Environmental factors have a significant impact on transparent thermal label paper, mainly reflected in the following aspects:
First, temperature
1.High temperature environment: High temperature will cause changes in the thermistin molecules in the printing layer of transparent thermal label paper, resulting in color loss or whiteness, thus affecting the print quality and readability. Prolonged exposure to high temperatures may even lead to the complete failure of the label paper. Therefore, it is recommended to store transparent heat-sensitive labels in a cool and dry place to avoid high temperature environments.
2.Low temperature environment: Although the direct impact of low temperature environment on transparent thermal label paper is relatively small, extreme low temperature conditions may also affect the flexibility and printing effect of label paper. However, in daily applications, the impact of low temperature on transparent thermal label paper is usually not as significant as high temperature.
Second, humidity
High humidity will cause the moisture absorption of transparent thermal label paper, accelerate the chemical reaction of thermal coating, and shorten the storage life of label paper. In addition, the moisture of the thermal paper will accelerate the fading, because the moisture will decompose the chemical composition of the thermal paper hair color. Therefore, maintaining a dry environment is crucial to the preservation of transparent heat-sensitive label paper.
Third, lighting
Transparent thermal label paper is also a light-sensitive material, although it is mainly sensitive to infrared light, but other wavelengths of light (such as ultraviolet) will also have an impact on it. Exposure to sunlight or strong light for a long time will cause the photosensitive performance of the label paper to decay, making the printed words become blurred or even disappear. Therefore, it is recommended to store transparent heat-sensitive labels in a light-free environment to avoid direct sunlight and ultraviolet radiation.
Fourth, chemical substances
Transparent heat-sensitive labels are susceptible to the effects of chemicals, such as acidic or alkaline substances. These substances may react with the chemicals in the label paper, causing color changes or label failure. Therefore, when storing and using transparent thermal label paper, it is necessary to avoid contact with substances such as ink and chemicals that may cause damage to it.
Fifth, oxygen and storage time
The storage time of transparent thermal label paper is also closely related to environmental factors. Under the action of oxygen, the chemicals on the label paper will gradually undergo oxidation reactions, resulting in color fading and label failure. Therefore, reasonable storage methods and environmental conditions can extend the storage time of transparent thermal label paper. In general, if transparent heat-sensitive label paper is properly stored in a cool, dry, light-free environment, and avoid contact with chemicals, its storage time can be relatively long. However, the specific storage time also depends on many factors such as the quality of the label paper, the production process and the storage conditions.
In summary, the impact of environmental factors on transparent thermal label paper is multifaceted, including temperature, humidity, light, chemicals and oxygen. In order to extend the storage time of transparent thermal label paper and maintain its good printing effect, it is recommended to take appropriate storage measures and environmental conditions.