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A kind of screen printing ink for uv paint surface and preparation method thereof
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A screen printing ink and ink technology, applied in the field of two-component screen printing ink, can solve the problems of poor wear resistance and chemical resistance, unstable adhesion, etc., achieve excellent adhesion, reduce the rate of defective products, and improve production efficiency Effect
Active Publication Date: 2014-10-01
深圳市美丽华科技股份有限公司
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[0004] In view of the above-mentioned deficiencies in the prior art, the object of the present invention is to provide a screen printing ink for UV paint surface and a preparation method thereof. The screen printing ink is a two-component ink with excellent wear resistance and chemical resistance , aiming to solve the problems of unstable adhesion and poor abrasion and chemical resistance of traditional inks on substrates coated with UV topcoats
Method used
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Embodiment 1
[0055]Under normal temperature and pressure, take 20 parts (weight) of ketone solvent, 35 parts (weight) of polyester resin, 24 parts (weight) of modified polyester resin and stir at 600-1200r / min for 15-30 minutes to dissolve completely. Add 1.5 parts (weight) of dispersant, 18 parts (weight) of pigment, stir evenly, pass through a three-roller machine to grind to below 10цm, then add 1.5 parts (weight) of defoamer, stir and disperse evenly, and then the finished product is obtained.
Embodiment 2
[0057] Under normal temperature and pressure, take 20 parts (weight) of ketone solvent, 30.5 parts (weight) of polyester resin, 28.5 parts (weight) of modified polyester resin and stir at 600-1200r / min for 15-30 minutes to dissolve completely. 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, stir After uniform dispersion, the finished product is obtained.
[0058] Above embodiment gained is used for the screen printing ink of UV varnish surface, after adding curing agent, pad printing thickness is 10μm on the surface of UV lacquer product, and ink printing effect and physical and chemical index state are shown in Table 1 on the material.
[0059] Table 1
[0060]
Embodiment 3
[0062] Under normal temperature and pressure, take 25 parts (weight) of alcohol ether solvent, 38 parts (weight) of polyester resin, 16 parts (weight) of modified polyester resin and stir at 600-1200r / min for 15-30 minutes to dissolve completely , add 1.5 parts (weight) of dispersant, 18 parts (weight) of pigment, stir evenly, pass through a three-roll machine to grind to below 10цm, then add 1.5 parts (weight) of defoamer, stir and disperse evenly, and then the finished product is obtained.
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Abstract
The invention discloses a screen printing ink for a UV (ultraviolet) paint surface and a preparation method thereof. The ink comprises the following components in percentage by weight: 25-40% of polyester resin, 10-30% of modified polyester resin, 20-35% of solvent, 0.1-5% of dispersing agent and 0.1-5% of defoaming agent. The solvent used by the screen printing ink and preparation method thereof disclosed by the invention is environment-friendly and free of PAHs (polycyclic aromatic hydrocarbons); and after being baked at 80 DEG C for 60-90 minutes, the ink has the characteristics of excellent adhesive force, alcohol resistance, chemical resistance, wear resistance and the like on the UV paint surface product. The ink effectively overcomes the defects in the existing screen printing / transfer printing ink on the UV finish paint. The ink disclosed by the invention simplifies the decoration processing technique on the UV paint surface, enhances the production efficiency and greatly lowers the defective rate; and meanwhile, the invention provides more options for enriching the decoration scheme design of UV paint surface materials.
Description
technical field [0001] The invention relates to silk screen printing ink, in particular to a two-component silk screen printing ink which is used on the surface of UV paint and has excellent wear resistance and chemical resistance properties. 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. 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 s...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information
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