Water-soluble (Ultra Violet) curing ink and preparation method thereof

A water-based ink technology, applied in ink, household utensils, applications, etc., can solve the problems of gloss, hardness, adhesion, aging resistance, wear resistance, poor water resistance, and good hydrophilicity, etc., to achieve adhesion and Excellent wear resistance, aging resistance and solvent resistance, fast curing effect

Active Publication Date: 2013-03-20
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the water-based UV-curable inks disclosed in the above-mentioned existing patents still have the following disadvantages: (1) The water-based UV-curable inks have good hydrophilicity and relatively poor water resistance
(2) The linking materials in water-based UV curing inks, such as polyurethane acrylate or epoxy acryl

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0040] Example 1

[0041] Under nitrogen protection and stirring at 150 rpm, 10g polyethylene glycol (molecular weight 400), 8.7g toluene-2,4-diisocyanate and 0.009g dibutyltin dilaurate were added to the three-necked flask at 40℃. React for 3h; add 1.41g dimethylolpropionic acid and react at 75℃ for 1.5h; add 2.9g hydroxyethyl acrylate and 0.0015g hydroquinone, react at 80℃ for 1.5h, add 4.06g acetone during the reaction to adjust Viscosity: cooling to below 50°C, adding 1.22g of triethylamine to neutralize the salt to obtain anionic waterborne polyurethane acrylate. The anionic water-based polyurethane acrylate was blended with 3.14 g of water-based silica sol (20 nm), and stirred at 500 rpm for 1 hour to obtain a silica sol-modified water-based polyurethane acrylate prepolymer. Take 7g of the above-mentioned silica sol-modified waterborne polyurethane acrylate prepolymer, 1g of water-based red pigment and 0.95g of deionized water to fully grind, and disperse for 2h under t...

Example Embodiment

[0044] Example 2

[0045] Under nitrogen protection and stirring at 150 rpm, add 10g polyethylene glycol (molecular weight 400), 4.35g toluene-2,4-diisocyanate and 0.001g dibutyltin dilaurate into the three-necked flask at 50℃. React for 2h; add 0.44g dimethylolpropionic acid and react at 70℃ for 2h; add 1.45g hydroxyethyl methacrylate and 0.0001g hydroquinone, react at 90℃ for 1h, add 1.8g acetone during the reaction to adjust Viscosity; cooling to below 50°C, adding 0.3g of triethylamine to neutralize the salt to obtain anionic waterborne polyurethane acrylate. The anionic water-based polyurethane acrylate is blended with 0.18 g of water-based silica sol (20 nm), and stirred at 600 rpm for 0.5 h to obtain a silica sol-modified water-based polyurethane acrylate prepolymer. Take 6g of the above-mentioned silica sol-modified waterborne polyurethane acrylate prepolymer, 1.5g of water-based green pigment and 2g of deionized water to fully grind, disperse for 1h at 50℃, 600rpm ...

Example Embodiment

[0048] Example 3

[0049] Under nitrogen protection and stirring at 150 rpm, first add 25g polycaprolactone diol (molecular weight 1000), 13.05g toluene-2,4-diisocyanate and 0.023g dibutyltin dilaurate into the three-necked flask. React at 60℃ for 1h; add 2.56g dimethylolpropionic acid and react at 80℃ for 1h; add 2.35g hydroxyethyl acrylate, 2.00g hydroxyethyl methacrylate and 0.0044g hydroquinone, react at 70℃ For 2h, 7.5g of acetone was added to adjust the viscosity during the reaction; the temperature was lowered to below 50°C, and 2.42g of triethylamine was added to neutralize the salt to obtain anionic waterborne polyurethane acrylate. The anionic water-based urethane acrylate and 9.98 g of water-based silica sol (20 nm) were blended and stirred at 600 rpm for 0.8 h to obtain a silica sol-modified water-based polyurethane acrylate prepolymer. Take 8.5g of the above-mentioned silica sol-modified waterborne polyurethane acrylate prepolymer, 0.5g of water-based blue pigme...

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PUM

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Abstract

The invention relates to a water-soluble (Ultra Violet) curing ink and a preparation method thereof, and belongs to the technical field of environmental protection ink. The water-soluble UV curing ink comprises the following components by mass percent: 60 to 85% of silica sol modified water-soluble urethane acrylate prepolymer, 1 to 10% of photoinitiator, 5 to 15% of pigment, 5 to 20% of solvent and 0 to 1% of assistant. The water-soluble UV curing ink is environment-friendly, nontoxic, fast in curing rate, high in stability, excellent in ageing resistance and solvent resistance, outstanding in adhesive force and wear resistance and suitable for a plurality of printing modes, meets the production requirement, and can be widely applied to the surfaces of printing materials such as paper materials, wood materials, plastics, metals and glass.

Description

technical field [0001] The invention relates to a water-based UV curable ink and a preparation method thereof, belonging to the technical field of environmental protection inks. Background technique [0002] Traditional solvent-based inks are mainly composed of pigments, binders, organic solvents and additives. VOC (volatile organic compounds) emissions are large and environmental pollution is serious, posing a huge threat to air quality, packaging contents and human health. Water-based ink uses water as a solvent instead of organic solvents, which significantly reduces VOC emissions, prevents air pollution, does not affect human health, and has good overall ink performance. It is especially suitable for food, beverages, medicines, children's toys, etc. that require high hygiene conditions. packaging prints. However, it has disadvantages such as poor solvent resistance, slow drying, poor gloss, and easy to cause paper shrinkage. UV curing ink is a new application in the fi...

Claims

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Application Information

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IPC IPC(8): C09D11/10C08G18/67C08G18/10C09D11/101
Inventor 刘兴海吕彩虹杨耀黎厚斌黄驰钱俊
Owner WUHAN UNIV
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