Question

Name some Sustances from raw wool before manufacturing yarn

Answer 1

Answer:

please see the explanation

Explanation:

In order to make different articles, the raw wool is processed which starts with sorting of the fibres. The fibres are sorted on the basis of length, fineness, etc. The sorting is followed by cleaning of the fibres. Using a suitable detergent, the fibres are cleaned from lanolin (an oily substance) and suint (the dried perspiration of sheep). The cleaned wool fibres are then dried and disentangled. Thereafter, they are drawn into a straight continuous thread. This process is called carding. The kind of yarn that are produced may be woolen yarn or worsted yarn.

For the production of woolen yarn, the web is split into fine thin strands, by a process called roving. It is then spun into woolen yarn. Woolen fabric such as tweed is woven from woolen yarn. It is a bulky fabric in which short woolen fibres are arranged randomly. It does not have smooth surface.

For the production of worsted yarn, the web is processed by the machines that:

straighten the fibres,

make them parallel,

remove all the short fibres

The resultant woolen strand is then condensed by passing it through several machines, until a very thin strand of worsted roving is obtained. it is then spun into smooth yarn.