Does the different surface treatment of self-adhesive coated paper have a big impact on the printing effect?

Different surface treatment of self-adhesive coated paper on the printing effect is really large, mainly reflected in the following aspects:

1. Ink absorption and ink adhesion

Surface roughness: Increasing the surface roughness of coated paper through emery cloth or raising processing can make ink printing easier to adhere and transfer, thereby improving the printing effect. The surface roughness increases, and the combined area of the ink and the paper increases, which is conducive to the adhesion and drying of the ink and the reduction of the dirty phenomenon.

Coating treatment: The surface of coated paper usually has a layer of coating, the nature of the coating has a direct impact on ink absorption and ink adhesion. Some special treatment of coated paper, such as mirror coated paper, the surface coating may be too dense, resulting in relatively poor ink absorption. In this case, it is necessary to adjust the ink formula or printing process, such as the appropriate addition of viscosity reducer, increase the printing pressure, etc., to ensure the printing quality.

2. Printing quality and stability

Surface strength: The surface strength of coated paper refers to the bonding strength between surface coating particles and between the coating and the base paper. When the surface strength is low, it is easy to produce hair loss and powder loss in the printing process, which affects the printing quality and stability. Therefore, it is necessary to improve the surface strength of coated paper to ensure good printing results.

Moisture content: The moisture content of coated paper is also one of the important factors affecting the printing effect. Improper moisture may lead to bubbling, especially in high-speed rotary printing. Therefore, the selection of moderate water content and good temperature resistance of coated paper is very important to prevent bubbling phenomenon and improve printing quality.

3. Color reproduction and gloss

Color restoration: Different surface treatment of self-adhesive coated paper has a different ability to restore color. Coated paper with moderate surface roughness and uniform coating is usually able to better restore color, making the printed matter colorful and natural.

Gloss: High gloss paper such as mirror coated paper can give the print a higher gloss, improve the visual effect. However, in some cases, such as when the vehicle speed is too fast or the ink viscosity is too high, it may lead to a reduction in gloss. Therefore, in the printing process, it is necessary to reasonably control the speed and ink viscosity to ensure that the gloss of the print achieves the desired effect.

4. Special effects and process requirements

Special effects: Some special surface treatment of self-adhesive coated paper, such as matte treatment, hot stamping treatment, etc., can meet the specific process needs, give the print a unique visual effect and texture.

Process compatibility: Different surface treatments may affect the compatibility of the printing process. For example, some specially coated coated paper may not be suitable for some printing methods or ink types, so it is necessary to consider the selection of paper and printing process.

In summary, the impact of different surface treatments on the printing effect is multi-dimensional, including ink absorption and ink adhesion, printing quality and stability, color restoration and gloss, and special effects and process requirements. When selecting self-adhesive coated paper, various factors need to be comprehensively considered according to the specific printing needs and process conditions to ensure the best printing effect.