Polyethylene terephthalate resin-coated metal plate of high processability

摘要

The present invention produces a polyethylene terephthalate resin covered metal sheet having extremely excellent formability, which can be available for uses in which severe forming is practiced such as drawing, drawing and ironing and drawn and stretch forming as well as the composite forming consisting of drawn and stretch forming followed by ironing. ÄMeans for attaining objectiveÜ A biaxially oriented film consisting of polyethylene terephthalate resin having a low temperature crystallization temperature ranging from 130 to 165 DEG C is covered at least on one side of a metal sheet by heat bonding in the way that the biaxial orientation of the film of the polyethylene terephthalate resin after being covered is gradually increasing from the contacting portion of the film to the metal sheet to the surface portion of the film.