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Mobile phone cover glass main printing technology

A technology of glass and main body, which is applied in the direction of printing and printing devices, which can solve the problems of flat visual effect without bright spots, weakened glass strength at the edge, broken edges, etc., to avoid adverse reactions, have no effect on perspective effects, and avoid air bubbles Effect

Inactive Publication Date: 2013-11-20
广东星弛光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the need for two screens with complementary patterns in the production process, the process is complicated, so this method can only produce glass with simple patterns that can change patterns with the viewing angle.
[0005] In order to make the glass of the mobile phone present a three-dimensional effect, the current common processing scheme uses black ink to match the 2D flat glass, and the visual effect it presents is flat and has no bright spots. Although the 2.5D curved glass developed later will show different visual effects when viewed from different angles , but because the edge of the protective glass is thinner than the central area, the strength of the edge glass has been greatly weakened, and the chance of breaking the edge will increase

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A main printing process of mobile phone glass includes the following steps:

[0034] A. The first mirror silver printing: the first mirror silver printing layer is scraped on the bottom surface of the white glass sheet by screen printing technology, and dried and cured after printing; the printing materials required by weight are: Lao Tao MK -5000A mirror silver ink 100 copies, MK-120 curing agent 4 copies and PEF-103 thinner 2 copies, the screen mesh number of printing is 400 meshes, the hardness of the squeegee is 70A, the curing temperature is 60℃, and the curing time is 20 minutes, the overall thickness of the printing ink is 6μm;

[0035] B. The second blue-purple printing: the second blue-purple printing layer is scraped off by screen printing technology on the first mirror silver printing layer, and then dried and cured after printing; the materials required for printing are given by weight: Color EM-0704 blue ink 50 copies, Cicai EM-0506 purple ink 50 copies, AF-01A...

Embodiment 2

[0039] A main printing process of mobile phone glass includes the following steps:

[0040] A0. Vacuum coating: physical ion cleaning of the white glass sheet to remove impurities on the surface, and put it into the vacuum coating machine. The upper and lower surfaces of the white glass sheet are sequentially electroplated with high refractive index material TiO 2 Thin film layer and low refractive index material SiO 2 Thin film layer; among them, the temperature in the furnace of the vacuum coating machine is 40℃, and the light reflectivity on the surface of the white glass sheet after coating reaches 25%; high refractive index material TiO 2 The preparation process parameters of the film layer are: the background vacuum degree is 5.0×10 -4 Pa, working pressure is 0.1Pa, argon flow rate is 90sccm, oxygen flow rate is 70sccm, evaporation power is 4KW, the deposited high refractive index material TiO 2 The overall thickness of the film layer is 20nm; low refractive index material SiO...

Embodiment 3

[0046] A main printing process of mobile phone glass includes the following steps:

[0047] A0. Vacuum coating: physical ion cleaning of the white glass sheet to remove impurities on the surface, and put it into the vacuum coating machine. The upper and lower surfaces of the white glass sheet are sequentially electroplated with high refractive index material TiO 2 Thin film layer and low refractive index material SiO 2 Thin film layer; among them, the temperature in the furnace of the vacuum coating machine is 45℃, and the light reflectivity on the surface of the white glass sheet after coating reaches 28%; high refractive index material TiO 2 The preparation process parameters of the film layer are: the background vacuum degree is 6.0×10 -4 Pa, working pressure is 0.2Pa, argon flow is 95sccm, oxygen flow is 75sccm, evaporation power is 5KW, the deposited high refractive index material TiO 2 The overall thickness of the film layer is 25nm; low refractive index material SiO 2 The pre...

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Abstract

The invention relates to the technical field of mobile phone cover glass printing, in particular to a mobile phone cover glass main printing technology. The mobile phone cover glass main printing technology comprises the steps of (1) primary mirror-like silver printing, wherein a mirror-like silver layer is printed on the lower surface of clear glass in a blade coating mode by means of the screen printing technique; (2) secondary bluish violet printing, wherein a second bluish violet layer is printed on the lower surface of the clear glass in a blade coating mode by means of the screen printing technique; (3) tertiary pearl white printing, wherein a pearl white layer is printed on the lower surface of the clear glass in a blade coating mode by means of the screen printing technique. According to the mobile phone cover glass main printing technology, by means of the composite printing technology conducted on the clear glass and combining the primary mirror-like silver printing, the secondary bluish violet printing and the tertiary pearl white printing, printed patterns are stereoscopic, and natural transition is achieved between different ink layers. The mobile phone cover glass main printing technology has the advantages that operation is simple and convenient to control, quality is stable, production efficiency is high, and large-scale industrial production can be achieved.

Description

technical field [0001] The invention relates to the technical field of mobile phone glass printing, in particular to a main body printing process of mobile phone glass. Background technique [0002] At present, the cover glass of mobile phone in the industry usually adopts the scheme of direct printing of ink on the lower surface to achieve its positive visual effect. Most of the ink color is mainly black, and other colors are used due to the uniformity of ink color, resulting in differences in visual effects. [0003] The Chinese invention patent with application number 02109830.1 provides a method for producing concave glass. The method is to emulsify the cleaned flat glass on one side and then screen-print it with a pre-designed pattern, then soak it in a corrosion tank, wash it after soaking, then soak it in a sodium hydroxide tank, and wash it again. Remove the anti-corrosion ink, then wash and dry to complete the finished product. The concentration of hydrofluoric a...

Claims

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Application Information

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IPC IPC(8): B41M1/34B41M1/12
Inventor 王春桥陈兵张军伟
Owner 广东星弛光电科技有限公司
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