A method and apparatus for coating a moving web with a coating fluid. The coating die has at least one feed slot for supplying the coating fluid to the moving web and a front face demarked from the at least one feed slot by a die edge. A guide mechanism guides the moving web in a first direction past the coating die such that a coating bead is formed in a gap between the moving web and the die edge. The spraying system sprays a cleaning fluid on at least a portion of the front face of the slide coating die such that the coating bead forms a substantially linear static wetting line on the front face of the coating die.
申请公布号
US5780109(A)
申请公布日期
1998.07.14
申请号
US19970784629
申请日期
1997.01.21
申请人
MINNESOTA MINING AND MANUFACTURING COMPANY
发明人
YAPEL, ROBERT A.;MILBOURN, THOMAS M.;BHAVE, APARNA V.;WALLACE, LAWRENCE B.;NORTON, DANIEL V.;IVERSON, HANS E.