Glossary:Block Fuse

Specially prepared interlining for shirt collars. It is bonded or fused to the two outer plies of the collar by the application of solvents, heat and pressure. There are two methods bonding generally used. In the wet process, an interlining made of cotton interwoven with acetate yarn is fused to the two outer plies of the collar by the application of an acetone base solvent, which plasticizes the acetate fibers, plus heat and pressure. In the dry process a cotton interlining is coated with acetate cellulose film, which is softened by steam and heat, and under pressure it becomes a bond between the cotton interlining and the two outer plies.