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A laundry sour is a chemical added to clothing during the final rinse cycle of a washing machine to lower the pH of the water and to assist with the removal of detergent rust and or mineral residues that clinged on the fabrics.
Dylon's machine fabric dye and hand dye both contain reactive azo dyes, triphenylmethane dyes, sodium carbonate and sodium chloride. The reactive groups are either pyrimidine or vinylsulphone . Machine Fabric Dye comes in 32 colours, Hand Dye in 21 colours.
In textile processing, stripping is a color removal technique employed to partially or eliminate color from dyed textile materials. Textile dyeing industries often face challenges like uneven or flawed dyeing and the appearance of color patches on the fabric's surface during the dyeing process and subsequent textile material processing stages.
Mercerization is a treatment for cotton fabric and thread that gives fabric or yarns a lustrous appearance and strengthens them. The process is applied to cellulosic materials like cotton or hemp. A further possibility is mercerizing during which the fabric is treated with a sodium hydroxide solution to cause swelling of the fibers.
The formulation of fabric treatment composition is that in a 1.5 litre beaker, 219.8 g in distilled water, 287.9 ml is polyethylene glycol, 100 ml is 2-ethanol and the mixture is heated to 85 degrees Celsius. 120 ml of sodium stearate is added during the heating process.
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The fabric was boiled in an alkali, which forms a soap with free fatty acids (saponification). A kier is usually enclosed, so the solution of sodium hydroxide can be boiled under pressure, excluding oxygen which would degrade the cellulose in the fibre.
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