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Sand-hole-free printing method for semitransparent material

A technology of translucent materials and printing methods, applied in printing, printing devices, inks, etc., can solve the problems of trachoma on the surface, cost increase, etc., and achieve the effects of solving trachoma problems, reducing costs, and controlling bad trachoma and poor color difference

Active Publication Date: 2021-07-16
昊佰电子科技(上海)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the unevenness of the frosted surface of the translucent material, the printing pigment has fluidity and is easy to be colorless at the local bump position, resulting in trachoma on the surface. In order to reduce or avoid The emergence of trachoma, at this stage, the bumps are covered by multiple printings, which directly leads to an increase in cost

Method used

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  • Sand-hole-free printing method for semitransparent material
  • Sand-hole-free printing method for semitransparent material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A trachoma-free printing method for translucent materials, the method comprising the following steps:

[0039] (1) Preparation of primer

[0040] 60 parts of polyurethane emulsion resin with a viscosity of 100mPa s; 25 parts of thermoplastic acrylic resin; 15 parts of vinyl acetate; 25 parts of modified silica sol; 2 parts of ammonium hydroxide; 2 parts of dibutyltin dilaurate; hydrophilic isocyanate 8 parts of curing agent; 6 parts of deionized water, stirred and mixed at room temperature for 20 minutes to obtain a primer.

[0041] The modified silica sol is prepared by mixing silica particles and silica sol at a mass ratio of 1:8, wherein the particle size of the silica particles is 500 mesh.

[0042] (2) Use screen printing to print a layer of primer on the frosted surface of the translucent glass; the conditions for screen printing are: the mesh number of the printing screen is 600 mesh, the printing thickness is 15 microns, and the printing speed is 1.5 m / Second...

Embodiment 2

[0046] A trachoma-free printing method for translucent materials, the method comprising the following steps:

[0047] (1) Preparation of primer

[0048] 70 parts of polyurethane emulsion resin with a viscosity of 50 mPa s; 30 parts of thermoplastic acrylic resin; 10 parts of vinyl acetate; 20 parts of modified silica sol; 1 part of ammonium hydroxide; 1 part of dibutyltin dilaurate; hydrophilic isocyanate 5 parts of curing agent; 3 parts of deionized water, stirred and mixed at room temperature for 10 minutes to obtain primer.

[0049] The modified silica sol is prepared by mixing silica particles and silica sol at a mass ratio of 1:6, wherein the particle size of the silica particles is 400 mesh.

[0050] (2) Print a layer of primer on the matte surface of the translucent crystal by screen printing; the conditions of screen printing are: the mesh number of the printing screen is 600 mesh, the printing thickness is 10 microns, and the printing speed is 1.0 m / Second, the dis...

Embodiment 3

[0053] A trachoma-free printing method for translucent materials, the method comprising the following steps:

[0054] (1) Preparation of primer

[0055] 50 parts of polyurethane emulsion resin with a viscosity of 150mPa·s; 20 parts of thermoplastic acrylic resin; 20 parts of vinyl acetate; 30 parts of modified silica sol; 3 parts of ammonium hydroxide; 3 parts of dibutyltin dilaurate; hydrophilic isocyanate 10 parts of curing agent; 10 parts of propylene glycol methyl ether acetate, stirred and mixed at room temperature for 30 minutes to obtain a primer.

[0056] The modified silica sol is prepared by mixing silica particles and silica sol at a mass ratio of 1:10, wherein the particle size of the silica particles is 600 mesh.

[0057] (2) Use screen printing to print a layer of primer on the frosted surface of translucent plastic; the conditions for screen printing are: the mesh number of the printing screen is 800 mesh, the printing thickness is 20 microns, and the printing ...

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Abstract

The invention relates to a sand-hole-free printing method for a semitransparent material. The sand-hole-free printing method comprises the following steps that (1) a layer of primer is printed on a frosted surface of the semitransparent material in a silk-screen printing manner; and (2) a set color is printed on the surface of the primer. Compared with the prior art, the sand-hole-free printing method has the advantages of cost reduction, no sand holes and the like.

Description

technical field [0001] The invention relates to a printing process for translucent materials, in particular to a trachoma-free printing method for translucent materials. Background technique [0002] Translucent materials refer to materials with a light transmittance of less than 80%. Generally, one side of a pure transparent material is polished to a frosted surface, so the two sides of a translucent material are mirror surfaces and the other is a frosted surface. [0003] Translucent materials are widely used in scientific fields such as industrial production, biomedicine, and information communication. With the technological development and demand growth of consumer electronics products such as smartphones, LEDs, tablets, touch screens and smart watches, the demand for translucent materials in the industrial market is increasing day by day because of the excellent texture and good touch of translucent materials, and translucent materials are often used. The material is t...

Claims

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Application Information

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IPC IPC(8): B41M1/12C09D4/06C09D11/04C09D11/06
CPCB41M1/12C09D4/06C09D11/04C09D11/06C09D5/002
Inventor 周姿刘晓鹏
Owner 昊佰电子科技(上海)有限公司
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