METHOD FOR PRODUCING A THERMOPLASTIC POLYURETHANE BALL TEXTURE

摘要

A thermoplastic polyurethane is foamed by way of an added vesicant and is then extruded to provide a thermoplastic forming material. The thermoplastic forming material is roll pressed to provide an unfinished sheet, and a surface of the unfinished sheet is embossed for printing a predetermined drawing to provide an embossed sheet. The embossed sheet is cut to provide plural connecting sheets, and the partial overlapping of two adjacent connecting sheets is ultrasonically welded to provide a connected exterior. At least one groove is cut in the predetermined drawing surface of the exterior to provide a ball texture.

主权项

1. A method for producing a thermoplastic polyurethane ball texture comprising:
a heating and foaming step, in which a thermoplastic polyurethane is foamed by way of an added vesicant; an extruding step, in which the thermoplastic polyurethane is extruded to provide a thermoplastic forming material; a roll pressing step, in which the thermoplastic forming material is roll pressed to provide an intermediate unfinished sheet; an embossing step, in which a surface of the unfinished sheet is embossed for printing a predetermined drawing to provide an embossed sheet; a cutting step, in which the embossed sheet is cut into predetermined lengths to provide plural connecting sheets; a welding step, in which the partial overlapping region of two adjacent connecting sheets is ultrasonically welded together to provide a connected exterior; and a carving step, in which at least one groove is carved out in ultrasonic cutting of the predetermined drawing surface of the exterior to provide a ball texture.