cotton dyeing

Dye the cotton yarn Submitted to- Submitted by- Mr. VasantkothariHarmendarkothari Sujithpraveen M.f.tech-2

Introduction- ,[object Object]

Dyes are molecules which absorb and reflect light at specific wavelengths to give human eyes the sense of color.

Dyeing is a method which imparts beauty to the textile by applying various colors and their shades on to a fabric.,[object Object]

Known as “king of fibers”,[object Object]

Reactive dye on cotton-Mechanism

Reactive dye on cotton-process flow

A) Batch yarn Dyeing 1.Package dyeing method- ,[object Object]

packages of yarn are stacked on perforated rods in a rack and then immersed in a tank

dye is forced outward from the rods under pressure through the spools and then back to the packages,[object Object]

Remedies for problems in yarn package dyeing: ,[object Object]

pH, Temp. & Time,[object Object]

These are then hung over a rung and immersed in a dyebath in a large container.

The colour penetration is the best and the yarns retain a softer, loftier feel. ,[object Object]

3.Beam yarn Dyeing- ,[object Object]

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