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Rapid drying screen clogging resistance composition for aqueous coating material screen printing, and preparation method thereof

A technology of screen printing and water-based paint, applied in dyeing method, textile and papermaking, etc., can solve the problems of affecting the printability of printing paint, thickening of printing paint, prolonging the drying time of imprinting, etc., to improve printing production efficiency, prevent The effect of blocking the net phenomenon and shortening the drying time

Active Publication Date: 2015-03-04
DONGGUAN CTL NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the introduction of the water-retaining anti-blocking agent, the drying time of the imprint is prolonged and the wet rubbing fastness is reduced. The final result is that the production efficiency and product quality are reduced; Disadvantages such as thick (back sticking) and easy skinning seriously affect the printability of printing coatings

Method used

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  • Rapid drying screen clogging resistance composition for aqueous coating material screen printing, and preparation method thereof
  • Rapid drying screen clogging resistance composition for aqueous coating material screen printing, and preparation method thereof
  • Rapid drying screen clogging resistance composition for aqueous coating material screen printing, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The synthesis of embodiment 1 water-soluble copolymer solution

[0027] Add 24.71g of acrylamide, 4.36g of acrylic acid and 461.2g of soft water into a 1000mL four-necked flask with stirring, start stirring, heat to 40°C, then add 10mL of 1.0% by mass ammonium persulfate aqueous solution, gradually Raise the temperature to 80°C, react at this temperature for 3 minutes, then add the mixed monomer solution consisting of 74.12g acrylamide, 13.08g acrylic acid and 147.7g soft water through the dropping funnel at a constant speed, and add it within 1 hour, and add it simultaneously and at a uniform speed 40mL of ammonium persulfate aqueous solution with a mass percentage of 1.0% was stirred and reacted at 80°C for 1 hour, and discharged while hot to obtain a water-soluble acrylamide-acrylic acid copolymer solution with a solid content of 15%. The viscosity (25°C ) 2.50×10 3 mPa·s, the mass composition ratio of the copolymer molecule is: acrylamide component 85%, acrylic a...

Embodiment 2

[0028] The synthesis of embodiment 2 water-soluble copolymer solution

[0029] In a stirred 1000mL four-neck flask, add 25.28g of acrylamide, 2.81g of acrylic acid and 418.5g of soft water, start stirring, heat to 40°C, then add 10mL of 0.95% by mass ammonium persulfate aqueous solution, gradually Raise the temperature to 84°C, react at this temperature for 3 minutes, and then uniformly add the mixed monomer solution consisting of 78.82g acrylamide, 8.42g acrylic acid and 168.0g soft water through the dropping funnel. 40mL 0.95% ammonium persulfate aqueous solution. Continue to stir and react at 84°C for 1 hour, discharge while hot to obtain a water-soluble acrylamide-acrylic acid copolymer aqueous solution with a solid content of 15%, viscosity (25°C) 2.45×10 3 mPa s. The mass composition ratio of the copolymer molecule is: 90% of the acrylamide component and 10% of the acrylic component.

Embodiment 3

[0030] The synthesis of embodiment 3 water-soluble copolymer solution

[0031] Add 21.81g of acrylamide, 7.27g of acrylic acid and 302.4g of soft water into a 1000mL four-necked flask with stirring, start stirring, heat to 45°C, then add 12mL of 0.90% by mass ammonium persulfate aqueous solution, gradually Raise the temperature to 75°C, react at this temperature for 5 minutes, and then uniformly add the mixed monomer solution consisting of 65.40g acrylamide, 21.81g acrylic acid and 110.8g soft water through the dropping funnel. 40mL 0.90% ammonium persulfate aqueous solution by mass. Then continue to stir and react at 75°C for 1 hour, discharge while hot to obtain a water-soluble acrylamide-acrylic acid copolymer aqueous solution with a solid content of 20%, viscosity (25°C) 8.23×10 3 mPa s. The mass composition ratio of the copolymer molecule is: 75.0% of acrylamide component and 25.0% of acrylic acid component.

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Abstract

The invention discloses a rapid drying screen clogging resistance composition for aqueous coating material screen printing. The composition mainly comprises, by weight, 6.5-32.5 parts of a water-soluble copolymer solution and 67.5-93.5 parts of a polyol. The composition has good compatibility with aqueous printing coating materials, and provides a better screen clogging resistance effect compared with the screen clogging resistance agent adopting the single material. With the composition, screen clogging phenomenon generated during an printing process can be effectively prevented without printing product quality affecting, printing performances of the printing coating material can be improved, a drying time of the blot can be significantly shortened, production energy consumption can be reduced, printing production efficiency can be significantly improved, problems of printing coating material after-thickening (after-tack), easy skinning and the like can not be caused, and good application prospects are provided. The invention further discloses a preparation method for the rapid drying screen clogging resistance composition for the aqueous coating material screen printing.

Description

technical field [0001] The invention belongs to the technical field of screen paint printing, and in particular relates to a quick-drying anti-blocking net composition for water-based paint screen printing and a preparation method thereof. Background technique [0002] Water-based printing paint does not contain organic solvents, is environmentally friendly, has good operability, rich and bright colors, and is cost-effective. It is widely and widely used for printing and finishing on textiles and other materials. In terms of technology, paint screen printing can be fully automatic machine printing or manual printing. There are many factors that affect the quality and efficiency of paint screen printing, and the printing paint condenses and dries on the screen during the printing process, causing screen blockage is one of the main reasons. This phenomenon is related to the composition and properties of the printing paint and the working environment such as temperature and re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/52D06P1/651C08F220/56C08F220/06
Inventor 卢开平廖凯荣苏飞洞麦友攀
Owner DONGGUAN CTL NEW MATERIAL TECH
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