What is the function of Over Intended Varnish Top Varnish? What are the differences in their roles?

Publish Time: 2025-01-27

Over Precision Varnish (also known as Varnishing or Varnishing) and Top Varnish are both used in the printing industry to enhance the appearance and protective performance of printed materials, but there are some differences in their functions and application scenarios.

The function of Over Precision Varnish

Enhance glossiness: Gloss coating can form a smooth and transparent film on the surface of printed materials, thereby increasing their glossiness and making them look more shiny.

Improving smoothness: Through glossy overprinting, the surface smoothness of printed materials is enhanced, resulting in a more delicate touch and outstanding visual effects.

Protective function: This layer of varnish film can protect printed materials from wear, contamination, and other damages, extending their service life. At the same time, it can prevent printed materials from fading and maintain the brightness of colors.

The function of Top Varnish

Beautification effect: Polishing can also form a transparent film on the surface of printed materials, increasing their glossiness and brightness, making the printed materials look more beautiful.

Improving texture: Printed products after polishing treatment have a visually more textured appearance, which can attract consumers' attention and enhance the product's market competitiveness.

Moisture and stain prevention: The transparent film formed by polishing can also play a role in moisture and stain prevention, protecting printed materials from moisture and stains.

Differences

Application scenarios:

Gloss printing is usually used for printed materials that require highlighting specific areas or overall glossiness, such as packaging boxes, brochures, etc. Glazing is more widely used for beautifying and protecting various printed materials, including books, magazines, posters, etc.

Process details:

Light oil overlay printing may involve more complex processes, such as local overlay printing, special effect overlay printing, etc., to meet specific design requirements. The polishing process is relatively simple, but it can also be treated locally or as a whole as needed.

Effect difference:

The glossiness formed by glossy overprint is usually brighter, and the glossiness can be adjusted according to the needs. The glossiness formed by polishing is relatively softer, but it can still significantly enhance the visual effect of printed materials.

Both Over Precision Varnish and Top Varnish play important roles in the printing industry, but there are some differences in their roles and application scenarios. When choosing which process to use, it is necessary to weigh the specific printing and design requirements.