indigo vat

基本解释

Indigo: Blue VAT dye, obtained until about 1900 entirely from some species of the indigo plant.
靛蓝蓝色还原染料，约在1900年以前，一直是从木蓝植物获得。
That the fixing agent will be on direction of water-based polyurethane, and should study some fixing agent that effective on the indigo vat dyes.
根据固色剂发展现状及政策要求认为，固色剂将以水性聚氨酯型为发展方向，同时应当加强研究针对靛蓝类还原染料的新型固色剂。
Production, it will be painted a good wax printed cloth put in the dye vat of indigo straight after numerous disseminated, the out-dry boiling wax, rinse clean, and any need to sew.
制作时，将绘好的蜡花布投放直蓝靛的染缸中，经多次浸染后，取出凉干，煮沸脱蜡，漂洗干净，任需缝制。

But on a recent winter afternoon Yasin's younger sibling was himself toiling over a vat of indigo dye in which the water hasn't been changed in a generation.
FORBES: Magazine Article