• 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:SU974937A3
    申请号:SU802869296
    申请日:1980-01-10
    公开日:1982-11-15
    发明作者:Шнайдер Хайнрих；Хаммершмидт Йоханн
    申请人:Хеми Линц Аг (Фирма)；
    IPC主号:
    专利说明:

    one
    This invention relates to a process for the production of fibrous materials from thermoplastic materials and may be used in the textile industry.
    A method of producing a fiber material is known, according to which the webs are made of thermoplastic fibers, subjected to needling, stretching and heat treatment L1 I
    However, the known method does not allow to obtain a material with given improved strength characteristics / both in the longitudinal and in the transverse direction.
    The purpose of the invention is to improve the strength properties of the material in the near and lateral directions.
    The goal is achieved by the fact that according to the method of obtaining a fibrous material, in which a web is formed from thermoplastic fibers, it is subjected to needling and stretching, heat treatment is carried out at a temperature of 85-25 ° C. below the melting point of the crystals of the thermoplastic material of the fibers, the stretching is carried out in the direction of lower tensile strength to a value greater than 5O-20O% of the length of the fibrous material, and in a direction perpendicular to the direction of lesser strength, until its length changes more than .
    10 The proposed method is applied to filaments of filament yarns from all thermoplastic materials, for example polyamide polyester, polyolefin, etc., preferably from homo- and co-15 propylene polymers and polyesters.
    Example 1. Needle material of propylene filament yarn, having the following parameters: 20 Titer of yarn, dtex 11
    Weight per unit pl., g / m 24O
    Punching density, pr / cm60 Tensile strength, H longitudinal 64 O transverse 305 Discharge elongated longitudinal transverse 85 transverse without longitudinal stretching on the exhaust frame, with i 13 Oc continuously extending in the transverse direction by 20%. After the exit from the ne with hot air, the material is pulled out of the frame and wound. This material is IR (it has the following parameters: Weight per unit, g / m Tensile strength, N longitudinal transverse Razdragon elongation,% longitudinal transverse Consequently, with the same longitudinal tensile strength, it has an increased lateral tensile strength of 5O N. Rimme 2. The same material (see Example 1) is introduced into the stretching frame and subjected to stretching at a rate such that it is pulled out of the lateral edges at room temperature in the longitudinal direction by 1 O%, then stretched in the pepper direction at –t 130 ° С by 2%. The cooled flow through the stretched after stretching has the following parameters: Weight per unit of pl., g / m Tensile strength, N longitudinal transverse Tensile elongation,% longitudinal transverse
    PRI me R 3. Needle-punched material fto example I, having the following parameters:
    Thread Title, dtex11
    Weight per unit pl.
    Tensile strength, N
    longitudinal 62 o
    transverse 320
    Elongation,%
    longitudinal1O1
    transverse163
    Perforation density, pr / cm 12O
    权利要求:
    Claims (1)
    [1]
    stretched in a stretching frame without prior longitudinal stretching at t 135 ° C by 180% in the transverse direction. When the weight per unit is reduced by 62%, the longitudinal tensile strength decreases only by 33% and the transverse tensile strength after the stretching process decreases only by 36%, the ratio of longitudinal strength to transverse increases from 1.93: 1 to 1.64: 1. The desired result was obtained due to the use of a material with a comparatively average perforation density, which provides an increase in the strength of the material to at least 5O%. It is best to use a material with a piercing density in the range of 18О2ОО pr / cm 74. After cooling, it has the following parameters: Weight per unit, Tensile strength, H longitudinal 480 transverse 260 Elongation,% longitudinal 29 transverse102 EXAMPLE 4, Stitched polypropylene filament web having the following parameters: Titer of yarn , dtex10 Weight per unit square, g / m 23O Piercing, pr / cm 200 with needles 15x18x36 / 3 cub. inches, respectively, 85% of the tensile strength attained optimally with the needling, H. a longitudinal 620 transverse 280 Discharge elongation //, transverse 150 is inserted without longitudinal stretching into a tension frame, at a temperature continuously extended in the transverse direction by 80%. After exiting the oven with hot air, it is removed from the stretching frame and is continuously wound. It has the following parameters: Weight per unit. area, g / m Tensile strength, H longitudinal transverse Tensile elongation,% longitudinal transverse The invention improves the strength properties of the material in both the longitudinal and transverse directions. Thus, the choice of the degree of stretching is determined by the problem to be solved, so if it is necessary to increase the tensile strength in the weaker nonepet direction by 15–20%, and the longitudinal strength, then you should choose stretching from 2–30%. The higher the degree of stretching in the weak direction is chosen, the more the tensile strength decreases in the stronger direction. The invention of the method for producing a fibrous material, in which a webs are formed of thermoplastic fibers, is subjected to needling, stretching and losing "processing, characterized in that, in order to improve the strength properties in the longitudinal and transverse directions, heat treatment is carried out at 85 25 С below the point of fused crystals of thermoplastic material of fibers, stretching of materials / bit in the reduction of lower tensile strength to the value exceeding 2020О% of the length of fibrous material, and in the direction, perp Endowed with a direction of lesser strength, before changing its length. Not more than: tlO%. SOURCE information taken into account during the examination 1. Authors of the USSR certificate № 627767, cl. 1) 04 H 1/48, 1978.
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    同族专利:
    公开号 | 公开日
    YU380A|1983-02-28|
    EP0013355B1|1982-02-10|
    MX152229A|1985-06-12|
    FI793962A|1980-07-12|
    AU530367B2|1983-07-14|
    FI63787B|1983-04-29|
    BR8000157A|1980-10-29|
    PL120662B1|1982-03-31|
    AU5437880A|1980-07-17|
    PL221310A1|1980-09-22|
    US4497097A|1985-02-05|
    BG41826A3|1987-08-14|
    RO82802B|1984-01-30|
    FI63787C|1983-08-10|
    AR220806A1|1980-11-28|
    DK10780A|1980-07-12|
    FR2446342B1|1981-04-30|
    DK147487B|1984-08-27|
    DE2962106D1|1982-03-18|
    YU40863B|1986-06-30|
    CA1120244A|1982-03-23|
    FR2446342A1|1980-08-08|
    NO150725B|1984-08-27|
    UA7726A1|1995-12-26|
    DK147487C|1985-03-25|
    HU181004B|1983-05-30|
    NO794199L|1980-07-14|
    RO82802A|1984-01-14|
    DD148650A1|1981-06-03|
    NO150725C|1984-12-05|
    EP0013355A1|1980-07-23|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE4115190A1|1991-05-10|1992-11-12|Akzo Nv|Nonwoven batt mfd. from filaments - has high uniformity as defined by light transmission measurements|GB1134401A|1964-11-21|1968-11-20|Ici Ltd|Nonwoven fabrics and methods of, and apparatus for, making them|
    DE1635634A1|1965-03-11|1970-07-16|Klaus Sievers|Method and device for the production of needle felts|
    GB1213441A|1968-01-04|1970-11-25|Celanese Corp|Improvements in fibrous products|
    US3772417A|1970-10-28|1973-11-13|C Vogt|Method for improving physical properties of spray spun fibrous sheet materials|
    US3747161A|1971-08-20|1973-07-24|Johnson & Johnson|Method for producing a rearranged fabric having improved cross-strength|
    US3808639A|1973-01-15|1974-05-07|Kendall & Co|Apparatus for altering the width, weight and thickness of fabric webs|
    US4154889A|1974-08-19|1979-05-15|Phillips Petroleum Company|Nonwoven fabric, method and apparatus for it's manufacture|
    US4042655A|1975-09-05|1977-08-16|Phillips Petroleum Company|Method for the production of a nonwoven fabric|
    DE2632875C2|1976-04-29|1982-01-14|E.I. du Pont de Nemours and Co., 19898 Wilmington, Del.|Process for the production of a needled nonwoven fabric from crystallized poly fibers and needled, dimensionally stable nonwovens produced therefrom|US4937925A|1983-04-12|1990-07-03|Highland Industries, Inc.|Method for producing reinforced V-belt containing fiber-loaded non-woven fabric|
    EP0156234B2|1984-03-17|2001-01-03|Asahi Kasei Kogyo Kabushiki Kaisha|Heat-resistant non-woven fabric having a high elongation at break|
    DE4024510A1|1990-08-02|1992-02-06|Hoechst Ag|DEEP-DRAWABLE TEXTILE MATERIAL AND MOLDED BODIES MADE THEREOF|
    AT399169B|1993-08-19|1995-03-27|Polyfelt Gmbh|METHOD FOR CONTROLLING THE ANISOTROPY OF SPINNING FLEECE|
    US5657520A|1995-01-26|1997-08-19|International Paper Company|Method for tentering hydroenhanced fabric|
    US5806155A|1995-06-07|1998-09-15|International Paper Company|Apparatus and method for hydraulic finishing of continuous filament fabrics|
    US5870807A|1995-11-17|1999-02-16|Bba Nonwovens Simpsonville, Inc.|Uniformity and product improvement in lyocell garments with hydraulic fluid treatment|
    DE10108092B4|2001-02-19|2007-01-04|Carl Freudenberg Kg|Method of making a tufting carrier|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19792900888|DE2900888A1|1979-01-11|1979-01-11|Spun filament felting - is constructed to have a higher shear resistance in one direction|
    DE19792924652|DE2924652A1|1979-06-19|1979-06-19|Spun filament felting - is constructed to have a higher shear resistance in one direction|LTRP1029A| LT2625B|1979-01-11|1993-09-21|THE FIELD OF FUEL RECOVERY|
    LV931084A| LV5680A3|1979-01-11|1993-09-22|Satisfaction with the acquisition of skeletal material|
    MD94-0154A| MD98C2|1979-01-11|1994-06-21|The method fos preparation the fibrous material|
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