Abstract:
A two-component yarn is created from a fiber component and a component consisting of a filament yarn, in which the fiber component is formed by a drawn sliver that is prestrengthened by means of pneumatic false-twist spinning and is twisted together with the filament yarn.
Abstract:
An arrangement for the winding-up of a double yarn formed of two yarn components that were prestrengthened by pneumatic false-twist spinning onto a cross-wound spool is disclosed. It is provided that between the yarn feeding device and the traverse motion device there is provided a deflecting device for deflecting the double yarn. The yarn deflecting device moves synchronously, but out-of-phase with the traverse motion device to deflect the double yarn with a to-and-fro motion in such a way that always the same moving path length exists for the double yarn between the feeding device and the traverse motion device.
Abstract:
Rubber-reinforcing polyamide fiber cords are disclosed which are each obtained by primarily twisting an aromatic polyamide filament yarn, doubling a plurality of thus primarily twisted yarns and finally twisting doubled yarns in a twisting direction opposite to that of the primary twist yarn to obtain a plied yarn, and applying a rubber adhesive to the thus obtained plied yarn. N and M satisfy the following relation: 1.05.ltoreq.M/N.ltoreq.1.6 in which N and M are the number of primary twists and the number of the twists in the cord, respectively.
Abstract translation:公开了橡胶增强聚酰胺纤维帘线,其通过主要扭转芳族聚酰胺长丝纱线,将多个这样的主捻纱加倍,最后在与一次捻纱线相反的扭转方向上扭转双纱,从而获得绒毛 纱线,并将橡胶粘合剂施加到如此获得的合股纱线上。 N和M分别满足以下关系:1.05 = M / N 1.6,其中N和M分别是初级扭曲的数量和绳的捻数。
Abstract:
A yarn twisting apparatus is disclosed which comprises a central spindle and a coaxially disposed yarn package carrier. A central wheel is fixedly mounted to the spindle, and the spindle and yarn package carrier are mounted for relative rotation about the axis of the spindle. Also, an offset yarn guide is mounted to the yarn package carrier, and such that a yarn may be withdrawn from a package mounted on the yarn package carrier, and looped about the central wheel and then around the offset yarn guide. In one embodiment, a withdrawal force is applied to the yarn which causes the central wheel and offset yarn guide to relatively rotate and impart twist to the yarn, and in other embodiments one of the members is driven to impart the relative rotation. Embodiments are also disclosed for imparting a double twist to the yarn.
Abstract:
A multiple strand twine formed of a plural of monofilaments and multiple filaments wherein a multiple strand formed by undertwisting monofilament along with a plural of the multiple filaments is combined with a monostrand formed by twisting one monofilament alone in the same direction of the undertwisting, the combination of the both strands being then overtwisted in the direction opposite to the undertwisting. And a fish net formed of the above twines.
Abstract:
The twisted yarn is prepared by twisting (1) a single yarn comprising a water-insoluble fiber having a degree of water swelling of at least 10 cc/g or (2) a plurality of single yarns comprising a water-insoluble fiber having a degree of water swelling of at least 10 cc/g or a plurality of yarns comprising at least 50% by weight of such single yarns and water-nonswellable yarns so that the twist constant is at least 2.5.
Abstract:
The invention relates to a process for the manufacture of a core/skin or core/sheath yarn, whose skin- or sheath-forming filament is wrapped around the core yarn in alternating "S" and "Z" directions. It relates furthermore to a device to carry out the process using otherwise known single spindle friction falsetwisting units.
Abstract:
The distributing device for supplying compressed air to the jet nozzles of swirl chambers relates to apparatus for making a self-twisted product. The distributing device comprises a stationary hollow housing with apertures and a passageway for supplying compressed air, and also a rotary distributing member of a cylindrical shape, in the form of a sleeve with a bottom, mounted in the internal space of the housing with a gap left therebetween, this gap permanently communicating with the compressed air supply passageway. The open end of the distributing member faces the compressed air supply passageway and, the member having passages made in the cylindrical wall thereof, periodically communicating through the apertures in the housing with the jet nozzles of the swirl chambers, to supply compressed air thereinto. The disclosed structure of the distributing device enables to increase the reliability of its performance and to provide for the stability of the flow of the process of obtaining the self-twisted product.
Abstract:
Alternate-twist plied yarns, wherein a secondary strand for providing a special effect is plied with at least two alternately, false-twisted primary strands, are made by converging the secondary strand with the primary strands downstream of the point at which the primary strands are converged. The nodes at the twist reversal points for the secondary strand are displaced with respect to nodes of the primary strands. Improved effectiveness from the secondary strand in the plied yarn, such as better antistatic performance, can be realized. Where a node of a secondary strand overlaps a node of the primary strands, whether or not the node centers are displaced, a preferred configuration is one wherein the secondary strand forms a node by wrapping around only one of the primary strands in a portion of the primary node.
Abstract:
False twist textured yarns are described which are composed of a plurality of continuous filaments forming a false twist textured core portion and a plurality of wrapper false twist textured continuous filaments, said wrapper filaments being of a higher bulk than the core filaments, said filaments periodically wrapping around the core filaments and forming reversing helices at intervals along the yarn.