How long can the thermal label keep the writing clear

The length of time that the thermal label paper can keep the handwriting clear is affected by a variety of factors, including the quality of the thermal paper, the storage environment (such as temperature, humidity, light, etc.), the state of the print head, and printing Settings. Therefore, it is difficult to give an exact time frame. However, based on some common situations and experiences, it can be broadly summarized as follows:

In general

Thermal paper used in supermarkets, shopping malls, banks: the storage period of the printing of thermal paper used in these occasions is usually not completely disappeared within 3 months, and the handwriting remains clear within 1 month. This is a conclusion based on the daily use needs of these occasions and the general performance of thermal paper.

Fax type thermal paper: For fax type thermal paper, the printed text is required to be stored for more than six months. This is because faxed documents usually need to be kept for a longer period of time for reference.

Special thermal paper for medical use: under ideal conditions, its storage period is required to be up to 2 years. This type of thermal paper is usually specially treated to meet the stringent requirements of the medical industry.

Special treatment or high quality thermal paper

Some thermal papers can significantly extend the preservation time of the writing by special treatment, such as adding a more stable color developing coating or improving the production process. It is reported that some specially treated thermal paper can be stored for as long as ten years.

Effect of storage environment on legibility time

Light: Avoid direct sunlight, the darker the light, the longer the writing life of the thermal paper.

Humidity: Moisture will accelerate the fading of thermal paper, because moisture will decompose the chemical composition of thermal paper hair color.

Temperature: The high temperature environment may also accelerate the fading of the writing on thermal paper.

Air: In contact with air for a long time, the oxidation function of the air will destroy the protective coating of the thermal paper, thus affecting the clarity of the writing.

conclusion

In summary, the time that thermal label paper can maintain legibility ranges from half a month to several years, depending on the quality of the thermal paper, the storage environment, and whether it has been special treatment. In order to prolong the storage time of the writing on the thermal label paper, it is recommended to select the appropriate thermal paper type, pay attention to the storage environment, avoid long-term exposure to sunlight, humidity or high temperature environment, and regularly check and replace the print head to maintain a good printing state.