What are the main components and structural composition of three proof thermal paper?

The main components and structural composition of the three proof thermal paper are as follows:

1、 Main components

The main components of three proof thermal paper usually include key parts such as paper substrate, thermal coating, and three proof coating. These components collectively determine the performance and characteristics of the three proof thermal paper.

Paper substrate: This is the basic part of thermal paper, providing stable support for printing. The texture, thickness, and strength of the paper substrate can all affect the overall performance of thermal paper.

Thermal sensitive coating: Thermal sensitive coating is one of the key parts of three proof thermal paper, which is responsible for chemical reactions when heated, displaying text or patterns. The formula and process of thermal sensitive coatings have a significant impact on printing performance and service life.

Three proof coating: The three proof coating is the core of the three proof thermal paper, which endows the paper with waterproof, oil resistant, and stain resistant (or PVC resistant) properties. Three proof coatings usually use special chemical formulas that can effectively block the penetration of moisture, grease, and other stains, thereby protecting printed content from damage.

2、 Structural composition

Structurally, three proof thermal paper is usually composed of multiple layers, which are tightly combined to form a complete three proof thermal paper.

Bottom layer (paper substrate): This is the bottom layer of thermal paper, usually made of high-quality pulp, providing stable support for printing. The texture of the paper substrate is uniform and the strength is moderate, which can ensure the stability and durability of thermal paper during the printing process.

Intermediate layer (thermosensitive coating): The thermosensitive coating is located on top of the paper substrate and is a key part of thermosensitive paper. It is usually composed of colorants, adhesives, pigments, and other components that undergo chemical reactions when heated, resulting in the display of text or patterns. The formula and process of thermal sensitive coatings have a significant impact on printing effects, such as clarity and color vividness.

Surface layer (three proof coating): The three proof coating is located on the outermost layer of the thermal paper and is the key to protecting the printed content. It is usually made of special chemical materials that can effectively block the penetration of moisture, grease, and other stains. The existence of the three proof coating makes the three proof thermal paper have excellent waterproof, oil proof, and anti fouling (or PVC resistant) properties, thereby extending the readability and service life of printed content.

In addition, some three proof thermal paper may also contain other functional layers, such as anti-static layers, anti oil layers, etc., to enhance its overall performance. The existence of these functional layers enables the three proof thermal paper to better adapt to various complex usage environments and meet the different needs of users.

In summary, the main components and structural composition of the three proof thermal paper jointly determine its excellent waterproof, oil proof, stain resistant (or PVC resistant) and other properties. These properties make the three proof thermal paper have broad application prospects in various fields.