There are two common types of self-adhesive labels: PET and thermal paper, both of which are suitable for different types of label printers. Usually, printers that print self-adhesive labels made of PET are thermal transfer printers, and printers that print thermal self-adhesive labels are usually thermal label printers.

the printing principle of thermal transfer PET self-adhesive label is that the carbon powder coating on the carbon tape is transferred to paper or other materials by heating through the working principle similar to the printing head of fax machine. Because the coating material on the carbon tape can be selected according to the needs, it produces strong adhesion, and the selection of printing media can better ensure that the printed handwriting is not affected by the outside world.

PET self-adhesive label

heat-sensitive self-adhesive label is a kind of special coated paper, which is based on ordinary paper and coated with a layer of heat-sensitive chromonic layer, and the chemical reaction is in a "latent" state. When the thermal paper meets the hot print head, the color developer and leuco dye at the place printed by the print head react chemically to change color, forming pictures and texts.

Thermal paper self-adhesive label

Comparing the advantages and disadvantages of thermal transfer label printer and thermal transfer label printer:

Most materials printed by thermal transfer technology rely on imported materials to achieve printing effect, and the cost is higher than that of thermal transfer printing, so the price of label tape required by thermal transfer label printer is slightly higher;

as far as printing effect is concerned, the printing effect of thermal transfer label printer is more weather-resistant, and the label content can be waterproof and anti-greasy, and the lasting and clear effect is stronger.