Method and device for melt-blowing, forming and plaiting finite fibres to produce a fibrous nonwoven

A non-woven fabric and fiber-forming technology, which is used in melt spinning, textile and papermaking, fiber processing, etc.

Active Publication Date: 2014-12-24
OERLIKON TEXTILE GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this fiber deposition is that a part of the air flow acts directly on the composite segment which is deposited in the forming gap

Method used

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  • Method and device for melt-blowing, forming and plaiting finite fibres to produce a fibrous nonwoven
  • Method and device for melt-blowing, forming and plaiting finite fibres to produce a fibrous nonwoven
  • Method and device for melt-blowing, forming and plaiting finite fibres to produce a fibrous nonwoven

Examples

Experimental program
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Embodiment Construction

[0022] in figure 1 A cross-sectional view schematically shows the first embodiment of the device of the present invention. This embodiment has a melt blow nozzle 1 and a forming element 2 held under the melt blow nozzle 1. The forming element 2 is formed by two rollers 3 driven towards each other, between which a forming gap 6 is formed. The forming gap 6 extends in the vertical direction between the rollers 2.1 and 2.2, wherein the rollers 2.1 and 2.2 are symmetrical about the longitudinal axis of the melt blowing nozzle 1. The driving devices of the drums 2.1 and 2.2 are not shown in detail here and can be realized by a driving group or an independent driving device. The drums 2.1 and 2.2 each have an air-permeable drum wall 3 which rotates in the fiber blowing direction at a circumferential speed given by the driving device of the drums 2.1 and 2.2.

[0023] The melt blowing nozzle 1 is arranged on the frame 13 in a height adjustable manner above the drums 2.1 and 2.2. Here...

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Abstract

The invention relates to a method and a device for melt-blowing, forming and plaiting finite fibres to produce a fibrous nonwoven. Here, the fibre streams which are produced by a melt-blowing die and a hot air flow are blown into a forming gap of a forming element, wherein the fibres are joined together within the forming gap to produce a fibre composite. In order to influence the filling and the forming of the fibres within the forming gap directly below the melt-blowing die, according to the invention the fibres are freely guided substantially vertically from the melt-blowing die as far as the forming gap via an adjustable blowing section, wherein the adjustability of the blowing section lies in the range from 100 mm to 2000 mm. In this way, both very fine fibres and coarse fibres can advantageously be formed to produce a loose fibre composite.

Description

Technical field [0001] The present invention relates to a method according to the preamble of claim 1 for meltblowing, forming and laying finite fibers into a fiber nonwoven fabric, and a method according to the preamble of claim 7 A device for melt-blowing, forming and laying finite fibers into fiber non-woven fabrics. Background technique [0002] In the prior art, in order to manufacture fibrous nonwoven fabrics from synthetic fibers, two different methods and devices are known in principle. The difference between the two methods is not only in the production of fibers, but also in the placement of fibers to form a fibrous nonwoven fabric. [0003] Through a variant called the melt blowing process in the professional field, the fiber newly extruded by the melt blowing nozzle is drawn directly through the hot air stream when it is discharged from the nozzle hole of the melt blowing nozzle and guided as a fiber flow into a fiber non-woven fabric Things. This basically produces ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/56D04H1/70D01D5/098
CPCD04H1/56D01D5/0985D04H1/70
Inventor G·许特B·波特拉茨J·纽曼-罗德基希A·巴伯
Owner OERLIKON TEXTILE GMBH & CO KG
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