The thermal layer of thermal paper undergoes a chemical reaction when stimulated by heat, resulting in a visible image. However, this chemical reaction is irreversible and once the image is generated, it fades over time. This is due to the gradual breakdown, loss of color, or degradation of the chemicals in the thermal layer.
Light Exposure:
Light exposure can also cause thermal paper to fade. Prolonged exposure to sunlight or bright light, especially ultraviolet light, accelerates the decomposition of the chemicals in the thermal layer and the loss of color.
High-temperature environments:
High-temperature environments may have an adverse effect on thermal paper. Excessive temperatures can accelerate the chemical reaction and decomposition process in the thermal layer, leading to image color fading.
How do I stop my receipt from fading?
Proper storage conditions:
store thermal paper in a light-proof, dry, ventilated environment away from high temperatures and UV exposure.
Avoid prolonged light exposure:
Minimize the amount of time the thermal paper is exposed to sunlight or bright light, especially UV light.
Control the printing temperature:
During the printing process, select the appropriate printing temperature to avoid damage to the thermal paper from excessive temperature.
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