Coating processes – Measuring – testing – or indicating
Patent
1989-01-27
1991-09-03
Beck, Shrive
Coating processes
Measuring, testing, or indicating
427366, 427361, 427377, 118665, 118117, B05D 312
Patent
active
050453424
ABSTRACT:
A gloss control system is provided for controlling the surface gloss of a sheet material. The system provides separate and independent control of heat and moisture applied to the sheet material, rather than the fixed ratio of heat and moisture applied by previous steam shower systems. Heat may be applied by a plurality of infrared lamps whose radiation is directed to the sheet material surface. A plurality of upwardly facing atomizing spray nozzles act to provide streams of atomized water directed at the surface of the sheet material. A scanning gloss sensor detects the degree of surface gloss of the sheet material at various cross-directional locations and control the application of heat and moisture in accordance with the detected surface gloss to thereby achieve a desired gloss profile.
REFERENCES:
patent: 2146281 (1939-02-01), Anderson
patent: 2291616 (1942-08-01), Fletcher
patent: 2565152 (1951-08-01), Wachter et al.
patent: 3338736 (1967-08-01), Ham
Boissevain Mathew G.
Charette Pierre
Ostiguy Fernand
Wallace Barclay W.
Bashore Alain
Beck Shrive
Measurex Corporation
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