DEVELOPER FOR PRESSURE SENSITIVE RECORDING SHEET AND DEVELOPING SHEET

摘要

PURPOSE: To improve both a color developing speed and a color developing density by forming it of polyvalent metal salt of salicylic acid derivative and polyoxyalkylene fatty acid ester. ;CONSTITUTION: A developer for a pressure sensitive recording sheet is formed of polyvalent metal salt A of salicylic acid derivative such as zinc 3,5-di(α- methylbenzyl)salicilate and polyoxyalkylene/fatty acid ester B such as lauryl acid diester of polyoxyethyleneglycol. In this case, the number of carbons of the fatty acid of the ester B is 6-23, and mean molecular weight of the polyoxyalkylene is 100-10000. A ratio of the ester B to the salt A of the salycylic acid ester is 1-30wt.%. Both A, B are dispersed in water for use.;COPYRIGHT: (C)1994,JPO&Japio