D - Textiles – Paper – 21 – G
Patent
D - Textiles, Paper
21
G
92/1
D21G 1/00 (2006.01) D21F 7/00 (2006.01) D21G 7/00 (2006.01)
Patent
CA 2008733
An apparatus for controlling the cross-directional smoothness profile of the surface of a calenderable material substantially independently of the material's caliper profile. A plurality of adjustable nozzles selectively direct jets of steam of selected velocities against sections of the material across the material's width and in counterflow to its movement, immediately before the material enters the last nip of a calendar steak. Built-in steam control valves are provided to control the amount of steam applied to each section. Suction means may also be provided upstream of the nozzles, with reference to the movement of the calenderable material, to remove excess steam and thus prevent undesirable condensation on adjacent structures. The smoothness profile may be monitored and compared to a desired smoothness profile and the valves and nozzles may be adjusted accordingly.
Beaman Robert L.
Boissevain Mathew G.
Dudas Laslo
Taylor Bruce S.
Honeywell-Measurex Corporation
Measurex Corporation
Oyen Wiggs Green & Mutala Llp
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