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: 2014-01-01
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-is

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-ethylenediamine, 0.5g catalyst zinc acetate are added to the container, at a temperature of 180°C, the rotation 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 mo...

Embodiment 2

[0050] 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%.

[0051] The non-isocyanate urethane acrylate oligomer is prepared by the following method: 43.4g ethylene carbonate, 1.86g 1,6-ethylenediamine, 0.4g catalyst zinc acetate are added to the container, at a temperature of 180°C, the 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;

[0052] 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 oligomer was 1...

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Abstract

The invention relates to ultraviolet (UV) curing ink and a preparation method thereof. The UV curing ink comprises the components by mass percent: 32-42% of non-isocyanate polyurethane acrylate oligomer, 16-24% of epoxy acrylate oligomer, 18-32% of reactive diluent, 3-6% of photoinitiator, 2-4% of nano silicon dioxide, 1-2% of auxiliary agents and 6-12% of pigments. The invention also discloses the preparation method of the UV curing ink. The UV curing ink does not contain a polyisocyanic acid functional group, has environmental protection property, is rapid in photocuring, and has good gloss as well as excellent adhesive force, mechanical property 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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IPC IPC(8): C09D11/101C09D11/02
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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