LOESUNGSMITTEL FUER DAS CHROMOGENE FARBSTOFFVORLAEUFERMATERIAL EINES DRUCKEMPFINDLICHEN AUFZEICHNUNGSPAPIERBLATTS UND DRUCKEMPFINDLICHES AUFZEICHNUNGSPAPIERBLATT, HERGESTELLT UNTER VERWENDUNG DES LOESUNGSMITTELS

摘要

A substantially odourless solvent for use as a solvent for a chromogenic dye-precursor material for a pressure- sensitive recording paper sheet capable of use at low temperatures, which comprises from 0 to 20% by weight of m-isopropylbiphonyl, from 40 to 75% by weight of p-isopropylbiphenyl and from 5 to 40% by weight of diisopropyldphenyl, and a pressure-sensitive recording paper sheet comprising a colour-development sheet coated with microcapsules containing a dye solution which is composed of the chromogonic dye-precursor material and the substantially odorless solvent, and a colour-developer sheet.