What is the production process of PET matte silver thermal paper?

The production process of PET matte silver thermal paper involves multiple steps and fine chemical treatment. The following are the main production process steps:

1、 Basic material preparation

PET film selection: Choose high-quality PET film as the substrate to ensure its flatness, strength, and chemical stability to meet the high requirements of label paper.

2、 Preparation of Thermistor Coating

Formula design: Based on the performance requirements of PET matte silver thermosensitive paper, design the formula for thermosensitive coating, including the proportions of colorless dye, color developer, sensitizer, filler, adhesive, stabilizer and other components.

Coating preparation: Mix the ingredients in the above formula evenly to prepare a thermosensitive coating. This step requires strict control of the proportions and mixing conditions of each component to ensure the stability and printing effect of the coating.

3、 Coating and drying

Coating: Apply the prepared thermosensitive coating evenly onto PET film to form a thermosensitive coating. During the coating process, it is necessary to control the thickness and uniformity of the coating to ensure consistency in the printing effect.

Drying: After coating, dry the paper to firmly adhere the coating to the PET film. Drying methods can include airflow drying, rapid drying with ultraviolet lamps, etc., depending on the properties and process requirements of the coating.

4、 Matte silver texture treatment

Surface treatment: In order to give PET matte silver thermal paper a matte silver feel, special treatment is required after the thermal coating is dried. This may include matte coatings, embossing processes, or other surface treatment techniques. These treatments can not only enhance the visual effect of the paper, but also increase its wear resistance and fingerprint resistance.

5、 Quality Inspection and Packaging

Quality inspection: Conduct quality inspection on the finished PET matte silver thermal paper, including the flatness of the paper, the uniformity of the coating, the printing effect, and the visual effect of the matte silver texture.

Packaging: Packaging PET matte silver thermal paper that has passed quality inspection to meet different market demands. During the packaging process, attention should be paid to protecting the flatness and coating of the paper to avoid damage during transportation and storage.

6、 Special process (optional)

Add protective layer: In some cases, to improve the durability and adhesion of PET matte silver thermal paper, an additional protective layer can be 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.

In summary, the production process of PET matte silver thermal paper includes steps such as preparation of base materials, preparation of thermal sensitive coatings, coating and drying, matte silver texture treatment, quality inspection and packaging, and optional special processes. These steps together constitute the production process of PET matte silver thermal paper, which has excellent printing performance and visual effects, and is widely used in label production in various industries.