Vegetable Matter VM Discounts MediumFine Wool Wool
The object of the carbonization process is the removal of vegetable matter from wool. Processing StagesScouring of the raw wool with non-ionic detergent.Rinsing.Immersion in a long bowl containing 5-7% (w/v) sulphuric acid, 1-2 g/L detergent at 20- 30C.
Double squeezing and/or continuous centrifuging prior todrying. Drying at 60-80C to a low regain. Baking at 95-120C to carbonize the VM Pass through heavy fluted rollers to crush the embrittledVM Convey to a rotating shaker/de-duster to remove thecharred VM dust Pass through a neutralizing bowl usually containingsodium carbonate
Rinsing with a small addition of detergent. Bleaching with hydrogen peroxide at approximately pH5 with formic acid. Final drying
The traditional system Fabriccarbonizing Carbosol system
Control the carbonization process Veryimportant why ?
Acidising.Moisture removal. Drying/Baking .Burr crushing and dedusting. Neutralization
Ensures full cleaning of fibers from impurities The fiber length isn’t changed The wool production as compared with the mechanical method is increased by 1- 1.3%. The quality of yarn and fabric improved. wool carbonization is more effective than burr picking in burr pickers.
The harsh process described cause considerable fiber breakage and loss rendering any long wools used, suitable for the woolen system only.