How to clean the ink marks left behind after printing long-lasting three proof thermal paper?

2025-03-13 17:27
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There are several methods to clean the ink marks left on the long-lasting three proof thermal paper for printing:


1. Use professional elimination agents

Bingchun and others have designed liquid ink removers specifically for eliminating ink marks, which can effectively remove ink stains on thermal paper. When using, simply gently apply the eraser to the ink that needs to be removed, wait for a moment, and the ink will quickly disappear. Please make sure your hands are dry and avoid excessive force that may cause paper damage. After use, the disinfectant should be stored out of reach of children to prevent accidental ingestion or misuse.


2. Physical heating method

Due to the special properties of thermal paper, the ink on it will quickly turn black and may disappear when exposed to heat. Therefore, thermal paper can be heated using a fire source (such as a lighter, but safety should be taken into account to avoid fire or burns) or a heat source (such as a hair dryer, straight clip, etc.). When using a hair dryer, turn it to the hot air mode and gently heat it up against the ink stains; When using a straight clamp, use its high-temperature surface to contact the ink until the ink disappears. However, the physical heating method may cause some damage to the paper, so caution should be exercised when using it.


3. Light treatment method

Exposing thermal paper to strong light (such as sunlight) for a long time can also gradually make ink stains disappear. This is because the chemical reaction on thermal paper becomes unstable under light conditions, leading to ink fading. Although this method takes a long time to take effect and may not be as significant as heating, it is still an environmentally friendly and low-cost option for handling thermal paper containing ink stains in some non emergency situations.


4. Hand cream and nail polish remover

Hand cream contains a certain amount of surfactants that can penetrate the surface of paper and soften some ink stains. When using, apply an appropriate amount of hand cream to the ink stains, gently massage for a moment, and then wipe with a tissue or damp cloth. However, it should be noted that the effect varies from person to person and may not be effective for stubborn ink stains. Due to its strong corrosiveness, nail polish remover can remove ink stains faster. When using, apply nail polish remover to the ink stain, let it sit for a while, and then gently wipe it off. However, please note that nail polish remover should not be used on surfaces that are not corrosion-resistant to avoid damage.


5. Alcohol or expired perfume

Alcohol is a commonly used organic solvent that can dissolve ink marks on thermal paper. When using, spray an appropriate amount of alcohol on the ink stain, wait for a moment, and then wipe it with a tissue or damp cloth. However, it should be noted that alcohol may cause some damage to paper, so caution should be exercised when using it. Similarly, the alcohol component in expired perfume can also play a similar role, but the effect may vary depending on perfume brands and components.


Precautions

Before using any elimination method, please ensure that you understand and comply with the relevant safety operating procedures to prevent accidents from occurring.

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

Considering environmental factors, please try to minimize the waste and unnecessary disposal of thermal paper, and reduce the impact on the environment from the source.


In summary, there are multiple methods to choose from for cleaning and printing ink marks left on long-lasting three proof thermal paper, and the appropriate method should be selected according to the actual situation for operation.