Publikace detail

Improved mechanical properties of new hybrid UV curable varnish for inkjet printing

Autoři: Jašúrek Bohumil | Vališ Jan | Syrový Tomáš

Rok: 2019

Druh publikace: ostatní - článek ve sborníku

Název zdroje: RadTech Europe 19 : proceedings

Název nakladatele: RadTech Europe

Místo vydání: Hague

Strana od-do: 1-4

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
eng	Improved mechanical properties of new hybrid UV curable varnish for inkjet printing	The aim of this work was to develop UV curable varnish for inkjet printing that can be partially cured by UV LEDs operating at 395 nm (for creating of 3D effects). Final curing of prepared UV curable varnish is achieved using medium pressure mercury lamp. The prepared UV varnish polymerized by hybrid mechanism (simultaneously free radical and cationic polymerization). The formulated varnish was printed on commercially available DOD inkjet machine (with dry layer thickness of 20 and 40 μm). Mechanical properties of the prepared UV curable varnish samples and the commercially available ones were compared. Namely, the study included evaluation of adhesion by the Tape test, quality of the varnish layer with respect to cutting and grooving, and elasticity/adhesion of grooved varnish layer after folding (180°). Results showed that developed UV curable varnish has better adhesion and elasticity than the commercially available ones.	UV curing; free radical polymerization; cationic polymerization; adhesion; mechanical properties

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