Oily residue on DTF film usually comes from trapped moisture, whether from glycerin in white ink, incomplete curing, high humidity, or ink oversaturation. This guide explains the five causes behind greasy DTF transfers, how to fix film that already shows oily spots, and the curing, humidity, and consumable changes that prevent it from happening again in your DTF print shop.

Curing DTF powder correctly requires heating adhesive powder to 320-350°F for 60 seconds to 3 minutes until it melts into a matte, cross-linked layer. This guide covers heat press and oven curing steps, automated powder shakers for batch production, visual cues for a proper cure, and common mistakes that cause cracking or peeling.