What is the process of uv printing?

UV printing is a printing process that uses ultraviolet rays to dry and cure ink. It is necessary to use ink containing photosensitizer in conjunction with UV curing lamp.

UV printing is a printing process that uses ultraviolet light to dry and cure ink, which requires ink containing photosensitizer to cooperate with UV curing lamp. At present, UV ink has covered offset printing, screen printing, inkjet printing, pad printing and other fields. Traditional printing industry generally refers to UV as printing effect process, that is, a layer of varnish (bright, matte, inlaid crystal, glitter powder, etc. ) Apply it to a printed pattern you want.

UV printing is relative to the quick drying of ink, that is, printing with UV ink and irradiation with UV lamp make each color ink dry instantly when passing through the UV lamp, which makes the four-color superposition of CMYK clearer and prevents the ink from merging with each other and blurring the picture. Mainly suitable for plastic materials, because plastic materials do not absorb ink, high cost and are not suitable for printing paper.

Related instructions

Generally speaking, UV is not specially used for lithography, but a radiation curing technology that uses UV light source to irradiate chemicals. The scale "photoinitiator" contained in chemicals is stimulated by UV light source, which makes the "polymer" contained in chemicals adhere and harden in a very short time (shorter than 1 sec).

Internationally, it is classified as "electron beam curing", which is called UV/EB curing.

UV curing can be used in various traditional printing forms, including relief printing, flexographic printing, lithography, screen printing and so on. As long as UV ink is used, the main part can be completed with UV light source. Lithographic UV printing is based on lithographic structure, using UV ink and equipped with UV light source. Of course, some very important matching conditions need to be met at the same time. In addition to printing, using transparent materials for UV glazing is also a widely used glazing method in the market.