Roller, blanket or resin plate 

Using UV ink or UV glazing oil may lead to general printing ink roller, blanket or resin material swelling, swelling even worse would be peeling or surface chipping, select the appropriate or the specified UV special blanket and resin version is very important. 

Many UV ink supply chamber of Commerce recommended a range of criteria, such as blankets the Acer nitrification denitrification or Ding processing material may be combined with oily, UV ink or varnish. The natural rubber and poly ethylene oxide material will be enlarged, can not be applied to UV ink and polish. 

The blanket is made of EPDM material is particularly suitable for UV ink and varnish, but also may not be suitable for general Oil-based ink. EPDM cannot use oil refining blanket lotion, lotion should buy special. Similarly, choice of printing machine roller and is based on this principle. Can not often transform the alternating use of UV ink and general oily ink, if you need to change the ink must be cleaned up very clean, remove all possible residues of chemicals. 

UV lamp 

Much of the UV lamp number and strength to make the printing UV ink or varnish dry completely, is required to see the printing speed, ink film thickness and ink color shade. Generally installed UV lights will take into account the type of printing machine and the finished product to install suitable UV lights. 

UV BASF ink and on the design, the use of suitable standard for the "industrial pressure mercury lamp" or "microwave" H light bulbs". If the first single color (such as green), printing standard ink film thickness (1.20-1.40g/m2) in the speed of 100 meters / min, the use of 2 120W/cm in the pressure mercury lamp. If the color concentration is high, the darker the color is printed on the one or two fold, in particular, will increase the difficulty of the whole dry, which is due to UV light is quickly absorbed by the heavy ink pigment. General four-color UV ink drying of the degree of difficulty in order for magenta, yellow, green, black. Therefore, UV color printing in the order should be black, cyan, magenta, yellow. Some of the color is also very difficult to dry, such as green from yellow and blue deployment of; opaque color is also very difficult, because it is reflected back to the UV light. The same metal color, gold, silver also have the same problem. UV mercury lamp life is limited, usually the specification will tell us its maintenance and life, as well as the replacement time.