What is "Natural Dyes" - Definition & Explanation

Natural dyes are dyes that are created from bark, bugs, flowers, minerals, rust and other natural materials. Dyes produced in nature that can be animal, plant or mineral based. On the face of it 'better' than synthetic dyes but they require huge amounts of land for cultivation, they are weak compared to synthetic dyes, require metal based mordants and many have very poor technical performance. However still worthy of further study. Natural dyes allow small producers to retain their traditional dyeing methods and promote biodiversity.
Dyes that are made from mineral, vegetable (plant) or animal; otherwise obtained from natural sources. The most common types include Indigo, Cochineal, Lac, Logwood, Madder, Munjeet, Catechu, Brazilwood, Osage Orange, Fustic, Weld, Tannin, and Quercitron.

Some other terms

Some more terms:

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Fabric that has been processed by dyeing, printing, applying of special resins and finishes, and is ready for market. Finishing: The process of dyeing, printing, etc.. of greige goods....
A finishing process that brings the fabric in contact with sandpaper or another abrasive material. This may be done to raise surface fiber, impart a peached or sueded hand or to create a surface...
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The process of removing large amounts of water from fabrics after dyeing using either industrial spin dryers or vacuum extractors. They reduce the amount of energy required in stentering or other...

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