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Ultraviolet curing water-based printing ink with high curing rate for base material

A water-based ink, high-curing technology, applied in the field of coatings, can solve the problems of low photopolymerization reaction activity, complex ink process, incomplete curing, etc., achieve high comprehensive performance, increase flexibility and shear strength, and enhance reactivity. Effect

Inactive Publication Date: 2015-01-14
CHENGDU NASHUO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of the polyurethane acrylate UV-curable inks on the market now use the translation of isocyanate groups in polyisocyanates and hydroxyl groups in polyols, and use hydroxyl-containing acrylates to introduce photoactive groups. Disadvantages such as low polymerization activity and slow polymerization rate, and incomplete curing often occurs during the curing process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The UV-curable water-based ink for substrates with a high curing rate is prepared from the following raw materials in parts by weight: self-made trifunctional polyurethane acrylate: 55 parts; pigment: 1 part; 2,4,6-tri Tolyl-diphenylphosphine oxide: 5 parts; 1,6-hexanediol diacrylate: 15 parts; 3-methacryloxypropyltrimethoxysilane: 3 parts; propanol and water Mixture solvent: 100 parts.

[0019] The self-made trifunctional urethane acrylate is prepared by the following steps: mixing hexamethylene diisocyanate trimer with hydroxypropyl acrylate, dibutyltin dilaurate, and hydroquinone and heating to 50-70°C, Continue for 1~3h, that is.

[0020] Mix self-made trifunctional urethane acrylate, pigment, 1,6-hexanediol diacrylate, 3-methacryloxypropyltrimethoxysilane, propanol and water mixture solvent, and heat to 30°C for stirring After 10 minutes, 2,4,6-trimethylbenzoyl-diphenylphosphine oxide was added, stirred evenly, and then left to cool to obtain a UV-curable water-b...

Embodiment 2

[0022] The UV-curable water-based ink for substrates with a high curing rate is prepared from the following raw materials in parts by weight: self-made trifunctional urethane acrylate: 60 parts; pigment: 2 parts; 2,2'-diethyl Oxyacetophenone: 4 parts; polydipentaerythritol pentaacrylate: 18 parts; 3-methacryloxypropyl trimethoxysilane: 5 parts; propanol and water mixture solvent: 120 parts.

[0023] The self-made trifunctional urethane acrylate is prepared by the following steps: mixing hexamethylene diisocyanate trimer with hydroxypropyl acrylate, dibutyltin dilaurate, and hydroquinone and heating to 50-70°C, Continue for 1~3h, that is.

[0024] Mix self-made trifunctional urethane acrylate, pigment, polydipentaerythritol pentaacrylate, 3-methacryloxypropyltrimethoxysilane, propanol and water mixture solvent, heat to 50°C and stir for 30min, then add 2,2'-diethoxyacetophenone, stirred evenly, and then left to cool to obtain a UV-curable water-based ink for substrates with a ...

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PUM

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Abstract

The invention relates to the technical field of paint and particularly relates to ultraviolet curing water-based printing ink with a high curing rate for a base material. The ultraviolet curing water-based printing ink with the high curing rate is prepared from the following raw materials in parts by weight: 50-60 parts of home-made trifunctional urethane acrylate, 1-2 parts of pigments, 2-5 parts of a photo-polymerization initiator, 10-20 parts of a reactive diluent, 1-5 parts of a coupling agent and 100-120 parts of a solvent. The home-made trifunctional urethane acrylate adopted by the ultraviolet curing water-based printing ink can be used for strengthening photoreaction activity, increasing the cross-linking density and shortening the photocuring time; and meanwhile, the auxiliaries such as the coupling agent are added to increase the flexibility and the shearing strength, so that the water-based printing ink has relatively high comprehensive performances.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an ultraviolet-curable water-based ink for a substrate with a high curing rate. Background technique [0002] In recent years, with people's increasing requirements for environmental protection, the development of solvent-free fast-curing resins has gradually been paid attention to. UV-curable inks can significantly reduce the content of VOC (volatile organic compounds), and can be cured immediately after being irradiated with UV light at room temperature. Therefore, compared with traditional inks, UV-curable inks have the advantages of no pollution and fast curing. They are environmentally friendly inks and have been widely used in the fields of optics, electronics, medical care, automobiles and precision instruments. [0003] Urethane acrylate is one of the important matrix resins in the field of light curing. It contains urethane bonds, which can form a variety of hydrogen b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/101C09D11/107C08G18/79C08G18/67
CPCC08G18/675C08G18/792C09D11/101C09D11/107C08G2115/02
Inventor 习小山王军黄波
Owner CHENGDU NASHUO TECH