
Covering film, also known as “film sticking”, “plastic pasting” or “post press over molding”. It is the process of heating, pressing, cooling, and other techniques that apply adhesive to plastic film and paper-based printed materials. Cover the surface of the printed product with a layer of transparent plastic film with a thickness of 0.012-0.020mm (1.2~2 threads) to form a post press processing technology for paper plastic composite printed products.

After lamination, printed products have a thin and transparent film on the surface, which makes the appearance more vibrant, bright, and increases glossiness.
It can improve the strength and stiffness of printed materials, while also protecting the image, making it less susceptible to scratches, more wear-resistant, corrosion-resistant, as well as waterproof and stain resistant.

After lamination, the tensile and moisture resistance of printed products are significantly enhanced, which not only protects the appearance of the printed products but also improves their service life.
After lamination, printed products increase the density and brightness of colors, which can to some extent compensate for printing defects such as insufficient color saturation or inaccurate spot color matching.

The application of film covering is very extensive, such as posters, maps, various cards, handbags, advertising flyers, book and exquisite album covers, cosmetics, fashionable consumer goods, car brochures, exquisite calendars, photos, etc. The laminating process uses plastic film, and due to the use of chemical solutions such as benzene solvents during the processing, it does not conform to the concept of pollution-free, healthy and environmentally friendly printing. After the laminating process, printing paper is difficult to recycle and becomes a pollutant similar to white plastic. Therefore, from the perspective of environmental protection, the laminating process belongs to non environmentally friendly printing technology.

When designers and printing providers choose which process technology to use for surface finishing of printed materials in the future, especially when designing and producing printed materials for foreign manufacturers, they must consider such environmental factors, because some countries have already listed the packaging printed materials produced by such laminating technology as non recyclable and non biodegradable pollutants and banned their import and use. In the packaging containers and product promotional printed materials of internationally renowned brands, we are also seeing less and less laminating technology, replaced by glazing technology.

Lukka was founded in 1970 and has been deeply involved in the field of printing and packaging for nearly half a century. It has always focused on customizing packaging color boxes, packaging cardboard boxes, packaging outer boxes and other products, serving tens of thousands of enterprises in home appliances, digital 3C, logistics and transportation, food, fresh agricultural products, toys and daily necessities.