Anti-scattering film with excellent optical and scratch-resistant properties and method for manufacturing same
An anti-scattering and transparent film technology, which is applied in chemical instruments and methods, optics, optical components, etc., can solve problems such as wrinkles, peeling, and optical property obstruction, and achieve stamping problems, suppress peeling, excellent optical properties and durability. Scratch effect
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preparation example Construction
[0065] image 3 In the preparation method of the anti-scattering film shown, the adhesive layer is directly coated on the transparent film, and the preparation method shown in the illustration is as follows.
[0066] First, a transparent anti-scattering film such as an optical PET film is prepared (step S310 ).
[0067] Next, a hard coat liquid is applied on one side of the transparent film, dried and cured to form a hard coat layer (step S320).
[0068] The step of forming a hard coat layer (step S320 ) is the same as the aforementioned step of forming a hard coat layer (step S220 ), so it will not be repeated here.
[0069] Again, one or two or more adhesives selected from acrylic adhesives, silicone adhesives, and acid-free hydroxyl-containing adhesives are applied on the opposite side of the transparent film. The binder is dried and cured to form an adhesive layer (step S330).
[0070] Then, to protect the adhesive layer, a release film is attached to the lower surface ...
Embodiment 1
[0079] An anti-scattering film including a hard coat layer, an optical PET film with a transmittance of 92%, an adhesive layer, and a release PET film with a release force of 10 g / in from top to bottom was prepared. After that, the release film is removed and attached to the touch screen panel surface.
[0080] At this time, by the roll-to-roll coating method, coated with ethanol, 20 parts by weight of inorganic nanoparticles relative to 100 parts by weight of solid content, 30 parts by weight of ultraviolet curable acrylic resin and 10 parts by weight of diphenylmethane Ketone and 2 parts by weight of azo-based dyes of the following structural formula 1 are dried and cured to form a hard coat layer with a yellowness index (YellowIndex) value of 1.0 or less. Also, the adhesive layer may utilize an acrylamide adhesive.
[0081] Structural Formula 1
[0082]
Embodiment 2
[0084] By the roll-to-roll coating method, coatings comprising ethanol, 20 parts by weight of inorganic nanoparticles relative to 100 parts by weight of solid content, 30 parts by weight of ultraviolet curable acrylic resin, 10 parts by weight of benzophenone and 3 parts by weight The azo dyes of the above structural formula 1 were dried and cured in parts by weight to form a hard coat layer. Other structures were the same as in Example 1 except that.
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