FIELD: chemistry.
SUBSTANCE: invention relates to polyamide-based printed films which are used as casings for food products, particularly artificial sausage casing. Disclosed is a printing ink system for printing on (co)polyamide-based films. Said system contains a radically curable primer ink and UV radiation radically curable printing ink which forms an almost colourless layer of primer ink. The primer ink contains a reactive compound which, in one molecule, contains a group capable of bonding with a (co)polyamide surface and an ethylenically unsaturated group which can undergo radical-initiated polyaddition. The invention also discloses a (co)polyamide-based single- or multilayer film which is printed with said printing ink system and a method for production thereof.
EFFECT: printing ink system enables to print on (co)polyamide-based food films with high adhesion to the film, resistance to friction, scratching even without an additional lacquer coat, mechanical and thermal processing, resistance to migration of ink components, which prevents foreign odours from food products.
27 cl, 1 ex
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|---|---|---|---|
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