Method and apparatus for producing nonwoven fabrics made of fibers

一种非织造织物、纤维的技术，应用在非织造布、制造工具、化学仪器和方法等方向

Active Publication Date: 2022-06-21
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

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  • Method and apparatus for producing nonwoven fabrics made of fibers
  • Method and apparatus for producing nonwoven fabrics made of fibers
  • Method and apparatus for producing nonwoven fabrics made of fibers

Examples

Experimental program
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Embodiment Construction

[0030] A plant according to the invention for producing a spunbond nonwoven made of continuous filaments 1 is shown in the drawing. According to a preferred embodiment of the invention, the continuous filaments 1 are produced from thermoplastics and particularly preferably from polyolefins. exist figure 1 The plant shown in is a spunbond nonwoven plant for producing a spunbond nonwoven made of continuous filaments 1 . Using the apparatus according to the invention, the continuous filaments 1 are spun out by means of a spinneret 2 and then cooled in a cooling device 3 . According to a preferred embodiment and in this example, a unit suction device 4 is provided between the spinneret 2 and the cooling device 3, which is used to suck out 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...

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Abstract

A method for producing a nonwoven made of fibers, in which the fibers are spun by means of at least one spinneret, subsequently cooled and laid down to form a nonwoven web on a depositing device. The nonwoven web is each subjected to thermal fluid consolidation in at least two successive consolidation stages. In the first consolidation stage, the nonwoven web is subjected to the thermal fluid in a planar manner, and then in the second consolidation stage, the nonwoven web is also subjected to the thermal fluid in a planar manner, and the pressure is additionally and simultaneously applied to the surface. Applied to a nonwoven web.

Description

technical field [0001] The invention relates to a method for producing a nonwoven fabric made of fibers, in particular thermoplastic fibers, wherein the fibers are spun with the aid of at least one spinneret, are subsequently cooled and are then laid on a laying device to form a Nonwoven webs. The invention also relates to a corresponding apparatus for producing nonwoven fabrics. Background technique [0002] Methods and devices of the type mentioned at the outset are known in practice in different embodiments. However, many of these known methods and apparatus are limited when it comes to making bulky nonwoven fabrics with low densities that have sufficient stiffness and at the same time high air permeability. Stiff and permeable nonwoven fabrics made by known methods typically have small thicknesses and undesirably high densities. SUMMARY OF THE INVENTION [0003] In contrast to this, the present invention is based on the following technical problem and provides a met...

Claims

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Application Information

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Patent Type & Authority Patents(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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