Technical Articles
Flexo Ink Selection Guide for Corrugated Printing
Technical buyer guide to flexo inks for corrugated: water-based systems, anilox interaction, board absorbency, drying, rub, and RFQ specs when sourcing from China.
Quick answer
Select corrugated flexo ink for board absorbency, anilox volume, dryer capacity, and required rub/water resistance. High-graphics brown kraft behaves differently from coated white-top—approve on your board, not only on show stock.
Why corrugated flexo is different
Flute washboarding, dusty recycled liners, and high line speeds punish weak drying and poor holdout. Water-based systems dominate many plants; solvent/UV appear in specialty cases—match to your press and EHS rules.
Anilox and plate interaction
Ink transfer depends on anilox BCM and plate compound. Changing ink series without revisiting anilox inventory creates mottling. Share typical anilox specs with ink suppliers during trials.
Quality gates
Density, trapping, rub, smear after stacking, and barcode grades on shippers. Condensation in cold warehouses can revive ink—test if relevant.
RFQ / trial plan
Press type; dryer; board grades
Color set; varnish needs; monthly kg
Trial protocol on your liners
TDS/SDS; packaging of ink; Incoterms
Related PackTrades Knowledge
Packaging Inks Buying Guide for Carton and Flexible Plants, Flexo Printer Buying Guide for Carton Plants, Corrugated Flute Types Explained for Buyers, Hot Foil and Packaging Coatings Buyer Guide.
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