Bayer Aktiengesellschaft

Wolfgang Backer

Wolfram Wagner

Ralf Miessen

Karlheinz Feltgen

Roland Weisbeck

Holger Drews

Gunther Hahn

Heinzbert Wojahn

Josef Jelinski

Hans-Theo Esser

Method and device for winding continuous threads or yarns to produce yarn bobbins having thread reserves, wherein the bobbins are automatically changed, without the need for a catch slot, to achieve automatic, loss-free and highly reliable changing of full bobbins with empty bobbins, and the full bobbins include a thread reserve lap which is easily accessible on the bobbin edge and having a thread which runs from the thread reserve into the bobbin.

Method and device for continuous loss free bobbin change

An improved method for the after-treatment of washed and dried fibre cable having a minimum mass of 250 ktex by crimping, fixing, cooling and optionally cutting or tearing is achieved in that the band width of the cable issuing from the drier with a covering density of at most 5 ktex/cm is reduced by at least 50% of the original band width with a corresponding increase in the packing density, is crimped in a stuffer box crimping means at a stuffer box pressure of from 4 to 10 N/cm and a stuffer box temperature of from 80.degree. to 95.degree. C., the crimping is fixed in or immediately after the stuffer box, the cable is deposited on the surface of an air-permeable conveyor belt, air is blown or sucked there through fibre package or conveyor belt and the cable is then optionally supplied to a tearing converter or a cutting machine.

Method for the multi-stage fibre cables and the apparatus required for it

The invention relates to a nozzle device for texturizing filament yarns of synthetic, high molecular weight substances by means of a hot medium comprising heated gases or vapors, comprising three chambers arranged on after another, a first chamber through which the hot medium flows into a second chamber, the yarn being drawn into the second chamber at an angle to the direction of flow of the gaseous medium, the yarn being heated by the gaseous medium in the second chamber, and a third chamber in which the thread is compressed with the formation of plugs, the compression chamber being formed of a plurality of elastically flexible rods which are arranged on the surface of a right circular cylinder or a right circular truncated cone and fixed at one end on the end of the second chamber, the rods being of two different lengths.

Nozzle device for the production of texturized filament yarns

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Pulheim, Germany

Wolfgang Backer