EP1420097A1 - Mikrofaservliesstoffe, deren Komplexe und Herstellungsverfahren - Google Patents

Mikrofaservliesstoffe, deren Komplexe und Herstellungsverfahren Download PDF

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Publication number
EP1420097A1
EP1420097A1 EP03292546A EP03292546A EP1420097A1 EP 1420097 A1 EP1420097 A1 EP 1420097A1 EP 03292546 A EP03292546 A EP 03292546A EP 03292546 A EP03292546 A EP 03292546A EP 1420097 A1 EP1420097 A1 EP 1420097A1
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EP
European Patent Office
Prior art keywords
microfibers
fibers
thermobonding
nonwoven
veil
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Withdrawn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
EP03292546A
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English (en)
French (fr)
Inventor
Michel Pierre
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.)
Financiere Elysees Balzac SA
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Financiere Elysees Balzac SA
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Publication date
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Publication of EP1420097A1 publication Critical patent/EP1420097A1/de
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    • 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
    • D04H1/4382—Stretched reticular film fibres; Composite fibres; Mixed fibres; Ultrafine fibres; Fibres for artificial leather
    • D04H1/43838—Ultrafine fibres, e.g. microfibres
    • 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
    • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/542—Adhesive 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
    • D04H1/425—Cellulose series
    • 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
    • D04H1/4391—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 characterised by the shape of the fibres
    • D04H1/43912—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 characterised by the shape of the fibres fibres with noncircular cross-sections
    • 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
    • D04H1/44—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
    • D04H1/48—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 in combination with at least one other method of consolidation
    • 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
    • D04H1/48—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 in combination with at least one other method of consolidation
    • D04H1/49—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 in combination with at least one other method of consolidation entanglement by fluid jet in combination with another consolidation means
    • 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
    • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
    • 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
    • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/541—Composite fibres, e.g. sheath-core, sea-island or side-by-side; Mixed fibres
    • D04H1/5418—Mixed fibres, e.g. at least two chemically different fibres or fibre blends
    • 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
    • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/542—Adhesive fibres
    • D04H1/544—Olefin series
    • 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
    • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/542—Adhesive fibres
    • D04H1/549—Polyamides
    • 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
    • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/542—Adhesive fibres
    • D04H1/55—Polyesters
    • 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
    • D04H1/54—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 by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/555—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 by welding together the fibres, e.g. by partially melting or dissolving by ultrasonic heating
    • 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
    • D04H1/58—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 by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives
    • 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)
    • 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
    • D04H13/00—Other non-woven fabrics

Definitions

  • the nonwovens of the invention are particularly effective for degrease surfaces. They exhibit an interesting compromise of properties, especially in terms of mechanical resistance, flexibility, softness touch and mass volume.
  • the raw material used consists only of the microfibers precursor and the material hot melt is generated from it.
  • microfibrous nonwovens are prepared from veils of crimped cut fibers, multicomponents, burst in microfibers by hydraulic means. Tablecloths, made up of several of these veils, are thus generally subjected to the action of water jets, which, while bursting the multicomponent fibers in microfibers, bind them by interlacing.
  • the microfibrous nonwoven obtained is, or not, post-linked. It can thus be coated with a hydrophilic latex and / or embossed in a thermocalandre.
  • the process in question based on the action of the water jets, does not make it possible to obtain sheets of low grammage, in particular of a grammage lower than 30 g / m 2 . Indeed, the water jets destroy such layers, by a blast effect.
  • the nonwovens of the invention are shortwoven nonwovens, the fibrous structure of which contains a majority in number of microfibers as well as zones of molten thermobonding. In this they can be considered as nonwovens of the type of those of the prior art.
  • the microfibers of the nonwovens of the invention are material (s) different from that (s) of the melted material thermobonding, which has a higher melting temperature (s) and they are located at the limit of said zones of molten material of thermobonding, grouped in bundles.
  • At least a fraction of the microfibers present very advantageously all the microfibers present, have an oblong section, that is to say of an elongated shape.
  • Said section may in particular be oval, flat, triangular or trapezoidal. She actually has one of its dimensions at least 1.5 times larger than the other. The presence of this type of fiber optimizes wiping performance nonwovens of the invention.
  • Microfibers involved in the fibrous structure of nonwovens of the invention may be of any material, in particular polyester, polyamide, polyethyleneterephthalate ...
  • microfibers in issue are conventional microfibers whose title is less than 1 dtex, advantageously less than 0.6 dtex.
  • the molten thermobonding material is in one (of), advantageously one, material (s) compatible with the material (s) constituting the microfibers.
  • the compatible adjective is used here with reference to the points of fusion of the materials in question.
  • Said melt may in particular consist of polypropylene. It has already been indicated that said polypropylene advantageously binds polyester microfibers together and polyamide.
  • the fibrous structure nonwovens of the invention contain cellulosic fibers.
  • the nonwovens of the invention can be obtained, having a high or low grammage. They generally have a grammage of between 5 and 600 g / m 2 . They can in particular be obtained at a grammage less than 30 g / m 2 . We have seen that the conventional hydraulic system of the prior art did not make it possible to obtain nonwovens of such a low grammage.
  • the present invention relates to complex, whose structure, at least two-component, includes at least one nonwoven of the invention.
  • Said complexes can in particular be obtained by either of the methods specified below. They can also be obtained by any other method of joining at least one nonwoven to at minus another structure and in particular by sewing, gluing ...
  • Said veil (said sheet) is thermally bonded before being treated for generate microfibers within it.
  • Thermobonding involves at least part of the hot-melt material, provided for this purpose. It does not consume microfibers precursor material. Said material is not altered by said thermobonding.
  • hot melt in question is susceptible to intervene in the form of powder and / or hot-melt fibers.
  • thermobonding can in particular be implemented by passing the veil (of the tablecloth) in an oven or on heating drums. He can too be implemented by treating said veil (of said web) in a thermocalandre, smooth or patterned, or in an ultrasonic calender. These various thermobonding techniques are familiar to those skilled in the art.
  • the veil or the tablecloth in question is likely to contain other fibers than said precursor fibers of microfibers and any thermobonding fibers, especially fibers cellulose. It is also not excluded that said veil or said tablecloth contains microfibers. These microfibers, initially present, are added, in the final microfibrous structure of the nonwovens of the invention, microfibers generated from the precursor fibers of microfibers.
  • the second stage of the process - the stage of treatment, of generation microfibers from precursors - is not per se original. His bet in use is obviously adapted to the nature of the precursor fibers of microfibers involved. It is actually usually a treatment thermal, chemical or mechanical.
  • a mechanical treatment in particular of the hydraulic needling type, mechanical needling, sanding, "woolening", hammering; we prefer everything particularly the implementation of a mechanical treatment of the type hydraulic needling.
  • thermobonding characterized by the order in which its two main stages are implemented [1) thermobonding, 2) generation microfibers] can be completed. It can in particular include, in addition of said two steps, a complementary tying step (a post-tying step) and / or an impregnation step so as to strengthen the power dusting the nonwoven obtained.
  • a complementary tying step a post-tying step
  • an impregnation step so as to strengthen the power dusting the nonwoven obtained.
  • a microfibrous nonwoven of the invention is associated with a veil or a sheet of microfibers, previously constituted or not.
  • Whatever the exact variant of implementation processing work aimed at generating microfibers from fibers microfibers precursors, advantageously takes advantage of said treatment to link together the microfibers generated. This bond is more or less strong and may or may not be associated with complementary bindings, of the conventional type.
  • the steps, prior to thermobonding, then of treatment as indicated in upstream.
  • the preparation of said complexes can likewise be supplemented by a final complementary binding step and / or a step impregnation.
  • FIGS. 1A, 1B, 1C the method of the invention has been illustrated.
  • FIGS. 2A and 2B the method of the prior art has been illustrated.
  • thermobonding zones In said zones 3, said fibers 1 and 2 are joined together, said fibers 1 not having been affected.
  • the fibers 1 are split into microfibers 1a and 2b. Said microfibers 1a and 1b are grouped in bundles at the limit of the thermobonding zones 3.
  • microfibers 1'a and 1'b were generated, prior to the implementation of thermobonding ( Figure 2A). AT after said thermobonding ( Figure 2B), they are secured to the fiber 2 ' melt. They are thus, individually, secured to said fiber 2 '.
  • the present invention is finally illustrated and positioned by compared to its closest prior art, in the examples below.
  • the surface mass G is the mass of the conditioned sample M divided by its area S according to Edana 40.3-90 or ISO 9073-1.
  • the thickness is measured by a probe of 25 cm 2 in diameter according to the Edana ERT 30.5-99 or ISO 9073-2 standard but under a pressure of 0.5 kPa.
  • the number of microfibers is evaluated by observation of photos of photograph taken under a scanning electron microscope. Fibers, including mean diameter is less than 10 ⁇ m, are considered to be microfibers of less than 1 dtex.
  • the counting consists in drawing one or more several lines on the photograph, counting the number of fibers it (s) cut (s) and count among them those which are microfibers.
  • Differential thermal analysis differentiates points polyester and co-polyesters. From their enthalpies of merger, the weight content can be determined.
  • the bending moment MF expressed in cg.cm of a test piece of 50 x 250 mm is determined according to Edana standard 50.2-80 (Bending length).
  • the breaking length or resistance per kilometer is determined in perpendicular directions of the sample (S1 and S2) corresponding to the forward and cross directions of the sample by measuring the grammage G (g / m 2 ) of the test pieces - Edana 40 standard -3-90 or ISO 9073-1: 1989 - then their breaking strengths in both directions, the average of which is Fr (daN / cm) - Edana standard 20.2-89-.
  • Example 1 thermobonding on a grille then bursting with soda or by water jets
  • the thermally bonded nonwovens obtained (TB 23 and TB 51) have a grammage of 23 and 51 g / m 2 respectively . Their properties have been measured and are indicated in the tables below, respectively table 1A, column TB 23 and table 1B, column TB 51.
  • the nonwovens of the invention are at least as strong as the nonwovens of the prior art (exploded then thermally bonded).
  • the process of the invention makes it possible, in a particularly advantageous manner, to burst very light thermally bonded nonwovens (TB-23 of 23 g / m 2 ), insofar as they have, before (bursting), been reinforced by thermobonding.
  • Bursting by hydraulic needling is currently revealed more efficient than chemical bursting: oil retention of nonwovens TB-J and TB-J 'are higher than those of the nonwovens TB-S and TB-S'.
  • Hydraulic needling which allows fibers to burst of the thermally bonded nonwoven ensures post-binding while retaining the absorption properties of the nonwoven in question: oil absorption (in% mass) is practically equal to the mass or bulk volume of the nonwoven, which shows that bursting (hydraulic needling) is not effect of increasing the bulk of the nonwoven of thermo-bonded carded fibers.
  • the nonwovens of the invention TB-S 'and TB-J' are both stronger and more flexible (less rigid) than thermobonded nonwoven, TB 51, from from which they are obtained.
  • Example 2 thermobonding on a radiator grille then bursting with soda
  • T-510 fibers into 16 microfibers of 0.21 dtex approximately is achieved by immersion in soda at 20 g / l at 90 ° C for 1 hour 30 min.
  • a nonwoven of the invention is then obtained, referenced TB-S.
  • the enumeration of microfibers within it is carried out by counting on photography.
  • the microfibers rate is more than 80%, even 90%.
  • the properties of said TB-S nonwoven have been measured and are indicated in the table 2 below.
  • the microfibrous nonwoven of the invention (TB-S) is particularly wiping (oil wiping score of 5). Its high oil retention (from 57% for 33% before bursting) shows the presence of microfibers.
  • said TB-S nonwoven is more resistant and less rigid than the non-woven fabric of the prior art S-TB.
  • the bursting of the fibers within the TB 102 nonwoven does not modify significantly its structure because the bulk (TB-S / TB 102) is not significantly changed.
  • Example 3 thermobonding on drum then bursting with soda.
  • Said sails are covered with 12 plies and needled 1300 strokes / min.
  • the sheet obtained is then thermobonded on cylinders heated to 180 ° C.
  • the thermally bonded nonwoven obtained TB 150 has a grammage of 150 g / m 2 . It is exploded chemically in a sodium hydroxide solution (as specified in Example 1).
  • thermally bonded nonwoven, TB 150 and of said exploded thermally bonded nonwoven TB-S were measured and are shown in Table 3 below.
  • the burst essentially modifies the usage properties of the nonwoven : it becomes more wiping (its oil retention increases significantly).
  • the skeleton of the nonwoven, before and after bursting, remains unchanged because the volume parameters (bulk, absorption) do not hardly vary.
  • Nonwovens which do not contain fibers viscose, have very high water absorption times: they do not get wet not.
  • Each set is bound and split by hydraulic needling at 80 then 120 bars on each side.
  • thermo-bonded veil of each complex constitutes a nonwoven thermally bonded support, which facilitates passage under high-pressure water jets pressure (which tend, by their breath, to destroy a veil of carding, not linked).
  • Non-woven complexes of 47 (C1) and 72 g / m 2 (C2) containing on average 38% by mass of microfibers, 24% by mass of polypropylene and 38% by mass of viscose, are thus produced industrially.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like (AREA)
EP03292546A 2002-10-15 2003-10-14 Mikrofaservliesstoffe, deren Komplexe und Herstellungsverfahren Withdrawn EP1420097A1 (de)

Applications Claiming Priority (2)

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FR0212807A FR2845696B1 (fr) 2002-10-15 2002-10-15 Non-tisses microfibreux, complexes les incorporant, preparations
FR0212807 2002-10-15

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010047639A2 (en) * 2008-10-23 2010-04-29 Vikan Ab Disposable mop
ITMI20120960A1 (it) * 2012-06-04 2013-12-05 Di Co T Srl Foglietto non-tessuto per catturare i colori
CN106192207A (zh) * 2016-07-29 2016-12-07 河南工程学院 一种环保纤维絮片及其制造方法

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2434224A1 (fr) * 1978-08-21 1980-03-21 Minnesota Mining & Mfg Balai d'essuyage comportant un tissu non tisse gaufre comme element de nettoyage
EP0205242A2 (de) * 1985-05-14 1986-12-17 Kimberly-Clark Corporation Mehrschichtiges nichtgewobenes Material
JPH03152255A (ja) * 1989-11-04 1991-06-28 Japan Vilene Co Ltd 不織布クリーニング材及びその製造方法
JPH06101148A (ja) * 1992-09-18 1994-04-12 Mitsubishi Rayon Co Ltd 清掃用不織布
JPH06158498A (ja) * 1992-11-06 1994-06-07 Teijin Ltd 不織布の製造方法
JPH08246313A (ja) * 1995-03-14 1996-09-24 Kasai Kogyo Co Ltd 熱成形用嵩高性不織布
JPH08260316A (ja) * 1995-03-16 1996-10-08 Japan Vilene Co Ltd 不織布及びこの製造方法
EP0834938A2 (de) * 1996-09-27 1998-04-08 Japan Vilene Company, Ltd. Alkalische Batterieseparator und Verfahren zur Herstellung
WO1998023804A1 (en) * 1996-11-26 1998-06-04 Kimberly-Clark Worldwide, Inc. Entangled nonwoven fabrics and methods for forming the same
EP1045059A1 (de) * 1999-04-16 2000-10-18 Firma Carl Freudenberg Reinigungstuch

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2434224A1 (fr) * 1978-08-21 1980-03-21 Minnesota Mining & Mfg Balai d'essuyage comportant un tissu non tisse gaufre comme element de nettoyage
EP0205242A2 (de) * 1985-05-14 1986-12-17 Kimberly-Clark Corporation Mehrschichtiges nichtgewobenes Material
JPH03152255A (ja) * 1989-11-04 1991-06-28 Japan Vilene Co Ltd 不織布クリーニング材及びその製造方法
JPH06101148A (ja) * 1992-09-18 1994-04-12 Mitsubishi Rayon Co Ltd 清掃用不織布
JPH06158498A (ja) * 1992-11-06 1994-06-07 Teijin Ltd 不織布の製造方法
JPH08246313A (ja) * 1995-03-14 1996-09-24 Kasai Kogyo Co Ltd 熱成形用嵩高性不織布
JPH08260316A (ja) * 1995-03-16 1996-10-08 Japan Vilene Co Ltd 不織布及びこの製造方法
EP0834938A2 (de) * 1996-09-27 1998-04-08 Japan Vilene Company, Ltd. Alkalische Batterieseparator und Verfahren zur Herstellung
WO1998023804A1 (en) * 1996-11-26 1998-06-04 Kimberly-Clark Worldwide, Inc. Entangled nonwoven fabrics and methods for forming the same
US20010037850A1 (en) * 1996-11-26 2001-11-08 Marmon Samuel Edward Entangled nonwoven fabrics and methods for forming the same
EP1045059A1 (de) * 1999-04-16 2000-10-18 Firma Carl Freudenberg Reinigungstuch

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 199419, Derwent World Patents Index; Class A23, AN 1994-157101, XP002248752 *
PATENT ABSTRACTS OF JAPAN vol. 0153, no. 77 (C - 0870) 24 September 1991 (1991-09-24) *
PATENT ABSTRACTS OF JAPAN vol. 0184, no. 90 (C - 1249) 13 September 1994 (1994-09-13) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 01 31 January 1997 (1997-01-31) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 02 28 February 1997 (1997-02-28) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010047639A2 (en) * 2008-10-23 2010-04-29 Vikan Ab Disposable mop
WO2010047639A3 (en) * 2008-10-23 2010-06-10 Vikan Ab Disposable mop
ITMI20120960A1 (it) * 2012-06-04 2013-12-05 Di Co T Srl Foglietto non-tessuto per catturare i colori
CN106192207A (zh) * 2016-07-29 2016-12-07 河南工程学院 一种环保纤维絮片及其制造方法

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