Common offset ink failure analysis

Seven, ink does not drop groove phenomenon

The ink lacks fluidity during printing and cannot be transferred from the ink fountain to the ink roller.

Reasons: (1) The yield value of the ink is too large, and the ink ink has a short flowability. (2) Large thixotropy of ink.

Treatment methods: (1) Add a PM-1 varnish that can make the ink filament longer, or a high-viscosity resin oil that improves the ink flowability. (2) Stir the ink often or install a stirrer in the ink fountain. (3) Change the ink with good fluidity.

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Common offset ink failure analysis - ink does not drop