UV Offset Printing Ink
Variety
UV offset printing inks refer to inks suitable for offset printing machines. Offset printing machine is also called flatbed offset printing machine, solid UV offset printing ink is also called flat printing ink. According to different types of offset presses, it can also be divided into four types: offset plastic ink, offset metal ink, offset frosted ink, and offset scented ink.
production
UV offset printing ink is a high-viscosity slurry fluid. The resin used in the production of offset printing ink binder mainly includes epoxy acrylate, urethane acrylate and so on. Depending on the boiling range, there are many different grades of ink oil. The colorants of UV offset printing inks are generally pigments, including organic pigments such as magenta, titanium blue, and inorganic pigments such as titanium dioxide and carbon black. After mixing the binders, pigments, fillers and additives, they are dispersed on the grinder to obtain the finished UV offset printing ink.
application
As the printing speed of offset presses is getting faster and faster, printing operators and printed matter users have higher and higher requirements for product environmental performance. Therefore, ink manufacturers must constantly improve the quality of offset printing inks. It requires good ink transfer performance, high tinting strength, fast post-printing drying speed, long non-skinning time on the machine, and low heavy metal content in ink products. To meet these requirements, it is necessary to make improvements in raw material selection, formula technology, production technology, production environment, etc., and strictly control the production process.
UV offset printing ink has a high solid content, and the ratio of pigment to binder before curing is similar to that of ordinary offset printing ink, so it was first applied in offset printing. UV offset printing ink curing has no penetration problem, not only can be printed on paper, but also can be printed on non-absorbent printing materials.
