How to judge the quality of long-acting heat-sensitive label paper?

To judge the quality of long-acting heat-sensitive label paper, you can consider it from the following aspects:

First, appearance inspection

Color and gloss: Good quality long-lasting heat-sensitive label paper should be slightly green, not too white. Too white paper may add too much phosphor, affecting print quality and storage time. At the same time, the surface of the paper should be smooth and smooth, without obvious defects.

Coating uniformity: By observing the gloss and reflected light on the surface of the paper, you can initially determine whether the coating is uniform. Paper with uneven coating may have different shades of color when printed.

Second, performance test

Waterproof and oil-proof test: Put the printed label paper into water or grease, and observe whether it can keep the handwriting clear and does not spread. Long-acting heat-proof label paper should have excellent waterproof and oil-proof properties.

Scratch resistance test: Gently scratch the surface of the label paper with a fingernail or a hard object to see if it is easily damaged or blurred. Good quality label paper should have strong scratch resistance.

High and low temperature resistance test: Place the label in a high or low temperature environment to observe whether it will be deformed, discolored, or illegible. Long-acting heat-sensitive label paper should be able to adapt to different temperature environments within a certain range.

Third, print effect evaluation

Clarity and contrast: Printed text and bar codes should be clear and easy to read, with moderate contrast and no blurring or smudging.

Color stability: Observe whether the printed text will fade or change color after a long time of storage. Long-acting heat-resistant label paper should have good color stability.

Fourth, professional testing and certification

Check the test report: find out whether the label paper has passed the relevant quality testing certification, such as ISO, SGS and other institutions. These certifications usually prove that the label paper has met certain standards in terms of quality, performance and safety.

Consult a professional: If necessary, you can consult a professional or technician in the thermal paper industry for more professional evaluation and advice.

Fifth, actual use feedback

User experience evaluation: Refer to the actual feedback and evaluation of other users to understand the performance of the label in actual applications. This can be done by looking at user reviews on e-commerce platforms, industry forums, or discussions on social media.

To sum up, judging the quality of long-acting heat-sensitive label paper needs to be comprehensively considered from many aspects. Through multiple dimensions such as appearance inspection, performance testing, printing effect evaluation, professional testing and certification, and actual use feedback, the quality level of label paper can be more accurately evaluated.