Will the performance of PET matte silver thermal label paper change after the storage period?

2026-08-01 09:25
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After the storage period is exceeded, the performance of PET matte silver thermal label paper is likely to change. This is mainly based on the following considerations:


1. Adhesive failure

Thermal label paper is stored for a limited time, and if left too long, the adhesive on it may fail, causing the label paper to dry out and lose viscosity. This change will directly affect the adhesion of the label paper, making it difficult to stick firmly on the target object.

2. The performance of the protection layer deteriorates

The protective layer of PET matte silver thermal label paper plays an important role in protecting the thermal coating and extending the service life of the label paper. However, over time, the protective layer may be affected by environmental factors such as air, temperature, and humidity, causing its performance to decline. This may accelerate the chemical reaction of the heat-sensitive coating, causing the writing on the label paper to fade or fade.

3. Chemical reaction is accelerated

The working principle of thermal paper is to develop color through a chemical reaction that occurs when the thermal coating is heated. However, if the label paper is stored for a long time, the heat-sensitive coating on it may react with oxygen or other chemicals in the air, causing the chemical reaction to accelerate. This accelerated chemical reaction may shorten the shelf life of the label paper, making the writing on it fade or disappear more quickly.

4. Material aging

PET matte silver thermal label paper is a polymer material product, and its material itself will also age over time. After aging, label paper may become brittle and fragile, and it is difficult to withstand operations such as bending and folding in daily use. In addition, aging may also lead to changes in the appearance performance of the label paper, such as transparency and gloss.

Ways to extend storage time

In order to extend the storage time of PET matte silver thermal label paper, the following measures can be taken:

1.Reasonable storage: Store label paper in a cool, dry, ventilated place, away from direct sunlight and high temperature environment. At the same time, pay attention to moisture, mildew, moth and so on.

2.Sealed packaging: Use a well-sealed bag or container to pack the label paper to reduce its contact with air and moisture.

3.Regular inspection: Check the stored labels regularly to find and deal with problems such as moisture, mold, and discoloration in time.

4.Use high-quality label paper: Choose high-quality and stable PET matte silver thermal label paper products to improve their service life and performance stability.


In summary, after the storage period is exceeded, the performance of PET matte silver thermal label paper is likely to change. Therefore, in the process of use, attention should be paid to reasonable storage and regular inspection to ensure the stable performance and use of the label paper.