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A kind of washable ink resistant to high temperature and high pressure bonding and its preparation method

A technology of high temperature resistance and ink, applied in the direction of ink, household appliances, applications, etc., can solve the problems of coating cracking, not easy to wash, and not solve the flexibility requirements of flexible boards, and achieve the effect of solving cracking and excellent flexibility.

Active Publication Date: 2022-03-08
新东方油墨有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The development of printed circuit boards (PC circuit boards) has gone through the development process of single-sided-double-layer-multilayer+rigid-flexible. Designers of rigid-flexible boards can use a single component instead of multiple connectors, Composite printed circuit boards connected by multiple cables and ribbon cables have stronger performance and higher stability. At the same time, the scope of the design is limited to one component, which is optimized by bending and folding lines like a paper swan Available space, rigid-flex boards have changed the traditional planar design concept and expanded to a three-dimensional three-dimensional space concept. While bringing great convenience to product design, it also brings great challenges
[0003] The traditional PCB circuit board manufacturing process cannot meet the design and manufacture of the rigid-flex board, so the traditional silk screen resist ink cannot meet the needs of the new manufacturing process; for example, the document CN101220224B in the prior art discloses an anti-alkali UV curing Anti-etching ink, which contains strong alkali water-soluble resin, but this ink does not solve the flexibility requirements of the flexible plate part, and there will be a problem of coating cracking; document CN105331185B discloses a deep curing UV ink, In the ink, thermoplastic acrylic resin, difunctional urethane acrylic resin, high-functional urethane acrylic resin, bisphenol A epoxy acrylate and trimethylolpropane triacrylate are included, but this ink does not solve the problem of being able to achieve high temperature and high pressure ( 400Psi, 180-220℃) under the process conditions, there will be a problem that it is not easy to return and wash

Method used

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  • A kind of washable ink resistant to high temperature and high pressure bonding and its preparation method
  • A kind of washable ink resistant to high temperature and high pressure bonding and its preparation method
  • A kind of washable ink resistant to high temperature and high pressure bonding and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1: the preparation of carboxyl-containing acrylic acid copolymer resin:

[0038] Mix according to the ratio of methacrylic acid, methyl methacrylate, cyclohexyl methacrylate and dibutyl itaconate, stir evenly, add 1% reaction catalyst organic peroxide, stir evenly, control methacrylic acid, formazan The weight ratio of methyl acrylate, cyclohexyl methacrylate and dibutyl itaconate is 4:1-3:1-3:3-4, prepare a certain amount of organic solvent in the reaction kettle as the reaction substrate , at 90-120 degrees Celsius, add the prepared reactant mixture dropwise while stirring, until all are added and completely reacted. Adjust the reaction temperature and stirring speed, and adjust the ratio of the four raw materials to obtain the carboxyl acrylic acid copolymer resins A, B, C, and D with an acid value of 80-200KOH / g and a weight-average molecular weight of 1000-5000 respectively. The ratio range of the raw materials is expanded so that the weight ratio of me...

Embodiment 2

[0042] Example 2: Preparation of high-temperature and high-pressure lamination washable ink:

[0043] Select different carboxyl-containing acrylic acid copolymer resins in embodiment 1 respectively, and 3g photoinitiator (purchased from the TPO of Beijing Yingli Science and Technology), 1g pigment (Mitsubishi Corporation MA-100 carbon black), 1g dispersant (German BYK chemical The company's BYK-204), 20g inorganic filler (barium sulfate of Sahariben Chemical Co., Ltd., Germany), 1g defoamer (organic silicon defoamer KS-66 of Japan Shin-Etsu Chemical Co., Ltd.), 1g leveling agent (Germany BYK Chemical company's BYK-354) and 15g of organic solvent (dipropylene glycol methyl ether DPM of Jiangsu Yida Chemical Co., Ltd.) were mixed with a disperser (U400\80-220 high-speed disperser) for 30 minutes at high speed, and then three Roller grinder (S-65 three-roller grinder) grinds, and obtains the printing ink that particle size is less than 5 microns; Other compositions except carboxy...

Embodiment 3

[0047] Embodiment 3: the performance test of the coating film prepared by printing ink

[0048] The high temperature and high pressure lamination washable ink 1-8 prepared in Example 2 was prepared as a standard coating film, and the following properties of the coating film were evaluated.

[0049] 1. Adhesion

[0050] Print the ink 1-8 of Example 2 on the clean and dry substrate by screen printing method, put it into a hot air circulation drying oven at 130°C and dry it for 60 minutes, and then test it by cross-cut tape method Adhesion. Adhesion was evaluated according to the following criteria.

[0051] ○: No peeling off at all;

[0052] X: The edge of the ruled line came off.

[0053] 2. Surface effect

[0054] The test specimen prepared in the same manner as 1. above was observed visually. Surface effects were evaluated according to the following criteria.

[0055] ○: The surface is smooth and wrinkle-free;

[0056] X: The surface is uneven or wrinkled.

[0057] 3...

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Abstract

The invention discloses a washable ink resistant to high temperature and high pressure lamination and a preparation method thereof, a washable ink resistant to high temperature and high pressure lamination and a preparation method thereof. The ink is composed of the following components: acrylic acid copolymer resin, UV photoinitiator, pigment and filler, auxiliary agent and solvent, wherein said acrylic acid copolymerization resin adopts low molecular weight acrylic substance to obtain carboxyl-containing acrylic resin through copolymerization, and the main chain of said carboxyl-containing acrylic resin is linear Mainly straight chain, with carboxyl groups on the side chain of each polymer unit, the acid value of the carboxyl-containing acrylic copolymer resin is 80-200 mgKOH / g, and the molecular weight of the carboxyl-containing acrylic copolymer resin is 1000-5000, so that the ink coating film has a certain Toughness and suitable alkali washing stripping ability after high temperature and high pressure process.

Description

technical field [0001] The invention belongs to the technical field of electronic materials and the technical field of polymer material chemical industry, and in particular relates to a high-temperature and high-pressure lamination-resistant washable ink and a preparation method thereof. Background technique [0002] The development of printed circuit boards (PC circuit boards) has gone through the development process of single-sided-double-layer-multilayer+rigid-flexible. Designers of rigid-flexible boards can use a single component instead of multiple connectors, Composite printed circuit boards connected by multiple cables and ribbon cables have stronger performance and higher stability. At the same time, the scope of the design is limited to one component, which is optimized by bending and folding lines like a paper swan Available space, rigid-flex boards have changed the traditional planar design concept and expanded to a three-dimensional three-dimensional space concep...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/107C09D11/101C09D11/03C09D11/033
CPCC09D11/107C09D11/101C09D11/03C09D11/033
Inventor 胡仕锬
Owner 新东方油墨有限公司
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