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indigo blue 1.=indigotin.2.靛藍〔光譜七色之一〕。

indigo snake

The blue and white pure cotton print is made by using soybeans and lime powder and taking plant indigo blue as dye through complete unique bandwork 中國藍印花布是以植物靛藍作染料,利用黃豆和石灰粉拷藍,由獨特手工藝制作的藍白兩色的純棉織品。