Film applicator system

Details Film applicator system Film applicator system

B - Operations, Transporting

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B05C 1/08 (2006.01) B05C 1/04 (2006.01) B05C 11/04 (2006.01) B05D 1/00 (2006.01) B24D 9/04 (2006.01) B65H 81/02 (2006.01) D21F 3/00 (2006.01) F16C 13/00 (2006.01)

Patent

CA 1196181

ABSTRACT OF THE DISCLOSURE Starch solution is applied to the surface of a paper sheet web by means of a two roll press and a coating apparatus for each roll. The web is passed between the two rolls beginning at an entry nip where starch film coated on each roll surface is pressed against both sides of the web for penetration thereinto. The coating apparatus comprises a starch applicator for supplying a large excess of starch to the outer surface of the roll and an adjustable doctor blade means for metering a starch film on the roll surface for passage to the nip. The starch applicator may take the form of a fountain or applicator roll arrangement. This system permits coating at high web speeds of 3,000 to 4,000 feet per minute and permits a treatment starch solution to be of low- solids and low-viscosity as is desirable.

404018

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