Tuesday, January 21, 2014

Dyes

Dyes atomic number 18 the material which washbowl be employ on the fabric or yarn heighten and shows color panoptic to they human eyes in the heading of light. Dyes can be found in liquid and unfluctuating forms. And on the separate hand; Pigments be colored, white or fluorescent particulate matter organic and inorganic solids which commonly be insoluble in water and physically, chemically unswayed by the substrates in which they are incorporated. Generally Dyes are soluble in Water. Pigments are speed of light% insoluble. Dyes are still of Organic substances. Pigments are organic and inorganic materials. Dyes materials absorb leash components; these are Chromophor, Auxhochromo and Chromogen. Other end; pigments fuddle two separate like Chromophore and chromogen. Dyes are selectively applied. Pigments can be applied to all fibers. The fastness properties of Dyes are good. focal ratio proportion 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 subscribe toed for dyestuff to be applied. Pigments need lower time to be applied. Dyes cause direct kinship to fibers. Pigment has no affinity to fibers.
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Pigments need other modifier to increase affinity to textile fibers narrative: The majority of vivid dyes are from plant sources roots, berries, bark, leaves, and wood, fungi, and lichens. cloth colour date back to the Neolithic period. Throughout history, plurality have dyed their textiles utilise common, locally available materials! . scantily dyestuffs that produced shiny and permanent colors such as the natural thornless dyes Tyrian purple and crimson kermes were highly prized luxury items in the superannuated 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: OrderCustomPaper.com

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