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Modified rosin resin for aqueous ink thickener and preparation method thereof

A technology for modifying rosin and water-based inks, which is applied in the chemical modification and application of inks and natural resins. It can solve the problems of affecting the gloss and color development of water-based ink printing samples, high prices, and high costs, and achieves obvious thickening effects. The effect of sufficient market supply and good dispersion

Inactive Publication Date: 2016-10-26
GUANGDONG NANHAI ETETB TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyvinylpyrrolidone and polyurethane thickeners, on the one hand, are relatively expensive, which can easily lead to high costs; Thickeners are incompatible with acrylates, which can easily affect the gloss and color development of water-based ink printing samples

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Put 1000g of rosin into the reactor and heat it to 180°C until the rosin is completely melted into a liquid state, then start stirring;

[0022] Take 280g of maleic anhydride, put in 2.8 parts of maleic anhydride at one time, and react for half an hour; then divide the remaining maleic anhydride into five equal parts, throw one part every 20 minutes, serve the horse After all the anhydrides have been thrown, continue to react for 2.5 hours;

[0023] Weigh 200g of polyethylene glycol Mn~2000, 50g of polyethylene glycol Mn~1500, and 200g of polyethylene glycol Mn~4000, mix them evenly, divide them into ten equal parts, and then throw one part every 15min, Keep warm for 1.5 to 2.0 hours after completion;

[0024] Lower the temperature in the reactor to 140°C, put in 165g of monoethanolamine, 175g of triethanolamine and 225g of N,N-dimethylethanolamine, and stir for half an hour while cooling down;

[0025] The temperature in the reaction kettle was lowered to 105°C, then...

Embodiment 2

[0027] Put 1000g of rosin into the reactor and heat it to 180°C until the rosin is completely melted into a liquid state, then start stirring;

[0028] Take 280g of maleic anhydride, put in 2.8 parts of maleic anhydride at one time, and react for half an hour; then divide the remaining maleic anhydride into five equal parts, throw one part every 20 minutes, serve the horse After all the anhydrides have been thrown, continue to react for 2.5 hours;

[0029] Weigh 250g of polyethylene glycol Mn~2000 and 250g of polyethylene glycol Mn~4000, mix them evenly, divide them into ten equal parts, and then cast one part every 15 minutes, and keep warm for 1.5 to 2.0 hours after the casting is completed;

[0030] Lower the temperature in the reactor to 140°C, first add 150g of monoethanolamine and stir for half an hour while cooling down, then put in 380g of ammonia water with a mass concentration of 25%, and continue stirring for half an hour while cooling down;

[0031] Lower the temp...

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Abstract

The invention discloses a modified rosin resin for an aqueous ink thickener and a preparation method thereof. The method comprises: heating rosin to completely melt into a liquid; adding maleic anhydride, wherein maleic anhydride accounting for 8-12% of the total amount is added in one time, the remaining maleic anhydride is divided into five parts, and the five parts are added every 20 min; adding a long-chain polyol, wherein the long-chain polyol is divided into ten equal parts, and the ten parts are added every 15 min; reducing the temperature inside the reaction kettle to 140+ / -5 DEG C, adding a measured amount of an alkali, and continuously stirring for half an hour; and reducing the temperature inside the reaction kettle to 100+ / -5 DEG C, adding a measured amount of water, stirring for half an hour, cooling to a room temperature, and discharging the material. According to the present invention, the preparation is simple, the quality is reliable, and the modified rosin resin is widely used in a variety of water-based ink thickener modified rosin resins and the preparation method thereof.

Description

technical field [0001] The invention belongs to the technical field of polymer synthesis, and relates to a modified rosin resin used as a water-based ink thickener and a preparation method thereof. Background technique [0002] Thickener is an indispensable auxiliary agent in the preparation process of water-based ink. On the one hand, adding a thickener can improve the physical and chemical stability of the water-based ink; on the other hand, adding a thickener can improve the stability of the toner and filler in the water-based ink, ensuring the storage stability of the water-based ink. [0003] The water-based ink thickeners in the prior art mainly include: inorganic thickeners, organic thickeners and synthetic polymer thickeners. The thickening effect of inorganic thickeners is obvious, but during the printing process, the shear force generated by the continuous rotation of the printing roller will reduce the viscosity of the water-based ink during printing and affect t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/03C09F1/04
CPCC09D11/03C09F1/04
Inventor 颜永斌周虎
Owner GUANGDONG NANHAI ETETB TECH CO LTD
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