Dyeing is an integral part of the textile products manufacturing process. Dyes are substances classified according to their application and chemical structure and composed of a group of atoms known as chromophore. A substantial amount of water has consumed in the dyeing and finishing operations of the textile plants.
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Business
How does Dyeing Textiles Affect the Environment?
How does
Dyeing Textiles
Affect the
Environment?
Dyes are substances classified according to
their application and chemical structure and
composed of a group of atoms known as
chromophore, which is applied to a substrate
provide color by a procedure that changes, in
any event temporarily, any precious crystal
structure of the shaded substances. Dyeing is
an integral part of the
textile products manufacturing process.
A substantial amount of water has consumed
in the dyeing and finishing operations of the
textile plants. The wastewater from the textile
plants is the most contaminated of all the
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created just as the pro-fluent organization.
Above 200,000 tons of dyes, few with highly
toxic properties used in the textile industry are
lost to effluents every year during the dyeing
and finishing operations, due to the inefficiency
of the dyeing process causing an impact on the
aesthetic quality and transparency of water
bodies.
Dyeing process in the
made-ups textile
manufacturing industry:
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Traditional/ Piece dyeing:
Traditional or piece dyeing is the dyeing of fabric/
product after it has been constructed by involving
three steps: Preparation, Dyeing, and Finishing. It is
the most common method of dyeing used with the
aqueous application.
Positives:
•Conventional and widely used process
•Economical
•Suitable for quick response orders as the color
design made once the fabric gets manufactured.
Negatives:
•Longer lead time
•Wet processing generating a substantial amount of
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bodies seriously affecting their aesthetic quality and
transparency.
•Not environment friendly, with high water, CO2,
chemical and power consumption.
Dope/Spun dyeing:
Dope dyeing involves the intermixing of master batch
colorant with the polymer before fiber extrusion, and
later it is used to create the desired fabric. It is the
process of adding pigments or insoluble dyes to the
spinning solution before the solution extruded through
the spinneret.
Positives:
•Reduced greenhouse gas emissions significantly.
•Increase in water conservation as there is no water
used in the dope-dyed process.
•Wet processing leading to water usage and generation
of effluents with a complex chemical composition is
eliminated.
•Saves use of chemicals as the process is shorter
compared to conventional dyeing.
•[email protected] r e d u c t i o n i n h e a v y m e t a l c o n t a m i wnwwa.fatzeitohrene.c oimn
wastewater.
•Reduction in process lags and production time as the
fiber is already dyed.
Negatives:
•More expensive and higher inventory costs.
•Limited variety of color and shades.
•Decisions regarding colors have made at a very early
stage.
Conventional dyeing on products with recycled yarn:
It can be noted that the conventional dyeing
process itself is not environment friendly. However,
it is suitable for fabrics/ products made by using
recycled yarn or fiber as the raw recycled fiber/
yarn is available as compared to dope dyed
recycled fiber/ yarn leading to sustainability as it
reduces CO2 emissions by using recycled yarn.
Positives:
•Use of recycled fiber/ yarn reduces CO2 emissions
•Raw recycled yarn/ fabric available easily
Negatives:
•Environmental impact due to conventional dyeing
•The [email protected] omp r e m i u m i s c h a r g e d b y t h e s u p p l i e r s
•Dyeing is done in bawtwcw.fhazeethrsee .colmeading to high use of
natural resources and more lead time.
Now let us understand why it is not
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machinery
•High conversion cost
•Very few manufacturers due to high investment
and high fixed costs
•Monopoly, leading to price rigging
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AT FAZE THREE LIMITED, dope dyed yarn is
less economical, looking at the sustainable
impact. At present, the Company has
maximized its use and discourages the use
of conventional/ piece dyeing. This is
resulting in a tremendous reduction of toxic
wastewater getting discharged in water
bodies. Simultaneously, the Company is
exploring sourcing of dope dyed recycled
yarn as a raw material. At present, there are
only two suppliers in India manufacturing
dinfoo@fpazeethre e.comd y e d r e c y c l e d y a r n d u e t oww w.fazehthrieeg.cohm
investment and conversion cost, the price of
the yarn is about 30% higher compared to
virgin dope dyed.
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