Dyeing and printing of paints are simple and technologically simple, energy-saving and non-wastewater-friendly. They are environmentally friendly and have the advantages of being attractive and attractive. The performance of adhesives is the decisive factor in determining the final quality of paints and printings. Application properties of printing adhesives, especially
It is dry and wet rubbing fastness. The common method is to introduce cross-linking monomer N-methylol acrylamide to participate in the copolymerization reaction in the process of adhesive synthesis, but it needs high-temperature baking, and it is easy to release to the environment and Human harmful free formaldehyde. It has also been studied to replace the cross-linking monomer N-methylol acrylamide with epoxy groups introduced by epichlorohydrin to synthesize a formaldehyde-free printing adhesive, but the introduction of epoxy groups is often also harmful to the environment. Absorb organic chlorine. Therefore, low-temperature formaldehyde-free adhesive is our research direction.
The purpose of this experiment is to develop a low temperature formaldehyde-free adhesive to reduce the baking temperature to 100cC or even lower, and the printing paste is not blocked, the adhesive is kept at a high temperature without stickiness, and the low temperature does not become hard. Characteristics: The dry and wet rubbing fastness of printed fabrics meets the national standard. The softness of the hand-feeled fabrics and the large amount of color can meet the requirements of paint printing, thus saving energy, reducing costs, and making paint printing more widely applicable. Therefore, we studied the synthesis of a low-temperature formaldehyde-free adhesive using acrylic ester as the basic raw material, soft component as core, and hard component as shell core-shell emulsion polymerization method, and applied it to coating printing, and strive to From the technical aspects to solve its use after the fastness and feel and other issues.
Source: China Washing & Dyeing Industry Information Center