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ink stringing, string break-off length

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ink stringing, string break-off length (In French détermination du tirant) non-standardized rocedure for empirically testing the viscosity of a pasty printing ink on the basis of thread formation or break-off length, which allows conclusions concerning the viscosity and tackiness, that is, the “shorter”, the tackier and the more viscous. Methods: 1. A spatula is inserted at an angle into the printing ink (in the ink container) and then lifted out; 2. thread formation between two fingers. Uncontrolled thread formation in the roller nip leads to mist formation and splashing.