What is the customization process for three proof thermal paper?

The customization process of three proof thermal paper mainly includes the following steps:

1、 Determine requirements

Specification size: Determine the specification size of thermal paper based on the size of the printer and the changing application scenarios required.

Printing content: Determine the content that needs to be printed on thermal paper, including text LOGO、 The company name, as well as the color tone of these contents and whether there are pictures available for reference.

Shelf life: Determine the shelf life of thermal paper according to application requirements. Generally speaking, the shelf life of ordinary thermal paper can be as long as 3 to 6 months, but after special treatment, the shelf life of three proof thermal paper can be longer.

Three proof performance: Clearly define the specific requirements and standards for three proof (waterproof, oil proof, and wear-resistant).

Core requirements: Determine the type of thermal paper core, such as paper tube or plastic hose, as well as the specific diameter and shape.

2、 Select substrate

Choosing a suitable coating substrate usually involves choosing one of paper, BOPP film (biaxially oriented polypropylene film), or PET film (polyester film). These substrates have good physical properties and chemical stability, which can meet the production requirements of three proof thermal paper.

3、 Configure coating solution

Isolation layer coating solution: Add water and PVA (polyvinyl alcohol) to the isolation layer batching tank, heat and stir to disperse PVA in water. Then add defoaming agent, wetting agent, leveling agent, crosslinking agent, zinc stearate, latex and other components to form an isolation layer coating liquid.

Top coating coating solution: Add water and dispersant to the top coating ingredient tank and stir. Add more filler and continue stirring to disperse the filler. Then add components such as adhesive, wetting agent, dispersant, defoamer, and leveling agent to form the topcoat coating liquid.

4、 Coating and drying

Coating: Add the pre configured coating liquids to the coating machine hopper, and apply the pre coating, topcoat, isolation layer, and topcoat layer in sequence from bottom to top on top of the base paper. During the coating process, it is necessary to control parameters such as coating amount and coating speed to ensure the uniformity and adhesion of the coating.

Drying: The coated thermal paper needs to be dried to remove moisture during the coating process and ensure sufficient bonding between the coating and the base paper. The commonly used drying methods include oven drying or high-frequency drying, and the temperature and time need to be determined according to the formula and process requirements of the coating liquid.

5、 Cutting and packaging

Cutting: The dried three proof thermal paper is cut by a cutting machine to adapt to different application fields and requirements. The cut products can meet the needs of different sizes and shapes.

Packaging: Wrap the cut three proof thermal paper to protect it from damage and facilitate transportation and storage.

6、 Quality inspection and acceptance

Conduct quality inspection on customized three proof thermal paper, including checking whether its specifications, dimensions, printing quality, and three proof performance meet the requirements. After passing the acceptance inspection, it can be delivered for use.

In summary, the customization process of three proof thermal paper includes steps such as determining requirements, selecting substrates, configuring coating liquids, coating and drying, cutting and packaging, as well as quality inspection and acceptance. These steps require strict control over the quality and process parameters of each link to ensure that the quality and performance of the final product meet the requirements.