Does long-acting heat-sensitive label paper contain harmful substances?

Whether the long-acting heat-sensitive label paper contains harmful substances is a problem involving many aspects. Here's a closer look at the problem:

First, the basic composition of thermal paper and potentially harmful substances

Thermal paper is usually divided into three layers: the bottom layer is the paper base, the second layer is the thermal coating (color change layer), and the third layer is the protective layer. Chemicals commonly used in thermal coatings include colorless dyes, sensitizers, fillers, etc. Among them, some dyes and sensitizers may contain potentially harmful substances such as bisphenol A.

Second, the particularity of long-acting three heat-sensitive label paper

Long-acting three heat-proof label paper on the basis of ordinary heat-sensitive paper added waterproof, oil-proof, alcohol-proof and other characteristics. These properties are usually achieved by adding special chemicals to the heat-sensitive coating. Therefore, long-acting thermal label paper may contain more chemicals than ordinary thermal paper.

Third, the content and impact of harmful substances

1.Bisphenol A: Although bisphenol A is a low toxic chemical, it may break down and release harmful substances at high temperatures. If the long-acting heat-sensitive label paper contains bisphenol A, it may have a certain impact on the human body and the environment in a high temperature environment (such as the printing process). However, it is important to note that not all long-acting thermosensitive labels contain BPA. Some high quality products may use non-toxic or less toxic alternatives.

2.Other harmful substances: In addition to bisphenol A, long-acting heat-sensitive labels may also contain other harmful substances, such as benzophenone derivatives. These substances may cause allergic reactions after prolonged contact with the skin.

Fourth, environmental protection and safety considerations

With the improvement of environmental awareness, more and more manufacturers begin to pay attention to the environmental performance of products. Some high-quality long-acting thermal label paper has been used non-toxic or low-toxic raw materials, and passed the relevant environmental protection and safety certification. Therefore, when choosing long-acting thermal label paper, it is recommended to give priority to those products that have been certified for environmental protection and safety.

Fifth, conclusion

Whether the long-acting heat-sensitive label paper contains harmful substances depends on its specific chemical composition and production process. When selecting and using such products, it is recommended to carefully review product descriptions and certifications to ensure that they meet environmental and safety standards. At the same time, for sensitive groups such as infants and pregnant women, special attention should be paid to controlling the amount and time of exposure to such products to avoid possible physical damage.