The molding and curing of laminates at pressures no lower than 1000 p.s.i. and more commonly in the range of 1200 to 2000 p.s.i.
A method of marking plastics in which a special pigmented, dyed or metalized foil is pressed against the plastic article by means of a heated die, welding selected areas of the foil to the article. The term also includes the process of impressing inked type into the materials when the type is heated. Source: Whittington, Lloyd R. Whittington's Dictionary of Plastics (Stamford, CT: Technomic, 1968).