an optical film

An optical thin film and optical film technology, applied in the field of optical materials, can solve problems such as complex manufacturing process, many factors affecting product quality, thin production, and difficult quality control of high-flatness TAC film products, so as to improve flatness and realize Thin production and the effect of improving production difficulty

Active Publication Date: 2018-11-13
TAIHU JINZHANG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the relatively complex manufacturing process and many factors affecting product quality, it is very difficult to produce thin, high-flatness TAC films and control the quality of finished products

Method used

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  • an optical film
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 As shown, the optical film includes a PET layer (102), the PET layer is a PET optical film, and a TAC layer (101) is coated or cast on the upper surface of the PET film.

[0027] First configure TAC liquid: mix the materials in the following table according to the weight ratio.

[0028] material

[0029] The above-mentioned TAC liquid is uniformly distributed through extrusion coating, knife coating, bar coating, roll coating, transfer coating, curtain coating, spray coating or casting, etc. The surface of the PET film is dried and formed into a film to become a product.

[0030] The prepared products are tested, and the test results are as follows:

[0031] Test items

[0032] TAC film thickness

Embodiment 2

[0034] Such as figure 1 As shown, the optical film includes a PET layer (102), the PET layer is a PET optical film, and a TAC layer (101) is coated or cast on the upper surface of the PET film.

[0035] First configure TAC liquid: mix the materials in the following table according to the weight ratio.

[0036] material

Ratio

TAC

100

Dichloromethane

800

Methanol

43

Plasticizer

10

UV absorber

2

[0037] The above-mentioned TAC liquid is uniformly distributed through extrusion coating, knife coating, bar coating, roll coating, transfer coating, curtain coating, spray coating or casting, etc. The surface of the PET film is dried and formed into a film to become a product.

[0038] The prepared products are tested, and the test results are as follows:

[0039] Test items

Embodiment 3

[0041] Such as figure 1 As shown, the optical film includes a PET layer (102), the PET layer is a PET optical film, and a TAC layer (101) is coated or cast on the upper surface of the PET film.

[0042] First configure TAC liquid: mix the materials in the following table according to the weight ratio.

[0043] material

Ratio

TAC

100

Dichloromethane

800

Methanol

43

Plasticizer

10

[0044] High refractive agent

5

[0045] The above-mentioned TAC liquid is uniformly distributed through extrusion coating, knife coating, bar coating, roll coating, transfer coating, curtain coating, spray coating or casting, etc. The surface of the PET film is dried and formed into a film to become a product.

[0046] The prepared products are tested, and the test results are as follows:

[0047] Test items

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Abstract

The invention discloses an optical film comprising a PET film. A TAC film is coated on the PET film or arranged on the PET film through curtain coating. The invention also provides an optical film comprising a PET film. A surface modified layer or an adhesive layer is coated on the PET film. A TAC film is coated on the surface modified layer or the adhesive layer, or arranged on the surface modified layer or the adhesive layer through curtain coating. According to the invention, through composite film technology applied to PET and TAC, problems of TAC structure production difficulty can be mitigated; production of thin-type TAC films can be realized; the flatness of the surfaces of products can be improved; and the original performance of the TAC film can be maintained.

Description

Technical field [0001] The invention discloses an optical film, which belongs to the field of optical materials. Background technique [0002] TAC (Triacetate Cellulose) film is a widely used optical film. Product applications such as polarizers for displays, bases for photography, anti-glare lenses and mirrors, explosion-proof films, etc., due to its high light transmittance and good water resistance It also has a certain degree of mechanical strength, uniformity of light, and can isolate water and air. In the display and lens industry, UV blocking function is added at the same time. Due to the above advantages, TAC film has become an irreplaceable optical material in the industry. [0003] The manufacturing process of TAC film includes the steps of TAC polymer solution configuration, filtration, film casting, pre-drying, peeling, post-drying, and winding. Due to the relatively complicated manufacturing process and many factors affecting product quality, it is very difficult to p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B1/111B32B7/12B32B27/36
CPCB32B23/02B32B27/36G02B1/111
Inventor 谷至华汪敏施克炜陈晓东
Owner TAIHU JINZHANG TECH CO LTD
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