fouling layer (14) Adhesive layer (15) Release layer (2) Liquid crystal screen Θ 2 Water contact angle <Priority> (9) Protective film ( 91) Substrate (92) Scratch resistant layer (93) Adhesive layer (94) Water raft 1 Pair of water contact angle 10

Claims (1)

1314899 Patent application scope: 1 . A protective film comprising a substrate, a scratch-resistant anti-glare layer, an anti-fouling layer and an adhesive layer, the anti-scratch and anti-glare layer is disposed on the substrate, and the anti-fouling layer is disposed on the anti-scratch and anti-glare layer, and is adhesive The layer is disposed under the substrate for adhesive adsorption; wherein the substrate is selected from the group consisting of polyethylene terephthalate (PET), polycarbonate (pc), polymethyl methacrylate (PMMA) or At least one polymer of the group consisting of polyethylene naphthenates; the component of the scratch-resistant anti-glare layer comprises a UV-curable resin and a polymer particle mixed therein; the fluoride in the anti-fouling layer; The material of the adhesive layer is at least one selected from the group consisting of acrylic, silicone or rubber. 2. The protective film according to claim 1, wherein a release layer is attached under the adhesive layer for attaching the adhesive layer to the object after peeling, and the material of the release layer is selected from the group consisting of One of the materials of Polyethylene, Polypropylene, Polyethylene or Paper. 3. The protective film of claim 1, wherein the anti-fouling layer has a water contact angle of from 90 to 120 degrees. 4' The protective film of claim 1, wherein the anti-scratch anti-glare layer contains a metal oxide to increase the degree of bonding with the anti-fouling layer, wherein the metal oxide is selected from the group consisting of titanium dioxide, cerium oxide, and the like. At least one compound of the group consisting of alumina, indium tin oxide or tin oxide. 5. The protective film of claim 4, wherein the metal oxide comprises from 0.01% to 20% by weight of the anti-scratch anti-glare layer. 6. The protective film of claim 4, wherein the metal oxide has a particle size of from 3 nm to 3 G//m. 7' The protective film of the first aspect of the patent application scope of the invention, wherein the particle size of the surface molecular particles is between 1/im and 30/zm. 11 J314899 8 If Shen Zhihuang Shen μ patent range, the haze of the first item d is between 〇. Find ~30%. / /, medium anti-scratch anti-glare layer, which is anti-scratch and anti-glare layer. The hardness of the protective film as described in claim 1 is greater than 1H. , 12