natural dye

nat·u·ral dye

(na'chŭr-ăl dī)
Dye obtained from animals or plants.
References in periodicals archive ?
1/2 cup natural dye (can be created from blueberry, onion skins, red cabbage, spinach leaves, etc.
RESTORED: Sophie Foster''s hair back to its natural dark brown using a natural dye
There are some researches where fastness properties and colour values [6] of the plant dyes, effects of the anionic agents on dyeing [7], effects of the process parameters on dyeing, mordant enzyme complex applications [8] reducing the usage amounts of the mordants that may have a environmental burden, UV protection and antimicrobial properties of the natural dye are examined [9].
The composition comprises at least one natural dye chosen from orceins, alizarin, purpurin, carminic acid, kermesic acid, purpuroqallin, protocatechaldehyde, indigo, curcumin, spinulosin, apiqenidin, chlorophyllin, sorghum, and cochineal carmine and at least one organic solvent.
To prove the point, the department is using the natural dye of crushed raspberries to demonstrate the solar cells at work and is copying the natural process of photosynthesis in plants.
He said the most common natural dye used for dying eggs in Cyprus is the 'rizari', otherwise known as 'madder root', or more officially 'Rubia tinctorum' which gives different shades of the colour red.
Among the individual projects is a device that reduces environmental pollution resulting from vehicles, and a natural dye that detects live sperms.
The sweets giant has discovered a natural dye in spirulina, a sea-weedy lake algae that recreates the old E133 brilliant blue hue.
Hematoxylin is a natural dye derived from the Haematoxylum campechianum tree, (2) a medium-sized, evergreen, thorny tree with small, five-petal, yellow malodorous flowers.
To make a natural dye, add 4 cups chopped fruits or vegetables (or 1 tablespoon spice) to 4 cups water.
There's been a huge rise in interest over the last two or three years,'' said Sasha Duerr, author of ''The Handbook of Natural Plant Dyes'' (Timber Press, 2011), who teaches natural dye techniques and has founded the Permacouture Institute, which promotes sustainable textiles.
However, the planning of this event was hijacked when news reached Mukerji early in 2009 that Dr Himadri Debnath, joint director of the Botanical Survey of India (BSI) in Kolkata, had found in a forgotten corner of the building some unique long-lost 19th-century volumes of natural dye samples, along with a rare set of textile samples compiled by John Forbes Watson.

Full browser ?