Spinneret for spinning yarn, spinning device for spinning yarn and method for spinning yarn

A spinning device and spinneret technology, which can be used in spinneret assemblies, drawing spinning, weaving, etc., can solve problems such as high energy consumption and increased process equipment consumption.

Inactive Publication Date: 2016-07-06
吕德・格金
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This disadvantage can be at least partly eliminated by heating the air reaching the spinneret, but this requires higher energy consumption
It is also possible to heat individual spinnerets or spinning nozzles, here also increasing the expenditure on process equipment

Method used

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  • Spinneret for spinning yarn, spinning device for spinning yarn and method for spinning yarn
  • Spinneret for spinning yarn, spinning device for spinning yarn and method for spinning yarn
  • Spinneret for spinning yarn, spinning device for spinning yarn and method for spinning yarn

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Embodiment

[0040] exist figure 2 An arrangement of a plurality of spinnerets 1 in the form of spinning nozzles, using image 3 A configuration with three openings with a diameter of 0.25 mm. For each hole or hole, the throughput of polypropylene is 1.5g / min, the melt flow index MFI (melt flow index, also known as MFR, melt flow rate) is 28 and 1,200, the value according to ISO1133 is measured on a standardized device, indicating how many grams of heated thermoplastic polymer are extruded through a spinneret within 10 minutes under the action of a fixed force, here for polypropylene, it is at 230 ° C and At 2.16 kg, the mean filament diameter was obtained after splitting, measured in a microscope from 20 individual filaments: at 1.5 g / min and MFI28, the mean filament diameter was measured with 1 capillary with a diameter of 0.25 mm It is 1.1μm, the minimum diameter is 0.8μm, under MFI1,200, the average wire diameter is 0.95μm, the minimum diameter is 0.4μm. In the case of three capill...

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Abstract

The invention relates to a spinneret and an accelerating nozzle assembly for a spinning device. The spinning device spins from a spinning material by splitting the monofilaments ejected from the spinneret and guided through the accelerating nozzle. The thread head has a rotationally symmetrical spinneret inner part and a rotationally symmetrical outer part which at least partially surrounds the spinneret inner part and which has in its longitudinal direction an opening for at least one outlet opening The spinneret tip portion supplies the passage of the spinning material, the spinneret inner part is connected with the outer part, so that at least one thermal insulation chamber is arranged between the spinneret inner part and the outer part in the longitudinal direction, wherein The insulation chamber receives the gas, thereby forming an insulation gas layer or providing an insulation vacuum therein, and wherein the spinneret and the acceleration nozzle are rigidly connected to each other to form a unit so that the center of the spinneret is accurately placed at the center of the acceleration nozzle .

Description

technical field [0001] The invention relates to a spinneret for spinning yarn from a spinning stock, a spinning device having a plurality of spinnerets and a method for spinning yarn. Background technique [0002] Generally, spinning is carried out by longitudinally drawing the filament-forming substance from a spinneret, said longitudinal stretching being carried out mechanically by means such as a winder applying a force to the filament; or by an accompanying gas flow, mainly air Flow is performed aerodynamically, as in spunbond operations, which also includes meltblowing. Thereby, outside the spinneret holes, threads are obtained with a diameter smaller than that of the spinneret holes. [0003] The process differs from split spinning in which multiple filaments are obtained from one orifice by splicing or splitting the liquid, i.e. the spinning stream used to form the filaments, whether it is The melt is also a solution, as described in EP1192301 or EP1358369. At the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01D4/02D04H1/56
CPCD01D4/025Y10T442/681D01D4/02D01D5/00D04H1/56D01D4/027D01D5/14D04H3/00
Inventor 吕德·格金
Owner 吕德・格金
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