What are the key quality indicators of PET thermal matte silver paper?

The key quality indicators of PET thermal matte silver paper mainly include the following aspects:

1. Appearance quality

Color uniformity: The color of the thermal matte silver paper should be uniform, matte silver, and there should be no obvious color difference or color spots on the surface.

Flatness: The surface of the paper should be smooth and smooth, without obvious uneven phenomenon, to ensure the clarity of the printing effect.

Cleanliness: The surface of the paper should be clean and free of impurities to avoid affecting the print quality and equipment life.

2. Print performance

Thermal reaction performance: thermal matte silver paper should have good thermal reaction performance, that is, it can quickly and clearly display the printed content after heating, and the color is stable and not easy to fade.

Print clarity: Printed text and images should have clear edges, rich details, and no blurring or gelling.

Ink absorption: The paper should have good ink absorption to ensure that the ink can be evenly and quickly absorbed by the paper, thereby improving the print quality.

3. Physical properties

Thickness: According to different application requirements, the thickness of PET thermal matte silver paper can be different, but it should be kept within a certain reasonable range to ensure the strength and stability of the paper. Common thickness ranges may include but are not limited to 55-80 microns or more specific such as 0.02 mm (i.e. 20 microns).

Tear resistance: The paper should have a certain amount of tear resistance, can not be damaged in the normal use process.

High temperature resistance: The PET substrate itself has good high temperature resistance, so the thermal matte silver paper should also maintain a stable printing effect and performance under a certain high temperature environment.

4. Chemical stability

Chemical resistance: The paper should have a certain amount of chemical resistance, can be in contact with common chemicals to maintain the printing effect and the stability of the paper structure.

Environmental protection: The production and use of paper should minimize pollution to the environment, the use of environmentally friendly materials and processes. At the same time, waste thermal paper should be classified and treated to minimize the adverse impact on the environment.

5. Durability and stability

Durability: Printed text and images should have a certain durability, not easy to fade or blur in the course of long-term use.

Light stability: The paper should have a certain light stability, that is, it is not easy to change color or fade under long-term sun exposure.

Humidity stability: In an environment with large humidity changes, the paper should maintain the stability of the print quality to avoid a decline in print quality due to too high or too low humidity.

In summary, the key quality indicators of PET thermal matte silver paper cover many aspects such as appearance quality, printing performance, physical properties, chemical stability, durability and stability. These indicators together determine the overall quality and use effect of thermal matte silver paper.