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Fabric Comprising Shaped Conductive Monofilament Used in the Production of Non-Woven Fabrics

a technology of conductive monofilament and fabric, which is applied in the direction of weaving, manufacturing tools, coatings, etc., can solve the problems of undetected disturbance of the formation of the web, web flutter, air leakage between, etc., to minimize or eliminate the flutter of the web, improve the fabric surface, and minimize the effect of air leakag

Inactive Publication Date: 2011-05-26
MONNERIE JEAN LOUIS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0012]It is therefore a principal object of the invention to provide for the production of non-woven webs, structures or articles through, for example, the melt-bonding process, which minimizes air leakage, particularly that caused by the forming fabric.
[0013]It is a further object of the invention to provide for a forming fabric for the production of non-woven webs, structures or articles that minimizes or eliminates web flutter.

Problems solved by technology

In high speed operations with high air flow, air leakage can occur between the top press roll and the forming fabric surface or through the fabric itself.
Air leakage can result in undesired disturbance to the formation of the web.
Excessive air carried by the fabric during web transportation may result in causing the web to flutter.
In addition, in a melt-bonding process (which incidentally can produce spun-bond or melt-blown or any combination of the two), there is a large amount of static electricity generated.

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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  • Fabric Comprising Shaped Conductive Monofilament Used in the Production of Non-Woven Fabrics
  • Fabric Comprising Shaped Conductive Monofilament Used in the Production of Non-Woven Fabrics
  • Fabric Comprising Shaped Conductive Monofilament Used in the Production of Non-Woven Fabrics

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Embodiment Construction

[0022]Turning now more particularly to the figures where like elements will be similarly numbered, FIG. 1 shows schematically an apparatus 10 for forming a non-woven web, structure or article. The apparatus 10 is part of a melt-bond forming machine which forms a flat web or non-woven web, structure or article by a process other than weaving. Non-woven webs, structures or articles typically comprise fibers or filaments bonded together. In general, spun-bonding involves molten polymer which is extruded from a spinning head or spinneret which produces a curtain of strands. Illustrative of such an apparatus is that set forth in U.S. Pat. No. 5,814,349. A high flow of air is used to aerodynamically stretch, elongate or attenuate the strands which, after passing through a diffuser, are deposited on a forming fabric 12. Presses are used to compress the deposit of filaments. As shown, by way of example, there are two presses, a downstream press 14 and an upstream press 16 each of which has ...

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Abstract

In an apparatus for the production of a non-woven web, structure, or article using a spun-bonding process in combination with a forming fabric which is woven having flat CMD yarns, flat MD yarns or both with some or all of such yarns being conductive so as to dissipate static electricity.

Description

CROSS REFERENCE TO RELATED APPLICATION [0001]This application is a continuation of U.S. patent application Ser. No. 10 / 142,512 filed May 9, 2002, the disclosure of which is herein incorporated by reference.FIELD OF THE INVENTION [0002]The present invention is directed towards a fabric used in combination with a melt-bonding apparatus to form, transport and bond a web into a non-woven fabric.BACKGROUND OF THE INVENTION[0003]There presently exists apparatus for the production of spun-bond webs, structures or articles formed from filaments or fibers typically made from a thermoplastic resin. Such an apparatus is disclosed in U.S. Pat. No. 5,814,349 issued Sep. 29, 1998, the disclosure of which is incorporated herein by reference. These typically include a spinneret for producing a curtain of strands and a process-air blower for blowing process air onto the curtain of strands for cooling the same to form thermoplastic filaments. The thermoplastic filaments are then typically, aerodynami...

Claims

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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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): D04H1/16D03D3/00D03D1/00D03D15/00D04H1/736D04H17/00
CPCB05D7/00D04H3/16D03D3/00D03D15/00D04H1/736
Inventor MONNERIE, JEAN-LOUISDEBYSER, PASCAL
Owner MONNERIE JEAN LOUIS
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