What is the production process of transparent thermal sensitive label paper?

The production process of transparent thermal sensitive label paper is a complex and delicate process, mainly including the following steps:

1、 Raw paper preparation

Choosing high-quality paper with a certain thickness and strength as the substrate is to ensure that the paper can maintain stability and durability during the printing process, thus meeting the needs of various application scenarios.

2、 Apply thermal sensitive coating

Thermal sensitive coating is a key component of transparent thermal sensitive label paper, which determines the thermal properties and color rendering effect of the paper.

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. These components can undergo chemical reactions under heating conditions, releasing colors.

Evenly apply the prepared thermosensitive coating onto the base paper, which is an important step in the production process of thermosensitive label paper. Accurate control of coating thickness and uniformity is required to ensure consistent printing results. Usually, manufacturers use rollers or other coating equipment to complete this process.

3、 Drying and curing

After coating, the paper needs to undergo drying and curing treatment to ensure that the coating firmly adheres to the paper and achieves the best printing effect.

There are various drying methods, including airflow drying under low temperature conditions and rapid drying using ultraviolet lamps. These drying methods not only help remove moisture from the coating, but also ensure the gloss and smoothness of the coating.

4、 Add protective layer (optional)

In order to improve the durability and adhesion of transparent thermal label paper, sometimes an additional protective layer is applied on top of the thermal coating.

The protective layer can absorb some of the light that causes chemical reactions in the thermal sensitive coating, slow down the deterioration of the printing paper, and protect the thermal sensitive components of the printer from damage.

5、 Cutting and packaging

Cut the paper according to the specific requirements of the customer to obtain label sizes that meet the requirements.

Pack the sliced labels to meet different market demands.

6、 Quality inspection

Throughout the entire production process, strict quality testing is required for raw materials, semi-finished products, and finished products to ensure that the quality of transparent thermal label paper meets standards and customer requirements.

The testing content includes the flatness of the paper, the uniformity of the coating, the printing effect, and durability.

In summary, the production process of transparent thermal sensitive label paper requires strict control of each link to ensure product quality. By continuously optimizing production processes and technological means, the performance of thermal paper can be further improved and costs can be reduced to meet the diverse needs of the market.