Transparent anti-fog window film that blocks UV rays

Abstract

The invention relates to an ultraviolet-blocking transparent antifogging window film. The ultraviolet-blocking transparent antifogging window film consists of an antifogging layer (1), a first transparent polyester film or polyethylene film base material (2-1), a first ultraviolet-blocking pressure-sensitive adhesive layer (3-1), a second transparent polyester film or polyethylene film base material (2-2), a second ultraviolet-blocking pressure-sensitive adhesive layer (3-2) and a release film (4) which are compounded into a whole, wherein the antifogging layer (1) is made from an antifogging agent composition consisting of hydrophilic thermocuring solvent-type acrylic resin SAA901, propylene glycol methyl ether, dimethyl formamide, a catalyst triethylenediamine, a leveling agent, isopropyl alcohol and ethanol; both the first ultraviolet-blocking pressure-sensitive adhesive layer (3-1) and the second ultraviolet-blocking pressure-sensitive adhesive layer (3-2) are made from a mixed material consisting of a benzophenone ultraviolet absorbent, a benzotriazole ultraviolet absorbent, acrylic adhesive, a curing agent and a solvent. The ultraviolet-blocking transparent antifogging window film can block ultraviolet lastingly and prevent fog lastingly.

Description

technical field [0001] The invention relates to a transparent anti-fog window film for blocking ultraviolet rays, which is particularly suitable for pasting on the glass surface of buildings or cars. Background technique [0002] Furniture, carpets, art paintings, curtains and other fabrics in buildings or automotive interiors will accelerate aging under sunlight or strong artificial light, especially under ultraviolet light, which will cause photooxidative degradation and greatly shorten their service life. , most domestic window film products have problems such as poor UV shielding performance and poor aging resistance, that is, the blocking rate of window film to ultraviolet rays is less than 90%, and as the use time continues to increase, the appearance and physical properties of the window film also deteriorate. It will gradually decline, and the above-mentioned window film products rely on electric heating and the use of anti-fog coatings to achieve anti-fog. The forme...

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Problems solved by technology

[0002] Furniture, carpets, art paintings, curtains and other fabrics in buildings or automotive interiors will accelerate aging under sunlight or strong artificial light, especially under ultraviolet light, which will cause photooxidative degradation and greatly shorten their service life. , most domestic window film products have problems such as poor UV shielding performance and poor aging resistance, that is, the blocking rate of window film to ultraviolet rays is less than 90%, and as the use time continues to increase, the appearance and physical properties of the window film also deteriorate. It will gradually decline, and the above-mentioned window film products rely on electric heating and the use of anti-fog coatings to achieve anti-fog. The former has a good effect but is expensive and wastes resources. The latter just sprays anti-fog coatings on glass and other surfaces, but cannot be cured. , so the anti-fog durability is poor and inconvenient to use

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