D - Textiles – Paper – 21 – F
Patent
D - Textiles, Paper
21
F
D21F 3/02 (2006.01) D21G 1/00 (2006.01)
Patent
CA 2434776
A nip press belt of a wet press or a calender with at least one improved feature of sliding properties, impermeability of the belt to liquid, reduced leaching properties of the belt and/or elasticity and flexibility characteristics of the belt with having an elongated nip, in particular for a paper, cardboard or tissue machine, with a flexible elastomer layer that is impermeable to liquids and with a textile reinforcing layer, is characterized in that the elastomer layer has soft rubber with a hardness in the range between 5 and 100 P+J; and is further characterized in that in a three-point bending test of a specimen of the nip press belt 30 mm wide and 5 mm thick, set onto two supports 100 mm apart, the force that must be exerted to produce a deflection of 15 mm is 17 N or less and the associated bending stress is 110 N/cm2 or less.
L'invention concerne une bande presse à patin appartenant à une presse humide ou à une calandre, présentant une zone de pincement, en particulier pour machine à papier, machine à carton ou machine à papier-tissu, comprenant une couche élastomère flexible, imperméable au liquide, et une couche de renfort textile, caractérisée en ce que la couche élastomère renferme du caoutchouc souple, d'une dureté comprise entre 5 et 100 P+J.
Gastle And Associates
Stowe Woodward Ag
LandOfFree
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