Dyes

Dyes atomic number 18 the material which washbowl be applied on the fabric or yarn surface and shows color panoptic to they human eyes in the presence of light. Dyes can be found in liquid and solid forms. And on the separate hand; Pigments are colored, white or fluorescent particulate matter organic and inorganic solids which usually are insoluble in water and physically, chemically unaffected by the substrates in which they are incorporated.
Generally Dyes are soluble in Water. Pigments are speed of light% insoluble.
Dyes are composed of Organic substances. Pigments are organic and inorganic materials.
Dyes materials absorb three components; these are Chromophor, Auxhochromo and Chromogen. Other end; pigments have two parts like Chromophore and chromogen.
Dyes are selectively applied. Pigments can be applied to all fibers.
The fastness properties of Dyes are good. focal ratio property of Pigment is average.
Dyes are widely used in Dyeing. Pigments are widely used in Printing.
Dyes are comparatively expensive. Pigments are comparatively cheap.
A long period is needed for dyestuff to be applied. Pigments need lower time to be applied.
Dyes have direct kinship to fibers. Pigment has no affinity to fibers.



Pigments need other modifier to increase affinity to textile fibers

History:
The majority of vivid dyes are from plant sources roots, berries, bark, leaves, and wood, fungi, and lichens. cloth dyeing date back to the Neolithic period. Throughout history, plurality have dyed their textiles using common, locally available materials. scantily dyestuffs that produced brilliant and permanent colors such as the natural invertebrate dyes Tyrian purple and crimson kermes were highly prized luxury items in the ancient and medieval world. Plant-based dyes such as woad, indigo, saffron, and madder were brocaded commercially and were important trade goods in the economies of Asia and Europe. Across Asia and Africa, copy fabrics were produced using resist...If you want to get a full essay, effect it on our website: Orderessay



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