Acrylate-containing elastic emulsion, preparation method thereof and compounded printing binder

Abstract

The invention discloses an acrylate-containing elastic emulsion, which comprises the following raw materials in parts by weight: 1.5 to 2.5 parts of emulsifier, 30 to 45 parts of acrylate, 1 to 5 parts of hydrophilic monomer, 0.5 to 3 parts of cross-linking monomer, 0.01 to 15 parts of vinyl monomer, 0.1 to 1 part of internal cross-linking accelerant, 0.2 to 0.4 parts of initiator and 35 to 50 parts of water. The elastic emulsion can be easily wiped away from a screen mesh by a wet cloth, and also can be completely washed by water, thereby improving the mesh-antifouling performance of a binder and the cleaning performance of the screen mesh. Meanwhile, the invention also discloses a method for preparing the acrylate-containing elastic emulsion, and the method has the advantages of environmental protection and low cost. In addition, the invention discloses a compounded printing binder prepared from the acrylate-containing elastic emulsion, and the prepared binder has the advantages of no mesh fouling, easy mesh washing, clear mesh dot, good elasticity, softness, drying, and excellent color fastness to rubbing and washing fastness, meets various environmental protection indexes, andadapts to various printings by manual bedplates, circular screen machines, and flat screen machines.

Description

technical field [0001] The invention relates to an acrylate-containing elastic emulsion, a preparation method thereof, and a compound printing glue prepared by using the above-mentioned acrylate-containing elastic emulsion, belonging to the technical field of printing and dyeing. Background technique [0002] Screen printing is a production process for printing on textiles instead of dyes. Because it does not produce waste water produced by rinsing during dye printing, it is a clean production process that is in the ascendant at home and abroad and encouraged by the state. Printing paste is the main raw material for screen printing. Because knitwear is soft and elastic, the main adhesive in the printing paste must be a soft elastomer, which feels comfortable, dry and not sticky or hard. Printing glue needs to use titanium dioxide and other organic pigments as colorants. In recent years, the European Union has put forward more and more stringent environmental protection in...

AI Technical Summary

Problems solved by technology

[0003] Acrylate emulsion is still the main variety of screen printing glue at home and abroad, but due to the shortcomings of the structure and performance of acrylate resin itself, it has become a technical difficulty for elastic and soft acrylic printing machine printing glue

Specifically, the better the elasticity and softness, the more soft monomers need to be added, and the more sticky the printed pattern will be; the more soft monomers, the higher the film-forming temperature of the adhesive, and the faster the film-forming will be. In the printing process, it is easy to form a film plug on the screen, and it is not easy to rinse off after the film is formed, which affects product quality and output; there are many soft monomers, emulsifiers, and improper selection of other additives, which also make the product's washing fastness and The color fastness to rubbing has dropped significantly. These technical problems have always restricted the development of glue printing technology from manual printing to mechanical printing.