Describe the cultivation-to-yarn story of cotton by drawing a flowsheet
Answers
Answer:
A yard is a continuous and uniform mass of fibresbounded together by the insertion of twist. Yarns are raw material of the fabric. The thickness of the yarn varies to a wide range. Normally, the thickness of a yarn is expressed in terms of count. Count may be defined as the number which expresses the fineness or coarseness of a yarn. The yarns may be spun from staple fibre or continuous filaments. Normally majority yarns are produced from staple fibre. To produce yarns from staple fibres, a wide range of machines are needed, called spinning machines.
A process flow chart of spinning machines and step-wise process sequence for producing cotton staple yarn is shown below:
Cotton in bale form
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Blow room machine
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Carding machine
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Drawing machine
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Roving machine
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Spinning machine
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Cotton yarn.