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Melt-spinning method and melt-spinning apparatus for producing crimped yarn

A technology of melt spinning and crimping, which is applied in the direction of melt spinning, artificial filament heat treatment, filament/thread forming, etc., and can solve problems such as single filament bundle

Inactive Publication Date: 2015-04-29
OERLIKON TEXTILE GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the problem with the current state of the art is that the temperature of the filaments in the tow prior to compression is substantially dependent on the expansion of the tow over the heated draw godet pair

Method used

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  • Melt-spinning method and melt-spinning apparatus for producing crimped yarn
  • Melt-spinning method and melt-spinning apparatus for producing crimped yarn

Examples

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Embodiment Construction

[0027] figure 1 A view of a first embodiment of a melt spinning apparatus for producing crimped filaments from thermoplastic polymers according to the invention is schematically shown in . This exemplary embodiment of the melt spinning device according to the invention is shown as a filament run, wherein such a melt spinning device is also used to produce a plurality of filaments side by side in parallel.

[0028] exist figure 1 The embodiment of the melt spinning apparatus according to the invention shown in has a spinning device 1, a cooling device 5, a drawing device 11, a texturing device 15, a finishing device 20 and a winding device 24, which are relative to the filament path arranged sequentially. The spinning device 1 is shown in this exemplary embodiment by a spinning head 2 . The spinneret 2 is designed to be heated in order to regulate the temperature of the components and lines used to conduct and distribute the polymer melt. The spinning head 2 thus has on its...

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Abstract

The invention relates to a melt-spinning method and a melt-spinning apparatus for producing a crimped yarn. In this case, by spinning a plurality of filaments, at least one filament bundle is produced from a thermoplastic polymer, cooled, drawn and compressed by means of an air stream in a stuffer box to form a yarn plug, wherein the yarn plug is disentangled to form a crimped yarn and wound up to form a package. In order to be able to set the tendency to shrink and the crimp stability independently of one another on the crimped yarn, according to the invention, prior to crimping, the drawn filament bundle is heated to a relaxation temperature for relaxation in a first heat treatment and to a crimping temperature for preliminary temperature control in a second heat treatment. To this end, at least one further treatment means for heat treatment of at least one filament bundle prior to running into the stuffer box is provided between a drawing device and a texturing device.

Description

technical field [0001] The invention relates to a melt spinning method for producing crimped filaments according to the preamble of claim 1 and a melt spinning method for producing crimped filaments according to the preamble of claim 7 wire equipment. Background technique [0002] A method of this type as well as an apparatus of this type are known from WO 2011 / 138 302 A1. [0003] When producing crimped filaments, which are preferably used in the manufacture of carpets, in the melt spinning process, all processing steps for forming the desired physical properties of the yarn are generally performed sequentially. First, a plurality of monofilaments are extruded from a polymer melt, which are gathered together as a monofilament bundle after cooling, oiled and stretched. After the stretching of the monofilament bundle, the monofilament bundle is compressed in a stuffer box, into which the monofilament bundle is conveyed by means of a preferably heated air flow. The monofila...

Claims

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Application Information

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IPC IPC(8): D01D5/22D02G1/12D02J13/00D01D10/02
CPCD01D5/22D01D10/02D02J13/001D01D5/08D10B2331/04D10B2503/04
Inventor M·施廷德尔
Owner OERLIKON TEXTILE GMBH & CO KG
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