How to clean the ink left after printing long-lasting triple-proof thermal paper?

To clean ink marks left on thermal paper with long-lasting, triple-proof printing, there are several methods:

1. Using a Professional Remover
   Liquid removers designed specifically for removing ink marks, such as those from Bingchun, can effectively remove ink marks from thermal paper. To use, simply gently apply the remover to the desired area and wait for a moment. The mark will quickly disappear. Make sure your hands are dry and avoid applying excessive pressure, which may damage the paper. After use, store the remover out of the reach of children to prevent ingestion or misuse.
2. Physical Heating
   Due to the special properties of thermal paper, ink marks on it will quickly darken and may disappear when exposed to heat. Therefore, you can heat the thermal paper using a flame (such as a lighter, but be careful to avoid fire or burns) or a heat source (such as a hair dryer or a straight-line clip). When using a hair dryer, set the heat setting to hot and gently heat the mark. When using a straight-line clip, place the hot surface of the hair dryer in contact with the mark until it disappears. However, physical heating may cause some damage to the paper, so use with caution.
3. Light Treatment
   Exposing thermal paper to strong light (such as sunlight) for a long time can also gradually remove ink stains. This is because the chemical reactions in thermal paper become unstable under light, causing the ink to fade. While this method takes longer to work and may not be as effective as heating, it is an environmentally friendly and low-cost option for treating thermal paper with ink in non-emergency situations.
4. Hand Cream and Nail Polish Remover
   Hand cream contains a certain amount of surfactants that can penetrate the surface of the paper and soften some ink stains. To use, apply an appropriate amount of hand cream to the ink stain, gently massage for a while, and then wipe with a tissue or damp cloth. However, please note that the results vary from person to person and may not be as effective on stubborn ink stains. Nail polish remover, due to its stronger corrosive properties, can remove ink stains more quickly. To use, apply nail polish remover to the ink stain, let it sit for a while, and then gently wipe it off. However, please be careful not to use nail polish remover on non-corrosive surfaces to avoid damage.
5. Alcohol or expired perfume
   Alcohol is a commonly used organic solvent that can dissolve ink stains on thermal paper. To use, spray an appropriate amount of alcohol on the ink stain, wait a moment, and then wipe it off with a tissue or damp cloth. However, be aware that alcohol may damage the paper, so use with caution. Similarly, the alcohol in expired perfume can have a similar effect, but the effectiveness may vary depending on the brand and ingredients.

Precautions
Before using any removal method, ensure you understand and follow the relevant safety procedures to prevent accidents.

For thermal paper containing important information that has lost its value, physical destruction (such as shredding or incineration) is recommended to ensure that the information is not leaked.

For environmental reasons, please minimize waste and unnecessary handling of thermal paper to reduce environmental impact at the source.

To sum up, there are many ways to clean the ink left on the printed long-lasting triple-proof thermal paper. The appropriate method should be selected according to the actual situation.