Yamauchi Corporation

Takamitsu Ozeki

Akira Yoshida

Shuhei Kouno

Shigeo Hoshino

A hot press cushioning material includes: a fiber material comprised of a multiplicity of randomly oriented fibers (); rubber () present in voids between the fibers () of the fiber material; and independent pores () dispersedly present in the rubber ().

Hot press cushioning material and production method thereof

A hot press cushioning material includes a base material layer that is in the form of a plate and that contains fibers; and an end face seal covering an outer end face of the base material layer. The end face seal includes a heat resistant elastic body having penetrated the outer end face of the base material layer and a heat resistant resin attached to an outer surface of the heat resistant elastic body.

Hot press cushioning material

A hot press cushioning material includes: a first nonwoven fabric forming an inner layer; and second nonwoven fabrics placed on both surfaces of the first nonwoven fabric and forming outer layers. Copolymerized para-aramid fibers having a basis weight of 80 to 400 g/mare used as a material of the second nonwoven fabrics. Fibers that are more rigid than the copolymerized para-aramid fibers are used as a material of the first nonwoven fabric. Each of the first nonwoven fabric and the second nonwoven fabrics has a heat resistant temperature of 270&#xb0; C. or more.

A hot press cushioning material () of the present invention includes, as a base material, a woven fabric layer () using bulky yarn () as at least one of the warp and weft, and a nonwoven fabric layer () placed on one surface side of the woven fabric layer (), a part of the nonwoven fabric layer () being embedded in the woven fabric layer (). A nonwoven fabric-resin composite layer () is formed in the opposite surface of the nonwoven fabric layer () from the woven fabric layer () by impregnation with resin (). A woven fabric-rubber composite layer () is formed in the other surface of the woven fabric layer () by impregnation with rubber (). The nonwoven fabric-resin composite layer () and the woven fabric-rubber composite layer () have voids () therein.

Hot press cushioning material and manufacturing method thereof

The cushioning-material surface layerincludes a resin layerdisposed on one side of the surface layerto cover the side thereof, a rubber layerdisposed on the other side of the surface layerto cover the side thereof, and a woven fabric layerdisposed between the resin layerand rubber layerand including bulked yarns for at least one of warp and weft. The woven fabric layerincludes a woven fabric-resin composite layerdisposed on the resin layerside and formed by impregnating part of the woven fabric with resin that forms the resin layer, and a woven fabric-rubber composite layerdisposed on the rubber layerside and formed by impregnating part of the woven fabric with rubber that forms the rubber layer. The woven fabric layerincludes intersticestherein.

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Osaka, Japan

Takamitsu Ozeki