DE102006001095A1 - Making a sheet material containing waste leather particles, impregnates particles with binder, spreads on support layer, adds textile fibers and needles the material - Google Patents
Making a sheet material containing waste leather particles, impregnates particles with binder, spreads on support layer, adds textile fibers and needles the material Download PDFInfo
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- DE102006001095A1 DE102006001095A1 DE102006001095A DE102006001095A DE102006001095A1 DE 102006001095 A1 DE102006001095 A1 DE 102006001095A1 DE 102006001095 A DE102006001095 A DE 102006001095A DE 102006001095 A DE102006001095 A DE 102006001095A DE 102006001095 A1 DE102006001095 A1 DE 102006001095A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/06—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/16—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer formed of particles, e.g. chips, powder or granules
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/30—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being formed of particles, e.g. chips, granules, powder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
- B32B9/025—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch comprising leather
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B9/047—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material made of fibres or filaments
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- 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
- D06N7/00—Flexible sheet materials not otherwise provided for, e.g. textile threads, filaments, yarns or tow, glued on macromolecular material
- D06N7/0005—Floor covering on textile basis comprising a fibrous substrate being coated with at least one layer of a polymer on the top surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/02—Composition of the impregnated, bonded or embedded layer
- B32B2260/025—Particulate layer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
- B32B2260/04—Impregnation, embedding, or binder material
- B32B2260/048—Natural or synthetic rubber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/06—Vegetal fibres
- B32B2262/062—Cellulose fibres, e.g. cotton
- B32B2262/065—Lignocellulosic fibres, e.g. jute, sisal, hemp, flax, bamboo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2264/00—Composition or properties of particles which form a particulate layer or are present as additives
- B32B2264/08—Animal particles, e.g. leather
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/554—Wear resistance
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2471/00—Floor coverings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2471/00—Floor coverings
- B32B2471/04—Mats
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2607/00—Walls, panels
- B32B2607/02—Wall papers, wall coverings
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- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
Landscapes
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Textile Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Nonwoven Fabrics (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Herstellung eines lederhaltigen Flächengebildes gemäß Oberbegriff des Anspruches 1 und ein damit hergestelltes lederhaltiges Flächengebilde.The The invention relates to a method for producing a leather-containing sheet according to the generic term of claim 1 and a leather-made sheet produced therewith.
Stand der Technikwas standing of the technique
Natürliches Leder ist ein teures Naturmaterial, welches nur begrenzt verfügbar ist, weshalb schon lange versucht wird, ein naturleder-ersetzendes und naturleder-ähnliches Flächengebilde künstlich herzustellen.natural Leather is an expensive natural material, which is only limited available, why has been tried for a long time, a natural leather-replacing and natural leather-like sheet artificially manufacture.
Aus
der
Aus
der
Hier werden also Lederfasern unmittelbar mit Kunststoff-Materialien gemischt und der Halt der Lederfasern wird nur durch die punktweise Verbindung der Fasern erhalten.Here So leather fibers are mixed directly with plastic materials and the hold of the leather fibers is only by the pointwise connection of Obtained fibers.
Aus
der weiterhin bekannten
Auch bei diesem Faserkunstleder werden die Fasern nur durch das Bindemittel zusammengehalten.Also in this fiber artificial leather, the fibers are only through the binder held together.
Bei den beiden zuletzt genannten Verfahren wird das Leder soweit zerkleinert, bis nur mehr Fasern vorhanden sind, d.h., die Struktur der ursprünglichen Lederabfälle wird zerstört.at the two latter methods, the leather is comminuted so far, until there are only more fibers, that is, the structure of the original one leather waste is destroyed.
Erfindunginvention
Der Erfindung liegt deshalb die Aufgabe zugrunde ein gattungsgemäßes Verfahren zur Herstellung eines lederhaltigen Flächengebildes und dieses Flächengebilde selbst zu schaffen. wobei das Verfahren einfach und preiswerter durchzuführen sein soll und die damit erhaltenen lederhaltigen Flächengebilde gegenüber ähnlichen bekannten Flächengebilden fester in der Struktur sind.Of the The invention is therefore the object of a generic method for producing a leather-containing sheet and this sheet to create oneself. the process being simple and cheaper perform should be and the resulting leather-containing fabrics against similar ones known fabrics solid are in the structure.
Diese Aufgabe wird durch ein Verfahren gelöst, welches im Anspruch 1 beschrieben ist. Ein erfindungsgemäßes lederhaltiges Flächengebilde geht aus dem Anspruch 23 hervor.These The object is achieved by a method which is described in claim 1 is. An inventive leather-containing sheet is apparent from the claim 23.
Das erfindungsgemäße Verfahren zur Herstellung eines lederhaltigen Flächengebildes mit einer Deckschicht und mit einer Trägerschicht, zeichnet sich dadurch aus, dass mit einem Binder getränkte, feine Lederteilchen als Deckschicht auf die Trägerschicht gebracht werden, auf die Deckschicht textile Fasern gebracht werden, das lederhaltige Flächengebilde mittels der textilen Fasern vernadelt wird und der Binder zum Abbinden der Lederteilchen mit der Trägerschicht gebracht wird.The inventive method for producing a leather-containing fabric with a cover layer and with a carrier layer, is characterized by the fact that soaked with a binder, fine Leather particles are brought as a cover layer on the carrier layer, on the top layer textile fibers are brought, the leather-containing sheet by means of the textile fibers is needled and the binder for setting the leather particles with the carrier layer is brought.
Die mit Binder getränkten Lederteilchen werden auf der Trägerschicht aufgetragen und dort z.B. mit einem Rakel, mit Abstreifern dosiert oder sie werden über eine Walzenzuführung aufgetragen.The soaked with binder Leather particles are on the carrier layer applied and there, e.g. with a squeegee, dosed with scrapers or they will over a roller feeder applied.
Mit diesem Verfahren ist nun eine Möglichkeit gefunden worden, Lederreste zu einem neuartigen lederhaltigen Flächengebilde zu verarbeiten. Als Lederteilchen können dabei verschiedene Lederabfallstücke verwendet werden, insbesondere solche, die als Reststücke bei der Herstellung von neuen Lederprodukten anfallen. Als feine Lederteilchen werden dabei bevorzugt Lederspäne angesehen, die zwischen 0,5 und 3 mm breit und zwischen 1 und 20 mm lang sind. Um die Konsistenz des auf die Deckschicht aufzubringenden, Binder getränkten Materials einzustellen, kann zu diesen Lederspänen noch Lederpulver zugegeben werden.With This method is now a possibility found leather remains to a novel leather-containing sheet to process. As leather particles different leather waste pieces can be used especially those which are used as remnants in the production of incurred new leather products. As fine leather particles are doing prefers leather chips considered to be between 0.5 and 3 mm wide and between 1 and 20 mm are long. In order to increase the consistency of the coating applied to the top layer, Binder soaked To adjust material, leather powder can be added to these leather chips become.
Durch das Vernadeln der Deckschicht mit den textilen Fasern wird die Festigkeit des Flächengebildes verstärkt, denn es wird eine zusätzliche mechanische Bindung der Deckschicht in sich und an die Trägerschicht geschaffen.By The needling of the cover layer with the textile fibers becomes the strength of the fabric strengthened because it will be an extra mechanical bonding of the cover layer in itself and to the carrier layer created.
Zweckmäßigerweise wird das Vernadeln des lederhaltigen Flächengebildes vor dem Abbinden des Binders durchgeführt. Dabei kann das Vernadeln strukturbildend durchgeführt werden, wobei z.B. das Flächengebilde streifenförmig entweder gleichzeitig unterschiedlich vernadelt wird oder das Flächengebilde nach einem ersten Vernadeln nochmals, allerdings dann streifenförmig vernadelt wird. Dieses zweite Vernadeln kann unmittelbar nach dem ersten Vernadeln oder auch nach einem der im Folgenden noch beschriebenen weiteren Verfahrensschritte durchgeführt werden.Conveniently, the needling of the leather-containing fabric before setting the binder performed. In this case, the needlepunching structure-making be performed, for example, the sheet is strip-shaped needles either different at the same time or the fabric after a first needling again, but then is needled strip. This second needling can be carried out immediately after the first needling or after one of the further process steps to be described below.
Das lederhaltige Flächengebilde kann kalandert werden, wobei beim Kalandern das Abbinden des Flächengebildes, vorzugsweise unter Zuführung von Wärme, erfolgt und das Kalandern bevorzugt zumindest nach dem ersten Vernadeln erfolgt.The leather-containing fabrics can be calendered, whereby in calendering the setting of the fabric, preferably with the supply of Warmth, takes place and calendering preferably at least after the first needling he follows.
Beim Kalandern kann die freie Oberfläche der Deckschicht strukturiert werden, insbesondere wenn dabei geprägte Kalanderwalzen verwendet werden.At the Calendering can be the free surface of the Covering be patterned, especially when embossed calender rolls be used.
Als feine Lederteilchen werden bevorzugt Lederpulver, feine Lederspäne, kleine Lederstückchen oder kleine Lederstreifen verwendet, die zweckmäßigerweise aus ungebrauchten Lederresten insbesondere aus der Lederverarbeitung stammen. Als feine Lederteilchen, mit Ausnahme des Lederpulvers, werden dabei bevorzugt solche mit einer Breite zwischen 0,5 und 3 mm verwendet, deren Länge zwischen 1 und 20 mm betragen kann.When fine leather particles are preferred leather powder, fine leather chips, small pieces of leather or used small strips of leather, which expediently unused Leather remnants come especially from the leather processing. As fine Leather particles, with the exception of the leather powder, are preferred those with a width between 0.5 and 3 mm are used, whose length is between 1 and 20 mm can be.
Die feinen Lederteilchen werden vor dem Tränken mit dem Binder farblich sortiert und/oder gefärbt. So kann dem fertigen Flächengebilde eine farblich gestaltete Oberfläche gegeben werden.The Fine leather particles are colored before soaking with the binder sorted and / or colored. So can the finished fabric a color-coordinated surface are given.
Auch der Binder selbst kann gefärbt werden, so dass dessen Farbe auch zur Musterung des lederhaltigen Flächengebildes ausgenutzt werden kann.Also the binder itself can be dyed so that its color is also used to pattern the leathery sheet can be exploited.
Nach einer besonderen Ausführungsform der Erfindung werden die feinen Lederteilchen vor oder nach dem Tränken mit dem Binder mit anderen festen Bestandteilen gemischt.To a particular embodiment of the Invention, the fine leather particles before or after soaking with the binder mixed with other solid ingredients.
So werden die feinen Lederteilchen vor dem Aufbringen auf die Trägerschicht mit Fasern, insbesondere Kurzfasern, gemischt, um der Deckschicht eine mechanische Verstärkung zu geben. Dabei können synthetische Fasern, wie PES- oder PA-Bindefasern oder andere Kunststofffasern und/oder natürliche Fasern, wie Woll-, Baumwoll-, Leinen-, Flachs- oder Jutefasern beigemischt werden.So become the fine leather particles before application to the carrier layer with fibers, especially short fibers, mixed to form a cover layer mechanical reinforcement to give. It can synthetic fibers, such as PES or PA binder fibers or other plastic fibers and / or natural fibers, such as wool, cotton, linen, flax or jute fibers added become.
Die auf die Deckschicht gebrachten, zu vernadelnden, textilen Fasern werden in Form eines losen Faservlieses, eines leicht gebundenen Vliesstoffes oder einem Vlies aus Schnittfasern verschiedener Länge oder Endlosfasern aufgebracht. Dabei sollte die Verteilung der Fasern über die Fläche der Deckschicht gleichmäßig sein, insbesondere sollte die Dicke dieser Faser-Schicht gleichmäßig sein.The placed on the cover layer to be needled, textile fibers be in the form of a loose fiber fleece, a lightly bound Nonwoven fabric or a nonwoven made of chopped fibers of different lengths or Applied endless fibers. The distribution of the fibers over the area be even in particular, the thickness of this fiber layer should be uniform.
Gemäß einer besonderen Ausführungsform des Verfahrens sind die aufgebrachten Faservliese so fein, dass sie nach dem Vernadeln optisch fast nicht mehr an der Oberfläche der Deckschicht erkennbar sind. Dies kann insbesondere dann der Fall sein, wenn die zu vernadelnden, textilen Fasern eine Farbe aufweisen, die in etwa der Farbe der feinen Lederteilchen entspricht. Andererseits können auf der Oberfläche auch so viele Fasern angeordnet sein, dass die Oberfläche durch diese Fasern besonders abriebfest gemacht wird und/oder es kann durch gezielte Färbung dieser Fasern die Oberflächenoptik des lederhaltigen Flächengebildes beeinflusst werden.According to one particular embodiment of the Procedure, the applied fiber webs are so fine that they after needling almost no longer visibly on the surface of the Cover layer can be seen. This may be the case in particular if the textile fibers to be needled have a color, which corresponds approximately to the color of the fine leather particles. on the other hand can on the surface Also so many fibers can be arranged that the surface passes through These fibers are made particularly resistant to abrasion and / or it can through targeted coloring of these fibers the surface optics of leather-containing fabric to be influenced.
Die länglichen, mit einem Binder getränkten, feinen Lederteilchen können ausgerichtet auf die Trägerschicht gebracht werden. So können sie alle parallel zu einander ausgerichtet sein, es können aber auch zwei übereinander liegende Lagen aufgebracht werden, wobei die Ausrichtung der Lederteilchen einer Lage senkrecht zu der Ausrichtung der Lederteilchen der anderen Lage ist. Es ergibt sich dann nach dem Abbinden des Binders eine stärkere Festigkeit des Flächengebildes.The elongated, soaked with a binder, fine Leather particles can aligned with the carrier layer to be brought. So can they can all be parallel to each other, but they can as well two on top of each other lying layers are applied, the orientation of the leather particles a position perpendicular to the orientation of the leather particles of the other Location is. It then results after the binding of the binder one more Strength of the fabric.
Als Binder wird vorzugsweise eine Kunststofflösung oder Kunststoffdispersion verwendet, mit der die Lederteilchen getränkt werden. Dabei kann es sich z.B. um einen Natur- oder Syntheselatex, wie einen SBR-Latex oder Acryl-Latex oder PU handeln.When Binder is preferably a plastic solution or plastic dispersion used, with which the leather particles are soaked. It can be e.g. to a natural or synthetic latex, such as a SBR latex or Acrylic latex or PU act.
Gemäß einer besonderen Ausführungsform des Verfahrens wird beim Vernadeln und/oder Kalandern aus den feinen Lederteilchen austretender Binder abgeführt und wieder verwendet wird. Die Lederteilchen werden in der Regel ohne viel Binderüberschuss getränkt, so dass sich die getränkten auf den Träger aufzubringenden Lederteilchen relativ trocken anfühlen, beim Vernadeln und Kalandern wird jedoch auf das zu bearbeitende Flächengebilde ein Druck ausgeübt, wodurch ein Teil des Binders und zumindest ein Teil des benutzten Wassers wieder aus den Lederteilchen austritt.According to one particular embodiment of the Process is the needlepunching and / or calendering from the fine Leather particles leaking binder removed and reused. The leather particles are usually without much binder surplus impregnated, so that the soaked on the carrier To be applied leather particles feel relatively dry, when Needling and calendering, however, is done on the fabric to be processed put pressure whereby a part of the binder and at least a part of the used Water exits the leather particles again.
Vorzugsweise wird auf die Oberseite der Deckschicht des vernadelten Flächenbilde eine weitere Lage aus einem Kunststoffmaterial aufgetragen oder eingebracht, die das Gebilde verstärkt. Dieser zusätzliche Auftrag kann als Film, als abzubindendes Pulver aufgetragen oder auch aufgesprüht werden, wobei dieser Auftrag vor oder nach dem Vernadeln, vor oder nach dem Kalandern aufgetragen werden kann.Preferably is on top of the top layer of the needled surface another layer of a plastic material applied or introduced, which reinforces the structure. This additional Application can be applied as a film, as a powder to be bonded or also sprayed on this order before or after needling, before or can be applied after calendering.
Als Trägerschicht wird vorzugsweise ein Gelege, ein Gewebe, ein Spunbond oder ein Non-woven verwendet und dieser Träger ist insbesondere ein Juteträger.When backing is preferably a scrim, a tissue, a spunbond or a Non-woven used and this carrier is in particular a Juteträger.
Für die Herstellung des lederhaltigen Flächengebildes wird vorzugsweise so viel Material verwendet, dass das lederhaltige Flächengebilde nach dem Kalandern und/oder Abbinden des Binders eine Dicke von 1 bis 5 mm aufweist.For the production of the leather-containing fabric is preferably used so much material that the leathery sheet after calendering and / or binding of the binder, a thickness of 1 to 5 mm.
Unter Schutz gestellt ist auch ein insbesondere nach dem vorbeschriebenen Verfahren hergestelltes, lederhaltiges Flächengebilde mit einer Deckschicht und einer Trägerschicht, die miteinander vernadelt sind, wobei die Deckschicht mit einem Binder getränkte und durch diesen und die Vernadelungs-Fasern miteinander verbundene feine Lederteilchen und textile Fasern aufweist.Under Protection is also a particular after the above Processed, leather-containing fabric with a cover layer and a carrier layer, which are needled together, wherein the cover layer with a Binder soaked and interconnected by it and the needling fibers having fine leather particles and textile fibers.
Dieses lederhaltige Flächengebilde kann teilweise wie das natürlich Leder weiter verarbeitet werden, insbesondere kann es gewachst, poliert, wie Wildleder gerauht werden.This leather-containing fabrics Partially like that, of course Leather can be processed further, in particular it can be waxed, Polished as suede are roughened.
Die Vernadelung erfolgt z.B. mit feineren Filznadeln in Wirranordnung, in Streifenanordnung oder in Musteranordnung. Wegen des verwendeten Binders reicht oftmals eine Vernadelung mit weniger Nadeln oder mit einer größeren Vorschubgeschwindigkeit des Flächengebildes gegenüber dem Nadelstuhl aus. Eine dichtere Vernadelung ergibt besonders feste Produkte.The Needling takes place e.g. with finer felting needles in wirranorder, in stripe arrangement or in pattern arrangement. Because of the binder used often a needling with fewer needles or with one greater feed rate of the fabric across from out of the needle chair. A denser needling results in particularly strong Products.
Weitere Einzelheiten der Erfindung ergeben sich aus den Unteransprüchen und aus einem im Folgenden beschriebenen Ausführungsbeispiel.Further Details of the invention will become apparent from the dependent claims and from an embodiment described below.
Ausführungsbeispielembodiment
Ein lederhaltiges Flächengebilde weist eine Trägerschicht und eine Deckschicht auf. Die Trägerschicht besteht aus einem Gewebe aus Jute.One leathery fabric has a carrier layer and a cover layer. The carrier layer consists of a fabric of jute.
In der Deckschicht sind feine Lederteilchen enthalten, die bei der Herstellung mit Kurzfasern gemischt und in einem Binder aus einem Latex getränkt wurden bevor sie als Gemisch auf die Trägerschicht aufgebracht wurden.In The top layer contains fine leather particles that are used in the Preparation mixed with short fibers and in a binder of one Latex were soaked before being applied as a mixture to the carrier layer were.
Nach dem Aufbringen des Gemisches aus Fasern und getränkten Lederteilchen auf die Trägerschicht wurden auf die Oberfläche der Deckschicht aktiv nadelfähige Fasern gebracht und das gesamte Flächengebilde wurde mittels dieser Fasern vernadelt, wobei die Vernadelungs-Fasern durch die Deckschicht hindurch in die Trägerschicht genadelt wurden.To the application of the mixture of fibers and impregnated leather particles on the backing were on the surface the cover layer actively needle-able Fibers were placed and the entire fabric was removed by means of this Needled fibers, with the needling fibers through the cover layer through into the carrier layer were needled.
Nach dem Vernadeln wurde das lederhaltige Flächengebilde unter Zuführung von Wärme kalandert, wobei der Binder abgebunden wurde.To Needling was the leather-containing fabric under supply of Calanders heat, whereby the binder was tied off.
Claims (27)
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DE102006001095A DE102006001095A1 (en) | 2006-01-09 | 2006-01-09 | Making a sheet material containing waste leather particles, impregnates particles with binder, spreads on support layer, adds textile fibers and needles the material |
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WO2023006924A1 (en) | 2021-07-28 | 2023-02-02 | Revoltech GmbH | Method for producing a vegetable planar textile structure |
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