RU2007101786A - Уложенное аэродинамическим способом полотно, скрепленное латексом, и его применение - Google Patents

Уложенное аэродинамическим способом полотно, скрепленное латексом, и его применение Download PDF

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RU2007101786A
RU2007101786A RU2007101786/12A RU2007101786A RU2007101786A RU 2007101786 A RU2007101786 A RU 2007101786A RU 2007101786/12 A RU2007101786/12 A RU 2007101786/12A RU 2007101786 A RU2007101786 A RU 2007101786A RU 2007101786 A RU2007101786 A RU 2007101786A
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nonwoven fabric
fibers
units
crosslinkable
vinyl acetate
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Пол СКОТТ (GB)
Пол СКОТТ
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Силаниз Ималшнз Гмбх (De)
Силаниз Ималшнз Гмбх
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    • C—CHEMISTRY; METALLURGY
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15203—Properties of the article, e.g. stiffness or absorbency
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
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    • D04H1/43918—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece characterised by the shape of the fibres nonlinear fibres, e.g. crimped or coiled fibres
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    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
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    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/50—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by treatment to produce shrinking, swelling, crimping or curling of fibres
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    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
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    • D04H1/587—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by applying, incorporating or activating chemical or thermoplastic bonding agents, e.g. adhesives characterised by the bonding agents used
    • D—TEXTILES; PAPER
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    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
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    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
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Claims (18)

1. Нетканое полотно, уложенное аэродинамическим способом, содержащее комбинацию синтетических волокон и натуральных волокон, которые были скреплены путем нанесения и сшивки дисперсии сшиваемого полимера, который образован свободной радикальной полимеризацией с виниловыми эфирами как основными мономерами, и полученные полимеры содержат сополимеризованные звенья, содержащие сшиваемые N-метилольные группы или их производные, которые были этерифицированы C1-C6 алканолами.
2. Нетканое полотно по п.1, в котором синтетические волокна являются полиэфирными волокнами, предпочтительно волокнами полиэтилентерефталата.
3. Нетканое полотно по п.1, в котором натуральные волокна являются распушенными волокнами.
4. Нетканое полотно по п.3, в котором распушенные волокна являются волокнами распушеной целлюлозы.
5. Нетканое полотно по п.1, в котором используется смесь от 40 до 60 вес.% синтетических волокон с 60: 40 вес.% натуральных волокон.
6. Нетканое полотно по п.1, в котором синтетические волокна имеют извитость, предпочтительно спиральную извитость.
7. Нетканое полотно по п.1, в котором сополимеризованные звенья являются звеньями N-метиламидов акриловой кислоты и метакриловой кислоты, и фракция этих сомономеров, выраженная как доля от полного количества мономеров, составляет до 9 вес.%.
8. Нетканое полотно по п.1, в котором дисперсия сшиваемого полимера содержит в качестве стабилизатора по меньшей мере один эмульгатор, предпочтительно анионный эмульгатор и/или неионный эмульгатор.
9. Нетканое полотно по п.8, в котором сшиваемый полимер является сополимером виниловых эфиров с N-метилолакриламидом, который сшивается путем кислотного катализа в комбинации с водорастворимыми сильными кислотами или их металлическими солями, в частности, солями Cr(III), Al(III), Fe(III) и Zr(IV).
10. Нетканое полотно по п.8, в котором дисперсия сшиваемого полимера является связующим на основе винилацетатэтиленовой эмульсии, содержащим сшивающие звенья мономеров, содержащих N-метилол, очень предпочтительно звенья N-метилолакриламида.
11. Нетканое полотно по п.10, в котором связующее на основе винилацетат-этиленовой эмульсии, содержит сшивающий мономер на уровне по меньшей мере 6%, предпочтительно по меньшей мере 7 вес.% от звеньев сшивающего мономера.
12. Нетканое полотно по п.11, в котором связующее на основе винилацетатэтиленовой эмульсии содержит
a) по меньшей мере 50 вес.% звеньев винилацетата,
b) от 1 до 40 вес.% звеньев этилена,
c) от 6 до 20 вес.% звеньев сшивающего мономера,
d) от 0,1 до 7 вес.% акриламида, метакриламида или их смеси и
e) от 0 до 40 вес.% других сомономеров.
13. Нетканое полотно по п.1, в котором дисперсия сшиваемого полимера имеет температуру стеклования в интервале от -10 до +30°C, наиболее предпочтительно от -0 до +20°C.
14. Нетканое полотно по п.1, в котором дисперсия сшиваемого полимера является сшивающим гомополимером винилацетата или самосшивающимся сополимером винилацетата с этиленом, включающим полимеризованные звенья, содержащие сшиваемые N-метилольные группы или их производные, которые были этерифицированы C1-C6 алканолами, причем сшитые полимеры имеют температуру стеклования в интервале от -10 до +30°C.
15. Нетканое полотно по п.1, в котором синтетические волокна являются волокнами полиэфирного типа с длиной волокна 3-12 мм и толщиной 4-12 дтекс.
16. Применение нетканого материала по п.1 в качестве средства личной гигиены.
17. Применение по п.16, где средство личной гигиены является подгузником или женским гигиеническим продуктом.
18. Применение по п.16, где нетканый материал используется как впитывающий и распределяющий слой в средствах личной гигиены.
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