WO2012163317A1 - Procédé de fabrication d'un composite et composite - Google Patents

Procédé de fabrication d'un composite et composite Download PDF

Info

Publication number
WO2012163317A1
WO2012163317A1 PCT/DE2012/000422 DE2012000422W WO2012163317A1 WO 2012163317 A1 WO2012163317 A1 WO 2012163317A1 DE 2012000422 W DE2012000422 W DE 2012000422W WO 2012163317 A1 WO2012163317 A1 WO 2012163317A1
Authority
WO
WIPO (PCT)
Prior art keywords
composite
layer
fibers
fleece
nonwoven
Prior art date
Application number
PCT/DE2012/000422
Other languages
German (de)
English (en)
Inventor
Tarek Fahmy
Marko FLECK
Original Assignee
Ascania Nonwoven Germany Gmbh
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 Ascania Nonwoven Germany Gmbh filed Critical Ascania Nonwoven Germany Gmbh
Publication of WO2012163317A1 publication Critical patent/WO2012163317A1/fr

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
    • D04H1/42—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
    • D04H1/54—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
    • D04H1/559—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 the fibres being within layered webs

Definitions

  • the invention relates to a method for producing a composite according to the preamble of claim 1 and to a composite according to the preamble of claim 6.
  • Wipes and absorbent hygiene products for example
  • these hygiene products usually, as absorbent material, these hygiene products also use paper whose cellulose fibers have a high water absorption capacity. Disadvantage of the paper but is the low wet tensile strength.
  • wet-strength thin nonwoven fabrics of, for example, 10 to 20 g / m 2 , prepared from polypropylene or polyester fibers, are placed on the paper, and then an intimate connection of the layers by a
  • Patent EP 1 961 850 B1 discloses how fluff pulp is deposited in a layer on a preproduced nonwoven, namely on a carrier fleece, by means of an air laying process, the so-called airlaid process. Subsequently, another fleece, namely a
  • Pore size is in this range. These are shares of up to 15% by weight, which are usually contained in the fluff pulp raw material.
  • Baby wipe is inserted.
  • Meltblown layer consists of polypropylene fine fibers of 1 [in diameter and lowers the pore size of the nonwoven.
  • the filter property of the nonwovens yield, since in the energy-intensive needling the water jets must be brought up to 300 bar and destroy the structure of fine fibers.
  • the present invention seeks to avoid the disadvantages of the aforementioned prior art and a simpler
  • the task is to feed the fluff pulp to the nonwovens in a drying process, but not to flocculate any cellulose fiber material in the subsequent solidification of the layers.
  • the invention consists in completely dispensing with a wet process during the consolidation of the layers, that is to say from the carrier fleece, fluff pulp layer and cover fleece, and instead a calendering of the layers takes place in which the layers are punctiform and do not overlap one another be welded.
  • the term "punctiform” is to be understood in the broadest sense and not only points as such but also similarly limited geometric shapes, especially stars, circles, crescents and / or the like, in particular aesthetically pleasing designs.
  • the carrier fleece and / or the cover fleece are prefabricated in an offline production.
  • the carrier fleece and / or the cover fleece are produced simultaneously with the fluff pulp layer in an inline production.
  • the fluff pulp layer has a relatively high weight of 20 to 300 g / m 2 , preferably of up to 100 g / m 2 , and if the carrier or Covering webs relatively low weights of only 6 to 80 g / m 2 , preferably of up to 40 g / m 2 , although the skilled person would expect that the composite easily delaminated.
  • heat or ultrasound according to the invention cause only a melting of the thermoplastic fibers of the two outer nonwovens.
  • thermoplastic fibers up to a minimum of only 6 g / m 2 is sufficient to enter into the embossing points an intimate connection with the non-sticky fluff pulp fibers, which was expected to have a release effect, leading to a slight delamination of the composite would result.
  • the inner fluff pulp layer still consists of individual non-entangled fibers and is only spot welded together
  • thermoplastic fibers are still unconsolidated or only slightly pre-consolidated.
  • the fibers used for the nonwoven layers preferably consist of polypropylene, polypropylene copolymers, polyethylene or mixtures thereof and / or of polyester. It may be advantageous if the aforementioned fibers are bicomponent fibers having an outer layer of one of said polymers or a mixture thereof and a core of another of said polymers or a mixture thereof.
  • nonwoven layers consist of continuous fibers and / or staple fibers with a length of 1, 5 to 6 cm.
  • thermoplastic raw materials from which the nonwoven fibers are obtained changed become.
  • the surface properties of carrier fleece and / or cover fleece and / or the composite can be changed by applying liquid preparations. It may be expedient if the nonwoven layers, so the cover and / or the carrier fleece, a basis weight of 6 to 80 g / m 2 , preferably from 8 to 40 g / m 2 , respectively.
  • each embossing point of the calender may be advantageous to make the size of the embossing points of the calender so that they account for 5 to 30% of the total area and / or that each embossing point has a length between 0.2 and 8 mm and a width between 0.2 and 8 mm.
  • the weight of the inner Fluffpulp layer between 20 and 200 g / m 2 is variable.
  • All commercially available fluff pulp types for example so-called chemical fluff pulp, thermomechanical fluff pulp, etc., can be used.
  • additives can be added to the fluff pulp layer, preferably in the form of fibers or powders.
  • the product properties can be advantageously modified in a predetermined manner.
  • superabsorbent powder and / or superabsorbent fibers may be added to the fluff pulp, which substantially increases the absorbency of the composite.
  • thermoplastic fibers and / or thermoplastic powders for example polyethylene powder
  • a weight ratio of thermoplastic powders and / or thermoplastic fibers to fluff pulp of 0.05: 1 to 1: 1 is used.
  • At least one nonwoven layer is formed as a thermoplastic, perforated film. It may be expedient if at least one nonwoven layer is formed as a water-repellent nonwoven, in particular as spunbonded in conjunction with meltblown ultrafine fibers or as SMS nonwoven.
  • the at least one nonwoven layer is formed as a water-impermeable, thermoplastic film.
  • Fig. 1 shows a cross section of a composite according to the invention in
  • FIG. 1 shows a composite 1 produced according to the invention, comprising a carrier fleece 2 made of a nonwoven layer of thermoplastic continuous and / or staple fibers, a cover fleece 3 made of a nonwoven layer of thermoplastic continuous and / or staple fibers and a layer arranged between carrier fleece 2 and cover fleece 3 4 of fluff pulp fibers, the layers 2, 3, 4 are punctiform interconnected by embossing points 8.
  • Fig. 2 shows a preferred embossing pattern in which 9.9% of the total area of the composite 1 is embossed and in which the individual embossing points 8 have a length of 2.5 mm and a width of 0.5 mm.
  • Fig. 3 shows schematically an in-line production line for producing a
  • thermoplastic raw material 9 is fed, with the addition of a masterbatch 6, to an extruder 10, which melts the mixture and presses it through a nozzle plate 11.
  • the hot filaments 19 are drawn with air from air nozzles 12, cooled and deposited as endless filaments on the conveyor belt 13.
  • Thermal calender 14 they are embossed to a nonwoven 2.
  • a liquid preparation 5 is applied by means of applicator rollers 26 and dried with a dryer 24.
  • the carrier fleece 2 is passed under an air layer 17 which deposits the fluff pulp layer 4 on the carrier fleece 2.
  • a liquid preparation 5 is applied by means of applicator rollers 26 and dried in a dryer 24.
  • the finished composite 1 is wound into rolls in a winder 25.
  • Fig. 4 shows schematically an offline production line for producing a
  • the carrier web 2 is unwound and placed on the conveyor belt 13.
  • the carrier fleece 2 is by means of applicator rollers 26 a liquid
  • Preparation 5 applied and dried with a dryer 24.
  • the carrier fleece 2 is passed under an air layer 17 which deposits the fluff pulp layer 4 on the carrier fleece 2.
  • fluff pulp rolls 15 are fibrillated in hammer mills16 into fluff pulp fibers 18. These fluff pulp fibers 18 are swirled in the air layer 17 and then emerge as a uniform fluff pulp layer 4.
  • Additives 7 are added to the fluff pulp fibers 18 directly in the air layer 17.
  • the Abdeckvlies 3 is now launched by unwinding the nonwoven roll 27.
  • the three superimposed layers 2, 4, 3 are in one Ultrasonic calender 23 spot welded together.
  • a liquid preparation 5 is applied by means of applicator rollers 26 and dried in a dryer 24.
  • the finished composite 1 is wound into rolls in a winder 25.

Landscapes

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

Abstract

L'invention concerne un procédé de fabrication d'un composite comprenant un support présentant une couche de non-tissé en fibres thermoplastiques discontinues et/ou sans fin, un non-tissé de couverture présentant une couche de non-tissé en fibres thermoplastiques discontinues et/ou sans fin, et une couche de fibres pelucheuses disposée entre le support et le non-tissé de couverture.
PCT/DE2012/000422 2011-05-30 2012-04-20 Procédé de fabrication d'un composite et composite WO2012163317A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201110103590 DE102011103590A1 (de) 2011-05-30 2011-05-30 Verfahren zur Herstellung eines Composits sowie Composit
DE102011103590.0 2011-05-30

Publications (1)

Publication Number Publication Date
WO2012163317A1 true WO2012163317A1 (fr) 2012-12-06

Family

ID=46148591

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2012/000422 WO2012163317A1 (fr) 2011-05-30 2012-04-20 Procédé de fabrication d'un composite et composite

Country Status (2)

Country Link
DE (1) DE102011103590A1 (fr)
WO (1) WO2012163317A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111279524A (zh) * 2017-10-30 2020-06-12 罗伯特·博世有限公司 用于制造电池组电池的电极单元的功能元件的方法和设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0492554A1 (fr) 1990-12-21 1992-07-01 Kimberly-Clark Corporation Etoffe non tissée composite avec une haute teneur en poudre de fibres, méthode de réalisation et utilisation
WO1994019179A1 (fr) * 1993-02-26 1994-09-01 The University Of Tennessee Research Corporation Nouveau voile composite
US6836937B1 (en) 1999-08-19 2005-01-04 Fleissner Gmbh & Co. Maschinenfabrik Method and device for producing a composite nonwoven for receiving and storing liquids
EP1961850B1 (fr) 2007-02-22 2009-10-28 ALBIS Spa Composite non tissé enchevêtré par voie hydraulique comprenant une couche par filage direct et une couche de pâte absorbante, procédé de production de ce composite

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0492554A1 (fr) 1990-12-21 1992-07-01 Kimberly-Clark Corporation Etoffe non tissée composite avec une haute teneur en poudre de fibres, méthode de réalisation et utilisation
WO1994019179A1 (fr) * 1993-02-26 1994-09-01 The University Of Tennessee Research Corporation Nouveau voile composite
US6836937B1 (en) 1999-08-19 2005-01-04 Fleissner Gmbh & Co. Maschinenfabrik Method and device for producing a composite nonwoven for receiving and storing liquids
EP1961850B1 (fr) 2007-02-22 2009-10-28 ALBIS Spa Composite non tissé enchevêtré par voie hydraulique comprenant une couche par filage direct et une couche de pâte absorbante, procédé de production de ce composite

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111279524A (zh) * 2017-10-30 2020-06-12 罗伯特·博世有限公司 用于制造电池组电池的电极单元的功能元件的方法和设备

Also Published As

Publication number Publication date
DE102011103590A1 (de) 2012-12-06

Similar Documents

Publication Publication Date Title
EP2503974B1 (fr) Structure absorbante
DE68913057T2 (de) Nichtgewebtes, faseriges, nichtelastisches Material und Verfahren zu dessen Herstellung.
DE69925846T2 (de) Vliessstoffe
DE69529768T2 (de) Verfahren und herstellung zur hydroverwirrung von vliesstoffen
EP1277865B1 (fr) Non-tissé tridimensionnel à motifs réguliers, son procédé de fabrication ainsi que ses applications
WO2015055177A1 (fr) Composite non-tissé volumineux et procédé de fabrication de celui-ci
EP1262587A1 (fr) Matériau multicouche et procédé de fabrication
EP1748101A2 (fr) Multi-couche fibreux volumineux et sa fabrication
EP0211131A2 (fr) Article textile absorbant non-tissé pour la médecine et l'hygiène et procédé pour sa fabrication
EP1964956B1 (fr) Support de tufting léger et très résistant et son procédé de fabrication
WO2017025271A1 (fr) Procédé de production d'un non tissé structuré constitué de microfilaments
DE10135111A1 (de) Komposit-Vliesstoff mit hoher Querfestigkeit, Verfahren zu dessen Herstellung und Verwendung
WO2017032778A1 (fr) Textile de nettoyage
DE102010047105A1 (de) Mehrschichtiges Verbundmaterial mit elastischen Eigenschaften
DE19927785C2 (de) Textiler Verbundstoff mit hoher textiler Weichheit und verbesserter Lagenhaftung
DE112014003037T5 (de) Vliesbahn mit verbesserter Schnittkantenqualitat und Verfahren zum Verleihen derselben
AT394216B (de) Verfahren zur herstellung von vernadelten spinnvliesen
EP3520758B1 (fr) Non-tissé de distribution et de réception de liquide pour articles d'hygiène
WO2012163317A1 (fr) Procédé de fabrication d'un composite et composite
EP3238680A1 (fr) Non-tissé de distribution et de réception de liquide pour article d'hygiène
DE102006000782A1 (de) Absorbierendes mehrlagiges Verbundvlies
DE8916164U1 (de) Nichtgewebtes, nichtelastisches Fasermaterial
DE19956926A1 (de) Textile Oberflächen auf Reissfaserbasis
DE102018000854B4 (de) Flüssigkeitsaufnahmevlies und -verteilervlies für Hygieneartikel
WO2016113054A1 (fr) Papier multicouche

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12723085

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 12723085

Country of ref document: EP

Kind code of ref document: A1