METHOD OF PRODUCING THIN, DEEP-DRAWN CAN

摘要

This invention relates to a method of producing a thin, deep-drawn can, and comprises the steps of (i) applying a crystalline thermoplastic resin onto a metallic sheet, (ii) drawing the coated sheet by heating it to a temperature beyond the glass transition point (Tg) of the thermoplastic resin and (iii) redrawing the drawn cup by heating it to a temperature beyond the glass transition point (Tg) of the thermoplastic resin and drawing it again at a bending-stretching speed of at least 1 m/min. The method of the invention is characterized in that a deep-drawn can having remarkably improved corrosion resistance and heat resistance can be produced while remarkably reducing damage to the coating layer.