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7 Tips of thermal label paper quality identification

Thermal label paper quality on the market is uneven, many users do not know how to identify the quality of thermal paper.

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We can identify them in below seven ways:

1.  Apperance

If the paper is very white, it indicates that the protective coating and thermal coating of the paper are unreasonable, which adds too much phosphor powder, and the better paper should be slightly green. If the paper finish is not high or looks uneven, it means the paper coating is not uniform; If the paper seems to reflect a lot of light, it also has too much phosphor added.2.  Coloration

High density of coloration with clear printing letters, are one of the most important properties of thermal paper.

3.  Storability

Inferior thermal paper preservation period is very short, good thermal paper writing generally has more than 2~3 years, and Special thermal paper preservation performance can reach more than 10 years. If it can still maintain clear coloration under the sun exposure for 1 day, which means it is with good storability.

4.  Protective Performance

Some applications, such as labels and bills, require good protective performance, Thermal paper can be tested with water, oil, hand cream, etc

5.  Adaptability of Print Head

Inferior thermal paper will easily cause abrasion of printing head, easy to stick to the print head. You can check this by examining the print head.

6.  Roasting

Use a lighter to heat the back of the paper. If the color on the paper turns brown, it indicates that the heat-sensitive formula is not reasonable. If the black part of the paper has small stripes or uneven color patches, it indicates that the coating is not uniform. Better quality paper should be black with green (with a little green) after heating, and the color block is uniform, gradually fading from the center to the surrounding color.

7.  Contrast identification of sunlight exposure

Apply the printed paper with a highlighter and place it in the sun (this will speed up the reaction of the thermal coating to light), Which paper is faster blackened, it indicates the shorter time it can be stored.


Post time: Jun-14-2022