The use of UV ink or UV varnish may cause the general printing ink roller, blanket or resin plate to swell. In more serious cases, it may cause peeling or surface cracking. Therefore, it is very important to choose an appropriate or designated UV special blanket and resin plate. important.
Many UV ink suppliers will recommend a standard, such as rubber blankets with nitrated or nitrated materials can be used with oil, UV ink or varnish. The natural rubber and polymerized ethane materials are not suitable for UV inks and varnishes.
The EPDM blanket is suitable for UV inks and varnishes, but not for general oil-based inks. EPDM blankets cannot use petroleum-refined lotions. Special lotions should be purchased. It is also the principle to choose the ink roller of the printing machine. You can't often change the UV ink and the general oily ink. If you need to change, you must remove all residual chemicals.
The UV lamp and intensity are sufficient to completely dry the UV ink or varnish of the printed matter, which must be determined according to the printing speed, ink film thickness and ink color. The installation of UV lamps must consider the type of printing machine and the finished product and install suitable UV lamps.
BASF uses suitable "medium pressure mercury lamps for industrial use" or "microwave H bulbs" in the design of UV inks and varnishes. If the first monochrome is cyan, the thickness of the printing ink film (1.20-1.40g / m2) at a speed of 100 meters / minute, two 120W / cm medium pressure mercury bulbs should be used. If the darker colors with high color density are printed on one or two overlapping colors, it will increase the difficulty of overall drying. This is caused by the rapid absorption of UV light by dark ink. Generally, the difficulty of drying four-color UV inks is magenta, yellow, cyan, and black. Therefore, the order of UV color printing should be black, cyan, yellow, magenta. The opaque color is also very difficult, it reflects all UV light back. Metallic, gold, and silver have the same problem.
Lamps that are too old cannot dry UV ink or varnish and cause printing difficulties. The UV lamp must be replaced after 1,000 hours of use. If you feel that the printed matter cannot be dried at normal printing speed, you must consider replacing the UV bulb to avoid affecting the printing operation.
Without the reflector installed, about 80% of the UV light will not affect the printed matter due to diffusion, so the UV lamp must be installed to reflect the lamp cover to focus on the printed matter.
The reflector must be clean and maintained in time to maintain its best function. Some paper dust or powder spray dust attached to the reflector will affect the reflection effect of the UV lamp. When the UV lamp is not used, the UV lamp cover should be closed.
Kitchen Cutting Tools
Nowadays, Kitchen Tools expand world-wided quickly and plays an significant role in the modern kitchen life. Though knives can handle most of the kitchen situations, kitchen cutting tools, as a kitchen fresher, develops to a vital implement without which no kitchen can work. Compared with large and heavry traditional knives, these widgets are small and easy-to use. They can be the first choice when you need to cut things into thin slices. Tiny size, safe griping design and convenient handling characters, make these cutting tools totally welcomed by the modern kitcheners.
Fruit/Vegetable cutters and corers
For any families who love fruit and vegetable, these cutting tools are optimum selections. You can make fruits and vegetables into small pieces that is suitable for both adults and children, as well as for going in salads.
Slicer and grater
Slicers and graters can turn the cheese, fruits and vegetables into slices without any damages or bruise. Thesse tiny tools mostly look like a metal piece with a sharp slit on it, which is used to cut food thin and into peices.
Do you have any tear experience when you are chopping lemen, onions or garlic? These vegetable presses can help you in any tearing chopping situations!
Kitchen Cutting Tools
Kitchen Cutting Tools,Fruit Cutter Tools,Food Cutting Tools,Kitchen Shears
V-Boom's Industrial Co.Ltd , https://www.v-booms.com