CUSHION MATERIAL AND METHOD FOR PREPARATION THEREOF

摘要

The cushion material according to the invention is prepared by mixing (A) polyester fibers having a fineness of 4 to 30 denier and a cut length of 25 to 150 mm with (B) core-sheath type conjugated fibers having a fineness of 2 to 20 denier and a cut length of 25 to 76 mm in a weight ratio of 95 SIMILAR 40 : 5 SIMILAR 60, the sheath component of said conjugated fibers having a melting point lower than that of the core component of said conjugated fibers and said polyester fibers with a difference of 30 DEG C or more. In the cushion material, cubically and continuously interconnected portions of the fibers are adhered by fusion of the sheath portion of the above core-sheath type conjugated fibers. The cushion material having a thickness of 10cm or more and a good quality can be stably prepared by combining far-infrared ray or hot air flow heating and steaming in the heat-treatment.