EP2049719A2 - Method for manufacturing a non-woven fabric based on natural wool, plant for performing such method and product obtained by such method - Google Patents

Method for manufacturing a non-woven fabric based on natural wool, plant for performing such method and product obtained by such method

Info

Publication number
EP2049719A2
EP2049719A2 EP20070825957 EP07825957A EP2049719A2 EP 2049719 A2 EP2049719 A2 EP 2049719A2 EP 20070825957 EP20070825957 EP 20070825957 EP 07825957 A EP07825957 A EP 07825957A EP 2049719 A2 EP2049719 A2 EP 2049719A2
Authority
EP
European Patent Office
Prior art keywords
fibres
wool
flocks
needle
woven fabric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20070825957
Other languages
German (de)
French (fr)
Inventor
Alberto Schiavi
Lorenzo Pernigotti
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ORSA Srl
Original Assignee
ORSA Srl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ORSA Srl filed Critical ORSA Srl
Publication of EP2049719A2 publication Critical patent/EP2049719A2/en
Withdrawn legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4266—Natural fibres not provided for in group D04H1/425
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
    • D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]

Definitions

  • the present invention concerns a method and a plant for the manufacture of a non-woven fabric, in particular a non-woven fabric based on natural wool, as well as the product obtained by- such method.
  • a non-woven fabric is a substantially bi- dimensional, semi-processed product, which is obtained by- assembling a plurality of natural or synthetic fibres of a certain length. From this point of view, it is radically different from a classic woven fabric, which is instead put together starting from yarns of indefinite length and using weaving machines which accomplish a classic weft-warp configuration .
  • a needle punching machine is a work station equipped with one or more pairs of arrays of opposite needles (having specific arrangements) , which are interpenetrated and alternately moved apart, while a veil of fibres to be processed is made to move between the same,- when the two opposite arrays of needles are repeatedly moved closer and further apart, causing the needles to interpenetrate, the interposed fibres are "needle punched", i.e. they interleave and mechanically connect with one another: this allows to impart a certain cohesion to the veil of fibres.
  • the consistence and the physical properties of the natural wool fibres are such that the needle punching process may work - i.e. it may supply a stable non-woven fabric - only in specific conditions, i.e. when the veil of raw material is of an adequate basic weight and when the needles are arranged diagonally and/or characterised by the presence of special hooks .
  • the object of the present invention is hence that of providing a plant and relative treatment method for obtaining non-woven fabrics based on natural wool.
  • a further object of the invention is to provide a product of non-woven fabric based on natural wool which is soft, with a good handle, resistant (also to dying treatments) and suited to a number of applications.
  • fig. 1 is a schematic view illustrating an exemplifying plant of the invention
  • fig. 2 is an elevation side view of an exemplifying plant of the invention
  • fig. 3 is a section view of an exemplifying plate of needles of the needle punching machine employed in the invention
  • fig. 4 is an elevation view of a needle of the plate of fig. 3
  • fig. 5 is a schematic view of an enlarged detail of the water jet station shown in fig. 2; figs.
  • 6A and 6B are microscope pictures, with 4X lens, 40X eyepiece, 128X video enlargement and 1OX lens, IOOX eyepiece, 320X video enlargement, respectively, of the fabric according to the invention after needle punching;
  • figs . 7A and 7B are pictures as in figs . 6A and 6B of the non-woven fabric after treatments with water jets,- and figs. 8A and 8B are pictures as in figs. 6A and 6B of the non-woven fabric after a dying treatment.
  • the manufacturing process provides to start from processed wool, in a manner known per se, so as to have flocks of sufficient volume and uniformity.
  • This first treatment may be performed for example with any known-type mechanical process.
  • the wool flocks are then mixed with variously-sized flocks of synthetic fibres, such as fibres of polyester, polyamide, viscose, acrylic, bamboo, PLA and preferably microfibre, in an amount ranging from 20 to 50% by weight, better about 30%.
  • synthetic fibres such as fibres of polyester, polyamide, viscose, acrylic, bamboo, PLA and preferably microfibre, in an amount ranging from 20 to 50% by weight, better about 30%.
  • microfibre flocks are particularly preferred, which impart excellent mechanical and physical qualities to the final woollen fabric,- a particularly suited microfibre is the one called "mechanical splittable", made of polyester/polyamide, for example the one marketed by Far East Textile Ltd. under the name EASTLON SY1250SMS MICRO-SPLIT.
  • microfibre in this context fibres are intended with a count below 1 dtex or conjugated fibres, with count above
  • the mixed mass then undergoes a process by means of a carding machine/veil-forming machine 2, with subsequent possible pleating machine, to obtain a continuous processable veil, of a thickness from 6 to 8 cm and weight from 120 to 300 g/m 2 , depending on the thickness of the final product which it is intended to achieve .
  • the veil of fibres is preferably stretched by a gill box and then placed on a first needle-punching station 3, where it is needle-punched with techniques known per se.
  • a needle punching machine manufactured by Fehrer AG may be used.
  • Needle punching may also be carried out through one or more subsequent steps, for example carrying out also a pre-needle- punching .
  • a first mechanical interleaving between the fibres making up the veil takes place. Needle-punching is performed until a carpet of non-woven fabric is obtained of thickness 2.5-4.0 mm.
  • the fabric undergoes an interleaving treatment with water jets 4 (a so-called "spunlace” treatment) , which dignifies the non-woven, needle-punched fabric.
  • a so-called "spunlace” treatment a so-called "spunlace” treatment
  • the Applicant has detected that this stage is very advantageous for the good outcome of the process with woollen fibres, because the number and solidity of the bonds between the fibres is increased.
  • the microfibres are divided (split) by the water jets and the ultrathin fibres thereby forming further bind the woollen fibres.
  • Water-jet interleaving hence allows to complete and dignify the non-woven, needle-punched fabric, making it more close-knit, uniform and soft, which result is critical to be able to obtain the desired product based on woollen fibres.
  • Water-jet interleaving is preferably carried out with a jet density of 12-18 per linear cm, preferably 16 per linear cm, at a pressure of 250-400 bar, preferably 150-250 bar, at a low advancement speed .
  • Needle-punching allows to provide a first compaction and intersecting of the mixed woollen/synthetic fibres, also starting from a veil of a significant width (for example above 8 cm) .
  • This allows to obtain a substrate suitable to make the subsequent water-jet interleaving effective - which would otherwise be unable to interact with the deeper fibres - which imparts desired characteristics of handle, feel, porosity and cohesion.
  • It is thereby possible to obtain soft and close- knit fabrics, starting from a veil of a thickness even above 8 cm, without nevertheless excessively forcing the needle-punching process which would inevitably lead to a felt-type product.
  • the non-woven fabric based on natural wool has the characteristic pore fineness and hairiness as the "spunlace", as well as the good edge shear resistance. Due to the high cohesion obtainable through coupling the two treatments, the woollen, non-woven fabric also has a high resistance to tearing and withstands multiple washing cycles. Moreover, precisely in the light of these qualities, the non-woven fabric of the invention can perfectly withstand a dying treatment even at the end of the process, which dying would instead be much more difficult to carry out on the raw material (i.e., upstream of the processing, directly on the fibres) . Also this last feature further extends the field of application of the product according to the invention.
  • the Applicant was able to ascertain that the woollen fabric obtained through the process and the plant of the inventions surprisingly has features never obtained so far by using needle- punching processes only or of water-jet interleaving only.
  • the number of and variety of applications which this original woollen fabric meets are remarkable, also thanks to the characteristics of the woollen fibre itself, such as the fire- retarding and insulating character.
  • the non-woven fabric manufactured according to the invention may find application ' in the field of blankets or insulating panels, in lining materials and tapestry (including the automotive industry) - also as a replacement of foams, provided it is manufactured with a suitable thickness/volume - in filters, both dry ones and wet ones, in the field of cleaning cloths (wherein it develops a polishing effect, thanks to the wool component) , in the clothing industry and other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Woven Fabrics (AREA)

Abstract

A plant and method for manufacturing a wool -based, non- woven fabric is disclosed, wherein the steps are carried out of providing flocks based on natural wool fibres, of carrying out a carding and veiling of said flocks based on wool fibres, up until obtaining a veil based on wool fibres, and of carrying out needle -punching on said veil based on wool fibres, wherein at the end of the needle -punching a water- jet interleaving step is also carried out. Some products which may advantageously be obtained through such method and plant are also disclosed.

Description

"METHOD FOR MANUFACTURING A NON-WOVEN FABRIC BASED ON NATURAL WOOL, PLANT FOR APPLYING SUCH METHOD, AND PRODUCT OBTAINED BY SUCH. METHOD"
* § * § * § * The present invention concerns a method and a plant for the manufacture of a non-woven fabric, in particular a non-woven fabric based on natural wool, as well as the product obtained by- such method.
As known, a non-woven fabric is a substantially bi- dimensional, semi-processed product, which is obtained by- assembling a plurality of natural or synthetic fibres of a certain length. From this point of view, it is radically different from a classic woven fabric, which is instead put together starting from yarns of indefinite length and using weaving machines which accomplish a classic weft-warp configuration .
In order to consolidate a plurality of fibres in a fabric, various techniques exist, which substantially aim at interleaving in a mutually stable way the fibres - both through a purely mechanical action, and with the help of binding agents
- so as to prevent the product from coming undone with use.
In the industrial field various synthetic fibres have been developed and manufactured which are particularly suitable for the composition of non-woven fabrics . Conversely, there are some natural fibres which instead are very unsuitable for this processing, having a natural tendency not to interleave or to loosen the bonds thereof over time and with use.
With such respect, so far it has not been possible to detect any processing which allows to obtain a good non-woven fabric with natural wool fibres.
In some cases it was possible to obtain a processable woollen support using needle punching, machines.
A needle punching machine is a work station equipped with one or more pairs of arrays of opposite needles (having specific arrangements) , which are interpenetrated and alternately moved apart, while a veil of fibres to be processed is made to move between the same,- when the two opposite arrays of needles are repeatedly moved closer and further apart, causing the needles to interpenetrate, the interposed fibres are "needle punched", i.e. they interleave and mechanically connect with one another: this allows to impart a certain cohesion to the veil of fibres. The consistence and the physical properties of the natural wool fibres, however, are such that the needle punching process may work - i.e. it may supply a stable non-woven fabric - only in specific conditions, i.e. when the veil of raw material is of an adequate basic weight and when the needles are arranged diagonally and/or characterised by the presence of special hooks .
In these conditions, with natural wool fibres it is nevertheless possible to form only a sort of felt, i.e. a rather thick, rigid product, with an unpleasant handle and unpleasant to the touch, as well as having a limited number of applications .
The need is instead felt for a better-quality non-woven fabric based on natural wool fibres, since it potentially serves for a number of advantageous applications, also due to the inherent insulating and fire retarding properties of these fibres .
In particular, it would be desirable to be able to obtain such a non-woven fabric having sufficient resistance to mechanical stress (tearing, cutting, and so on) and maintaining good cohesion with use, also to be able to dye it with conventional finishing treatments.
The object of the present invention is hence that of providing a plant and relative treatment method for obtaining non-woven fabrics based on natural wool. A further object of the invention is to provide a product of non-woven fabric based on natural wool which is soft, with a good handle, resistant (also to dying treatments) and suited to a number of applications.
Such objects are achieved through a method, an apparatus and a product as described in their essential features in the accompanying claims .
Further features and advantages of the device according to the invention will in any case be more evident from the following detailed description of a preferred embodiment of the same, given by way of example and illustrated in the accompanying drawings, wherein: fig. 1 is a schematic view illustrating an exemplifying plant of the invention; fig. 2 is an elevation side view of an exemplifying plant of the invention; fig. 3 is a section view of an exemplifying plate of needles of the needle punching machine employed in the invention; fig. 4 is an elevation view of a needle of the plate of fig. 3; fig. 5 is a schematic view of an enlarged detail of the water jet station shown in fig. 2; figs. 6A and 6B are microscope pictures, with 4X lens, 40X eyepiece, 128X video enlargement and 1OX lens, IOOX eyepiece, 320X video enlargement, respectively, of the fabric according to the invention after needle punching; figs . 7A and 7B are pictures as in figs . 6A and 6B of the non-woven fabric after treatments with water jets,- and figs. 8A and 8B are pictures as in figs. 6A and 6B of the non-woven fabric after a dying treatment.
The manufacturing process provides to start from processed wool, in a manner known per se, so as to have flocks of sufficient volume and uniformity. This first treatment may be performed for example with any known-type mechanical process.
According to the invention, the wool flocks are then mixed with variously-sized flocks of synthetic fibres, such as fibres of polyester, polyamide, viscose, acrylic, Bamboo, PLA and preferably microfibre, in an amount ranging from 20 to 50% by weight, better about 30%. From tests carried out by the Applicant, it has been detected that microfibre flocks are particularly preferred, which impart excellent mechanical and physical qualities to the final woollen fabric,- a particularly suited microfibre is the one called "mechanical splittable", made of polyester/polyamide, for example the one marketed by Far East Textile Ltd. under the name EASTLON SY1250SMS MICRO-SPLIT. By the term microfibre in this context fibres are intended with a count below 1 dtex or conjugated fibres, with count above
1 dtex, splittable into ultrafine or super ultrafine segments
(with count of 0.09-0.13 dtex) through solvents, alkali or mechanical action (high-pressure water jets) .
These "splittable" microfibres have the feature of splitting into many very fine (below 1 den) fibres when they undergo a mechanical impact, which produces an advantageous effect which will be illustrated in the following. The mixing of the wool flocks with the synthetic fibre flocks must be carried out until a uniform base product is achieved; mixing can be carried out, for example, in a carding willow and mixing box for a time of about 3-4 hours depending on the amount of fibres to be mixed. The mixed mass then undergoes a process by means of a carding machine/veil-forming machine 2, with subsequent possible pleating machine, to obtain a continuous processable veil, of a thickness from 6 to 8 cm and weight from 120 to 300 g/m2, depending on the thickness of the final product which it is intended to achieve .
At the exit of veil-forming machine 2 and of the possible pleating machine, the veil of fibres is preferably stretched by a gill box and then placed on a first needle-punching station 3, where it is needle-punched with techniques known per se. For example, a needle punching machine manufactured by Fehrer AG may be used.
Needle punching may also be carried out through one or more subsequent steps, for example carrying out also a pre-needle- punching . In this process a first mechanical interleaving between the fibres making up the veil takes place. Needle-punching is performed until a carpet of non-woven fabric is obtained of thickness 2.5-4.0 mm.
The presence of synthetic fibres, in particular of microfibre, aids a good result already at this stage.
Moreover, according to the invention, at the exit from needle punching machine 3 the fabric undergoes an interleaving treatment with water jets 4 (a so-called "spunlace" treatment) , which dignifies the non-woven, needle-punched fabric. In particular, the Applicant has detected that this stage is very advantageous for the good outcome of the process with woollen fibres, because the number and solidity of the bonds between the fibres is increased. During this last treatment, the microfibres are divided (split) by the water jets and the ultrathin fibres thereby forming further bind the woollen fibres.
Water-jet interleaving hence allows to complete and dignify the non-woven, needle-punched fabric, making it more close-knit, uniform and soft, which result is critical to be able to obtain the desired product based on woollen fibres.
Water-jet interleaving is preferably carried out with a jet density of 12-18 per linear cm, preferably 16 per linear cm, at a pressure of 250-400 bar, preferably 150-250 bar, at a low advancement speed .
This allows to obtain a density between 150 and 180 gr/dm3 and a thickness between 0.8 and 1.6 mm.
Thanks to this combination of needle-punching and water-jet interleaving, as well as to the presence of synthetic fibres, it is hence possible to obtain a wool-based, non-woven fabric having excellent mechanical and physical qualities.
Needle-punching, in particular, allows to provide a first compaction and intersecting of the mixed woollen/synthetic fibres, also starting from a veil of a significant width (for example above 8 cm) . This allows to obtain a substrate suitable to make the subsequent water-jet interleaving effective - which would otherwise be unable to interact with the deeper fibres - which imparts desired characteristics of handle, feel, porosity and cohesion. It is thereby possible to obtain soft and close- knit fabrics, starting from a veil of a thickness even above 8 cm, without nevertheless excessively forcing the needle-punching process which would inevitably lead to a felt-type product.
Thanks to the final treatment with water-jet interleaving, the non-woven fabric based on natural wool has the characteristic pore fineness and hairiness as the "spunlace", as well as the good edge shear resistance. Due to the high cohesion obtainable through coupling the two treatments, the woollen, non-woven fabric also has a high resistance to tearing and withstands multiple washing cycles. Moreover, precisely in the light of these qualities, the non-woven fabric of the invention can perfectly withstand a dying treatment even at the end of the process, which dying would instead be much more difficult to carry out on the raw material (i.e., upstream of the processing, directly on the fibres) . Also this last feature further extends the field of application of the product according to the invention.
The Applicant was able to ascertain that the woollen fabric obtained through the process and the plant of the inventions surprisingly has features never obtained so far by using needle- punching processes only or of water-jet interleaving only. The number of and variety of applications which this original woollen fabric meets are remarkable, also thanks to the characteristics of the woollen fibre itself, such as the fire- retarding and insulating character.
In particular, it has been detected that the non-woven fabric manufactured according to the invention may find application' in the field of blankets or insulating panels, in lining materials and tapestry (including the automotive industry) - also as a replacement of foams, provided it is manufactured with a suitable thickness/volume - in filters, both dry ones and wet ones, in the field of cleaning cloths (wherein it develops a polishing effect, thanks to the wool component) , in the clothing industry and other.
However, it is intended that the invention is not limited to the particular configurations illustrated above, which represent only non-limiting examples of the scope of the invention, but that a number of variants are possible, all within the reach of a person skilled in the field, without departing from the scope of the invention.

Claims

1) Plant for manufacturing non-woven fabric based on natural woollen fibres in flocks, characterised in that it comprises in succession at least one needle-punching station and one water-jet interleaving station.
2) Plant as claimed in claim 1) , wherein upstream of the needle-punching station there is furthermore prearranged a carding and veil-forming station.
3) Plant as claimed in claim 1) or 2) , wherein there is further provided, upstream of the needle-punching station, a flock-mixing station, capable of mixing wool fibre flocks with synthetic fibre flocks in an amount from 20 to 50% by weight.
4) Manufacturing method of a wool-based, non-woven fabric, comprising the steps of - providing flocks based on natural wool fibres,
- carrying out carding and veiling of said flocks based on wool fibres, up until obtaining a veil based on wool fibres,
- performing needle-punching on said veil based on wool fibres to obtain a needle-punched carpet, characterised in that at the end of the needle punching the following step is also carried out
- water-jet interleaving of said needle-punched carpet.
5) Manufacturing method as claimed in claim 4) , wherein before said carding and veiling, said flocks based on wool fibres are mixed with flocks of synthetic fibres to an amount of 20-50% by weight.
6) Manufacturing method as claimed in claim 5) , wherein said flocks of synthetic fibres are flocks of splittable microfibres . 7) Manufacturing method as claimed in claim 4) , 5) or 6) , wherein said wool-based veil has a thickness above 8 cm.
8) Wool-based, non-woven fabric, characterised in that it is obtained through a method as claimed in any one of claims 4) to 7) . 9) Insulating blanket, characterised in that it consists of a non-woven fabric as claimed in claim 8) .
10) Fabric for lining, characterised in that it consists of a non-woven fabric as claimed in claim 8) .
11) Clothing component, characterised in that it consists of at least in part of a non-woven fabric as claimed in claim
EP20070825957 2006-07-27 2007-07-24 Method for manufacturing a non-woven fabric based on natural wool, plant for performing such method and product obtained by such method Withdrawn EP2049719A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT001484A ITMI20061484A1 (en) 2006-07-27 2006-07-27 METHOD OF MANUFACTURE OF A NON-WOVEN FABRIC BASED ON NATURAL WOOL, PLANT FOR SUCH PROCESS AND PRODUCT OBTAINED BY IT
PCT/IB2007/052930 WO2008029307A2 (en) 2006-07-27 2007-07-24 Method for manufacturing a non-woven fabric based on natural wool, plant for performing such method and product obtained by such method

Publications (1)

Publication Number Publication Date
EP2049719A2 true EP2049719A2 (en) 2009-04-22

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Country Status (5)

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US (1) US20090305593A1 (en)
EP (1) EP2049719A2 (en)
JP (1) JP2009544862A (en)
IT (1) ITMI20061484A1 (en)
WO (1) WO2008029307A2 (en)

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IT1397534B1 (en) * 2010-01-21 2013-01-16 Maranghi PROCESS TO PREPARE A NON-WOVEN FABRIC WITH A SURFACE COVERED WITH A MICROFIBER AND FABRIC OBTAINABLE WITH SUCH PROCESS.
US9731436B2 (en) * 2014-09-22 2017-08-15 Mary Anderle Blended fiber pad
EP3216433B1 (en) * 2016-03-08 2018-11-21 The Procter and Gamble Company Carded nonwoven fibrous web and use in absorbent articles
CN109537354A (en) * 2018-11-28 2019-03-29 山东昌诺新材料科技有限公司 A kind of bamboo fibre and wood pulp spun lacing composite cleaning cloth and preparation method thereof
CN112831912B (en) * 2021-02-05 2023-10-03 刘超 Production line of ultrathin coconut palm fiber flat pad and manufacturing method of coconut fiber flat pad

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ITMI20061484A1 (en) 2008-01-28

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