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Method and device for perforating a non-woven fabric by means of hydrodynamic needling

A non-woven fabric, hydrodynamic technology, applied in the direction of non-woven fabrics, needle punching machines, textiles and papermaking, etc., can solve problems such as difficult perforation, and achieve the effect of long durability and increased toughness

Active Publication Date: 2014-05-21
TRUTZSCHLER NONWOVENS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the currently known devices and methods, there is the disadvantage of having more than 70g/

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 perforating a non-woven fabric by means of hydrodynamic needling
  • Method and device for perforating a non-woven fabric by means of hydrodynamic needling
  • Method and device for perforating a non-woven fabric by means of hydrodynamic needling

Examples

Experimental program
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Example Embodiment

[0060] figure 1 A device 1 for perforating nonwoven fabrics 26, 28, 34 by means of hydrodynamic needle punching is shown. The device 1 includes at least one first support 12. The support 12 includes a support surface 14, wherein the first support surface 14 includes a first ridge 8 and a first perforation 4 as a drainage opening.

[0061] in figure 1 The support 12 shown in is the drum shell of the drum 16. On the support 12, a non-woven fabric 26 can be placed. By rotating the drum 16 about the axis 18 in the rotatable direction 20, the nonwoven fabric 26 can be conveyed in the conveying direction 22. The raised portion 8 and the perforation 4 are not in figure 1 Shown in. These in figure 2 The partial view is shown in more detail.

[0062] The first support can be realized as a self-supporting roller. Alternatively, the roller includes a base roller 16 with a first support 12 which is applied as an outer layer on the base roller. This is Figure 2a Shown in.

[0063] As ano...

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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Abstract

A device (1,3) for perforating a non-woven fabric (22, 26, 28, 34) by means of hydrodynamic needling is proposed, having a first carrier element (12, 40) with a carrier surface (14, 42), wherein the first carrier surface (14, 42) has first elevations and first perforations (4, 4', 4") as drainage openings and wherein the non-woven fabric (22, 26, 28, 34) for processing can be placed on the first carrier surface (14, 42) having at least a first nozzle bar (24, 24', 36, 36') comprising openings, wherein fibres of the non-woven fabric (22, 26, 28, 34) arranged on the first carrier surface (14, 42) which are arranged on the first elevations of the first carrier surface (14, 42) can be flushed down from the elevations by means of liquid (3) emerging under high pressure from the openings of the first nozzle bar (24, 24', 36, 36'), such that perforations (4, 4', 4"); are created in the non-woven fabric (22, 26, 28, 34), and wherein a second carrier element (14, 42) is provided, having second elevations and second perforations (4, 4', 4") as drainage openings, wherein the elevations of the second carrier element (12, 40) are spaced in relation to each other and the non-woven fabric (22, 26, 28, 34) provided with the perforations (4, 4', 4") can be positioned on the second carrier element (12, 40) such that the elevations of the second carrier element (12, 40) protrude into the perforations (4, 4', 4") of the non-woven fabric (22, 26, 28, 34) arranged on the second carrier element (12, 40), wherein at least a second nozzle bar (24, 24', 36, 36') is provided by means of which the non-woven fabric (22, 26, 28, 34) is subjected to a liquid (30) emerging under high pressure from the openings of the second nozzle bar (24, 24', 36, 36').

Description

technical field [0001] The invention relates to a method for producing a support for a device for perforating a nonwoven by hydrodynamic needling according to claim 1 by means of the preambles according to claims 7 and 12 Device for the perforation of nonwoven fabrics by hydrodynamic needling and a method involving the perforation of nonwovens by means of hydrodynamic needling according to claim 25. Background technique [0002] Currently known devices for perforating nonwoven fabrics by hydrodynamic needling comprise at least one support having a first support surface. The first support surface includes a first raised portion and a first perforation as a drainage opening. The nonwoven for treatment may be placed on a support surface. The fibers of the nonwoven fabric arranged on the support surface will be washed from said elevations by the liquid flowing out through the openings of the nozzle bar, thereby creating perforations. However, in the currently known devices an...

Claims

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Application Information

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IPC IPC(8): B26F1/26D04H1/492
CPCD04H1/492D04H1/495D04H18/04B26F1/26
Inventor 弗洛里安·赛尔斯乌尔里希·明斯特曼
Owner TRUTZSCHLER NONWOVENS
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