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Color intrigue shell and preparation process thereof

A preparation process and magic color technology, which is applied in the field of magic color casing and its preparation process, can solve the problems of increasing the production cost of the mobile phone back cover, unfavorable lightening of the mobile phone back cover, increasing the thickness of the mobile phone back cover, etc., and achieving bright colors The effect of stability, simple structure, and easy mass production

Pending Publication Date: 2022-05-06
SICHUAN LONGHUA FILM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the optical film in this patent is composed of a liquid crystal optical film layer and a multi-layer reflective layer, the thickness of the back cover of the mobile phone is greatly increased, which is not conducive to the lightweight of the back cover of the mobile phone, and thus makes the user experience relatively poor. In addition, due to the existence of multiple reflective layers, the production cost of the back cover of the mobile phone is increased, and the production cycle is greatly prolonged.

Method used

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  • Color intrigue shell and preparation process thereof
  • Color intrigue shell and preparation process thereof
  • Color intrigue shell and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0078] Example 1: Symphony mobile phone back cover

[0079] Prepare the alignment coating solution and the liquid crystal coating solution according to the following formulas:

[0080] Alignment coating liquid formula: 15% polyvinyl alcohol, 80% methanol and water, 5% fluorine-containing surfactant.

[0081] Liquid crystal coating solution formula: monomers satisfying formula (2) (where m and n are 4, R 1 is hydrogen atoms) 10%, monomers satisfying the formula (3) (the R 2 is methyl) 8%, CN 3%, 2,2'-azobisisobutyronitrile 0.15%, tricresyl phosphate 1%, polydimethylsiloxane 1%, trimethylsilanol 1% and Toluene 76%.

[0082] Coat the above-mentioned alignment coating solution on PET with a thickness of 100 μm by gravure coating method, send it to the hot air drying equipment after coating, and heat it at 80-85 ° C for 5 minutes to form a layer of alignment film on the PET film. The gauze rubbed and aligned the PET film to form an alignment layer, and obtained a release materi...

Embodiment 2

[0087] Example 2: Symphony mobile phone back cover

[0088] Prepare the alignment coating solution and the liquid crystal coating solution according to the following formulas:

[0089] Alignment coating liquid formula: polyvinyl alcohol 8%, methanol and water 85%, anionic surfactant 7%.

[0090] Liquid crystal coating solution formula: monomers satisfying formula (2) (where m and n are 6, R 1 is methoxy) 15%, monomers satisfying the formula (3) (the R 2 methyl) 20%, chiral agent satisfying formula (4) 2%, benzoin ether initiator 0.05%, tricresyl phosphate 0.05%, hydroxyl silicone oil 0.05%, trimethylsilanol 0.05% and toluene 62.8%.

[0091] Coat the above-mentioned alignment coating solution on PET with a thickness of 80 μm by gravure coating method, send it to the hot air drying equipment after coating, and heat it at 95-100 ° C for 8 minutes to form a layer of alignment film on the PET film. The gauze rubbed and aligned the PET film to form an alignment layer, and a rele...

Embodiment 3

[0092] Example 3: Symphony mobile phone back cover

[0093] Prepare the alignment coating solution and the liquid crystal coating solution according to the following formulas:

[0094] Alignment coating liquid formula: polyvinyl alcohol 10%, methanol and water 82%, fluorine-containing surfactant 8%.

[0095] Liquid crystal coating liquid formula: a monomer satisfying the formula (2) (where m is 4, n is 6, R 1 is methyl) 25%, monomers satisfying formula (3) (its R 2 phenyl) 5%, R1011 5%, benzoyl peroxide 1%, tricresyl phosphate 1%, 1,4-bis(hydroxydimethylsilyl)benzene 0.5% and ethyl acetate 62.5%.

[0096] Coat the above-mentioned alignment coating solution on PET with a thickness of 120 μm by gravure coating method, send it to the hot air drying equipment after coating, and heat it at 95-100 ° C for 3 minutes to form a layer of alignment film on the PET film. The gauze rubbed and aligned the PET film to form an alignment layer, and a release material was obtained. The perfo...

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Abstract

The invention discloses a fantasy color shell and a preparation process thereof, and the preparation process comprises the following steps: S1, coating a supporting body with an alignment coating liquid to prepare a release material; s2, the release material is coated with liquid crystal coating liquid, and a liquid crystal film is prepared; s3, the liquid crystal thin film is attached to the base material, and a magical color attached plate is manufactured; and S4, removing the release material of the fantasy-color laminating plate to obtain the fantasy-color shell. In the preparation process, continuous winding and coating of the coating process can be achieved in a release mode, the production efficiency is greatly improved, in addition, in the preparation process, alignment coating liquid is used for conducting alignment first and then liquid crystal coating liquid is coated, and therefore the prepared liquid crystal film is better in fantasy color effect and good in stability. And the alignment layer formed by the alignment coating liquid is removed along with the release material, so that the obtained fantasy-color shell structure is lighter and thinner.

Description

technical field [0001] The invention relates to a magic color shell and a preparation process thereof, in particular to a magic color shell for an electronic device, especially a mobile phone back cover and a preparation process thereof, and belongs to the technical field of polymer materials. Background technique [0002] As the back accessory of the mobile phone, the back cover of the mobile phone, on the one hand, protects the other components inside the mobile phone. , bright surface and color effects to improve the appearance of mobile phones. At present, the back cover materials of mobile phones mainly include metal materials, glass materials and engineering plastics. [0003] Metal materials have been people's favorite materials since ancient times. From computers to mobile phones, there are metals. Metal has strong rigidity, which can provide enough support and protection to protect mobile phones. However, the metal material has the following disadvantages as the b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/36
CPCB32B27/365B32B27/308B32B27/08B32B9/00B32B9/045B32B37/00B32B38/164B32B38/00B32B37/1284B32B38/10B32B7/12B32B7/023B29D99/001H04M1/0283C09D135/02C09D129/10C08F222/1025C08F216/1416B32B2037/243B32B2038/0076B32B2307/402C08F220/68C08F2500/26
Inventor 刁锐敏彭钦华崔旭龙罗灵
Owner SICHUAN LONGHUA FILM CO LTD
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