METHOD OF MANUFACTURING THERMAL PLASTIC RESIN SHEET WITH PATTERN

• Main Authors: SUGIMURA YOSHIHIRO, TANAKA TATSU
• Format: Patent
• Language: English
• Published: 16.10.1989
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; PERFORMING OPERATIONS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

PURPOSE:To facilitate the manufacturing of a patterned sheet by a process wherein, upon making a melting thermoplastic resin into a pressed sheet by a cooling roll and a guide roll, a non-adhesive pattern forming sheet is inserted from the guide roll side and pressed so as to place it into close contact with an extruding sheet, afterwards, it is separated therefrom. CONSTITUTION:A melting thermoplastic resin 3 extruded from an extruding die 4 is press-held and cooled between a cooling roll 1 and a guide roll 2 so as to be made into a sheet. At this time, a sheet 5 formed with patterns is press-inserted as required from the side of the guide roll 2, and then pressed and brought into close contact with the sheet-shaped thermoplastic resin 3. In short, the resin at the side of a guide rail 2 is cooled in a state of being semi-melt and integrated with the patterned sheet 5. And the patterned thermoplastic sheet 6 and the pattern forming sheet 5 are separated. Consequently, the sheet 6 with various kinds of patterns can easily be manufactured by only replacing the pattern forming sheet 5.