What is the process called that resembles a decal being transferred to compatible synthetic fabrics using heat and pressure?

The process known as transfer printing involves the use of heat and pressure to apply a design onto compatible synthetic fabrics. In this technique, a printed design is first created on a special transfer paper. When heat is applied, the inks on the paper sublimate, turning into gas that penetrates the fabric's fibers before solidifying, thereby permanently adhering the design to the fabric.

This method is particularly effective for synthetic materials, as their fibers allow for better uptake of sublimated dyes compared to natural fabrics. Transfer printing is widely used in the fashion and home decor industry for its ability to produce vibrant, complex designs that can cover large areas with relative ease. Additionally, because the transfer process allows for intricate detail and a wide color spectrum, it is often preferred for producing custom graphics and patterns.

In contrast, block printing, roller printing, and yarn dyeing techniques do not involve this specific mechanism of ink transfer through heat and pressure. Block printing uses carved blocks to manually stamp designs, roller printing applies patterns using engraved rollers, and yarn dyeing incorporates color into the yarn itself before weaving or knitting, affecting the fabric’s overall color rather than just applying surface designs.