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Frosted tempered film and preparation process thereof

A preparation process and tempered film technology, which is applied to branch office equipment, film/sheet adhesives, coatings, etc., can solve the problems of reduced light transmittance, inability to protect the front camera, and inability to shoot normally. Soft light, good adhesion, reduce the effect of sand falling

Inactive Publication Date: 2021-04-30
东莞市品佳光学科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the related technologies mentioned above, since most smartphones currently have full-screen screens, the frosted tempered film is also a full-screen coverage, but because its surface is frosted, the light transmittance is reduced
Therefore, at the front camera of the mobile phone, the frosted tempered film is usually slotted, so that the front camera is exposed, so as to prevent the frosted tempered film from affecting the front camera and causing it to fail to shoot normally.
But the inventor believes that there is a defect that the frosted tempered film cannot protect the front camera

Method used

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  • Frosted tempered film and preparation process thereof
  • Frosted tempered film and preparation process thereof
  • Frosted tempered film and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0084] A protective oil, made by the following method:

[0085] Modified talcum powder preparation:

[0086] preprocessing. Pulverize the talcum powder by ball milling to make the particle size smaller than 120 mesh, then pickle the talcum powder with a concentration of 10% sulfuric acid solution, pickle for 30 minutes, and then wash with water to make it neutral . Then mix it with hydroxypropyl acrylate, the weight ratio of the two is 1:0.2, after stirring evenly, lower the temperature to -25°C, keep the temperature for 1.5d, and then return to room temperature, centrifuge to obtain the pretreated of talcum powder.

[0087] modified. Add titanate coupling agent to the pretreated talc powder, the weight ratio of the two is 1:0.025, add pure water, make it immersed in talc powder, soak for 15 hours, and obtain powder after centrifugation.

[0088] smash. The powder obtained in step 2 is pulverized, and the pulverization method adopts the method of ball milling, so that th...

preparation example 2

[0094] The difference from Preparation Example 1 is that the weight of each raw material is shown in Table 1. The coupling agent is silane coupling agent KH560, and the defoaming agent is polydimethylsiloxane.

[0095] During the preparation of the modified talc powder, the weight ratio of the washed talc powder to hydroxypropyl acrylate was 1:0.5, the cooling temperature was -30°C, and kept for 1 day. During the modification process, the weight ratio of talc powder to titanate coupling agent was 1:0.02, and the soaking time was 10h.

[0096] In the process of preparing the protective oil, in step 1, the temperature was raised to 50°C.

preparation example 3

[0098] The difference from Preparation Example 1 is that the weight of each raw material is shown in Table 1. The coupling agent is silane coupling agent kh550, and the defoaming agent is polyoxypropylene glyceryl ether.

[0099] During the preparation of the modified talc powder, the weight ratio of the washed talc powder to hydroxypropyl acrylate was 1:0.1, the cooling temperature was -20°C, and kept for 2 days. During the modification process, the weight ratio of talc powder to titanate coupling agent was 1:0.05, and the soaking time was 20h.

[0100] In the process of preparing the protective oil, in step 1, the temperature was raised to 80°C.

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Abstract

The invention relates to the field of mobile phone films, in particular to a frosted tempered film and a preparation process thereof, wherein the frosted tempered film comprises a frosted glass layer, the frosted glass layer is provided with a frosted area and a high-definition area, and the high-definition area is used for covering a front camera of a mobile phone. The preparation process of the frosted tempered film comprises the following steps: a step of coating protective oil: coating protective oil on a frosted area of frosted glass; a polishing step: polishing the frosted glass coated with the protective oil so as to defrosted the high-definition area and the other surface of the frosted glass; a toughening step: toughening the polished frosted glass to prepare a frosted toughened film; and an attaching step: attaching gum to the frosted glass to prepare the frosted tempered film. The frosted tempered glass film can well protect the front camera of the mobile phone, and shooting of the front camera of the mobile phone is not affected.

Description

technical field [0001] The present application relates to the field of mobile phone films, in particular to a preparation process of a frosted tempered film and a frosted tempered film. Background technique [0002] At present, the screen-to-body ratio of smart phones is getting larger and larger. When the screen of a smart phone is bumped, the screen is very fragile and needs to be replaced, which is troublesome. In order to protect the screen of a smart phone and reduce damage to the screen, a mobile phone film is usually attached to the screen so that the screen has better impact resistance. Among all kinds of mobile phone films, the tempered film has better protection performance on the mobile phone screen, which greatly reduces the broken screen rate of the mobile phone. [0003] However, the polarizing effect of the ordinary tempered film is strong. In order to reduce the polarization of the tempered film and reduce the appearance of rainbow patterns, the frosted temp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/20C09J7/30C09D133/04C09D7/62H04M1/18
CPCC09J7/20C09J7/30C09D133/04C09D7/62H04M1/185C09J2400/143C08K9/04C08K3/34
Inventor 刘双艳
Owner 东莞市品佳光学科技有限公司
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