EP0672773A2 - Single-layered nonwoven composite - Google Patents

Single-layered nonwoven composite Download PDF

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Publication number
EP0672773A2
EP0672773A2 EP94115631A EP94115631A EP0672773A2 EP 0672773 A2 EP0672773 A2 EP 0672773A2 EP 94115631 A EP94115631 A EP 94115631A EP 94115631 A EP94115631 A EP 94115631A EP 0672773 A2 EP0672773 A2 EP 0672773A2
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EP
European Patent Office
Prior art keywords
nonwoven
interlining
warp threads
material according
composite material
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Granted
Application number
EP94115631A
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German (de)
French (fr)
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EP0672773B1 (en
EP0672773A3 (en
Inventor
Jürgen Knoke
Manfred Jöst
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Carl Freudenberg KG
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Carl Freudenberg KG
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Application filed by Carl Freudenberg KG filed Critical Carl Freudenberg KG
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Publication of EP0672773A3 publication Critical patent/EP0672773A3/en
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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
    • D04H13/00—Other non-woven fabrics
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D27/00—Details of garments or of their making
    • A41D27/02—Linings
    • A41D27/06—Stiffening-pieces
    • 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
    • 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
    • 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
    • D04H5/04—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by applying or incorporating chemical or thermo-activatable bonding agents in solid or liquid form
    • 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
    • D04H5/06—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by welding-together thermoplastic fibres, filaments, or yarns
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24033—Structurally defined web or sheet [e.g., overall dimension, etc.] including stitching and discrete fastener[s], coating or bond
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24033—Structurally defined web or sheet [e.g., overall dimension, etc.] including stitching and discrete fastener[s], coating or bond
    • Y10T428/24041—Discontinuous or differential coating, impregnation, or bond
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24826—Spot bonds connect components
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
    • Y10T428/24843—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.] with heat sealable or heat releasable adhesive layer
    • 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
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • 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]
    • Y10T442/601—Nonwoven fabric has an elastic quality
    • 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]
    • Y10T442/637—Including strand or fiber material which is a monofilament composed of two or more polymeric materials in physically distinct relationship [e.g., sheath-core, side-by-side, islands-in-sea, fibrils-in-matrix, etc.] or composed of physical blend of chemically different polymeric materials or a physical blend of a polymeric material and a filler material
    • Y10T442/638—Side-by-side multicomponent strand or fiber material

Definitions

  • the invention relates to an iron-on interlining nonwoven according to the preamble of the first claim. Furthermore, a method for manufacturing according to the preamble of the first method claim is specified.
  • EP 0 390 579 B1 describes a quilted textile fabric which has a nonwoven layer and spaced rubbing of stitches with a row spacing of 2 to 10 / cm.
  • the quilting yarn makes up 2 to 20% of the total weight of the textile fabric.
  • the fiber layer consists of bonded fibers, and the textile fabric has a stretchability in the stitch direction of 10 to 75%.
  • the manufacturing process described therein comprises quilting a nonwoven layer with an elastic thread which is stretched by 10 to 100% in the meantime. Parallel, spaced rows of stitches are formed. Then the tension is released and only then the shrinking treatment is carried out.
  • the object of the invention is to provide an elastic, non-woven non-woven composite that can be ironed on by means of adhesive, which is light, has a round, flat and soft handle with perfect surface smoothness and is resistant to washing and dry cleaning. Furthermore, a method for producing this interlining nonwoven composite is to be specified.
  • the interlining nonwoven composite is equipped with an applied adhesive that can be ironed on and contains a 10 to 40 g / m2 heavy nonwoven which has an elastic warp reinforcement. This contains 5 to 25 g / m2 of textured warp threads with a primary elongation of 10 to 35%, a total titer of 30 to 120 dtex and a thread count of 3 to 25 / inch (1.8 to 9.84 / cm). The composite has an elongation of 50 to 120% in the longitudinal direction.
  • the weight ratio of warp threads: nonwoven is 1: 3 to 3: 1.
  • the manufacturing process for the interlining nonwoven composite is carried out in a warp knitting machine with nonwoven insertion.
  • the nonwoven is reinforced with the textured warp filaments and the resulting composite is then heat set and provided with a hot melt adhesive.
  • the nonwoven composite material is subjected to a complete shrinkage process without tension after the warp threads have been introduced, but before the heat setting, after which its final elongation in the longitudinal direction is 50 to 120%.
  • the nonwoven fabric which was initially relatively rigid due to the warp reinforcement and which would be elastic in the relaxed state, would result in an interlining nonwoven composite after the shrinking process, which, after being fixed to an outer fabric by means of hot-melt adhesive, had an excellent surface smoothness also with double fixation and steaming.
  • the oblique drawing also shows no surface unevenness. This is particularly surprising because the warp threads are relatively thick.
  • the composite Before shrinking, the composite has an elongation between 15 and 35%, then between 50 and 120%.
  • Warp threads made of nylon 6 or nylon 66 have proven to be particularly suitable for the invention because they produce a particularly soft elasticity.
  • a particularly good loss of goods is obtained with side / side bicomponent filaments with nylon 6 or 66 on the one hand and polyester component on the other.
  • Warp threads made of polyester are preferred if you want to produce particularly color-stable interlinings.
  • thermoplastic binding fibers can also be included.
  • solidifying binders can also be used. Versions hardened in this way are particularly suitable for longitudinally elastic waistband inserts in the trousers area, which are intended to facilitate adaptation to the body size.
  • the shrinking process In the manufacturing process, the shrinking process must be carried out without tension with regard to the nonwoven fabric provided with the warp threads, because in this way the elasticity of the composite is best achieved.
  • the shrinkage can be done with hot water; However, saturated steam is preferred because the nonwoven composite is least damaged due to the lower moisture absorption, and the shrinking process nevertheless proceeds completely.
  • a fleece with 100% polyamide 6 fibers and a basis weight of 20 g / m2 is placed on a tangling machine.
  • the nonwoven is consolidated on a calender, consisting of an engraved and a smooth roller, at 200 ° C to form a nonwoven.
  • a Raschel machine with the possibility to insert nonwovens, this is worked through with a textured bicomponent warp thread made of polyamide 6 / polyester (side / side), the titer being 78 dtex.
  • the thread count is 18 / inch (7.09 / cm), with even spacing between the threads.
  • the composite material produced in this way is treated without tension in a damping unit with saturated steam and docked. It is shown that the thread, which is almost rigid for the time being, has become elastic with an original longitudinal elongation of about 20% and has an elongation of 80%.
  • the composite is subjected to a fixing process in a stenter at 190 ° C. This is followed by the application of a copolyamide hot melt adhesive in a quantity of 16 g / m 2.
  • Fixing this material in a continuous press at 140 ° C shows both single and double fixation, before and after steaming, a very smooth surface on the outer fabric, without causing unrest when warping in the diagonal direction (diagonal pull).
  • Example 1 The procedure of Example 1 is repeated with the difference that a non-textured polyamide 6 warp thread is used. Its elongation is about 15% in the longitudinal direction and does not change when the goods are subjected to a damping process according to Example 1. The material is processed in the manner described there.
  • this composite With single fixation without damping, this composite has a similar surface calm as in Example 1, but double fixation and above all inclined pull cause a significant deterioration in the desired surface smoothness.
  • the handle is much firmer and less textile.

Abstract

A fleece lining, which can be applied by ironing via an adhesive, is claimed, as is also its prodn. The fleece is of 10-40 g/m<2> wt. and has the following features: (i) it is reinforced by 5-25g/m<2> of elastic texturised reinforcing warp fibres which have a primary elongation of 10-35%, a total titre of 30-120 dtex and a fibre density of 3-25/inch (1.8-9.84/cm); (ii) the wt. ratio of warp fibres:fleece is 1:3-3:1; and (iii) the ultimate longitudinal elongation of the composite reinforced fleece is 50-120%. Claimed mfr. involves the following consecutive steps: (a) fully shrinking the composite fleece contg. reinforcing warp fibres to the required ultimate longitudinal elongation in a tensionless process; (b) heat-setting with simultaneous surface smoothing; and finally (or simultaneously) (c) applying a hot melt adhesive.

Description

Die Erfindung befaßt sich mit einem aufbügelbaren Einlagevliesstoff gemäß dem Oberbegriff des ersten Patentanspruchs. Ferner wird ein Verfahren zur Herstellung gemäß dem Oberbegriff des ersten Verfahrensanspruchs angegeben.The invention relates to an iron-on interlining nonwoven according to the preamble of the first claim. Furthermore, a method for manufacturing according to the preamble of the first method claim is specified.

EP 0 390 579 B1 beschreibt ein steppgebundenes textiles Flächengebilde, welches eine Faservlieslage und im Abstand angeordnete Reiben von Stichen mit einem Reihenabstand von 2 bis 10/cm besitzt. Das Steppgarn macht 2 bis 20% des Gesamtgewichts des textilen Flächengebildes aus. Die Faserlage besteht aus gebundenen Fasern, und das textile Flächengebilde besitzt eine Dehnbarkeit in Stichrichtung von 10 bis 75%. Das dort beschriebene Herstellungsverfahren umfaßt das Steppen einer Faservlieslage mit einem elastischen Faden, welcher währenddessen um 10 bis 100% gestreckt ist. Es werden im Abstand angeordnete, parallele Reihen von Stichen gebildet. Danach wird die Spannung aufgehoben und erst anschließend die Schrumpfbehandlung vorgenommen.EP 0 390 579 B1 describes a quilted textile fabric which has a nonwoven layer and spaced rubbing of stitches with a row spacing of 2 to 10 / cm. The quilting yarn makes up 2 to 20% of the total weight of the textile fabric. The fiber layer consists of bonded fibers, and the textile fabric has a stretchability in the stitch direction of 10 to 75%. The manufacturing process described therein comprises quilting a nonwoven layer with an elastic thread which is stretched by 10 to 100% in the meantime. Parallel, spaced rows of stitches are formed. Then the tension is released and only then the shrinking treatment is carried out.

Diese Abfolge der Verfahrensschritte führt zu einem Vliesstoff, welcher, abgearbeitet als aufbügelbarer Einlagevliesstoff, auf dem Oberstoff im Doppelfixierbereich eine nachteilige Oberflächenunruhe zeigen würde. Die Unruhe tritt auch auf beim Schrägziehen des mit dem Einlagevliesstoff fixierten Oberstoffs. Mit dem beschriebenen Verfahren sind zudem leichte Vliesstoffgewichte von 10 bis 40 g/m² auf einer Kettwirkmaschine nur schwierig darstellbar, weil die Spannungen in Kettrichtung im Zusammenhang mit dem nur leicht gebundenen und leicht zerstörbaren Vliesstoff nur schwer zu kontrollieren sind.This sequence of process steps leads to a nonwoven fabric which, processed as an iron-on interlining nonwoven fabric, would show a disadvantageous surface unevenness on the outer fabric in the double-fixing area. The restlessness also occurs when the outer fabric fixed with the interlining nonwoven fabric is pulled diagonally. With the described method, light nonwoven fabric weights of 10 to 40 g / m 2 are also difficult to produce on a warp knitting machine because the tensions in the warp direction in connection with the lightly bound and easily destructible nonwoven fabric are difficult to control.

Aufgabe der Erfindung ist es, einen elastischen, mittels Haftmasse aufbügelbaren Einlage-Vliesverbundstoff anzugeben, der leicht ist, einen runden, flachen und weichen Griff mit perfekter Oberflächenglätte aufweist und der waschund chemischreinigungs-beständig ist. Ferner soll ein Verfahren zur Herstellung dieses Einlagevliesverbundstoffs angegeben werden.The object of the invention is to provide an elastic, non-woven non-woven composite that can be ironed on by means of adhesive, which is light, has a round, flat and soft handle with perfect surface smoothness and is resistant to washing and dry cleaning. Furthermore, a method for producing this interlining nonwoven composite is to be specified.

Die Lösung dieser Aufgabe besteht in einem Einlagevliesverbundstoff, welcher die Kennzeichen des ersten Patentanspruchs aufweist. Das erfindungsgemäße Verfahren ist im ersten Verfahrensanspruch gekennzeichnet. Vorteilhafte Ausgestaltungen werden jeweils in den Unteransprüchen angegeben.The solution to this problem consists in an interlining nonwoven composite which has the characteristics of the first claim. The method according to the invention is characterized in the first method claim. Advantageous embodiments are specified in the subclaims.

Der Einlagevliesverbundstoff ist mit aufgebrachter Haftmasse aufbügelbar ausgerüstet und enthält einen 10 bis 40 g/m² schweren Vliesstoff, welcher eine elastische Kettverstärkung aufweist. Diese enthält 5 bis 25 g/m² texturierte Kettfäden mit einer Primärdehnung von 10 bis 35%, einem Gesamttiter von 30 bis 120 dtex und einer Fadenzahl von 3 bis 25/inch (1,8 bis 9,84/cm). Der Verbundstoff weist in Längsrichtung eine Dehnung von 50 bis 120% auf. Das Gewichtsverhältnis Kettfäden:Vliesstoff beträgt 1:3 bis 3:1.The interlining nonwoven composite is equipped with an applied adhesive that can be ironed on and contains a 10 to 40 g / m² heavy nonwoven which has an elastic warp reinforcement. This contains 5 to 25 g / m² of textured warp threads with a primary elongation of 10 to 35%, a total titer of 30 to 120 dtex and a thread count of 3 to 25 / inch (1.8 to 9.84 / cm). The composite has an elongation of 50 to 120% in the longitudinal direction. The weight ratio of warp threads: nonwoven is 1: 3 to 3: 1.

Das Herstellungsverfahren für den Einlagevliesverbundstoff wird in einer Kettwirkmaschine mit Vliesstoffeintrag durchgeführt.. Der Vliesstoff wird mit den texturierten Kett-Filamenten verstärkt und der entstehende Verbund danach thermofixiert sowie mit einem Schmelzkleber versehen. Dabei wird der Vliesverbundstoff nach dem Eintrag der Kettfäden, jedoch vor der Thermofixierung, spannungslos einem vollständigen Schrumpfprozeß unterzogen, wonach dessen Enddehnung in Längsrichtung 50 bis 120% beträgt.The manufacturing process for the interlining nonwoven composite is carried out in a warp knitting machine with nonwoven insertion. The nonwoven is reinforced with the textured warp filaments and the resulting composite is then heat set and provided with a hot melt adhesive. The nonwoven composite material is subjected to a complete shrinkage process without tension after the warp threads have been introduced, but before the heat setting, after which its final elongation in the longitudinal direction is 50 to 120%.

Es war nicht zu erwarten, daß der anfangs durch die Kettverstärkung relativ starre und im entspannten Zustand elastische Vliesstoff nach dem Schrumpfprozeß einen Einlagevliesverbundstoff ergibt, welcher nach der Fixierung auf einen Oberstoff mittels Schmelzkleber eine hervorragende Oberflächenglätte auch bei Doppelfixierung und Dämpfen, ergibt. Auch das Schrägziehen läßt, im Gegensatz zu allen kettverstärkten Einlagevliesstoffen des Standes der Technik, keine Oberflächenunruhe erkennen. Dies ist vor allem deshalb überraschend, weil die Kettfäden relativ dick sind.It was not to be expected that the nonwoven fabric, which was initially relatively rigid due to the warp reinforcement and which would be elastic in the relaxed state, would result in an interlining nonwoven composite after the shrinking process, which, after being fixed to an outer fabric by means of hot-melt adhesive, had an excellent surface smoothness also with double fixation and steaming. In contrast to all warp-reinforced interlining nonwovens of the prior art, the oblique drawing also shows no surface unevenness. This is particularly surprising because the warp threads are relatively thick.

Vor der Schrumpfung weist der Verbundstoff eine Längsdehnung zwischen 15 und 35% auf, danach zwischen 50 und 120%.Before shrinking, the composite has an elongation between 15 and 35%, then between 50 and 120%.

Als besonders geeignet für die Erfindung erwiesen sich Kettfäden aus Nylon 6 oder Nylon 66, weil diese eine besondere Weichelastizität erzeugen.Warp threads made of nylon 6 or nylon 66 have proven to be particularly suitable for the invention because they produce a particularly soft elasticity.

Einen besonders guten Warenausfall erhält man mit Seite/Seite-Bikomponentenfilamenten mit Nylon 6- oder 66- einerseits und Polyester-Komponente andererseits.A particularly good loss of goods is obtained with side / side bicomponent filaments with nylon 6 or 66 on the one hand and polyester component on the other.

Kettfäden aus Polyester werden bevorzugt, wenn man besonders farbstabile Einlagestoffe produzieren möchte.Warp threads made of polyester are preferred if you want to produce particularly color-stable interlinings.

Zweckmäßig wird man als Grundlage weiche Vliesstoffe wählen. Bevorzugt sind punktverschweißte, fasergebundene Vliesstoffe.It is advisable to choose soft nonwovens as the basis. Spot-welded, fiber-bonded nonwovens are preferred.

Eine besondere Weichheit wird erzielt, wenn der Vliesstoff mit Wasserstrahlen verfestigt ist. Dabei können im Interesse einer besonders hohen inneren Festigkeit auch thermoplastische Bindefasern zusätzlich enthalten sein.A special softness is achieved when the nonwoven fabric is consolidated with water jets. In the interest of a particularly high internal strength, thermoplastic binding fibers can also be included.

Alternativ sind auch verfestigende Bindemittel einsetzbar. Solchermaßen verhärtete Versionen eignen sich besonders für längselastische Bundeinlagen im Hosenbereich, welche die Anpassung an den Körperumfang erleichtern sollen.Alternatively, solidifying binders can also be used. Versions hardened in this way are particularly suitable for longitudinally elastic waistband inserts in the trousers area, which are intended to facilitate adaptation to the body size.

Beim Herstellungsverfahren muß der Schrumfprozeß bezüglich des mit den Kettfäden versehen Vliesstoffs spannungslos durchgeführt werden, weil auf diese Weise die Elastizität des Verbundstoffs am besten erreicht wird. Die Schrumpfung kann mit Heißwasser erfolgen; bevorzugt ist jedoch Sattdampf, weil dabei wegen der geringeren Feuchtigkeitsaufnahme der Vliesverbundstoff am geringsten geschädigt wird und trotzdem der Schrumpfprozeß vollständig verläuft.In the manufacturing process, the shrinking process must be carried out without tension with regard to the nonwoven fabric provided with the warp threads, because in this way the elasticity of the composite is best achieved. The shrinkage can be done with hot water; However, saturated steam is preferred because the nonwoven composite is least damaged due to the lower moisture absorption, and the shrinking process nevertheless proceeds completely.

Die folgenden Beispiele sollen das Wesen der Erfindung, ohne diese einzuschränken, näher verdeutlichen.The following examples are intended to clarify the essence of the invention, without restricting it.

Beispiel 1example 1

Auf eine Wirrmaschine wird ein Vlies gelegt mit 100% Polyamid 6-Fasern und einem Flächengewicht von 20 g/m². Das Vlies wird auf einem Kalander, bestehend aus einer gravierten und einer glatten Walze, bei 200°C zu einem Vliesstoff verfestigt. Auf einer Raschelmaschine mit Vliesstoffeintrags-Möglichkeit wird dieser mit einem texturierten Bikomponenten-Kettfaden aus Polyamid 6/Polyester (Seite/Seite) durchwirkt, wobei der Titer 78 dtex beträgt. Die Fadenzahl beträgt 18 /inch (7,09/cm), bei gleichmäßigem Abstand zwischen den Fäden.A fleece with 100% polyamide 6 fibers and a basis weight of 20 g / m² is placed on a tangling machine. The nonwoven is consolidated on a calender, consisting of an engraved and a smooth roller, at 200 ° C to form a nonwoven. On a Raschel machine with the possibility to insert nonwovens, this is worked through with a textured bicomponent warp thread made of polyamide 6 / polyester (side / side), the titer being 78 dtex. The thread count is 18 / inch (7.09 / cm), with even spacing between the threads.

Der auf diese Weise hergestellte Verbundstoff wird spannungslos in einem Dämpfungsaggregat mit Sattdampf behandelt und aufgedockt. Dabei zeigt sich, daß der vorerst fast starre Faden mit einer ursprünglichen Längsdehnung von etwa 20% elastisch geworden ist und eine Dehnung von 80% aufweist.The composite material produced in this way is treated without tension in a damping unit with saturated steam and docked. It is shown that the thread, which is almost rigid for the time being, has become elastic with an original longitudinal elongation of about 20% and has an elongation of 80%.

In einem Spannrahmen wird der Verbundstoff bei 190°C einem Fixiervorgang unterzogen. Es folgt der punktförmige Auftrag eines Copolyamid-Schmelzklebers in einer Menge von 16 g/m².The composite is subjected to a fixing process in a stenter at 190 ° C. This is followed by the application of a copolyamide hot melt adhesive in a quantity of 16 g / m 2.

Beim Fixieren dieses Materials in einer Durchlaufpresse bei 140°C zeigt sich sowohl bei Einfach- als auch bei Doppelfixierung, vor und nach dem Abdämpfen, eine sehr glatte Oberfläche auf dem Oberstoff, ohne daß beim Verzug in Diagonalrichtung (Schrägzug) ein Unruhe auftritt.Fixing this material in a continuous press at 140 ° C shows both single and double fixation, before and after steaming, a very smooth surface on the outer fabric, without causing unrest when warping in the diagonal direction (diagonal pull).

Beispiel 2 (Gegenbeispiel)Example 2 (counterexample)

Das Verfahren nach Beispiel 1 wird wiederholt mit dem Unterschied, daß ein nichttexturierter Polyamid 6-Kettfaden eingesetzt wird. Dessen Dehnung liegt bei etwa 15% in Längsrichtung und verändert sich nicht, wenn man die Ware einem Dämpfungsprozeß gemäß Beispiel 1 aussetzt. Das Material wird auf die dort beschriebene Art weiterbehandelt.The procedure of Example 1 is repeated with the difference that a non-textured polyamide 6 warp thread is used. Its elongation is about 15% in the longitudinal direction and does not change when the goods are subjected to a damping process according to Example 1. The material is processed in the manner described there.

Bei Einfachfixierung ohne Dämpfung zeigt dieser Verbundstoff zwar eine ähnliche Oberflächenruhe wie in Beispiel 1, jedoch bewirken Doppelfixierung und vor allem Schrägzug eine deutliche Verschlechterung der gewünschten Oberflächenglätte. Der Griff ist deutlich fester und untextiler.With single fixation without damping, this composite has a similar surface calm as in Example 1, but double fixation and above all inclined pull cause a significant deterioration in the desired surface smoothness. The handle is much firmer and less textile.

Claims (12)

Mittels Haftmasse aufbügelbarer Einlagevliesverbundstoff, enthaltend einen Vliesstoff mit einer elastischen Kettverstärkung, wobei der Vliesstoff 10 bis 40 g/m² schwer ist, mit 5 bis 25 g/m² texturierten Kettfäden verstärkt ist, welche eine Primärdehnung von 10 bis 35%, einen Gesamttiter von 30 bis 120 dtex und eine Fadendichte von 3 bis 25/inch (1,8 bis 9,84/cm) aufweisen, daß das Gewichtsverhältnis Kettfäden:Vliesstoff 1:3 bis 3:1 beträgt und daß der Verbundstoff eine Enddehnung in Längsrichtung von 50 bis 120% besitzt.Interlining nonwoven composite that can be ironed on by adhesive, containing a nonwoven with an elastic warp reinforcement, the nonwoven being 10 to 40 g / m² heavy, reinforced with 5 to 25 g / m² textured warp threads, which have a primary elongation of 10 to 35%, a total titer of 30 up to 120 dtex and a thread density of 3 to 25 / inch (1.8 to 9.84 / cm), that the weight ratio of warp threads: nonwoven is 1: 3 to 3: 1 and that the composite has a final elongation of 50 to Owns 120%. Einlagevliesverbundstoff nach Anspruch 1, dadurch gekennzeichnet, daß die Kettfäden aus Nylon 6 bestehen.Interlining nonwoven composite material according to claim 1, characterized in that the warp threads consist of nylon 6. Einlagevliesverbundstoff nach Anspruch 1, dadurch gekennzeichnet, daß die Kettfäden aus Nylon 66 bestehen.Interlining nonwoven composite material according to claim 1, characterized in that the warp threads consist of nylon 66. Einlagevliesverbundstoff nach Anspruch 1, dadurch gekennzeichnet, daß die Kettfäden durch Nylon 6/Polyester-Bikomponentenfilamente des Seite/Seite-Typs gebildet werden.Interlining nonwoven composite material according to claim 1, characterized in that the warp threads are formed by nylon 6 / polyester bicomponent filaments of the side / side type. Einlagevliesverbundstoff nach Anspruch 1, dadurch gekennzeichnet, daß die Kettfäden durch Nylon 66/Polyester-Bikomponentenfilamente des Seite/Seite-Typs gebildet werden.Interlining nonwoven composite material according to claim 1, characterized in that the warp threads are formed by nylon 66 / polyester bicomponent filaments of the side / side type. Einlagevliesverbundstoff nach Anspruch 1, dadurch gekennzeichnet, daß die Kettfäden aus Polyester bestehen.Interlining nonwoven composite material according to claim 1, characterized in that the warp threads consist of polyester. Einlagevliesverbundstoff nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Vliesstoffkomponente fasergebunden und punktverschweißt ist.Interlining nonwoven composite according to one of the preceding claims, characterized in that the nonwoven component is fiber-bonded and spot-welded. Einlagevliesverbundstoff nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Vliesstoffkomponente mit Wasserstrahlen verfestigt ist.Interlining nonwoven composite according to one of claims 1 to 6, characterized in that the nonwoven component is consolidated with water jets. Einlagevliesverbundstoff nach Anspruch 8, dadurch gekennzeichnet, daß die Vliesstoffkomponente eine Bindefaser enthält und thermisch verfestigt ist.Interlining nonwoven composite material according to claim 8, characterized in that the nonwoven component contains a binding fiber and is thermally bonded. Einlagevliesverbundstoff nach Anspruch 7 oder 8, dadurch gekennzeichnet, daß der Verbund mit einem Bindemittel zusätzlich verfestigt ist.Interlining nonwoven composite material according to claim 7 or 8, characterized in that the composite is additionally consolidated with a binder. Verfahren zur Herstellung eines Einlagevliesverbundstoffs mit den Kennzeichen des Anspruchs 1, wobei der 10 bis 40 g/m² schwere Vliesstoff in einer Kettwirkmaschine mit texturierten Kettfäden, die eine Anfangsdehnung von 10 bis 35% aufweisen, verstärkt wird, wobei das Gewichtsverhältnis Kettfäden:Vliesstoff zu 1:3 bis 3:1 eingestellt wird, wobei ferner die Fadenzahl 3 bis 25/inch (1,8 bis 9,84/cm) gewählt wird, und wobei nach dem Eintrag der Kettfäden, jedoch vor der Thermofixierung, der Vliesstoff spannungslos einem vollständigen Schrumpfprozeß, bis zu einer Enddehnung von 50 bis 120% in Längsrichtung, unterworfen wird, woran sich die Thermofixierung mit gleichzeitiger Oberflächenglättung sowie die Beschichtung mit Schmelzkleber anschließen.A process for producing an interlining nonwoven composite with the characteristics of claim 1, wherein the 10 to 40 g / m² heavy nonwoven is reinforced in a warp knitting machine with textured warp threads that have an initial elongation of 10 to 35%, the weight ratio warp threads: nonwoven to 1 : 3 to 3: 1 is set, the number of threads 3 to 25 / inch (1.8 to 9.84 / cm) being selected, and after the insertion of the warp threads, but before the heat setting, the nonwoven fabric is completely tension-free Shrinking process, up to a final elongation of 50 to 120% in the longitudinal direction, which is followed by the heat setting with simultaneous Connect the surface smoothing and the coating with hot melt adhesive. Verfahren nach Anspruch 11, dadurch gekennzeichnet, daß man den Schrumpfprozeß mit Sattdampf durchführt.A method according to claim 11, characterized in that one carries out the shrinking process with saturated steam.
EP94115631A 1994-03-16 1994-10-05 Single-layered nonwoven composite Expired - Lifetime EP0672773B1 (en)

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DE4408813A DE4408813C1 (en) 1994-03-16 1994-03-16 Process for making a nonwoven composite and interposed nonwoven composite

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EP0672773B1 (en) 2000-01-19
JP2956823B2 (en) 1999-10-04
ZA951499B (en) 1995-12-07
DE4408813C1 (en) 1995-10-05
DE59409086D1 (en) 2000-02-24
ES2142898T3 (en) 2000-05-01
JPH0841760A (en) 1996-02-13
US5552206A (en) 1996-09-03
EP0672773A3 (en) 1998-12-16

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