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Waste in Textile Value Chain




              An overview of the type of waste and emission generated within textile value chain is highlighted in the table
                                                                                                                                                              The volatilization of spin
              below:
                                                                                                                                       Heat-setting           finish agents in synthetic   Low                   Low
                                                                                                                                                              fibre manufacture
              Table 3: Overview of Waste and emission generated across value chain
                                                                                                                                                                                        Metals, salt, surfactants,
                                                                                                                                                                                        organic processing
                                                                                                                                                                                        assistants, cationic
                                                                                                                                       Dyeing                 Low                                                Low
                      Process               Air Emission             Waste water                Solid wastes                                                                            materials, colour,
                                                                                                                                                                                        sulfide, acidity /
                                                                                          Fibre waste and                                                                               alkalinity, spent solvents
                Fibre preparation      Low                       Low
                                                                                          packaging waste
                                                                                                                                                                                        Suspended solids, urea,
                                                                                                                                                              Solvents, curing oven
                                                     Yarn and Fabric Production                                                        Printing                                         solvents, colour, metals,   Low
                                                                                                                                                              emissions, gases
                                                                                                                                                                                        foam
                                                                                          Sized yarn, fibre waste,
                Yarn spinning          Low                       Low                      cleaning and processing                                             VOCs, formaldehyde        Suspended solids, toxic   Fabric scraps and
                                                                                          waste                                        Finishing                                        materials, spot
                                                                                                                                                              vapors                                             trimmings
                                                                                                                                                                                        solvents
                                                                                          Fibre lint, yarn waste,
                                                                 BOD & COD from size      cleaning waste, size
                Slashing/sizing        VOCs                                                                                                                                  Garment manufacturing
                                                                 washing residues         unused starch-based
                                                                                          sized
                                                                                                                                                                                                                 Fabric, lining and
                                                                                          Yarn and fabric scraps,                      Fabric laying & cutting  -                       -                        interlining scrap,
                Weaving                Low                       Low
                                                                                          off-spec fabric, used oil.                                                                                             packaging waste
                                                                                          Yarn and fabric scraps,                                                                                                Yarn scrap, metal scrap,
                Knitting               Low                       Low                                                                   Sewing                 -                         -                        oil-soaked cloths
                                                                                          off-spec fabric
                                                                                          Yarn, fabric scraps,                                                                          Detergent in waste
                Tufting                Low                       Low                                                                   Garment Washing        -                                                  Micro fibres
                                                                                          off-spec fabric                                                                               water, chemicals, dyes

                                                          Wet Processing                                                               Ironing & Packaging    -                         -                        Carton scrap, plastic bags


                                                                 BOD from sizes           Fibre lint, yarn waste,                                                                 Consumption
                Desizing               VOCs from glycol ethers   lubricants, biocides,    cleaning and maintenance
                                                                 anti-static compounds    materials
                                                                                                                                       Distribution and Retail  Vehicular emission      -                        Packaging waste
                                                                 Disinfectants,
                                                                                                                                                                                        Detergent in waste       Used garments, Micro
                                                                 insecticide residues,                                                 Consumer use           -
                                       VOCs from glycol ethers   caustic soda,                                                                                                          water                    fibres
                Scouring                                                                  Low
                                       and scouring solvents     detergents, oils, knitting
                                                                 lubricants, spin finishes,                                                                                        End of Life
                                                                 spent solvents
                                                                                                                                                                                                                 Soiled clothes, small cut
                                                                                                                                       Collection & Sorting   -                         -
                                                                 Hydrogen Peroxide,       Low; even if little,                                                                                                   pieces, plastics, metals
                Bleaching              VOCs                      stabilizers, hypo        the impact could be
                                                                 chloride                 considerable                                 Landfilling/ waste to   Carbon emission          -                        Co-processing of textile
                                                                                                                                       energy                                                                    waste
                                       Small amounts of
                Singeing               exhaust gases from the    Low                      Low
                                       burners

                Mercerizing            Low                       Caustic soda             Low





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