Good helper for white ink printing | LED UV white ink lamp

The basic principle of LED UV offset printing curing is that the photoinitiator in the ink absorbs ultraviolet radiation energy and is activated. The outer electrons of its molecules jump, generating active centers in a very short time. Then, the active centers react with unsaturated groups in the resin, causing the double bonds in the cured resin and active diluent molecules to break, resulting in continuous polymerization reaction and cross-linking to form a film. It belongs to a type of radiation curing method

LED UV printing does not emit solvents into the environment

Can meet the strictest VOC emission regulations

During the printing process using UV ink, due toTransparency of ink of different colorsThere are significant differencesSo their absorption of ultraviolet rays varies, which will affect the overall drying speed.     

So, usually we followWhite, black, green, yellow, and magenta inkArrange the color sequence to allow ink with poor transparency to absorb as much UV light as possible, thereby achieving optimal printing speed and color

(There is severe ink pulling in the white ink after being irradiated with a regular LED UV light source)

White ink belongs to the total reflection spectrum, and due to the difficulty of UV light transmission, it is sometimes harder to cure than black ink

(Obvious graininess)

Many printing factories, especially those engaged inPackaging printingWhen it comes to white ink, it is difficult to cure well. In the application of LED UV, this is also a major challenge in the industry

But the printing speed determines the production efficiency of the printing factory. How toQuickly complete white ink curing, ensuring print quality while improving production efficiencyWhat about it

In response to the characteristics of white ink and the actual production scenarios of printing, Youweixing has specially developedThe white ink curing lamp has shown excellent performance in on-site experiments and subsequent use at the cooperative printing factory

Printed matterThere is no such thing as ink pullingThe phenomenonsurface dryingRubber without pile of white ink

When the test printing speed reaches 12000 prints per hourUnder the illumination of ordinary LED lightsPrinting materials such as silver polyester, gold matte, and silver laser paper will be determined based on the quality of the paperThere may be slight or severe ink pullingPhenomenon

ButYouwei StarWhite Ink LampThe quality of the printed material under illuminationVery stablecalmRegardless of the quality of the paperNo ink pulling or ink stacking occurredThe phenomenon

Jin Su MianMaterial, no ink, good effect

rubberNo ink buildup, clean surface