A textile component activated by heat, it is applied to the reverse side of fabrics to provide support, stability, and structure. This material, typically composed of a base fabric coated with adhesive dots or a continuous resin layer, bonds to the garment fabric when subjected to heat and pressure from an iron or fusing press. The result is a unified layer that enhances the drape, crispness, or durability of the primary fabric. For example, it is commonly used in collars, cuffs, and facings to maintain shape and prevent stretching.
The introduction of this heat-activated material significantly streamlined garment construction processes, reducing the need for extensive hand-sewing or traditional tailoring methods. It offers several advantages, including improved shape retention, enhanced fabric weight, and simplified application. Historically, tailors and dressmakers relied on canvas and other weighty materials for structure. The development of this product provided a lighter and more efficient alternative, leading to increased efficiency and design flexibility in the garment industry.