• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    1418061 Artificial leather FIBERWOVEN CORP 3 Jan 1973 [28 Jan 1972] 377/73 Heading B2E [Also in Divisions B5 and D1] An artificial leather comprises a coated needled non-woven fabric having an overall bulk density of at least 6 lbs/ft<SP>3</SP> e.g. 20 to 45 lbs/ft<SP>3</SP> and its axis of flexure is within 0.3 of the distance from the face surface to the back surface. Preferably there is a density gradient across the fabric thickness, the face region having the greatest density. The fabric is bonded, dried, buffed, sanded and a coating of polyurethane applied to the face side of the fabric by means of a doctor blade. The fabric is dried and stood at room temperature for 3 hours whilst the polyurethane becomes 30% cured and then embossed between an upper belt at 400‹F and a lower belt at 75‹C so that the upstanding fibres at the surface are orientated in the plane of the fabric and form with the polyurethane a porous surface layer. Three coats of pigment plus an aqueous emulsion of 74/20/3/3 copolymer of ethyl acrylate, methyl acrylate, methylol acrylamide and methacrylic acid are sprayed onto the face side, the fabric embossed at 345‹F to give a grained texture then sprayed on the face side with a nitrocellulose laquer and on the back surface with an aqueous solution of sulphonated fats as a softener. In an alternative embodiment an impervious coating of P.V.C. or polyurethane may be sprayed on. As shown in Fig. 1 a plurality of corded webs are laid one on top of the other, the middle webs having fibres of greater length and/or denier than those of the outer webs The sandwich is compacted, needled and split into two. Each split web now has a fibre pick up gradient i.e. the fibres of the face region are of the smaller length and/or density than those of the back region. Needling thus densifies the face region more than the back region. (Where splitting is not used a 2 or 3 layer composite web is given its first needling from the face side only.) Two corded layers of # to ¥ inch length and ¢ to 2 denier fibres are applied to the face surface, the second layer preferably having the fibres of smallest length and denier. The fabric is needled a second time, dipped in a concentrated aqueous solution of a wetting agent soap or thickening agent so as to facilitate a third needling, then washed and dried. Preferably no more than # inch of each needle penetrates through the thickness of the fabric during needling. The fabric is then passed between a roll having a plurality of upstanding wires and a friction roll, there being a difference of 1 to 100% in their peripheral speeds, the friction roll preferably rotating faster. Alternatively the fabric is transversely stretched on a tenter and then heated with hot air. The fibre entanglement is thereby lessened, fibre relaxation encouraged, the ratio of longitudinal transverse stressstrain modulus reduced to 2 or even to unity, and heat shrinkage of the face region facilitated. The fabric is hot pressed between two belts. In example 1 the first portion of the upper belt is maintained at 460‹F. The lower belt and the second portion of the upper belt is maintained below 200‹C by circulating cooling water through heat exchanger over which the belts pass. The fibres preferably have 3 to 28 crimps per inch and are nylon, polyester, polyacrylic, polyethylene, polypropylene, polyvinyl chloride, polyvinyl acetate, polyvinyl alcohol, cotton, collagen, wool and combinations thereof. The fabric may comprise 5 to 200% by weight of the fibres of a filler, giving a total bulk density of 20-45 lbs/ft<SP>3</SP>. Preferably the filler is an organic polymer such as collagen. Natural rubber, silicone or fluorosilicon rubber, polyacrylonitrile, polyethylene polypropylene, chlorosulphonated polyethylene, plasticised P.V.C., copolymers of tetrafluoroethylene and chlorotrifluoroethylene, polysulphides, polychloroprene, polymers and copolymers of butadiene, isobutylene butene and pentene and copolymers of alkyl acrylates with vinyl ethers. Alternatively finely divided chalk, bentonite, kaolin, talc, clays, asbestos, diatomaceous earth, silica flour, mica, magnesium silicate, zeolites, carbon black, zinc oxide, barytes, or ferric oxide may be bonded to the fibres with P.V.C., natural rubber or butadiene, polychloroprene, polyurethane or silicon rubber. In example 1 a natural rubber latex is padded onto the fabric and coagulated by 10 minutes treatment with steam at 218‹F. Preferably the filler forms spheres arranged in groups and loosely bonds the fibres.
    公开号:SU890984A3
    申请号:SU731874551
    申请日:1973-01-23
    公开日:1981-12-15
    发明作者:Мартин Смит Александр
    申请人:Файберуовен Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    with a gradual decrease in bulk density across the intermediate layer, m 3 4, 5. In this material, the bulk density of the fibrous material of the layers is Eb-Zzb kg / m with an increase in density towards the front surface. In the manufacture of non-woven material, textile fibers, for example, known polyester fibers, are combed on conventional carding machines, for example, carding machines for wool, and layered over each other. In this case, the layer bordering the face coating may consist of fibers capable of shrinking under the influence of heat treatment of the sewn material, forming a compacted zone entering the material by an amount less than the thickness of the layer, and the reverse surface of the material may be kept relatively cold. The material between the fibers 6 has empty spaces. These gaps are filled with a filler consisting of individual particles 7 pre-bundled, which freely adhere to the fibers of the material (see Fig. 2), but the gaps are partially filled, thus the structure of the material remains porous, and when impregnated latex gives the material a certain elasticity and stability. The filler is introduced in such an amount that the weight of the dried impregnated material becomes more than the weight of the material without impregnation up to 200%. After impregnation, the front surface of the cured material can be ground or polished and finishing agents can be applied to it. The thickness of the fibers in the layers is different, it decreases in the direction of the face coating and is within 0.056-0.89 km / g from layer to layer. This gradient of fiber thickness is maintained after needling in the structure of the material. Fiber layers are in the range of 0.63–10.16 cm, with fibers of 0.32–1.9 cm long located on the surface not of the greatest length of fibers. Fibrous | Layers of the proposed material are scraped together by needling, and some the fibers are bonded to each other in the longitudinal direction of the material, resulting in a strong interlacing of the fibers. The ratio of the fibers connected by needling is close to the ratio of the fibers of natural leather and has a density gradient similar to leather. The fibers of the layers can also be interconnected by chain interlacing. The resulting nonwoven material (artificial leather) has properties similar to those of natural leather, the modulus of elasticity (close to the elastic modulus of natural leather, and can be molded on a shoe like natural leather in the manufacture of shoes. Invention formula 1. Non-woven material, for example artificial leather, consisting of Fiber | 4-layered layers bonded to each other by needle-punching, filler and face coating, so that, in order to increase its performance, the bulk density of fibrous The material of the layers is 96-336 kg / m and the density of the material increases in the direction of the face coating. 2. The material according to claim 1, characterized in that the thickness of the fibers of the layers decreases in the direction of the face coating and is within 0.056-0 , 89 km / g. 3. The material according to claims 1 and 2, characterized in that the fiber length of the layers is in the range of 0.63-10.16 cm. C. The material according to claims 1-3, characterized in that the longest side of the fibers on the surface are fibers with a length of 0.32-1.9 cm. 5. Material on PP. 1-, characterized in that the layer bordering the face coating consists of shrinkable fibers. 6.Material on PP. 1-5, characterized in that the fibers of the layers are connected to each other by a chain weave. Sources of information taken into account in the examination 1. US patent No. 3206351, cl. 161-59, 19b5 (prototype).
    权利要求:
    Claims (6)
    [1]
    Claim
    Μ 1. Non-woven material, for example, artificial leather, consisting of fibrous layers bonded to each other by needle piercing, filler and face coating, so that in order to increase its performance, the bulk density of the fibrous material of the layers is 96-336 kg / m® and the density of the material increases in the direction of the face coating.
    [2]
    2. The material according to p. 1, characterized in that the thickness of the fiber layers decreases in the direction of the front coating and is -> in the range of 0.056-0.89 km / g.
    [3]
    3. The material according to paragraphs. 1 and 2, characterized in that the fiber length of the layers is in the range of 40 0.63 “S, 16 cm.
    [4]
    4. The material according to paragraphs. 1-3, characterized in that on the side of the longest fiber length on the surface are fibers with a length of 45 0.32-1.9 cm
    [5]
    5. The material according to paragraphs. 1-4, characterized in that the layer adjacent to the front coating consists of fibers that are capable of shrinkage.
    [6]
    6. The material according to paragraphs. 1-5, characterized in that the fibers of the layers are connected to each other by chain weaving.
    类似技术:
    公开号 | 公开日 | 专利标题
    SU890984A3|1981-12-15|Nonwoven material
    US2910763A|1959-11-03|Felt-like products
    US5102724A|1992-04-07|Two-way stretch fabric and method for the preparation thereof
    US2430868A|1947-11-18|Process for treating fibrous materials
    US4560385A|1985-12-24|Process for the treatment of non-woven sheets and the product obtained
    US2719806A|1955-10-04|Process for the manufacture of porous, air-permeable, flexible sheet material
    US3770562A|1973-11-06|Composite nonwoven fabrics
    US3695269A|1972-10-03|Method of making absorbent products with highly absorbent cores and relatively dry facings
    CA2417876C|2010-03-09|Thermal control nonwoven material
    US2719802A|1955-10-04|Fibrous, non-woven textile-like sheet material
    JP3135291B2|2001-02-13|Elastomer impregnated non-woven material
    GB1073182A|1967-06-21|Improvements in or relating to bonded textile materials
    US3956560A|1976-05-11|Smooth surfaced textile fabric
    US4434205A|1984-02-28|Artificial leathers
    US20090047476A1|2009-02-19|Artificial leather and method for producing the same
    JPH0788615B2|1995-09-27|Thermal adhesive bonding cloth
    US3455772A|1969-07-15|Non-woven reinforced blown rubber underpad
    GB1501871A|1978-02-22|Pile fabrics
    DK166797B1|1993-07-19|Washable water- and dirt-binding cleaning mat
    US2774074A|1956-12-18|Garments with interlinings
    EA003479B1|2003-06-26|Artificial fur and method for its manufacture
    GB1487488A|1977-09-28|Manufacture of stretch-elastic nonwoven material
    US4431687A|1984-02-14|Method for the manufacture of a fabric-type artificial leather
    US3776799A|1973-12-04|Process for bonding the fibers of a non-woven textile fabric
    CA1095700A|1981-02-17|Composite sheet and a process for preparing the same
    同族专利:
    公开号 | 公开日
    FR2169348B1|1977-09-02|
    US3817820A|1974-06-18|
    ZA747848B|1976-07-28|
    FR2169348A1|1973-09-07|
    BE794594A|1973-05-16|
    BR7300633D0|1973-09-13|
    NL7301165A|1973-07-31|
    GB1418061A|1975-12-17|
    CH580698B5|1976-10-15|
    ZA73648B|1975-02-26|
    CA981892A|1976-01-20|
    CH64373A4|1976-01-30|
    DE2303061A1|1973-08-02|
    IT971234B|1974-04-30|
    CS203915B2|1981-03-31|
    DE2303061C2|1983-05-05|
    ATA35673A|1978-07-15|
    JPS4882003A|1973-11-02|
    PH10239A|1976-10-08|
    LU66909A1|1974-09-25|
    DD102173A5|1973-12-05|
    AT348778B|1979-03-12|
    ES411045A1|1976-03-16|
    AR207101A1|1976-09-15|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3090099A|1960-05-13|1963-05-21|Chatham Mfg Company|Method of needle punching fabrics so as to interlace the fibers thereof|
    US3112549A|1960-05-13|1963-12-03|Chatham Mfg Company|Needle punch machine|
    US3112552A|1960-05-26|1963-12-03|Chatham Mfg Company|Needled fabric structure|
    NL129769C|1960-05-26|1900-01-01|
    US3206351A|1961-10-04|1965-09-14|Fiberwoven Corp|Needled fabric structure and method of making same|
    US3298080A|1961-10-04|1967-01-17|Fiberwoven Corp|Method of making needled fabric structure|
    NL137082C|1962-03-16|1900-01-01|
    US3705226A|1969-07-09|1972-12-05|Toray Industries|Artificial leather and a method of manufacturing the same|
    DE2035502A1|1970-07-17|1972-01-20|Artos Dr.-Ing. Meier-Windhorst Kg, 2000 Hamburg|Process for the production of in particular special shoe material|US3908057A|1972-01-28|1975-09-23|Fiberwoven Corp|Fabric with thin surface matrix and method for production thereof|
    US4021593A|1972-01-28|1977-05-03|The Fiberwoven Corporation|Needled fabric structure|
    US3956560A|1972-01-28|1976-05-11|The Fiberwoven Corporation|Smooth surfaced textile fabric|
    US3940532A|1972-01-28|1976-02-24|The Fiberwoven Corporation|Needled textile fabric with a thin polymeric coating thereon|
    US3936555A|1972-01-28|1976-02-03|The Fiberwoven Corporation|Filled textile fabric with a density gradient|
    US4002790A|1972-10-03|1977-01-11|General Electric Company|Postformable laminate|
    US3952124A|1973-07-09|1976-04-20|Johnson & Johnson|Back-to-back transition web and method of making said|
    JPS563469B2|1974-12-25|1981-01-24|
    JPS5747775B2|1976-08-31|1982-10-12|
    JPS5747776B2|1976-08-31|1982-10-12|
    US4132821A|1977-09-22|1979-01-02|Scott Chatham Company|Textile fabric with leather-like appearance|
    US4154335A|1977-11-04|1979-05-15|Albany International Corp.|Conveyor belting and method of manufacture|
    US4320167A|1979-11-19|1982-03-16|Phillips Petroleum Company|Nonwoven fabric and method of production thereof|
    US4935295A|1988-12-01|1990-06-19|E. I. Du Pont De Nemours And Company|Needling process for spundbonded composites|
    FR2670510B1|1990-12-12|1994-08-19|Valeo|
    US5436045A|1991-12-09|1995-07-25|Speedfam Corporation|Low abraision material comprising a fibrous matrix impregnated with a polyurethane resin wherein fiber ends are exposed on at least one surface of the material|
    FR2698385B1|1992-11-20|1995-02-10|Peaudouce|Composite nonwoven material and its application to any absorbent hygiene article.|
    US5843064A|1992-11-20|1998-12-01|Peaudouce|Non woven material and hygienic absorbent article comprising such material|
    FR2698384B1|1992-11-20|1995-02-10|Peaudouce|Multilayer nonwoven material and absorbent hygiene article comprising such material.|
    US5908792A|1995-10-04|1999-06-01|The B. F. Goodrich Company|Brake disk having a functional gradient Z-fiber distribution|
    US6258739B1|1998-10-30|2001-07-10|Ppg Industries Ohio, Inc.|Double sided needled fiber glass mat for high flow thermoplastic composite|
    DE102004028801B4|2004-06-15|2010-09-09|Findeisen Gmbh|Needle nonwoven having a surface structure and method and apparatus for producing a needlepunch having a surface structure|
    US20070298208A1|2006-06-27|2007-12-27|Aseere Lester M|Process of preparing carpet backing using nonwoven material|
    JP2009085091A|2007-09-28|2009-04-23|Ibiden Co Ltd|Mat material, exhaust gas treating device, and muffler|
    CA2764333A1|2009-06-03|2010-12-09|Glt Technovations, Llc.|Material for use with a capacitive touch screen|
    EP3287178A1|2011-04-11|2018-02-28|Dari GmbH|Filter material for cleaning a fluid|
    US8507102B1|2012-08-07|2013-08-13|Fownes Brothers & Co., Inc.|Conductive leather materials and methods for making the same|
    US10221519B2|2014-12-10|2019-03-05|Fownes Brothers & Co., Inc.|Water-repellant conductive fabrics and methods for making the same|
    ITUB20159939A1|2015-12-23|2017-06-23|Forza Giovane Uno Snc|PROCESS FOR COLORING AND PAINTING WITH NEEDLE, SEWING OR EMBROIDERY NEEDLES|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US00221614A|US3817820A|1972-01-28|1972-01-28|Needled textile fabric|
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