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Biodegradable green printing ink and preparation method thereof

A printing ink and biodegradation technology, applied in the field of printing ink, can solve the problems of environmental hazards, simple gelation process, poor degradability, etc., and achieve the effect of reducing the turbidity of impurities and improving the degradation rate

Inactive Publication Date: 2021-09-07
陆济林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, additives such as organic solvents and additives contained in printing inks have certain environmental hazards, and the degradability is poor after being buried in soil.
At present, the composition and ratio of the existing printing inks are not perfect, and the gelation process is simple, which leads to excessive turbidity of the printing ink generated, thereby reducing the molding quality of the printing ink, and the degradability of the ink is still to be determined. improve

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] First, put the polyurethane into the reaction vat, after heating, stir and mix at 80-110°C to make the polyurethane and water completely mix, add sodium bisulfate to the reaction vat and stir and mix, after complete mixing, inject it into the dynamic mixer through the metering pump Stir and mix with the treated polyurethane, and then mix uniformly with a static mixer to obtain modified polyurethane; then, add propylene carbonate to the reaction vat, then add 98% ethanol aqueous solution, and add a pH regulator to adjust the pH The value is 4-5, then add tetraethoxysilane and vinylmagnesium bromide, after ultrasonic dispersion, add 120 ℃ water bath to heat and magnetically stir for 4.5h, after the reaction, the product is washed, dried and filtered to obtain the first product, Stir the first product in the stirring tank for more than 2.5 hours, then grind it through a rubber mill, enter the cross-linking tank for 7-8 hours, and obtain modified titanium dioxide; then, prep...

Embodiment 2

[0028] First, put the polyurethane into the reaction vat, after heating, stir and mix at 80-110°C to make the polyurethane and water completely mix, add sodium bisulfate to the reaction vat and stir and mix, after complete mixing, inject it into the dynamic mixer through the metering pump Stir and mix with the treated polyurethane, and then mix uniformly with a static mixer to obtain modified polyurethane; then, add propylene carbonate to the reaction vat, then add 98% ethanol aqueous solution, and add a pH regulator to adjust the pH The value is 4-5, then add tetraethoxysilane and vinylmagnesium bromide, after ultrasonic dispersion, add 120 ℃ water bath to heat and magnetically stir for 4.5h, after the reaction, the product is washed, dried and filtered to obtain the first product, Stir the first product in the stirring tank for more than 2.5 hours, then grind it through a rubber mill, enter the cross-linking tank for 7-8 hours, and obtain modified titanium dioxide; then, prep...

Embodiment 3

[0030] First, put the polyurethane into the reaction vat, after heating, stir and mix at 80-110°C to make the polyurethane and water completely mix, add sodium bisulfate to the reaction vat and stir and mix, after complete mixing, inject it into the dynamic mixer through the metering pump Stir and mix with the treated polyurethane, and then mix uniformly with a static mixer to obtain modified polyurethane; then, add propylene carbonate to the reaction vat, then add 98% ethanol aqueous solution, and add a pH regulator to adjust the pH The value is 4-5, then add tetraethoxysilane and vinylmagnesium bromide, after ultrasonic dispersion, add 120 ℃ water bath to heat and magnetically stir for 4.5h, after the reaction, the product is washed, dried and filtered to obtain the first product, Stir the first product in the stirring tank for more than 2.5 hours, then grind it through a rubber mill, enter the cross-linking tank for 7-8 hours, and obtain modified titanium dioxide; then, prep...

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Abstract

The invention discloses biodegradable green printing ink and a preparation method thereof.The biodegradable green printing ink is prepared from, by weight, polylactic acid, linseed oil, rosin, polypropylene carbonate, modified polyurethane, modified titanium dioxide, an auxiliary preparation and an organic solvent. According to the printing ink, the turbidity of impurities in the printing ink is reduced by addition of themodified polyurethane and the modified titanium dioxide , the degradation rate is increased, and the problems that the forming quality of the printing ink is reduced and the degradability of the printing ink needs to be improved due to excessive residual turbidity of the generated printing ink impurities caused by incomplete composition and proportion of components and simple gelation process of the current and existing printing ink are solved. And the modified polyurethane and the modified titanium dioxide are matched to achieve a synergistic effect, so that the effect of adding one to more than two is achieved.

Description

technical field [0001] The invention relates to a printing ink, in particular to a biodegradable green printing ink and a preparation method thereof. Background technique [0002] With the progress of the printing industry, printing is favored by domestic and foreign printing manufacturers for its unique advantages, such as fast and convenient plate making, low cost, high printing quality, wide range of paper use, and large printing quantity shrinkability. extensive development. [0003] In the prior art, printing ink is mainly composed of colored pigments (dyes, etc.), binders, fillers and additives. When preparing, it is mixed and stirred according to the requirements of printing according to a certain proportion, and is rolled and rolled. production. However, additives such as organic solvents and auxiliaries contained in printing inks have certain environmental hazards, and their degradability is poor after being buried in soil. At present, the composition and ratio o...

Claims

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Application Information

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IPC IPC(8): C09D11/102C09D11/03C09D11/104C09D11/06
CPCC09D11/102C09D11/03C09D11/104C09D11/06
Inventor 陆济林
Owner 陆济林
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