Everyone knows that the thermal label paper is a paper that is treated with a highly heat-sensitive heat-sensitive coating. The easiest way to test the heat-sensitive paper is to use a fingernail to force it across the paper and leave a black scratch on it. The surface coating on the face material is in direct contact with the hot charcoal head, and the chemical reaction becomes black due to the heat, thereby revealing the text to be printed. We know the concept of thermal paper labeling. What are the other applications? What is the role of super? The following explains the application of thermal paper labels in label printing.
Thermal paper labels are classified into two types, protective layer and non-protective layer. The protective layer is on top of the thermal layer. The purpose is to protect the heat-sensitive layer, resist chemical corrosion, and prevent label contamination (such as hand sweat marks and blood bank use. The blood on the label, etc.) and the purpose of protecting the print head. The heat-sensitive coating can be designed with different activation temperatures as needed to suit the needs of different performance printers. At present, most of the thermal paper labels are widely used in supermarkets, shopping malls, fruit stores, bakeries and other places. When the print head is under the action of the heat of the print head, the heat-sensing part of the thermal paper label changes ink (chemical reaction occurs between the leuco dye and the color-developing agent to produce color), and the non-heat-sensing part does not change color, thereby forming a character or a bar code to achieve printing. the goal of.