What is Flash Cure?
Technical definition, shop floor implications, and pricing strategies for commercial apparel decorators.
An intermediate radiant or quartz heating unit mounted on a screen printing press that quickly heats wet ink to 220°F–250°F to semi-gel the surface without curing it completely, allowing subsequent colors to overprint cleanly.
Deep Dive & Practical Application
On multi-color screen printing jobs on dark garments, printing wet ink directly on top of wet ink causes colors to smear, stick to the bottom of downstream screens, and blur artwork details (known as wet-on-wet pickup).
A flash cure unit sits over a single platen station. When activated, quartz infrared elements blast high heat for 2 to 5 seconds. This skin-cures (gels) the surface of the white underbase so it feels dry to the touch, enabling the press operator or automatic indexer to immediately print top colors over it without ink pickup.
The shirt must subsequently pass through a full tunnel conveyor dryer at 320°F to achieve total chemical cure.
Shop Floor & Profitability Impact
Flashing adds 3 to 6 seconds per rotation cycle on an automatic or manual press. It also heats the aluminum pallets, which can cause downstream screens to build heat and dry out water-based inks.
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