Akzona Incorporated

Heinz Linhart

Gerhard Wick

Erich Kessler

Adolf Bachmann

Erhard Siggel

Joachim Boehler

Reiner Modtler

Eberhard Kratzsch

Filament yarns composed of multicomponent fibers of the matrix/segment type are produced and processed into textile fabrics by false-twist texturing the multicomponent fibres made up of segments of varying deniers to cause softening the matrix to bond the filaments together over short, medium or longer sections of the yarn. After conversion of the yarns into fabrics, the fabrics are subjected to a shrinking treatment. The fabrics so treated have a reduced tendency to crease or wrinkle, better crease recovery and better dyeing properties. The denier of the lower denier segments should be finer than 0.6 dtex and the denier of the high denier segments should be at least 1 dtex; the weight ratio of low to high denier segments in the yarn ranges from about 25:75 to about 75:25. The matrix is preferably made of polyamide 6 while the segments are polyethylene terephthalate. The cross-sectional shapes of the fibers may e.g. resemble a toothwheel with fine peripheral segments and a coarser core, combinations of three-toothed wheels with 12 or 6 peripheral teeth or similar combinations of orange-shaped cross-sections such as 3 and 6 'slices'.

Filament yarns of multicomponent fibers and utilization therefor in

A device for the continuous application of spin finishes to a spinneret as well as a process of said application are described. The device has a flat distribution body which can be attached and detached to the exit face of a spinneret. Holes are provided in the body corresponding to the spinneret orifices for melt spinning of filaments. Also the device includes a fastening member for pressing the distribution body on to the exit face of the spinneret. This member has a feeding orifice for the spin finish. The device may also include seals arranged above and below the distribution body. The distribution body may be sieve-like or consist of a perforated foil or of a foil having channel-like recesses linked with each other and an inlet orifice for the spin finish. The foil may have raised portions that serve as baffles and that are arranged in a pattern between the individual recesses.

Device for the continuous application of liquid finish to a spinneret

A filament of a thermoplastic synthetic polymer having a plurality of adjacent, separate discontinuous cavities is made by a process wherein a silicone oil and an inert gas or gas-forming substance are dispersed in a polymer melt, and the melt is extruded into a filament. The melt contains up to and including 1% by weight of the silicone oil, based on the weight of the melt, at the time it is extruded and up to and including 10% by weight of an inert gas.

Filaments and fibers having discontinuous cavities

Continuous application of liquid finish to a spinneret

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Erlenbach, Germany

Heinz Linhart