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Ink for surface of finish paint and preparation method thereof

A technology of ink and topcoat, which is applied in the field of ink, can solve the problems of poor wear resistance and chemical resistance, unstable adhesion of UV/PU topcoat substrates, etc., and achieve simplified decoration processing technology, excellent adhesion, The effect of reducing the rate of defective products

Active Publication Date: 2013-08-21
深圳市美丽华科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a kind of printing ink and preparation method thereof for topcoat surface, and described printing ink is suitable for in UV, PU paint surface, and has excellent resistance to RCA, resistance to rubber and Chemical resistance, designed to solve the problems of unstable adhesion and poor abrasion resistance and chemical resistance on UV / PU topcoat substrates existing in traditional inks

Method used

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  • Ink for surface of finish paint and preparation method thereof
  • Ink for surface of finish paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Example 1 Take 20 parts (weight) of a ketone solvent, 35 parts (weight) of a modified acrylic resin, and 20 parts (weight) of a modified polyester resin under normal temperature and pressure, and stir at 600-1200r / min for 15-30 minutes to make After it is completely dissolved, add 1.5 parts (weight) of dispersant, 18 parts (weight) of pigment, stir evenly, pass through a three-roll machine and grind to below 10цm, then add 1.5 parts (weight) of defoamer, stir and disperse evenly, that is Get the finished product.

Embodiment 2

[0057] Take 20 parts (weight) of ketone solvent, 30.5 parts (weight) of modified acrylic resin and 20 parts (weight) of modified polyester resin under normal temperature and pressure, and stir at 600-1200r / min for 15-30 minutes to dissolve completely Finally, add 1.5 parts (weight) of dispersant, 18 parts (weight) of pigment, stir evenly, pass through three-roll machine and grind to below 10цm, then add 1.5 parts (weight) of defoamer, 5 parts (weight) of alcohol ether solvent After stirring and dispersing evenly, the finished product is obtained.

[0058] When the ink used for the surface of the topcoat obtained in the above examples is on the surface of the PU topcoat product, when the pad printing thickness is 10μm, the printing effect and physical and chemical index status of the ink on the material are shown in Table 1.

[0059] Table 1

[0060]

Embodiment 3

[0062] Under normal temperature and pressure, take 25 parts (weight) of alcohol ether solvent, 42 parts (weight) of modified acrylic resin, 12 parts (weight) of modified polyester resin, stir at 600-1200r / min for 15-30 minutes to dissolve After completion, add 1.5 parts (weight) of dispersant, 18 parts (weight) of pigment, stir evenly, pass through a three-roll machine and grind to below 10цm, then add 1.5 parts (weight) of defoamer, stir and disperse evenly, and the finished product is obtained .

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Abstract

The invention discloses ink for a surface of finish paint and a preparation method thereof. The ink is suitable for the surfaces of UV (ultraviolet) and PU (poly-urethane) paints, and has excellent RCA resistance, rubber resistance and chemical resistance. The ink comprises the following components by weight percent: 30-45% of modified acrylic resin, 10-20% of modified polyester resin, 20-30% of solvent, 0.1-5% of dispersing agent, and 0.1-5% of defoamer. The solvent used by the ink disclosed by the invention is environment-friendly, and free of PAHS (polycyclic aromatic hydrocarbons); the viscosity at room temperature of 25 DEG C is 25000-35000 CPS; and the solvent is baked for 60-90 minutes at 80 DEG C. The ink has excellent adhesive force, alcohol resistance, chemical resistance, abrasive resistance and the like on the products at the surfaces of various finish paints; and the problems of the traditional silk screen printing ink when being applied on various finish paints are effectively overcome.

Description

technical field [0001] The invention relates to the field of inks, in particular to an ink used for topcoat surfaces and a preparation method thereof. Background technique [0002] In industries such as mobile phones, car navigators, tablet computer casings, and telephone buttons, a layer of UV paint (ultraviolet-curable paint) is first sprayed on the surface of the parts, and then traditional UV inks (ultraviolet-curable inks) or traditional UV inks are used. The thermosetting ink is used for decoration or other processing on the UV paint layer. Although the traditional UV ink used can meet the requirements of high wear resistance, the traditional UV ink has the problem of unstable adhesion on some UV topcoats or PU topcoats. If the traditional thermosetting ink is used, it cannot achieve high wear resistance, and the chemical resistance cannot meet the demand. [0003] Therefore, the prior art needs to be perfected and developed. Contents of the invention [0004] In ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/10C09D11/107
Inventor 鲁春风
Owner 深圳市美丽华科技股份有限公司
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