What is purpose of hackling, drawing, spining , winding, packing? What is set weight ? What is draft ? What is good and bad draft ?

Question

Accepted Answer

Hackling, drawing, spinning, winding, and packing are processes in textile engineering. Set weight, draft, and good/bad draft are important terms.

Hackling is the process of combing fibers to remove impurities and align them.
Drawing is the process of reducing the thickness of fibers by pulling them through a series of rollers.
Spinning is the process of twisting fibers together to create yarn.
Winding is the process of transferring yarn onto a spool or bobbin.
Packing is the process of packaging yarn or fabric for shipping or storage.
Set weight refers to the weight of a given length of yarn or fabric.
Draft is the ratio of the size of the input fibers to the size of the output fibers.
Good draft results in strong, even yarn, while bad draft results in weak, uneven yarn.

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