Process Control in Drawing - Tapa blanda

Sinopsis

In the spinning process, the unevenness of the product increases from stage to stage after the draw frame due to the steady decrease in number of fibres in the section. Uniform arrangement of fibres becomes more difficult because of their smaller number. Drawing is the important process where the card slivers are doubled and drafted in order to level the unevenness present in each sliver. Doubling is the combining of several slivers and drafting is attenuation. Drawing therefore involves the processes of drafting and doubling, with good fibre control being of the essence throughout.

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