What does UV in printing mean?

UV in printing refers to ultraviolet rays. UV printing is a printing process of curing printed matter by irradiating ink with ultraviolet rays. The main components of UV ink are photosensitizer, polymer, pigment and solvent. The photosensitizer will polymerize under ultraviolet radiation, thus curing the ink. Polymer is the main film-forming substance of ink, which determines the performance of ink. Pigment determines the color of ink. Solvents are used to dissolve pigments and polymers and make ink flow.

UV printing has the following advantages:

Fast curing speed: UV ink can be cured in a few seconds under ultraviolet irradiation, while traditional ink takes several minutes to several hours to cure.

UV printing has fast curing speed.

High printing quality: UV ink has good adhesion, weather resistance, wear resistance and gloss, and can print high-quality images and words.

UV printing has high printing quality.

Good environmental protection: UV ink does not need to use solvents, so it has good environmental protection.

UV printing has good environmental protection.

Widely used: UV ink can be printed on various substrates, including paper, plastic, metal, glass and so on.

UV printing has a wide range of applications

The disadvantages of UV printing are:

High price: the prices of UV ink and UV printer are relatively high.

The operation is relatively complicated: the UV printer needs to be used with UV ink, and the operation is relatively complicated.

UV printing has been widely used in packaging printing, label printing, decoration printing and other fields.