Special ink printing techniques (4)

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Waterless ink

Recent developments in waterless printing inks have made it more characteristic of traditional offset inks. However, most water-free inks have high viscosity and thick texture. They do not spread smoothly when they are transferred in the ink roller, and they harden or dry on the surface of the ink roller. The best water-free inks are those with a wide temperature range. The ink - between 72 and 92 ° F - and has the ability to dry out 6-8 hours.

Tip: If a certain kind of waterless ink loses its viscosity due to the long running time, lowering the temperature will increase the viscosity of the ink itself; if the ink stays on the ink roller for some time, it will harden, and raising the temperature will improve its fluidity. .



Source: HC Network Printing Industry Channel

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