The characteristic of UV ink is oily ink (also known as ink), and it is mainly used in UV machines. Abbreviated as UV ink.UV ink dries immediately: UV ink has the characteristic of selective absorption of UV light. Drying is influenced by the total energy of UV light source radiation and the distribution of light energy at different wavelengths.

Normally, the diameter of pigment particles in UV ink is less than 1 micrometer, it does not contain volatile organic solvents, has ultra-low viscosity, and no irritating odor, which can ensure that the ink does not block the nozzle during the spray printing process.

The irritating odor of UV ink first comes from its own raw materials (such as monomer diluents, low molecular weight initiators, resin linkers, etc.), which slowly emit under certain conditions; Secondly, after UV ink curing, raw materials such as initiators and resins decompose to produce irritating gases such as aldehydes and sulfur.

The main issue that has the greatest impact on printing technology, printing quality, and post-processing during the use of UV ink is the curing problem of UV ink. Many process quality problems often stem from excessive or insufficient curing of UV ink.

Due to poor adaptability, UV ink often encounters adhesion issues compared to traditional solvent based inks. So, what are the common reasons and solutions? Below is a detailed analysis for everyone: