What are the factors that affect the printing quality of PET matte silver thermal paper?

The factors that affect the printing quality of PET matte silver thermal paper mainly include the following aspects:

1、 Thermal paper's own quality

Thermal coating quality: Thermal coating is a key part of thermal paper, and its quality and uniformity directly affect the printing effect. If the coating is uneven, it can result in uneven color depth during printing, affecting the overall aesthetics. Meanwhile, the chemical formula of the coating is also crucial, as an unreasonable formula may result in a shorter storage time of the printing paper.

Protecting coating quality: The protective coating can absorb some of the light that causes chemical reactions in the thermosensitive coating, slowing down the deterioration of the thermosensitive paper. If the protective coating is uneven or of poor quality, it not only cannot effectively protect the thermal sensitive coating, but also may cause small particles to fall off during the printing process, damaging the thermal sensitive components of the printer and affecting the printing quality.

Paper substrate quality: As the substrate of matte silver thermal paper, PET's quality is equally important. High quality PET materials have good flatness, strength, and weather resistance, which can provide stable support for thermal sensitive coatings. If the substrate quality is poor, it may lead to problems such as poor coating adhesion and unclear printing.

2、 Printer parameters and status

Print head status: The degree of wear, cleanliness, and temperature of the print head can all affect the print quality. Severely worn print heads may cause blurry or uneven printing; The accumulation of dust and paper scraps in the print head can affect the conduction of heat, thereby affecting the printing effect; High or low print head temperature may also cause unclear printing.

Printer parameter settings: including settings for printing density, printing speed, and other parameters that directly affect the printing effect. Improper settings may result in printed content being too light or too deep, affecting overall aesthetics and readability.

3、 Storage and usage conditions

Temperature and humidity: PET matte silver thermal paper needs to avoid prolonged exposure to high temperature and high humidity environments during storage and use. Such an environment will accelerate the chemical reaction of thermal sensitive coatings, resulting in poor printing performance and shortened storage time.

Lighting conditions: Long term exposure to light can also accelerate the deterioration of thermal paper. Therefore, during storage and use, direct sunlight or strong light sources should be avoided as much as possible.

4、 Printing process and technology

Printing pressure: The magnitude of printing pressure can affect the transfer of ink and the degree of paper deformation, thereby affecting print quality. Excessive printing pressure may cause paper deformation and uneven ink penetration; Insufficient printing pressure may result in incomplete ink transfer and unclear printing.

Printing speed: The speed of printing can also affect the printing quality. Excessive printing speed may result in incomplete ink drying and blurry printed content; Slow printing speed may reduce production efficiency and increase costs.

In summary, there are multiple factors that affect the printing quality of PET matte silver thermal paper. In order to ensure the best printing effect, it is necessary to comprehensively consider and optimize multiple aspects such as the quality of thermal paper itself, printer parameters and status, storage and usage conditions, as well as printing technology and techniques.