Sheet material for printing plate

A printing plate for flexographic or lithographic printing is made by coating an aluminium alloy or steel sheet with a polymer layer having an outer surface, coating the polymer layer with mineral or metal particles having an average particle size of less than about 30 microns, and with the polymer...

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Bibliographic Details
Main Authors NICKOLAS C KOTOW, EDWARD C ROBINSON, ROBERT E BOMBALSKI, MARK L WEAVER, JEAN ANN SKILES, THOMAS LEONARD LEVENDUSKY
Format Patent
LanguageEnglish
Published 18.03.1998
Edition6
Subjects
LAYERED PRODUCTS
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
LINING MACHINES
MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING,INKING, DAMPING, OR THE LIKE
PERFORMING OPERATIONS
PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
PRINTING
PRINTING PLATES OR FOILS
PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTINGSURFACES
STAMPS
TRANSPORTING
TYPEWRITERS
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Summary:A printing plate for flexographic or lithographic printing is made by coating an aluminium alloy or steel sheet with a polymer layer having an outer surface, coating the polymer layer with mineral or metal particles having an average particle size of less than about 30 microns, and with the polymer layer near its melting point, compressing the solid particles so that most of them are below the polymer layer outer surface. The solid particles are preferably alpha-alumina particles having an average size of 1-10 microns. The printing plate has improved wear resistance.
Bibliography:Application Number: GB19970019351