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Abstract

A method for manufacturing a thermoplastic synthetic resin band 1 according to the present invention includes passing a thermoplastic synthetic resin base material 10 between a pair of embossing rolls 2, on whose outer surface parallel concave grooves 2a of a constant width, which cross each other obliquely, and a plurality of rhombus-shaped convex portions 2b, which are partitioned with a constant surface area by the parallel concave grooves 2a, are formed, and forming, on a front and a back side of the thermoplastic synthetic resin base material 10, a plurality of parallel convex stripes 1a of a constant width, which cross each other obliquely, and a plurality of rhombus-shaped concave grooves 1b, partitioned with a constant surface area by the parallel convex stripes 1a. Embossing rolls 2 are used, wherein only an intersection angle in circumferential direction of the concave grooves 2a is set to 15 to 30.degree., without changing the width of the concave grooves 2a or the surface area of rhombus-shaped convex portions 2b. With this manufacturing method, a thermoplastic synthetic resin band 1 can be achieved, wherein the intersection angle in longitudinal direction of the convex stripes 1a is set to 15 to 30.degree..

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First Claim