PET thermal subsilver label paper

Thermal subsilver label paper works similarly to thermal paper, mainly relying on the chemical reaction of the thermal coating when heated to produce an image. Specifically, the heat-sensitive silver label paper is generally divided into three layers: the bottom layer is the paper base, the second layer is the heat-sensitive coating, and the third layer is the protective layer.

During the printing process, a semiconductor heating element on the print head heats and touches the thermal coating of the thermal subsilver label paper. When heated to a certain temperature (usually around 85 ° C), the chemicals in the heat-sensitive coating react, causing a color change that forms the desired image or text on the label paper.

This chemical reaction is carried out at a certain temperature, and high temperatures will accelerate this chemical reaction. Therefore, the thermal printer selectively heats the thermal subsilver label paper at a certain position, and the corresponding graphics can be produced. The heating is provided by a small electronic heater on the print head in contact with the heat-sensitive material. The heater arrangement in the form of square points or strips is logically controlled by the printer, and when driven, a pattern corresponding to the heating element is generated on the thermal paper.

In addition, the protective layer of the heat-sensitive silver label paper plays a role in protecting the heat-sensitive layer, resisting chemical corrosion, preventing label contamination and protecting the print head. This makes the heat-sensitive silver label paper with wear resistance, strong weather resistance, high temperature resistance, corrosion resistance and other characteristics, in a variety of environments can maintain good performance.