Glazing refers to the application or printing of a layer of colorless and transparent ink or raw material on the surface of the printed matter (commonly known as “glazing oil”). After drying or even calendering, it greatly increases the surface gloss and smoothness of the printed matter. , highlighting the grade of printed matter. Secondly, glazing can improve the wear resistance of the printed surface and protect the graphic of the printed matter. For the printed products that have been processed, such as,paper cosmetic box, the common practice is to use the silk screen UV varnishing process and the coating glazing process, while the more advanced glazing process is completed by online operation and printing. Due to the different materials and glazing methods, Of course, these glazing effects are also different.

The most important purpose of glazing is to add value to the packaging prints. Because the surface has a bright luster and a three-dimensional effect, the appearance of the texture is more refined, and it is easier to become a visual focus in a wide range of merchandise furnishings.
On the surface of paper box , according to the way of light coating, there are many kinds of glazing types, such as: coating glazing, UV glazing, flexo glazing, etc., then when we choose varnish How to choose?

The quality of the printed matter depends to a large extent on the glazing oil chosen. The varnish is divided into three categories: oily varnish, waterborne varnish and UV varnish. Oily varnishes contain volatile solvents that have a negative impact on health and are not conducive to environmental needs. In contrast, waterborne varnish and UV varnish will occupy a larger share in the market, whether it is UV glazing, water glazing, ordinary glazing or special processing, each has its own advantages and disadvantages. Certain market demand, but water-based glazing is undoubtedly the most advantageous because of its health and environmental protection, low price and wide range of uses.

In developed countries, water-based glazing has become the mainstream of glazing technology. The surface of paper treated with water-based varnish can be post-treated, such as local UV, hot stamping, gold sweeping and embossing, whether it is light or no light. Waiting for the finishing work, but the gloss of the water-based glazing after glazing is about 70%, while the gloss of the UV varnish can reach about 90%, so the process effect is obviously different.

The most used in the market is UV varnish. According to different printing materials, UV varnish can be divided into thin glazing, thick paper, gold and silver cardboard and other special glazing oil. When using UV varnish, you can not add thinner, otherwise it will be printed. The product does not reach the expected luster. In the actual operation, since the UV varnish must be heated to 50 ° C before use, there are still some defects in safety production.

TOP&TOP has been cultivating in the field of printing and packaging for more 10 years. It has always focused on the customization of packaging boxes, packaging cartons, high end cosmetic paper box, luxury perfume paper box ,shopping bags,children book printing.