What are the key elements of the production technology for small roll thermal label paper?

The production technology of small roll thermal label paper involves multiple key elements, which together determine the quality and performance of the product. The following is a detailed analysis of the key elements of production technology for small roll thermal label paper:

1、 Raw paper selection

Quality: Choose high-quality paper as the substrate to ensure the flatness, strength, and printing effect of the paper. This is the foundation for producing high-quality thermal label paper.

Thickness and strength: Paper needs to have a certain thickness and strength to ensure that it is not easily damaged or deformed during printing, transportation, and use.

2、 Preparation of Thermistor Coating

Formula: Thermal sensitive coatings are mainly composed of various chemical substances such as colorless dyes (such as phenols or other acidic substances), colorants, sensitizers, stabilizers, adhesives, etc. The proportion and formula of these ingredients have a significant impact on the color rendering effect, printing speed, durability, and other properties of thermal paper.

Uniformity: The uniformity of thermal sensitive coatings is crucial for the consistency of printing results. It is necessary to ensure that the coating is evenly distributed on the paper to avoid color differences or unclear printing.

3、 Coating process

Coating method: Use a roller or other coating equipment to evenly apply the thermosensitive coating onto the base paper. The selection and control of coating methods have a direct impact on the uniformity and thickness of the coating.

Thickness control: Accurately control the thickness of the coating to ensure consistency and durability of the printing effect. Thick coatings may slow down printing speed, while thin coatings may affect printing clarity.

4、 Drying and solidification

Drying method: After coating, the paper needs to be dried to remove moisture or solvents from the coating. Drying methods include airflow drying, ultraviolet drying, etc., and the appropriate drying method needs to be selected based on the coating composition and paper characteristics.

Curing: After drying, the paper still needs to undergo curing treatment to ensure that the coating firmly adheres to the paper and achieves the best printing effect. Curing treatment can improve the durability and adhesion of thermal paper.

5、 Quality Inspection and Packaging

Quality inspection: Conduct quality inspection on the manufactured thermal paper, including the flatness of the paper, uniformity of the coating, printing effect, and durability. Ensure that each batch of paper meets the prescribed standards.

Packaging: According to customer needs and transportation requirements, perform subsequent processing such as cutting and packaging on thermal paper. The packaging should protect the thermal paper from damage and contamination, and ensure its stability and safety during transportation.

6、 Environmental considerations

Biodegradation: Develop biodegradable thermal paper to reduce its decomposition time in the natural environment and minimize its long-term impact on the environment.

Reduce the use of chemicals: In the manufacturing process of thermal paper, try to minimize the use of harmful chemicals to reduce their potential harm to the environment and human health.

In summary, the production technology of small roll thermal label paper involves multiple key elements such as raw paper selection, thermal coating preparation, coating process, drying and curing, quality inspection and packaging, and environmental considerations. These elements are interrelated and influence each other, jointly determining the quality and performance of thermal label paper. In the production process, it is necessary to strictly control the process parameters and quality standards of each link to ensure the quality and stability of the product.