Classifications

• • 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
  • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
  • D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
  • D06M13/46—Compounds containing quaternary nitrogen atoms
  • D06M13/463—Compounds containing quaternary nitrogen atoms derived from monoamines
• • 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
  • D06M15/53—Polyethers
• • 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
  • D06M15/643—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain
  • D06M15/6436—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds containing silicon in the main chain containing amino groups
• • 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
  • D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
  • D06M2101/16—Synthetic fibres, other than mineral fibres
  • D06M2101/18—Synthetic fibres consisting of macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
• • 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
  • D06M2200/00—Functionality of the treatment composition and/or properties imparted to the textile material
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
  • 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
  • Y10T442/2484—Coating or impregnation is water absorbency-increasing or hydrophilicity-increasing or hydrophilicity-imparting
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
  • 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
  • Y10T442/2484—Coating or impregnation is water absorbency-increasing or hydrophilicity-increasing or hydrophilicity-imparting
  • Y10T442/2492—Polyether group containing
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
  • 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
  • Y10T442/2861—Coated or impregnated synthetic organic fiber fabric
  • Y10T442/291—Coated or impregnated polyolefin fiber fabric
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
  • 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
  • Y10T442/2861—Coated or impregnated synthetic organic fiber fabric
  • Y10T442/291—Coated or impregnated polyolefin fiber fabric
  • Y10T442/2918—Polypropylene fiber fabric

Definitions

• the invention relates to compositions, preferably in the form of spin finishes, for polyolefin fibers or filaments which are capable of imparting permanently hydrophilic properties to these basically hydrophobic fibers, as well as fibers and filaments treated or finished with these compositions and nonwoven textile fabrics, in particular nonwovens, made therefrom.
• Hydrophilic nonwovens are used as covering nonwovens, ie as the uppermost nonwoven or as an intermediate nonwoven multi-layer nonwoven, for baby diapers, incontinence products and similar products.
• Such fleeces have the task of quickly transferring body fluids such as urine to the underlying absorption layer.
• Ordinary hydrophilizing preparations are due to the liquid transport within the diaper or other products more or less quickly and more or less washed off the fleece.
• the cover fleece gradually loses its hydrophilic properties and becomes more and more hydrophobic due to the hydrophobic properties of polyolefins. Subsequent further contacts with body fluid make it increasingly difficult for them to be passed on to the absorption layer and ultimately become quite impossible. The result is that the liquid runs out of the product with little or no retention and that the product can no longer perform its original function of keeping the skin of a baby or a patient dry.
• a preparation for permanent hydrophilization should adhere to the polyolefin as permanently as possible and give the nonwoven as hydrophilic as possible over a long period of time.
• a hydrophilizing spinning preparation must also meet further requirements: the preparation must enable the production and processing of the fibers; this includes optimal sliding properties and cohesion of the fibers or filaments as well as sufficient antistatic equipment to be able to form the fleece at an acceptable speed.
• US Pat. No. 4,988,449 discloses hydrophilizing compositions which contain diethanolamides, nonionic surfactants, alkyl phosphates, quaternary ammonium salts and / or alkylimidazolium salts and are used as liquid permeability imparting agents for polyolefin nonwovens.
• US Pat. No. 5,258,129 discloses hydrophilizing compositions which contain polyoxyalkylene-modified polydimethylsiloxane alone or together with nonionic surfactants, alkylphosphates, quaternary ammonium salts and / or alkylimidazolium salts.
• EP-B1-0 410 485 discloses a process for hydrophilizing polyolefin nonwoven fabrics by applying an aqueous, alkoxylated surfactant composition to the surface of the fibers, in which the composition consists either of at least 80% alkoxylated triglycerides of C 18 fatty acids, these being Triglycerides have a large proportion of alkoxylated ricinolein or of alkoxylated and hydrogenated ricinolein, or at least 80% of a mixture of alkoxylated or alkoxylated and hydrogenated ricinolein, a polyalkylene-modified water-soluble polydimethylsiloxane and an antistatic compound, the latter consisting, for example, of a neutralized phosphoric acid ester , alkoxylated phosphate, potassium salt, ammonium salt or alkoxylated ammonium salt.
• the invention is therefore based on the object of providing a composition with good permanent hydrophilizing properties and with improved cohesive action and good antistatic properties, in order to enable high fleece production speeds and generally high speeds in the processing of the treated or finished fibers, filaments and the nonwovens produced therefrom .
• composition according to the invention has excellent permanent hydrophilizing properties, an excellent cohesive effect and good antistatic properties.
• these compositions can therefore be used particularly well as spin finishes for the permanent hydrophilic finishing of polyolefin fibers, polyolefin filaments and nonwovens produced therefrom, in particular nonwovens.
• component B contains at least one cationically modified polydimethylsiloxane of the formulas (IIa) or (IIb)
• those polydimethylsiloxanes in which the R 4 radical has an amphoteric betaine structure are somewhat poorer in terms of permanent hydrophilizing properties, but are still acceptable, but are cheaper and therefore more economical than the more effective, but more expensive, "real" cationically modified silicones.
• the nonionic surfactant, component A of the composition according to the invention is preferably selected from the following group of compounds, all of which contain one or more alkoxylated C 8 -C 18 hydrocarbon chains respectively branched or straight chained, saturated or may be unsaturated, having in its molecule: alkoxylated C 8 -C 18 fatty alcohols, alkoxylated C 8 -C 18 amines, alkoxylated C 8 to C 18 amides, alkoxylated C 8 -C 18 - Fatty acids, alkoxylated C 8 -C 18 fatty acid esters and alkoxylated C 8 -C 18 alkylphenols.
• compositions according to the invention which contain components A (nonionic surfactant) and B (quaternary ammonium compound and / or cationically modified polydimethylsiloxane) in a weight ratio of about 1: 1.
• component B or as a component of component B, preference is given to using those polydimethylsiloxanes of formal IIa in which the end group Z in the radical R 4 is a cocoamidopropyl radical and Y - one of the anions mentioned above.
• composition according to the invention is preferably in the form of an aqueous dispersion or emulsion whose active component content is 0.5 to 20% by weight.
• Active components are understood to mean components A and B and the further constituents which may be added as component C, with the exception of water.
• compositions according to the invention are preferably adjusted, if appropriate, by dilution with water so that their kinematic viscosity at 20 ° C. is in the range between 1 and 200 mm 2 / s (centistokes), particularly preferably between 1 and 10 mm 2 / s.
• composition according to the invention can contain, as component C, at least one cohesion agent, lubricant, corrosion protection agent and / or at least one emulsifier.
• a castor oil ethoxylate is preferably used as the cohesion agent.
• the lubricant is preferably a fatty acid ethoxylate.
• a fatty acid amine derivative is preferably used as a corrosion protection agent to protect the metal parts of spinning machines and other processing machines, e.g. the card.
• the emulsifier is preferably also a fatty acid ethoxylate.
• composition according to the invention is preferably used as a permanently hydrophilic spinning preparation for polyolefin fibers or filaments or as a means for permanently hydrophilic finishing of nonwoven textile fabrics (nonwovens), in particular polyolefin fiber nonwovens, made from polyolefin fibers or filaments.
• composition used in each case is applied in the form of an aqueous emulsion or in the form of an aqueous dispersion to the fibers, filaments or nonwovens, in an amount of 0.2 to 2%, based on the dry weight of the respective product (fiber, filament, Fleece).
• composition takes place, as known to the person skilled in the art, via dosing pens, kiss rollers, immersion baths or by spraying.
• the invention thus also relates to polyolefin fibers and filaments which are permanently hydrophilized or treated with one of the compositions according to the invention, but also nonwoven textile fabrics (nonwovens), in particular nonwovens, made of polyolefin fibers or filaments which are permanently hydrophilized with or treated with a composition according to the invention are, whereby double finishing and treatment is also possible, that is, the fibers or filaments are permanently hydrophilic be equipped and then the fleece produced therefrom is once again given a permanent hydrophilic composition with a composition according to the invention.
• the nonwovens equipped according to the invention are particularly preferably non-compacted random fiber nonwovens or chemically or physically consolidated, e.g. needled or thermally fixed nonwovens.
• Components A, B and C are thoroughly mixed and homogenized.
• the composition so obtained is then diluted with distilled or demineralized water to form a 10% by weight aqueous dispersion of the composition.
• This 10% dispersion is used as a spin finish for the permanently hydrophilic finishing of three polypropylene substrates, namely PP fibers with a titer of 2.2 dtex, a PP spunbond fleece with a basis weight of 23 g / m 2 and PP Filaments 450/34.
• Components A, B and C are mixed intensively with one another and homogenized, and the composition is, as described in Example 1, diluted with water and dispersed therein.
• the 10% aqueous dispersion is used as a spin finish and tested on the same textile substrates that were used to test the composition according to Example 1.
• Components A, B and C are mixed intensively with one another and homogenized and, as described in Example 1, diluted with water and dispersed therein.
• the 10% aqueous dispersion obtained in this way is used as a spin finish, and the permanent hydrophilizing effect is achieved with PP fibers with a titer of 2.2 dtex and with a nonwoven made of PP fibers with a titer of 1.7 dtex and with a basis weight of 23 g / m 2 tested.
• Components A and B are carefully mixed together and homogenized and dispersed in water as described in Example 1.
• the resulting 10% dispersion is used as a spin finish and tested on two different PP nonwovens, each with a basis weight of 23 g / m 2 , a nonwoven having been produced from filaments with a titer of 1.7 dtex during the Titer in the second case was 2.2 dtex.
• a hydrophilizing standard spinning preparation from Schill & Seilacher GmbH & Co., Böblingen was used, which is commercially available under the name Silastol® GF 602. It is a mixture of fatty acid ethoxylates, castor oil ethoxylates and phosphoric acid esters.
• Tests Nos. 1 to 3 were carried out with the composition according to Example 1, tests Nos. 4 to 6 with the composition according to Example 2, tests Nos. 7 and 8 with the composition according to Example 3, tests No. 9 and 10 with the composition according to Example 4 and Test No. 11 with the composition according to Comparative Example.
• the individual components of the compositions are given in the table in% by weight.
• the coating weight of active substance in the preparation was 0.5% in all cases, based on the dry weight of the respective textile substrate.
• All textile substrates listed in the table were made of polypropylene.
• the titer of the fibers and filaments are given in the table, as is the basis weight of the nonwovens.
• the sink time was measured according to ASTM method D-1117-79. 5 g of a fiber or filament sample are weighed into an approx. 3 g wire basket. The basket is thrown into a beaker filled with distilled water from a height of 5 cm. The time after which the basket is completely immersed in the water is measured. The shorter the sink time, the faster the fiber or filament absorbs water.
• the surface conductivity of the prepared fibers or filaments is measured with a moisture meter, the textometer type DMB-6 from Mahlo GmbH, Saal / Donau. The value is given in divisions (skt). These are not absolute values, but only relative values compared to a standard. The higher the value, the better the antistatic properties of the fiber.
• the time that 5 ml of a synthetic urine solution need to penetrate a prepared fleece and reach the underlying absorption layer made of filter paper is measured.
• the measurement is carried out five times in succession on the same fleece, with the absorption filter paper being renewed in each case. The five measured values are given in seconds.
• the amount (in grams) of liquid is measured, which when a drenched fleece flows back through a 4 kg weight into a dry filter paper placed over it.
• the coefficients of friction are measured according to the company's own test standards. To determine the thread / thread friction, the thread to be tested is deflected by about 180 ° using a roller. The two opposite runs are twisted together by rotation, three times by 360 °, so that there is an approximately longitudinal friction of the thread sections against each other. The thread tension is measured in Newtons.
• the thread / solid friction is measured on a thread that runs at a constant speed around a fixed friction element made of ceramic or metal.
• the thread tension is measured before and after the friction point. The difference is shown in the table in Newtons.
• the filament / filament adhesion of a filament is measured at room temperature, the filament being drawn off at a rate of 0.6 mm / min. is measured. The measuring time is 30 min. The voltage fluctuation is measured in Newtons.
• the table shows average values from 8 or 9 individual filaments.
• the presence of a cationically modified polydimethylsiloxane in component B has a positive effect on the water absorption rate (sink time) and on the antistatic properties (Mahlo).
• compositions according to the invention even after wetting five times, the liquid applied within 5.5 to 10.7 seconds. to the underlying absorption layer forward, while the standard preparation of the comparative example is only able to drain 5 ml of the applied urine solution extremely slowly (within 16.7 seconds) after the third wetting, but no longer thereafter, which proves that the standard preparation is for single use has excellent hydrophilizing effects, but no permanent hydrophilizing effects, since the preparation is obviously washed off the fiber or the filament after repeated wetting.
• those embodiments of the composition according to the invention are significantly better than the comparative preparation which do not contain any cationically modified silicone.
• the fibers equipped with the compositions according to the invention hardly differ from those which have been equipped with the standard preparation.
• compositions according to the invention is provided with a further agent which is outstandingly suitable for the permanent hydrophilic finishing of polyolefin fibers and filaments and textile fabrics made therefrom and which can be used particularly advantageously for the production of hydrophilic cover nonwovens for baby diapers and incontinence products .
• the compositions according to the invention also lead to a significantly improved cohesion of the nonwovens provided with them and to improved antistatic properties; this in turn means that the textile products can be produced and processed at higher speeds than before.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
• Nonwoven Fabrics (AREA)
• Compositions Of Macromolecular Compounds (AREA)

Applications Claiming Priority (2)

Publications (3)

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ID=7810586

Family Applications (1)

Country Status (5)

Cited By (6)

Families Citing this family (11)

Family Cites Families (16)

• 1996
  • 1996-11-04 DE DE19645380A patent/DE19645380B4/de not_active Expired - Fee Related
• 1997
  • 1997-10-28 ES ES97118710T patent/ES2210445T3/es not_active Expired - Lifetime
  • 1997-10-28 EP EP97118710A patent/EP0839947B1/fr not_active Expired - Lifetime
  • 1997-10-28 DK DK97118710T patent/DK0839947T3/da active
  • 1997-10-28 DE DE59710918T patent/DE59710918D1/de not_active Expired - Lifetime
  • 1997-11-04 US US08/963,929 patent/US6008145A/en not_active Expired - Lifetime

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