In the textile printing and dyeing industry, printing thickening agents are a critical additive that significantly improve printing quality and enhance production efficiency. During the printing process, dyes typically require the addition of an appropriate amount of thickening agent to increase their viscosity and stability. The mechanism of action of printing thickening agents lies in their ability to adsorb onto the surfaces of dye particles through electrostatic interactions, causing them to aggregate and form larger particles, thereby achieving a thickening effect.Additionally, thickeners improve the flowability of printing inks, making them easier to handle during the printing process.
Functions of thickeners:
** they impart a certain viscosity and adhesion to the printing paste to ensure the clarity of the pattern contours;
** paste agents serve as dispersing media and diluents for dye chemicals, acting as carriers for dye transfer;
** they function as moisture absorbers, wetting agents, dye stabilizers, and protective colloids during steam treatment.