Adhesion Polymer
Polymeric resin emulsion added to digital textile printing formulations locks insoluble pigment particles onto the surface of fabric fibres. A pigment ink binder forms a thin, transparent, and flexible film across the yarn structure during the heat-curing phase of finishing. This adhesive network prevents the pigment from being removed by mechanical abrasion or washing during subsequent use.
It represents a necessary component that enables the print to survive multiple laundry cycles without fading.
Curing Temperature
Curing of the resin occurs at temperatures between one hundred and fifty and one hundred and seventy degrees Celsius. This heat activation triggers cross-linking within the polymer chains to form a water-insoluble protective matrix. Insufficient curing temperatures lead to a weak film and low color fastness ratings.
Fastness Property
Crocking resistance describes the ability of the binder to withstand dry and wet rubbing action. A high-quality polymer formulation prevents the pigment particles from flaking off when the textile is subjected to friction. This resistance is evaluated using a standard crockmeter to measure color transfer to a white test cloth.
Handle Modification
Excessive amounts of the resin on the fabric can create a harsh feel or stiff drape. Balancing the binder concentration is essential for maintaining both wash durability and a soft garment handle. Industrial printers select resin grades that offer high adhesion with minimal film thickness.