EP1774083A1 - Fibres appretees et structures textiles planes - Google Patents

Fibres appretees et structures textiles planes

Info

Publication number
EP1774083A1
EP1774083A1 EP05773891A EP05773891A EP1774083A1 EP 1774083 A1 EP1774083 A1 EP 1774083A1 EP 05773891 A EP05773891 A EP 05773891A EP 05773891 A EP05773891 A EP 05773891A EP 1774083 A1 EP1774083 A1 EP 1774083A1
Authority
EP
European Patent Office
Prior art keywords
fibers
active ingredients
textile fabrics
mixtures
microencapsulated
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.)
Withdrawn
Application number
EP05773891A
Other languages
German (de)
English (en)
Inventor
Raymond Mathis
Hans-Jürgen SLADEK
Markus FÜLLEBORN
Shefqet Emini
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.)
Cognis IP Management GmbH
Original Assignee
Cognis Deutschland GmbH and Co 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 Cognis Deutschland GmbH and Co KG filed Critical Cognis Deutschland GmbH and Co KG
Publication of EP1774083A1 publication Critical patent/EP1774083A1/fr
Withdrawn legal-status Critical Current

Links

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
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/27—Zinc; Compounds thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K8/00—Cosmetics or similar toiletry preparations
    • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
    • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
    • A61K8/29—Titanium; Compounds thereof
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
    • A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
    • A61Q17/04—Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y5/00—Nanobiotechnology or nanomedicine, e.g. protein engineering or drug delivery
    • 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
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/44—Oxides or hydroxides of elements of Groups 2 or 12 of the Periodic Table; Zincates; Cadmates
    • 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
    • D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
    • D06M11/32—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/36—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with oxygen, ozone, ozonides, oxides, hydroxides or percompounds; Salts derived from anions with an amphoteric element-oxygen bond with oxides, hydroxides or mixed oxides; with salts derived from anions with an amphoteric element-oxygen bond
    • D06M11/46—Oxides or hydroxides of elements of Groups 4 or 14 of the Periodic Table; Titanates; Zirconates; Stannates; Plumbates
    • 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
    • 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
    • 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
    • D06M23/00—Treatment of fibres, threads, yarns, fabrics or fibrous goods made from such materials, characterised by the process
    • D06M23/12—Processes in which the treating agent is incorporated in microcapsules
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/41—Particular ingredients further characterized by their size
    • A61K2800/413—Nanosized, i.e. having sizes below 100 nm
    • 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
    • Y10T442/2352—Coating or impregnation functions to soften the feel of or improve the "hand" of the fabric

Definitions

  • the present invention is in the field of textile technology and relates to new finished fibers and fabrics with improved comfort, process for their preparation and the use of mixtures of active ingredients and Binde ⁇ means for textile equipment.
  • the term "wearing comfort” summarizes increased requirements of the consumer, who no longer want to be satisfied with the fact that the clothes he wears directly on the skin, such as lingerie or stockings, do not scratch or cause reddening of the skin, but quite the opposite expected to have a positive effect on the condition of his skin. This can be either to remedy fatigue, as well as to convey a fresh scent or to avoid skin roughness. There has therefore been no lack of efforts, textiles and again especially women's tights - this seems to be a particularly attractive consumer field - equipped with cosmetic agents that pass on to the skin when wearing and cause the desired effects there.
  • microencapsulated active substances which are either incorporated between the fiber fibrils or applied to the fibers with the aid of binders.
  • Such systems are known, for example, from the publications EP 0436729 A1, WO 01/098578 A1, US Pat. No. 6,355,263, DE 2318336 A1 and WO 03/093571 (Cognis).
  • the disadvantage is that the microencapsulation introduces additional complexity into the finishing process and, of course, makes it more expensive. More serious, however, is that many types of capsules are not sufficiently stable and release the drugs too early, in the worst case even at the application. If, instead, encapsulation systems are used which yield particularly resistant capsules, conversely, the release may take place only after a prolonged mechanical load and the consumer can not immediately perceive the expected wellness effect.
  • the object of the present invention has therefore consisted of equipping fibers and textiles with suitable active ingredients in such a way that they can be applied with as little effort as possible, gradually released during the first application, and after at least 20 to 50 washing cycles Wt .-% - based on the initial amount - on the fibers or textiles are present.
  • the invention relates to fibers and textile fabrics characterized aus ⁇ that they with mixtures of
  • Wt .-% of the originally applied drug remains on the fiber. Moreover, as a result of the lack of microencapsulation, it is also ensured that the active ingredients are slowly released when they are first applied, and the consumer can also experience the intended effect.
  • the choice of active ingredients is not critical per se and depends on the water solubility they possess and what effect is to be effected on the skin.
  • the active ingredients Preferably, have a water solubility at 20 0 C of less than 10 g / l and in particular less than 1 g / l.
  • hydrophobic active ingredients which have moisturizing properties, counteract cellulite and / or are skin-calming.
  • Typical examples are tocopherols, carotene compounds, sterols, ascorbic acid palmitate, (deoxy) ribonucleic acid and its fragmentation products, ⁇ -glucans, retinol, bisabolol, allantoin, phytantriol, panthenol, AHA acids, amino acids, ceramides, pseudoceramides, chitosan Menthol, cosmetic oils and oily bodies, essential oils, vegetable proteins and their hydrolysis products, plant extracts, vitamin complexes, insect repellents and nano-integrated inorganic substances or minerals, which are explained in more detail below:
  • tocopherols is understood to mean chroman-6-ols (3,4-dihydro-2H-1-benzopyran-6-ols) substituted in the 2-position by a 4,8,12-trimethyltridecyl radical, which are also known as .alpha Biochinones are called.
  • Typical examples are the plastichinones, tocopherolquinones, ubiquinones, boviquinones, K-vitamins and melaninones (e.g., 2-methyl-1,4-naphthoquinones).
  • they are the quinones of the vitamin E series, i. ⁇ -, ß-, ⁇ -, ⁇ - and ⁇ -tocopherol, the latter still having the original unsaturated Prenylpitkette.
  • tocopherol quinones and hydroquinones and the esters of the quinones with carboxylic acids such as e.g. Acetic or palmitic acid in question.
  • carboxylic acids such as e.g. Acetic or palmitic acid in question.
  • ⁇ -tocopherol, tocopherol acetate and tocopherol palmitate and mixtures thereof is preferred.
  • Carotene compounds are essentially carotenes and carotenoids.
  • Carotenes are a group of 11- to 12-fold unsaturated triterpenes. Of particular importance are the three isomeric ⁇ -, ⁇ -, and ⁇ -carotenes, all of which share the same backbone with 9 conjugated double bonds, 8 methyl branches (including possible ring structures), and one Have ß-ionone ring structure at one end of the molecule and were originally regarded as a single natural product. Shown below are a number of carotene compounds which are suitable as component (b), without being a final Aufzäh ⁇ ment.
  • ⁇ -, ⁇ - and ⁇ -carotene are also suitable, although ⁇ -carotene (provitamin A) is of particular importance because of its high distribution; in the organism it is enzymatically split into two molecules of retinal.
  • Carotenoids are understood as meaning oxygen-containing derivatives of carotenes, which are also called xanthophylls, and whose skeleton consists of 8 isoprene units (tetraterpenes).
  • the carotenoids can be composed of two C 2 o-isoprenopides in such a way that the two middle methyl groups are in the 1,6-position to each other.
  • Typical examples are (3R, 6R) - ⁇ - ⁇ -carotene-3,3'-diol (lutein), (3R, 3'S, 5R) -3,3'-dihydroxy- ⁇ , ⁇ -carotene-6-one (Capsanthin), the 9-cis-6,6'-diapocarotindic acid 6'-methyl ester (Bixin), (3S, 3'S, 5R, 5R) -3,3'-dihydroxy- ⁇ , ⁇ -carotene-6,6 '-dione (capsorubin) or 3S, 3'S) - 3,3'-dihydroxy- ⁇ , ⁇ -carotene-4,4-dione (astaxanthin).
  • carotene compounds also includes their cleavage products such as, for example, 3,7-dimethyl-9- (2,6,6-trimethyl-1-cyclohexenyl) -2,4,6,8-nonatetraene -ol (retinol, vitamin Al) and 3,7-dimethyl-9- (2,6,6-trimethyl-1-cyclohexenyl) -2,4,6,8-nonatetraenal (retinal, vitamin Al aldehyde) ,
  • Sterols - also referred to as sterols - are steroids that have a hydroxyl group attached to the C-3 atom. Usually own Sterols have from 27 to 30 carbon atoms and one double bond, which is in the 5/6 position. The hydrogenation of the double bond leads to sterols, which are often referred to as conditions and which are also encompassed by this invention.
  • the figure shows the structure of the most well-known sterol, cholesterol, which belongs to the group of zoosterols.
  • sterols Due to their superior physiological properties, the use of plant sterols, the so-called phytosterols, is preferred. Examples of these are ergosterols, stigmasterols and, in particular, sitosterols and their hydrogenation products, the sitostanols. Also included in the present invention are the sterol esters, in particular the condensation products of said sterols with saturated or unsaturated fatty acids having 6 to 26 carbon atoms and up to 6 double bonds.
  • Chitosans are biopolymers and are counted among the group of hydrocolloids. Chemically, they are partially deacetylated chitins of different molecular weight containing the following - idealized - monomer unit:
  • chitosans In contrast to most hydrocolloids, which are negatively charged in the range of biological pH values, chitosans represent cationic biopolymers under these conditions.
  • the positively charged chitosans can be charged with opposite charges ⁇
  • Chitosans are produced by using chitin, preferably the shell residues of crustaceans, which are available in large quantities as inexpensive raw materials.
  • the chitin is thereby used in a process which was first described by Hackmann et al. has been described, usually initially deproteinized by the addition of bases, demineralized by the addition of mineral acids and finally deacetylated by the addition of strong bases, wherein the molecular weights can be distributed over a broad spectrum NEN.
  • cosmetic oils and oil bodies are, for example, Guerbet alcohols based on fatty alcohols having 6 to 18, preferably 8 to 10 carbon atoms, esters of linear C 6 -C 22 fatty acids with linear or branched C 6 -C 22 fatty alcohols or esters of branched C.
  • esters of linear C 6 -C 22 fatty acids with branched alcohols are esters of linear and / or branched fatty acids with polyhydric alcohols (such as propylene glycol, dimerdiol or trimer triol) and / or Guerbet alcohols, triglycerides based on C 6 -C 10 fatty acids, liquid mono- / di- / Triglyceridmischept based on C ö -Qg fatty acids , Esters of C 6 -C 22 fatty alcohols and / or Guerbet alcohols with aromatic carboxylic acids, in particular benzoic acid, esters of C 2 -C 12 dicarboxylic acids with linear or branched alcohols having 1 to 22 carbon atom
  • nanoparticles is understood by the person skilled in the art to mean particles which have average particle sizes of from 0.01 to 0.1 ⁇ m in the course of suitable preparation processes
  • Rapid Expansion of Supercritical Solutions RESS is known, for example, from the article by S. Chihlar, M. Turke and K. Schaber in Proceedings World Congress on Particle Technology 3, Brighton, 1998.
  • the starting materials in the presence of suitable protective colloids or emulsifiers to dissolve and / or relax the critical solutions in aqueous and / or alcoholic solutions of protective colloids or emulsifiers or in cosmetic oils, which in turn wie ⁇ the dissolved emulsifiers and / or Suitable protective colloids are, for example, gelatin, casein, chitosan, gum arabic m, lysalbinic acid, starch and polymers, such as polyvinyl alcohols, polyvinylpyrrolidones, polyalkylene glycols and polyacrylates.
  • the starting materials are first dissolved in a suitable organic solvent (for example alkanes, vegetable oils, ethers, esters, ketones, acetals and the like).
  • a suitable organic solvent for example alkanes, vegetable oils, ethers, esters, ketones, acetals and the like.
  • the solutions are then added in such a manner in water or another non-solvent, if appropriate in the presence of a surface-active compound dissolved therein, that precipitation of the nanoparticles occurs due to the homogenization of the two immiscible solvents, the organic solvent preferably evaporated.
  • O / W emulsions or O / W microemulsions can also be used.
  • GAS process gas anti-solvent recrystallization
  • the process uses a highly compressed gas or supercritical fluid (eg carbon dioxide) as non-solvent for the crystallization of solutes.
  • the compressed gas phase is introduced into the primary solution of the starting materials and absorbed there, whereby the liquid volume increases, the solubility decreases and finely divided particles are separated out.
  • PCA precipitation with a compressed fluid anti-solvent
  • the primary solution of the starting materials is introduced into a supercritical fluid, wherein very finely divided droplets form, in which run off diffusion processes, so that a precipitation of very fine particles takes place.
  • the starting materials are melted on by pressing on gas (for example carbon dioxide or propane). Pressure and temperature reach near or supercritical conditions.
  • gas for example carbon dioxide or propane.
  • the gas phase dissolves in the solid and causes a lowering of the melting temperature, the viscosity and the surface tension.
  • cooling effects cause the formation of very fine particles.
  • nanoparticles Another possibility for producing the nanoparticles is provided by the GPC or PVS process (gas phase condensation, physical vapor synthesis), in which metals vaporized with plasma are oxidized with oxygen and thencondensed in a controlled manner.
  • GPC gas phase condensation, physical vapor synthesis
  • the active ingredients are preferably nanoized zinc oxide, which has a surprisingly higher activity against atopic dermatitis compared to the conventional zinc oxide.
  • Further objects of the invention therefore relate to the use of optionally microencapsulated nanoized zinc oxide for finishing fibers and textiles and for producing cosmetic and / or pharmaceutical preparations.
  • the zinc oxide nanoparticles have average diameters in the range of 0.1 to 0.2 microns.
  • titanium dioxide and other nano-metal oxides as well as nano-mixed oxides such as ITO and ATO
  • Vegetable triglycerides such as coconut oil, palm oil, apricot kernel oil or hazelnut oil.
  • Nanoized zinc oxide or titanium dioxide are Nanoized zinc oxide or titanium dioxide.
  • the proportion of the active ingredients in the finished fibers and textiles can be 0.1 to 10, preferably 0.25 to 7.5 and in particular 0.5 to 5 wt .-%, based on the active substance.
  • the polymeric film-forming binders contemplated by the invention may be selected from the group formed by
  • Suitable polyurethanes (PU) and polyethyl (EVA) are the commercially available products from the series Stabiflex ® or Stabicryf Cognis Germany GmbH & Co. KG.
  • Melamine (synonym: 2,4,6-triamino-l, 3,5-triazine) is usually formed by trimerization of dicyandiamide or by cyclization of urea with elimination of carbon dioxide and ammonia.
  • melamines are oligomers or polymeric condensation products of melamine with formaldehyde, urea, phenol or mixtures thereof understood.
  • Glyoxal (synonym: oxaldehyde, ethanedial) is formed in the vapor-phase oxidation of ethylene glycol with air in the presence of silver catalysts.
  • glyoxals are understood as meaning the self-condensation products of glyoxal ("polyglyoxa").
  • Suitable silicone compounds are, for example, dimethylpolysiloxanes, methylphenylsilyloxanes, cyclic silicones and amino, fatty acid, alcohol, polyether, epoxy, fluorine, glycoside and / or alkyl-modified silicone compounds which preferably solidify at room temperature or resinous.
  • silicon mimics which are mixtures of dimethicones having an average chain length of from 200 to 300 dimethylsiloxane units and hydrogenated silicates.
  • aminosiloxanes for example Cognis 3001 from Cognis Deutschland GmbH & Co. KG.
  • Their further crosslinking with H-siloxanes, eg Cognis 3002 of Cognis Germany GmbH & Co. KG. can increase the performance as a binder even further.
  • Epichlorohydrin-crosslinked polyamidoamines which are also referred to as “fibrabones” or “wet strength resins", are well known from textile and paper technology. Their preparation is preferably based on two methods:
  • Polyaminoamides are (a) initially reacted with an amount of 5 to 30 mol%, based on the nitrogen available for quaternization, of a quaternizing agent, and (b) subsequently the resulting quaternized polyaminoamides having a content crosslinking of non-quaternized nitrogen corresponding molar amount of epichlorohydrin, or
  • Polyaminoamides are (a) initially reacted at 10 to 35 ° C in an amount of 5 to 40 mol% - based on the nitrogen available for cross-linking - epichlorohydrin, and (b) the intermediate product to a pH - Setting value in the range of 8 to 11 and crosslinked at a temperature in the range of 20 to 45 0 C with a further amount of epichlorohydrin, so that the mola ⁇ re use ratio in total from 90 to 125 mol% - based on that for Ver Netting available nitrogen.
  • poly (meth) acrylates is homo- and copolymerization products of acrylic acid, methacrylic acid and optionally their esters, especially their esters with lower alcohols, such as. Methanol, ethanol, isopropyl alcohol, the isomeric butanols, cyclohexanol and the like, which are obtained in a manner known per se, for example by free-radical polymerization under UV irradiation.
  • the average molecular weight of the polymers is between 100 and 10,000, preferably 200 and 5,000 and especially 400 to 2,000 DaIton.
  • the binders are applied to the fibers in amounts of from 0.5 to 15, preferably from 1 to 10, and in particular from 1 to 5,% by weight, based on the active substance. microcapsules
  • the fibers and textiles are provided with both hydrophobic, non-encapsulated active ingredients and any other encapsulated active ingredients using said binders.
  • the unencapsulated agents act directly, i. but at the very first wearing and give the consumer the desired wellness effect, but the content decreases rapidly after the tenth wash, while the microencapsulated agents, especially then, if very resistant capsule systems are used, then only begin to release their active principles.
  • microcapsule or “nanocapsule” are understood by the person skilled in the art spherical aggregates having a diameter in the range of about 0.0001 to about 5 and preferably 0.005 to 0.5 mm, which contain at least one solid or liquid core ent More specifically, they are finely dispersed liquid or solid phases coated with film-forming polymers, which polymers are deposited on the material to be coated after emulsification and coacervation or interfacial polymerization Waxes in a matrix recorded (“Microsponge”), which may be additionally enveloped as microparticles with film-forming polymers.
  • Matocapsule spherical aggregates having a diameter in the range of about 0.0001 to about 5 and preferably 0.005 to 0.5 mm, which contain at least one solid or liquid core ent More specifically, they are finely dispersed liquid or solid phases coated with film-forming polymers, which polymers are deposited on the material to be coated after emulsification and coacervation or interfa
  • microscopically small capsules can be dried like powders
  • multinuclear aggregates also called microspheres
  • single or multinuclear microcapsules can be enclosed by an additional second, third, etc.
  • the shell can consist of natural, semisynthetic or synthetic materials, of course covering materials are, for example, gum arabic, agar -Agar, agarose, maltodextrins, alginic acid or its salts, for example sodium or calcium alginate, fats and fatty acids, cetyl alcohol, collagen, chitosan, lecithins, gelatin, albumin, shellac, polysaccharides such as starch or dextran, polypeptides, protein hydrolysates, sucrose and Waxes Semisynthetic Covering Materials s inter alia chemically modified cellulose, in particular cellulose esters and ethers, for example cellulose acetate, ethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose and carboxymethylcellulose, and also starch derivatives, in particular starch ethers and esters.
  • covering materials are, for example, gum arabic, agar -Agar, agarose, maltodextrins, algin
  • Synthetic envelope materials are, for example, polymers such as polyacrylates, polyamides, polyvinyl alcohol or polyvinylpyrrolidone.
  • microcapsules of the prior art are the following commercial products (in parentheses is the shell material):
  • Halter est Microcapsules gelatin, gum arabic
  • Coletica Thalaspheres marine collagen
  • Lipotec Millicapseln alginic acid, agar-agar
  • Induchem Unispheres Lactose, microcrystalline cellulose, hydroxypropylmethyl cellulose
  • Unicerin C30 lactose, microcrystalline cellulose, hydroxypropylmethylcellulose
  • Kobo Glycospheres modified starch, fatty acid esters, phospholipids
  • Softspheres modified agar-agar
  • Kuhs Probiol Nanospheres phospholipids
  • Primaspheres and Primasponges chitosan, alginates
  • Primasys phospholipids
  • the microcapsules for example, prepare a 1 to 10, preferably 2 to 5 wt .-% aqueous solution of the gelling agent, preferably the agar agar ago and heated them under reflux. In the boiling heat, preferably at 80 to 100 0 C, a second aqueous solution is added, which contains the cationic polymer, preferably the chitosan in amounts of 0.1 to 2, preferably 0.25 to 0.5 wt .-% and the active ingredients in amounts of from 0.1 to 25 and especially from 0.25 to 10% by weight; this mixture is called a matrix.
  • the loading of the microcapsules with active ingredients can therefore also amount to 0.1 to 25% by weight, based on the capsule weight.
  • water-insoluble constituents for example inorganic pigments
  • inorganic pigments can also be added at this point in time to adjust the viscosity, these being added as a rule in the form of aqueous or aqueous / alcoholic dispersions.
  • emulsifiers and / or solubilizers can also be added to the matrix.
  • the matrix can optionally be very finely dispersed in an oil phase under strong shearing to produce the smallest possible particles in the subsequent encapsulation.
  • the resulting aqueous preparations generally have a microcapsule content in the range from 1 to 10% by weight. In some cases, it may be advantageous if the solution of the polymers contain other ingredients, such as emulsifiers or preservatives.
  • microcapsules are obtained which on average have a diameter in the range of preferably about 0.01 to 1 mm. It is recommended to sieve the capsules in order to ensure as uniform a size distribution as possible.
  • the microcapsules obtained in this way can have any desired shape in the production-related frame, but they are preferably spherical in shape. Alternatively, it is also possible to use the anionic polymers for preparing the matrix and to carry out the encapsulation with the cationic polymers, especially the chitosans.
  • the encapsulation can also be carried out with the exclusive use of cationic polymers, the advantage being taken of their ability to coagulate at pH values above the pKa value.
  • an O / W emulsion is prepared which, in addition to the oil body, water and the active substances, contains an effective amount of emulsifier.
  • this preparation is mixed with vigorous stirring with an appropriate amount of egg ner aqueous anion polymer solution.
  • the membrane formation takes place by adding the chitosan solution.
  • the pH is raised to 5 to 6, for example by adding triethanolamine or another base. This results in an increase in the viscosity, which is caused by the addition of further thickening agents, such as.
  • Polysaccharides in particular xanthan gum, guar-guar, agar-agar, alginates and Ty ⁇ loose, carboxymethylcellulose and hydroxyethylcellulose, high molecular weight polyethylene glycol mono- and diesters of fatty acids, polyacrylates, polyacrylamides and derglei ⁇ chen can still be supported.
  • the microcapsules are separated from the aqueous phase, for example by decantation, filtration or centrifuging.
  • the formation of the microcapsules takes place around a preferably solid, for example, crystalline core, by enveloping it in layers with ent charged polyelectrolytes.
  • a preferably solid, for example, crystalline core by enveloping it in layers with ent charged polyelectrolytes.
  • hydrophobic active ingredients and film-forming polymers serve to equip fibers and all types of textile fabrics, ie both finished and semi-finished products during the manufacturing process or even after its completion, in order to improve the comfort on the skin.
  • the choice of materials from which the fibers or textiles consist is largely uncritical. Thus, all common natural and synthetic materials and mixtures thereof come into consideration, but especially cotton, polyamides, polyesters, viscose, modal, polyamide / elastane, cotton / elastane and cotton / polyester. Equally uncritical is the selection of textiles, whereby it is of course close to equipping those products which are in direct contact with the skin, ie in particular underwear, swimwear, nightwear, stockings and tights.
  • a further subject matter of the present invention relates to a first process for equipping fibers or textile fabrics, in which the substrates are impregnated with aqueous preparations comprising the hydrophobic active ingredients and the film-forming polymers and optionally further microencapsulated active ingredients and emulsifiers ,
  • the impregnation of the fibers or textiles takes place in the so-called draw-out process. This can be carried out in a commercially available washing machine or in a dyeing apparatus customary in the textile industry.
  • another subject of the invention relates to a second method for Ausrüs ⁇ tion of fibers and textile fabrics, in which the aqueous preparations comprising the hydrophobic active ingredients and the film-forming polymers and, where appropriate, further microencapsulated active ingredients and emulsifiers positively applied.
  • the substances to be provided are drawn through an immersion bath containing the microencapsulated active substances and the binder, the application then being carried out under pressure via a press. This is called a padding application.
  • the application concentration of the active compounds is from 0.5 to 15 and preferably from 1 to 10% by weight, based on the liquor or the dip bath.
  • concentrations are required than in the case of forced application in order to achieve equal loading of the fibers or textile fabrics with the active ingredients.
  • a final object of the invention finally relates to the use of mixtures containing (a) hydrophobic agents and
  • Example 1 was repeated, but instead of cotton a mixed fabric of polyamide and Lycra (90:10) was used.
  • the results (rounded average values from three test series in each case) are summarized in Table 2:
  • carbon dioxide was first taken from a reservoir at a constant pressure of 60 bar and purified via a column with an activated carbon and a molecular sieve packing. After the liquefaction, the CO 2 was compressed to the desired supercritical pressure p with the aid of a diaphragm pump at a constant delivery rate of 3.5 l / h. Subsequently, the solvent was brought to the required temperature Tl in a preheater and passed into an extraction column (steel, 400 ml), which was loaded with the metal sis.
  • the resulting supercritical, ie fluid mixture was sprayed via a laser-drawn nozzle (length 830 .mu.m, diameter 45 .mu.m) at a temperature T2 in a plexiglass expansion chamber containing a 4 wt .-% aqueous solution of E- emulsifier or protective colloid.
  • the fluid medium evaporated and left behind in the protective colloid, dispersed nanoparticles.
  • a 1 wt .-% dispersion of zinc oxide was added dropwise with vigorous stirring at 4O 0 C and a reduced pressure of 40 mbar in a 4 wt .-% aqueous solution of Coco Glucosides.
  • the vaporizing solvent was condensed in a cold trap while the dispersion with the nanoparticles remained.
  • the process conditions and the average particle size range are given in Table 4 below.
  • Aqueous dispersed nanoized zinc oxide (particle diameter 0.1-0, 2 ⁇ m) was mixed with various polymeric binders and applied by compulsory application to a polyamide / Lycra blended fabric.
  • the amount of zinc oxide used is 1% by weight, and that of the binder is 1% by weight.
  • All fabric samples were dried at 140 ° C for 2 minutes. They were then washed a total of ten times in a conventional washing machine at 40 0 C and determines the remaining zinc oxide on the fibers after various washing cycles.
  • Table 5 The results (mean values from three test series in each case) are summarized in Table 5:

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  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Multicomponent Fibers (AREA)
  • Chemical Or Physical Treatment Of Fibers (AREA)

Abstract

La présente invention concerne des fibres et des structures textiles planes qui sont caractérisées en ce qu'elles sont apprêtées avec des mélanges constitués (a) de substances actives hydrophobes et (b) de polymères filmogènes.
EP05773891A 2004-08-04 2005-07-26 Fibres appretees et structures textiles planes Withdrawn EP1774083A1 (fr)

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DE200410037752 DE102004037752A1 (de) 2004-08-04 2004-08-04 Ausgerüstete Fasern und textile Flächengebilde
PCT/EP2005/008092 WO2006015718A1 (fr) 2004-08-04 2005-07-26 Fibres appretees et structures textiles planes

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US20080248704A1 (en) 2008-10-09

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