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Information @ a Glance

  • Dyeing is the process of imparting colors to a textile material through a dye (colour).

  • Colour is applied to fabric by different methods of dyeing for different types of fiber and at different stages of the textile production process.

  • Finishing fabric—improving shrinkage control, softness, stain resistance, and so on—requires immersion in chemical solutions followed by moisture removal and drying on a tenter fram.

  • The four basic steps in the dyeing process are: dissolving or dispersing dye; diffusing dye onto the fiber surface; absorbing dye onto the fiber surface; and diffusing dye into the fiber.

  • Finishing refers to any operation that improves the appearance and/or usefulness of fabric after it has been woven or knitted.

  • Finishing encompasses any of several mechanical (e.g., texturing, napping) and chemical processes (e.g., optical finishes, softeners, urea-formaldehyde resins for crease resistance) performed on fiber, yarn, or fabric to improve its appearance, texture, or performance.

  • The most popularly used colours for cotton dyeing are Aurammic G. victoria blue, brilliant green crystals, rhodamine yellow G, rhodamine dye blue, melachite green etc .

  • The demand for processed fabric is rising in accordance with the increase in production and export of value added products i.e. apparels and made-ups.

  • At present, cotton constitutes 78 percent of the total fibre consumed by the textile industries. There is demand for cotton dyeing units as the consumption of cotton textiles has increased .

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