Compared to UV ink is a rapid development of new green environmental protection printing ink, and the traditional volatile ink, UV ink has a fast curing, curing temperature is low, do not contain volatile organic solvent, little influence on environment, low energy consumption, covers an area of small, high efficiency advantages. 

For UV ink, we can also make a more detailed classification of it. From the use of points, UV ink is mainly divided into two categories: UV printing ink and UV printed circuit board printing ink. The UV printing circuit board printing ink is mainly used for printed circuit board of the electronic industry, and UV ink printing is the printing industry more common usage for a variety of offset printing, embossed (including flexo printing, gravure printing, screen printing and ink-jet printing field. 

Advantages and classification of UV ink 

In UV printing ink, mainly contains the following categories: 

1.UV offset ink 

With the benefits of UV curable offset ink is in the production process do not need dusting. Only in this way can keep clean production environment, and avoids the trouble some finishing, such as the impact of polishing, coating effect, but also can line processing can be performed. 

In addition to the above characteristics, UV curable offset ink can also prevent ink crust, exempted after the shutdown of an offset printing press troubles, also can accelerate the drying rate and the characteristics in the printing and packaging is very important. 

UV curable offset ink in curing does not need to produce penetration, which makes it can be used in non - absorption of printer materials, such as a variety of card, this is ordinary ink can't be used in the field. 

UV ink also has a bright color, strong wear resistance characteristics, which makes it more suitable for the book's cover, or packaging printing and other occasions. 

In addition, UV offset printing ink is still a variety of postal, paper printing in a certain proportion of. These excellent characteristics lead to the use of UV ink in a foreign country is the most widely used UV offset printing ink. 

2 UV letterpress ink 

UV is mainly used in letterpress printing ink label printing, can also be used for packaging and printing, such as printing on hose. 

In the flexo printing, especially in the narrow range of flexo printing, we pay more attention to the less time, the friction resistance is stronger, the printing quality is better. 

Letterpress UV ink printing feature is high definition of the screen dots, dot gain size, bright ink, a grade higher than the use of water-based ink printing. 

3 UV gravure ink 

With the social demands on environmental protection growing, gravure printing industry is also more and more began using UV ink, especially for in the food packaging industry enterprises, now using UV gravure printing ink is almost the only choice. 

4 screen printing UV ink 

And in the field of screen printing, UV ink advantage more obvious, because UV ink only under UV light to cure, which leads in the ordinary silk screen printing ink is crazy plugging problems disappeared. And UV ink curing speed, low temperature, thoroughly solves the silk screen printing ink in previous long-standing problem, blocking the contradiction between the network and the ink drying rate. 

In addition, the screen printing and gravure printing, flexo printing, offset printing unit composed of combination printing machine is a trend in the development of printing machine, screen printing unit must use UV ink.