• 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:
    The artificial leather of the invention comprises a fibrous sheet material having on the surface thereof a coating formed of at least two layers of polyurethane elastomer with the elasticity modulus E of the layer of the polyurethane elastomer adjacent to the fibrous sheet being lower than the elasticity modulus E2, E3 . . . Ep-1 of any of the following layer or layers, and at the same time being lower than the elasticity modulus Ep of the finish layer according to the relation E1<E2<E3< . . . <Ep-1<Ep, under the condition that all values of the elasticity modulus E are in the range of from 12 to 170 MPa. The method of manufacturing the artificial leather according to the invention is characterized in that the reactive polyurethaneprepolymer, containing free isocyanate -NCO groups, preferably in the range of from 2.2 to 3.2 percent by weight, in admixture with an amine hardening agent of the molar ratio of -NCO groups to -NH2 groups of from 1.0:1.0 to 5.0:1.0, preferably from 1.5 to 1.0 to 3.0:1.0, is coated on the fibrous sheet in an amount of 20 to 600 grams per square meter for individual layers, with the combined thickness of the coated layers being in the range from 50 to 2000 g/m2.
    公开号:SU827651A1
    申请号:SU762390903
    申请日:1976-08-27
    公开日:1981-05-07
    发明作者:Мюк Эдуард；Грабал Зденек；Амброж Лудвик；Горак Йосеф
    申请人:Вызкумны Устав Кожеделны (Инопредприятие)；
    IPC主号:
    专利说明:

    latex; and aqueous rasivar and mmonium salt of a copolymer of ethylene 1 and maleic acid and other modifiers of garymes. In a ready dry condition, ANI IMPORTANT (NO. P. Of the fiber bed) contains 65% of the mixture of these polymeric materials (in the form of dry matter, calculated “and the initial weight of the fibrous ipy | Na). The lining of the zatem is subjected to finishes, which are necessary, m to obtain (Soraamer even one arch, such as doubling, grinding.
    The first layer on the fiber lining prepared in this way is obtained by non-polishing by a flat mouthpiece connected directly to the mixer of the preplenisher and the hardener solution; The average retention time of the reactive polymer in the mixer and mouthpiece should not exceed 45 s. The temperature is maintained at about 50 ° C. The compositions of both the prepolymer and hardener components that react, are maintained with dosage and pumps; The data in grams per liter of fiber lining coverage is shown below. Prepolymer I
    Polycondensate glycol adipic acid and diphenylmetaidiisocyanate with the content of free NCO-ppynn 2,2% 350
    Toluene50
    Fluorocarbon solvent (freon 113) 30 Hardener I
    Methylenebis o-chloroaniline15
    Methyl ethyl ketone52
    Ferrous ments (ocher)
    | MI (crown particles2,1
    Lubricant (ail "horse oil) 0.5
    Fibrous lining with a layer of reactive polyurethane enters the dryer with a temperature of 80-100 ° C, the movement of the tape 1.8 m / min. Directly after leaving the dryer, the next layer can be applied.
    The second layer of material is created by an injection mixing sprayer, in which mixing of both components occurs and an equal distribution of droplets of reactive polyurethane onto the area of the fibrous formation that passes under this sprayer. The average residence time of the mixture in the sprayer is less than 3 s at a temperature of up to 100 ° C. The compositions of the second layer and hardener of the second layer are given below (g / m and focus skin).
    Prepolymer II
    Polyandenyate based on polypropylene glycol (average polymer degree about 17)
    and diphenylmethane diisocyanate with the amount of free NCO-rpyinn pr) Approximately 2.5% G50
    M-ethyl ketone50
    Hardener II
    Haxamethylenediamine 6
    Methyl ethyl ketone35
    Lead yellow crown5
    Chromophthalic brown
    pigment5
    Lubricant (silicone oil) 1 The reaction conditions in the dryer are similar to the conditions for applying the first layer of material.
    Like the second, a third layer is created by spraying with an injection mixing spray. The composition of the non-prepolymer is the same as that of the prepolymer P, the cocTaiB hardening mixture is given below.
    Hardener 1P
    HydraziN, 6
    Methyl ethyl ketone40
    Lead yellow crown3
    Chromophthalic brown
    pigment 1O
    Fluorescent Red Dye 0, 3
    Lubricant (silicone oil) 1.5
    The period of retention of the tape of artificial leather in the dryer at 60-100 ° С is 8-10 minutes. The resulting flat formation is transferred from the dryer to the embossing equipment, to the cooling rolls for a special separation - to obtain final effects. In the last phase, rolls are formed for storage, trasportronka occurs and further manipulation occurs. The resulting artificial skin D0 | stigiet optimum physicomechanical properties after the course of chemical reactions and crystallization processes, i.e. in 1-10 days. The achieved property parameters are summarized by IB in the table below.
    Example 2. The preparation of a facial polyurethane layer suitable for artificial leather is carried out in a reverse manner, i.e. by spraying individual layers onto a silicone embossed tape
    paper passing through a continuous spray machine. First, the final face is formed by spraying the mixture (g per 1 square of area):
    Polyurethane prepolymer 9.1 Pitrocellulose5,5
    Dispersion edge 4,0
    Solvent mixture (acetone, Methyl ethyl ketone, butyl acetate, toluene) 60.0 Arom.atis diisoshanat Application of the final layer of about 20-35 g / l. Immediately after drying the final layer, the front layer of the polyurethane elastomer is sprayed using a spraying device as described in Example 1. The following are compositions with a loss of 1 liter. Prepolymer IV Polyetherurethane with an amount of free NCO-rpyinn of 3.2% 150g. Hardener IV Amino Compounds 6.1 Methyl ethyl ketone 18.0 Dispersion dye (consists of Ti02 pigments, an organoscapon and a multi-solvent, mol. Weight 3,000 and a mixture of organic dyes forming a brown tint) 6.2 Silicone lubricant1, 0 A paper tape with sprinkling is conducted through a dryer at 55-75 ° C, where the deadline is 4-5 minutes, and immediately after leaving the substance, is provided with a bedded microporous polnerateium layer, again sprayed with a pressure-mixing spray gun as described in prim Here 1. Prepolymer V Reactive polyetherurethane, as determined from etredlo-polymer II100 Reactive polyetherurethane, as determined in prepolymer IV100 Toluene 50 Hardener V Mixture of ammonia compounds containing 5.5 g ipolyiamine NTA and 1.3 g benzidine 6.8 Water2.5 Other impurities ( lubricant, organic dyes, catalyst) 2.05 4eipe3 80 s from the moment the components are displaced and the wrong adhesive side of the applied material is pressed against the tape and fibrous under the box, such a flat formation through the supshlku at 60, 80 ° C, 4-7 min exposure arches. The belt at the exit of the dryer is cooled with guiding metal rollers and pressed against IB transport and rolls. The fiber lining prepared a fleece from 30% of rolled-up polypropylene 1.4 / 60, 25% of rolled-up polyester head 1.2 / 60. And 40% of polyamide fibers 1.5 / 40 on insulated equipment and the immobilization of the rune. Suitable for impregnation consists of a mixture of carboxylated butadiene-acryloniylol elastomer, thermally sensitized latex, and an aqueous solution of the ammonium salt of a low-molecular-weight sololimer. Properties made of artificial leather are summarized in the table. The fabricated material fully satisfies the demand for the manufacture of shoe tops and complex upholstery. EXAMPLE 3. A reversible method for producing a multi-layer planar formation, as described in Example 2, is artificial. The difference lies in the preparation of reaction mixtures and the setting of the operating mode of the continuous tape for spraying the mixture and the leakage and chemical reaction. Prepolymer VI Rea {tnvny polyetherurethane containing 2.9% free NCO-rpynn Hardener VI Polnamin9.6 Methyl Lateo4646.0 Disperioine dye containing inorganic pigments based on Fe2Oz10.0 Other impurities (lubricant, catalyst, organic dye.and , if necessary still drupie) 1.85 The temperature in separate sections of the substance is from 85 (at the beginning) to 60 ° C (at the end), the dwell time is 4 minutes The measures of measure VII Reactive polyurethane with the content of free 2.95% NCO-rpynn .250g. Hardener VII Polyamine 10,2 A mixture of solvents (containing methylethyl ketone, toluene, carbon tetrachloride) 57.0 Other impurities (lubricant, catalyst, organic dyes, other auxiliary agents if necessary) 1.8 times after formation of 11 In: a uniform layer, a puff polyurethane formation is imprinted on a parallel lamination of a fibrous lining. The tape is made from a mixture of 25% propylene staple hair 1D / 60 and 20% polyester staple glass 1.4 / 40 and 55% chromed dumb to a folded volatile material; -an-acrylo, n. nitrile tex, dispersion - acrylate sololol and an aqueous solution of a1MMONi salt of the styrene-maleic acid polymer. In this way, the resulting artisan is retained by an IB dryer 2.5–3 min to 60–80 ° C. The product, after being cooled by tallic rollers, accumulates in the form of a coil. The material achieves optimal elastic characteristics, and T1ik for a certain time. The material is based on the pr1Ime; ru 1 has optimal properties after 3 days, the flat treatment according to example 3 after 8-10 days. PRI me R 4. The method described in example 2, made of polyurethanes final layer for artificial life: a) Facial (final) layer stand, g: Polyurethane prepolymer VHI containing 4.0% free NCO-rpynn9,1 Nitrocellulose5,5 Dispersiopionic dye4.0 Mixture of solvents (acetol, methyl ethyl ketone, butyl acetate, toluene) 30.0 Hardener: methylenebis-hydrochloride my1.5 Mixture of solvents 30.0 Thick, -in front (final layer 20-35 g / L { 2. The modulus of elasticity is 17 MP a.; B) The first backing layer (painted B1 inside the material). The materials used are essentially the same composition as prepolymer VI and verdelite VI. Thickness of a layer is 220-230 g /. The modulus at the rudity 100-125 MP and. c) Second base layer (colorless, macroporous)., Pre-polymer IX, containing 2.0 free NCO-rpynn 10.0 Hardener (polyami) 8.0 M. methyl ethyl ketone 46.0 Remaining impurities (s-mazha substance, catalyst , if necessary, others) 1.8 The thickness of the layer is about 200 g1m. The modulus of elasticity 70-90 MPa. d) The third backing layer (double). A prepolymer containing 2.1% free O2CO groups 190.0 Hardener X (epicure 3) 20.0 Phor soda gas and hydrocarbon (fre.01 F-113) 25.0 Flat mass of the layer is about 200 g / g. Apparent modulus of elasticity 30-60 MPa e) Soft "buffer layer, Pre-polymer VI, containing 2.9% free NCO-npynn300.0 Hardener (epicure 3) 8.6 MethylethyL1eto; n25.0 Fluorine-containing hydrocarbon (freon F- 113) 52.0 The remaining impurities (lubricant, catalyst) 2.4 Planar: I 1 mass of the layer is about 300 g / f. The apparent modulus of rubber is 12–25 MPa. The heating conditions and the individual layers of the layers do not differ from the data given in example 2. The fibrous lining is prepared from a mixture containing 35 May,% polypropylene staple wavelength 1.2 / 60 and 40 May. % coagulable staple polyester fiber. 1.4 / 60 fiber with the addition of 25 May. % collagen fiber. Pr.IGOtted fleece is compacted to a bulk of about 0.25 g / m and impregnated with a water dispersion of synthetic thermoenabilized elastomers, as described in examples 2 and 3, while the content of solids in the lining reaches 60-65 May . % (calculated on the initial weight of the fibrous substrate). The prepared sanded lining is poured into the last reactive buffer layer d), when it is still in a tactile state, this means in the range of 1.5-3 min from my mixing of the prepolymer and otve (the reactants react. After the aisle dryers from the surface of the enamel peel off the reversible matrix or silicone paper and artificially pressurized into the transporting rudder s. Physical-chemical, mechanical properties of an artificial stake manufactured in the different way, in comparison with natural products oh leather and well-known artificial leather P1p. are listed in the following table.
    As can be seen from the table, in terms of basic physical and mechanical pa.ra; meters, the artificial leather obtained by the proposed method exceeds the known artificial leather and is close to natural leather.
    权利要求:
    Claims (1)
    [1]
    1. Japanese patent number 5002, cl. E 23, aiublik. 1973 (prototype).
    类似技术:
    公开号 | 公开日 | 专利标题
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    US4071390A|1978-01-31|Method of coating flexible substrates with polyurethane-polyurea elastomers and products produced thereby
    US3400173A|1968-09-03|Urethane polymers containing graft copolymer of vinyl chlordide or saponified ethlene-vinyl ester copolymer
    US4613527A|1986-09-23|PUR-coating compositions which are cross-linkable under heat, a process for their production and their use thereof as an adhesive coat for textiles
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    同族专利:
    公开号 | 公开日
    US4190694A|1980-02-26|
    JPS5234906A|1977-03-17|
    FR2322234B1|1980-10-17|
    DE2638792B2|1980-07-17|
    IT1065217B|1985-02-25|
    DE2638792C3|1981-06-11|
    DE2638792A1|1977-03-10|
    FR2322234A1|1977-03-25|
    CS184491B1|1978-08-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    RU2527367C1|2010-11-11|2014-08-27|Вэйжень ТАН|Leatherette with ultrathin fibres and method of its manufacture|FR1376530A|1963-06-21|1964-10-31|Griffine|Process for manufacturing a leather substitute and the products thus obtained|
    GB1132594A|1964-08-13|1968-11-06|Porous Plastics Ltd|Improvements relating to artificial leather|
    DE1240654B|1965-05-14|1967-05-18|Bayer Ag|Process for the production of crosslinked plastics using the isocyanate polyaddition process|
    GB1132888A|1966-07-11|1968-11-06|Ici Ltd|Water vapour permeable sheet materials|
    US3595732A|1966-08-15|1971-07-27|Minnesota Mining & Mfg|Process and microporous product|
    US3542617A|1967-06-08|1970-11-24|Fiber Industries Inc|Method for producing a leather-like material|
    JPS538762B1|1968-01-17|1978-03-31|
    US3650880A|1968-11-20|1972-03-21|Hooker Chemical Corp|Porous polyurethanes and method of manufacture|
    DE2009338C3|1969-03-17|1979-09-13|Dainippon Ink And Chemicals, Inc., Tokio|Process for the preparation of an aqueous dispersion containing air bubbles and the use thereof|
    US3794548A|1970-04-02|1974-02-26|Hooker Chemical Corp|Method of introducing breathability to a non-porous continuous plastic film|
    CS150413B1|1971-04-30|1973-09-04|
    JPS535364B2|1971-11-27|1978-02-27|
    AT341994B|1972-08-11|1978-03-10|Akzo Nv|SYNTHESIS LEATHER AND THE METHOD OF ITS MANUFACTURING|
    US3841897A|1972-10-17|1974-10-15|Toray Industries|Artificial leather|
    US3908060A|1972-10-17|1975-09-23|Toray Industries|Artificial leather and method of preparation|
    GB1428873A|1973-03-31|1976-03-17|Kuraray Co|Production of simulated leather|
    JPS5549192B2|1973-05-07|1980-12-10|
    DE2402840A1|1974-01-22|1975-08-07|Bayer Ag|TEXTILE COATING WITH MIXTURES OF POLYURETHANES, VINYL COPOLYMERS AND DUTEN GROP COPOLYMERISATES|
    US4053669A|1974-04-11|1977-10-11|Pandel-Bradford, Inc.|Imitation sheet material with surface grain appearance|
    US3958057A|1974-06-28|1976-05-18|Kuraray Co., Ltd.|Leather-like sheet material having excellent pearl-like tint and process for preparation thereof|
    JPS563469B2|1974-12-25|1981-01-24|CA1191317A|1981-12-28|1985-08-06|Donald C. Eckert|Loose-lay flooring|
    DE3227679A1|1982-07-24|1984-02-02|Bayer Ag, 5090 Leverkusen|COATED COMPOSITE, METHOD FOR THE PRODUCTION THEREOF AND ITS USE FOR LINING THE THROUGH|
    US4728564A|1985-02-05|1988-03-01|Kuraray Co., Ltd.|Sheet-like structures and process for producing the same|
    EP0310037B1|1987-09-28|1993-07-14|Kuraray Co., Ltd.|Leather-like sheet material and method of producing same|
    IT1244503B|1991-04-05|1994-07-15|Man Made Srl|ARTIFICIAL ELASTICIZED LEATHER AND PROCEDURE FOR ITS PRODUCTION.|
    US6177198B1|1998-07-07|2001-01-23|Philipp Schaefer|Leather with a finish on the buffed surface, and process for producing a leather of this type|
    DE19931323B4|1999-07-07|2008-10-16|Benecke-Kaliko Ag|Composite structures with one or more polyurethane layers, process for their preparation and their use|
    US20040202867A1|2003-04-14|2004-10-14|Chang-Cing Kuo|Nanometer structured synthetic leather and its fabrication method|
    DK3385421T3|2010-05-25|2022-01-17|Ananas Anam Uk Ltd|Natural nonwoven materials|
    CN102926206A|2012-10-25|2013-02-13|江苏国信合成革有限公司|Highlight extra-bright PVCluggage leather|
    TWI488673B|2013-08-08|2015-06-21|Shyi Ming Chen|Rod, and softball|
    CN105563927B|2015-12-30|2017-11-07|江阴市长泾花园毛纺织有限公司|A kind of air layer face fabric of the sponge sheet of toughness reinforcing containing PLA|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CS7500005908A|CS184491B1|1975-08-29|1975-08-29|Ambroz,ludvik,cs|
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