METHOD FOR MOLDING RESIN FILM OR THE LIKE

PROBLEM TO BE SOLVED: To effectively prevent occurrence of a molding fault and to improve smoothness of a surface of a molding roll, a resin film or the like by activating an oligomer, an additive or the like precipitated on the surface together, and liquefying the surfaces of the both, thereby cont...

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Bibliographische Detailangaben
1. Verfasser:	TAWARA SEIJI
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 MAKING GRANULES OR PREFORMS PERFORMING OPERATIONS PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS 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 effectively prevent occurrence of a molding fault and to improve smoothness of a surface of a molding roll, a resin film or the like by activating an oligomer, an additive or the like precipitated on the surface together, and liquefying the surfaces of the both, thereby continuously and uniformly bringing the roll into close contact with the film or the like while improving productivity. SOLUTION: The method for molding a film of a thermoplastic resin or a resin film or the like of a sheet by molding rolls comprises the steps of emitting an ultraviolet or infrared ray to surfaces of the molding rolls and resin film or the like immediately before the film 1 or the like 1 is brought into contact with the rotating rolls 2, 3, thereby activating the rolls and the film or the like, and continuously and uniformly bringing the rolls 1, 3 into close contact with the film or the like.