The design intention of the three proof thermal paper is mainly to adapt to thermal or heat transfer printing methods, and its surface coating and characteristics are usually optimized for these printing processes. Therefore, from a technical and design perspective, three proof thermal paper is not optimized for manual writing.
However, this does not mean that three proof thermal paper cannot be hand written at all. In some cases, if the ink of a writing tool (such as a pen) is compatible with the coating of thermal paper and the writing force is moderate, manual writing may still be possible on triple proof thermal paper. However, it should be noted that due to the special coating and sensitivity of thermal paper, manual writing may cause the following problems:
Uneven ink penetration: Some ink may penetrate into the coating of thermal paper, causing text to become blurry or diffuse.
Coating damage: Excessive writing pressure may damage the coating of thermal paper, affecting its printing effect or durability.
Readability issues: Handwritten text may have color and contrast differences from thermal printed text, leading to readability issues.
Therefore, although manual writing can theoretically be done on three proof thermal paper, it is recommended to avoid manual writing on thermal paper as much as possible to ensure the best printing effect and readability. If additional information needs to be added to thermal paper, it is possible to consider using labels or stickers compatible with thermal paper to achieve this.
Overall, three proof thermal paper is more suitable for thermal or heat transfer printing methods rather than manual writing. When choosing to use thermal paper, the appropriate paper type should be selected based on specific application scenarios and requirements.