Base sheets for printing with reactive dyes

Claim 1

A base sheet formed of material selected from the group consisting of paper, metal and plastic, suitable for use as a receptor sheet in a printing process employing a carrying sheet containing an alcoholic solution of a basic reactive dye, said base sheet being provided on at least one of its surfaces with a reactive pigment coating having a pH value of about 5 to 8 and, an alcohol resistance as determined by the alcohol drop test which is 50 to 70% of the reference value on a glass plate comprising an intimate mixture of (a) two absorbent pigments of different absorption values, one pigment being highly absorbent and having an absorption coefficient, determined according to ASTM 281-31 of about 100 to 160 g./100 g., the other pigment being sparingly absorbent and having an absorption coefficient determined according to said ASTM 281-31 of about 40 to 60 g./100 g., said pigments being present in amounts of from about 30 to 80% of said highly absorbent pigment to about 70 to 20% of said sparingly absorbent pigment: and (b) two binders of different solubilities, one binder being solvent-resistant and the other binder being alcohol-soluble, said binders being present in amounts of from about 50 to 80% of said solvent-resistant binder to about 50 to 20% of said alcohol-soluble binder.