Pressing can be defined as a process which changes the geometric fibre structure of the area being pressed by the controlled application of heat, steam and pressure. In this sense, removing a crease from a garment involves the same change of fibre lay as that required to open a seam or to press a hem.
With very few exceptions, every type of product manufactured by the clothing industry is pressed either during or at the end of its assembly or at the end only. The exceptions are items of corsetry and under wear which, due e to the materials and construction, do not require any form of pressing.Regardless of the extent of pressing which garment undergo, pressing is a crucial process which imparts the final finish to a garment. A garment always has a greater hanger or package appeal if itis fresh looking and crisply pressed.