HEAT-SENSITIVE COATING COMPOSITION FOR THERMOGRAPHIC PAPERS

摘要

P HEAT-SENSITIVE COATING COMPOSITION FOR THERMO-SENSITIVE RECORDING OR PRINTING MATERIAL FOR THERMOGRAPHIC DEVICES. / P P THE COMPOSITION COMPRISES COLOR-GENERATING QUANTITY OF A 3.3 DERIVATIVE -BISARYLPHTALANE FINE-DIVIDED SOLID CHROMOGENIC BASIC, AND A COLOR-REVELATING QUANTITY OF A FINALLY DIVIDED SOLID PHENOL DERIVATIVE WHICH, AT THE TEMPERATURE OF THERMAL PRINTING, IS AT LEAST PARTIALLY FLUIDIZABLE AND IS CAPABLE OF A COLOR-GENERATING REACTION WITH THE CHROMOGENIC 3,3-BISARYLPHTALANE DERIVATIVE, COMPOSED IN A CARRIER COMPOSITION COMPRISING A SUBSTANTIALLY SOLUBLE ANIONIC POLYSACCHARIDE GUM IN A WATER AND A QUANTITY, SUITABLE FOR INCREASING STABILITY, OF SUCROSE BENZOATE. / P P MANUFACTURING OF COPY AND REPORT PAPERS. / P