Color Application
Surface printing applies insoluble color particles to a fabric using a synthetic binder that is cured with heat. In pigment printing, the color does not penetrate or chemically bond with the fibers. Instead, the binder acts as an adhesive that holds the pigment on the surface.
This method is suitable for all fiber types and blends.
Print Paste
The paste contains the pigment dispersion, the binder, and a thickener to control the flow. During pigment printing, the viscosity of the paste must be monitored to ensure sharp print outlines and prevent clogging of the screens. If the paste is too thin, the print will bleed and lose its detail.
The formulation must be adjusted according to the fabric structure and the screen mesh size.
Fabric Handle
A thick layer of binder can make the printed area feel stiff to the touch. This is why pigment printing is often limited to smaller designs or light fabrics where softness is required.
Curing Stage
Curing occurs at high temperatures in a stenter to polymerize the binder and fix the print. Without proper curing, the pigment printing will show poor wash fastness and will rub off easily. The temperature must be monitored across the entire width of the oven.
This is the final step in the printing line.
