EP0081218B1 - Procédé de fabrication d'une nappe de fibres - Google Patents

Procédé de fabrication d'une nappe de fibres Download PDF

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Publication number
EP0081218B1
EP0081218B1 EP82111235A EP82111235A EP0081218B1 EP 0081218 B1 EP0081218 B1 EP 0081218B1 EP 82111235 A EP82111235 A EP 82111235A EP 82111235 A EP82111235 A EP 82111235A EP 0081218 B1 EP0081218 B1 EP 0081218B1
Authority
EP
European Patent Office
Prior art keywords
mat
fibres
fibers
stretched
binder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP82111235A
Other languages
German (de)
English (en)
Other versions
EP0081218A2 (fr
EP0081218A3 (en
Inventor
Miichiro Kawamura
Mitsuru Fujihashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carl Freudenberg KG
Original Assignee
Carl Freudenberg KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Carl Freudenberg KG filed Critical Carl Freudenberg KG
Publication of EP0081218A2 publication Critical patent/EP0081218A2/fr
Publication of EP0081218A3 publication Critical patent/EP0081218A3/de
Application granted granted Critical
Publication of EP0081218B1 publication Critical patent/EP0081218B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • 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
    • 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
    • D04H1/46—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 needling or like operations to cause entanglement of fibres
    • D04H1/48—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 needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation
    • D04H1/49—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 needling or like operations to cause entanglement of fibres in combination with at least one other method of consolidation entanglement by fluid jet in combination with another consolidation means

Definitions

  • the invention relates to a process for the production of a nonwoven fabric, in which the fibers used are assembled over a large area to form a mat, intertwined by jets of a fluid medium directed against the surface and then bonded.
  • the invention has for its object to show a method for producing a dimensionally stable nonwoven that ensures the achievement of a high modulus. This is to be understood as the force required for a 5% stretch.
  • This object is achieved according to the invention in a method of the type mentioned at the outset by impregnating the fiber mat consisting of interwoven fibers with a binder, linearly stretching at least 20% linearly at least in the transverse direction and drying in stretched form with solidification of the binder.
  • the proposed method is particularly suitable for the production of dimensionally stable nonwovens with a weight per unit area of 20 to 80 g / m 2 , and in addition to good tensile stability, they are notable for particularly low elongation in the width direction.
  • the high dimensional stability enables the nonwovens to be mechanically connected to an outer fabric by means of a needling process.
  • they can serve as stiffening materials in this case, but when using chemically activatable fibers they can also be used as binding materials for the subsequent laminating of the laminate onto a carrier.
  • An embodiment has proven to be particularly suitable for this purpose, which can be obtained if the fiber mat consisting of interwoven fibers is produced from hot water-soluble polyvinyl alcohol fibers, if it is impregnated with the aqueous solution of a water-soluble resin and at least transversely stretched by at least 20% linearly and when drying below the softening temperature of the fibers.
  • the softening temperature of the aforementioned fibers in hot water is approximately in the range between 40 and 90 ° C. The drying must therefore be carried out in such a way that the specified temperature interval is not reached.
  • the solubility in water can be increased by adding alkali-saponified polyvinyl acetate. This can be mixed with other resins to further increase solubility.
  • the hot water-soluble polyvinyl alcohol fibers are flatly assembled into a mat by known methods, for example using a carding machine or an air layer.
  • the thus formed, uncompressed and relatively unstable mat is exposed to the action of liquid or gas jets directed against the surface.
  • the fiber mat thus obtained is then sprayed or impregnated with the aqueous solution of a water-soluble resin or the like. It is then stretched by at least 20% at least in the transverse direction, preferably by 40% or more.
  • the forces exerted on the fiber mat by the stretching process result in a particularly large elongation of the fibers in the loosened surface areas and thus a strong increase in tensile strength and elongation stability in these areas.
  • the other areas in which significantly more fibers are stored in a confined space, are characterized by a greater accumulation of binding agent due to the greater effectiveness of capillary forces, thus overall seen by a strong agglomeration of materials, which is stabilized by the drying process, and here as well results in high stretch stability.
  • the content of the binder is at least 60% by weight, preferably at least 70%.
  • the fibers contained in the surface areas of a high fiber density are not significantly stretched by the at least transverse stretching of the fiber mat used. They have a large residual elongation and are able to withstand the mechanical stress caused by the needles penetrating during a subsequent needling process without damage and breakage. Even a needling process is therefore not able to significantly alter the nonwovens obtainable by the proposed method with regard to their elongation modulus.
  • the binders used in the proposed process are preferably water-soluble resins such as polyvinyl alcohol, polyethylene oxide, hydroxyalkyl cellulose, carboxymethyl cellulose, polyacrylamide, polyvinyl pyrrolidone, polyacrylate, starch and the like.
  • Polyvinyl alcohol is considered in terms of film Ending properties, the solution time, the treatability of the solution and preferably used because of similar advantages, especially with respect to the treatment of fiber mats made of polyvinyl alcohol fibers.
  • the nonwovens obtainable by the proposed method achieve an elongation of 10% only when loaded with 1 kg / cm or more. They are undesirably stretched or changed in shape and are less suitable as binding materials if a corresponding stretch already occurs at a lower load.
  • the resulting mat was transferred to a 30 mesh wire screen and exposed to water jets to intertwine the fibers.
  • the water had a pressure of 40 kg / cm 2 . It was directed through nozzles against the surface of the mat, which was 0.3 mm in diameter.
  • the inherently stable fiber mat thus obtained was then impregnated with a 1.5% strength aqueous solution of water-soluble polyvinyl alcohol resin, stretched in the transverse direction by 50% and dried in this form.
  • the nonwoven fabric obtained is excellently suitable as a binding material and shows a 10% elongation only when loaded with 1.5 kg / cm. The elongation at break was 15%.
  • the needles that are inserted during the needling process are not deflected sideways to any appreciable extent, whereby a precise needling pattern is obtained while avoiding frequent needle breaks.
  • the nonwoven fabric is characterized by a high elongation modulus and can be dissolved in a remarkably short time by activating its adhesive forces, which is advantageous in relation to the lamination of substrates with a laminate needled with the nonwoven fabric.
  • the nonwovens obtainable by the proposed method are therefore extremely suitable for such chemical bonding purposes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Nonwoven Fabrics (AREA)
  • Decoration Of Textiles (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Automatic Embroidering For Embroidered Or Tufted Products (AREA)

Claims (3)

1. Procédé pour la fabrication d'une nappe de fibres dans lequel les fibres utilisées sont stratifiées en une nappe plane et dans lequel elles sont enchevêtrées au moyen de jets de fluide dirigés contre la surface extérieure et ensuite collées, caractérisé en ce que la nappe constituée de fibres enchevêtrées est imprégnée d'un agent de liage, étirée au moins dans le sens transversal d'au moins 20% linéaires et séchée à l'état étiré, avec solidification de l'agent de liage.
2. Procédé selon la revendication 1, caractérisé en ce que, comme fibres, on utilise des fibres d'alcool polyvinylique solubles dans l'eau chaude et, comme agent de liage, la solution aqueuse d'une résine soluble dans l'eau chaude, et en ce que le séchage s'opère à une température inférieure à la température de ramollissement des fibres.
3. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce que la nappe imprégnée de l'agent de liage est étirée au moins dans le sens transversal d'au moins 40% linéaires.
EP82111235A 1981-12-07 1982-12-04 Procédé de fabrication d'une nappe de fibres Expired EP0081218B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP56197461A JPS5898464A (ja) 1981-12-07 1981-12-07 ケミカルレ−ス用基布の製造方法
JP197461/81 1981-12-07

Publications (3)

Publication Number Publication Date
EP0081218A2 EP0081218A2 (fr) 1983-06-15
EP0081218A3 EP0081218A3 (en) 1983-11-30
EP0081218B1 true EP0081218B1 (fr) 1985-03-20

Family

ID=16374881

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82111235A Expired EP0081218B1 (fr) 1981-12-07 1982-12-04 Procédé de fabrication d'une nappe de fibres

Country Status (4)

Country Link
US (1) US4570311A (fr)
EP (1) EP0081218B1 (fr)
JP (1) JPS5898464A (fr)
DE (1) DE3262715D1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10032769A1 (de) * 2000-07-05 2002-01-24 Freudenberg Carl Fa Wasserlösliche Stickerei-Fixiereinlage

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60162850A (ja) * 1984-01-30 1985-08-24 金井　宏之 水溶性繊維シ−ト
US5062161A (en) * 1988-12-16 1991-11-05 Golden Needles Knitting And Glove Co., Inc. Method of making garment, garment and strand material
US5111760A (en) * 1989-06-22 1992-05-12 Garzone Jr Raymond G Double-embroidered lace
US5009747A (en) * 1989-06-30 1991-04-23 The Dexter Corporation Water entanglement process and product
US5060350A (en) * 1990-11-08 1991-10-29 Milliken Research Corporation Method to manufacture tubular woven fabric
FR2679573B1 (fr) * 1991-07-25 1993-09-24 Perfojet Sa Procede pour la fabrication d'une nappe non tissee lavable a base de coton, et nappe ainsi obtenue.
JP2755361B2 (ja) * 1993-06-30 1998-05-20 徹 糸井 多重織物の製造方法
NL1006059C2 (nl) 1997-05-14 1998-11-17 Geest Adrianus F Van Der Werkwijze en inrichting voor het vervaardigen van een vormlichaam.
US6420284B1 (en) 1999-03-26 2002-07-16 Isolyser Company, Inc. Poly (vinyl alcohol) wipes
CA2365849A1 (fr) * 1999-03-26 2000-10-05 Isolyser Company, Inc. Non tisse lace par filage de poly(alcool vinylique)
TR200101685A1 (tr) * 2001-06-21 2002-11-21 Carl Freudenberg Suda eriyen nakış sabitleme dolgusu.
DE502004004972D1 (de) * 2003-07-16 2007-10-25 Fleissner Gmbh Vollsynthetisches wischtuch, verfahren und anlage zur herstellung des wischtuches
US7378360B2 (en) * 2003-12-17 2008-05-27 Kimberly-Clark Worldwide, Inc. Water dispersible, pre-saturated wiping products
CN101124361B (zh) * 2005-03-25 2010-05-19 可乐丽股份有限公司 烂花花边用基布及其制造方法
DE102009049802A1 (de) * 2009-10-16 2011-04-21 Carl Freudenberg Kg Wasserlösliche Haftmassenbeschichtung für wasserlösliche Einlagestoffe
US10487480B2 (en) 2015-11-03 2019-11-26 Monk Intellectual Properties, Llc Water leak detection and prevention device
US10876646B2 (en) 2015-11-03 2020-12-29 Monk Intellectual Properties, Llc Leak detection and prevention device
CN112442771B (zh) * 2020-11-13 2022-03-08 浙江羊绒世家服饰股份有限公司 一种水溶性纤维和高支羊绒纱纺制工艺

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2365315A (en) * 1942-04-10 1944-12-19 Du Pont Manufacture of fabrics
US3315329A (en) * 1963-10-21 1967-04-25 Kurashiki Rayon Co Process for the manufacture of chemical lace
US3377678A (en) * 1965-12-27 1968-04-16 Nihon Vinylon Co Ltd Half-soluble special fabric and a method of manufacturing embroidery lace thereon
US3873255A (en) * 1971-01-27 1975-03-25 Johnson & Johnson Apparatus for producing nonwoven fabric
GB1460381A (en) * 1973-06-22 1977-01-06 Houdaille Industries Inc Torsional vibration dampers
US3966522A (en) * 1974-05-23 1976-06-29 Hitco Method of making woven acoustical panel
PH15660A (en) * 1979-02-15 1983-03-11 Chicopee Nonwoven fabric and method for producing the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10032769A1 (de) * 2000-07-05 2002-01-24 Freudenberg Carl Fa Wasserlösliche Stickerei-Fixiereinlage
DE10032769C2 (de) * 2000-07-05 2003-12-04 Freudenberg Carl Kg Wasserlösliche Stickerei-Fixiereinlage und Verfahren zu desen Herstellung

Also Published As

Publication number Publication date
JPH0118182B2 (fr) 1989-04-04
EP0081218A2 (fr) 1983-06-15
DE3262715D1 (en) 1985-04-25
US4570311A (en) 1986-02-18
EP0081218A3 (en) 1983-11-30
JPS5898464A (ja) 1983-06-11

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