Pigment printing is to use the film formation of adhesives to bind insoluble dyes to the fabric, so as to achieve the purpose of coloring.
Binder is the main element of the pigment printing paste, is a kind of high polymer film-forming material, through the film coating adhesion on the fabric, so request sticky agent for fabric have training of adhesion and reproducibility, described, solvent resistance, resistance to acid and alkali resistance, resistance to chemicals, film-forming clear transparent, don't change color, not injury fiber after printing, have certain elasticity, feel is good, and easy to remove from the printing machine.
Thickener is another important component of pigment printing paste, which can thicken color dyeing, promote bonding and emulsification, etc. Not only can improve the amount of color and fresh, and printing pulp without or with less kerosene. There are two kinds of synthetic thickener: anionic type and non-ionic type. The former has strong adaptability and can be used for dyeing prevention and dyeing printing, but the thickening effect is poor. The latter has high viscosity and thickening effect, and has no bad effect on the color freshness, scrubbing fastness and soft hand feel of printed fabrics.
The main function of crosslinkers is to improve the binding ability of the adhesive. Printing has good firmness and can reduce the curing temperature. Combined with the actual short curing time, the amount of crosslinkers should be appropriate, otherwise the fabric will feel bad.
Emulsifier is added in order to obtain a good emulsifying and thickening agent. Alkylphenol polyoxyethylene ether, which is closed by end group, and isocyanate is closed by end group. Pigment printing agents and softener, diffuser and defoaming agent.