As thermal paper is coated with chemicals that allow the activation of the chemicals to produce a specific color (usually black) when put in contact with a heat source. So the easiest way to identify thermal paper and woodfree paper is scratching the paper surface with your fingernails on double side. If the paper surface turns black, it is thermal paper, otherwise it is woodfree paper.
Frank Ouyang is the sales manager at Panda Paper Roll Company - a leading factory of thermal paper rolls, label rolls, and other print-related products. With extensive experience in the industry, Frank is an expert in thermal paper knowledge and enjoys sharing his insights and expertise with clients, helping them achieve their goals and maximize their success.
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