High-covering black UV silkscreen printing ink

A screen printing ink, black technology, applied in inks, household appliances, applications, etc., can solve problems such as thermal shock resistance, weather resistance, unsuitable mechanical properties, difficult UV drying and curing of UV inks, and difficulty in popularizing and using UV inks. Guaranteed beautiful appearance, improved interface effect, excellent covering power

Active Publication Date: 2017-01-04
SUZHOU BETELY POLYMER MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The most important thing is that the existing UV ink is difficult to dry and cure
Increase the amount of powder and improve the hiding power of the paint film. After being cured by a UV machine, it usually only reaches surface dryness, and it is difficult to cure in the deep layer, so the surface of the paint film shrinks, cracks, and orange peel phenomenon occur, while the deep layer of the paint film is not cured. Affect the overall physical properties of the coating, especially the poor adhesion to the substrate, thermal shock resistance, weather resistance, and mechanical properties are not suitable for the requirements of computer keyboards
[0008] At present, the industry is facing the problem that UV black screen printing ink is difficult to cure due to its high hiding power, which makes UV system inks still limited. Compared with solvent-based inks, this shortcoming makes it difficult to promote the use of UV-based inks, and solvent-based inks are not environmentally friendly. Still occupying most of the market share

Method used

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  • High-covering black UV silkscreen printing ink
  • High-covering black UV silkscreen printing ink
  • High-covering black UV silkscreen printing ink

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] By weight, aliphatic polyurethane acrylate (double bond chemical industry, 5290), polyester acrylate (double bond chemical industry, 281), epoxy acrylate (double bond chemical industry, 127-TP20) according to the ratio of 4: 2: 0.5 Proportionally mixed to form 68 parts of acrylic resin, and then placed in a 50°C constant temperature room to preheat for 24 hours, and then 28 parts of active monomers (Sartomer, HDDA) were used to adjust the viscosity of the resin to meet the requirements of the dispersion process. Add 0.45 parts of amine-based dispersant (Bik, BYK-163), and use a disperser (1000 rpm, 12min) to fully mix the acrylate, active monomer and amine-based dispersant evenly. In the disperser, drop into 1.5 parts of carbon black 1# (Mitsubishi, A100), 3 parts of carbon black 2# (spring earth, AS-702G) the pigment 4.5 parts of composition and the inorganic filler calcium carbonate of 4.5 parts, barium sulfate, then Adjust the gear of the disperser to the standard pa...

Embodiment 2

[0054] In parts by weight, mix aliphatic urethane acrylate (Sartomer, CN9006), polyester acrylate (Sartomer, CN704), and epoxy acrylate (Sartomer, CN119) in a ratio of 4:2:0.5 Constitute 65 parts of acrylate resin, then place it in a constant temperature room at 50°C for 24 hours, and then use 25 parts of active monomers (Sartomer, HDDA, TMPTA) to adjust the viscosity of the resin to meet the requirements of the dispersion process. Add 2 parts of amine-based dispersant (Bik, BYK-163), and use a disperser (speed 1000 rpm, 10min) to fully mix the acrylate, active monomer and amine-based dispersant evenly. In the dispersion machine, drop into 1.2 parts of carbon black 1# (Mitsubishi, A100), 3.7 parts of carbon black 2# (spring earth, AS-702G) the pigment 4 parts of composition and 4.5 parts of inorganic filler calcium carbonate, barium sulfate, then Adjust the gear of the disperser to the standard parameters (1200 rpm, 25min). After the mixture is obtained, use a three-roll machi...

Embodiment 3

[0057] By weight, aliphatic polyurethane acrylate (double bond chemical industry, 5290), polyester acrylate (double bond chemical industry, 281), epoxy acrylate (double bond chemical industry, 127-TP20) according to the ratio of 4: 2: 0.5 Proportionally mixed to form 68 parts of acrylic resin, and then placed in a constant temperature room at 50 ° C for 24 hours to preheat, and then 20 parts of active monomer (Sartomer, HDDA) to adjust the resin viscosity to meet the requirements of the dispersion process. Add 2.1 parts of amine-based dispersant (Bik, BYK-163), and use a disperser (1000 rpm, 10min) to fully mix the acrylate, active monomer and amine-based dispersant evenly. Then put 1.8 parts of carbon black 1# (Spring Earth, AS-25TK), 3.6 parts of carbon black 2# (Spring Earth, AS-99A) into the disperser, 7 parts of pigments and 6 parts of inorganic filler calcium carbonate, sulfuric acid Barium, then adjust the gear of the disperser to the standard parameters (rotating speed...

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Abstract

The invention discloses a high-covering black UV silkscreen printing ink. A preparation method for the high-covering black UV silkscreen printing ink comprises the following steps: preheating acrylate and then mixing the preheated acrylate with a part of active monomer; then adding a dispersant and carrying out primary dispersion; then successively adding pigment and a filling material and carrying out secondary dispersion; carrying out grinding to obtain color paste; mixing a phosphine oxide photoinitiator with residual active monomer; and adding the color paste, an organosilicon antifoaming agent and an organosilicon leveling agent and carrying out uniform dispersion so as to obtain the high-covering black UV silkscreen printing ink. The high-covering black UV silkscreen printing ink provided by the invention is reasonable in composition; all the components are in good compatibility; and the prepared printing ink has excellent comprehensive properties and good storage performance, and the viscosity of the printing ink is suitable for silkscreen printing. The printing ink does not need increase in the usage amounts of components like carbon black, prevents unfavorable influence of the components on the appearance and light shading performance of a product, and can meet light shading requirements of the product after only one printing and under the condition of a thickness of 7 to 8 micrometers, so unexpected technical effects are obtained.

Description

technical field [0001] The invention relates to the technical field of inks, in particular to a high-covering black UV screen printing ink, which can be used for computer keyboard printing. Background technique [0002] UV curing is ultraviolet curing. UV is the English abbreviation of ultraviolet. Curing refers to the process of changing a substance from a low molecular weight to a high molecular weight. The photoinitiator in the liquid UV material is stimulated by using the medium and short wavelengths of UV ultraviolet light under UV radiation. It becomes a free radical or a cation, thereby triggering the polymer material (resin) containing active functional groups to polymerize into an insoluble and infusible solid coating film. It is a new technology that emerged in the 1960s, is environmentally friendly, and has low VOC emissions. , After the 1980s, it developed rapidly in our country. UV curing generally refers to the curing conditions or requirements of coatings (pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/101C09D11/107C09D11/03
Inventor 葛鹏徐宏汪小峰
Owner SUZHOU BETELY POLYMER MATERIALS CO LTD
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