How to identify the pros and cons of thermal label paper?
Thermal printing paper is generally divided into three layers: the bottom layer is a paper base, the second layer is a heat-sensitive coating, and the third layer is a protective layer, which is a heat-sensitive coating or a protective layer that mainly affects the quality of the thermal printing paper.
Thermal coating: If the coating of the thermal paper is not uniform, the color of the printed label will be different in color and the quality will be significantly reduced. If the chemical formula of the thermal coating is unreasonable, it will affect the storage time of the thermal printed label;
Protective coating: The protective coating absorbs some of the light that causes the thermosensitive coating to react chemically, slows the deterioration of the paper, and protects the thermal element of the printer from damage. If the protective coating is not uniform, not only the protection of the heat-sensitive coating is greatly reduced, but even the fine particles of the protective coating are peeled off during the printing process, and the thermal element of the printer is rubbed, resulting in damage to the printed heat-sensitive element.
At present, the thermal label paper on the market is not uniform, and many users are not sure how to identify the quality of thermal paper. Here the editor will talk to you about how to identify the pros and cons of thermal label paper.
1. Appearance: If the paper is very white, it means that the protective coating and heat-sensitive coating of the paper are unreasonable. If too much phosphor is added, the better paper should be slightly greenish; if the paper finish is not high or does not look like Uniform, indicating that the paper coating is uneven; if the paper looks very reflective, it is also adding too much phosphor, the quality is not very good.
2, fire roast: use a lighter to heat the back of the paper, if the color on the paper after heating is brown, indicating that the thermal formula is not reasonable, the print writing time may be shorter; if the black part of the paper is small Uneven stripes or color blocks indicate uneven coating. The paper of better quality is black green (with a little green) after heating, and the color is even, and the color gradually fades from the center to the periphery.
3, sunlight exposure contrast identification: the printed paper is painted with a highlighter and placed in the sun under the sun (this can accelerate the thermal coating response to light), which paper is the fastest black, indicating the more time can be saved short.
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