DE2035760A1 - Highly tear-resistant nonwoven fabric and process for its manufacture - Google Patents

Highly tear-resistant nonwoven fabric and process for its manufacture

Info

Publication number
DE2035760A1
DE2035760A1 DE19702035760 DE2035760A DE2035760A1 DE 2035760 A1 DE2035760 A1 DE 2035760A1 DE 19702035760 DE19702035760 DE 19702035760 DE 2035760 A DE2035760 A DE 2035760A DE 2035760 A1 DE2035760 A1 DE 2035760A1
Authority
DE
Germany
Prior art keywords
binder
fibers
nonwoven fabric
manufacture
film
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.)
Pending
Application number
DE19702035760
Other languages
German (de)
Inventor
Wilhelm 6142 Bensheim Hordt Harald 6940 Weinheim Heling
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 DE2035760A1 publication Critical patent/DE2035760A1/en
Pending legal-status Critical Current

Links

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
    • D04H1/42—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
    • D04H1/4326—Condensation or reaction polymers
    • D04H1/4334—Polyamides
    • 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
    • D04H1/58—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
    • D04H1/64—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 the bonding agent being applied in wet state, e.g. chemical agents in dispersions or solutions

Description

OARLI1REUDENBERa 2035760 ON OARLI 1 REUDENBERa 2035760 ON

Hochreißfester Vliesstoff und Verfahren zu seiher HerstellungHighly tear resistant nonwoven fabric and process to its manufacture

Es ist bereits bekannt, Vliesstoffe durch Imprägnieren von Kunststoff-, insbesondere Nylon-Paservliesen mit Bindemitteln aus natürlichen oder synthetischen Latices oder auch Acrylaten und/oder Vinylpyridinlatex herzustellen. Dabei lagert sich das Bindemittel an den Kreuzungspunkten zweier Pasern in form von sog. Spannsegeln oder Lamellen ab, wie aus Pig. 4 des USA-Patentes 2 719 ersichtlich ist.It is already known to impregnate nonwovens with plastic, in particular nylon, fiber fleeces Manufacture binders from natural or synthetic latices or acrylates and / or vinylpyridine latex. The binding agent is deposited at the crossing points two pasers in the form of so-called tension sails or lamellas, like from Pig. 4 of U.S. Patent 2,719 can be seen.

Die Pasern selbst bleiben dabei im allgemeinen bindemittelfrei; außer an den Kreuzungsstellen finden sich nur hier und da nicht zusammenhängende Bruchstücke von Bindemittelfilmen auf der Oberfläche der Pasern. Dies ist ebenfalls aus Pig. 4 des USA-Patentes 2 7I9 802 ersichtlich.The pasers themselves generally remain binder-free; apart from at the intersections, there are only here and there fragments of binder film that are not connected together on the surface of the fibers. This is also off Pig. 4 of U.S. Patent 2,719,802.

Es wurde nun gefunden, daß man die Reißfestigkeit von bindemittelgebundenen Kunststoffaservliesen um das '5 bis 10-fache erhöhen kann, wenn man dafür sorgt, daß bei der Imprägnierung die Kunststoffasern praktisch auf ihrer gesamten Oberfläche von einer dünnen Haut des Bindemittels überzogen werden und wenn man ferner die Lamellen an den Kreuzungspunkten sehr groß werden läßt.It has now been found that the tear strength of Binder-bound plastic fiber fleeces can increase by '5 to 10 times, if you make sure that the Impregnation of the synthetic fibers practically on their entire Surface of a thin skin of the binder are covered and if you also put the slats on makes the crossing points very large.

Gegenstand der Erfindung ist daher ein hochreißfester Vliesstoff , bestehend aus Synthesefasern, insbesondere Nylonfasern, und einem fumbildenden Bindemittel, welcher Vliesstoff dadurch gekennzeichnet ist, daß sich das filmbildendeThe invention therefore relates to a highly tear-resistant nonwoven, consisting of synthetic fibers, in particular nylon fibers, and a film-forming binder, which is non-woven fabric is characterized in that the film-forming

109810/1956109810/1956

Bindemittel im wesentlichen über die gesamte Oberfläche der Fasern erstreckt und in der Nähe der Faserkreuzungspunkte große Lamellen bildet. Binder essentially over the entire surface of the fibers and forms large lamellae near the fiber crossing points.

Das ebenfalls erfindungsgemäße Verfahren zur Herstellung dieses Vliesstoffes ist dadurch gekennzeichnet, daß man die Synthesefasern vor dem Imprägnieren des Vlieses mit dem Bindemittel derart präpariert, daß sich beim Imprägnieren das Bindemittel im wesentlichen über die gesamte Oberfläche der Fasern verteilt und nicht nur an den Kreuzungspunkten abgelagert wird.The method according to the invention for the production of this nonwoven fabric is characterized in that one the synthetic fibers are prepared prior to impregnation of the fleece with the binder in such a way that during impregnation the binder is distributed essentially over the entire surface of the fibers and not just on the Crossing points is deposited.

Nachstehend werden Ausführungsbeispiele des erfindungsgemäßen Vliesstoffes und des ebenfalls erfindungsgemäßen Verfahrens zu seiner Herstellung näher erläutert.The following are exemplary embodiments of the nonwoven fabric according to the invention and that which is also according to the invention Process for its production explained in more detail.

In der Zeichnung ist ein Ausführungabeispiel des erfindungsgemäßen Vliesstoffes in einem vergrößerten Ausschnitt schematisch dargestellt. Der dargestellte Vliesstoff besteht aus Synthesefasern f, insbesondere Nylonfasern, und einem filmbildenden Bindemittel bo Es ist ersichtlich,, daß das Bindemittel b auf jeder Faser f einen dünnen im wesentlichen zusammenhängenden und praktisch die ganze Oberfläche der Faser bedeckenden Überzug bildet. An den " Kreuzungspunkten der Fasern bildet das Bindemittel ferner große Lamellen.In the drawing, an embodiment of the nonwoven fabric according to the invention is shown schematically in an enlarged section. The nonwoven fabric shown consists of synthetic fibers f, in particular nylon fibers, and a film-forming binder b o It can be seen that the binder b forms a thin, essentially coherent coating covering practically the entire surface of the fiber on each fiber f. The binder also forms large lamellae at the "crossing points of the fibers".

Zur Herstellung dee Vliesstoffes kann man die Kunststofffaser vor dem Imprägnieren derart präparieren daß sich beim Imprägnieren des Bindemittel auf ihr nicht· nur wie üblich an den Kreuzungspunkten bevorzugt ablegt9 sondern praktisch über die ganze Oberfläche der Fasern verteilt wird«, Sine solche Vorbehandlung kann in -verschiedener Weise erfolgen,, ζ0ΒΘ durch forimprägnierea der faeern mit einer verdünnten, 2 bis 8 $=igen Phenollösung oder aber dadurch,, daß man die Kunststoffasern unmittelbar nach ihremTo produce the nonwoven, the plastic fiber can be prepared before impregnation in such a way that when the binding agent is impregnated, it is not only deposited on it, as usual, at the points of intersection 9 but is distributed practically over the entire surface of the fibers. take place in various ways ,, ζ 0 Β Θ by forimprägnierea the fibers with a dilute, 2 to 8 $ = igen phenol solution or by, that one the synthetic fibers immediately after their

Ausspinnen aus einer Düse im noch plastischen Zustand durch eine Gasatmosphäre führt, welche Agenzien erhält, die die Oberfläche entsprechend verändern. Weitere Möglichkeiten zur Verbesserung der Faseroberfläche bestehen durch Aufbringen von organischen Zinnverbindungen, z.B. Dialkylzinnverbindungen oder Triorganozinnsulfiden oder durch Behandeln mit Diglycidäthern.Spinning out of a nozzle in the still plastic state passes through a gas atmosphere containing agents, which change the surface accordingly. There are further possibilities for improving the fiber surface by applying organic tin compounds, e.g. dialkyl tin compounds or triorganotin sulfides or by treating with diglycid ethers.

Eine derart vorpräparierte Faser läßt sich in üblicher V/eise krempeln und in ein Vlies überführen. Dieses Vlies kann dann z.3. in der in der schon genannten USA-Patentschrift 2 719 802 geschilderten Y/eise imprägniert werden, nämlich dadurch, daß man einen Schaum einer wässrigen Dispersion des filmbildenden Bindemittels in das Vlies mittels Walzen einpresst und anschließend trocknet. Selbstverständlich ist man aber für die Imprägnierung nicht auf die Schaumimprägnierung gemäß dem genannten USA-Patent beschränkt, auch jede andere Naßimprägnierung, z.B. mit der Rodney-Huntllaschine, ist möglich (siehe "Nonwoven Fabrics", Francis M, Buresh, New York, Reinhold Publishing Corporation, 1962, Seite 22).A fiber prepared in this way can be processed in the usual manner roll it up and transfer it to a fleece. This fleece can then z.3. in the US patent already mentioned 2 719 802 described Y / iron are impregnated, namely by rolling a foam of an aqueous dispersion of the film-forming binder into the fleece pressed in and then dries. Of course, the impregnation is not limited to the foam impregnation according to the US patent mentioned, either any other wet impregnation, e.g. with the Rodney-Huntl machine, is possible (see "Nonwoven Fabrics", Francis M, Buresh, New York, Reinhold Publishing Corporation, 1962, page 22).

Als Bindemittel kann man die bekannten filmbildenden Bindemittel verwenden, z.B. natürliche oder synthetische Latices, Acrylate und oder Vinylpyridinlatex.The known film-forming binders can be used as binders, e.g. natural or synthetic latices, Acrylates and or vinyl pyridine latex.

1098107195610981071956

Claims (2)

PatentansprücheClaims Hochreißfester Vliesstoff, bestehend aus Synthesefasern, insbesondere Nylonfasern, und einem filmbildenden. Bindemittel, dadurch gekennzeichnet, daß sich das filmbildende Bindemittel im wesentlichen über die gesamte Oberfläche der Fasern erstreckt und in der Nähe der Paserkreuzungspunkte große Lamellen bildet.Highly tear-resistant nonwoven, consisting of synthetic fibers, especially nylon fibers, and a film-forming one. Binder, characterized in that the film-forming binder extends over substantially the entire surface of the fibers and in the Forms large lamellae near the crossover points. 2. Verfahren zur Herstellung des Vliesstoffes nach Patentanspruch 1, dadurch gekennzeichnet, daß man die Synthesefasern vor dem Imprägnieren des Vlieses mit dem Bindemittel derart präpariert, daß sich beim Imprägnieren das Bindemittel im wesentlichen über die gesamte Oberfläche der Pasern verteilt und nicht nur an den Kreuzungspunkten abgelagert wird.2. A method for producing the nonwoven fabric according to claim 1, characterized in that the synthetic fibers prepared prior to impregnation of the fleece with the binder in such a way that during impregnation the binder is distributed essentially over the entire surface of the fibers and not just on the Crossing points is deposited. 1098 10/1 9561098 10/1 956
DE19702035760 1969-08-22 1970-07-18 Highly tear-resistant nonwoven fabric and process for its manufacture Pending DE2035760A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1275769 1969-08-22

Publications (1)

Publication Number Publication Date
DE2035760A1 true DE2035760A1 (en) 1971-03-04

Family

ID=4386116

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19702035760 Pending DE2035760A1 (en) 1969-08-22 1970-07-18 Highly tear-resistant nonwoven fabric and process for its manufacture

Country Status (2)

Country Link
DE (1) DE2035760A1 (en)
FR (1) FR2059622A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3145137A1 (en) * 1981-11-13 1983-06-01 Fa. Carl Freudenberg, 6940 Weinheim "IMPROVES IRONABLE FLEECE AND METHOD FOR THE PRODUCTION THEREOF"

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB599682A (en) * 1943-06-18 1948-03-18 Sponge Rubber Products Company Improvements in or relating to padding and like materials
FR986657A (en) * 1943-12-02 1951-08-03 Colombes Goodrich Pneumatiques Improvements in rubber processing, including the incorporation of textile materials
BE470162A (en) * 1946-01-26 1900-01-01
US2784132A (en) * 1953-05-11 1957-03-05 Fiber Bond Corp Air permeable fibrous batt
US2879197A (en) * 1956-04-19 1959-03-24 Fiber Bond Corp Foamable pad and method of making same
US3108010A (en) * 1960-07-25 1963-10-22 Yokohama Rubber Co Ltd Method of treating rubber-reinforcing fibrous material for improving heat resistance thereof
DE1403642A1 (en) * 1960-12-08 1968-10-17 Carborundum Co Scouring pads
FR1427719A (en) * 1963-11-20 1966-02-11 Glanzstoff Ag New process for improving the adhesion to rubber of polyethylene enterphthalate yarns or fabrics intended for fabric covering tires
US3477902A (en) * 1965-10-14 1969-11-11 Radiation Res Corp Process for making tires by exposure to an ionized gas and treatment with resorcinol-formaldehyde/latex composition and the product

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3145137A1 (en) * 1981-11-13 1983-06-01 Fa. Carl Freudenberg, 6940 Weinheim "IMPROVES IRONABLE FLEECE AND METHOD FOR THE PRODUCTION THEREOF"

Also Published As

Publication number Publication date
FR2059622A1 (en) 1971-06-04
FR2059622B1 (en) 1973-08-10

Similar Documents

Publication Publication Date Title
DE1102693B (en) Needled nonwoven fabric and process for its manufacture
DE1962331C3 (en) Wound dressing material
DE2732287C3 (en) Process for producing an insole material provided with activated carbon
DE2035760A1 (en) Highly tear-resistant nonwoven fabric and process for its manufacture
EP2835462A1 (en) CV floor lining containing nonwoven fabric and nonwoven fabric
DE1635494B2 (en) NEEDLEBALL CARPET AND METHOD OF MANUFACTURING THEREOF
DE1560868C3 (en) Process for the production of a short fiber nonwoven
DE316636C (en)
DE1571503C3 (en) Rollable fiber body
DE564709C (en) Material made from fibers and synthetic resins converted into pile form
DE1635494C3 (en) Needle felt carpet and process for its manufacture
AT225148B (en) Process for impregnating loose nonwovens
DE173477C (en)
DE1801800A1 (en) Needled carpet
DE2324891A1 (en) METHOD OF MANUFACTURING NON-WOVEN PRODUCTS LIKE FIBER FIBER FIBER
DE4214870C2 (en) Process for the production of a flat fabric using textile waste material and textile fabric produced thereafter
EP0538625A1 (en) Textile floor covering
DE746183C (en) Process for the production of a tabular fiber material
DE1239059B (en) Cover for sanitary napkins
DE1479902C (en) Method of manufacturing a long sponge body from thermoplastic resin
DE1785653C3 (en) Soft, absorbent fiber fleece
DE102008011498A1 (en) Roller i.e. calendar roller, for treating coated paper, has outer lining provided with fibers, where part of fibers has same material as that of embedding-material or material with similar characteristics with respect to abrasion resistance
DE7334348U (en) WEB OF ABSORBENT FIBERS
DE1288057B (en) Composite railway
DE2606921B2 (en) Filter mat for hydraulic engineering and the coating of drainage pipes