DE1619275A1 - leatherette - Google Patents

leatherette

Info

Publication number
DE1619275A1
DE1619275A1 DE19671619275 DE1619275A DE1619275A1 DE 1619275 A1 DE1619275 A1 DE 1619275A1 DE 19671619275 DE19671619275 DE 19671619275 DE 1619275 A DE1619275 A DE 1619275A DE 1619275 A1 DE1619275 A1 DE 1619275A1
Authority
DE
Germany
Prior art keywords
artificial leather
resin
leather according
intermediate layer
natural
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DE19671619275
Other languages
German (de)
Inventor
Tadayo Kaneko
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nihon Leather Kogyo K K
YASHIOMACHI SAITAMA
Original Assignee
Nihon Leather Kogyo K K
YASHIOMACHI SAITAMA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nihon Leather Kogyo K K, YASHIOMACHI SAITAMA filed Critical Nihon Leather Kogyo K K
Publication of DE1619275A1 publication Critical patent/DE1619275A1/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • D06N3/126—Poly-amino acids, e.g. polyglutamates
    • 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
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • 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
    • D06N3/0002—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate
    • D06N3/0015—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the substrate using fibres of specified chemical or physical nature, e.g. natural silk
    • D06N3/0018—Collagen fibres or collagen on fibres
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
    • Y10T428/24438—Artificial wood or leather grain surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249982—With component specified as adhesive or bonding agent
    • Y10T428/249984—Adhesive or bonding component contains voids
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2904—Staple length fiber
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2904—Staple length fiber
    • Y10T428/2909—Nonlinear [e.g., crimped, coiled, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31551—Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
    • Y10T428/31558—Next to animal skin or membrane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31909—Next to second addition polymer from unsaturated monomers
    • Y10T428/31928—Ester, halide or nitrile of addition polymer
    • 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
    • Y10T442/2008—Fabric composed of a fiber or strand which is of specific structural definition
    • 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
    • Y10T442/2139—Coating or impregnation specified as porous or permeable to a specific substance [e.g., water vapor, air, etc.]

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
  • Laminated Bodies (AREA)

Description

NIhon Leather Kogyo Kabushiki-Kalsha, Mlnami-Saltama-Gun/Japan Hisao, Sato, Tokyo / JapanNIhon Leather Kogyo Kabushiki-Kalsha, Mlnami-Saltama-Gun / Japan Hisao, Sato, Tokyo / Japan

Kunstlederleatherette

Die vorliegende Erfindung bezieht sich auf ein Kunstleder, welches durch Aufbringen eines Polyaminosäuref11ms auf die eine oder auf beide Selten eines als Grundmaterial dienenden ungewebten Stoffes hergestellt wird, und das aus Naturlederfasern und Natur- oder Synthesefasern, verbunden durch eine Zwischenschicht aus einem Acrylharz, Polyurethanharz oder einem ähnlichen harzartigen Material zusammengesetzt 1st. The present invention relates to an artificial leather which is produced by applying a polyamino acid film to one or both of a nonwoven fabric serving as a base material, and which is made of natural leather fibers and natural or synthetic fibers, connected by an intermediate layer of an acrylic resin, polyurethane resin or composed of a similar resinous material .

1Q9923/'2Q791Q9923 / '2Q79

Bekanrfilch wurden bis jetzt bereite die verschiedenartigsten Untersuchungen durchgeführt, sowie verschiedene Vorschläge vorgebracht mit dem Zweck Kunstleder herzustellen, welches die verschiedenen guten Eigenschaften des Naturleders aufweist.The most varied of types have been recognized up to now Investigations carried out, as well as various suggestions put forward with the purpose of producing artificial leather, which demonstrates the various good properties of natural leather having.

Das sogenannte Kunstleder, welches durch Aufbringen eines Besohiohtungsfllms aus Vlnylchlorldharz, Polyurethanharz, Nylonharz oder einem ähnlichen harzartigen Material auf einen gewöhnlichen ungewebten Stoff oder auf ein Florgewebe oder auf einen gewirkten Stoff hergestellt werden, ist aber dem Naturleder in großem Ausmaß bezüglich der Widerstandsfähigkeit gegenüber Kälte und Hitze,der Luftdurchlässigkeit, der Feuehtigkeltsabgabe und dem Griff oder der Textur unterlegen, Weiterhin hängen die charakteristischen Elgensohaften von der Natur des verwendeten Grundmaterials ab.The so-called artificial leather, which is produced by applying a coating made of vinyl chloride resin, polyurethane resin, Nylon resin or a similar resinous material an ordinary non-woven fabric or on a pile fabric or on a knitted fabric is but natural leather to a large extent in terms of resistance to cold and heat, air permeability, inferior to the fire effect and the handle or texture, furthermore the characteristic ones hang Elgensohaften from the nature of the basic material used away.

Gemäß der vorliegenden Erfindung wird ein Kunstleder, welches verschiedene, denjenigen des Naturleders ähnelnde Eigenschaften aufweist, und das insbesondere bezüglich der Feuchtigkeitsaufnähme und der Luftdurchlässigkeit mit Naturleder vergleichbar ist und sich von den üblichen Kunstlederarten vollkommen unterscheidet, dadurch hergestellt, daßAccording to the present invention, an artificial leather which has various properties similar to those of natural leather, in particular with regard to the Moisture absorption and air permeability is comparable to natural leather and differs from the usual types of artificial leather completely different, produced in that

109823/2079 B "3-109823/2079 B "3-

als Grundmaterial ein aus einem Gemisch von Natur- oder Synthesefasern und einem faserartigen aus dem Gorium von Naturleder oder Haut gewonnenen Kollagen hergestellter, ungewebter Stoff verwendet wird und darauf als Schiebt, welche der Kornsohicht von Naturleder entspricht, eine Polyamlnosäureharζschicht aufgebracht wird.as a base material a mixture of natural or synthetic fibers and a fiber-like one from the Gorium of Natural leather or skin-derived, non-woven fabric made from collagen is used and slides onto it as what corresponds to the grain layer of natural leather, a polyamino acid hard layer is applied.

Im folgenden soll die vorliegende Erfindung anhand der Zeichnungen näher erläutert werden,In the following the present invention is based on the Drawings are explained in more detail,

Fig.l, Flg.2 und Fig.3 stellen vergrößerte Querschnitte der gemäß der vorliegenden Erfindung hergestellten Kunstleder dar.Fig.l, Flg.2 and Fig.3 represent enlarged cross-sections of the artificial leather produced according to the present invention.

In den Figuren 1st 1 das Grundmaterial ©d®r Stubsfemtg welches aus einem Gemisch von 20 bis 5ö % Natur·» oder Synthese» fasern, wie Baumwolle? Nylon=» od®s· Folyesterf&sera9 uad 50 bis 80 % eines faserartigen Kollagen« alt ®ia©r Faserlänge von 5 bis 16 cm unter Verwendung eisies geeignetem liadeisit» tels hergestellt wurde und das eine Bl©k® it®q O8J fei© E9O um aufweist. . 2 stellt eine PolyurefefeGsafeferzselai©!!^ ait einer Dicke von 0,01 bis 1mm dar, n©X©feo &uf ias 1 aufgebracht ist. Die Aorylhars@@hi©teife 3 wig-kfe rungssohioht» H- stellt eine Sohishfe
dar. 5 ist ein 0,01 bis 0,7 mm steife©? FlIn0 w einem Copolymeran eines ^ainogam^QtoffgQo oife harz oder eiaeo AcrylharzIn the figures, 1 is the basic material of the Stubsfemtg which consists of a mixture of 20 to 50 % natural or synthetic fibers, such as cotton? Nylon = »od®s · Folyesterf & sera 9 uad 50 to 80 % of a fiber-like collagen« alt ®ia © r fiber length of 5 to 16 cm was produced using a suitable liadeisit »and that a Bl © k® it®q O 8 J fei © E 9 O um . . 2 shows a polyurefeGsafeferzselai © !! ^ a with a thickness of 0.01 to 1mm, to which © X © feo & uf ias 1 is applied. The Aorylhars @@ hi © teife 3 wig-kfe rungssohioht » H- provides a Sohishfe
5 is a 0.01 to 0.7 mm rigid ©? FlIn 0 w a copolymer of a ^ ainogam ^ QtoffgQo oife resin or eiaeo acrylic resin

109823/207109823/207

Die oben beschriebenen Strukturen können durch verschiedene Verfahren erzeugt werden. Einige dieser Verfahren sollen In den nachstehenden Beispielen angegeben werden.The structures described above can be implemented by various Process are generated. Some of these procedures are intended to be given in the examples below.

Beispiel 1example 1

Auf die eine Oberfläche eines als Grundmaterial dienenden Gewebes aus ungewebtem Stoff, wurde durch Übertragungsbeschlohtung oder durch Beschichtung mit einem Abstreifmesser eine Polyurethanharzlösung entweder In Äthylaoetat oder in einem Gemisch aus Äthylaoetat und Toluol aufgebrachte Das so beschichtete Gewebe aus ungewebtem stoff wurde unmittelbar darauf in einen Trockner überführt, darin 3 bis 5 Minuten auf 100 bis 150° C erhitzt und anschließend zu einer Bolle aufgewickelt, welche dann zur Vernetzung 2 bis 4 Tage stehengelassen wurde·On one surface of a serving as a base material Fabric made of non-woven material, was made by transfer bracing or by coating with a doctor blade a polyurethane resin solution either In ethyl acetate or in A mixture of ethyl acetate and toluene applied. The coated fabric made of non-woven fabric was immediately then transferred to a dryer for 3 to 5 minutes heated to 100 to 150 ° C and then to a Bolle wound up, which was then left to stand for 2 to 4 days for crosslinking

Dieses Gewebe aus einem nlohtgewebtem Stoff,wurde ansohlieesend mittels eines Abstreifmessers oder eines Umkehrwalzenbesehichters mit einer Lösung eines aus 80 Teilen Butylaorylat und 20 Teilen eines Gemisches aus Acrylnitril und Acrylamid bestehenden Copolymeren in Toluol oder in Äthylaoetat beschichtet und daramfhiix J bis 5 Minuten bei 50 bis 60° C getrocknet* Dann wurd® das Gewebe mit einer Lösung von PoIy(M-oarboxy-glut»mat) als Aminosäureharz in Äthylendlohlorid oder Dioxan f3@eehi©hfc@t und daran anschließend 3 bis 5 Minu-This fabric, made of a non-woven material, was coated with a solution of a copolymer consisting of 80 parts of butyl aorylate and 20 parts of a mixture of acrylonitrile and acrylamide in toluene or in ethyl acetate and then coated for J up to 5 minutes at 50 to 60 ° C * Then the fabric was treated with a solution of poly (M-oarboxy-glut »mat) as an amino acid resin in ethylene dichloride or dioxane f3 @ eehi © hfc @ t and then 3 to 5 minutes

1088Ϊ3/20791088Ϊ3 / 2079

ten auf 120 bis 130° 0 erhitzt. Obwohl das so erhaltene Produkt In einigen Eigenschaften ziemlich dem Naturleder ähnlich war, wurde es Jedoch noch zur Verbesserung der äußeren Erscheinung oberflächlich bearbeitet·th heated to 120 to 130 ° 0. Although the so received Product In some properties, quite like natural leather was similar, however, it was superficially worked on to improve the external appearance.

Beispiel 2Example 2

Ein Gewebe aus ungewebtem Stoff wurde mit einer Lösung des Polyurethanharzes des Beispiels 1 in Dimethylformamid beschichtet und anschließend in Wasser zur Extraktion des Lösungsmittels eingeweicht, wodurch eine poröse Polyuretha«- harzschicht 2a erhalten wurde* Der s© beschichtet® Stoff wurde wie in Beispiel 1 behandelt.A fabric made of non-woven fabric was coated with a solution of the polyurethane resin of Example 1 in dimethylformamide and then soaked in water to extract the solvent, whereby a porous polyurethane «- resin layer 2a was obtained * The s © coated® fabric was treated as in example 1.

Das dabei erhaltene Produkt hatte die gleiche Luftdurchläs-The product obtained had the same air permeability

besaß elgkeit und Feuchtigkeitsaufnähme wie Naturleder. Zuzüglich /possessed elgkeit and moisture absorption like natural leather. Plus / der als Grundmaterial verwendete ußgewebte Stoff die Fähigkeit 16 bis 1? % Feuchtigkeit zu speichern, so dal das Produkt "atmen" konnte und bei Verwendung für Schuhe und Kleidungsstücke eine lederartige Griffigkeit besaß, ohne daß Rißbildung auftrat und es muffig wurde.the woven fabric used as the base material has the ability 16 to 1? To store% moisture, so that the product could "breathe" and, when used for shoes and clothing, had a leather-like feel without cracking and becoming musty.

BeiaptAl 3BeiaptAl 3

Auf «in genepptes Grundmaterial 1 wurde zur Bildung eines als Bindere und Zwischenschicht dienend«» BesehloMungsfilmeOn «in ripped base material 1 was used to form an as Serving binder and intermediate layer «» BesehloMungsfilme

- BAD
V:, ' - 6 -- BATH
V :, '- 6 -

109813/2979109813/2979

— O —- O -

mit 0,1 mm Stärke direkt ein- oder zweimal eine Acrylharz-18sung aufgebracht« Saraufhin wurde zur Bildung der obersten Schicht 5 ein Oopolymeres eines AKinosäureharzes mit einem Fo Iy ur et hanharz oder einem Acrylharz aufgebracht. Auf diese Weise wurde ein Kunstleder mit einer besonderen Griffigkeit erhalten.An acrylic resin solution with a thickness of 0.1 mm was applied directly once or twice. In order to form the top layer 5, an oopolymer of an acino acid resin was also used a Fo Iy ur et hanharz or an acrylic resin applied. on in this way an artificial leather with a special grip was obtained.

Kurz gesagt besteht das Kunstleder gemäß der vorliegendenIn short, there is artificial leather according to the present invention

Erfindung aus einest solchen, welches dadurch gewonnen wird, daß man künstlich ein verfilmtes Gefüge eines faserartigen ohrcaiertan Kollageis» herstellt, welches durch Behandeln des faserartigen Kollagens von Nattzrhaut mit Chromsalzen la Fora eines ung@webt<sn Stoffes erhältlich ist und darauf einen 8®sehichtimgsfilm aus einer Polyamino säure aufbringt. Di® Misi'kffiftle und Vorteile des erfindungsgemäßen Kunstleders eind folgendesInvention from one such, which is obtained by that one artificially a filmed structure of a fibrous ohrcaiertan collage »produces which by treating of fibrous collagen from Nattzrhaut with chromium salts la Fora of an ung @ weave <sn fabric is available and on it an 8® coating film made of a polyamino acid applies. Di® Misi'kffiftle and advantages of the artificial leather according to the invention and the following

1«) Der folyaninof ils als solcher weist die äußere Erscheinungsform von , ifaturleder, eine hohe Festigkeit und geringe Dehnbarkeit auf, so dafi er «Ine darauf erzeugte Oberflächenstruktur und einen eleganten Glanz lange Zelt aufrecht erhält{ d»h. die !«derartigen Eigenschaften werden lange Zelt beibehalten.1 «) The folyaninof ils as such has the external appearance of, ifaturleder, high strength and little extensibility, so that he produced "ine" on it Surface structure and an elegant sheen long tent maintains {d »h. who! «become such properties Maintain a long tent.

2.) Es weist eine geringe Feuchtigkeitsaufnähme oder Hygroskopizität auf, so daß es während aller Jahreszeiten •in· warm«, weiche und trockene Griffigkeit besitzt.2.) It has a low moisture absorption or Hygroscopicity, so that it has a "warm", soft and dry grip during all seasons.

BAD ORiGINALBAD ORiGINAL

1098337207810983372078

18192751819275

Die Eigenschaften des erfindungsgemäßen Kunstleders In Zusammenwirkung mit den Eigenschaften des Grundmaterialβ sind ausgezeichnete Luftdurchlässigkeit9 Wasserdampfdurchlässigkeit und Beständigkeit gegenüber Witterungseinflüssen.The properties of the artificial leather according to the invention in conjunction with the characteristics of the Grundmaterialβ are excellent air permeability 9 water vapor permeability and resistance to weathering.

Die Luft- und Feuchtigkeitsdurehlasaigkeifc des erfindungsgemäßen Produkts können bis zu einem bestimmten Ausmaße frei variiert werden. Ferner besitzt das Produkt eine gute Verarbeltbarkeit und kana ofens© SsSiwierigkoifeea genäht und gebügelt werden, wobei ©s die ihm TerXishgne Oberflächenstruktur nicht verliert» Diss bedeutet, daß das erfisdungsgemäße Kunstleder wie jed®r beliebige textilstoff gehandhabt und behandelt worden kaaia und so bequem'mit niedrigen Kosten zu lndprodiabten ¥©raäkt werdenThe air and moisture permeability of the product according to the invention can be varied freely up to a certain extent. In addition, the product is easy to process and can be sewn and ironed in the oven, without losing its natural surface structure. Diss means that the artificial leather according to the invention has been handled and treated like any textile material, and so comfortably low cost to indigenous people ¥ © raäkt

tm M *> tm M *>

109823-/2079 "«ad op»o?hal109823- / 2079 "" ad op "o? Hal

Claims (1)

PatentansprücheClaims 1.) Kunstleder, bestehend aus einem Grundmaterial oder einem Substrat aus einem ungewebten Stoff mit einem verfilzten Gefüge eines Gemisches aus Kollagenfasern eines Naturleders und anderen Fasern und einem Beschichtungsfilm aus einer Polyaminosäure oder einem Copolymeren einer PoIyaminosäure mit einem anderen synthetischen Harz, wobei die Schichten durch eine aus einem Polyurethanharz und/oder einem Acrylharz bestehende Zwischenschicht miteinander verbunden sind, 1.) Synthetic leather, consisting of a basic material or a substrate made of a non-woven fabric with a matted structure of a mixture of collagen fibers Natural leather and other fibers and a coating film from a polyamino acid or a copolymer of a polyamino acid with another synthetic resin, the layers by one of a polyurethane resin and / or an intermediate layer consisting of an acrylic resin are bonded together, 2.) Kunstleder nach Anspruch 1, dadurch gekennzeichnet, dafi der Beschichtungsfilm aus Poly(N-carboxyglutamat) besteht. 2.) artificial leather according to claim 1, characterized in that the coating film consists of poly (N-carboxyglutamate). 3·) Kunstleder nach Anspruch 1, dadurch gekennzeichnet, daß die Zwischenschicht aus einem PoIyurethanharz besteht·3) artificial leather according to claim 1, characterized in that that the intermediate layer consists of a polyurethane resin 4,) Kunstleder nach Anspruch 1, dadurch gekennzeichnet, dafi die Zwischenschicht aus einem Polyaorylharz besteht.4,) artificial leather according to claim 1, characterized in that that the intermediate layer consists of a polyacrylic resin. 5·) Kunstleder nach Anspruch 3» dadurch gekennzeichnet 3 daß die Zwischenschicht aus einem porösen Polyurethanfilm besteht. 5 ·) artificial leather according to claim 3 »characterized in 3 that the intermediate layer consists of a porous polyurethane film. 108823/2079 sad original108823/2079 sad original -Sloe ) Kunstleder nach Anspruch k, dadurch gekennzeichnet, daß das Acrylharz ein Terpolymeres aus Butylacrylat, Acrylnitril und Acrylamid ist.-Sloe) artificial leather according to claim k, characterized in that the acrylic resin is a terpolymer of butyl acrylate, acrylonitrile and acrylamide. 7.) Kunstleder nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daS es durch Prägung eine naturlederartige Körnung aufweist.7.) artificial leather according to one of the preceding claims, characterized in that it is embossed with a natural leather look Has grain. 1O902.3/3Q7«1O902.3 / 3Q7 « LeerseiteBlank page
DE19671619275 1966-11-25 1967-07-10 leatherette Pending DE1619275A1 (en)

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GB1217215A (en) * 1967-10-20 1970-12-31 Kyowa Hakko Kogyo Kk Improved synthetic leathers
CS150413B1 (en) * 1971-04-30 1973-09-04
US3908060A (en) * 1972-10-17 1975-09-23 Toray Industries Artificial leather and method of preparation
US3841897A (en) * 1972-10-17 1974-10-15 Toray Industries Artificial leather
US4288498A (en) * 1980-05-06 1981-09-08 Collagen Corporation Method of making leather fiber insulation by drying-case hardening and product thereof
ES2842501T5 (en) 2015-09-21 2023-04-13 Modern Meadow Inc Fiber Reinforced Fabric Composite Materials
US11542374B2 (en) 2016-02-15 2023-01-03 Modern Meadow, Inc. Composite biofabricated material
AU2018253595A1 (en) 2017-11-13 2019-05-30 Modern Meadow, Inc. Biofabricated leather articles having zonal properties
CN113286864A (en) 2019-01-17 2021-08-20 现代牧场股份有限公司 Layered collagen material and preparation method thereof
WO2024100420A1 (en) * 2022-11-11 2024-05-16 Arda Biomaterials Ltd A bio-based leather substitute material

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US3103447A (en) * 1963-09-10 Leather and method for producing it
US2754291A (en) * 1951-08-09 1956-07-10 Maxwell A Pollack Polyamino acids
US2884340A (en) * 1955-01-27 1959-04-28 Rohm & Haas Polyisocyanate modified plural coat system for leather
US2957783A (en) * 1956-05-16 1960-10-25 Basf Ag Process of finishing leather
US3048496A (en) * 1959-12-09 1962-08-07 Rohm & Haas Finished leathers having coatings of a polymer of 55-80 percent vinylidene chloride and 20-45 percent (c-c4)-alkyl acrylate, and production thereof
US3223751A (en) * 1960-10-05 1965-12-14 Nopco Chem Co Treating agents comprising carboxyl containing copolymers and amino resin or amino resin base
US3294579A (en) * 1963-05-09 1966-12-27 United Shoe Machinery Corp Leather-like material and method of making the same
DE1435279A1 (en) * 1963-12-05 1968-11-28 Freudenberg Carl Fa Process for burning a permanent pattern into the surface of aniline-dyed grain upper leather
US3298856A (en) * 1965-02-12 1967-01-17 Miljo Chemical Company Inc Methods of finishing leather, and products thereby obtained
US3436303A (en) * 1965-09-16 1969-04-01 Minnesota Mining & Mfg Water-laid leather substitute containing leather fibers,staple fibers and polyurethane aqueous slurry and method for making same

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