Till Rolls Thermal 20ROLLS 1X80X80

This paper is coated with chemicals that react to turn black when heated. An example is the combination of a fluoran leuco dye and octadecylphosphonic acids. The surface of the paper is glossier than standard paper, and if you draw your fingernail across it, it turns blackBuy  From Teeparam Wholesale.
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Weight 5.9
Length 38
Width 18
Height 16