Art of dyeing synthetic polymeric

Claim 1

THE PROCESS OF DYEING AN ALPHA-OLEFIN POLYMERIC MATERIAL HAVING A PARAFFINIC CHAIN AS THE NUCLEUS AND HAVING A SOFTENING POINT 100*C. TO PRODUCE A LIGHTAND LAUNDERING-FAST COLOR SHADE ON SAID MATERIAL, WHICH COMPRISES APPLYING TO THE SURFACE OF THE MATERIAL IN FINELY DISPERED FORM AN ORGANIC DYE HAVING THE PROPERTIES OF BEING HEAT AND LIGHT STABLE AND WITHOUT ASSISTANT AGENT OF BEING INSOLUBLE IN LIQUID PARAFFIN WAX AT A TEMPERATURE UP TO 60*C. BUT SOLUBLE IN SAID PARAFFIN WAX AT LEAST AT A TEMPERATURE SLIGHTLY BELOW THE SOFTENING POINT OF THE POLYMERIC MATERIAL, SAID DYE BEING FORM TO A WATER INSOLUBLE FORM AND IN THE ABSENCE OF ANY VOLATILE SOLVENT FOR SAID DYE AT A TEMPERATURE BELOW THE TEMPERATURE AT WHICH SAID DYE WOULD BE SOLUBLE IN LIQUID PARAFFIN WAX, AND HEATING THE POLYMERIC MATERIAL WITH THE DYE APPLIED THERETO WHILE SAID DYE IS IN DRY FORM TO A TEMPERATURE RANGING BETWEEN THE TEMPERATURE AT WHICH SAID DYE IS SOLUTION IN LIQUID PARAFFIN WAX AND A TEMPERATURE SLIGHTLY BELOW THE SOFTENING POINT OF THE POLYMERIC MATERIAL, TO CAUSE THE DYE IN THE DRY STATE TO BE DIFFUSED INTO AND FIRMLY ABSORBED WITHIN THE INTERIOR OF THE MATERIAL.