DE1469351A1 - Process for strengthening nonwovens - Google Patents
Process for strengthening nonwovensInfo
- Publication number
- DE1469351A1 DE1469351A1 DE19641469351 DE1469351A DE1469351A1 DE 1469351 A1 DE1469351 A1 DE 1469351A1 DE 19641469351 DE19641469351 DE 19641469351 DE 1469351 A DE1469351 A DE 1469351A DE 1469351 A1 DE1469351 A1 DE 1469351A1
- Authority
- DE
- Germany
- Prior art keywords
- nonwovens
- parts
- fleece
- liquor
- isocyanate groups
- 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.)
- Granted
Links
Classifications
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- 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
- D04H1/645—Impregnation followed by a solidification process
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/08—Processes
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
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- 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
- D04H1/425—Cellulose series
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- 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
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- 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
- D04H1/587—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
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/227—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated
- D06M15/233—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of hydrocarbons, or reaction products thereof, e.g. afterhalogenated or sulfochlorinated aromatic, e.g. styrene
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/244—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons
- D06M15/248—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of halogenated hydrocarbons containing chlorine
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/285—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated carboxylic acid amides or imides
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/21—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/31—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds of unsaturated nitriles
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D06M15/564—Polyureas, polyurethanes or other polymers having ureide or urethane links; Precondensation products forming them
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/693—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural or synthetic rubber, or derivatives thereof
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Nonwoven Fabrics (AREA)
- Polyurethanes Or Polyureas (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Description
Gegenstand der vorliegenden Erfindung ist ein Verfahren zur Verfestigung von Vliesen; das Verfahren besteht darin, daß man die Vliese mit einer wäßrigen Flotte behandelt, die a) aus Vinyl- oder Divinylmonomeren hergestellte Polymerisate oder Mischpolymerisate, die zur Reaktion mit Isocyanaten befähigte Gruppen besitzen und b) Isocyanatgruppen enthaltende UmsetzimgK-produkte, welche aus mindestens 2 Hydroxylgruppen tragenden Verbindungen vom Molekulargewicht 500 - '3000 und Polyisocyanaten hergestellt sind, enthält.The present invention is a method for Consolidation of nonwovens; the process consists in treating the nonwovens with an aqueous liquor which a) consists of Polymers produced from vinyl or divinyl monomers or Copolymers which have groups capable of reacting with isocyanates and b) reaction products containing isocyanate groups, which have at least 2 hydroxyl groups Compounds with a molecular weight of 500-3000 and polyisocyanates are produced.
Zu den aus Vinyl- oder Divinylmonomeren hergestellten und zur Reaktion mit Isocyanaten befähigte Griippen besitzenden Polymerisaten und Mischpolymerisaten gehören beispielsweise solche Polymerisate oder Mischpolymerisate, die aus Acryl- oder Methacrylsäure oder aus deren zur Reaktion mit Isocyanatgruppen befähigten Estern, z.B. den Hydroxyalkylcstern, oder Amiden erhältlich sind, gegebenenfalls durch Mischpolymerisation mit anderen olefinisch ungesättigten Verbindungen, wie Äthyler, Propylen, Vinylchlorid, Vinylacetat, Vinylether, z.B. Vinyläthyläther, Styrol, Divinylbensol, Butadien, Isopren, ChI ο ro pro..-: ■ ferner jene Mischpolymerisate, die erhältlich Bind, wenn man N-Methylo.1a-rylamldj N-Methylolmcthacrylamid oder deren durchThe polymers and copolymers produced from vinyl or divinyl monomers and capable of reacting with isocyanates include, for example, those polymers or copolymers obtainable from acrylic or methacrylic acid or from their esters capable of reacting with isocyanate groups, e.g. the hydroxyalkyl groups or amides , optionally by copolymerization with other olefinically unsaturated compounds such as ethyl, propylene, vinyl chloride, vinyl acetate, vinyl ethers, for example vinyl ethyl ether, styrene, divinyl benzene, butadiene, isoprene, ChI ο ro pro ..-: ■ also those copolymers that are available Bind, if one N-Methylo.1a-rylamldj N-Methylolmcthacrylamid or their by
909806/0919 BAD ORIGINAL909806/0919 BATH ORIGINAL
Le A 8966 - 1 - Le A 8966 - 1 -
Neue Unterlagen cm. 711 α*. 2 H, ·, £aU 3 dcs ä^w*. v. 4.New documents cm. 711 α *. 2 H , ·, £ aU 3 dcs ä ^ w *. v . 4th
U69351U69351
Umsetzung mit mindestens eine weitere funktionelle Gruppe enthaltenden Alkoholen bereiteten Abköcualingen mit anderen olefinisch umgesättigten Verbindungen aiBchpolymorisiert, z.B. gemäß dem Verfahren der französischen Patentschrift 1 328 255.Implementation with at least one other functional group containing alcohols prepared abbreviations with others olefinically unsaturated compounds aiBchpolymorisiert, e.g. according to the method of French patent 1 328 255.
Za du* BiiidMtttUL swel Hydroxylgruppe* tragenden YerblndoBgeB tob Molekulargewicht 500 - 3000, dl· des t rf lud OBgSgMlUI s* verwendenden ÜBeetsungeprodukten b) zugrunde liegen, gofcftroB beispielsweise Poly&thylenglykole, Polypropylenglykol·, PoIybutylenglykol· oder Polyhexylenglykole, ferner die Polyester, die aus al^hatiackoB Dicarboneäuren, wie Bernsteinsäure» Adipinsäure, Sebacinsäure oder Maleinsäure, und Polyalkoholen, wie Aethylenglykol, Diäthyleng." ykol, Fropylenglykol» Batandlol oder leopentylgikjol, erbäElich sind. Berorsogt sind solch· Vertindongen^ deree Molekulargewicht Ib Bereich ron 800 - 2200 liegt und deren OH-Zahl einen Wert von 30 - 250 hat.Za du * BiiidMtttUL swel hydroxyl group * bearing YerblndoBgeB tob molecular weight 500 - 3000, dl des t rf lud OBgSgMlUI s * Use b) bedding products are based on b) gofcftroB for example polyethylene glycols, polypropylene glycol, polybutylene glycol or polyhexylene glycols, also the polyesters, those from al ^ hatiackoB dicarboxylic acids, such as succinic acid » Adipic acid, sebacic acid or maleic acid, and polyalcohols, such as ethylene glycol, diethylene glycol, fropylene glycol, batandlol or leopentylgikjol, are hereditary. Berorsogt are such Vertindongen ^ deree molecular weight Ib range ron 800 - 2200 and their OH number has a value of 30 - 250.
FUr die Herstellung der Umsetsungsprodukte b) kosmen als Polyisocyanate vorzugsweise aliphatisch.« und cycloaliphatische Diisocyanate in Betracht. Genannt seien beispielsweise Tetramethylendiisocyanat, Hexamethylendiisocyanat, 1,4-Oyclohezandiisocyanat, 4,4'-DicycloheiylBethandiieooyanat sowlo 2,4- und 2,6-Hexahydrotoluylendiisocyanat. Geeignet sind ferner auch aroBatische Diisocyanate, wie p-Fhenylendiisocyanat und 2,4- oder 2,6-Toluylendiiaocyanat, sowie Triisocyanate, wie das aus 3.MoI Hexamethylendiisocyanat und 1 Mol Wasser erhältliche For the preparation of the reaction products b) aliphatic and cycloaliphatic diisocyanates are preferably used as polyisocyanates. Examples include tetramethylene diisocyanate, hexamethylene diisocyanate, 1,4-cyclohezane diisocyanate, 4,4'-dicycloheylbethane diisocyanate and 2,4- and 2,6-hexahydrotolylene diisocyanate. Also suitable are aromatic diisocyanates, such as p-phenylene diisocyanate and 2,4- or 2,6-tolylene diisocyanate, and triisocyanates, such as that obtainable from 3.MoI hexamethylene diisocyanate and 1 mol of water
909806/0919
Le A 8986 - 2 - BAD 0RIGINAL 909806/0919
Le A 8986 - 2 - BATHROOM 0RIGINAL
Umsetiungsprodukt der Formel 0CH-(CH2)6-s£C0HH-(CH2).6-HCq£. Di· Herstellung der Isocyanatgruppen besitzenden Umsetzungsprodukte kann in an sich bekannter Weise erfolgen, indem man die Mindesten· swei Hydroxylgruppen tragenden Verbindungen mit eines: auf den Hydroxyl gehalt berechneten stb'chiometrischen überschau an Polyisocyanaten bei erhöhten Temperaturen umsetzt» Die Isocyanatgruppen besitzenden Umsetzungsprodukte können gewünschtenfall· auch in Form der bekannten Biaulfit-Additioneprodukte eingesetzt werden.Conversion product of the formula OCH- (CH 2 ) 6 -s £ COHH- (CH 2 ). 6 -HCq £. The reaction products containing isocyanate groups can be prepared in a manner known per se by reacting the at least two hydroxyl group-bearing compounds with a stoichiometric overview of polyisocyanates calculated on the hydroxyl content at elevated temperatures. can also be used in the form of the known biaulphite addition products.
Sie Behandlung der Vliese mit den erfindungsgemäß in Betracht f kommenden Flotten erfolgt nach den bekannten VerfestigungsmethodensYou treatment of the nonwovens with the inventive f Coming liquor takes place according to the known solidification methods
Sa· Bindemittel wird beispielsweise in form einer wäßrigen Flotte oder eines Schaumes aus dieser Flotte appliziert. Der Anteil de· Bindemittels an dem Gesamtgewicht der wäßrigen Flotte kann naturgemäß in weiten Grenzen schwanken. Sr beträgt im allgemeinen ca 5 H bis 70 + und liegt vorteilhafter weise bei ca 25 1· bis 50 + des Gewichts der wäßrigen Flotte. Das Verhältnis der beiden Bindemittel a) und b) untereinander kann -gleichfalls stark variieren und liegt beispielsweise im Bereich ▼on 1H bi· 4t1 (aib).Sa · binder is applied, for example, in the form of an aqueous liquor or a foam from this liquor. The proportion of the binder in the total weight of the aqueous liquor can of course vary within wide limits. Sr is generally about 5 H to 70 + and is advantageously about 25 1 · to 50 + the weight of the aqueous liquor. The ratio of the two binders a) and b) to one another can also vary widely and is, for example, in the range ▼ on 1H to 4t1 (aib).
lach der Imprägnierung wird die Ubersohüssige Flott· bzw. der Schaum abgequetscht (der Abquetscheffekt liegt beispielsweise bei 5 £ bis 100 % Binderaufnahme) und das Vlies einem Trockner zugeführt. Außerdem kann mit den erwähnten Flotten eine Oberflächenverfestigung des Vlieaes durch Aufsprühen, PflatschenAfter the impregnation, the excess liquor or the foam is squeezed off (the squeezing effect is, for example, from 5 to 100 % binder absorption) and the fleece is fed to a dryer. In addition, the above-mentioned liquors can be used to strengthen the surface of the fleece by spraying on or patting
909806/0919 Bad original909806/0919 bathroom original
Le A 8986 - ? -Le A 8986 -? -
oder Aufrakeln der verdickten Flotte oder eine· Bindereohaum·· erzielt werden. line Hitzebehandlung nach der Trocknung, wie «ie üblicherweise beim Verfestigen von Vliesen unter Zusats der bekannten vernetzbaren Bindemittel erforderlich ist, kann im vorliegenden Fall unterbleiben.or squeegeeing the thickened liquor or a · Bindereohaum ·· be achieved. line heat treatment after drying, such as «ie usually when consolidating nonwovens with the addition of known crosslinkable binder is required, can be omitted in the present case.
Nach dem erfindungsgemäßen Verfahren lassen sich Vliese au« verschiedenartigsten Fasern natürlicher oder synthetischer Herkunft, beispielsweise aus Baumwolle, regenerierter Cellulose, Celluloseestern, Wolle, regenerierten Proteinen, Polyacrylnitril, Polyamiden, Polyurethanen, Polyestern, Polyolefinen, Polyvinylchlorid, Polyvinylalkohol und Polycarbonaten au Vliesstoffen verfestigen.According to the method according to the invention, nonwovens can be a wide variety of fibers of natural or synthetic origin, for example cotton, regenerated cellulose, Cellulose esters, wool, regenerated proteins, polyacrylonitrile, polyamides, polyurethanes, polyesters, polyolefins, polyvinyl chloride, polyvinyl alcohol and polycarbonates from nonwovens solidify.
Die mechanischen Eigenschaften der erhaltenen Vliesstoffe sind sehr gut, der Griff variiert je i.ach der Zusammensetzung der Binderflotten von weich bis hart. Die Gebrauchstüchtigkeit der Vliesstoffe wird durch Naß- oder Trockenreinigung.nicht beeinflußt.The mechanical properties of the nonwovens obtained are very good, the feel varies depending on the composition of the Binder liquors from soft to hard. The usability of the Nonwovens are not affected by wet or dry cleaning.
Unter dem Begriff "Vlies" sind hier aus losen Fasern bestehend· lin- oder Mehrlagenflore zu verstehen, in denen die Fasern in Vorzugerichtungen oder aber auch ohne Vorzugsrichtungen angeordnet sind; ferner gehören hierzu Ein- oder Mehrlagenflore, die vorvtrfestigt oder vernadelt sind, sowie Vliese, die mit Hilf· der Näh- oder Nähwirktechnik bereits einen gewissen Zusammenhalt erfahren haben. Die Vliese können gewünschtenfalls auch mit anderen Flächengebilden z.B., mit Geweben, Gewirken oder Schaumstoffen verbunden sein.The term "fleece" here consists of loose fibers · To understand lin- or multi-layer piles in which the fibers are arranged in preferred directions or else without preferred directions; this also includes single or multi-layer pile, that are pre-solidified or needled, as well as nonwovens which, with the help of sewing or stitch-knitting techniques, already have a certain Have experienced cohesion. The nonwovens can, if desired can also be combined with other flat structures, e.g. with woven fabrics, knitted fabrics or foams.
909806/0919909806/0919
Le A Q966 - * - BAD ORIGINAL Le A Q966 - * - BAD ORIGINAL
Es ist bereits bekannt, zur Verfestigung von Vliesen wäßrige Dispersionen zu verwenden, die Styrol-Butadien-Mischpolymerisate und Isocyanatgruppen besitzende Umsetzungsprodukte, welche aus mindestens 2 Hydroxylgruppen tragenden Verbindungen und Polyisocyanaten hergestellt sind, enthalten. Vor den auf diese Weise verfestigten Vliesen zeichnen sich die erfindungsgemäß verfestigten Vliese durch eine höhere Reißfestigkeit aus.It is already known to use aqueous dispersions, the styrene-butadiene copolymers, for consolidating nonwovens and reaction products containing isocyanate groups, which are composed of at least 2 hydroxyl group-bearing compounds and Polyisocyanates are produced contain. In front of the nonwovens consolidated in this way, those according to the invention stand out solidified nonwovens due to their higher tear resistance.
In den folgenden Beispielen stehen, falls nichts anderes angegeben, Teile für Gewichtsteile.Unless otherwise stated in the following examples indicated, parts for parts by weight.
Ein Faservlies aus Kupf eroxydamir.oniak-Cellalose wild mit einer wäßrigen flotte behandelt, die im Liter 400 g einer 40£igen wäßrigen Dispersion eines Mischpolymerisats aus 10 TIn. Butadien, 10 TIn. Styrol, 5 TIn. Acrylamid und 75 TIn. Acrylsäurebutylester sowie 600 g der nachstehend beschriebenen Emulsion eines Isocyanat-Vorpolymerisates enthält. Nach der Imprägnierung wird das Vlies auf einen Plottengehalt von etwa 120 # abgequetscht. Danach wird bei 80 - 1100C getrocknet. Das erhaltene | Vliflehat einen angenehm weichen Griff und eine Reißfestigkeit von 52 kg/cm bei 19 ^ Dehnung.A nonwoven fabric made of copper eroxydamir.oniak-Cellalose wild treated with an aqueous liquor containing 400 g of a 40% aqueous dispersion of a copolymer of 10 TIn per liter. Butadiene, 10 TIn. Styrene, 5 TIn. Acrylamide and 75 TIn. Acrylic acid butyl ester and 600 g of the emulsion of an isocyanate prepolymer described below. After the impregnation, the fleece is squeezed off to a plot content of about 120 #. It is then dried at 80-110 ° C. The obtained | Vlifle has a pleasantly soft handle and a tear strength of 52 kg / cm at 19 ^ elongation.
Di· obenerwähnte Emulsion des I-socyanatvorpolymerisate wurde folgendermaßen bereitetι Diethylene above mentioned emulsion of I-socyanatvorpolymerisate was prepared as follows ι
Le A 8986 - 5 - o. Le A 8986 - 5 - o .
BAD ORIGINALBATH ORIGINAL
909806/0919909806/0919
3000 g eines Polypropylenglykols, das ein Molekulargewicht τοπ etwa 2000, eine OH-Zahl von 55,5 und eine Säurezahl < 0,5 aufweist, werden mit 535 g Hexamethylendiisocyanat 2 Stdn. auf 11O0C und anschließend noch 1 1/2 Stdn. auf 130 - HO0C erhitzt. Aus 300 g des erhaltenen Umsetzungsprodulctea, dessen Gehalt an freien Isocyanatgruppen 3,9 Gew.£ beträgt, wird dann zusammen mit 100 g Aethylacetat und 600 g Wasser unter Zusatz Ton 5 g Laurylsulfat eine Emulsion bereitet.3000 of a polypropylene glycol having a molecular weight τοπ about 2000, having an OH number of 55.5 and an acid number <0.5, with 535 g of hexamethylene diisocyanate are g 2 hrs. At 11O 0 C and then for a further 1 1/2 hrs. heated to 130 - HO 0 C. From 300 g of the reaction product obtained, whose content of free isocyanate groups is 3.9% by weight, an emulsion is then prepared together with 100 g of ethyl acetate and 600 g of water with the addition of clay, 5 g of lauryl sulfate.
.Ein Faservlies aus Kupferoxydammoniak-Cellulose wird mit einer wäßrigen Flotte behandelt, die im Liter 400 g einer 40#igenA fiber fleece made of copper oxide ammonia cellulose is covered with a treated aqueous liquor, the 400 g per liter of a 40 # igen
wäßrigen Dispersion eines Mischpolymerisates aus 95 TIn.aqueous dispersion of a copolymer of 95 TIn.
Acrylsäureäthylester und 5 TIn. Acrylamid sowie 600 g der im Beispiel 1 beschriebenen Emulsion enthält. Di· Verfestigung erfolgt auf gleiche Weise wie in Beispiel 1. Das erhaltene Vlies hat bei gutem Stand einen relativ weichen Griff und eineAcrylic acid ethyl ester and 5 TIn. Acrylamide and 600 g of the im Example 1 contains emulsion described. The solidification takes place in the same way as in Example 1. The obtained Fleece has a relatively soft handle and a
Beißfestigkeit von 50 kg/cm2 bei 22 Jt Reißdehnung.Bite strength of 50 kg / cm 2 at 22 Jt elongation at break.
In dem Verfahren des Beispiels 1 kann man mit gleichem oder ähnlichem Ergebnis auch folgende Binder-Komponenten einsetzen»In the process of Example 1, the following binder components can also be used with the same or a similar result »
a) wäßrige Polymerisatdisper3lonen aus:a) aqueous polymer dispersions from:
I. 85 Teilen Acrylsäurebutylester 10 Teilen Butadien 5 Teilen MethacrylamidI. 85 parts of butyl acrylate, 10 parts of butadiene, 5 parts of methacrylamide
Peststoffgehalti 42 £Pesticide content - £ 42
909 80 6/0919909 80 6/0919
Le A 8986 - 6 - Le A 8986 - 6 -
H69351H69351
II. 80 Teilen Aoryleäurebutyleater 15 Teilen AoryInItrilII. 80 parts of aoryleic acid butyl ether 15 parts AoryInItril
5 Teilen Acrylamid feetitoffgehaltt 40 Jt5 parts of acrylamide nitrogen content 40 Jt
III· 25 Teilen Aoryleäurebutyleeter 48 Teilen Vinylidenchlorid 20 Teilen StyrolIII · 25 parts of aoryleic acid butyl ether 48 parts of vinylidene chloride and 20 parts of styrene
6 Teilen Acrylamid6 parts of acrylamide
1 Teil Acryleäure Feetetoffgehe.lt ι 38 1» 1 part acrylic acid Feetetoffgehe.lt ι 38 1 »
IT· 60 Teilen Acrylsäurebutyleeter 35 Teilen StyrolIT · 60 parts of acrylic acid butyl ether 35 parts of styrene
5 Teilen Acrylamid Feetetoffgehaltι 40 % 5 parts of acrylamide Feetetoffι 40 %
T, 15 Teilen Acrylnitril 78 Teilen Butadien 4 Teilen Methacrylsäure 3 Teilen Acrylamid ieetetoffgehalt 38 f> T, 15 parts of acrylonitrile 78 parts of butadiene 4 parts of methacrylic acid ieetetoffgehalt 3 parts of acrylamide 38 f>
5 Teilen Acrylamid Fee te toff gehaltt 40 % 5 parts acrylamide Fee te toff contains 40 %
BAD ORIGINAL Le A 6986 - 7 -BATHROOM ORIGINAL Le A 6986 - 7 -
909806/0919909806/0919
leocyanatvorpolymerisate aus»leocyanate prepolymers from »
verzweigtem Polypropylenglykol (OHZ 56j Mol-Gew. 3000) und einem Isomer engemisch aas 65 i» Toluylendiisocyanat-(2,4) und 35 ^ Toluylendiisocyanat-(2,6) HCO-Gehalt des Yorpolymerisats 4,07 ^branched polypropylene glycol (OHZ 56j mol wt. 3000) and a mixed isomer close aas 65 i »Toluylendiisocyanat- (2,4) and 35 ^ Toluylendiisocyanat- (2,6) HCO-content of 4.07 ^ Yorpolymerisats
linearem Polypropylenglykol (OHZ 108,5$ Mol-Gew. ca. 1000) und Hexamethylendiisocyanat MCO-(Jehalt des Vorpolymerisats 5,6 i» linear polypropylene glycol (OHZ 108.5 $ molar weight approx. 1000) and hexamethylene diisocyanate MCO- (content of prepolymer 5.6 i »
f) linearem Polyester, hergestellt aus Adipinsäure und Diäthylenglykol (OHZ 4-2,3; SZ 1,7) und Hexamethylendiieocyanat HCO-Gehalt des Vorpolymerisats 3,7 ^ f) linear polyester, made from adipic acid and diethylene glycol (OHN 4-2.3; AN 1.7) and hexamethylene diisocyanate HCO content of the prepolymer 3.7 ^
•) linearem Polyäthylenoxid (OHZ 132; Mol-Gew. 850) und Hexamethylendiisocyanat HCO-Gehalt des Vorpolymerisats 7»2 9&.•) linear polyethylene oxide (OHZ 132; Mol-Gew. 850) and Hexamethylene diisocyanate HCO content of prepolymer 7 »2 9 &.
In der folgenden Tabelle sind die Ergebnisse auf verschiedenen Vliesarten zusammengestellt:In the following table the results are on different Types of fleece put together:
Le A 8986 - 8 - Le A 8986 - 8 -
90 9806/0919 BAD original90 9806/0919 BAD original
Substanz £gj\ Feststoff/
a bSubstance £ gj \ solid /
away
Substrat ErgebnisSubstrate result
200200
oi 200oi 200
Polyamidpolyamide
CelluloseCopper oxide ammonia
Cellulose
a co
a
CDco
CD
CelluloseCopper oxide ammonia
Cellulose
terephthalat weiches, festes !flies, gute Spriingelastizitätterephthalate soft, firm! fleece, good elasticity
weiches, wenig elastisches Vlies mit mittlerer Pestigkeisoft, not very elastic fleece with medium pestibility
hartes, unelastisches Vlies mit --,uter Festigkeit und geringer Sehnunghard, inelastic fleece with -, uter strength and lower Longing
relativ hartes, unelastisches Vlies mit extrem guter Reißfestigkeit und hervorragender liaßfestigkeitrelatively hard, inelastic fleece with extremely good tear resistance and excellent leakage resistance
weiches, sehr elastisches Vlies mit mittlerer Festigkeit soft, very elastic fleece with medium strength
relativ hartes, unelastisches Vlies mit besonders trockenem Griffrelatively hard, inelastic fleece with a particularly dry handle
unelastisches Vlies von geringer Dehnung und hervorragender Reißfestigkeitinelastic fleece of low elongation and excellent Tear resistance
voluminöses, weiches Vlies mit mittlerer Festigkeitvoluminous, soft fleece with medium strength
Le A 8986Le A 8986
Claims (6)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEF0043830 | 1964-08-27 | ||
| DEF0046552 | 1965-07-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE1469351A1 true DE1469351A1 (en) | 1969-02-06 |
| DE1469351C3 DE1469351C3 (en) | 1974-03-21 |
Family
ID=25976436
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19641469351 Expired DE1469351C3 (en) | 1964-08-27 | 1964-08-27 | Process for strengthening nonwovens |
| DE19651469369 Granted DE1469369A1 (en) | 1964-08-27 | 1965-07-08 | Process for strengthening nonwovens |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19651469369 Granted DE1469369A1 (en) | 1964-08-27 | 1965-07-08 | Process for strengthening nonwovens |
Country Status (6)
| Country | Link |
|---|---|
| BE (1) | BE668641A (en) |
| CH (2) | CH496129A (en) |
| DE (2) | DE1469351C3 (en) |
| GB (1) | GB1100240A (en) |
| NL (1) | NL6511172A (en) |
| SE (1) | SE310350B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8722973D0 (en) * | 1987-09-30 | 1987-11-04 | Ici America Inc | Aqueous polymer compositions |
-
1964
- 1964-08-27 DE DE19641469351 patent/DE1469351C3/en not_active Expired
-
1965
- 1965-07-08 DE DE19651469369 patent/DE1469369A1/en active Granted
- 1965-08-23 BE BE668641D patent/BE668641A/xx unknown
- 1965-08-26 GB GB3669965A patent/GB1100240A/en not_active Expired
- 1965-08-26 NL NL6511172A patent/NL6511172A/xx unknown
- 1965-08-26 CH CH1198765A patent/CH496129A/en not_active IP Right Cessation
- 1965-08-26 CH CH1198765D patent/CH1198765A4/xx unknown
- 1965-08-27 SE SE1122665A patent/SE310350B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE1469351C3 (en) | 1974-03-21 |
| NL6511172A (en) | 1966-02-28 |
| CH1198765A4 (en) | 1970-05-29 |
| CH496129A (en) | 1970-09-15 |
| GB1100240A (en) | 1968-01-24 |
| SE310350B (en) | 1969-04-28 |
| DE1469369A1 (en) | 1969-01-09 |
| BE668641A (en) | 1965-12-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C3 | Grant after two publication steps (3rd publication) |