Method of and apparatus for removing dirt particles from staple fibers and for straightening said fibers in an open-end spinning process

• Main Authors: SKALA, JOSEF, VECERA, MILOS
• Format: Patent
• Language: English
• Published: 10.02.1981
• Subjects: NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING; SPINNING OR TWISTING; TEXTILES

A method of and apparatus for removing dirt particles from staple fibers and straightening the resulting clean fibers in an open-end spinning unit which includes means for feeding sliver, fiber opening means, and means for twisting the thus cleaned and opened fibers. Fibers together with dirt particles contained therein are accelerated by the opening action and are exposed to a first air flow which, by its deceleration due to its expansion, separates the dirt particles from the fibers. Immediately thereafter, the thus cleaned fibers are exposed to a second air flow by which they are straightened due to an acceleration imparted to them by said second air flow. In the apparatus of the invention there are provided three sectors, viz. a fiber opening sector, a dirt discharging sector, and a fiber straightening sector, in that order, the dirt discharging sector merging with the fiber straightening sector via a widened mouth.