Water-based PCB (printed circuit board) circuit etching protection ink and preparation method thereof

A technology of etching protection and circuit, which is applied in the field of water-based PCB circuit etching protection ink and its preparation, can solve the problems of endangering the health of operators, polluting air, etc., and achieve the effects of reducing loss, reducing rework rate and reducing manufacturing cost

Inactive Publication Date: 2018-03-02
东莞智炜新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Organic solvent-based inks contain a large amount of organic solvents such as benzene, toluene, methyl ethyl ketone, and ethyl acetate. During the use of solvent-based inks, the volatilized solvents pollute the air and endanger the health of operators.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Weigh the following raw materials in parts by weight:

[0037] Water-based resin 10kg;

[0038] Filling 3kg;

[0039] Deionized water 0.5kg;

[0040] Defoamer 0.3kg;

[0041] Leveling agent 0.2kg;

[0042] Water-based color paste 0.3kg.

[0043] The water-based resin is a mixture of water-soluble acrylic resin and water-based acrylic emulsion, and the weight fraction ratio of water-soluble acrylic resin and water-based acrylic emulsion is 1:6; the mass concentration of water-based polyurethane in the water-based polyurethane emulsion is 30%. Prepare as follows:

[0044] a. Add water-based resin and deionized water, then stir evenly;

[0045] b. Add the filler and continue to stir until the filler is evenly dispersed and no particles can be seen with the naked eye;

[0046] c. Add defoamer and leveling agent, stir well;

[0047] d. Add water-based color paste and stir evenly;

[0048] e. Grind the slurry 3 times with a three-roll grinder, and then discharge the ...

Embodiment 2

[0050] Weigh the following raw materials in parts by weight:

[0051] Water-based resin 10kg;

[0052] Filling 3kg;

[0053] Deionized water 1kg;

[0054] Defoamer 0.3kg;

[0055] Leveling agent 0.3kg;

[0056] Water-based color paste 0.5kg.

[0057] The water-based resin is a mixture of water-soluble acrylic resin and water-based acrylic emulsion, and the weight fraction ratio of water-soluble acrylic resin and water-based acrylic emulsion is 1:5; the mass concentration of water-based polyurethane in the water-based polyurethane emulsion is 35%. Prepare as follows:

[0058] a. Add water-based resin and deionized water, then stir evenly;

[0059] b. Add the filler and continue to stir until the filler is evenly dispersed and no particles can be seen with the naked eye;

[0060] c. Add defoamer and leveling agent, stir well;

[0061] d. Add water-based color paste and stir evenly;

[0062] e. Grind the slurry 3 times with a three-roller grinder, and then discharge the ...

Embodiment 3

[0064] Weigh the following raw materials in parts by weight:

[0065] Water-based resin 10kg;

[0066] Filling 4.5kg;

[0067] Deionized water 1.0kg;

[0068] Defoamer 0.2kg;

[0069] Leveling agent 0.3kg;

[0070] Water-based color paste 0.6kg.

[0071] The water-based resin is a mixture of water-soluble acrylic resin and water-based acrylic emulsion, and the weight fraction ratio of water-soluble acrylic resin and water-based acrylic emulsion is 1:8; the mass concentration of water-based polyurethane in the water-based polyurethane emulsion is 40%. Prepare as follows:

[0072] a. Add water-based resin and deionized water, then stir evenly;

[0073] b. Add the filler and continue to stir until the filler is evenly dispersed and no particles can be seen with the naked eye;

[0074] c. Add defoamer and leveling agent, stir well;

[0075] d. Add water-based color paste and stir evenly;

[0076] e. Grind the slurry 3 times with a three-roller grinder, and then discharge th...

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PUM

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Abstract

The invention provides water-based PCB (printed circuit board) circuit etching protection ink, which is prepared from the following raw materials in parts by weight: 100 parts of water-based resin, 30to 50 parts of filling materials, 5 to 15 parts of deionized water, 1 to 3 parts of antifoaming agents, 1 to 3 parts of flatting agents and 3 to 8 parts of water-based color paste. The protection inkprovided by the invention is in a self-drying type; the external addition of energy for promoting the glue film curing is not needed; the production energy consumption can be reduced; the number of external equipment is reduced; the manufacturing cost is reduced; no organic solvent is used; the environment-friendly effect is achieved.

Description

technical field [0001] The invention belongs to the technical field of printed circuit board inks, and in particular relates to a water-based PCB circuit etching protection ink and a preparation method thereof. Background technique [0002] In the process of PCB production, circuit etching is a very critical step. If the circuit etching fails to meet the requirements, the subsequent process cannot be carried out, and it is impossible to complete the production of PCB. According to different etching solutions, PCB circuit etching is divided into acid etching and alkaline etching; according to the curing method of etching protection ink, it can be divided into self-drying curing ink and UV curing ink. The present invention is aimed at self-drying and solidifying acid etching protective ink, and its technological process is: screen-print the protective ink on the copper plate through the screen, and the designed circuit has been dried on the screen, and the designed circuit is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/107C09D11/102C09D11/03C09D11/033
CPCC09D11/03C09D11/033C09D11/102C09D11/107
Inventor 张安洪刘燕锋李冬福
Owner 东莞智炜新材料股份有限公司
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