DEVICE AND METHOD FOR SURFACE PROCESSING WEBS OF PAPER AND SIMILAR ENDLESS NON-WOVENS BY MEANS OF A HEATABLE ROLLER

WIPO Patent Application WO2004015199

A3

A roller for thermal pressure treatment of web-type media such as paper or non-wovens, provided with an inner heating system and comprising a base body (1) made of hardened and tempered wrought steel or alloyed cast iron, an intermediate layer (2) applied to the surface thereof and a hard wearing layer (3) applied thereon. Peripheral bores (4) or canals extending parallel to the axis are arranged in the base body of the roller at a regular distance (5) from the surface, being distributed in a regular manner (8) on the circle formed about the roller axis. The materials used and the arrangement of the peripheral bores (4) are such that the roller can be used in calanders in a method wherein the surface temperatures of the roller exceed 140° C, the heating capacity is more than 35 kW/m<2>, operational speeds are more than 1200 m/min, line pressures are greater than 250 kN/m and the processed webs of material weigh more than 45 g/m<2> and have a degree of moisture of over 5 %.

JPS5374112	DEFORMATION CONTROLLABLE ROLL
WO/2012/143246	ROLLER AND CALENDER HAVING SAID ROLLER
JP3759192	METHOD FOR FITTING ROLL MANTLE OF TUBULAR ROLL INTENDED FOR PAPER MACHINE OR EQUIVALENT WITH GLIDE BEARING, AND TUBULAR ROLL THAT MAKES USE OF THE METHOD

ZAORALEK HEINZ-MICHAEL (DE)

PCT/DE2003/002581

July 29, 2004

July 31, 2003

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SHW CASTING TECHNOLOGIES GMBH (DE)
ZAORALEK HEINZ-MICHAEL (DE)

D21G1/02; (IPC1-7): D21G1/02

EP0710741A2	1996-05-08
US20010024723A1	2001-09-27

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