• 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:SU841599A3
    申请号:SU792788602
    申请日:1979-06-21
    公开日:1981-06-23
    发明作者:Хольст Арно；Майер Рейнхарт；Фишер Вильхельм
    申请人:Хехст Аг (Фирма)；
    IPC主号:
    专利说明:

    (54) METHOD FOR OBTAINING FIBROUS MATERIAL
    This invention relates to industrial TT. spines of plastics and the development of a method for producing a fibrous material. A known method for producing a fibrous material includes impregnating fibrous canvas with carboxyl-containing nitrile latex and subsequent drying. However, the known method does not improve the ability to absorb water vapor from the canvas. The purpose of the invention is to increase the ability to absorb water vapor. This aim is achieved in that in the method for producing fibrous material, comprising impregnating fibrous web karboksilsoderzhaschi butadiene latex and then drying the impregnated web of fibers based on a mixture of hydrate 1hellyulozy and a polymer selected from the HRU nN: sodium salt poliakrilovby kis lots, saponified polyacrylonitrile, natrievs1Ya salt carboxymethylcellulose in a ratio of 2.33 to 7.33: 1, respectively, or a combination of the said fiber with 25:75 polyester fiber. Example 1. 80 g of sodium acrylate of polyacrylic acid is dissolved in 1 l of 5% aqueous solution of NaOH and fed with a dosing pump into the pipeline with viscose of the plant to produce fiber from cellulose hydrate, before spinning. From the viscose thus modified, the fiber is spun in the usual way and then subjected to subsequent processing. The weight ratio between the hydrated golose hydrate and the sodium salt of polyacrylic acid is 2.33: 1. 15% of the modified fiber from cellulose hydrate (3.6 dTH, 30 mm length) is loosened with 85% polyester fiber (1.7 dTH, 40 mm length) on the top and fed into the mixing chamber, after which the mixture is combed, stitched and the resulting scrim is bonded with carboxyl-containing butadiene nitrile (perbunan) latex, with the binder content in the resulting nonwoven fabric being about 50%. Example 2. The process for producing non-woven material is the same as in Example 1, but 90 g of partially saponified polyacrylonitrile is used as a modifying agent, and the weight ratio of cellulose hydrate and modifying it is 7.33: 1. Example 3. The process for producing a nonwoven material is the same as in Example 1, but as a modifying agent, 100 g of carboxymethylcellulose sodium salt are used with a weight ratio of cellulose hydrate and modifying agent 3.17; Example 4: The process for producing a nonwoven fabric is the same as in Example 1, but using 25% modified cellulose hydrate based fiber and 75% polyester fiber. Example 5 The process for producing a nonwoven fabric is the same as in Example 2, but using 25% modified cellulose hydrate based fiber and 75% polyester fiber. Example B. Modified VOLO1SNO based on cellulose hydrate, obtained in accordance with Example 1, was sized 5 without first being biased with unmodified fiber. in the table, the glued nonwoven materials in accordance with Examples 1-6 are compared in terms of their ability to absorb water vapor with a known material (100% polyester fiber, 1.7 dtech, 40 mm length) that does not contain modified fibers based on cellulose hydrate. The absorption of water vapor (PVP gg-) is determined after holding the sample for a certain period of time (4 or 8 hours) in a chamber with a relative humidity of 95% at. As the initial state, the state of the sample is taken after keeping it in a chamber with a relative humidity of 50%. PVP JY is determined in the same way, but after holding the sample in a chamber with relative humidity of 91%.
    权利要求:
    Claims (1)
    [1]
    Claim
    A method of producing a fibrous material, comprising impregnating a fibrous canvas with carboxyl-containing butadiene nitrile latex and subsequent drying, characterized in that, in order to increase the ability to absorb water vapor, the canvas is impregnated with fiber based on a mixture of * cellulose hydrate and a polymer selected from the group: sodium salt polyVNII -PI Order 4881/85 obtained in accordance with Example 1 is glued without prior displacement with unmodified fiber.
    In the table, bonded non-woven materials in accordance with examples 1-6 are compared in terms of their ability to absorb water vapor with a known material (100% polyester fiber, 1.7 dtech, 40 mm in length) that does not contain modified fibers based on cellulose hydrate. The absorption of water vapor (PVP gg-) is determined after holding the sample for a certain period of time (4 or 8 hours) in a chamber with a relative humidity of 95%, at 23 ° C. As the initial state, take the state of the sample after holding it in a chamber with a relative humidity of 50%. PVPsc is determined in the same way, but after holding the sample in a chamber with a relative humidity of 91%.
    acrylic acid, saponified polyacrylonitrile, sodium salt of carboxymethyl cellulose, in the ratio of 2.33-7.33: 1, respectively, or a combination of the specified fiber with a 25:75 polyester fiber.
    类似技术:
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    同族专利:
    公开号 | 公开日
    JPS556590A|1980-01-18|
    PL119457B1|1982-01-30|
    PL216554A1|1980-03-10|
    DD144428A5|1980-10-15|
    DE2827804A1|1980-01-10|
    US4336299A|1982-06-22|
    EP0006552A1|1980-01-09|
    CS212323B2|1982-03-26|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    JPS491241B1|1969-10-24|1974-01-12|
    US3844287A|1972-06-05|1974-10-29|Fmc Corp|Absorbent mass of alloy fibers of regenerated cellulose and polyacrylic acid salt of alkali-metals or ammonium|
    US4136697A|1972-11-24|1979-01-30|Avtex Fibers Inc.|Fibers of high fluid-holding capacity|
    US4063558A|1975-11-07|1977-12-20|Avtex Fibers Inc.|Article and method for making high fluid-holding fiber mass|
    US3872196A|1972-12-04|1975-03-18|Tee Pak Inc|Process for plasticizing and partially drying tubular film casings for edible products|
    US4066584A|1975-08-11|1978-01-03|Akzona Incorporated|Alloy fibers of rayon and copolymers of acrylic and methacrylic acids|
    US4104214A|1976-12-01|1978-08-01|Akzona Incorporated|Fluid absorbent cellulose fibers containing alkaline salts of polymers of acrylic acid, methacrylic acid or an acryloamidoalkane sulfonic acid with aliphatic esters of acrylic acid or methacrylic acid|
    DE2710874A1|1977-03-12|1978-09-14|Hoechst Ag|WATER VAPOR ABSORBENT, BONDED FIBER FLEECE|
    US4169121A|1977-09-09|1979-09-25|Helmut Pietsch|Absorbent material for aqueous physiological fluids and process for its production|DE3630937C2|1986-09-11|1990-02-08|Rehau Ag + Co, 8673 Rehau, De|
    US5266250A|1990-05-09|1993-11-30|Kroyer K K K|Method of modifying cellulosic wood fibers and using said fibers for producing fibrous products|
    JP3170366B2|1992-11-09|2001-05-28|カネボウ株式会社|Freshness retention sheet|
    US5688923A|1996-02-15|1997-11-18|Hercules Incorporated|Pectin fibers|
    US6146655A|1997-08-29|2000-11-14|Softy-Flex Inc.|Flexible intra-oral bandage and drug delivery system|
    US6689242B2|2001-03-26|2004-02-10|First Quality Nonwovens, Inc.|Acquisition/distribution layer and method of making same|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    DE19782827804|DE2827804A1|1978-06-24|1978-06-24|USE OF MODIFIED CELLULOSEHYDRATE FIBERS FOR TIED FIBER FABRICS|
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