Till Rolls Thermal 50ROLLS 1X57X40MM

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 black. Buy  From Teeparam Wholesale.
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Weight 3.5
Length 24
Width 24
Height 18