D - Textiles – Paper – 21 – F
Patent
D - Textiles, Paper
21
F
D21F 3/02 (2006.01)
Patent
CA 2435087
A nip press belt of a wet press or a calendar with at least one improved feature of elongated nip, in particular for a paper, cardboard or tissue machine provides a flexible carrier layer that is impermeable to liquids and is made of soft rubber having a hardness in the range between 20 and 50 P+J and an integrated textile reinforcement. A covering layer is fixedly connected to the carrier layer or formed together therewith. The carrier layer has a thickness in the range between 4 and 6 mm, and the covering layer has a thickness in the range between 2 and 6 mm. The covering layer is made substantially of soft rubber and has a hardness in the range between 20 and 50 P+J. 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 (9) de presse à sabot d'une presse humide (1) ou d'une calandre à interstice de serrage prolongé, notamment sur une machine à fabriquer du papier, du carton ou du papier de soie. Cette bande comporte une couche support (9a) souple et imperméable aux liquides en caoutchouc mou, présentant une dureté entre 20 et 50 P+J et doté d'un renforcement (9b) textile intégré, ainsi qu'une couche de protection (9c) associée de manière fixe ou intégrée à la couche support.
Gastle And Associates
Stowe Woodward Ag
LandOfFree
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