Are there any special requirements for the ink used in printing three proof thermal paper?

The ink for printing three proof thermal paper does have special requirements, which are mainly reflected in the following aspects:

1、 Adaptability of Ink

Due to the special surface coating and chemical properties of the three proof thermal paper, it is required that the ink must have good adaptability, be able to form good adhesion with the paper surface, ensure clear printed images, bright colors, and be not easily peeled off.

2、 Weather resistance of ink

Three proof thermal paper is usually used for labels, bills, etc. that require long-term storage or exposure to various environments. Therefore, ink is required to have good weather resistance, including water resistance, oil resistance, scratch resistance, and other properties. This ensures that printed images remain clear and stable in various environments.

3、 Environmental friendliness of ink

With the increasing awareness of environmental protection, more and more users are paying attention to the environmental friendliness of ink. Therefore, the ink used for printing three proof thermal paper needs to comply with relevant environmental standards, such as low VOC (volatile organic compound) emissions, non-toxic and harmless, etc. This can not only reduce environmental pollution, but also protect the health of operators.

4、 Drying properties of ink

Due to the fact that three proof thermal paper is usually used for fast printing and instant use, ink is required to have a fast drying speed. This ensures that the printed image can be fixed in a short period of time and is not easily wiped or blurred.

5、 Color reproduction of ink

In order to ensure the color purity and good color reproduction of printed images, the chromatography of ink requires purity, and the color intensity of coloring agents should be high. The printed image in this way has bright and deep colors, which can meet the user's demand for high-quality images.

In summary, the ink used for printing three proof thermal paper has special requirements in terms of adaptability, weather resistance, environmental friendliness, dryness, and color reproduction. To meet these requirements, it is usually necessary to choose ink specifically for three proof thermal paper, or to perform special modifications and treatments on ordinary ink. When choosing ink, users should consider their specific needs and paper type comprehensively to ensure the best printing effect.