How security is color thermal label paper?

The security of color thermal label paper is a complex issue that needs to be analyzed from multiple perspectives. The following is a detailed discussion of its security:

First, basic material safety

The basic material of color thermal label paper is usually bidirectional tensile polypropylene (BOPP) film, which is colorless, odorless, non-toxic, and has high transparency, which makes color thermal synthetic paper in the printing of anti-counterfeiting signs can show a more vivid and vivid color effect. At the same time, the BOPP film also has good physical properties, such as high tensile strength, impact strength, rigidity, toughness and good transparency, which make the color thermal label paper able to withstand certain physical damage in anti-counterfeiting applications, increasing the difficulty of counterfeiting.

Second, the chemical substances in the heat-sensitive coating

The safety of color thermal label paper mainly depends on the chemical substances in its thermal coating. The production principle of thermal paper is to coat a layer of "thermal paint" on the ordinary paper base to form a thermal discoloration layer, when the thermal paper encounters a hot print head, the film melts, and the colorless dye printed at the print head reacts chemically with the color development agent, from colorless to black or other colors. In this process, the chemicals in the heat-sensitive coating may have a certain impact on human health.

Third, effects of bisphenol A (BPA)

One of the commonly used color developing agents in thermal paper is bisphenol A (BPA). Although BPA is A low-toxicity chemical and relatively stable at room temperature, it may cause damage to the human body if heated or exposed to long-term exposure. For example, it increases the risk of cancer and causes endocrine disorders in those who are exposed. Therefore, for sensitive groups such as infants and pregnant women, special attention should be paid to controlling the amount and time of contact with thermal paper to avoid possible physical damage.

Fourth, market product differences

At present, there are many manufacturers of thermal paper on the market, and their formulations and specifications are different, and the dosage of bisphenol A is also different. Some high-end thermal paper products may have adopted BPA-free formulations, thus greatly reducing the potential harm to the human body.

Fifth, suggestions for use

1.Avoid long-term contact: Try to avoid long-term contact with thermal paper, especially after heating thermal paper.

2.Wash your hands promptly: Wash your hands promptly after contact with thermal paper to avoid bringing harmful substances into your mouth.

3.Choose high-end products: If possible, it is recommended to choose high-end thermal paper products that do not contain harmful chemicals such as bisphenol A.

Sixth, views of authoritative institutions

According to publicly released information, authorities have also paid attention to and studied the safety of thermal paper. Although BPA does have some toxicity, its stability at room temperature and exposure to low doses usually do not cause significant harm to the human body. However, in order to safeguard public health, especially the health of sensitive populations, reducing the use of harmful chemicals such as bisphenol A remains an important research direction.

In summary, the safety of color thermal label paper depends on the composition and content of the chemical substances in its thermal coating. Under normal circumstances, the color thermal label paper produced by regular manufacturers that meets the relevant standards should be relatively safe. However, in order to minimize potential risks, users still need to follow the above usage recommendations and choose safer products.