Patent Number: 7,709,075

Title: Internal material of sole, shoe insole and boot

Abstract: A web comprising a matrix fiber containing a non-elastic polyester based short fiber and an elastic composite fiber which is made of a thermoplastic elastomer having a melting point of at least 40.degree. C. lower than a melting point of a polyester polymer constituting the short fiber and a non-elastic polyester, with the former being at least exposed on a surface of the fiber, and optionally a hygroscopic and exothermic fiber is heat molded such that the fibers are aligned in a thickness direction thereof, thereby obtaining a mat layer, onto which is then stuck a surface skin material to form an internal material of shoe, and a shoe insole and a boot are obtained by using the internal material of shoe.

Inventors: Suzuki; Atsushi (Osaka, JP)

Assignee: Teijin Fibers Limited

International Classification: B32B 5/08 (20060101); A43B 13/00 (20060101); A43B 13/12 (20060101); D04H 11/04 (20060101); B32B 27/12 (20060101)

Expiration Date: 5/04/12018