LPT 312: Abattoir Practices and Animal Products Technology (1+1)

CLASSIFICATION OF WOOL

• The wool is classified in the similar manner as hides and skin, according to the use for which it is intended.
• Wool is roughly classified into three classes, viz., combing, clothing and carpet wool depending upon the length of the fibre.
• The long fibres are combed and then twisted during the spinning of the yarn.
• The shorter wools cannot be successfully twisted and therefore they are carded and mixed, so that the fibres point in different directions. They are than drawn into yarn.
• The materials made from combing are called worsted; those from carded are called woolens.