Solvent for water-based ink and UV ink.

    Ultraviolet curing UV ink refers to the use of ultraviolet light of different wavelengths and energies to make the ink film and dry the ink under the UV irradiation of the UV ink manufacturer. Using different ultraviolet spectra, different energy can be generated to polymerize the monomers in different ink binders into polymers, so the color films produced by UV ink manufacturers have good mechanical and chemical properties.

UV ink manufacturers

The main advantages of UV ink are: (1) no solvent; (2) fast drying speed and low energy consumption; (3) good gloss and bright colors; (4) water resistance, solvent resistance and good wear resistance. The photoinitiator in UV ink is a compound that is susceptible to light excitation. After absorbing the light, it is excited into free radicals, and the energy is transferred to the photosensitive molecules or photocrosslinking agent, so that the UV ink undergoes photocuring reaction. UV ink has become a more mature ink technology, and its pollutant emissions are almost zero. In addition to being solvent-free, UV inks have the advantages of being difficult to paste, clear dots, bright and bright ink colors, excellent chemical resistance, and low consumption.

Water-based UV ink is a new research direction in the field of UV ink. The viscosity of the prepolymer in ordinary UV ink is generally very large, and it needs to be diluted with an active diluent. The diluent acrylic compounds used have varying degrees of skin irritation and toxicity. Therefore, while developing low viscosity prepolymers and low toxicity active diluents, another development direction is to study water-based UV inks, that is, water and Ethanol, etc. are used as diluents. UV ink manufacturers have been successfully developed and applied in some printing.

In addition, the alcohol-soluble ink, which mainly plays a role in flexo printing, is also a kind of ink with little pollution. It is mainly used in food, medicine, beverages, tobacco and alcohol, and packaging and printing of daily necessities in contact with the human body.