natural dyes

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nat·u·ral dyes

dyes obtained from animals or plants; examples include carmine obtained from cochineal in the dried female insect Dactylopius coccus of Central America, and hematoxylin extracted from the bark of the logwood tree Haematoxylon campechianum in the Caribbean area.
References in periodicals archive ?
Most of the designs highlighted on the concept of clothing using natural products like organic cotton, vegetable dyes, natural fibres etc.
Unlike chemical dyes, natural colourants do not erode the structure of wool fibres, but lend them sheen and succulence.