EP1846612B1 - Textile fabric with improved finish, production and use thereof - Google Patents

Textile fabric with improved finish, production and use thereof Download PDF

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Publication number
EP1846612B1
EP1846612B1 EP20060706822 EP06706822A EP1846612B1 EP 1846612 B1 EP1846612 B1 EP 1846612B1 EP 20060706822 EP20060706822 EP 20060706822 EP 06706822 A EP06706822 A EP 06706822A EP 1846612 B1 EP1846612 B1 EP 1846612B1
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EP
European Patent Office
Prior art keywords
heat
textile fabric
sealing adhesive
fabric according
mfi
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EP20060706822
Other languages
German (de)
French (fr)
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EP1846612A1 (en
Inventor
Peter Grynaeus
Gerhard Schaut
Steffen Kremser
Michael Kalbe
Oliver Staudenmayer
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Carl Freudenberg KG
Original Assignee
Carl Freudenberg KG
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Publication date
Application filed by Carl Freudenberg KG filed Critical Carl Freudenberg KG
Priority to PL06706822T priority Critical patent/PL1846612T3/en
Publication of EP1846612A1 publication Critical patent/EP1846612A1/en
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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M17/00—Producing multi-layer textile fabrics
    • D06M17/04—Producing multi-layer textile fabrics by applying synthetic resins as adhesives
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
    • A41D27/00—Details of garments or of their making
    • A41D27/02—Linings
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N3/045—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds with polyolefin or polystyrene (co-)polymers
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/121—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyesters, polycarbonates, alkyds
    • D06N3/123—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyesters, polycarbonates, alkyds with polyesters
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/125—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyamides
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/14—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with polyurethanes
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2205/00—Condition, form or state of the materials
    • D06N2205/10—Particulate form, e.g. powder, granule
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N2211/00—Specially adapted uses
    • D06N2211/10—Clothing
    • 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.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2041—Two or more non-extruded coatings or impregnations
    • 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.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2041—Two or more non-extruded coatings or impregnations
    • Y10T442/2098—At least two coatings or impregnations of different chemical composition

Definitions

  • the present invention relates to flat textile structures, which are particularly suitable as inlaid or lining materials, and which are characterized by improved performance properties and improved processability, and their preparation and use as liners for textiles.
  • the GB 1435067 discloses laminates of polyurethane layers that can be attached to textile layers.
  • thermoplastic polyurethane elastomer brand PEARLBOND 125 / H which can be used for spot coating, is described on the Internet at www.merquinsa.com.
  • thermoplastics can be used for inlay or lining materials as adhesive media for hot-bonding. Usually used are copolyamides, copolyesters and polyolefins.
  • textile fabrics have already been developed with grid-shaped coatings of at least two superposed grid-shaped layers of heat sealing adhesives of different adhesive properties.
  • Such fabrics are in the DE-A-22 14 236 and the DE-A-23 51 405 described.
  • pressure-sensitive adhesives made of different polymers have already been used. This well-known "double-point method" has proven itself for years in operational practice in the production and processing of inserts and linings.
  • HDPE high density polyethylene
  • This polymer has a high melting range, for example, of about 130 ° C and a low MFI (melt flow index) of 10-20 g / 10 minutes (190 ° C / 2.16 kg load).
  • MFI melt flow index
  • the disadvantage here is that the high melting range and the high viscosity (corresponding to a low MFI value) of the polymer fixation temperatures greater than 140 ° C are necessary.
  • very large quantities of HDPE are necessary to achieve sufficient adhesion.
  • the hot-melt adhesive polymers currently available on the market are not sufficiently suitable for use in applications that are highly wash-resistant and can be dried under high conditions.
  • CH-A-679 257 discloses a fabric having a double point coating of different thermoplastic hot melt sealants.
  • Copolyamides, copolyesters, low density polyethylene (LDPE) in the melting range of 100-125 ° C with MFI values of 2-70g / 10 minutes (140 ° C / 2.16 kg load) do not give acceptable release force values after repeated treatments.
  • LDPE low density polyethylene
  • the object of the present invention is to provide heat-sealable textile fabrics which are strong in processing under the conditions of standardized tests Wash stress with downstream high drying conditions no longer have the known disadvantages of the prior art, survive cleaning cycles of at least 50 cycles and no longer have the known disadvantages such as "color pick-up" and loss of adhesion.
  • the present invention relates to a textile fabric with a coating of two superimposed layers of thermoplastic heat sealable adhesive of different composition, wherein the applied to the first heat seal adhesive second hot-melt adhesive has a melting point> 145 ° C and a melt flow index (MFI) value of 50 to 200 g / 10 minutes (190 ° C / 2.16 kg) and the ratio of the masses of the first and second hot seal adhesives is 2: 1 to 1: 3.
  • MFI melt flow index
  • a textile fabric in which the heat sealant used to form the second layer has a melting point> 150 ° C and an MFI value of 50 to 150 g / 10 minutes (190 ° C / 2.16 kg).
  • the textile fabric with a coating of heat-seal adhesive is preferably one in which the second heat-seal adhesive is based on polyolefin, polyurethane, polyester or polyamide.
  • the fabric is also advantageously one in which the second heat seal adhesive is one based on a polyurethane.
  • the fabric is preferably one in which the second heat-seal adhesive is a polypropylene-based one having a copolyester with melting point> 145 ° C and MFI> 60 g / 10 minutes (190 ° C / 2.16 kg) in a ratio of 2 - contains 98% by weight.
  • the second heat-seal adhesive is a polypropylene-based one having a copolyester with melting point> 145 ° C and MFI> 60 g / 10 minutes (190 ° C / 2.16 kg) in a ratio of 2 - contains 98% by weight.
  • the fabric is one in which the second heat-seal adhesive is a polypropylene-based, which has a copolyester with a melting point> 160 ° C and MFI> 140g / 10 minutes (190 ° C / 2.16 kg) in Ratio 2 - 98 wt.% Contains.
  • the second heat-seal adhesive is a polypropylene-based, which has a copolyester with a melting point> 160 ° C and MFI> 140g / 10 minutes (190 ° C / 2.16 kg) in Ratio 2 - 98 wt.% Contains.
  • the fabric is preferably further one in which the first heat-seal adhesive is one based on a crosslinking or thermolastic polymer.
  • Particularly preferred is a textile fabric in which the first heat-seal adhesive has an MFI of> 10 g / 10 minutes (190 ° C / 2.16 kg).
  • the fabric is advantageously one in which the first heat-seal adhesive is one based on a polyolefin, polyamide and / or a polyester.
  • a particularly preferred fabric is one in which the first heat seal adhesive is one based on a polypropylene.
  • the fabric is one in which the ratio of the masses of the first and second heat seal adhesives is 2: 1 to 1: 3.
  • High-melting copolyesters and coplyamides having a melting point> 145 ° C. and an MFI of> 60 g / 10Min (190 ° C./2.16 kg) can also be used for the second layer.
  • the textile fabrics modified according to the invention with pressure-sensitive adhesives can be produced by all surface-forming techniques. Examples include weaving, laying, knitting, knitting, or wet or dry nonwoven manufacturing processes.
  • textile fabric is to be understood as meaning woven, knitted, knitted or non-woven fabrics.
  • the textile fabrics according to the invention typically have basis weights of 10 to 500 g / m 2 .
  • textile fabrics with basis weights of 30 to 200 g / m 2 are used.
  • Inventive textile fabrics may be solidified in a manner known per se, for example by mechanical or hydrodynamic needling, by melting bonding fibers present in the textile fabric, by thermo-mechanical bonding or by application of binders.
  • the textile fabric After the textile fabric has been produced, it is preferably provided in a manner known per se by the "double-point method" with two layers of different heat-sealable adhesive.
  • Adhesives are preferably used on a polyolefin basis with the above-defined ranges of melt indices (MFI values) as heat-sealable adhesives.
  • melt flow rate is to be understood as meaning the MFI value determined in accordance with DIN 53735: 1980-10 or ISO 1133.
  • polyolefin in addition to alpha-olefins, preferably derived from propylene or ethylene, homopolymers also copolymers, in addition to derived from an alpha-olefin structural units of others ethylenically unsaturated hydrocarbons, for example of other alpha-olefins and / or of vinyl aromatics such as styrene, derived structural units.
  • alpha-olefins examples include ethylene, prop-1-ene, but-1-ene, pent-1-ene, hex-1-ene, oct-1-ene or dec-1-ene.
  • polyolefin types can be used. Examples thereof are polyolefins which have been prepared by the Ziegler-Natta process or using metallocene catalysts.
  • polystyrene resin examples include polyethylenes, polypropylenes or copolymers derived from ethylene and propylene. Further examples are copolymers derived from ethylene or from propylene with further higher carbon number alpha-olefins, such as but-1-ene, pent-1-ene, hex-1-ene, oct-1-ene or dec-1-ene.
  • One or both layers of the heat-sealable adhesive may contain, in addition to the respective polyolefin (mixture), a modified polyolefin.
  • a modified polyolefin This is to be understood as meaning a copolymer which is derived from at least one alpha-olefin, and one ethylenically unsaturated acid or anhydride or an ethylenically unsaturated epoxide compound or a mixture of two or more of these comonomers.
  • the modification may be effected in any desired manner, for example as copolymerization of alpha-olefin monomer (s) together with selected comonomer (s) and / or as grafting of selected polar comonomer (s) onto a polyolefin.
  • alpha olefins or other olefinically unsaturated hydrocarbons that have been used to prepare this group of copolymers individually or in combination with each other have been already mentioned above in the description of the preparation of the homo- or copolymers derived from one or more alpha-olefins.
  • Polypropylene or, in particular, polyethylenes or copolymers derived from ethylene and acrylic acid and / or methacrylic acid esters, in particular the alkyl esters, are preferably used in the group of modified polyolefins.
  • the hot-seal adhesives used according to the invention may additionally contain further conventional auxiliaries. These are added depending on the desired property profile and the method of application and processing of the heat-seal adhesive. Examples of such additives are emulsifiers, thickeners, pigments and processing aids.
  • the material properties of the lower layer resting directly on the coated textile fabric are expediently to be selected so that they have a lower thermoplastic flux under the conditions of heat seal bonding than the overlying upper layer.
  • This can be achieved according to the invention by using heat seal adhesives with the specified ranges for the melt index corresponding to the melt viscosity of the heat seal coating.
  • the heat-sealable adhesives are applied to the surface of the textile fabric in the form of a regular or preferably irregular pattern.
  • the coating grid may be linear, net or spiral or may be embodied in any other regular or irregularly arranged grid form.
  • the heat-sealable adhesives are applied in the form of dot patterns, which are preferably irregular.
  • the underlying directly on the sheet sub-layer 90 to 100 wt.% Polypropylene and 0 to 10% by weight of a high density polyethylene (HDPE), and the top layer underlying the backsheet contains a polypropylene that has the same or higher melt flow than the polymer used in the backsheet.
  • HDPE high density polyethylene
  • the underlayer applied to the fabric consists of a paste applied to the fabric in the form of an irregular dot matrix and the overlying topsheet consists of a powder or powder mixture applied to the fabric (n). In the places where the paste is located, the powder (mixture) is held, while in the other places it can be easily removed from the surface of the fabric.
  • the ratio of the masses of the first and second hot-seal adhesives used according to the invention can vary within wide ranges and ranges from 2: 1 to 1: 3.
  • the first and second heat seal adhesives are used according to the above definitions.
  • the process is a modified "colon process" characterized by the use of selected heat seal adhesives.
  • the preparation of the heat-sealable adhesive used according to the invention can be carried out in various ways.
  • Examples include the grinding of the components with subsequent powder mixture, the mixture of the components in granular form with subsequent grinding, and the mixture of the components by extrusion followed by subsequent grinding.
  • the application of the heat seal adhesive can also be done by different methods known per se.
  • a paste of the first heat-sealable adhesive can be applied to the textile fabric in the form of a regular or preferably irregular pattern.
  • the job can be done by screen printing or by applying through a structured roller.
  • a powder of the second heat-seal adhesive can then be sprinkled onto the textile fabric, which sticks to the paste at the points of the first heat-seal adhesive. From the other places the surface of the fabric, the powder can be removed by suction.
  • the first and second heat seal adhesives are fixed as superimposed layers.
  • inventively modified textile fabrics can be used as inserts or lining materials.
  • the invention also relates to use for these purposes, in particular as solidification insert and / or as lining for high stress in the care treatment.
  • the textile fabrics according to the invention are suitable for use as a consolidation insert or reinforcing insert of collar and cuffs of workwear.
  • inventively modified textile fabrics can be bonded with a textile outer material to be reinforced in a conventional manner.
  • polyester 100% polyester
  • PES polyester
  • a paste was used for the sub-point, which was prepared with the usual excipients, such as emulsifier, thickener and process auxiliaries.
  • This paste contained, as the polymer component, a HDPE having a melting point of 130 ° C. and an MFI of 10 (g / 10 min at 190 ° C. under a load of 2.16 kg) as the scattering powder for the top point, a polyurethane powder having a melting range of 145 -155 ° C and MFI greater than 200 (g / 10 min at 190 ° C / 2.16 kg load).
  • a fabric of 100% cotton pre-treated and equipped for use as a shirt insert with 130 g / m 2 basis weight was coated by the double-point method.
  • a paste was used for the sub-point, which was prepared with the usual excipients, such as emulsifier, thickener and process auxiliaries.
  • the paste contained a polypropylene having a melting point of 160 ° C and an MFI of 50 (g / 10 min at 190 ° C and 2.16 kg load).
  • the scattering powder for the upper point a polypropylene having a melting point of 160 ° C and an MFI value of greater than 150 (g / 10 min at 190 ° C and 2.16 kg load) was used.
  • 10g of sub-grade paste was applied and covered with 19g of scattering powder.
  • the insert thus prepared could be fixed at temperatures of 180 ° C against various outer materials with very good adhesion and was resistant to a 95 ° C laundry.
  • the achieved release forces were after fixation (180 ° C / 20s / 2bar- Gygli shirt press) at 23.5N / 5cm, after 10x 95 ° C washing and drying at 21.2N15cm. After fixation with a fixing time of 30 s, the release forces were 25.7 N / 5 cm after 10 ⁇ 95 ° C. washing and drying at 22.4 N / 5 cm. This insert fixed as above with 25 sec at the same press setting, survived more than 50 cycles of industrial laundering, each followed by drying in Tunnelfiinischer bubble-free.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Manufacturing Of Multi-Layer Textile Fabrics (AREA)
  • Laminated Bodies (AREA)
  • Adhesive Tapes (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Abstract

The invention concerns a textile fabric with a coating consisting of two layers of thermoplastic hot-seal adhesives of differing compositions applied one on top of the other, the second hot-seal adhesive, which is applied to the first, having a melting point of > 135 °C and a melt flow index (MFI) value of 50 to 250 g/10 minutes (190 °C /2,16 kg). The invention also concerns a method for producing a textile fabric comprising the following steps: a) producing a textile fabric using a textile fabric manufacturing technique; b) applying a layer of a first hot-seal adhesive to the textile fabric; and c) applying a layer of a second hot-seal adhesive to the textile fabric so as to d) form a layer of the second hot-seal adhesive over the layer of first hot-seal adhesive, the second hot-seal adhesive used having a melting point of > 135 °C and a melt flow index (MFI) value of 50 to 250 g/10 minutes (190 °C/2,16 kg). The textile fabrics can be used as interlining or lining material that can withstand stress during care treatment.

Description

Die vorliegende Erfindung betrifft textile Flächerigebilde, die sich insbesondere als Einlage- oder Futterstoffe eignen, und die sich durch verbesserte anwendungstechnische Eigenschaften und durch verbesserte Verarbeitbarkeit auszeichnen, sowie deren Herstellung und Verwendung als Einlagen für Textilien.The present invention relates to flat textile structures, which are particularly suitable as inlaid or lining materials, and which are characterized by improved performance properties and improved processability, and their preparation and use as liners for textiles.

Das GB 1435067 offenbart Laminate aus Polyurethanschichten, die an textile Schichten angebracht werden können.The GB 1435067 discloses laminates of polyurethane layers that can be attached to textile layers.

Im Internet werden unter www.merquinsa.com ein thermoplastisches Polyurethanelastomer der Marke PEARLBOND 125/H beschrieben, das zur Punktbeschichtung verwendet werden kann.A thermoplastic polyurethane elastomer brand PEARLBOND 125 / H, which can be used for spot coating, is described on the Internet at www.merquinsa.com.

Es ist bekannt, dass für Einlage- oder Futterstoffe als Haftmedien für die - Heißverklebung verschiedenste Thermoplaste eingesetzt werden können. Zum Einsatz kommen dabei üblicherweise Copolyamide, Copolyester und Polyolefine.It is known that a variety of thermoplastics can be used for inlay or lining materials as adhesive media for hot-bonding. Usually used are copolyamides, copolyesters and polyolefins.

Aus dem Stand der Technik sind mehrere Ansätze zur Verbesserung der Verarbeitungs- und Anwendungseigenschaften von Einlagestoffen bekannt.Several approaches for improving the processing and application properties of interlinings are known from the prior art.

So beschreibt die US-A-3,893,883 mit Schmelzkleber beschichtete textile Flächengebilde, bei denen als Schmelzkleber eine Mischung aus einem ausgewählten Polyethylen und einem Terpenharz eingesetzt wird.That's how it describes US-A-3,893,883 coated with hot melt textile fabrics in which a mixture of a selected polyethylene and a terpene resin is used as a hot melt adhesive.

In der EP-A-110,454 werden Einlagestoffe mit verbessertem Haftvermögen und Beständigkeit bei chemischen Reinigungsverfahren beschrieben, die durch den Einsatz von ausgewählten Polyethylenen mit sehr enger Verteilung des Molekulargewichts, hoher Dichte und ausgewähltem Melt-Flow-Index (MFI) gekennzeichnet sind.In the EP-A-110.454 For example, liners having improved adhesion and resistance to chemical cleaning processes described by US Pat Use of selected polyethylenes with very narrow distribution of molecular weight, high density and selected melt flow index (MFI) are characterized.

Zur Verbesserung von Griff- und Haftwertänderungen innerhalb eines breiten Verarbeitungsumfanges und zum Bereitstellen von einheitlichen Fixierbedingungen bei einer großen Zahl von Oberstoffen sind bereits textile Flächengebilde mit rasterförmigen Beschichtungen aus mindestens zwei übereinanderliegenden rasterförmigen Schichten aus Heißsiegelklebern unterschiedlicher Kleberbeschaffenheit entwickelt worden. Derartige Flächengebilde sind in der DE-A-22 14 236 und der DE-A-23 51 405 beschrieben. In den vorbekannten Flächengebilden wurden bereits Haftkleber aus unterschiedlichen Polymeren eingesetzt. Dieses bekannte "Doppelpunktverfahren" hat sich seit Jahren in der betrieblichen Praxis bei der Herstellung und Verarbeitung von Einlage- und Futterstoffen bewährt.To improve grip and adhesion changes within a wide range of processing and to provide uniform fixing conditions for a large number of outer fabrics textile fabrics have already been developed with grid-shaped coatings of at least two superposed grid-shaped layers of heat sealing adhesives of different adhesive properties. Such fabrics are in the DE-A-22 14 236 and the DE-A-23 51 405 described. In the previously known fabrics pressure-sensitive adhesives made of different polymers have already been used. This well-known "double-point method" has proven itself for years in operational practice in the production and processing of inserts and linings.

Bedingt durch den unterschiedlichen molekularen Aufbau der Polymeren unterscheiden sich diese in ihren physikalischen und chemischen Eigenschaften wie z.B. Schmelzpunkt, Viskosität und Stabilität gegen Lösemittel wie Waschlaugen und chemischen Reinigungsmitteln. Wobei diese Größen eine entscheidende Rolle spielen bei der Auswahl des Polymeren für das Einsatzgebiet der Einlage.Due to the different molecular structure of the polymers, these differ in their physical and chemical properties, e.g. Melting point, viscosity and stability against solvents such as washing liquors and chemical cleaning agents. Where these sizes play a crucial role in the selection of the polymer for the application of the insert.

So wird beispielsweise für den Bereich der Herndeneinlagen, die Waschbedingungen bis 95°C bestehen müssen, typischerweise Polyethylen hoher Dichte (nachstehend aus "HDPE" genannt) als Heißsiegelkleber eingesetzt. Dieses Polymer weist einen hohen Schmelzbereich z.B. von etwa 130°C und einen niedrigen MFI-Wert (Schmelzindex oder melt-flow-index) von 10-20 g/10 Minuten (190°C /2,16 kg Belastung) auf. Nachteilig dabei ist, dass durch den hohen Schmelzbereich und die hohe Viskosität (entsprechend einem niedrigen MFI-Wert) des Polymeren Fixiertemperaturen größer 140°C notwendig sind. Außerdem sind zum Erzielen einer ausreichenden Haftwirkung sehr große Mengen des HDPE notwendig.For example, for the field of horseshoe inlays, which must have wash conditions up to 95 ° C, typically high density polyethylene (hereinafter referred to as "HDPE") is used as the heat seal adhesive. This polymer has a high melting range, for example, of about 130 ° C and a low MFI (melt flow index) of 10-20 g / 10 minutes (190 ° C / 2.16 kg load). The disadvantage here is that the high melting range and the high viscosity (corresponding to a low MFI value) of the polymer fixation temperatures greater than 140 ° C are necessary. In addition, very large quantities of HDPE are necessary to achieve sufficient adhesion.

Speziell für den Einsatz im hochwaschbeständigen und bei hohen Bedingungen zu trocknenden Anwendungen sind die heute auf dem Markt erhältlichen Schmelzkleberpolymere nicht ausreichend geeignet.The hot-melt adhesive polymers currently available on the market are not sufficiently suitable for use in applications that are highly wash-resistant and can be dried under high conditions.

CH-A-679257 offenbart ein textiles Flächengebilde mit einer Doppelpunktbeschichtung aus unterschiedlichen thermoplastischen Heiβßsiegelklebern. CH-A-679 257 discloses a fabric having a double point coating of different thermoplastic hot melt sealants.

Copolyamide, Copolyester, Polyethylen geringer Dichte (LDPE) im Schmelzbereich von 100 -125°C mit MFI-Werten von 2 - 70g/10 Minuten (140°C/2,16 kg Belastung) ergeben keine akzeptablen Trennkraftwerte nach mehrmaligen Pflegebehandlungen.Copolyamides, copolyesters, low density polyethylene (LDPE) in the melting range of 100-125 ° C with MFI values of 2-70g / 10 minutes (140 ° C / 2.16 kg load) do not give acceptable release force values after repeated treatments.

Auch HDPE im Schmelzbereich von etwa 130°C und einem niedrigen MFI-Wert von 2 - 20 g/10 Minuten (190°C /2,16 kg Belastung) für diesen Einsatz mit hohen Auflagemengen ergeben zwar ausreichend gute Trennkraftwerte, aber bei den Trocknungsprozessen z.B. im Tunnelfinischer tritt Blasenbildung und Delamination der verklebten Lagen auf. Die hohe mechanische Beanspruchung durch die stark bewegte, heiße Luft und der Dampfzusatz sind extrem beanspruchend für die aufgetragene Schmelzkleberbeschichtung.Even HDPE in the melting range of about 130 ° C and a low MFI value of 2 - 20 g / 10 minutes (190 ° C / 2.16 kg load) for this application with high production quantities yield sufficiently good release force values, but in the drying processes eg In the tunnel fisherman blistering and delamination of the bonded layers occurs. The high mechanical stress caused by the strongly moving, hot air and the added steam are extremely demanding for the applied hot-melt adhesive coating.

Ausgehend von diesem Stand der Technik ist es Aufgabe der vorliegenden Erfindung, mit Haftklebern ausgerüstete textile Flächengebilde bereitzustellen, die mit üblichen Fixierpressen problemlos verarbeitet werden können und die eine sehr gute Waschbeständigkeit bis 95 °C zeigen und die extremen Trocknungsbedingungen bei hohen Zyklenzahlen überstehen.Based on this prior art, it is an object of the present invention to provide equipped with pressure-sensitive adhesives textile fabrics that can be easily processed with conventional fixing presses and show a very good wash resistance to 95 ° C and survive the extreme drying conditions at high cycle numbers.

Die Aufgabe der vorliegenden Erfindung besteht in der Bereitstellung von mit Heißsiegelklebern ausgerüsteten textilen Flächengebilden, die bei der Verarbeitung unter den Bedingungen von standardisierten Tests für starke Waschbeanspruchung mit nachgeschalteten hohen Trocknungsbedingungen die bekannten Nachteile des Standes der Technik nicht mehr aufweisen, Reinigungszyklen von mindestens 50 Zyklen überstehen und dabei die bekannten Nachteile, wie "color pick up" und Haftungsverlust nicht mehr aufweisen.The object of the present invention is to provide heat-sealable textile fabrics which are strong in processing under the conditions of standardized tests Wash stress with downstream high drying conditions no longer have the known disadvantages of the prior art, survive cleaning cycles of at least 50 cycles and no longer have the known disadvantages such as "color pick-up" and loss of adhesion.

Die vorliegende Erfindung betrifft ein textiles Flächengebilde mit einer Beschichtung aus zwei übereinanderliegenden Schichten aus thermoplastischen Heißsiegelkleber unterschiedlicher Zusammensetzung, wobei der auf den ersten Heißsiegelkleber aufgetragene zweite Heißsiegelkleber einen Schmelzpunkt > 145°C und einen Melt-Flow-Index (MFI)-Wert von 50 bis 200 g/10 Minuten (190°C /2,16 kg) aufweist und das Verhättnis der Massen des ersten und des zweiten Heiβßsiegelklebers 2:1 bis 1:3 beträgt.The present invention relates to a textile fabric with a coating of two superimposed layers of thermoplastic heat sealable adhesive of different composition, wherein the applied to the first heat seal adhesive second hot-melt adhesive has a melting point> 145 ° C and a melt flow index (MFI) value of 50 to 200 g / 10 minutes (190 ° C / 2.16 kg) and the ratio of the masses of the first and second hot seal adhesives is 2: 1 to 1: 3.

Besonders bevorzugt ist ein textiles Flächengebilde, bei dem der zur Ausbildung der zweiten Schicht eingesetzte Heißsiegelkleber einen Schmelzpunkt > 150°C und einen MFI-Wert von 50 bis 150 g/10 Minuten (190°C /2,16 kg) aufweist.Particularly preferred is a textile fabric in which the heat sealant used to form the second layer has a melting point> 150 ° C and an MFI value of 50 to 150 g / 10 minutes (190 ° C / 2.16 kg).

Weiterhin bevorzugt ist das textile Flächengebilde mit einer Beschichtung aus Heißsiegelkleber eines, bei dem der zweite Heißsiegelkleber einer auf der Basis von Polyolefin, Polyurethan, Polyester oder Polyamid ist.Furthermore, the textile fabric with a coating of heat-seal adhesive is preferably one in which the second heat-seal adhesive is based on polyolefin, polyurethane, polyester or polyamide.

Das textile Flächengebilde ist vorteilhafter Weise weiterhin eines, bei dem der zweite Heißsiegelkleber eines auf der Basis eines Polyurethans ist.The fabric is also advantageously one in which the second heat seal adhesive is one based on a polyurethane.

Das textile Flächengebilde ist bevorzugt eines, bei dem der zweite Heißsiegelkleber eines auf der Basis Polypropylen ist, welches mit einen Copolyester mit Schmelzpunkt > 145°C und MFI > 60 g/10 Minuten (190°C /2,16 kg) im Verhältnis 2 - 98 Gew.% enthält.The fabric is preferably one in which the second heat-seal adhesive is a polypropylene-based one having a copolyester with melting point> 145 ° C and MFI> 60 g / 10 minutes (190 ° C / 2.16 kg) in a ratio of 2 - contains 98% by weight.

Besonders bevorzugt ist das textile Flächengebilde eines, bei dem der zweite Heißsiegelkleber einer auf der Basis Polypropylen ist, welches einen Copolyester mit einen Schmelzpunkt > 160°C und einen MFI von > 140g/10 Minuten (190°C /2,16 kg) im Verhältnis 2 - 98 Gew.% enthält.More preferably, the fabric is one in which the second heat-seal adhesive is a polypropylene-based, which has a copolyester with a melting point> 160 ° C and MFI> 140g / 10 minutes (190 ° C / 2.16 kg) in Ratio 2 - 98 wt.% Contains.

Das textile Flächengebilde ist vorzugsweise weiterhin eines, bei dem der erste Heißsiegelkleber eine auf der Basis eines vernetzenden oder eines thermolastischen Polymeren ist.The fabric is preferably further one in which the first heat-seal adhesive is one based on a crosslinking or thermolastic polymer.

Besonders bevorzugt ist ein textiles Flächengebilde, bei dem der erste Heißsiegelkleber einen MFI von > 10g/10 Minuten (190°C /2,16 kg) besitzt.Particularly preferred is a textile fabric in which the first heat-seal adhesive has an MFI of> 10 g / 10 minutes (190 ° C / 2.16 kg).

Weiterhin bevorzugt ist ein textiles Flächengebilde, bei dem der erste Heißsiegelkleber einen MFI im Bereich von > 20g/10 Minuten (190°C /2,16 kg) bis 200g/10 Minuten (190°C /2,16 kg) besitzt.Preference is furthermore given to a textile fabric in which the first heat-seal adhesive has an MFI in the range from> 20 g / 10 minutes (190 ° C./2.16 kg) to 200 g / 10 minutes (190 ° C./2.16 kg).

Das textile Flächengebilde ist vorteilhafter Weise eines, bei dem der erste Heißsiegelkleber einer auf der Basis eines Polyolefins, Polyamids und/oder eines Polyesters ist.The fabric is advantageously one in which the first heat-seal adhesive is one based on a polyolefin, polyamide and / or a polyester.

Ein besonders bevorzugtes textiles Flächengebilde ist eines, bei dem die erste Heißsiegelkleber einer auf der Basis eines Polypropylens ist.A particularly preferred fabric is one in which the first heat seal adhesive is one based on a polypropylene.

Das textile Flächengebilde ist eines, bei dem das Verhältnis der Massen des ersten und zweiten Heißsiegelklebers 2:1 bis 1:3 beträgt.The fabric is one in which the ratio of the masses of the first and second heat seal adhesives is 2: 1 to 1: 3.

Auch hochschmelzende Copolyester und Coplyamide mit Schmelzpunkt > 145°C und einem MFI von > 60 g/10Min (190°C /2,16 kg) können für die zweite Schicht zum Einsatz kommen.High-melting copolyesters and coplyamides having a melting point> 145 ° C. and an MFI of> 60 g / 10Min (190 ° C./2.16 kg) can also be used for the second layer.

Es wurde in überraschender Weise gefunden, dass durch Einsatz von Haftklebern mit ausgewählten Schmelzviskositäten und in Kombination mit dem an sich bekannten Doppelpunktverfahren zum Auftrag der Heißsiegelkleber eine Einlage mit einer auf Polyolefinen basierenden Heißsiegelkleber dargestellt werden kann, die bei Temperaturen über 155°C auf Oberstoffen gut fixierbar sind, und die danach auch mindestens 25 über 50 Zyklen die Prüfbedingungen nach ISO 15797:2004" "Industrielle Wasch- und Finishverfahren zur Prüfung von Arbeitskleidung und/oder Waschbehandlungen bis 95°C bestehen, sowie im Einsatz keinen "color pick up" zeigen.It has surprisingly been found that the use of pressure-sensitive adhesives with selected melt viscosities and in combination with the known per se dot method for applying the heat-seal adhesive can be represented with a polyolefins based heat-seal adhesive, the good at temperatures above 155 ° C on outer fabrics can be fixed and which then pass the test conditions according to ISO 15797: 2004 "" Industrial Washing and Finishing Procedures for Testing Workwear and / or Washing Treatments up to 95 ° C for at least 25 Over 50 Cycles, and show no "color pick up" during use ,

Weiter wurde überraschend festgestellt, dass trotz vergleichbar hoher MFI-Werte der eingesetzten Polymeren kein Heißsiegelkleberdurchschlag durch den Oberstoff und Rückvernietung bei Sandwichfixierung zwischen den Lagen festgestellt werden konnte.Furthermore, it was surprisingly found that, despite comparably high MFI values of the polymers used, it was not possible to detect heat-seal adhesive breakdown by the outer material and back-riveting during sandwich fixation between the layers.

Ferner wurde überraschenderweise gefunden, dass oben beschriebene Polymere bereits im einschichtigen Auftrag mittels Dispersionspastenpunktdruck oder durch Auftrag des Polymerpulvers mittels Gravurwalzen (Puderpunktverfahren) bereits sehr gute Prüfwerte und höhere Zyklenzahlen als Standardpolymere erzielen konnten.
Die erfindungsgemäß mit Haftklebern modifizierten textilen Flächengebilde können nach sämtlichen flächenbildenden Techniken hergestellt werden. Beispiele dafür sind Weben, Legen, Wirken, Stricken oder nasse oder trockenen Vliesherstellungsverfahren.Furthermore, it was surprisingly found that polymers described above could already achieve very good test values and higher cycle numbers than standard polymers even in the single-coat application by means of dispersion paste dot printing or by application of the polymer powder by means of gravure rolls (powder dot method).
The textile fabrics modified according to the invention with pressure-sensitive adhesives can be produced by all surface-forming techniques. Examples include weaving, laying, knitting, knitting, or wet or dry nonwoven manufacturing processes.

Unter dem Begriff "textiles Flächengebilde" sind im Rahmen dieser Beschreibung Gewebe, Gestricke, Gewirke, Gelege oder insbesondere Vliesstoffe zu verstehen.In the context of this description, the term "textile fabric" is to be understood as meaning woven, knitted, knitted or non-woven fabrics.

Typischerweise weisen die erfindungsgemäßen textilen Flächengebilde, insbesondere die Vliesstoffe, Flächengewichte von 10 bis 500 g/m2 auf.The textile fabrics according to the invention, in particular the nonwovens, typically have basis weights of 10 to 500 g / m 2 .

Besonders bevorzugt kommen textile Flächengebilde mit Flächengewichten von 30 bis 200 g/m2 zum Einsatz.Particularly preferred are textile fabrics with basis weights of 30 to 200 g / m 2 are used.

Erfindungsgemäße textile Flächengebilde können in an sich bekannter Weise verfestigt sein, beispielsweise durch mechanisches oder hydrodynamisches Nadeln, durch Aufschmelzen von im textilen Flächengebilde vorhandenen Bindefasem, durch thermisch-mechanisches Verfestigen oder durch Applikation von Bindemitteln.Inventive textile fabrics may be solidified in a manner known per se, for example by mechanical or hydrodynamic needling, by melting bonding fibers present in the textile fabric, by thermo-mechanical bonding or by application of binders.

Nach der Herstellung des textilen Flächengebildes wird dieses in an sich bekannter Weise bevorzugt nach dem "Doppelpunktverfahren" mit zwei Schichten unterschiedlicher Heißsiegelkleber versehen.After the textile fabric has been produced, it is preferably provided in a manner known per se by the "double-point method" with two layers of different heat-sealable adhesive.

Als Heißsiegelkleber werden Kleber bevorzugt auf Polyolefinbasis mit den oben definierten Bereichen der Schmelzindizes (MFI-Werte) eingesetzt.Adhesives are preferably used on a polyolefin basis with the above-defined ranges of melt indices (MFI values) as heat-sealable adhesives.

Unter Schmelzindex ist im Rahmen dieser Beschreibung der MFI-Wert, ermittelt nach DIN 53735: 1980-10 oder ISO 1133 zu verstehen.In the context of this description, melt flow rate is to be understood as meaning the MFI value determined in accordance with DIN 53735: 1980-10 or ISO 1133.

Der Begriff Polyolefin umfasst neben von alpha-Olefinen, vorzugsweise von Propylen oder Ethylen, abgeleiteten Homopolymeren auch Copolymere, die neben von einem alpha-Olefin abgeleiteten Struktureinheiten auch von anderen ethylenisch ungesättigten Kohlenwasserstoffen, beispielsweise von weiteren alpha-Olefinen und/oder von Vinylaromaten, wie Styrol, abgeleitete Struktureinheiten enthalten.The term polyolefin in addition to alpha-olefins, preferably derived from propylene or ethylene, homopolymers also copolymers, in addition to derived from an alpha-olefin structural units of others ethylenically unsaturated hydrocarbons, for example of other alpha-olefins and / or of vinyl aromatics such as styrene, derived structural units.

Beispiele für alpha-Olefine sind Ethylen, Prop-1-en, But-1-en, Pent-1-en, Hex-1-en, Oct-1-en oder Dec-1-en.Examples of alpha-olefins are ethylene, prop-1-ene, but-1-ene, pent-1-ene, hex-1-ene, oct-1-ene or dec-1-ene.

Es können alle an sich bekannten Polyolefin-Typen eingesetzt werden. Beispiele dafür sind Polyolefine, die nach dem Ziegler-Natta-Verfahren oder unter Einsatz von Metallocen-Katalysatoren hergestellt worden sind.All known polyolefin types can be used. Examples thereof are polyolefins which have been prepared by the Ziegler-Natta process or using metallocene catalysts.

Beispiele für bevorzugt eingesetzte Polyolefine sind Polyethylene, Polypropylene oder Copolymere abgeleitet von Ethylen und Propylen. Weitere Beispiele sind Copolymere abgeleitet von Ethylen oder von Propylen mit weiteren alpha-Olefinen höherer Kohlenstoffzahl, wie But-1-en, Pent-1-en, Hex-1-en, Oct-1-en oder Dec-1-en.Examples of preferred polyolefins are polyethylenes, polypropylenes or copolymers derived from ethylene and propylene. Further examples are copolymers derived from ethylene or from propylene with further higher carbon number alpha-olefins, such as but-1-ene, pent-1-ene, hex-1-ene, oct-1-ene or dec-1-ene.

Eine oder beide Schichten des Heißsiegelklebers können neben dem jeweiligen Polyolefin(gemisch) noch ein modifiziertes Polyolefin enthalten. Darunter ist ein Copolymer zu verstehen, das von mindestens einem alpha-Olefin, und einer ethylenisch ungesättigten Säure oder deren Anhydrid oder einer ethylenisch ungesättigten Epoxidverbindung oder einem Gemisch zweier oder mehreren dieser Comonomeren abgeleitet ist. Dabei kann die Modifikation auf beliebige Weise erfolgt sein, beispielsweise als Copolymerisation von alpha-Olefin Monomer(en) zusammen mit ausgewähltem Comonomer(en) und/oder als Pfropfung von ausgewählten polaren Comonomer(en) auf ein Polyolefin.One or both layers of the heat-sealable adhesive may contain, in addition to the respective polyolefin (mixture), a modified polyolefin. This is to be understood as meaning a copolymer which is derived from at least one alpha-olefin, and one ethylenically unsaturated acid or anhydride or an ethylenically unsaturated epoxide compound or a mixture of two or more of these comonomers. The modification may be effected in any desired manner, for example as copolymerization of alpha-olefin monomer (s) together with selected comonomer (s) and / or as grafting of selected polar comonomer (s) onto a polyolefin.

Beispiele für alpha-Olefine oder andere olefinisch ungesättigte Kohlenwasserstoffe, die zur Herstellung dieser Gruppe von Copolymeren einzeln oder in Kombination miteinander eingesetzt worden sind, wurden bereits weiter oben bei der Beschreibung der Herstellung der Homo- oder Copolymeren abgeleitet von einem oder mehreren alpha-Olefinen aufgezählt.Examples of alpha olefins or other olefinically unsaturated hydrocarbons that have been used to prepare this group of copolymers individually or in combination with each other have been already mentioned above in the description of the preparation of the homo- or copolymers derived from one or more alpha-olefins.

Bevorzugt setzt man in der Gruppe der modifizierten Polyolefine Polypropylene oder insbesondere Polyethylene oder Copolymere abgeleitet von Ethylen und Acrylsäure- und/oder Methacrylsäureestern, insbesondere den Alkylestern, ein.Polypropylene or, in particular, polyethylenes or copolymers derived from ethylene and acrylic acid and / or methacrylic acid esters, in particular the alkyl esters, are preferably used in the group of modified polyolefins.

Die erfindungsgemäß eingesetzten Heißsiegelkleber können daneben noch weitere an sich übliche Hilfsstoffe enthalten. Diese werden in Abhängigkeit des gewünschten Eigenschaftsprofils und der Aufbringungs- und Verarbeitungsweise des Heißsiegelklebers zugesetzt. Beispiele für solche Zusätze sind Emulgatoren, Verdicker, Pigmente und Verarbeitungshilfsmittel.The hot-seal adhesives used according to the invention may additionally contain further conventional auxiliaries. These are added depending on the desired property profile and the method of application and processing of the heat-seal adhesive. Examples of such additives are emulsifiers, thickeners, pigments and processing aids.

Die Materialeigenschaften der unmittelbar auf dem beschichteten textilen Flächengebilde aufliegenden Unterschicht sind zweckmäßig so auszuwählen, dass sie unter den Bedingungen der Heißsiegelverklebung einen geringeren thermoplastischen Fluss besitzen als die darüber liegende Oberschicht. Dieses lässt sich erfindungsgemäß durch Einsatz von Heißsiegelklebern mit den angegebenen Bereichen für den Schmelzindex entsprechend der Schmelzviskosität der Heißsiegelbeschichtung erreichen.The material properties of the lower layer resting directly on the coated textile fabric are expediently to be selected so that they have a lower thermoplastic flux under the conditions of heat seal bonding than the overlying upper layer. This can be achieved according to the invention by using heat seal adhesives with the specified ranges for the melt index corresponding to the melt viscosity of the heat seal coating.

Die Heißsiegelkleber werden in Form eines regelmäßigen oder vorzugsweise irregulären Musters auf die Oberfläche des textilen Flächengebildes aufgetragen. Das Beschichtungsraster kann linien-, netz- oder spiralförmig sein oder kann in jeder anderen regelmäßig oder irregulär angeordneten Rasterform ausgeführt sein. Bevorzugt werden die Heißsiegelkleber in Form von Punktrastern, die vorzugsweise irregulär sind, aufgetragen.The heat-sealable adhesives are applied to the surface of the textile fabric in the form of a regular or preferably irregular pattern. The coating grid may be linear, net or spiral or may be embodied in any other regular or irregularly arranged grid form. Preferably, the heat-sealable adhesives are applied in the form of dot patterns, which are preferably irregular.

In einer bevorzugten Ausführungsform enthält die unmittelbar auf dem Flächengebilde aufliegende Unterschicht 90 bis 100 Gew.% Polypropylen und 0 bis 10 Gew. % eines Polyethylen hoher Dichte (HDPE), und die auf der Unterschicht liegende Oberschicht enthält ein Polypropylen, das den gleichen oder einen höheren Schmelzfluss als das eingesetzte Polymer in der Unterschicht.In a preferred embodiment, the underlying directly on the sheet sub-layer 90 to 100 wt.% Polypropylene and 0 to 10% by weight of a high density polyethylene (HDPE), and the top layer underlying the backsheet contains a polypropylene that has the same or higher melt flow than the polymer used in the backsheet.

In einer weiteren bevorzugten Ausführungsform besteht die auf der dem Flächengebilde aufgetragene Unterschicht aus einer Paste, die in der Form eines irregulären Punktrasters auf das Flächengebilde aufgetragen wurde und die darüber liegende Oberschicht besteht aus einem Pulver oder einer Pulvermischung, das/die auf das Flächengebilde aufgetragen wurde(n). An den Stellen, an denen sich die Paste befindet, wird das Pulver(gemisch) festgehalten, während es sich an den anderen Stellen von der Oberfläche des Flächengebildes leicht entfernen lässt.In a further preferred embodiment, the underlayer applied to the fabric consists of a paste applied to the fabric in the form of an irregular dot matrix and the overlying topsheet consists of a powder or powder mixture applied to the fabric (n). In the places where the paste is located, the powder (mixture) is held, while in the other places it can be easily removed from the surface of the fabric.

Das Verhältnis der Massen der erfindungsgemäß eingesetzten ersten und zweiten Heißsiegelkleber kann in weiten Bereichen schwanken und bewegt sich im Bereich von 2:1 bis 1:3.The ratio of the masses of the first and second hot-seal adhesives used according to the invention can vary within wide ranges and ranges from 2: 1 to 1: 3.

Die Erfindung betrifft auch ein Verfahren zur Herstellung des oben beschriebenen textilen Flächengebildes. Das Verfahren umfasst die Schritte:

  1. a) Herstellung eines textilen Flächengebildes durch eine textile Flächenbildungstechnik in an sich bekannter Weise,
  2. b) Auftragen einer Schicht eines ersten Heißsiegelklebers in Form eines regelmäßigen oder irregulären Musters auf das textile Flächengebilde in an sich bekannter Weise und
  3. c) Auftragen einer Schicht eines zweiten Heißsiegelklebers auf das textile Flächengebilde, so dass sich eine Schicht aus dem zweiten Heißsiegelkleber über der Schicht des ersten Heißsiegelklebers in an sich bekannter Weise ausbildet.
The invention also relates to a process for the production of the above-described textile fabric. The method comprises the steps:
  1. a) production of a textile fabric by a textile surface formation technique in a manner known per se,
  2. b) applying a layer of a first heat seal adhesive in the form of a regular or irregular pattern on the fabric in a conventional manner and
  3. c) applying a layer of a second heat-seal adhesive to the textile fabric so that a layer of the second heat-seal adhesive forms over the layer of the first heat-seal adhesive in a manner known per se.

Dabei werden die ersten und zweiten Heißsiegelkleber gemäß den obigen Definitionen eingesetzt.The first and second heat seal adhesives are used according to the above definitions.

Bei dem Verfahren handelt es sich um ein modifiziertes "Doppelpunktverfahren", das durch den Einsatz ausgewählter Heißsiegelkleber charakterisiert ist.The process is a modified "colon process" characterized by the use of selected heat seal adhesives.

Die Herstellung der erfindungsgemäß eingesetzten Heißsiegelkleber kann dabei auf verschiedenen Wegen erfolgen.The preparation of the heat-sealable adhesive used according to the invention can be carried out in various ways.

Beispiele dafür sind die Vermahlung der Komponenten mit nachheriger Pulvermischung, die Mischung der Komponenten in Granulatform mit anschließender Vermahlung, sowie die Mischung der Komponenten mittels Extrusion gefolgt von anschließender Vermahlung.Examples include the grinding of the components with subsequent powder mixture, the mixture of the components in granular form with subsequent grinding, and the mixture of the components by extrusion followed by subsequent grinding.

Das Auftragen der Heißsiegelkleber kann ebenfalls nach unterschiedlichen an sich bekannten Verfahren erfolgen.The application of the heat seal adhesive can also be done by different methods known per se.

So kann in einem ersten Schritt eine Paste des ersten Heißsiegelklebers auf das textile Flächengebilde in Form eines regelmäßigen oder vorzugsweise irregulären Musters aufgetragen werden. Der Auftrag kann dabei durch Siebdruck oder durch Aufbringen durch eine strukturierte Walze erfolgen. In einem zweiten Schritt kann dann ein Pulver aus dem zweiten Heißsiegelkleber auf das textile Flächengebilde aufgestreut werden, dass an den Stellen des ersten Heißsiegelklebers an der Paste kleben bleibt. Von den übrigen Stellen der Oberfläche des textilen Flächengebildes kann das Pulver durch Absaugen entfernt werden. In einer nachfolgenden thermischen Behandlung werden der erste und zweite Heißsiegelkleber als übereinanderliegende Schichten fixiert.Thus, in a first step, a paste of the first heat-sealable adhesive can be applied to the textile fabric in the form of a regular or preferably irregular pattern. The job can be done by screen printing or by applying through a structured roller. In a second step, a powder of the second heat-seal adhesive can then be sprinkled onto the textile fabric, which sticks to the paste at the points of the first heat-seal adhesive. From the other places the surface of the fabric, the powder can be removed by suction. In a subsequent thermal treatment, the first and second heat seal adhesives are fixed as superimposed layers.

Die erfindungsgemäß modifizierten textilen Flächengebilde lassen sich als Einlage- oder Futterstoffe einsetzen. Die Erfindung betrifft auch Verwendung zu diesen Zwecken, insbesondere als Verfestigungseinlage und/oder als Futterstoff für hohe Beanspruchung in der Pflegebehandlung.The inventively modified textile fabrics can be used as inserts or lining materials. The invention also relates to use for these purposes, in particular as solidification insert and / or as lining for high stress in the care treatment.

Insbesondere sind die erfindungsgemäßen textilen Flächengebilde zur Verwendung als Verfestigungseinlage oder Verstärkungseinlage von Kragen- und Manschetten von Berufsbekleidung geeignet.In particular, the textile fabrics according to the invention are suitable for use as a consolidation insert or reinforcing insert of collar and cuffs of workwear.

Die erfindungsgemäß modifizierten textilen Flächengebilde können mit einem zu verstärkenden textilen Oberstoff in an sich bekannter Weise verklebt werden.The inventively modified textile fabrics can be bonded with a textile outer material to be reinforced in a conventional manner.

Die nachstehenden Beispiele erläutern die Erfindung ohne diese zu begrenzen.The following examples illustrate the invention without limiting it.

Beispiel 1 (nicht erfindungsgemäβß)Example 1 (not according to the invention)

100 % Polyester ("PES") Vliesstoffbasis mit 100 g/m2 Flächengewicht wurde nach dem an sich bekanntem Doppelpunktverfahren beschichtet. Dabei wurde für den Unterpunkt eine Paste eingesetzt, die mit den üblichen Hilfsstoffen, wie Emulgator, Verdicker und Prozesshilfsmitteln angesetzt war. Diese Paste enthielt als Polymerkomponente ein HDPE mit einem Schmelzpunkt von 130°C und einem MFI-Wert von 10 (g/10 min bei 190°C unter einer Belastung von 2,16 kg) als Streupulver für den Oberpunkt wurde ein Polyurethanpulver mit Schmelzbereich 145-155°C und einem MFI-Wert von größer als 200 (g/10 min bei 190°C / Belastung von 2,16 kg) aufgetragen.100% polyester ("PES") nonwoven base with 100 g / m 2 basis weight was coated according to the known per se double-point method. In this case, a paste was used for the sub-point, which was prepared with the usual excipients, such as emulsifier, thickener and process auxiliaries. This paste contained, as the polymer component, a HDPE having a melting point of 130 ° C. and an MFI of 10 (g / 10 min at 190 ° C. under a load of 2.16 kg) as the scattering powder for the top point, a polyurethane powder having a melting range of 145 -155 ° C and MFI greater than 200 (g / 10 min at 190 ° C / 2.16 kg load).

Im Beschichtungsprozess wurden 12g Unterpunktpaste aufgetragen und mit 25g Streupulver belegt.
Die derart hergestellte Einlage konnte bei Temperaturen 175°C gegen verschiedene Oberstoffe mit sehr guter Haftung fixiert werden und war gegen eine 95°C Wäsche beständig.
Die erzielten Trennkräfte waren nach der Fixierung (175°C/20s/2bar- Gygli Hemdenpresse) bei 21,6N/5cm, nach 10x 95°C Wäsche und Trocknung bei 17,4N/5cm.
Nach der Fixierung mit 30 s Fixierzeit lagen die Trennkräfte 30,7N/5cm nach 10x 95°C Wäsche und Trocknung bei 17,4N/5cm.
Diese Einlage fixiert wie oben mit 25 s bei gleicher Presseneinstellung, überstand 28 Zyklen einer Industriewäsche mit jeweils anschliesender Trocknung im Tunnelfinischer blasenfrei.In the coating process, 12g of sub-grade paste was applied and covered with 25g of scattering powder.
The liner thus prepared could be fixed at temperatures of 175 ° C against various outer materials with very good adhesion and was resistant to a 95 ° C laundry.
The achieved release forces were after fixation (175 ° C / 20s / 2bar- Gygli shirt press) at 21.6N / 5cm, after 10x 95 ° C washing and drying at 17.4N / 5cm.
After fixation with a fix time of 30 s, the release forces were 30.7 N / 5 cm after 10 × 95 ° C. washing and drying at 17.4 N / 5 cm.
This insert fixed as above with 25 s at the same press setting, survived 28 cycles of industrial washing, each with subsequent drying in the tunnel finisher bubble-free.

Beispiel 2Example 2

Ein Gewebe aus 100% Baumwolle vorbehandelt und ausgerüstet für den Einsatz als Hemdeneinlage mit 130 g/m2 Flächengewicht wurde nach dem Doppelpunktverfahren beschichtet. Dabei wurde für den Unterpunkt eine Paste eingesetzt, die mit den üblichen Hilfsstoffen, wie Emulgator, Verdicker und Prozesshilfsmitteln, angesetzt war. Als Polymerkomponenten enthielt die Paste ein Polypropylen mit einem Schmelzpunkt von 160°C und einem MFI-Wert von 50 (g/10 min bei 190°C und 2,16 kg Belastung). Als Streupulver für den Oberpunkt wurde ein Polypropylen mit einem Schmelzpunkt von 160°C und einem MFI-Wert von größer 150 (g/10 min bei 190°C und 2,16 kg Belastung) eingesetzt. Im Beschichtungsprozess wurden 10g Unterpunktpaste aufgetragen und mit 19g Streupulver belegt.A fabric of 100% cotton pre-treated and equipped for use as a shirt insert with 130 g / m 2 basis weight was coated by the double-point method. In this case, a paste was used for the sub-point, which was prepared with the usual excipients, such as emulsifier, thickener and process auxiliaries. As the polymer component, the paste contained a polypropylene having a melting point of 160 ° C and an MFI of 50 (g / 10 min at 190 ° C and 2.16 kg load). As the scattering powder for the upper point, a polypropylene having a melting point of 160 ° C and an MFI value of greater than 150 (g / 10 min at 190 ° C and 2.16 kg load) was used. In the coating process, 10g of sub-grade paste was applied and covered with 19g of scattering powder.

Die derart hergestellte Einlage konnte bei Temperaturen 180°C gegen verschiedene Oberstoffe mit sehr guter Haftung fixiert werden und war gegen eine 95°C Wäsche beständig.The insert thus prepared could be fixed at temperatures of 180 ° C against various outer materials with very good adhesion and was resistant to a 95 ° C laundry.

Die erzielten Trennkräfte waren nach der Fixierung (180°C/20s/2bar- Gygli Hemdenpresse) bei 23,5N/5cm, nach 10x 95°C Wäsche und Trocknung bei 21,2N15cm. Nach der Fixierung mit 30 s Fixierzeit lagen die Trennkräfte bei 25,7N/5cm nach 10x 95°C Wäsche und Trocknung bei 22,4N/5cm. Diese Einlage fixiert wie oben mit 25 sec bei gleicher Presseneinstellung, überstand mehr als 50 Zyklen einer Industriewäsche mit jeweils anschliesender Trocknung im Tunnelfiinischer blasenfrei.The achieved release forces were after fixation (180 ° C / 20s / 2bar- Gygli shirt press) at 23.5N / 5cm, after 10x 95 ° C washing and drying at 21.2N15cm. After fixation with a fixing time of 30 s, the release forces were 25.7 N / 5 cm after 10 × 95 ° C. washing and drying at 22.4 N / 5 cm. This insert fixed as above with 25 sec at the same press setting, survived more than 50 cycles of industrial laundering, each followed by drying in Tunnelfiinischer bubble-free.

Claims (15)

  1. Textile fabric with a coating of two superposed layers of thermoplastic heat-sealing adhesives differing in composition, wherein the second heat-sealing adhesive applied atop the first heat-sealing adhesive has a melting point > 145°C and a DIN53735:1980-10 melt flow index (MFI) of 50 to 200 g/10 minutes (190°C/2.16 kg), characterized in that the ratio of the masses of the first and second heat-sealing adhesives is in the range from 2:1 to 1:3.
  2. Textile fabric according to Claim 1, characterized in that the heat-sealing adhesive used to form the second layer has a melting point > 150°C and an MFI value of 50 to 150 g/10 minutes (190°C/2.16 kg).
  3. Textile fabric according to either Claim 1 or 2, characterized in that the second heat-sealing adhesive is based on polyolefin, polyurethane, polyester or polyamide.
  4. Textile fabric according to Claim 3, characterized in that the second heat-sealing adhesive is based on a polyurethane.
  5. Textile fabric according to Claim 3, characterized in that the second heat-sealing adhesive is based on polypropylene which contains a copolyester of melting point > 145°C and MFI > 60 g/10 minutes (190°C/2.16 kg) in admixture in a ratio of 2 - 98 wt%.
  6. Textile fabric according to Claim 5, characterized in that the second heat-sealing adhesive is based on polypropylene which contains a copolyester of melting point > 160°C and MFI > 140 g/10 minutes (190°C/2.16 kg) in admixture in a ratio of 2 - 98 wt%.
  7. Textile fabric according to any one of Claims 1 to 6, characterized in that the first heat-sealing adhesive is based on a crosslinking polymer or on a thermolastic polymer.
  8. Textile fabric according to Claim 7, characterized in that the first heat-sealing adhesive has an MFI of > 10 g/10 minutes (190°C/2.16 kg).
  9. Textile fabric according to Claim 7, characterized in that the first heat-sealing adhesive has an MFI in the range from > 20 g/10 minutes (190°C/2.16 kg) to 200 g/10 minutes (190°C/2.16 kg).
  10. Textile fabric according to any one of Claims 7 to 9, characterized in that the first heat-sealing adhesive is based on a polyolefin, a polyamide and/or a polyester.
  11. Textile fabric according to Claim 10, characterized in that the first heat-sealing adhesive is based on a polypropylene.
  12. Process for producing the textile fabric according to Claim 1, comprising the steps of:
    a. producing a textile fabric by a textile fabric-forming technique,
    b. applying a layer of a first heat-sealing adhesive atop the textile fabric, and
    c. applying a layer of a second heat-sealing adhesive atop the textile fabric, so that a
    d. layer composed of the second heat-sealing adhesive forms above the layer of a first heat-sealing adhesive, wherein the first and second heat-sealing adhesives used are those according to Claim 1.
  13. Process according to Claim 12, characterized in that a paste of the first heat-sealing adhesive is applied atop the textile fabric in the form of a regular or preferably irregular pattern in a first step, a powder of a second heat-sealing adhesive is sprinkled atop the textile fabric in a second step and remains sticking to the paste in the locations of the first heat-sealing adhesive and is sucked away from the other locations on the surface of the textile fabric, and in that in a subsequent thermal treatment the first and second heat-sealing adhesives are fixed as superposed layers.
  14. Use of textile fabric according to any one of Claims 1 to 11 as an interlining and/or as a lining for high requirements in the care treatment.
  15. Use of textile fabric according to Claim 11 as strengthening lining or reinforcing lining for collars and cuffs of workwear.
EP20060706822 2005-02-12 2006-02-10 Textile fabric with improved finish, production and use thereof Active EP1846612B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06706822T PL1846612T3 (en) 2005-02-12 2006-02-10 Textile fabric with improved finish, production and use thereof

Applications Claiming Priority (2)

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DE200510006470 DE102005006470B4 (en) 2005-02-12 2005-02-12 Textile fabrics with improved coating, their manufacture and use
PCT/EP2006/001192 WO2006084700A1 (en) 2005-02-12 2006-02-10 Textile fabric with improved finish, production and use thereof

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EP1846612A1 EP1846612A1 (en) 2007-10-24
EP1846612B1 true EP1846612B1 (en) 2012-07-25

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US (1) US8603926B2 (en)
EP (1) EP1846612B1 (en)
JP (1) JP5225693B2 (en)
CN (1) CN101120136B (en)
BR (1) BRPI0608240A2 (en)
DE (1) DE102005006470B4 (en)
ES (1) ES2390351T3 (en)
PL (1) PL1846612T3 (en)
PT (1) PT1846612E (en)
WO (1) WO2006084700A1 (en)

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DE102007028263A1 (en) 2007-06-15 2008-12-18 Carl Freudenberg Kg Composite for use in garments
CN101496649B (en) * 2009-02-25 2012-04-25 江苏三泰轻工科技有限公司 Garment lining cloth capable of transferring hot melt adhesive to fabric after pressing and bonding
DE102012002805A1 (en) * 2012-02-15 2013-08-22 Carl Freudenberg Kg Composite of textile fabric and outer fabric
US9056962B2 (en) 2012-10-05 2015-06-16 S.C. Johnson & Son, Inc. Composition for sealing a colorant to a surface, protecting a surface, and providing wear resistance to a surface
US8785549B2 (en) 2012-10-05 2014-07-22 S.C. Johnson & Son, Inc. Composition for sealing a colorant to a surface and/or for protecting a surface
DE102014005819B4 (en) 2014-04-24 2016-08-04 Carl Freudenberg Kg Thermally fixable sheet and method for its production

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WO2004073436A1 (en) * 2003-02-19 2004-09-02 Hänsel Textil GmbH Fixable interlining material, method for the production thereof, and use thereof

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WO2006084700A1 (en) 2006-08-17
CN101120136B (en) 2012-06-13
PL1846612T3 (en) 2012-12-31
CN101120136A (en) 2008-02-06
DE102005006470A1 (en) 2006-08-24
EP1846612A1 (en) 2007-10-24
PT1846612E (en) 2012-09-26
BRPI0608240A2 (en) 2009-11-24
JP5225693B2 (en) 2013-07-03
JP2008529840A (en) 2008-08-07
DE102005006470B4 (en) 2013-12-05
US8603926B2 (en) 2013-12-10
US20080311809A1 (en) 2008-12-18
ES2390351T3 (en) 2012-11-12

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