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The colorant at this stage has the consistency of fine, red mud. Color used as a dye can be diluted. [34] 1.5 kilograms (3.3 lb) of dried florets produces enough dye pigment to dye a small piece of fabric. The dye color is fixed in the fabric with a mordant. Darker shades are achieved by repeating the dyeing process several times, having the ...
Sulfur dyes are inexpensive dyes used to dye cotton with dark colors. Dyeing is effected by heating the fabric in a solution of an organic compound, typically a nitrophenol derivative, and sulfide or polysulfide. The organic compound reacts with the sulfide source to form dark colors that adhere to the fabric.
The primary objective of the dyeing process is to achieve uniform color application in accordance with a predetermined color matching standard or reference on the substrate, [17] which may be a fiber, yarn, or fabric, while meeting specified colour fastness requirements. Tie-dye and printing are the methods where the color is applied in a ...
The dye is an organic compound of bromine (i.e., an organobromine compound), a class of compounds often found in algae and in some other sea life, but much more rarely found in the biology of land animals. This dye is in contrast to the imitation purple that was commonly produced using cheaper materials than the dyes from the sea snail. [2]
Basic dye 51010 oxazin 81029-05-2: Brilliant green: Malachite green G Zeylonka Basic green 1 42040 triarylmethane 633-03-4: Bromsulfthalein: BSP triarylmethane 71-67-0: Bromocresol green: BCG triarylmethane 76-60-8: Bromocresol purple: BCP triarylmethane 115-40-2: Bromodeoxyuridine: BDU 59-14-3: Bromophenol blue: BPB Albutest triarylmethane 115 ...
A fabric or garment which is prepared for dyeing, abbreviated PFD, is specially made to be dyed. PFD fabrics have been desized , scoured, and fully bleached , but have been processed without optical brighteners or softeners which can interfere with dye uptake.