FIELD: printing.
SUBSTANCE: group of inventions relates to printing ink, in particular, to flexographic ink, or to overprint varnish, production method thereof and the use of nitrated lignin as a binding component. Ink or varnish contain nitrated lignin as at least one binding component. Method of producing ink or varnish includes production of nitrated lignin in the form of a solution and mixing the solution of nitrated lignin with other components. Use of nitrated lignin as a binding component in printing ink, in particular, in flexographic printing ink, or in overprint varnish using the disclosed method.
EFFECT: technical result achieved when using the method or the ink or the varnish according to the inventions is to provide sufficient heat resistance using the binding agent at least partially consisting of renewable raw material.
26 cl, 4 ex
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