DE2731418

Acceptor sheets for carbonless copying are prepared by coating a suitable substrate with an aqueous composition which, in addition to known dispersed acceptor materials, such as acid treated clays, contains at least one basic zinc salt substantially insoluble in water in an amount, as ZnO, of 2 to 5...

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Bibliographic Details
Main Authors RIECKE, KURT. DR., 4152 KEMPEN, LAND, FERDINAND, 4060 VIERSEN
Format Patent
LanguageEnglish
Published 16.08.1979
Edition2
Subjects
CHEMISTRY
COLOUR PRINTING
COMPOSITIONS BASED THEREON
LINING MACHINES
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
PRINTING
PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES
STAMPS
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
TYPEWRITERS
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
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Summary:Acceptor sheets for carbonless copying are prepared by coating a suitable substrate with an aqueous composition which, in addition to known dispersed acceptor materials, such as acid treated clays, contains at least one basic zinc salt substantially insoluble in water in an amount, as ZnO, of 2 to 50% by weight of the acceptor pigments on a dry basis, the composition having a pH below 7.
Bibliography:Application Number: DE19772731418