Conventional Offset
TriWill Group supplies a complete range of conventional offset ink for US commercial printers running sheetfed and heatset web offset presses. Unlike UV or LED-curable inks, conventional offset ink dries through oxidative polymerisation and absorption — the traditional, proven ink chemistry used across the majority of commercial print production in the United States.
Our conventional offset ink range spans standard commercial formulations, high-density inks for premium color strength, platinum-grade inks for luxury print, and low migration formulations for food and pharmaceutical packaging — giving US printers a complete oxidative ink solution from a single, technically supported supplier.
TriWill conventional offset ink products include the TWG-OF-Premium standard sheetfed ink, TWG-OF-INTENSE high density ink, TWG-OF-Platinum premium formulation, and TWG-OF-LMI low migration ink, alongside matt and gloss offset varnishes for inline print finishing. Every product is formulated for consistent color strength, reliable ink-water balance, and excellent printability on Heidelberg, Komori, Manroland, RMGT, and equivalent commercial sheetfed and heatset web presses.
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Frequently Asked Questions
What is conventional offset ink?
Conventional offset ink is a paste-based printing ink that dries through oxidative polymerisation and absorption into the substrate, rather than instant curing under UV or LED light. It is the traditional ink chemistry used in commercial sheetfed and heatset web offset printing and remains the standard choice for the majority of commercial print production.
What is the difference between conventional and UV offset ink?
Conventional offset ink dries through oxidation and absorption, typically taking longer to fully cure than UV ink. UV offset ink contains photoinitiators and cures instantly under UV light, producing a harder, more scratch-resistant surface and enabling printing on non-absorbent substrates such as films and foils. Conventional ink remains more cost-effective for standard paper and board printing.
Which conventional offset ink should I use for premium print?
For premium commercial and luxury print applications, TriWill Group recommends TWG-OF-Platinum, our top-tier premium offset ink formulated with premium pigments for maximum color brilliance. For maximum color density and saturation, TWG-OF-INTENSE high density offset ink is the recommended choice.
Does TriWill supply low migration conventional offset ink?
Yes. TriWill Group offers TWG-OF-LMI, a low migration conventional offset ink formulated to minimise ink component migration through packaging materials for food and pharmaceutical packaging applications.
Is conventional offset ink compatible with inline varnishing?
Yes. TriWill conventional offset inks are compatible with inline gloss and matt offset varnishing for print finishing directly on the press, without requiring additional coating equipment.