Water printing ink using synthetic water solid acrylate resin as base material and its preparation method

A technology of solid acrylic and water-based inks, which can be used in inks, household utensils, applications, etc., and can solve problems such as poor resolubility, poor printing effects, and poor rheological properties of inks.

Inactive Publication Date: 2006-01-11
KUNMING YUEDUN INK SCI & TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From a technical point of view, the rheological properties of emulsion-based inks are not very good, the film-forming gloss is not good, the resolubility is not good, and the wettability to pigments is not good, especia

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Add 55% by weight of water and 4.0% of ethanol into the reaction kettle, raise the temperature to 60°C, stir evenly at 80 rpm, add 1 / 3 of the total amount of ammonium persulfate, and slowly add acrylic mixed monomers dropwise , the dropwise addition is controlled within 1 hour to 2 hours, and the acrylic mixed monomer is 16% butyl acrylate, 12% methyl methacrylate, and 12% acrylic acid. Ammonium persulfate is regularly added during the dropping process, and the remaining ammonium persulfate is also added after the dropwise addition of the mixed monomers. After the reaction, cool, filter, wash and dry to obtain a solid resin powder. The main indicators are that the appearance is white powder, the solid content is >98%, the glass transition temperature is 20°C, and the acid value is 233mgKOH / g. Proportionally in another reaction kettle, first dissolve 20% by weight of water-based solid acrylic resin with 45% of water, 10% of ethanol, 5% of ethanolamine, and 1.0% of NH4OH ...

Embodiment 2

[0022] Add 55% by weight of water and 4.2% of ethanol into the reaction kettle, raise the temperature to 80°C, stir evenly at 70 rpm, add 1 / 3 of the total amount of ammonium persulfate, slowly drop styrene, acrylic acid The mixed monomers are controlled to be added dropwise within 1 hour to 2 hours. The styrene and acrylic mixed monomers are 24% by weight of styrene, 8% of butyl acrylate and 8% of acrylic acid. Ammonium persulfate is regularly added during the dropping process, and the remaining ammonium persulfate is also added after the dropwise addition of the mixed monomers. After the reaction, cool, filter, wash and dry to obtain a solid resin powder. The main indicators are that the appearance is white powder, the solid content is >98%, the glass transition temperature is 55 ° C, and the acid value is 155 mgKOH / g. Proportionally in another reactor, first dissolve 20% of the water-based solid acrylic resin by weight in 42% of water, 15% of ethanol, 3% of ethanolamine, and...

Embodiment 3

[0030] Add water accounting for 58.5% by weight into the reaction kettle, raise the temperature to 90°C, stir evenly at 50 rpm, add 1 / 3 of the total amount of ammonium persulfate, and slowly add acrylic mixed monomers dropwise, and control it within 1 hour The dropwise addition is completed within ~2 hours, and the acrylic mixed monomer is 8% by weight of butyl methacrylate, 20% of methyl methacrylate and 12% of methacrylic acid. Ammonium persulfate is regularly added during the dropping process, and the remaining ammonium persulfate is also added after the dropwise addition of the mixed monomers. After the reaction, cool, filter, wash and dry to obtain a solid resin powder. The main indicators are that the appearance is white powder, the solid content is >98%, the glass transition temperature is 95°C, and the acid value is 195mgKOH / g. Proportionally in another reaction kettle, first dissolve 20% water-based solid acrylic resin with 36% water, 20% ethanol, 4% ethanolamine, and...

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Abstract

A water ink based on the synthetic solid water acrylic resin is prepared through water-phase suspension copolymerizing reaction between acrylic acid monomer mixture and ammonium persulfate as trigger in water while stirring to obtain solid water acrylic resin, dissolving it in water, cosolvent, or amine, adding pigment, water and assistant, and grinding. Its advantages are high safety, adhesion and resistance to water and rubbing, not coloring, and low cost.

Description

technical field [0001] The invention belongs to printing ink and its production process, in particular to water-based printing ink and its production process. Background technique [0002] The liquid ink widely used in the packaging and printing industry currently uses toxic and harmful substances such as aromatic hydrocarbons, esters, and ketones as solvents, and the content of organic solvents in inks is generally 50% to 70%. Most of these solvents will volatilize during the printing process. A printing workshop with an ink consumption of 30 tons / year releases more than 20 tons of organic solvents into the atmosphere every year, which seriously pollutes the workshop and the atmosphere. The health of surrounding residents poses a serious threat. In addition, the ink stored in the workshop is a flammable and explosive substance, which is also a hidden danger to the safety of the factory. The residual solvent in the ink has a certain influence on the quality of the package ...

Claims

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Application Information

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IPC IPC(8): C09D11/10C09D11/107
Inventor 张爱国
Owner KUNMING YUEDUN INK SCI & TECH DEV
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