UV coating

UV coating

The term "UV coating" has various meanings.

Ultra-violet coating of paper

Ultra-violet cured coatings can be applied over ink printed on paper and dried by exposure to UV radiation. UV coatings can be formulated up to 100% solids so that they have no volatile component that contributes to pollution. This high solids level also allows for the coating to be applied in very thin films. UV coatings can be formulated to a wide variety of gloss ranges. UV coating can be most conventional industrial coating applications as well as by silkscreen.

Due to the normally high solids content of UV coating/varnish the surface of the cured film can be extremely reflective and glossy. 80 text and heavier weights of paper can be UV coated, however, cover weights are preferred. UV can be used on smooth, uncoated papers.

UV can be applied on spot locations of the paper or by flooding the page. This coating application can deepen the color of the printed area. Drying is virtually instantaneous when exposed to the correct level of UV light so projects can move quickly into the bindery. Like the other coatings, consult the bindery for projects requiring gluing.

A printed page with UV Coating applied can be very shiny or flattened to a matte finish. A good example of UV coated paper is photo paper sold for home printing projects. UV coatings that are not fully cured can have a slightly sticky feeling.

Ultra-violet coating of glass and plastic

Glass and plastic can be coated to diminish the amount of ultraviolet radiation that passes through. Common uses of such coating include eyeglasses and automotive windows. Photographic filters remove ultraviolet to prevent exposure of the film or sensor by invisible light.

External links

* [http://glossary.ippaper.com/default.asp?hlite=true&querytext=coating&req=knowledge/article/236#Coating About paper coatings from International Paper]


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