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Solder resist ink, preparation method thereof and circuit board

A solder mask ink and circuit board technology, applied in the field of circuit board processing, can solve the problems of easy pencil marks, insufficient surface hardness, and insufficient white color, and achieves the effect of meeting the control requirements of harmful substances, thick printing, and strong covering power.

Inactive Publication Date: 2020-11-20
佛山市鑫正化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current liquid photosensitive solder resist white inks on the market generally have problems such as yellowing after baking, insufficient white color, or insufficient surface hardness, and pencil marks.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] This embodiment provides a kind of solder resist ink, the preparation method of this solder resist ink comprises the following steps:

[0021] S1. Weigh 200g of epoxy acrylic resin, 200g of carboxylated acrylic resin, 30g of ultraviolet curable monomer, 20g of solvent, 10g of photoinitiator, 50g of triglycidyl isocyanurate, 1g of anti-yellowing agent, 10g of functional additive, and Filler 479g, spare; Wherein, carboxyl acrylic resin is commercially available common carboxyl-containing polyacrylate; UV curing monomer is commercially available dipentaerythritol hexaacrylate; solvent is commercially available divalent ester; photoinitiator is Commercially available TPO photoinitiator; Anti-yellowing agent is the v76-p anti-yellowing agent of commercially available Nanxiong Zhiyi Chemical Industry; Functional auxiliary agent is the commercially available defoamer of German BYK; Pigment and filler include 129g talcum powder and 350g titanium dioxide.

[0022] S2. After mix...

Embodiment 2

[0024] This embodiment provides a kind of solder resist ink, the preparation method of this solder resist ink comprises the following steps:

[0025] S1. Weigh 400g of epoxy acrylic resin, 50g of carboxylated acrylic resin, 100g of ultraviolet curable monomer, 80g of solvent, 50g of photoinitiator, 10g of triglycidyl isocyanurate, 20g of anti-yellowing agent, 50g of functional additive, and Filler 240g, standby; Wherein, carboxyl acrylic resin is commercially available common carboxyl-containing polyacrylate; UV curing monomer is commercially available trimethylolpropane triacrylate; solvent is commercially available dipropylene glycol methyl ether; The initiator is a commercially available 819 photoinitiator; the anti-yellowing agent is the v85-p anti-yellowing agent of Nanxiong Zhiyi Chemical Co., Ltd.; the functional auxiliary agent is a commercially available defoamer, leveling agent, A mixture of flow blocking agent and dispersant mixed in equal mass ratio; the pigment an...

Embodiment 3

[0028] This embodiment provides a kind of solder resist ink, the preparation method of this solder resist ink comprises the following steps:

[0029] S1. Weigh 240g of epoxy acrylic resin, 160g of carboxylic acrylic resin, 40g of ultraviolet curable monomer, 60g of solvent, 20g of photoinitiator, 20g of triglycidyl isocyanurate, 5g of anti-yellowing agent, 20g of functional additive, and Filler 435g, spare; Among them, carboxyl acrylic resin is commercially available common carboxyl-containing polyacrylate; UV curing monomer is commercially available dipentaerythritol hexaacrylate and trimethylolpropane triacrylate mixed in equal mass ratio Mixture; Solvent is the mixture that commercially available dipropylene glycol methyl ether and propylene glycol methyl ether mix in equal mass ratio; Photoinitiator is the mixture that commercially available MBF photoinitiator and 1173 photoinitiator mix in equal mass ratio; Anti-yellowing The agent is a mixture of commercially available 1...

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Abstract

The invention is applicable to the technical field of circuit board processing, and provides solder resist ink, a preparation method thereof and a circuit board. The solder resist ink comprises the following components: epoxy acrylic resin, carboxyl acrylic resin, an ultraviolet curing monomer, a solvent, a photoinitiator, triglycidyl isocyanurate, an anti-yellowing agent, a functional additive and a pigment filler. After being baked and cured, the solder resist ink provided by the invention not only has higher hardness and is not easy to yellow, but also has the characteristics of thick printing, strong covering power, strong pattern stereoscopic impression, good glossiness and the like, and is very suitable for surface spraying of lamp strip type flexible circuit boards such as LED lampsand the like, besides, the raw material selection of the solder resist ink meets the standards of rohs, reach, HF and the like, and the solder resist ink can be widely applied to the industry of circuit board production and meets the harmful substance management and control requirements of electronic factories.

Description

technical field [0001] The invention belongs to the technical field of circuit board processing, and in particular relates to a solder resist ink, a preparation method thereof and a circuit board. Background technique [0002] The white solder resist ink coated on the front and back surfaces of the LED lamp aluminum substrate can not only play the role of insulation, solder resistance, and circuit protection, but also fully reflect the LED light, making the LED lamp brighter and more energy-saving, and Does not affect the light color, making the appearance clean. Therefore, when making flexible circuit boards such as light strips, it is required to print a white ink with the characteristics of high brightness, high temperature resistance, acid and alkali resistance, bending resistance, and high reflectivity on the surface of the circuit board, so that it can be used outdoors and indoors. application in different environments. [0003] However, the current liquid photosensi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/101C09D11/107C09D11/03H05K3/28
CPCC09D11/101C09D11/107C09D11/03H05K3/28
Inventor 曹志滨李标沙望波李尧伍军保李发甲
Owner 佛山市鑫正化工有限公司