Textiles: spinning – twisting – and twining – Apparatus and processes – Open end spinning
Patent
1982-09-03
1984-03-13
Watkins, Donald
Textiles: spinning, twisting, and twining
Apparatus and processes
Open end spinning
57404, 57408, 57413, D01H 112, D01H 7882, D01H 7892, D02G 334
Patent
active
044359551
ABSTRACT:
A method and apparatus for open-end spinning of novelty yarn produces novelty yarns in a simple manner. A sliver is fed to the fiber separating device of an open-end spinning apparatus to form distinct fibers, the fibers are air transported in a fiber flow path to the twisting device, controlled formation of effects (particularly slubs) is effected during air transport of the distinct fibers in their path, the formed effects are intermittently passed to the twisting device (e.g. pseudo-randomly), the fibers fed to the twisting device are twisted into a continuous strand of effect yarn (particularly slub yarn), and the continuous strand of effect yarn is taken up. The controlled formation of effects may be accomplished in a number of manners: introducing a needle making an angle of 25.degree.-45.degree. with respect to the direction of fiber flow into the fiber flow path in the transport section; pivoting an elongated member about an axis perpendicular to the direction of fiber flow so that a free end thereof engages, or substantially engages, a wall of the transport section to collect fibers; or by pivoting an elongated member about an axis skew with respect to the direction of fiber flow, into contact, or substantial contact, with a wall of the transport section.
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Burlington Industries Inc.
Watkins Donald
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