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

Definitions

• This invention relates to a method of conditioning fabrics and to compositions suitable for use in such methods.
• this treatment includes the treatment with a fabric softening agent intended to soften and reduce the harshness of washed fabrics.
• the fabric softening agent may be included in a fabric washing composition, in a composition intended to be added to the rinse subsequent to washing the fabrics or included in a composition intended to be added with wet fabrics to a hot air dryer. In all cases the conditioning process takes place in an aqueous environment.
• a number of fabric conditioning materials are known, including soap, smectite clays, quaternary ammonium salts and fatty amines. All these materials have been commercially used but suffer from a variety of disadvantages. For example quaternary ammonium salts, which have been most widely used, are difficult to incorporate in liquid products except at relatively low concentrations, are not easily dispersed in cold water and may, if used in excess, render the treated fabrics water repellant.
• the fabric conditioning agent is an organofunctional polyalkyl siloxane having the general formula (I) wherein each R is independently an alkyl group containing 1 to 4 carbon atoms, each of R1, R2, and R3, is independently an alkyl group containing 1 to 24 carbon atoms or R3 is the group (CH2) q COO ⁇ where q is O to 10, A is a divalent hydrocarbon group interrupted by or substituted with one or more oxygen containing groups, Z is a monovalent anion or the equivalent thereof, n and m are positive integers and r is a positive integer or zero such as to render the siloxane electrically neutral.
• German Patent Application 3 542 725 (Hoffman's) describes fabric treatment compositions containing a polyalkyl siloxane with a quaternary nitrogen group, a cationic fatty acid condensation product and a cationic film former. Such compositions are hereby declared to be outside the scope of the present invention.
• Organosilicone compounds within the general formula (I), are commercially available, ex Th. Goldschmidt AG, Essen, Germany.
• ABIL registered Trade Mark
• R,R1 and R2 are methyl groups
• R3 is an isopropyl group
• A is the group - OCH2CH(OH)CH2-and X is methosulphate.
• ABIL B9950 from the same supplier, is similar with the group R3 being -CH2-COO ⁇ and r being correspondingly zero.
• a composition for use in the method according to the invention containing the siloxane material of general formula (I) may take a variety of forms. It may for example be a liquid or solid fabric washing product which, in addition to the fabric conditioning agent, may comprise surfactants selected from anionic, nonionic and cationic surfactant materials, mixtures thereof or with other surfactant materials, detergency builder materials such as water-soluble precipitating or sequestering builder materials or ion-exchange builder materials, bleaches such as peroxybleaches, optionally together with bleach activators, alkaline materials such as sodium silicate, fillers such as sodium sulphate and also the other conventional ingredients of such compositions.
• surfactants selected from anionic, nonionic and cationic surfactant materials, mixtures thereof or with other surfactant materials, detergency builder materials such as water-soluble precipitating or sequestering builder materials or ion-exchange builder materials, bleaches such as peroxybleaches, optionally together with bleach activators,
• composition for use according to the invention may be in the form of a rinse conditioning composition, for example a liquid rinse conditioning composition which in addition to the fabric conditioning agent may comprise electrolytes, emulsifiers, viscosity modifying agents, thickeners, colourants and also the other conventional ingredients of such compositions.
• a rinse conditioning composition for example a liquid rinse conditioning composition which in addition to the fabric conditioning agent may comprise electrolytes, emulsifiers, viscosity modifying agents, thickeners, colourants and also the other conventional ingredients of such compositions.
• composition for use in the method according to the invention may be in the form of a product for use in a hot air rotary dryer, for example in the form of a powder contained within a dispensing device or in the form of a coating on, or impregnation of, a flexible substrate material, which may be in sheet form.
• composition for use according to the invention may be in a form suitable for direct application to fabric, such as in the form of an aerosol spray containing at least the fabric conditioning agent and a suitable propellant.
• any of the above products may contain, in addition to the siloxane conditioning agent, other fabric conditioning agents such as other fabric softeners (especially water-insoluble cationic and nonionic softeners), anti-static agents (especially water-soluble cationic materials), perfumes, drape imparting agents, crease resistance imparting agents and ironing aids.
• fabric conditioning agents such as other fabric softeners (especially water-insoluble cationic and nonionic softeners), anti-static agents (especially water-soluble cationic materials), perfumes, drape imparting agents, crease resistance imparting agents and ironing aids.
• Suitable water-insoluble cationic and nonionic softeners are disclosed in European Patent Application 122 141 (Unilever) and European Patent Application 59 502 (Procter and Gamble) incorporated herein by reference.
• the total concentration of the polyalkyl siloxane and nonionic fabric softener in the liquor will be between about 20 ppm and 500 ppm.
• S929 a commercially available material Silicone 929 (ex Dow Corning) containing amine side groups
• PWK a commercially available cationic fabric softener Prepagen WK, which is approximately dihardened tallow dimethyl ammonium chloride
• S1 a polysiloxane of general formula (I) in which R, R1 and R2 are methyl, R3 is isopropyl, A is the group -(CH2)3 OCH2 CH(OH)CH2, n is 53, m is 5 and Z is actetate
• S1A identical to S1 except n is 83
• S1B identical to S1 except n is 38
• Brij 72 a C18 alcohol ethoxylated with 2EO groups
• GMS glycerol monostearate
• Tween 60 a polyoxyethylene sorbitan monostearate containing 20 ethylene oxide groups per molecule.
• Examples 1 to 7 are comparative.
• Examples 8 to 10 are according to the invention.
• compositions containing a nonionic fabric softener and a polysiloxane were prepared according to the formulations given below.
• the compositions were prepared by melting the active ingredients at 70°C.
• the molten mixture thus formed was dispersed into hot water at 70°C and cooled to room temperature.
• a non-treated fabric had a softness ranking of 8.
• test composition was stored in a screw-capped polyethylene bottle for 16 hours at a temperature of about -10°C. The composition was then allowed to thaw at ambient temperature for 8 hours.

Landscapes

• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Engineering & Computer Science (AREA)
• Textile Engineering (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
• Silicon Polymers (AREA)

Applications Claiming Priority (2)

Publications (2)

Family

ID=10612644

Family Applications (1)

Country Status (4)

Families Citing this family (2)

Family Cites Families (4)

• 1987
  • 1987-02-20 GB GB878704001A patent/GB8704001D0/en active Pending
• 1988
  • 1988-02-18 EP EP88301345A patent/EP0287199A3/de not_active Withdrawn
  • 1988-02-18 JP JP63036445A patent/JPS63243376A/ja active Pending
  • 1988-02-18 GB GB08803770A patent/GB2201696A/en active Pending
  • 1988-02-19 ZA ZA881179A patent/ZA881179B/xx unknown

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