Soft-touch hardening film

A hardening film and soft-touch technology, applied in the field of optical films, can solve the problems of affecting the visual effect and the decrease of the light transmittance of the hardened film, and achieve the effect of high light transmittance and improved elasticity

Active Publication Date: 2017-05-10
HEFEI LUCKY SCI & TECH IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to ensure the smoothness of the hardened film, the thicker the elastic resin, the more particles need to be added, which causes the light transmittance of the hardened film to decrease and affects the visual effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] 1. Preparation of coating liquid for hand feeling layer

[0027]

[0028] Add 45 grams of UV elastic resin DR-U029-1 [Changxing Chemical], 5 grams of photoinitiator 184 [Tianjin Tianjiao Chemical Co., Ltd.], 0.5 grams of leveling agent BYK-350 [Bike], 20 gram of methyl ethyl ketone, stirred to obtain coating composition, stand-by.

[0029] 2. Preparation of frosted layer coating solution:

[0030]

[0031] Add 15 grams of UV elastic resin DR-U029-1 [Changxing Chemical], 0.5 grams of photoinitiator 184 [Tianjin Tianjiao Chemical Co., Ltd.], 0.01 grams of leveling agent BYK-300 [Bike], 9 One gram of silicon dioxide particles [Degussa] with a particle size of 1 μm and 75 grams of methyl ethyl ketone were stirred to obtain a coating composition, which was ready for use.

[0032] 3. Preparation of soft-touch hardened film

[0033] On one optical surface of a polyethylene terephthalate film [PG52; Lucky] with a thickness of 25 μm, coat the coating solution for the ha...

Embodiment 2

[0036] 1. Preparation of coating liquid for hand feeling layer

[0037]

[0038] Add 37.5 grams of UV elastic resin CWD-52 [Gongyao International], 3.6 grams of photoinitiator TPO [Tianjin Tianjiao Chemical Co., Ltd.], 0.3 grams of leveling agent BYK-3560 [Bike], 30 grams ethyl acetate, stirred to obtain a coating composition, ready to use.

[0039] 2. Preparation of frosted layer coating solution:

[0040]

[0041]

[0042] Add 22.5 grams of UV elastic resin CWD-52 [Gongyao International], 1.3 grams of photoinitiator TPO [Tianjin Tianjiao Chemical Co., Ltd.], 0.13 grams of leveling agent BYK-331 [Bike], 15 grams PMMA particles with a particle size of 2 μm [Sekisui Chemical] and 67 grams of ethyl acetate were stirred to obtain a coating composition, which was set aside.

[0043] 3. Preparation of soft-touch hardened film

[0044] On one optical surface of a polyethylene terephthalate film [PG52; Lucky] with a thickness of 75 μm, coat the coating solution for the hand...

Embodiment 3

[0047] 1. Preparation of coating liquid for hand feeling layer

[0048]

[0049] Add 30 grams of UV elastic resin K-JA1553 [Zhide Chemical], 2.25 grams of photoinitiator 1173 [Tianjin Tianjiao Chemical Co., Ltd.], 0.25 grams of leveling agent BYK-394 [Bike], 40 grams of toluene, stirred to obtain a coating composition, and set aside.

[0050] 2. Preparation of frosted layer coating solution:

[0051]

[0052] Add 30 grams of UV elastic resin K-JA1553 [Zhide Chemical], 2.25 grams of photoinitiator 1173 [Tianjin Tianjiao Chemical Co., Ltd.], 0.25 grams of leveling agent Tech-206 [Tiger], 22.5 grams into the container Titanium dioxide with a particle size of 3 μm [Shanghai Edo Industry] and 60 grams of toluene were stirred to obtain a coating composition, which was set aside.

[0053] 3. Preparation of soft-touch hardened film

[0054] On one optical surface of a polyethylene terephthalate film [PG52; Lucky] with a thickness of 125 μm, coat the coating solution for the h...

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Abstract

The invention relates to a soft-touch hardening film. The soft-touch hardening film comprises a transparent supporter, wherein a hand feeling layer of which the thickness is 10 to 30 mum and a frosting layer of which the thickness of 0.5 to 3 mum are sequentially arranged on one optical surface of the transparent supporter; the hand feeling layer and the frosting layer are prepared from coating liquid through ultraviolet curing; the coating liquid is prepared from the following components in parts by weight: 15 to 45 parts of UV (Ultraviolet) elastic resin, 0.5 to 5 parts of light initiator, 0.01 to 0.5 part of flatting agent and 20 to 70 parts of organic solvent. Through a double-layer structure, the soft-touch hardening film integrating smoothness and elasticity can be obtained, and the soft-touch hardening film can be widely applied to the field of screen protection and the field of in-mold decoration.

Description

technical field [0001] The invention belongs to the field of optical films, in particular to a soft-touch hardening film. Background technique [0002] With the popularity of tablet computers and large-screen smartphones, hardened film is widely used in various fields. The hardened film is attached to the surface of the screen to prevent scratches; the hardened film is injected into the shell of a tablet computer, mobile phone or notebook to prevent scratches. The surface hardness of the hardened film is generally above 2H, and the hardness is very high, which presents a problem. This kind of hardened film is attached to the screen, which can only prevent scratches, but cannot prevent the screen from breaking; this kind of hardened film is used on the casing of electronic products, and the surface is very hard, which affects the feel. Therefore, the current technology uses a soft-touch hardening film to solve these problems. [0003] In the prior art, the soft touch harde...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J7/04C09D175/14C09D7/06C09D7/12C08L67/02C09D7/47
CPCC08J7/042C08J2367/02C08J2475/14C08L2205/03C09D7/47C09D7/61C09D175/14C08L33/04C08L83/04C08L33/12C08K3/36C08K2003/2241C08K2003/2227C08K2003/2244
Inventor 刘玉磊张希堂李恒万金龙张强程晓静
Owner HEFEI LUCKY SCI & TECH IND
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