METHOD OF MANUFACTURING STRETCHED THERMOPLASTIC RESIN SHEET

PROBLEM TO BE SOLVED: To provide a method of manufacturing a stretched thermoplastic resin sheet for manufacturing the stretched thermoplastic resin sheet having an approximately uniform stretching ratio in the thickness direction and no irregularity. SOLUTION: In the method of manufacturing the str...

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Bibliographische Detailangaben
Hauptverfasser:	YAGI KOSEI, OGASAWARA SHIGERU, NAKAMURA AKIRA
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES 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
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a method of manufacturing a stretched thermoplastic resin sheet for manufacturing the stretched thermoplastic resin sheet having an approximately uniform stretching ratio in the thickness direction and no irregularity. SOLUTION: In the method of manufacturing the stretched thermoplastic resin sheet, a thermoplastic resin sheet A is drawn and stretched through a pair of drawing rolls 1a, 1b. In the method of manufacturing the stretched thermoplastic resin sheet, front side support members 2a, 2b are disposed at the front side of the drawing rolls 1a, 1b, rear side support members 3a, 3b are disposed at the rear side of the drawing rolls 1a, 1b, and the thermoplastic resin sheet A between the front and rear support members 2a, 2b, 3a, 3b are supported by the front rear support members 2a, 2b, 3a, 3b so that the intermediate surface A1 in the thickness direction may be positioned on the same plane surface. COPYRIGHT: (C)2011,JPO&INPIT