How to improve the scratch resistance of thermal label paper?

To improve the scratch resistance of thermal label paper, you can start from the following aspects:

1. Optimize thermal coating formulation

Selection of high-performance materials: In the thermal sensitive coating selection of wear-resistant materials, such as high-performance dyes, color development agents and sensitizers. These materials are better able to resist external scratches and maintain legible writing.

Improve the coating structure: by adjusting the structure and formula of the coating, such as the use of multi-layer coating technology, the formation of a dense protective layer, improve the wear resistance of the coating.

2. Strengthen the protective layer design

Add wear-resisting additives: Add wear-resisting additives, such as wear-resisting wax emulsion, to the protective layer, which can effectively improve the wear resistance of the coating and reduce the damage of scratching to the label.

Optimizing the coating thickness: Appropriately increasing the thickness of the protective layer can improve the scratch resistance of the label to a certain extent. However, it should be noted that too thick a coating may affect the printing effect and cost.

3. Use scratch-resistant materials

Choose a high-quality substrate: The selection of a tough, non-deformable substrate as the bottom layer of thermal label paper can fundamentally improve the scratch resistance of the label.

The use of special coating materials: there are some scratch resistant thermal label papers on the market with special coating materials, which have significantly improved scratch resistance.

4. Improve the manufacturing process

Precise control of the coating process: In the coating process, precise control of the coating amount, coating speed and drying temperature and other parameters to ensure that the coating is uniform and dense, thereby improving the scratch resistance of the label.

Strengthen the post-treatment process: through the post-treatment process such as calender and curing, the wear resistance and flatness of the coating are further improved, making the label more durable.

5. Use long-acting three heat-proof paper

Long-acting three-proof technology: long-acting three-proof heat-sensitive paper is processed by special process, so that the label paper has the triple protection performance of waterproof, oil-proof and scratch-proof. This kind of label paper can still maintain clear writing in harsh environments, and is not easy to fade or damage.

6. Precautions

Avoid direct contact with the tape: The coating on the surface of the thermal paper may react with the tape, causing the writing to fade. Therefore, when using heat-sensitive label paper, direct contact with the tape should be avoided as far as possible.

Storage environment: A proper storage environment also helps maintain the scratch resistance of heat-sensitive label paper. Do not store the label in high temperature, humidity, or direct sunlight to avoid accelerating the aging and fading of the label.

In summary, improving the scratch resistance of thermal label paper needs to start from many aspects, including optimizing the formula of thermal coating, strengthening the design of protective layer, using scratch-resistant materials, improving the manufacturing process and selecting long-term three thermal resistant paper. The implementation of these measures will help improve the durability and reliability of thermal label paper to meet the application needs of more industries.