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Water-based uv curing ink and preparation method thereof

A water-based ink technology, applied in inks, household utensils, applications, etc., can solve the problem of water-based UV curable ink gloss, hardness, adhesion, aging resistance, wear resistance gap, poor water resistance of water-based UV curable ink, water-based UV Solve problems such as poor stability of cured ink, achieve good aging resistance and solvent resistance, fast curing speed, and low environmental impact

Active Publication Date: 2019-02-15
SHANGHAI MOCHUAN NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, there are still some problems in the current water-based UV curable inks: (1) the water resistance of water-based UV curable inks is relatively poor; (2) the stability of water-based UV curable inks is poor; (3) the gloss, hardness, Compared with solvent-based inks, there is still a big gap in adhesion, aging resistance, and abrasion resistance.

Method used

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  • Water-based uv curing ink and preparation method thereof
  • Water-based uv curing ink and preparation method thereof
  • Water-based uv curing ink and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-7

[0059] Table 1 shows the compositions of the aqueous UV-curable inks of Examples 1-7. Wherein, A is a water-based modified polylactic acid acrylate prepolymer; B is a polyvinyl alcohol aqueous solution of soil enzymes with porous hydroxyapatite as a carrier; C is a photoinitiator; D is a colorant; E is a solvent; F is an auxiliary agent; G is a stabilizer.

[0060] The water-based UV curable ink of table 1 embodiment 1-7

[0061]

[0062]

Embodiment 1

[0063] Embodiment 1 preparation method

[0064] (1) Pre-preparation of water-based modified polylactic acid acrylate prepolymer:

[0065] Add 8.0g of lactic acid, 1.0g of pentaerythritol, and 0.01g of stannous octoate into the reaction kettle, stir at 200r / min, heat to 120°C, distill off water, gradually increase the temperature and reduce pressure to 160°C, 3.0kPa, and accelerate dehydration. After removing the distilled water, continue to reduce the pressure to 2.0kPa, keep 170°C for 2h constant temperature reaction, and cool down to 50-60°C after the reaction; then, add 1.6g of hydroxycarboxylic acid of formula I and 3.0g of polystyrene with a molecular weight of 200 Ethylene glycol, wherein the R group is a methylene carboxyl group, n=4, set the temperature at 85°C for 2 hours; then add 1.5g of hydroxyethyl methacrylate to continue the reaction; after the reaction, add 0.001g of p-formaldehyde Oxyphenol, continue to react at 80°C for 2h, the viscosity of the solution ca...

Embodiment 2

[0073] Embodiment 2 preparation method

[0074] (1) Pre-preparation of water-based modified polylactic acid acrylate prepolymer:

[0075] Add 15.0g of lactic acid, 2.5g of pentaerythritol, and 0.015g of stannous octoate into the reaction kettle, stir at 200r / min, heat to 120°C, distill off water, gradually increase the temperature and reduce pressure to 160°C, 3.0kPa, and accelerate dehydration. After removing the distilled water, continue to reduce the pressure to 2.0kPa, keep 170°C for 2h constant temperature reaction, and cool down to 50-60°C after the reaction; then, add 3.0g of hydroxycarboxylic acid of formula I and 9.0g of poly Ethylene glycol, where the R group is a C=C double bond, n=5, set the temperature at 85°C for 2 hours; add 3.4g of hydroxyethyl methacrylate to continue the reaction; add 0.0018g of terephthalate after the reaction Phenol, continue to react at 80°C for 2h, the viscosity of the solution can be adjusted by adding 5.12g of ethanol; cool down to r...

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Abstract

The invention provides water-based UV (ultraviolet) curing printing ink and a method for preparing the same. The water-based UV curing printing ink is mainly made of low-polymerization polylactic acid, diol and hydroxycarboxylic acid. The method includes adding hydroxied acrylate into the low-polymerization polylactic acid, the diol and the hydroxycarboxylic acid to obtain active end groups; synthesizing water-based UV curing resin; adding pigment and solvents into the water-based UV curing resin to obtain mixtures and sufficiently grinding the mixtures; adding auxiliaries and photoinitiators into the mixtures and uniformly dispersing the auxiliaries and the photoinitiators to obtain the water-based UV curing printing ink. The water-based UV curing printing ink and the method have the advantages that the water-based UV curing printing ink is good in stability, and can cooperate with added soil enzyme supported porous hydroxyapatite after being discarded, accordingly, microorganisms in soil can be activated and gathered, ink films can be quickly decomposed, and the water-based UV curing printing ink and the method can be particularly applied to the field of degradable environment-friendly packaging and are little in environmental influence.

Description

technical field [0001] The invention relates to a water-based UV curing ink and a preparation method thereof. Background technique [0002] At present, the inks widely used in the printing industry are traditional solvent-based inks, which will emit a large amount of volatile organic compounds (VOCs) during use, causing serious pollution to the air; in addition, organic solvents themselves are flammable liquids that form with the air after volatilization. When the mixed gas reaches the explosion limit concentration, it will explode when it encounters an open flame, and the safety factor in the production, transportation, and operation processes is low; moreover, the toxicity of organic solvents is extremely harmful to the health of production and operating personnel. However, water-based ink uses low-cost, environmentally friendly and harmless water as a solvent, greatly reduces the emission of volatile organic compounds, integrates economy, environmental protection, health ...

Claims

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Application Information

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IPC IPC(8): C09D11/101C09D11/104C09D11/106C09D11/03C08G63/08C08G63/91
CPCC08G63/08C08G63/912C09D11/03C09D11/101C09D11/104C09D11/106
Inventor 张俊超李勇锋春胜利白朋立白成坡刘翠华
Owner SHANGHAI MOCHUAN NEW MATERIAL TECH CO LTD
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