UV Varnish Selection Method

UV glazing is UV glazing, and the UV drying (curing) glazing coating (UV glazing coating, UV glazing coating) is applied on the surface of the printed matter. Under UV light, the glazing oil is hardened after curing and forms on the surface of the printed matter. A layer of film, so that the print surface gloss, wear resistance, moisture and moisture.

In the face of a wide range of UV Varnish on the market, how to choose the UV Varnish that suits their products has become a headache for printing companies. To this end, we will introduce UV coatings from two aspects in order to guide printers to make better choices.

Selection method

There are many types of UV varnish, which can be divided into UV varnish UV varnish, oil varnish UV varnish, and both UV varnish, depending on the color of base ink; Off-line UV varnish, on-line UV varnish, or both UV varnish.

Coating on UV inks, because the compositional structure of UV ink and UV coating is basically the same, so overprinting, dryness, gloss, adhesion, odor, post processing adaptability, rub resistance, yellowing, etc. All aspects can get better results.

The application of UV varnish on oily inks has the advantages of reducing the dusting process and improving rubbing resistance, but it is necessary to select the type of UV varnish that is suitable for the base oily ink, otherwise it will affect overprinting, luster, and dryness. Adhesion and so on.

When using UV varnish, choose a suitable varnish according to the production conditions, post-processing steps, and the end use of the product. For example, there are requirements for hot stamping anodized aluminum in the post-processing process. When selecting a UV varnish, you should select a UV varnish that is suitable for hot stamping anodized aluminum. It is best to select the glue and aluminum foil in advance to adapt it. test. In general, in the box making process, the printed matter is conveyed at a high speed on the folder-gluer or on the packaging line, and it needs to slide without stopping. In order to impart good slidability to the printed matter, UV polishes such as polyolefin waxes, liquid liquid waxes, and silicon can be used to improve the slipperiness of the printed product surface.