Coating processes – With post-treatment of coating or coating material – Solid treating member or material contacts coating
Patent
1991-06-06
1993-06-15
Lusigan, Michael
Coating processes
With post-treatment of coating or coating material
Solid treating member or material contacts coating
1525651, 118104, 118261, B05C 1104, B05D 312
Patent
active
052196186
ABSTRACT:
In the paper coating operation a wet or dry edge from coating composition is formed on the, seen in the direction of movement of the paper web, downstream side of the doctor, the so-called stalagmite formation. This stalagmite formation leads to various problems in the papermaking process and especially occurs at high speeds of the paper web and/or a high solids content of the coating composition, which two operating conditions are exactly required to obtain a maximum paper yield and a high paper quality. According to the invention the stalagmite formation is effectively prevented by supplying a fluid inhibiting the stalagmite formation to an area bounded, on the one hand, by the paper web and, on the other hand, by the above side of the doctor blade.
REFERENCES:
patent: 1317100 (1919-09-01), Plant
patent: 3152918 (1964-10-01), Kraus
patent: 3166464 (1965-01-01), Eolkin
patent: 3450092 (1969-06-01), Kock
patent: 3477870 (1969-11-01), Boretti et al.
patent: 3756195 (1973-09-01), Mercier
patent: 4909181 (1990-03-01), Smith
patent: 4945584 (1990-08-01), Nicola, Jr. et al.
TAPPI Proceedings, 1990 Coating Conference, pp. 347-351, "New Developments in a Coating CD Profile Control" by Dr. H. P. Sollinger.
TAPPI Journal, May 1987, pp. 91-94, "The Implications of Viscoelasticity on Coating Rheology and Structure" by G. Engstrom and M. Rigdahl.
Wochenblatt fur Papierfabrikation 9, 1991, pp. 331-342 and partial English translation.
Bareford Katherine A.
KNP Papier B.V.
Lusigan Michael
LandOfFree
Method and apparatus for preventing stalagmite formation in a pa does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for preventing stalagmite formation in a pa, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for preventing stalagmite formation in a pa will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1041128