Green Global
Foundation   Journal
...an emerging window for scientific research and publication across the globe

ESTIMATION OF SCOURING EFFECT ON COTTON BY VARYING CONCENTRATION OF CAUSTIC SODA (Pages : 77 - 81)

Apparel knit fabrics are normally prepared and dyed in exhaust equipment such as winch dyeing machine and jets. Scouring, prior to bleaching and dyeing is usually done in an alkaline process by boiling cotton in sodium hydroxide. Alkaline scouring at high temperatures for a long period of time followed by bleaching can abrade the fabrics and create an undesirable damage and change on the fabric surface. Scouring is practiced in the textile industry to remove the non-cellulosic hydrophobic cuticle constituents. This improves wet ability of the fibers, which facilitates uniform dyeing and finishing. Conventionally, scouring is performed by hot hydrolysis with NaOH, which involves large quantities of water and energy and requires special handling of the strong alkaline effluents. This project & thesis work has been devoted to study the scouring effect specially the minimum weight loss percentage (%) and obtaining maximum absorbency (Drop test, Immersion test) of textile material using minimum caustic soda.Download