Cross directional gloss controller

Details Cross directional gloss controller Cross directional gloss controller

1987-06-15

1988-11-22

Lusignan, Michael

Coating processes

Vacuum utilized prior to or during coating

Organic base

34114, 118 68, 118101, 118117, 427361, B05D 312, B05C 1102

Patent

active

047865296

ABSTRACT:
A device for controlling the cross-directional gloss profile on the surface of a calenderable material by selectively directing jets of steam against sections of the material across its width. Built-in steam flow control valves are provided to control the amount of steam applied to each section. Suction means may also be provided to remove excess steam and thus prevent undesirable condensation on adjacent structures. The gloss finish may be monitored and compared to a desired gloss finish and the valves are activated accordingly.

REFERENCES:
patent: 3853604 (1974-12-01), Fleissner
patent: 4543737 (1985-10-01), Boissevain
patent: 4580355 (1986-04-01), Boissevain
Tappi Journal/Feb., 1986, "Process Control and Automation of Supercalenders by Hannu Malkia.

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