How to improve the thermal sensitivity of three proof thermal paper?

To improve the thermal sensitivity of the three proof thermal paper, we can start from the following aspects:

1、 Optimize coating formula

Selected raw materials:

Choose high-performance thermosensitive colorants and color developers to ensure that they react quickly and fully when heated.

The finer the particles of the raw material, the more helpful it is to improve the sensitivity of thermal paper. Therefore, in the preparation of thermosensitive coatings, high-performance grinding machines can be used to make the raw materials into dispersions to obtain finer particles.

Adjust the ratio:

By precisely adjusting the ratio of colorants and color developers, the optimal chemical combination can be found to improve the efficiency and speed of thermal reactions.

It is possible to consider adding appropriate additives such as dispersants, stabilizers, etc. to improve the uniformity and stability of the coating, thereby enhancing thermal sensitivity.

2、 Improve paper quality

Select high-quality base paper:

Choose thermal sensitive base paper with good fiber quality and moderate tightness as the substrate. This type of paper can better support thermal sensitive coatings and provide stable support when heated.

Optimize paper structure:

By adjusting the fiber arrangement and pore structure of the paper, the heat conduction and distribution of the paper can be improved, thereby enhancing the thermal uniformity and reaction speed of the thermosensitive coating.

3、 Improve production process

Coating process:

Adopting advanced coating techniques such as air knife coating, scraper coating, or roller coating to ensure uniform coating and consistent thickness. This helps to improve the reaction efficiency and clarity of thermal sensitive coatings.

Drying and curing:

After coating, appropriate drying and curing processes are used to ensure that the chemicals in the coating react fully and are fixed. This helps to improve the stability and sensitivity of thermal sensitive coatings.

4、 Consider environmental factors

Temperature and humidity control:

Strictly control the temperature and humidity of the environment during production and use. Excessive or insufficient temperature and humidity may affect the reaction speed and stability of thermal sensitive coatings.

Avoid chemical pollution:

Prevent thermal paper from coming into contact with chemicals that may have a negative impact on its performance during production and use, such as strong acids, strong bases, organic solvents, etc.

5、 Continuous research and innovation

New material research and development:

Continuously exploring and developing new types of thermosensitive colorants and color developing materials, as well as auxiliary materials with special functions, to improve the performance and sensitivity of thermosensitive coatings.

Process innovation:

Continuously optimizing and improving production processes, introducing advanced production equipment and testing technology to enhance product quality and stability.

In summary, improving the thermal sensitivity of three proof thermal paper requires starting from multiple aspects such as coating formula, paper quality, production process, environmental factors, and continuous research and innovation. By comprehensively considering these factors and taking effective measures, the thermal sensitivity of the three proof thermal paper can be significantly improved to meet the needs of various application scenarios.