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Ultraviolet (UV) curing ink and preparation method thereof

A technology of ink and nano-silica, which is applied in ink, household utensils, applications, etc., can solve the problems of less research on UV-curable inks, and achieve the effects of rapid light-curing, excellent adhesion, and good gloss

Active Publication Date: 2015-03-25
广东理想彩色印务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] But so far, there are few researches on UV curable inks using non-isocyanate urethane acrylate as ink binder, and there are no relevant reports

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The UV curing ink of this embodiment includes the following components in mass percentage: 40% of non-isocyanate urethane acrylate oligomer, 18% of epoxy acrylate oligomer, 24% of reactive diluent, 4% of photoinitiator, nano Silica 3%, additives 2%, pigment 9%.

[0028] The non-isocyanate urethane acrylate oligomer is prepared by the following method: 51.4g ethylene carbonate, 1.73g 1,6-hexamethylenediamine, 0.5g catalyst zinc acetate are added to the container, at a temperature of 180°C, the speed React under 200r / min stirring for 6 hours. During this period, decompression and vacuuming are carried out every 2 hours to remove small molecules. After the reaction is completed, cool to obtain product A, which is a polyurethane oligomer with hydroxyl groups at the end;

[0029] The product A was reacted with 13.2 g of acrylic anhydride at 110° C. for 5 h, and the final product, non-isocyanate urethane acrylate oligomer, was obtained after cooling. The weight average molecu...

Embodiment 2

[0049] The UV curing ink of this embodiment includes the following components in mass percentage: 36% of non-isocyanate urethane acrylate oligomer, 23% of epoxy acrylate oligomer, 20% of reactive diluent, 6% of photoinitiator, nano Silica 4%, additives 2%, pigment 9%.

[0050] The non-isocyanate urethane acrylate oligomer is prepared by the following method: 43.4g ethylene carbonate, 1.86g 1,6-hexamethylenediamine, 0.4g catalyst zinc acetate are added to the container, at a temperature of 180°C, the rotation speed Stirring and reacting at 200r / min for 6h, during which the small molecules were removed by decompression and vacuuming every 2h, and cooled after the reaction to obtain product A, that is, a polyurethane oligomer with a hydroxyl group at the end;

[0051] The product A was reacted with 9.4 g of acrylic anhydride at 110° C. for 5 h, and the final product, non-isocyanate urethane acrylate oligomer, was obtained after cooling. The weight average molecular weight of the ...

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Abstract

A UV curable ink and a preparation method thereof, the UV curable ink comprises the following components in mass percentage: 32%-42% of non-isocyanate urethane acrylate oligomer, 16%-24% of epoxy acrylate oligomer, active Thinner 18%-32%, photoinitiator 3%-6%, nano-silica 2%-4%, additive 1%-2%, pigment 6%-12%. The invention also includes a preparation method of the UV curable ink. The UV curable ink of the present invention does not contain polyisocyanate functional groups, has environmental protection, can be quickly cured by light, and has good gloss, excellent adhesion, mechanical properties and oil resistance.

Description

technical field [0001] The invention relates to an ink and a preparation method thereof, in particular to a UV curable ink and a preparation method thereof. Background technique [0002] Polyurethane acrylate (PUA), as a UV-curable material, has the characteristics of fast curing speed, low energy consumption, and limited emission of volatile organic substances, and is widely used in the field of printing inks. [0003] In recent years, with the enhancement of people's awareness of environmental protection and occupational health and safety, the hazards of isocyanates have attracted great attention from all walks of life, and the corresponding laws and regulations have become increasingly stringent. For example, the national standard "GB 18581-2009 Limits of Hazardous Substances in Solvent-Based Wood Coatings for Interior Decoration Materials" stipulates that the mass fraction of free isocyanate in indoor space is less than 0.2%; the World Health Organization strictly stipul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D11/02C09D11/101
Inventor 古云海陈一杨龙
Owner 广东理想彩色印务有限公司
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