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Method and device for producing a nonwoven fabric from fibres

A non-woven fabric, fiber technology, applied in the direction of non-woven fabrics, manufacturing tools, chemical instruments and methods, etc.

Active Publication Date: 2019-10-18
REIFENHAEUSER GMBH& CO KG MASCHFAB +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, many of these known methods and devices are limited when it comes to producing bulky nonwovens with low density, which should have sufficient stiffness and at the same time high air permeability.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Method and device for producing a nonwoven fabric from fibres
  • Method and device for producing a nonwoven fabric from fibres
  • Method and device for producing a nonwoven fabric from fibres

Examples

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Embodiment Construction

[0030] The drawing shows a device according to the invention for producing a spunbonded nonwoven made of continuous filaments 1 . According to a preferred embodiment of the invention, the continuous thread 1 consists of a thermoplastic and particularly preferably of a polyolefin. exist figure 1 The plant shown in is a spunbond nonwoven plant for the production of spunbond nonwovens made of continuous filaments 1 . With the device according to the invention, a continuous filament 1 is spun out by means of a spinneret 2 and subsequently cooled in a cooling device 3 . According to a preferred embodiment and in this exemplary embodiment, a monomer suction device 4 is arranged between the spinneret 2 and the cooling device 3 for suctioning the spinning fumes generated in the intermediate space. Preferably and in this exemplary embodiment, the cooling device 3 has two cooling chambers 3a, 3b arranged one above the other or one after the other in the direction of flow of the filame...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

The invention relates to a method for producing a nonwoven fabric from fibres, wherein the fibres are spun by means of at least one spinneret, are cooled and then deposited on a collection device to form a nonwoven web. The nonwoven web undergoes hot fluid bonding during at least two consecutive bonding steps. In a first bonding step, the surface of the nonwoven web is subjected to a hot fluid and, in a second bonding step, the surface of the nonwoven web is also subsequently subjected to a hot fluid and, in addition and at the same time, surface pressure is exerted on the nonwoven web.

Description

technical field [0001] The invention relates to a method for producing nonwovens made of fibers, in particular thermoplastic fibers, wherein the fibers are spun by means of at least one spinneret, subsequently cooled and then deposited on a depositing device in a Nonwoven fabric web. The invention also relates to a corresponding apparatus for producing nonwovens. Background technique [0002] Methods and devices of the type mentioned at the outset are known in practice in various embodiments. However, many of these known methods and devices have limitations when it comes to producing bulky nonwovens with low density, which should have sufficient stiffness and at the same time high air permeability. Rigid and permeable nonwovens produced by known methods generally have a low thickness and an undesirably high density. Contents of the invention [0003] On the other hand, the present invention is based on the technical problem of specifying a method of the type mentioned a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D04H1/558D04H3/147B30B5/06B30B15/34
CPCD04H1/558D04H3/147D04H3/163B29C71/0081B32B38/0008B32B38/0036B32B38/004
Inventor C·钦克马尼D·弗赖S·奥伦德特T·珀姆瑟尔
Owner REIFENHAEUSER GMBH& CO KG MASCHFAB
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