How to improve the weather resistance of PET dumb silver thermal label paper?

To improve the weather resistance of PET dumb silver thermal label paper, you can start from the following aspects:

First, material selection and optimization

1.Choose high-quality PET substrate: PET (polyethylene terephthalate) itself has good weather resistance, but different quality PET substrates may have differences in weather resistance. Therefore, the selection of high-quality PET substrates is the basis for improving the weather resistance of matte silver thermal label paper.

2.Add weather-resistant additives: In the production process, you can add weather-resistant additives to the PET substrate, such as ultraviolet absorbers, light stabilizers, etc. These additives can effectively resist the damage of environmental factors such as ultraviolet, light, temperature changes to the label paper, thereby extending its service life.

Second, surface treatment and coating

1.Surface coating treatment: By coating a special coating on the surface of PET matte silver thermal label paper, its weather resistance can be further improved. This coating can form a protective film to prevent the external environment from eroding the label paper. Common coating types include solvent-based coating and water-emulsion coating, among which solvent-based coating has better weather resistance, but the environmental protection is relatively poor; The water-emulsion coating has better environmental protection, but the weather resistance may be slightly worse than the solvent-based coating.

2.Corona treatment: Corona treatment can improve the surface energy of PET self-adhesive material, making it easier to combine with ink or adhesive, thereby improving the weather resistance and printing effect of label paper. However, it should be noted that the surface energy after ordinary corona treatment may be unstable, so more advanced corona treatment technology or combined with other surface treatment methods may be required.

Third, printing technology and carbon belt selection

1.Use the right printing technology: Different printing technologies also have a certain impact on the weatherability of label paper. For example, UV letterprinting technology can improve the weather resistance of label paper to a certain extent due to its high definition and high adhesion. When selecting printing technology, it is necessary to consider factors such as printing effect, cost and equipment compatibility.

2.Choose high-quality carbon belt: the quality of the carbon belt directly affects the printing effect and the weatherability of the label paper. High-quality carbon strips usually have better adhesion and wear resistance, and can be better combined with the label paper during the printing process, thus improving the weather resistance of the label paper. When selecting the carbon tape, you need to choose according to the material and printing requirements of the label paper.

Fourth, storage and use environment

1.Light storage: Long-term exposure to strong light will accelerate the aging process of the label paper, so it is recommended to store the PET matte silver thermal label paper in a cool, dry, light free environment.

2.Avoid extreme environments: extreme environments such as high temperature, high humidity, strong acid and alkali will adversely affect the weather resistance of the label paper. Therefore, when using label paper, you should try to avoid exposing it to extreme environments.

In summary, improving the weather resistance of PET matte silver thermal label paper needs to be comprehensively considered and implemented from many aspects such as material selection and optimization, surface treatment and coating, printing technology and carbon strip selection, and storage and use environment.