• 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:

    公开号:SU906391A3
    申请号:SU772514756
    申请日:1977-08-23
    公开日:1982-02-15
    发明作者:Икеда Масатака；Исикава Тацуо；Сима Цукаса
    申请人:Асахи Касеи Когио Кабусики Кайся (Инофирма)；
    IPC主号:
    专利说明:

    (54) METHOD FOR OBTAINING FIBROUS MATERIAL
    one
    The invention relates to light pro-lazernost, in particular to a method for producing a fibrous material used as the basis for the production of artificial leather.
    A known method for producing a fiber-like material used as a base when penetrating artificial leather is applied by applying liquid jets, for example, with a pressure of 7-12 kgf / cm, of epo synthetic fibers with a diameter of 1 µm on one side of the fabric.
    However, the fibrous material1al, according to the scientific method 1, in a well known manner, low beats and strength properties and unsatisfactory softness due to insufficient penetration of the fibers of the layer into the fabric or knit fabric.
    . The purpose of the invention is to increase the strength performance properties as well as improve softness.
    ; The goal is achieved by the fact that according to the method of obtaining a fibrous material used as the basis for the production of artificial leather, applying on one side of a fabric or knit a layer of artificial fibers with a diameter of 0.1-6 microns, followed by bonding; this, the bond is held by liquid jets.
    JO with a pressure of 15-100 kgf / cm while evacuating on the other hand with a vacuum intensity of 10-200 mm Hg.
    Example 1. Poly (ethylene terephane) IIS pellets are melted in an extruder and extruded with 1500 spinning holes 0.30 µm in diameter at an extrusion rate (0.15 g / min per hole) into a stream of water vapor blown in the same. direction, at a pressure of 3.5 kGS / cm. The resulting continuous and very thin fibers randomly stack 25 on a conveyor grid moving at a constant speed along a path 40 cm from the ends of the nozzle opening. Obtain a non-reinforced, fibrous web weighing 80 g / cm. fiber 1.5 microns which corresponds to a denier of about 0.02, while in the fabric essentially does not occur sticking of fibers with each other. The bonded fiber of polyethylene terephthalate multifilament fibers (forming a yarn with a density of 40 denier / 36 filaments) is placed on the said fibrous web. Then one more fibrous web is placed on the occupied material with the formation of a three-layer fibrous multilayer semi-fabric (bag or web). Volbknisty
    the bag is placed on a mesh conveyor (mesh) rotating around a pair of rollers at a speed of 10 m / min. Numerous jets of water flows from the orifices of the nozzles towards the surface of the package are supplied to the package under the following conditions. Diameter of the nozzle opening, mm0.10
    Number of nozzles 420 Number of reciprocating movements of nozzles per minute 200 Length of one movement of the nozzle, cm 3.0 Pressure of water jet, kg / cm 25
    Package feeding speed, m / min1.0 Package width, cm 30
    Impact zone
    0.071
    single stream, mm Total area ratio of collision 5.0 Distance between nozzle and bag (webs), cm3.0 At the same time with the operation of creating a jet stream, a vacuum of 50 mm Hg is applied to the opposite surface of a fibrous multilayer sheet. This operation is repeated on the other side.
    Further, both surfaces of the fibrous multilayer web are brought into contact with numerous water streams when a reduced pressure of 725 mm Hg is applied. (vacuum is 51 mm Hg) to the surface.
    The resulting fibrous (composite) material has high softness and elasticity. Both surfaces of the obtained fibrous material do not contain cavities or teeth and are smooth and even. The properties of the fibrous material are shown below: Weight, g / m2-200
    Thickness, mm0.78
    Density, g / cm 0.25 Tensile strength, kg / mm -0.95
    Tear resistance, kg (per strip) 3,3 Strength of bonding of layers, kg / cm 6,7
    Relative elongation,% 83 Compressibility,% 32 Residual compression,% 8 M Gcost, mm26 The ratio of the total weight of nonwoven components of the material to the woven component of material 4.0 Fibrous nonwoven layer in the fibrous material has a density of 0.23 g / cm and tensile strength
    0.21 kg / mm
    Received fibrous material
    used to obtain artificial leather, for which is impregnated with 5% -HbW with a water solution of polyvinyl alcohol and dried. Then fibrous. the material is impregnated with 40% by weight of the material with a 10% solution
    polyurethane about elastomer in dimethylformamide. The impregnated fiber material is immersed in the water that is opposite to which the jetting water flows under the conditions: Diameter of the orifice of the nozzle, mm0.10 Number of nozzles 420 Number of reciprocating movements of the nozzles per minute 100 Water jet pressure, kg / cm50 m / min. Impact zone for one jet, mm Distance between the spinneret and the sheet, cm 20 Ratio of the impact force of water flow and in the first stage of creation of the flow to impact force at stage 1:50. dimethylformamide solution until complete coagulation of the polyurethane elastomer. The material is then immersed in hot water at a temperature to effect shrinkage of the fibrous material of 10%. After washing and drying, get artificial leather, which is polished. One-sided with emery paper. Obtained on artificial leather has a nap surface in the form of a layer consisting of very fine fibers with uniform and high porosity. Artificial leather has high softness and elasticity. The properties of the artificial leather based on pile material according to the proposed method are indicated below. Weight, g / m - 285 Density, g / cm 0.32 Tensile strength, Tear resistance, kg Bonding strength between layers, kg / cm Deformation at elongation,% 90 Compressibility,% 25 Deformation after compression,% 86 Gramth, mm 32 Abrasion resistance Class 5 In each of Examples 2-5, a disordered web weighing 100 fibers with a diameter specified in the table is obtained. Fibers are obtained from extruded nylon-6 melt at 30 ° C at a speed indicated in the table into a stream of water vapor at 36 ° C) and a pressure of 4.0 kg / cm. In each of examples 6 and 7, nylon-6 is melted in an extruder, The melt is extruded at 295 C at the extrusion rate given in the table, and the flows of the extruded melt are cured and crimped at a speed of 800 m / min. The resulting filament fibers are stretched to a tension level of 2 and /, resulting in nylon 6 filament fibers, shown in the table. In comparative example 3, the same operations as described in examples 6 and 7 are carried out, except that the degree of extrusion and denier of the obtained drawn fibers are shown in the table. In each of examples 6 and 7 and in comparative npi-iMepe 3, the elongated filament fibers are cut with the formation of staple fibers 5 mm long. The staple fibers are suspended in water in an amount of 2,000 times the weight of the staple fibers. A dispersant containing polyacrylamide in a concentration of 0.01 wt.% Is added. The slurry is stirred until the staple fibers are uniformly distributed in the water. The slurry is subjected to a papermaking process using a papermaking machine to form a disordered web weighing 100 g / m. In each of Examples 2-7 and in Comparative Example 3, a knitted material consisting of polyfilament yarn of nylon 6 with a density of 70 denier / 36 filaments and a weight of 60 g / m is placed between two fibrous layers obtained as shown above , with, obtaining a three-layer fiber packet (web). Next, the process is carried out analogously to the example of obtaining artificial leather. The properties of the obtained artificial leather according to examples 2-7 and in comparative example 3 are shown in the table. As can be seen from the table, artificial leather obtained using the proposed fibrous material has enhanced durability and performance properties, as well as improved softness and appearance.
    0.10
    0.1
    0.12
    0.5 0.15
    2 4
    0.20 0.05
    0.07
    26
    Good
    26
    Very good
    28
    Excellent)
    30 35
    5 5
    Is great
    Very good )
    38
    Good
    权利要求:
    Claims (1)
    [1]
    Claim
    A method of producing a fibrous material used as a basis in the manufacture of artificial leather by applying to one side of a fabric or knit a layer of artificial fibers with a diameter of 0.1-6 microns, followed by bonding them using ** liquid jets, characterized in that that, in order to increase the strength and operational properties, as well as the softness of the material, the fibers are bonded with (liquid jets with a pressure of I5100 kg / cm and while evacuating on the other hand with a vacuum intensity of 10-200 mm Hg
    类似技术:
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    同族专利:
    公开号 | 公开日
    JPS5331866A|1978-03-25|
    JPS6037230B2|1985-08-24|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    WO2012121624A2|2011-03-09|2012-09-13|Dokukin Aleksey Nikolaevich|Extrusion method for producing a flat fibre made from synthetic raw material|
    JPS6361435B2|1983-03-22|1988-11-29|
    JPH0140151B2|1983-09-30|1989-08-25|Toray Industries|
    JPH0556144B2|1984-04-30|1993-08-18|Johnson & Johnson Prod Inc|
    JPH06105660B2|1986-04-24|1994-12-21|松下電工株式会社|Advance type discharge lamp ballast|
    JPH01213453A|1988-02-22|1989-08-28|Toyobo Co Ltd|Production of nonwoven fabric consisting of ultrafine fiber|
    JP6016557B2|2012-09-27|2016-10-26|三菱製紙株式会社|Nonwoven fabric substrate for lithium ion secondary battery separator and method for producing the same|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP51099726A|JPS6037230B2|1976-08-23|1976-08-23|
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