THERMOPLASTIC SYNTHETIC RESIN BAND AND METHOD FOR PRODUCING THE SAME

摘要

A method for producing a thermoplastic synthetic resin band (1) is disclosed wherein the front and back surfaces of a thermoplastic synthetic resin base (10) are provided with a number of mutually obliquely crossing parallel ridges (1a) of a given width and a number of diamond-shaped recesses (1b) having a given area defined by the parallel ridges (1a) by passing the thermoplastic synthetic resin base (10) between a pair of embossing rolls (2, 2) whose peripheral surfaces are provided with mutually obliquely crossing parallel grooves (2a) of a given width and a number of diamond-shaped raised sections (2b) defined by the parallel grooves (2a). In this connection, there are used such embossing rolls (2, 2) wherein the grooves (2a) are so formed as to have a peripheral crossing angle of 15-30 degrees without changing the width of the grooves (2a) or the area of the raised sections (2b). With this method, there can be obtained a thermoplastic synthetic resin band (1) in which the longitudinal crossing angle (a) of the ridges (1a) is 15-30 degrees.