Properties Of Sulphur Dyes
Properties Of Sulphur Dyes. 2.good overall colorfastness properties such as wash. + they contain sulphur linkages within their molecules.
Properties of emperor sulphur dyes: However, the directness of leuco body to fiber after reduction is lower than that of vat dyes, and the tendency of dyes to aggregate is greater. Properties of sulphur dyes properties of sulphur dyes:
10% (On The Weight Of The Fabric) Na2S (Reducing Agent) :
Properties of basic dyes they are cationic dyes. It is made water soluble by the help of a reudcing agent and after that it is exhausted on the textile. Copper turnings are taken in a round bottom flask fitted with thistle.
Sulphur Dyes Is Water Insoluble Ii.
Both dyes and pigments are coloured as they absorb only some wavelength of visible light. Then we pointed out some chemical properties of these dyes such as. Main properties of the sulfur dyes are as follows:
1.Economical Dyeing With Excellent Tinctorial Value And Good Build Up Properties.
Soluble in alcohol and methylated spirit but not readily soluble in water. Oxidation is needed for final color development. Heat reduction and oxidation of the development in the fibre.
Their Washing Fastness Is Also Quite Good, Which May Be Attributed To Hydrophobic Nature Of The Acrylic Fiber And Good Substantivity Of The Dye For The Fiber.
Their structures have aryl rings that have delocalized electron systems. Sulphur dyes don’t have any afinity for textile cellulose fibres. Oxidation is needed for final colour.
8 Gm/Litre (Nacl) Soda Ash (Naco3) :
Sulphur dioxide gas is prepared in laboratory by heating copper turnings with conc. Best suitable for producing black and. Triangulenium dyes functionalized with one, two or three ethylthiol functionalities were synthesized and their optical properties were studied.
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