What are the special requirements for thermal label paper for printing barcodes?

Thermal label paper for printing barcodes has some special requirements, which are mainly based on its usage environment and functional requirements. The following is a detailed summary of these special requirements:

1、 Material and Characteristics

High thermal sensitivity coating: The surface of thermal sensitive label paper is treated with a high thermal sensitivity coating, which contains adhesive, color developer, colorless dye and other components. It can undergo a chemical reaction and change color when encountering a heated print head, forming graphics and text.

Waterproof and oil resistant: Ordinary thermal paper labels are not waterproof or oil resistant, but thermal label paper used for printing barcodes usually needs to have certain waterproof and oil resistant properties to ensure that the barcode remains clear and readable in humid or oily environments. Especially for the three proof thermal sensitive adhesive label paper, its surface raw materials have high glossiness and good smoothness. The printing paper surface is flat and easy to print, with "three proof" characteristics such as waterproof, oil resistant, and scratch resistant.

Durability: Thermal label paper needs to be able to maintain the clarity of barcodes for a long time, and not easily fade or blur. Therefore, when choosing label paper, it is necessary to consider its durability and stability.

2、 Dimensions and specifications

Size selection: The size of thermal label paper needs to be selected according to actual needs. Different industries and application scenarios require different label sizes, with common sizes including 20mm x 30mm, 30mm x 50mm, 40mm x 60mm, 50mm x 70mm, etc.

Specification adaptation: Different printing devices also have specific requirements for the specifications of label paper. Therefore, when selecting label paper, it is necessary to ensure its compatibility with the printing equipment used.

3、 Viscosity and adhesion

Viscosity selection: The viscosity of label paper refers to the adhesion between the label and the object being pasted. When selecting label paper, it is necessary to choose the corresponding viscosity of the label paper based on the different materials, surface conditions, temperature, and other factors of the object being pasted. Common viscosities are divided into three types: weak viscosity, medium viscosity, and strong viscosity.

Good adhesion: The thermal label paper used for printing barcodes needs to be able to firmly adhere to the object being pasted, without easily falling off or shifting, to ensure the accuracy and readability of the barcode.

4、 Printing effect and clarity

High definition: Thermal label paper used for printing barcodes needs to have high definition to ensure that the information in the barcode can be accurately scanned and recognized.

Printing fluency: Thermal label paper needs to be delicate and not lose powder to ensure smooth formation of clear images and text during the printing process.

5、 Environmental Protection and Safety

Environmentally friendly materials: Some thermal label papers are made of environmentally friendly materials, which can be recycled and reused, in line with modern environmental protection concepts.

Safety: Thermal label paper needs to ensure that it does not pose any harm to the human body or the environment during use, such as non-toxic, harmless, and non irritating odors.

In summary, thermal label paper for printing barcodes has special requirements in terms of material, size, viscosity, printing effect, and environmental safety. When selecting label paper, it is necessary to consider the actual needs and usage environment comprehensively to ensure that the printed barcode can be accurately and clearly recognized and used.