How to improve the durability of color thermal label paper?

The durability of color thermal label paper refers to its ability to remain clear and colorless after a long time of storage or use. To improve the durability of color thermal label paper, you can start from the following aspects:

First, choose high quality thermal paper

1.Observe the appearance: Good thermal paper should be slightly green, not particularly white. The surface of the paper should be clean and uniform, without obvious reflected light, which means that the protective coating and heat-sensitive coating of the paper are properly treated without adding too much phosphor.

2.Fire test: heating with a lighter on the back of the paper, good quality thermal paper after heating should appear black and green, and the color block is uniform, from the center to the surrounding color slowly fade. If the color is brown after heating or there are small stripes and uneven color blocks, it indicates that the heat-sensitive formula or coating quality is not good.

3.Sun exposure comparison: Apply the printed paper with a highlighter and put it in the sun to observe the speed of the paper blackening. The faster it blackens, the shorter the shelf life.

Second, optimize storage conditions

1.Avoid direct sunlight: Ultraviolet rays in sunlight can accelerate the aging of the heat-sensitive coating, causing the label to fade. Therefore, the heat-sensitive label paper should be stored in a cool, dry, ventilated place to avoid direct sunlight.

2.Temperature and humidity control: at 23±2 ° C and RH65±5% relative humidity, thermal label paper can be stored for a long time. High or low temperature and humidity will affect the durability of the label paper.

3.Sealed packaging: The use of sealing materials such as plastic film to package thermal label paper can effectively isolate oxygen and moisture in the air, delaying the oxidation and aging process of the label paper.

Third, the use of advanced printing technology

1.Thermal transfer printing technology: Compared with traditional thermal printing technology, thermal transfer printing technology (also known as carbon strip printing) has higher print quality and longer storage time. It works by transferring toner from a carbon strip to paper to form an image, which is more durable and less prone to fading.

2.High-quality ink and carbon tape: Choosing high-quality ink and carbon tape is also a key factor in improving the durability of color thermal label paper. High-quality inks and carbon strips have better adhesion and weather resistance, ensuring that the printed images remain clear and vivid for a long time.

Fourth, pay attention to the protection during use

1.Avoid long-term contact with the air: the oxidation function of the air will destroy the protective coating of the thermal paper, so the label paper should be avoided for a long time in the process of use.

2.Avoid contact with chemicals: Certain chemicals (such as oils, solvents, etc.) may react with the heat-sensitive coating and cause the label to fade. Therefore, the label paper should be avoided from contact with these chemicals during use.

To sum up, improving the durability of color thermal label paper needs to start from many aspects such as selecting high-quality thermal paper, optimizing storage conditions, adopting advanced printing technology and paying attention to protection during use. Through the comprehensive application of these measures, the service life of color thermal label paper can be effectively extended and its good printing effect can be maintained.