发明名称 SHOE PRESS BELT
摘要 A shoe press belt has both sides coated with a resin layer and one or both layer s with side edge portions softer than the middle portion of the resin layer. The h ardness of the side edge portions may first decrease stepwise laterally outwardly from t he middle portion to a section which overlies the edge of the shoe, and then increase step wise laterally outwardly to the edge of the belt. A first stepwise reduction in hardn ess may begin laterally inward of the edge of the wet paper sheet and extend laterally o utwardly to the edge of the wet paper sheet, where a second stepwise reduction begins tha t extends laterally outwardly beyond the edge of the shoe. Laterally outwardly of the seco nd reduction, a stepwise increase in hardness extends to the edge of the belt. Alte rnatively, each side edge portion may be of a single hardness, less than the hardness of th e middle portion, and each side edge portion overlies one of the side edges of the shoe.
申请公布号 CA2230565(A1) 申请公布日期 1998.10.24
申请号 CA19982230565 申请日期 1998.02.25
申请人 ICHIKAWA CO., LTD. 发明人 ISHINO, ATSUSHI
分类号 D21F7/08;D21F3/00;D21F3/02;(IPC1-7):D21F3/02;B30B9/20 主分类号 D21F7/08
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