DE10233991A1 - Product and process for producing a nonwoven fabric by means of hydrodynamic needling - Google Patents

Product and process for producing a nonwoven fabric by means of hydrodynamic needling Download PDF

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Publication number
DE10233991A1
DE10233991A1 DE10233991A DE10233991A DE10233991A1 DE 10233991 A1 DE10233991 A1 DE 10233991A1 DE 10233991 A DE10233991 A DE 10233991A DE 10233991 A DE10233991 A DE 10233991A DE 10233991 A1 DE10233991 A1 DE 10233991A1
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Germany
Prior art keywords
fibers
layers
nonwoven
nonwoven fabric
producing
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Withdrawn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
DE10233991A
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German (de)
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.)
Truetzschler Nonwovens GmbH
Original Assignee
Fleissner 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 Fleissner GmbH filed Critical Fleissner GmbH
Priority to DE10233991A priority Critical patent/DE10233991A1/en
Priority to AT03762687T priority patent/ATE319561T1/en
Priority to EP20030762687 priority patent/EP1519833B1/en
Priority to ES03762687T priority patent/ES2260658T3/en
Priority to US10/520,083 priority patent/US7367093B2/en
Priority to PCT/EP2003/050267 priority patent/WO2004005019A1/en
Priority to DE50302622T priority patent/DE50302622D1/en
Publication of DE10233991A1 publication Critical patent/DE10233991A1/en
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/06—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/14—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor using multilayered preforms or sheets
    • B29C51/145—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor using multilayered preforms or sheets having at least one layer of textile or fibrous material combined with at least one plastics layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/02—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising combinations of reinforcements, e.g. non-specified reinforcements, fibrous reinforcing inserts and fillers, e.g. particulate fillers, incorporated in matrix material, forming one or more layers and with or without non-reinforced or non-filled layers
    • B29C70/021—Combinations of fibrous reinforcement and non-fibrous material
    • B29C70/025—Combinations of fibrous reinforcement and non-fibrous material with particular filler
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D29/00—Producing belts or bands
    • B29D29/06—Conveyor belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64G—COSMONAUTICS; VEHICLES OR EQUIPMENT THEREFOR
    • B64G1/00—Cosmonautic vehicles
    • B64G1/22—Parts of, or equipment specially adapted for fitting in or to, cosmonautic vehicles
    • B64G1/52—Protection, safety or emergency devices; Survival aids
    • B64G1/58—Thermal protection, e.g. heat shields
    • 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
    • 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
    • D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
    • D04H5/02—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling
    • D04H5/03—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling by fluid jet
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F7/00—Other details of machines for making continuous webs of paper
    • D21F7/08—Felts
    • D21F7/083—Multi-layer felts

Abstract

Das neue Produkt besteht aus hydrodynamisch verfestigten Vliesschichten, von denen mindestens vier Schichten übereinander gelegt werden und dann nur mit harten Wasserstrahlen miteinander verbunden werden.The new product consists of hydrodynamically bonded non-woven layers, of which at least four layers are placed on top of each other and then only connected with hard water jets.

Description

Durch die US-A-6 110 848 ist ein dreilagiges Sandwichvlies bekannt, dessen Außenschichten aus Stapelfasern einer Länge von 30 – 100 mm Länge bestehen und das in der Mitte ein Pulpvlies aufweist, das auch aus einem Gemisch aus und mit anderen Fasern wie Naturfasern oder Synthesefasern bestehen kann.Through the US-A-6 110 848 A three-layer sandwich fleece is known, the outer layers of which consist of staple fibers of a length of 30-100 mm in length and which has a pulp fleece in the middle, which can also consist of a mixture of and with other fibers such as natural fibers or synthetic fibers.

Der Erfindung liegt die Aufgabe zugrunde, ein Sandwichvlies zu bilden, das besondere Eigenschaften ermöglicht. So soll das Endprodukt z. B. einseitig stark flüssigkeitsaufnahmefähig sein, während die andere Oberfläche eher dicht oder für andere Flüssigkeiten zur Aufnahme besser geeignet sein soll, jedenfalls sich von der anderen Oberfläche in seinen Eigenschaften unterscheiden soll.The invention is based on the object To form sandwich fleece, which enables special properties. So the end product z. B. be highly absorbent on one side, while the other surface rather tight or for other liquids should be more suitable for inclusion, at least from the other surface differentiate in its properties.

Zur Lösung der Aufgabe ist vorgesehen, den Vliesstoff aus mindestens vier Schichten herzustellen, die zur Verfestigung des Vliesstoffes mittels der hydrodynamischen Vernadelung miteinander verbunden sind, wobei die beiden äußeren Schichten aus Vliesen aus kardierbaren Stapelfasern bis 100 mm Länge bzw. Spunbond-, Meltblownfasern oder anderen speziellen Fasern bestehen und die mindestens beiden von den Außenschichten abgedeckten Innenschichten aus unterschiedlichen Pulpfasern oder Pulpfasern mit anderen Fasern, wie Synthesefasern oder Naturfasern, bestehen bzw. anderen Fasern oder saugfähigen Substanzen, wie z. B. Superabsorber.To solve the problem, it is provided to manufacture the nonwoven fabric from at least four layers which are used for Solidification of the nonwoven by means of hydrodynamic needling are interconnected, the two outer layers of nonwovens from cardable staple fibers up to 100 mm in length or spunbond, meltblown fibers or other special fibers and the at least two from the outer layers covered inner layers made of different pulp fibers or Pulp fibers with other fibers, such as synthetic fibers or natural fibers, exist or other fibers or absorbent substances, such as. B. Superabsorbents.

Die Möglichkeit, die beiden inneren Schichten aus unterschiedlichen Fasern, die unterschiedliche Aufgaben, Eigenschaften haben, herzustellen, hat den Vorteil, dass ein solches Wischtuch, Hygieneprodukt oder dgl. auf den beiden Oberflächen unterschiedliche Aufgaben lösen kann. Die eine Seite kann z. B. mehr Flüssigkeit aufnehmen als die andere, dafür kann man aber mit dieser anderen Oberfläche besser reiben od. dgl. agieren. So kann die eine Innenschicht aus längern Pulpfasern bis zu 30 mm Länge bestehen, während die andere Schicht aus kürzeren Pulpfasern wie 2 – 5 mm oder aus hydrophilen Synthesefasern hergestellt sein kann. Auch können Flachsfasern, SAP-Fasern oder solche mit einem anderen Querschnittsprofil zur Anwendung kommen. Die beiden Innenschichten können beide saugende Eigenschaften haben, jedoch zusätzlich sich wesentlich unterscheiden.The possibility of the two inner ones Layers of different fibers that do different jobs Have properties to manufacture has the advantage that such Wipe, hygiene product or the like. Different on the two surfaces Solve tasks can. One side can e.g. B. absorb more liquid than that others, for that but you can rub or the like better with this other surface. act. For example, one inner layer of longer pulp fibers up to 30 mm length persist while the other layer of shorter ones Pulp fibers such as 2-5 mm or can be made of hydrophilic synthetic fibers. Also can Flax fibers, SAP fibers or those with a different cross-sectional profile come into use. The two inner layers can both be absorbent Have properties, but additionally themselves make a significant difference.

Die beiden Außenschichten sollten aus kardierten Faserschichten, aus Spunbond-, Meltblownvliesen oder aus Fasern anderer Faserstruktur bestehen, deren Faserlängen dem jeweiligen Produkt angepasst werden kann. Es kann aber auch ein anderes Vliesbildungsverfahren wie Spunbond, Meltblown oder das Nanovalverfahren gemäß der DE-PS 199 29 709 zur Anwendung kommen. Selbstverständlich können auch einzelne fertig voraus gebildete Tissueschichten zur Sandwichvliesbildung abgelegt werden. Es ist auch eine Sandwichvliesbildung denkbar, bei der die einzelnen Schichten von einer Rolle mit aufgewickelten Einzelvliesen, Gittern, Geweben und dgl. abgezogen werden. Sollte eine Krempel zum Einsatz kommen, die gleich zwei oder drei Krempelfaserschichten herstellt (d. h. über zwei oder drei Abnehmer), so können von diesen nur die obere Schicht einer Kalandrierung, einer Heißluftverfestigung oder einer anderen Art der Vorverfestigung unterworfen werden, womit die den Griff des fertigen Produkts bestimmende untere Schicht flauschig verbleibt.The two outer layers should consist of carded fiber layers, spunbond, meltblown nonwovens or fibers of another fiber structure, the fiber lengths of which can be adapted to the respective product. However, it is also possible to use a different nonwoven formation process such as spunbond, meltblown or the nanoval process according to the DE-PS 199 29 709 come into use. Of course, individual, pre-formed tissue layers can also be deposited for sandwich fleece formation. It is also conceivable to form a sandwich fleece, in which the individual layers are pulled off a roll with wound single fleeces, grids, fabrics and the like. If a card is used that produces two or three layers of carding fibers (i.e. over two or three customers), only the upper layer of these can be subjected to calendering, hot air bonding or another type of pre-bonding, which gives the grip of the finished product-determining lower layer remains fluffy.

Claims (4)

Vliesstoff bestehend aus mindestens vier Schichten, die zur Verfestigung des Vliesstoffes mittels der hydrodynamischen Vernadelung miteinander verbunden sind, wobei die beiden äußeren Schichten aus Vliesen aus kardierbaren Stapelfasern bis 100 mm Länge bzw. Spunbond-, Meltblownfasern oder anderen speziellen Fasern bestehen und die mindestens beiden von den Außenschichten abgedeckten Innenschichten aus unterschiedlichen Pulpfasern oder Pulpfasern und anderen Fasern, wie Synthesefasern oder Naturfasern bestehen.Non-woven fabric consisting of at least four layers for strengthening the nonwoven by means of hydrodynamic needling are interconnected, the two outer layers of nonwovens from cardable staple fibers up to 100 mm in length or spunbond, meltblown fibers or other special fibers and the at least two from the outer layers covered inner layers made of different pulp fibers or Pulp fibers and other fibers, such as synthetic fibers or natural fibers consist. Vliesstoff nach Anspruch 1, dadurch gekennzeichnet, dass eine der Schichten zwischen den Außenschichten aus einem gitterähnlichen Vlies, einem Gitter aus beliebigem Kunststoff oder aus beliebigen anderen Fasern od. dgl. besteht.Nonwoven fabric according to claim 1, characterized in that a the layers between the outer layers from a lattice-like Fleece, a grid made of any plastic or any other Fibers or the like. Vliesstoff nach Anspruch 2, dadurch gekennzeichnet, dass die gitterähnliche Lage die eine oder beide Außenseiten des Vliesstoffs abdeckt.Nonwoven fabric according to claim 2, characterized in that the grid-like Lay one or both outsides of the nonwoven. Verfahren zur Herstellung eines mindestens vierlagigen Sandwichvliesstoffes durch fortlaufendes Bilden der Schichten, also zuerst der Bodenschicht, dann der zumindest beiden Mittelschichten und letztlich der Deckschicht, dann der kontinuierlichen Verfestigung des vorzugsweise vierlagigen Vliesstoffes allein mittels der hydrodynamischen Vernadelung und der abschließenden Trocknung.Process for producing an at least four-layer sandwich nonwoven by continuously forming the layers, i.e. first the bottom layer, then the at least two middle layers and ultimately the top layer, then the continuous solidification of the preferably four-ply Nonwoven fabric only by means of hydrodynamic needling and the final Drying.
DE10233991A 2002-07-05 2002-07-25 Product and process for producing a nonwoven fabric by means of hydrodynamic needling Withdrawn DE10233991A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
DE10233991A DE10233991A1 (en) 2002-07-05 2002-07-25 Product and process for producing a nonwoven fabric by means of hydrodynamic needling
AT03762687T ATE319561T1 (en) 2002-07-05 2003-06-26 PRODUCT AND METHOD FOR PRODUCING A NON-WOVEN FABRIC USING HYDRODYNAMIC NEEDLING
EP20030762687 EP1519833B1 (en) 2002-07-05 2003-06-26 Product and method for producing a non-woven fabric by means of hydrodynamic needling
ES03762687T ES2260658T3 (en) 2002-07-05 2003-06-26 PRODUCT AND PROCEDURE FOR THE ELABORATION OF A FABRIC NOT WOVEN THROUGH HYDRODINAMIC PUNCH.
US10/520,083 US7367093B2 (en) 2002-07-05 2003-06-26 Method for producing a nonwoven material by hydrodynamic needling
PCT/EP2003/050267 WO2004005019A1 (en) 2002-07-05 2003-06-26 Product and method for producing a non-woven fabric by means of hydrodynamic needling
DE50302622T DE50302622D1 (en) 2002-07-05 2003-06-26 PRODUCT AND METHOD FOR PRODUCING A NONWOVEN BY HYDRODYNAMIC SURFACE

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10230555.2 2002-07-05
DE10230555 2002-07-05
DE10233991A DE10233991A1 (en) 2002-07-05 2002-07-25 Product and process for producing a nonwoven fabric by means of hydrodynamic needling

Publications (1)

Publication Number Publication Date
DE10233991A1 true DE10233991A1 (en) 2004-01-15

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Family Applications (1)

Application Number Title Priority Date Filing Date
DE10233991A Withdrawn DE10233991A1 (en) 2002-07-05 2002-07-25 Product and process for producing a nonwoven fabric by means of hydrodynamic needling

Country Status (1)

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DE (1) DE10233991A1 (en)

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Legal Events

Date Code Title Description
8127 New person/name/address of the applicant

Owner name: FLEISSNER GMBH, 63329 EGELSBACH, DE

8141 Disposal/no request for examination