Nano waterborne ink binder and preparation method thereof

A technology of water-based ink and linking material, which is applied in ink, household utensils, applications, etc., can solve the problems of poor drying performance of water-based ink linking material and inability to use high-speed printing, etc., to achieve easy operation, improve poor drying performance, and high solid content. Effect

Active Publication Date: 2012-11-21
蚌埠金黄山凹版印刷有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a kind of particle whose average diameter reaches nanometer level, has fast drying performance, can guarantee high-speed printing quality, solid Nano water-based ink binder with high content and low viscosity, and a preparation method of nano water-based ink binder with simple process and convenient operation

Method used

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  • Nano waterborne ink binder and preparation method thereof
  • Nano waterborne ink binder and preparation method thereof
  • Nano waterborne ink binder and preparation method thereof

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preparation example Construction

[0031] A kind of preparation method of above-mentioned nano water-based ink linking material: specifically comprise the steps:

[0032] a. Heat isophorone diisocyanate and polypropylene glycol to 80~90°C and stir for 2~3 hours, add catalyst dibutyltin dilaurate and continue to stir for 20min~50min to react; during the reaction, detect the remaining amount of isocyanate group, When the detected remaining amount reaches the theoretical value, the temperature of the reaction solution is lowered;

[0033] The detection of the remaining amount of isocyanate groups is as follows: using di-n-butylamine titration to detect the isocyanate groups in the reaction solution.

[0034] Described di-n-butylamine titration comprises the following steps:

[0035] A) Prepare di-n-butylamine solution, add the sample taken from the reaction solution into anhydrous toluene; then add di-n-butylamine solution and mix well and let it stand for 20~30min;

[0036] B) Add isopropanol and bromocresol gree...

Embodiment 1

[0054] Embodiment 1, a kind of nano water-based ink link material, adopts the raw material of parts by weight in table 1:

[0055] Table 1 Nano water-based ink link material raw material ratio table

[0056]

[0057] Preparation:

[0058] a. Dry PPG-2000 in a drying oven at 120°C and 0.04Mpa vacuum for 1 hour, after the drying is completed. Add IPDI and PPG-2000 into a clean four-neck flask with reflux condenser, thermometer and stirring device, put the flask into a constant temperature water bath at 85°C, stir for 2 hours, add 0.1‰ catalyst, and react for 30 minutes , so that the reaction between IPDI and PPG-2000 is sufficient;

[0059] During the reaction process, a 3g sample was weighed from the reaction solution, placed in a clean Erlenmeyer flask, and the remaining amount of isocyanate group (-NCO) in the reaction solution was detected by di-n-butylamine titration. When the amount of -NCO in the sample reached the theoretical value, the temperature began to drop. ...

Embodiment 2

[0072] Embodiment 2, a kind of nano water-based ink linking material, adopts the raw material of parts by weight in table 1:

[0073] Table 2 Nano water-based ink link material raw material ratio table

[0074]

[0075] Preparation:

[0076] a. Dry PPG-2000 in a drying oven at 120°C and 0.04Mpa vacuum for 1 hour, after the drying is completed. Add IPDI and PPG-2000 into a clean four-neck flask with reflux condenser, thermometer and stirring device, put the flask into a constant temperature water bath at 80°C, stir and react for 2.5 hours, then add 0.26‰ catalyst and react for 20 minutes , so that the reaction between IPDI and PPG-2000 is sufficient;

[0077] During the reaction process, a 3g sample was weighed from the reaction solution, placed in a clean Erlenmeyer flask, and the remaining amount of isocyanate group (-NCO) in the reaction solution was detected by di-n-butylamine titration. When the amount of -NCO in the sample reached the theoretical value, the temperat...

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Abstract

The invention discloses a nano waterborne ink binder and a preparation method thereof. The nano waterborne ink binder comprises isophorone diisocyanate, polypropylene glycol, hydrophilic chain extender, 1, 4-butanediol, triethylamine, deionized water, N-methyl pyrrolidone, dibutyltin dilaurate and acetone. The preparation method includes: heating the isophorone diisocyanate and the polypropylene glycol to react with the dibutyltin dilaurate; adding the hydrophilic chain extender for reaction, cooling and adding ethylenediamine dissolved in cosolvent; adding 1, 4-butanediol dissolved in equivalent acetone for reaction, dissolving the triethylamine in the deionized water and dropping into the reaction solution under high-speed stirring, adding alkali for adjustment, and performing reduced pressure distillation to obtain the nano waterborne ink binder. Fineness of the nano waterborne ink binder is nanometer scale. The nano waterborne ink binder is high in solid content, low in viscosity, and fine in standing stability, centrifugal stability and thermal stability. The preparation method is simple and convenient to operate.

Description

technical field [0001] The invention belongs to the technical field of water-based ink, and relates to a nanometer water-based ink connecting material and a preparation method. Background technique [0002] With the rapid development of the printing industry, more and more attention has been paid to the environmental protection of inks, and the performance requirements of inks are also getting higher and higher, such as low temperature performance, high gloss, water resistance, heat resistance, and printing adaptability in extreme environments. Sex, etc., at present, water-based inks are mostly used to replace the previous solvent-based inks. [0003] As the "heart" of the ink, the binder plays a vital role in the water-based ink. It is the base material of the ground toner in the ink manufacturing, the main mobile phase and the film-forming substance after the ink is dried, which directly determines the ink. Use properties and printing effects, such as viscosity, adhesion,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G18/66C08G18/48C08G18/34C08G18/32C08G18/10C09D11/10C09D11/102
Inventor 吴杰方长青周星焦杰明孙素梅
Owner 蚌埠金黄山凹版印刷有限公司
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