How to enhance the waterproof and moisture-proof performance of transparent heat-sensitive label paper?

Enhancing the waterproof and moisture-proof performance of transparent heat-sensitive label paper can be achieved by a variety of methods, which mainly include but are not limited to the following:

First, surface treatment technology

1.Special coating treatment:

A special waterproof coating is sprayed on the surface of the transparent heat-sensitive label paper, which can form a dense waterproof film and effectively block the penetration of water. This treatment can significantly improve the waterproof performance of the label paper.

Example: Some high-end transparent thermal label paper products are sprayed with waterproof materials such as PVA (polyvinyl alcohol) as the top coating to improve their waterproof performance.

2.Coating treatment:

The surface of the transparent thermal label paper is covered with a waterproof film, and the commonly used materials include BOPP (biaxially stretched polypropylene) and PET (polyethylene terephthalate). This waterproof film can effectively isolate water and protect the label from the impact of wet environment.

Note: The coating treatment needs to ensure that the bond between the film layer and the label paper is strong to avoid the film layer falling off during use.

Second, material improvement

1.Choose the substrate with good waterproof performance:

In the production of transparent heat-sensitive label paper, the substrate with good waterproof performance can be selected as the underlying material. This can fundamentally improve the waterproof and moisture-proof performance of the label paper.

2.Optimized thermal layer formulation:

In the thermal layer, the use of a suitable pigment and adhesive combination can improve the waterproof performance of the thermal image. For example, the ratio of pigment and adhesive determined by experiment can significantly improve the waterproof test image retention rate of thermal paper samples.

Example: The use of a specific ratio of PVA and a certain sensitizer can ensure the color performance of thermal paper while improving its waterproof performance.

Third, manufacturing process improvement

1.Strengthen quality control in the production process:

Through strict control of various parameters in the production process, such as temperature, humidity, pressure, etc., to ensure that the quality of transparent thermal label paper is stable and reliable. This helps reduce water resistance degradation due to production process issues.

2.Advanced printing and coating technology:

The introduction of advanced printing and coating equipment to improve the printing and coating accuracy, to ensure that the waterproof coating or film layer is evenly and firmly attached to the label surface.

Fourth, use environment control

Although enhancing the waterproof and moisture-proof performance of transparent thermal label paper itself is the key, it is also necessary to pay attention to controlling the use environment during use:

Avoid prolonged soaking: Even if the label paper has a certain waterproof ability, prolonged soaking may still cause performance degradation.

Keep a dry environment: When storing and using labels, ensure that the environment is dry and ventilated to avoid the adverse impact of humidity and high temperature environment.

To sum up, enhancing the waterproof and moisture-proof performance of transparent thermal label paper needs to start from many aspects, including surface treatment technology, material improvement, manufacturing process improvement and environmental control. Through the comprehensive application of these measures, the waterproof and moisture-proof performance of transparent thermal label paper can be significantly improved to meet the needs of more industries.