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A composite nonwoven material containing continuous filaments and short fibres

A technology of non-woven materials and composite materials, applied in the direction of non-woven fabrics, textiles and paper, manufacturing tools, etc., can solve the problems of easy abrasion and depilation, poor continuous filament adhesion, etc.

Active Publication Date: 2007-01-10
ESSITY HYGIENE & HEALTH AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In such materials, the continuous filaments are poorly bonded, and the side containing mostly short fibers is prone to fraying and fluffing

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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  • A composite nonwoven material containing continuous filaments and short fibres
  • A composite nonwoven material containing continuous filaments and short fibres
  • A composite nonwoven material containing continuous filaments and short fibres

Examples

Experimental program
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Embodiment Construction

[0014] figure 1 It is schematically shown that a web of non-bonded continuous filaments is laid down on a conveyor belt 1 in a production line. The conveyor belt 1 is air-permeable and can consist, for example, of a woven fabric or a wire mesh. The continuous filaments laid on the web are transported through conventional equipment 2 for the manufacture of spunbond filaments.

[0015] Spunbond filaments are produced by extruding molten polymer through a spinneret, which may have a width of 3000-5000 holes per meter, typically 0.5 mm in diameter. The extruded polymer is then accelerated by high velocity air by means of a slot drawing attenuator or quench air. The slit stretch regulator acts as a wide injector and is fed compressed air which is released from a narrow slit at a very high air velocity (10000-20000 m / min). Very high filament speeds up to 6000 m / min can be obtained. As the filament is drawn by the quench air in a closed system, the velocity of the air is increase...

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 present invention relates to a nonwoven material consisting of a mixture containing continuous filaments and short fibres, the continuous filaments being substantially mechanically bonded to each other due to entangling of fibres and filaments. According to the invention the continuous filaments in the material have a projected coverage of at least 1.1 and not more than 1.7. The invention also relates to a method of manufacturing such a nonwoven material.

Description

technical field [0001] The present invention relates to a composite nonwoven material comprising continuous filaments and staple fibers, and a method of making the nonwoven material, said method comprising the steps of laying down a layer of fibers on a web of nonbonded continuous filaments , wet entanglement of layers of continuous filaments and fibers to form a composite nonwoven material, after which the material is dried. Background technique [0002] Nonwovens for wiping applications should be strong, absorbent, abrasion resistant and low in linting, ie fibers should not shed from the material during normal use. [0003] One method of making nonwoven materials is to use hydroentangling or spunlace to mix and bond the components of the material. Wet entangling is described, for example, in CA Patent No. 841938. It is known to produce composite nonwovens comprising continuous filaments and staple fibers by wet entangling, see for example EP-B1-0333228, EP-B1-0938601 and...

Claims

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Application Information

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IPC IPC(8): D04H1/46D04H5/02D04H1/45B23B5/26D04HD04H1/49D04H5/03
CPCD04H5/03
Inventor 拉尔斯·芬戈尔安德斯·斯特罗林汉努·阿霍涅米米卡埃尔·斯特兰德奎斯特
Owner ESSITY HYGIENE & HEALTH AB