EP1238051A1 - Procede de traitement de tissu - Google Patents

Procede de traitement de tissu

Info

Publication number
EP1238051A1
EP1238051A1 EP00969560A EP00969560A EP1238051A1 EP 1238051 A1 EP1238051 A1 EP 1238051A1 EP 00969560 A EP00969560 A EP 00969560A EP 00969560 A EP00969560 A EP 00969560A EP 1238051 A1 EP1238051 A1 EP 1238051A1
Authority
EP
European Patent Office
Prior art keywords
substance
fabric
fibres
composition
sunscreen
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Withdrawn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
EP00969560A
Other languages
German (de)
English (en)
Inventor
Stephen N. Unilever Res. Port Sunlight BATCHELOR
Denise Angela Unilever Res. Port Sunlight CARR
Colette E. Unilever Res. Port Sunlight COLEMAN
Lynette Unilever Res. Port Sunlight FAIRCLOUGH
Dax Unilever Research Port Sunlight KUKULJ
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.)
Unilever NV
Original Assignee
Unilever NV
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 Unilever NV filed Critical Unilever NV
Publication of EP1238051A1 publication Critical patent/EP1238051A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • C11D3/221—Mono, di- or trisaccharides 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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3749—Polyolefins; Halogenated polyolefins; Natural or synthetic rubber; Polyarylolefins or halogenated polyarylolefins
    • 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
    • C11D3/37—Polymers
    • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3753—Polyvinylalcohol; Ethers or esters 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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3746—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3757—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/46—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing natural macromolecular substances or derivatives thereof
    • D06P1/48—Derivatives of carbohydrates
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/52—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances
    • D06P1/5207—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • D06P1/5214—Polymers of unsaturated compounds containing no COOH groups or functional derivatives thereof
    • D06P1/5221—Polymers of unsaturated hydrocarbons, e.g. polystyrene polyalkylene
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/52—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances
    • D06P1/5207—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • D06P1/5214—Polymers of unsaturated compounds containing no COOH groups or functional derivatives thereof
    • D06P1/5228—Polyalkenyl alcohols, e.g. PVA
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/52—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing synthetic macromolecular substances
    • D06P1/5207—Macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • D06P1/525—Polymers of unsaturated carboxylic acids or functional derivatives thereof
    • D06P1/5257—(Meth)acrylic acid
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
    • D06P1/642—Compounds containing nitrogen
    • D06P1/6426—Heterocyclic compounds
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/64—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders using compositions containing low-molecular-weight organic compounds without sulfate or sulfonate groups
    • D06P1/651—Compounds without nitrogen
    • D06P1/65106—Oxygen-containing compounds
    • D06P1/65118—Compounds containing hydroxyl groups
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D06P5/02—After-treatment
    • D06P5/04—After-treatment with organic compounds
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P5/00—Other features in dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form
    • D06P5/02—After-treatment
    • D06P5/04—After-treatment with organic compounds
    • D06P5/08—After-treatment with organic compounds macromolecular

Definitions

  • This invention relates to a method of treating fabric.
  • the invention relates to a method of treating fabric comprising dyed cellulosic fibres so as to increase its photostability.
  • the invention also relates to the use of certain substances for increasing the photostability of dyed cellulosic fibres, to textile material treated with the substances and to fabric care compositions comprising the substances.
  • Cellulosic fibres such as cotton, viscose, Tencel® and Modal®, are constructed from polyglucosan chains arranged into amorphous and crystalline regions (see, for example, Cellulose, Krassig, H. A. Gordon and Breach Science Publishers, Switzerland 1993). When these materials are dyed for use in garments, the dye is predominantly situated in the amorphous region of the structure. The nature of the amorphous environment is therefore important in controlling the behaviour of dyes in dyed cellulosic garments.
  • ROS reactive oxygen species
  • photostability refers to the chemical stability of the dye in the cellulosic product on exposure to natural sunlight in the presence of atmospheric oxygen.
  • the present invention provides the use of a substance which is absorbed into and/or coats cellulosic fibres, to increase the photostability of a fabric which comprises dyed cellulosic fibres, by inhibiting the diffusion of atmospheric oxygen into and/or within the fibres.
  • the invention provides textile material comprising a fabric which comprises dyed cellulosic fibres, wherein the fabric has been treated with a sunscreen and a substance which is absorbed into and/or coats the fibres such that the diffusion of atmospheric oxygen into and/or within the fibres is inhibited.
  • the textile material of the invention is suitable for use in all environments and, for example, may be in the form of a garment or a sheet suitable for making into a garment. Alternatively, the textile material may be more rigid and may be suitable for use in other applications where more rigid fabrics are used such as in automative textiles or for heavy duty outdoor use (eg, shop awnings). Embodiments of the invention which relate to the treatment of garments are preferred.
  • a fabric care composition comprising a sunscreen and a substance which is capable of being absorbed into and/or of coating cellulosic fibres such that the diffusion of atmospheric oxygen into and/or within the fibres is reduced, together with a textile compatible carrier which facilitates contact between the substance and the fabric. This is believed to further reduce the extent of photo-fading.
  • the dyed cellulosic fibres which may be treated according to the invention include, for example, cotton, viscose and Tencel®.
  • the cellulosic fibres may form all or part of a fabric which is treated according to the invention.
  • the fabric is not completely of cellulosic fibres (that is to say, for example, not 100% cotton)
  • the remaining fibres in the fabric may be those conventionally used in the art such as polyester and polyamide, for example, and mixtures thereof.
  • the fabric treated according to the invention comprises from 50% to 100% cotton, more preferably from 75% to 100% cotton.
  • the fabric which is treated in the method of the invention may be woven, non-woven or knitted. However, when the cellulosic fibres comprise cotton, the fabric is preferably woven.
  • the invention is preferably applied to cellulosic fibres dyed with a dye which is at least partly absorbed into the amorphous regions in the fibres, although it may be applied to fibres wherein some of the dye is present at the surface of the fibres.
  • the present invention increases photostability at least partly by the substance acting as a physical barrier to inhibit diffusion of atmospheric molecular oxygen into the fibres and thus inhibiting reaction of oxygen with the dye.
  • the substance may be considered as acting as a physical barrier to the diffusion of molecular oxygen into and/or within the fibres. Therefore, the invention can be expected to be effective with many different substances and classes of dye which are susceptible to photodegradation in the presence of oxygen.
  • the fabric treated according to the invention may be dyed with a single dye, a mixture of dyes or may comprise some parts of fibres treated with one dye or mixture of dyes and other parts or fibres treated with another dye or another mixture of dyes.
  • the fabric may have a single colour or different colours.
  • Suitable sunscreens for use on fabrics are well-known to those skilled in the art and include those described in Oxidation Inhibition in Organic Materials, eds Pospisil et al, CRC Press 1990 ISBN 0-8493-4767-X(Vl), 0-8493-4768-8 (V2). Sunscreens may be used in the invention either alone or in combination.
  • Preferred sunscreen include benzotriazoles.
  • the sunscreen may be applied to the fabric before treatment with the substance in the invention, at the same time as the treatment with the substance or after the treatment with the substance.
  • the combination of the use of a sunscreen and the compound of the mvention provides a surprisingly good improvement in the photostability of dyed fabrics.
  • the sunscreen is preferably applied to the fabric to give an amount of up to 1% by weight on weight of fabric (owf).
  • the weight ratio of substance to sunscreen applied to the fabric preferably lies in the range of 5,000: 1 to 5: 1, more preferably 500: 1 to 10: 1.
  • the method of the invention may be carried out as part of a laundering process or an industrial textile treatment.
  • Laundering processes most preferably comprise domestic laundering processes.
  • the substance When used in a domestic laundering process, the substance may be in the form of the fabric care composition of the invention.
  • the fabric care composition of the invention may be a main wash detergent composition, in which case the textile compatible carrier may include a detergent (such as anionic, non- ionic and cationic surfactants, for example) and the composition may include other conventional components sometimes contained in such compositions (such as enzymes, optical brighteners, soil release polymers, suds suppressors and anti-redeposition agents, for example).
  • the fabric care composition may be adapted for use in the rinse cycle of a laundering process, in which case the textile compatible carrier may be a cationic softener, for example, and the composition may contain other components that are conventionally present in compositions of this type.
  • the fabric care composition and/or the substance are adapted such that at least 5.0% by weight on weight of fabric, more preferably 5.0% to 20% of the substance remains absorbed into and/or coated onto the fibres of the fabric after a conventional laundering process.
  • the term "textile compatible carrier” is a component which can assist in the interaction of the substance with the fabric.
  • the carrier can also provide benefits in addition to those provided by the first component e.g. softening, cleaning etc.
  • the carrier may be a water or a detergent- active compound or a fabric softener or conditioning compound or other suitable detergent or fabric treatment agent.
  • the textile-compatible carrier will typically be a detergent- active compound.
  • the textile- compatible carrier will be a fabric softening and/or conditioning compound.
  • composition of the invention is to be used before, or after, the laundry process it may be in the form of a spray or foaming product.
  • the composition of the invention is preferably used to treat the fabric in the rinse cycle of a laundering process.
  • the rinse cycle preferably follows the treatment of the fabric with a detergent composition.
  • the textile-compatible carrier may be chosen from soap and non-soap anionic, cationic, nonionic, amphoteric and zwitterionic detergent active compounds, and mixtures thereof.
  • the preferred textile-compatible carriers that can be used are soaps and synthetic non-soap anionic and nonionic compounds.
  • Anionic surfactants are well-known to those skilled in the art. Examples include alkylbenzene sulphonates, particularly linear alkylbenzene sulphonates having an alkyl chain length of C 8 -C ⁇ 5 ; primary and secondary alkylsulphates, particularly Cg-C] 5 primary alkyl sulphates; alkyl ether sulphates; olefin sulphonates; alkyl xylene sulphonates; dialkyl sulphosuccinates; and fatty acid ester sulphonates.
  • Sodium salts are generally preferred.
  • Nonionic surfactants that may be used include the primary and secondary alcohol ethoxylates, especially the C 8 -C 0 aliphatic alcohols ethoxylated with an average of from 1 to 20 moles of ethylene oxide per mole of alcohol, and more especially the C 10 -C ]5 primary and secondary aliphatic alcohols ethoxylated with an average of from 1 to 10 moles of ethylene oxide per mole of alcohol.
  • Non-ethoxylated nonionic surfactants include alkylpolyglycosides, glycerol monoethers, and polyhydroxyamides (glucamide).
  • Cationic surfactants that may be used include quaternary ammonium salts of the general formula R ⁇ R ⁇ N * wherein the R groups are independently hydrocarbyl chains of C C 22 length, typically alkyl, hydroxyalkyl or ethoxylated alkyl groups, and X is a solubilising cation (for example, compounds in which R] is a C 8 -C 22 alkyl group, preferably a C 8 -C 10 or C 12 - C 14 alkyl group, R 2 is a methyl group, and R 3 and R 4 , which may be the same or different, are methyl or hydroxyethyl groups); and cationic esters (for example, choline esters) and pyridinium salts.
  • R groups are independently hydrocarbyl chains of C C 22 length, typically alkyl, hydroxyalkyl or ethoxylated alkyl groups
  • X is a solubilising cation
  • R] is a C 8 -C
  • the total quantity of detergent surfactant in the composition is suitably from 0.1 to 60 wt% e.g. 0.5-55 wt%, such as 5-50wt%.
  • the quantity of anionic surfactant (when present) is in the range of from 1 to 50% by weight of the total composition. More preferably, the quantity of anionic surfactant is in the range of from 3 to 35% by weight, e.g. 5 to 30% by weight.
  • the quantity of nonionic surfactant when present is in the range of from 2 to 25%> by weight, more preferably from 5 to 20% by weight.
  • Amphoteric surfactants may also be used, for example amine oxides or betaines.
  • the compositions may suitably contain from 10 to 70%, preferably from 15 to 70% by weight, of detergency builder.
  • the quantity of builder is in the range of from 15 to 50% by weight.
  • the detergent composition may contain as builder a crystalline aluminosilicate, preferably an alkali metal aluminosilicate, more preferably a sodium aluminosilicate.
  • the aluminosilicate may generally be incorporated in amounts of from 10 to 70% by weight (anhydrous basis), preferably from 25 to 50%.
  • Aluminosilicates are materials having the general formula:
  • M is a monovalent cation, preferably sodium.
  • M a monovalent cation
  • These materials contain some bound water and are required to have a calcium ion exchange capacity of at least 50 mg CaO/g.
  • the preferred sodium aluminosilicates contain 1.5-3.5 Si0 2 units in the formula above. They can be prepared readily by reaction between sodium silicate and sodium aluminate, as amply described in the literature.
  • the textile-compatible carrier will be a fabric softening and/or conditioning compound (hereinafter referred to as "fabric softening compound”), which may be a cationic or nonionic compound.
  • fabric softening compound may be water insoluble quaternary ammonium compounds.
  • the compounds may be present in amounts of up to 8% by weight (based on the total amount of the composition) in which case the compositions are considered dilute, or at levels from 8% to about 50% by weight, in which case the compositions are considered concentrates.
  • compositions suitable for delivery during the rinse cycle may also be delivered to the fabric in the tumble dryer if used in a suitable form.
  • another product form is a composition (for example, a paste) suitable for coating onto, and delivery from, a substrate e.g. a flexible sheet or sponge or a suitable dispenser during a tumble dryer cycle.
  • the composition of the invention may be in the form of such a coated substrate.
  • Suitable cationic fabric softening compounds are substantially water- insoluble quaternary ammonium materials comprising a single alkyl or alkenyl long chain having an average chain length greater than or equal to C 2 o or, more preferably, compounds comprising a polar head group and two alkyl or alkenyl chains having an average chain length greater than or equal to C 14 .
  • the fabric softening compounds have two long chain alkyl or alkenyl chains each having an average chain length greater than or equal to C 16 . Most preferably at least 50% of the long chain alkyl or alkenyl groups have a chain length of C ⁇ 8 or above. It is preferred if the long chain alkyl or alkenyl groups of the fabric softening compound are predominantly linear.
  • Quaternary ammonium compounds having two long-chain aliphatic groups for example, distearyldimethyl ammonium chloride and di(hardened tallow alkyl) dimethyl ammonium chloride, are widely used in commercially available rinse conditioner compositions.
  • Other examples of these cationic compounds are to be found in "Surface- Active Agents and Detergents", Volumes I and II, by Schwartz, Perry and Berch. Any of the conventional types of such compounds may be used in the compositions of the present invention.
  • the fabric softening compounds are preferably compounds that provide excellent softening, and are characterised by a chain melting L ⁇ to L ⁇ transition temperature greater than 25°C, preferably greater than 35°C, most preferably greater than 45°C.
  • This L ⁇ to L ⁇ transition can be measured by DSC as defined in "Handbook of Lipid Bilayers", D Marsh, CRC Press, Boca Raton, Florida, 1990 (pages 137 and 337).
  • Substantially water-insoluble fabric softening compounds are defined as fabric softening compounds having a solubility of less than 1 x 10 " wt % in demineralised water at 20°C.
  • the fabric softening compounds have a solubility of less than 1 x 10 "4 wt%, more preferably less than 1 x 10 " 8 to l x l0 "6 wt%.
  • cationic fabric softening compounds that are water- insoluble quaternary ammonium materials having two C ⁇ -22 alkyl or alkenyl groups connected to the molecule via at least one ester link, preferably two ester links.
  • An especially preferred ester-linked quaternary ammonium material can be represented by the formula II: R ⁇
  • each Rj group is independently selected from C 1- alkyl or hydroxyalkyl groups or C 2- alkenyl groups; each R 2 group is independently selected from C 8-28 alkyl or alkenyl groups; and wherein R 3 is a linear or branched alkylene group of 1 to 5 carbon atoms, T is
  • Di(tallowoxyloxyethyl) dimethyl ammonium chloride and/or its hardened tallow analogue is especially preferred of the compounds of formula (II).
  • a second preferred type of quaternary ammonium material can be represented by the formula (III):
  • R ⁇ ,p and R 2 are as defined above.
  • the quaternary ammonium material is biologically biodegradable.
  • Preferred materials of this class such as 1 ,2-bis(hardened tallowoyloxy)-3- trimethylammonium propane chloride and their methods of preparation are, for example, described in US 4 137 180 (Lever Brothers Co).
  • Preferably these materials comprise small amounts of the corresponding monoester as described in US 4 137 180, for example, 1-hardened tallowoyloxy-2- hydroxy-3 -trimethylammonium propane chloride.
  • cationic softening agents are alkyl pyridinium salts and substituted imidazoline species. Also useful are primary, secondary and tertiary amines and the condensation products of fatty acids with alkylpolyamines.
  • compositions may alternatively or additionally contain water-soluble cationic fabric softeners, as described in GB 2 039 556B (Unilever).
  • compositions may comprise a cationic fabric softening compound and an oil, for example as disclosed in EP-A-0829531.
  • the compositions may alternatively or additionally contain nonionic fabric softening agents such as lanolin and derivatives thereof.
  • Lecithins are also suitable softening compounds.
  • Nonionic softeners include L ⁇ phase forming sugar esters (as described in M Hato et al Langmuir 12, 1659, 1666, (1996)) and related materials such as glycerol monostearate or sorbitan esters. Often these materials are used in conjunction with cationic materials to assist deposition (see, for example, GB 2 202 244). Silicones are used in a similar way as a co-softener with a cationic softener in rinse treatments (see, for example, GB 1 549 180).
  • compositions may also suitably contain a nonionic stabilising agent.
  • Suitable nonionic stabilising agents are linear C 8 to C 22 alcohols alkoxylated with 10 to 20 moles of alkylene oxide, C 10 to C 20 alcohols, or mixtures thereof.
  • the nonionic stabilising agent is a linear C 8 to C 22 alcohol alkoxylated with 10 to 20 moles of alkylene oxide.
  • the level of nonionic stabiliser is within the range from 0.1 to 10% by weight, more preferably from 0.5 to 5% by weight, most preferably from 1 to 4% by weight.
  • the mole ratio of the quaternary ammonium compound and/or other cationic softening agent to the nonionic stabilising agent is suitably within the range from 40: 1 to about 1 : 1, preferably within the range from 18:1 to about 3:1.
  • the composition can also contain fatty acids, for example: C 8 to C 24 alkyl or alkenyl monocarboxylic acids or polymers thereof.
  • saturated fatty acids are used, in particular, hardened tallow C 16 to Cis fatty acids.
  • the fatty acid is non-saponified, more preferably the fatty acid is free, for example oleic acid, lauric acid or tallow fatty acid.
  • the level of fatty acid material is preferably more than 0.1% by weight, more preferably more than 0.2% by weight.
  • Concentrated compositions may comprise from 0.5 to 20% by weight of fatty acid, more preferably 1% to 10% by weight.
  • the weight ratio of quaternary ammonium material or other cationic softening agent to fatty acid material is preferably from 10:1 to 1 : 10.
  • the fabric conditioning compositions may include silicones, such as predominately linear polydialkylsiloxanes, e.g. polydimethylsiloxanes or aminosilicones containing amine-functionalised side chains; soil release polymers such as block copolymers of polyethylene oxide and terephthalate; amphoteric surfactants; smectite type inorganic clays; zwitterionic quaternary ammonium compounds; and nonionic surfactants.
  • silicones such as predominately linear polydialkylsiloxanes, e.g. polydimethylsiloxanes or aminosilicones containing amine-functionalised side chains
  • soil release polymers such as block copolymers of polyethylene oxide and terephthalate
  • amphoteric surfactants such as smectite type inorganic clays
  • zwitterionic quaternary ammonium compounds such as sodium quaternary ammonium compounds.
  • the fabric conditioning compositions may also include an agent which produces a pearlescent appearance, e.g. an organic pearlising compound such as ethylene glycol distearate, or inorganic pearlising pigments such as microfme mica or titanium dioxide (Ti0 2 ) coated mica.
  • an agent which produces a pearlescent appearance e.g. an organic pearlising compound such as ethylene glycol distearate, or inorganic pearlising pigments such as microfme mica or titanium dioxide (Ti0 2 ) coated mica.
  • the fabric conditioning compositions may be in the form of emulsions or emulsion precursors thereof.
  • Other optional ingredients include emulsifiers, electrolytes (for example, sodium chloride or calcium chloride) preferably in the range from 0.01 to 5% by weight, pH buffering agents, and perfumes (preferably from 0.1 to 5% by weight).
  • Further optional ingredients include non-aqueous solvents, perfume carriers, fluorescers, colourants, hydrotropes, antifoaming agents, antiredeposition agents, enzymes, optical brightening agents, opacifiers, dye transfer inhibitors, anti- shrinking agents, anti-wrinkle agents, anti-sporting agents, germicides, fungicides, anti-oxidants, UV absorbers (sunscreens), heavy metal sequestrants, chlorine scavengers, dye fixatives, anti-corrosion agents, drape imparting agents, antistatic agents and ironing aids. This list is not intended to be exhaustive.
  • the composition of the mvention may be in the form of a liquid, solid (e.g. powder or tablet), a gel or paste, spray, stick or a foam or mousse. Examples including a soaking product, a rinse treatment (e.g. conditioner or finisher) or a mainwash product.
  • the composition may also be applied to a substrate e.g. a flexible sheet or used in a dispenser which can be used in the wash cycle, rinse cycle or during the dryer cycle.
  • the composition may be in the form of the substrate with the composition applied thereto.
  • the industrial textile treatment methods of the invention generally involve large scale processes for treating fabric.
  • the methods may be batch or continuous processes. They include dyeing of fibres or fabric, treating fabric prior to it being made up into garments and the treatment of garments after they have been made up.
  • Industrial treatment methods include dry cleaning processes.
  • the substance used in the invention is preferably soluble in a solvent.
  • a solvent such as substances having a water solubility of greater than 5% by weight, more preferably greater than 10% by weight.
  • the substance may be soluble in a non-aqueous solvent (such as, for example, toluene). Substances which are water-soluble are preferred for ease of application.
  • the substances used in the invention are desirably colourless (ie, transparent to visible light) so as not to interfere with the colour of the dyed fabric, although they may be coloured if their colour does not interfere with the colour of the dyed fabric.
  • the materials Preferably, therefore, have a molar absorption coefficient M ⁇ 10 mol 1 " cm " within the range 400 to 800 nm.
  • the substances are preferably substantially stable in sunlight, so as not to provide a further mechanism for fading of the dye in the fabric.
  • the substances may have a degree of antioxidant or radical quenching activity in order to further enhance the ability of the compounds to increase the photostability of the fabric by neutralising reactive oxygen species (ROS) before they can react with the dye molecules in the cellulosic fibres.
  • ROS reactive oxygen species
  • the substances are preferably capable of forming a continuous layer around the fibres and, where the substances coat the fibres, they preferably form a coating having a low permeability to oxygen (ie, a permeability constant of less than 10 [cm ][cm]/[cm ][s][Pa]).
  • the substances are neutral molecules, or mixtures thereof.
  • Substances which meet the requirements mentioned above include carbohydrates.
  • Suitable carbohydrates include relatively low molecular weight substances, such as mono- and di- saccharides (eg, sucrose and cellobiose) for example. Higher molecular weight polysaccharides have also been found to be useful in the present invention including tri- and higher saccharides eg, maltotriose.
  • Other suitable substances include polysaccharides (eg, dextran). Dextrans are useful on account of their ready availability.
  • organic polymers including homo- and co-polymers.
  • Co-polymers may be random or block copolymers.
  • organic polymers which may be used include, for example: polyacrylates, polymethacrylates and their copolymers, eg, poly(methyl methacrylate), poly(ethyl methacrylate), poly(methyl acrylate), poly(ethyl acrylate), poly(propyl acrylate), poly(butyl acrylate) and acrylate copolymers with other acrylic or non- acrylic monomers, such as poly (ethyl methacrylate co methyl acrylate); polystyrene and its copolymers, eg, copolymers of styrene with other olefins such as butadiene and isoprene (for instance, polystyrene-polybutadiene- polystyrene block
  • the compounds are preferably applied to the fabric as a solution, by dipping or spraying for example, although other methods of application may be employed eg, using different solvents or the compound in liquid form.
  • the substance may be applied to the fabric in conjunction with other components, such as a sunscreen, for example.
  • the sunscreen may be applied before or after the application of the substance.
  • Cotton dyed in strips with 16 different dyes was purchased from Veebee Tech (Harrogate, UK). The dyes chosen cover a wide range of typical dye types.
  • sucrose a compound which is absorbed into and/or coated onto the fibres
  • the benefit increases with the amount of sucrose added, although it will be appreciated that the higher levels of sucrose may be less preferred on account of the other changes that they impart to the fabric (eg, stiffness and water attraction).
  • the cotton strips used in example 1 were padded with sucrose, such that there was 40% owf.
  • a benzotriazole sunscreen (Tinuvin 571 (trade mark), ex Ciba Speciality Chemicals) was also padded on (from ethanol). They were placed in a weatherometer (WOM) for 40 hours, removed, washed in deionized water and the CIELAB ⁇ E units measured using a reflectance spectrometer. All showed a reduction in photofading, and the average reduction is presented in table 3.
  • Table 3 Reduction in fading with treatments over 40 hours of fading. When used on its own 0.38% Tinuvin 571 (trade mark) gives 25% reduction in fading, which for the above would be an average ⁇ E of 5.42.
  • D-cellobiose (Aldrich) was padded onto the dyed cotton of Example 1 to give 9.0% owf.
  • the cloth was irradiated in a WOM for 40 hours. The cloth was removed and compared to a control that had been irradiated without treatment.
  • the cellobiose treated cloth gave an average ⁇ E of 6.6 compared to the control of 7.4. Again photofading had been inhibited.
  • Example 6 Maltotriose hydrate (Aldrich) was padded onto dyed cotton of Example 1 (excluding dye 15) from a water solution containing 4.5% of the sugar, then dried. The cloth was irradiated in a WOM for 40 hours. The cloth was removed and compared to a control that had been irradiated without treatment. The cellobiose treated cloth gave an average of ⁇ E of 4.0 compared to the control of 8.0. Again photofading had been inhibited.
  • Polystyrene (Aldrich) was padded onto the dyed cotton of Example 1 from a toluene solution containing 10% of the polymer. The cloth was irradiated in a WOM for 18 hours. The cloth was removed and compared to a control that had been irradiated without treatment. The polystyrene treated cloth gave an average ⁇ E of 3.4 compared to the control of 4.9. Again photofading had been inhibited.
  • Polystyrene (block-polybutadiene-block-polystyrene; 28% styrene) (Aldrich) was padded onto the dyed cotton of Example 1 from a toluene solution containing 6.6% of the polymer. The cloth was irradiated in a WOM for 15 hours. The cloth was removed and compared to a control that had been irradiated without treatment. The polystyrene treated cloth gave an average ⁇ E of 2.9 compared to the control of 3.9. Again photofading had been inhibited.
  • Polyvinylalchol 14 000 RMM (Aldrich) was padded onto the dyed cotton of Example 1 from a water solution containing 10% of the polymer. The cloth was irradiated in a WOM for 18 hours. The cloth was removed and compared to a control that had been irradiated without treatment. The polyvinyl alcohol treated cloth gave an average ⁇ E of 1.9 compared to the control of 3.9. Again photofading had been inhibited.
  • the polymers listed in the following table were padded onto the dyed cotton of Example 1 from a toluene solution, with and without the benzotriazole sunscreen Tinuvin 571 (trade mark) (ex Ciba Speciality chemicals).
  • the cloth was irradiated in a WOM for 24 hours. The cloth was removed and compared to a control that had been irradiated without treatment.
  • a fabric conditioning composition according to the invention was prepared by adding a water dispersed polymer dispersion, Prinlin B7216A (trade mark) (obtained from Pierce and Stevens Corp, USA) to a standard fabric conditioning composition, Comfort (trade mark) (Unilever, UK).

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

Abstract

La présente invention concerne un procédé de traitement de tissu comprenant des fibres cellulosiques teintes, qui permet d'améliorer la photostabilité dudit tissu. Ce procédé consiste à appliquer sur le tissu une substance qui est absorbée dans et/ou appliquée sur les fibres, de façon que la diffusion d'oxygène atmosphérique dans et/ou à l'intérieur des fibres est inhibée. Ce procédé peut faire partie d'un processus de blanchissage ou d'un traitement de textile industriel. Ce procédé est particulièrement efficace lorsque le composé est utilisé en association avec un écran solaire, tel qu'un benzotriazole.
EP00969560A 1999-11-25 2000-10-27 Procede de traitement de tissu Withdrawn EP1238051A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9927902 1999-11-25
GBGB9927902.8A GB9927902D0 (en) 1999-11-25 1999-11-25 Method of treating fabric
PCT/EP2000/010618 WO2001038470A1 (fr) 1999-11-25 2000-10-27 Procede de traitement de tissu

Publications (1)

Publication Number Publication Date
EP1238051A1 true EP1238051A1 (fr) 2002-09-11

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EP00969560A Withdrawn EP1238051A1 (fr) 1999-11-25 2000-10-27 Procede de traitement de tissu

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Country Link
EP (1) EP1238051A1 (fr)
AU (1) AU7923600A (fr)
BR (1) BR0015799A (fr)
CA (1) CA2390130A1 (fr)
GB (1) GB9927902D0 (fr)
WO (1) WO2001038470A1 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57128283A (en) * 1981-01-23 1982-08-09 Nikka Chemical Ind Co Ltd Treatment of fiber product
DE3530302A1 (de) * 1985-08-24 1987-03-05 Henkel Kgaa Textilbehandlungsmittel
DE3821778A1 (de) * 1988-06-28 1990-02-08 Rotta Gmbh & Co Dr Schlichtemittel
EP0523956B2 (fr) * 1991-07-17 1999-02-03 Unilever Plc Composition pour le traitement du linge contenant un copolymère soluble dans l'eau ou dispersé dans l'eau avec un monomère absorbant les rayons ultraviolets
JP2571493B2 (ja) * 1992-06-04 1997-01-16 株式会社資生堂 皮膚外用剤
US5486297A (en) * 1994-06-14 1996-01-23 The Procter & Gamble Company Dye fading protection from soil release agents
US5474691A (en) * 1994-07-26 1995-12-12 The Procter & Gamble Company Dryer-added fabric treatment article of manufacture containing antioxidant and sunscreen compounds for sun fade protection of fabrics
WO1998030663A2 (fr) * 1997-01-10 1998-07-16 Unilever Plc Compositions de traitement de tissus
GB9801078D0 (en) * 1998-01-19 1998-03-18 Unilever Plc Improvements relating to hard surface cleaners
GB9821210D0 (en) * 1998-09-30 1998-11-25 Unilever Plc Polymer compounds and compositions comprising them

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0138470A1 *

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WO2001038470A1 (fr) 2001-05-31
CA2390130A1 (fr) 2001-05-31
GB9927902D0 (en) 2000-01-26
AU7923600A (en) 2001-06-04
BR0015799A (pt) 2002-07-23

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