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
  • D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
  • D06M15/03—Polysaccharides or derivatives thereof
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/38—Cationic compounds
  • C11D1/65—Mixtures of anionic with cationic compounds
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/20—Organic compounds containing oxygen
  • C11D3/22—Carbohydrates or derivatives thereof
  • C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
• • 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
  • D06M13/10—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 oxygen
  • D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
• • 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
  • D06M13/10—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 oxygen
  • D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
  • D06M13/188—Monocarboxylic acids; Anhydrides, halides or salts thereof
• • 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
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/02—Anionic compounds
  • C11D1/04—Carboxylic acids or salts thereof
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/38—Cationic compounds
• • 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
  • D06M2200/50—Modified hand or grip properties; Softening compositions

Definitions

• This invention relates to aqueous dispersions that include a cyclodextrin, a carboxylic acid and a cationic surfactant. It further relates to the use of such dispersions for treating fiber materials, especially textile fabrics.
• U.S. Pat. No. 5,234,611 describes fabric softeners that include polymer-encapsulated cyclodextrins. They are used for home laundry operations.
• aqueous dispersion including at least the following components:
• said components A to C accounting for 10 to 40% by weight of said dispersion and said dispersion including said components A, B and C in the following amount ratios relative to each other:
• Dispersions according to the invention can be applied to the fiber materials by known methods, for example by padding.
• the padding liquor is adjusted to a concentration customary in textile finishing and to the desired pH.
• the aqueous dispersions of the invention, or the padding liquors may include further products as well as the abovementioned components A, B and C.
• Such further products can be customary textile finishing ingredients such as flame retardants, polyolefins, and also silicones and fluoropolymers for oil and/or water repellency.
• aqueous dispersions according to the invention may additionally include known cellulose crosslinkers such as dimethyloldihydroxyethyleneurea for example. This, following an appropriate, known thermal treatment of the fiber materials, will improve the durability of the effects obtainable with inventive dispersions on cellulose textiles.
• cyclodextrins When dispersions according to the invention are used for textile treatment the known advantages of cyclodextrins are retained. These include, first, the ability to absorb perspiration or volatile gaseous products and so reduce odor nuisance. Secondly, cyclodextrins are known to be useful for including active ingredients such as scents in their voids and to rerelease them at a controlled rate in small doses. This makes it possible to impart a pleasant odor to textiles. For this purpose, the scent is combined with cyclodextrin according to known methods.
• dispersions according to the invention provide a very pleasant soft hand and a controllable level of hydrophilicity.
• Aqueous dispersions according to the invention may also be used with advantage for textile treatment in exhaust processes.
• the hydrophilicity of the textiles can be controlled via the relative amounts of the components A, B and C or via the addition of nonionic dispersants, as described hereinbelow.
• compositions according to the invention provide a distinct, synergistic effect with regard to the soft hand of textiles treated therewith.
• the hand obtainable with compositions according to the invention is softer than the hand obtained with each one of the components A, B and C taken alone. Apart from that, it is difficult in many cases to prepare stable aqueous dispersions that contain only a component A and a component C, but not a component B.
• Dispersions according to the invention include at least the three hereinbelow more particularly described components A, B and C. As mentioned, they may additionally include further ingredients.
• Component A is an unsubstituted cyclodextrin or a mixture of such cyclodextrins.
• Cyclodextrins are cyclic oligosaccharides made up of 6, 7 or 8 ⁇ -1,4-glycosidically linked D-glucopyranose units, in line with the definition in H. R. Christen et al., “Organische Chemie, Von denuben Kunststoffmaschine” , volume II, page 549, 1st edition 1990, Otto-Salle-Verlag, Frankfurt/M.
• the compounds with 6, 7 and 8 units are termed respectively ⁇ -cyclodextrin, ⁇ -cyclodextrin and ⁇ -cyclodextrin.
• Cyclodextrins are bacterial degradation products of starch. Particularly preferred dispersions according to the invention include at least ⁇ -cyclodextrin. They may additionally include ⁇ - and/or ⁇ -cyclodextrin. Cyclodextrins are commercial products, available for example from Wacker Chemie, Germany.
• Component B is an aliphatic carboxylic acid of 8 to 24 carbon atoms or a mixture of such carboxylic acids. Linear or branched, saturated or unsaturated acids such as oleic acid can be used. Component B may further include monobasic or polybasic carboxylic acids. Component B preferably comprises saturated unbranched monobasic carboxylic acids (monocarboxylic acids) such as stearic acid or behenic acid. For cost reasons, component B normally comprises a mixture of technical grade carboxylic acids having a customary chain length distribution.
• Component C is a cationic surfactant or a mixture of cationic surfactants.
• Useful cationic surfactants include the surface-active compounds known from the technical literature.
• Ammonium salts of inorganic or short-chain organic acids are very suitable for dispersions according to the invention. The cation of these salts may contain a quaternized nitrogen atom, but it is also possible for up to 3 hydrogen atoms to be attached to the nitrogen atom.
• component C includes a surfactant of the general formula (I)
• m is 0 or 1
• n is from 1 to 8.
• r is 0, 1 or 2
• R 1 is an alkyl radical of 8 to 20 carbon atoms
• R 2 and R 3 are independently hydrogen, an alkyl radical of 1 to 6 carbon atoms or a radical of the formula
• X ⁇ is a monovalent anion of an inorganic or organic acid.
• X ⁇ is the anion of monomethyl sulfate or the anion of a hydroxycarboxylic acid of 2 to 4 carbon atoms.
• X ⁇ being an anion of the abovementioned kind.
• Useful anions X ⁇ further include for example the anion of acetic acid, propionic acid, glycolic acid or lactic acid.
• R 1 in the formula (I) is a linear or branched alkyl radical of 8 to 20 carbon atoms.
• Alkyl R 2 or R 3 contains 1 to 6 carbon atoms and may be linear or branched.
• Dispersions according to the invention include the components A, B and C in the following amount ratios relative to each other:
• dispersions according to the invention can additionally include a nonionic surfactant or a mixture of such surfactants.
• Particularly useful nonionic surfactants are ethoxylated carboxylic acids and ethoxylated alcohols. Silicones having polyoxyethylene groups or having amino groups in side chains can also be used, either alone or combined with the abovementioned nonionic surfactants.
• the addition of these nonionic dispersants can additionally increase the hydrophilic properties of the textiles.
• N-Methylol compounds known from the literature are useful for this purpose, but also so-called “formaldehyde-free” or “low-formaldehyde” crosslinkers.
• Suitable cellulose crosslinkers are obtainable from Ciba Spezialitätenchemie Pfersee GmbH, for example products of the KNITTEX® range.
• Application of such dispersions to fiber materials and drying is followed by a customary thermal treatment, for example at 160° C., to effect the crosslinking with the cellulose material. Following this treatment, the effects obtainable with dispersions according to the invention exhibit enhanced durability.
• Aqueous dispersions according to the invention include 10 to 40% by weight of the sum total of components A, B and C. The remainder is either just water or water and other ingredients, for example of the abovementioned kind.
• Such aqueous dispersions can be prepared according to commonly known methods, for example by initially charging water, adding the individual components in any order and homogenizing the mixture at 40° to 100° C. by mechanical agitation.
• a mixture of the components A, B and C can be prepared without the use of water and stirred into water.
• Aqueous dispersions according to the invention are particularly useful for treating non-made-up textile fabrics in the form of wovens or knits. This treatment accordingly preferably takes place on the premises of the textile finisher and not on the garment in the home.
• the fiber materials which are preferably present as non-made-up wovens or knits can be further processed into articles of clothing. They may be comprised of natural fibers such as wool or cotton, of regenerated fibers such as viscose or synthetic fibers such as nylon or polyester or of blends of the fiber varieties mentioned.
• An aqueous dispersion 1 was prepared by mixing together the hereinbelow specified components and homogenizing at about 80° C.:
• Component f) modified polydimethylsiloxane having polyoxyethylene groups in side chains
• Dispersions 1 and 2 had the compositions reported in the table which follows. TABLE Parts by Parts by Parts by Parts by Parts by Parts by Parts by weight of weight of weight of weight of weight of weight of weight of weight of Dispersion component a component b component c component d component e component f component g 1 2.2 6.2 5.3 3.2 0.7 0.4 82.0 2 2.2 0 5.3 3.2 0.7 0.4 82.0
• Dispersions 1 and 2 which were both stable, were used to treat (pad) various wovens and knits composed of cotton, cotton/polyester, polyester and nylon, which were subsequently dried. The hand was then assessed, and the hydrophilicity of the textile fabrics was determined, by measuring the time for a drop of water to penetrate into the textile fabric.

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• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Wood Science & Technology (AREA)
• Organic Chemistry (AREA)
• Health & Medical Sciences (AREA)
• Molecular Biology (AREA)
• Emergency Medicine (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

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Publications (1)

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Cited By (5)

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• 2000
  • 2000-02-26 EP EP00104047A patent/EP1127940A1/fr not_active Withdrawn
• 2001
  • 2001-02-22 US US09/790,759 patent/US20020007517A1/en not_active Abandoned

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