Abstract 1. A HEAT-SENSITIVE TWO COLOR RECORDING PAPER WHICH HAS A LAYER OF A FIRST HEAT-SENSITIVE RECORDING MATERIAL PREPARED BY DISPERSING, AS DISCONTINUOUS PARTICLES INTO A FILMFORMING BINDER, A TRIPHENYLMETHANE OR FLUORAN TYPE NONCOLORED DYE BASE HAVING IN THE MOLECULE A REACTIVE COLORDEVELOPING COMPONENT OF THE LACTONE OR LACTAM TYPE, AND A PHENOLIC SUBSTANCE OR AN ORGANIC ACID, SAID LAYER DEVELOPING A COLOR AT THE TIME OF APPLICATION OF HEAT, BY FORMATION OF A COLOR-DEVELOPING SUBSTANCE, AND A LAYER OF A SECOND HEAT-SENSITIVE RECORDING MATERIAL CA VELOPING AT THE SAME TIME OF APPLICATION OF HEAT A COLOR DIFFERENT FROM THE COLOR OF THE AFORESAID FIRST LAYER, AND WHICH CONTAINS AS A DECOLORIZING AGENT FOR THE COLOR-DEVELOPING SUBSTANCE CONTAINED IN THE FIRST LAYER A THERMOFUSIBLE POLYETHER WHICH IS SUBSTANTIALLY SOLID AT NORMAL TEMPERATURE.
A HEAT-SENSITIVE TWO COLOR RECORDING PAPER WHICH HAS A LAYER OF A FIRST HEAT-SENSITIVE RECORDING MATERIAL PREPARED BY DISPERSING, AS DISCONTINUOUS PARTICLES INTO A FILMFORMING BINDER, A TRIPHENYLMETHANE OR FLUORAN TYPE NONCOLORED DYE BASE HAVING IN THE MOLECULE A REACTIVE COLORDEVELOPING COMPONENT OF THE LACTONE OR LACTAM TYPE, AND A PHENOLIC SUBSTANCE OR AN ORGANIC ACID, SAID LAYER DEVELOPING A COLOR AT THE TIME OF APPLICATION OF HEAT, BY FORMATION OF A COLOR-DEVELOPING SUBSTANCE, AND A LAYER OF A SECOND HEAT-SENSITIVE RECORDING MATERIAL CA VELOPING AT THE SAME TIME OF APPLICATION OF HEAT A COLOR DIFFERENT FROM THE COLOR OF THE AFORESAID FIRST LAYER, AND WHICH CONTAINS AS A DECOLORIZING AGENT FOR THE COLOR-DEVELOPING SUBSTANCE CONTAINED IN THE FIRST LAYER A THERMOFUSIBLE POLYETHER WHICH IS SUBSTANTIALLY SOLID AT NORMAL TEMPERATURE.
Claim 2
Dependent Claim
130 words
A HEAT-SENSITIVE TWO COLOR RECORDING PAPER WHICH HAS A LAYER OF A FIRST HEAT-SENSITIVE RECORDING MATERIAL PREPARED BY DISPERSING, AS DISCONTINUOUS PARTICLES INTO A FILMFORMING BINDER, A TRIPHENYLMETHANE OR FLUORAN TYPE NONCOLORED DYE BASE HAVING IN THE MOLECULE A REACTIVE COLORDEVELOPING COMPONENT OF THE LACTONE OR LACTAM TYPE, AND A PHENOLIC SUBSTANCE OR AN ORGANIC ACID, SAID LAYER DEVELOPING A COLOR AT THE TIME OF APPLICATION OF HEAT, BY FORMATION OF A COLOR-DEVELOPING SUBSTANCE, AND A LAYER OF A SECOND HEAT-SENSITIVE RECORDING MATERIAL CA VELOPING AT THE SAME TIME OF APPLICATION OF HEAT A COLOR DIFFERENT FROM THE COLOR OF THE AFORESAID FIRST LAYER, AND WHICH CONTAINS AS A DECOLORIZING AGENT FOR THE COLOR-DEVELOPING SUBSTANCE CONTAINED IN THE FIRST LAYER A THERMOFUSIBLE POLYETHER WHICH IS SUBSTANTIALLY SOLID AT NORMAL TEMPERATURE.