Offset Printing Partial UV Coating Effect/Spot LED UV Varnish

Offset Printing Partial UV Coating Effect/Spot LED UV Varnish

According to the needs of the bright effect of the printed products, apply partial varnish coating to the prominent parts of the trademarks and packaging prints. Compared with the surrounding patterns, the glazing pattern appears bright, bright and three-dimensional, which can produce a unique artistic effect. So it is very favored by the customers of various countries.

Overview of partial uv varnish
Part of the UV coating is a kind of surface finishing technology of printed matter. It is named because it uses UV varnish with high brightness, transparency and abrasion resistance to selectively varnish the printed graphics. While highlighting the theme of the layout, it also improves the surface decoration effect of the printed product. Partial UV is mainly used in the finishing of book covers and packaging products to achieve the purpose of making printed products more beautiful，just like icing on the cake.

UV effect in offset printing industry.
At present, some common UV varnish effects include: partial gloss oil, partial matting oil, partial matte, partial colorful, partial refraction, partial wrinkle and partial ice effect.

The incomplete UV varnish printing effect can be implemented after coating, or it can be directly varnished on the printing material paper. However, in order to highlight the effect of local varnishing, it is usually done after the printing material is coated, and the matte film is mostly used, accounting for about 80% of the local UV varnishing products. The biggest difference between the partial varnishing effect and the full-plate varnishing effect is that one is the need to make a printing plate, and the other is that there is a certain registration requirement for the varnishing equipment. There are three main elements for the partial UV varnishing effect, namely the varnishing plate, equipment registration and curing equipment. In order to ensure that part of the UV varnishing area is consistent with the size of the printed graphics, the photosensitive imaging method should be used when making the varnishing plate.

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