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A mobile phone glass protective screen exposure printing process

A technology for protecting screens and glass, which is applied in microlithography exposure equipment, photoplate-making process of pattern surface, exposure device of photo-plate-making process, etc. It can solve the problems of complex preparation method, inaccurate precision, and weak scratch resistance. , to achieve the effect of stable ink performance, high pattern fineness and good scratch resistance

Active Publication Date: 2017-10-13
萍乡星星精密玻璃科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its preparation method is complicated. Compared with the printing process of small-area panels such as mobile phone glass protective screens, there are still problems such as inaccurate precision, insufficient stability after image exposure, and weak scratch resistance.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A mobile phone glass protective screen exposure printing process, comprising the following preparation steps:

[0049] A. Printing: Use steel mesh to print photosensitive patterns on the back of the mobile phone glass white sheet. The photosensitive ink used is composed of the following raw materials in parts by weight: 40 parts of photosensitive resin, 20 parts of thermosetting epoxy resin, 10 parts of photosensitive agent, 1 part of filler, 15 parts of reactive diluent, 3 parts of auxiliary agent, 6 parts of pigment, 8 parts of solvent, 4 parts of photoinitiator; the mesh number of steel wire is 450 mesh, the film thickness of printing ink is 5 μm, and the hardness of squeegee rubber is 85A ;

[0050] B. Drying: Dry the printed mobile phone glass white sheet in a dark environment, the drying temperature is 150°C, and the drying time is 25 minutes;

[0051] C. One-time exposure: Expose the dried mobile phone glass white film under a UV lamp, and the exposure time is 4...

Embodiment 2

[0070] A mobile phone glass protective screen exposure printing process, comprising the following preparation steps:

[0071] A. Printing: Use steel mesh to print photosensitive patterns on the back of the mobile phone glass white sheet. The photosensitive ink used is composed of the following raw materials in parts by weight: 55 parts of photosensitive resin, 30 parts of thermosetting epoxy resin, 7 parts of photosensitive agent, 2 parts of filler, 12 parts of reactive diluent, 1 part of additive, 3 parts of pigment, 10 parts of solvent, 2 parts of photoinitiator; the mesh number of steel wire is 500 mesh, the film thickness of printing ink is 3 μm, and the hardness of squeegee is 90A ;

[0072] B. Drying: Dry the printed mobile phone glass white sheet in a dark environment, the drying temperature is 130°C, and the drying time is 30 minutes;

[0073] C. One-time exposure: Expose the dried mobile phone glass white film under an ultraviolet lamp, and the exposure time is 90s; ...

Embodiment 3

[0092] A mobile phone glass protective screen exposure printing process, comprising the following preparation steps:

[0093] A. Printing: Use steel mesh to print photosensitive patterns on the back of the mobile phone glass white sheet. The photosensitive ink used is composed of the following raw materials in parts by weight: 45 parts of photosensitive resin, 25 parts of thermosetting epoxy resin, 8 parts of photosensitive agent, 1.5 parts of filler, 13 parts of reactive diluent, 2 parts of auxiliary agent, 5 parts of pigment, 9 parts of solvent, 3 parts of photoinitiator; the mesh number of steel wire is 480 mesh, the film thickness of printing ink is 4 μm, and the hardness of squeegee rubber is 85A ;

[0094] B. Drying: Dry the printed mobile phone glass white sheet in a dark environment, the drying temperature is 140°C, and the drying time is 25 minutes;

[0095] C. One-time exposure: Expose the dried mobile phone glass white film under an ultraviolet lamp, and the exposu...

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Abstract

The invention relates to the technical field of printing of mobile phone glass protection screens, in particular to an exposure printing technology for a mobile phone glass protection screen. The exposure printing technology comprises the following preparation steps: (A) printing, namely printing a photosensitive pattern on the back surface of a mobile phone white glass sheet by a steel wire gauze, wherein the steel wire gauze is 450-500 meshes; the film thickness of a printing ink is 3-5 microns; and the squeegee thickness is 85-90A; (B) drying, namely drying the printed mobile phone white glass sheet in a dark environment at 130-150 DEG C for 25-30 minutes; (C) primary exposure, namely carrying out exposure on the dried mobile phone white glass sheet under an ultraviolet lamp; (D) developing, carrying out developing for 1.5-3 minutes, cleaning the glass sheet with clean water and drying the glass sheet after an image phenomenon appears; and (E) secondary exposure, namely carrying out secondary exposure on the mobile phone white glass sheet. The exposure printing technology has the characteristics of simplicity in process step, high printing accuracy, clear pattern lines, good stability after image exposure and high scratch resistance.

Description

technical field [0001] The invention relates to the technical field of mobile phone glass protective screen printing, in particular to an exposure printing process for the mobile phone glass protective screen. Background technique [0002] With the rapid development of the electronic industry, the quality requirements of electronic products are getting higher and higher. Mobile devices have become a fast-moving consumer product, but those who want to occupy a leading position in this market still need to improve the quality of mobile phones. [0003] Mobile phone glass protective screen is one of the essential components of mobile phone equipment. The general mobile phone glass protective screen is made by conventional screen printing process. However, the dimensional accuracy and complete coverage of the general screen printing process are poor. For very fine line printing, the general screen printing is obviously not satisfactory. The printing method of exposure and deve...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F7/20C09D11/101
CPCC09D11/101G03F7/2022
Inventor 王亚平王勇周光惠
Owner 萍乡星星精密玻璃科技有限公司
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