Buy thermal paper tips

There are many thermal fax machines on the market that use thermal paper. Although thermal paper is cheap, there are still many fake and inferior goods. The characteristics of these products are: greatly shorten the original print retention period of the original. This is because the coatings that pretend to be fake and inferior goods are very thin, and they are simply damaged and affect stability. If the storage environment is not good, these products can even present that the unused thermal paper is too early to react with the surrounding environment. The state of use.

According to the author's experience, if the thermal paper is exaggerated, it is clarified that this is a serious product for cutting corners. Because the coating material of the thermal paper is not pure white, the white color is completed by adding too much fluorescent agent. Like some copy papers, these additives will react with the thermal coating of the thermal paper. In addition to affecting the stability, it is also possible to form a heat-sensitive coating thickness that does not meet the demand and shorten the retention period of the printing effect. The appearance of a good thermal paper can be seen as a little greenish or dark green. The paper is probably lubricated as much as possible, and the consistency and stability of such a commercial coating are good.

In addition, at the time of inspection, we may use a lighter to heat the reverse side of the paper for a moment, artificially simulate the printing (the thermal coating is changed by heat), if the thermal paper is heated, some color changes are very uniform, indicating that the product is good. If the color is very light, it is very common to clarify the quality of the product. If the ambient temperature is high and there is no lighter, you can use your nails to draw on the paper. Some of the scratches have the same color change effect and can be used for your purchase.

As for the retention time, you can use your nails to scrape the paper. In contrasting intense light and contrasting temperatures, the faster the discoloration, the more unstable it will be. The retention time will not be too long, and the application of this product will be clarified. The layer thickness is not enough.

Referring to the above methods, I hope everyone can pick good quality thermal paper.