EP1902122A1 - Dye delivery granules - Google Patents

Dye delivery granules

Info

Publication number
EP1902122A1
EP1902122A1 EP06724764A EP06724764A EP1902122A1 EP 1902122 A1 EP1902122 A1 EP 1902122A1 EP 06724764 A EP06724764 A EP 06724764A EP 06724764 A EP06724764 A EP 06724764A EP 1902122 A1 EP1902122 A1 EP 1902122A1
Authority
EP
European Patent Office
Prior art keywords
dye
solvent
granule
granule according
group
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Withdrawn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
EP06724764A
Other languages
German (de)
English (en)
French (fr)
Inventor
Stephen N. Unilever R & D Port Sunlight BATCHELOR
Jayne Michelle Unilever R & D Port Sunlight BIRD
Andrew Paul Unilever R & D Port Sunlight CHAPPLE
Peter Unilever R & D Port Sunlight GRAHAM
Angela Quadir
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 PLC
Unilever NV
Original Assignee
Unilever PLC
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 PLC, Unilever NV filed Critical Unilever PLC
Publication of EP1902122A1 publication Critical patent/EP1902122A1/en
Withdrawn legal-status Critical Current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
    • C11D11/00—Special methods for preparing compositions containing mixtures of detergents
    • C11D11/0082—Special methods for preparing compositions containing mixtures of detergents one or more of the detergent ingredients being in a liquefied state, e.g. slurry, paste or melt, and the process resulting in solid detergent particles such as granules, powders or beads
    • 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
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0063—Photo- activating 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
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/12—Water-insoluble compounds
    • C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
    • C11D3/1246—Silicates, e.g. diatomaceous earth
    • C11D3/1253—Layer silicates, e.g. talcum, kaolin, clay, bentonite, smectite, montmorillonite, hectorite or attapulgite
    • C11D3/126—Layer silicates, e.g. talcum, kaolin, clay, bentonite, smectite, montmorillonite, hectorite or attapulgite in solid compositions
    • 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
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/12—Water-insoluble compounds
    • C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
    • C11D3/1246—Silicates, e.g. diatomaceous earth
    • C11D3/128—Aluminium silicates, e.g. zeolites
    • 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
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2079—Monocarboxylic acids-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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3707—Polyethers, e.g. polyalkyleneoxides
    • 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
    • C11D3/3761—(Co)polymerised carboxylic acids, -anhydrides, -esters in solid and liquid compositions in solid compositions
    • 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
    • C11D3/40—Dyes ; Pigments

Definitions

  • the present invention relates to laundry treatment compositions that comprise a dye.
  • Dyes are difficult to dissolve/disperse in water. Thus methods are required to granulate the dyes, such that they may be delivered from detergent washing powders.
  • the current invention provides such granules.
  • the method encompasses dissolving the dye in a non-aqueous but water miscible solvent to provide a solution. This solution is then mixed with a carrier material and possibly a binder to create granules suitable for dosing into a detergent powder.
  • the present invention provides a granule comprising: (i) between 5 to 40 wt% of non-volatile water miscible solvent having dissolved therein between 0.0001 to 4 wt% of a dye, wherein the dye has a solubility in the solvent of at least 0.01 wt%, preferably at least 0.5 wt%, the non-volatile water miscible solvent other than a non- ionic surfactant;
  • the present invention provides a method of granulation comprising the steps of:
  • step (i) dissolving between 0.0001 to 4% wt % of a dye in 5 to 40 wt% of a non-volatile water miscible solvent, that dye having a solubility in the non-volatile water miscible solvent of at least 0.1 wt % to form a solution of the dye in the non-volatile water miscible solvent; (ii) taking the dye solution of step (i) and mixing with from 20 to 90 wt% of a solid carrier, the non-volatile water miscible solvent other than a non-ionic surfactant; and, (iii) granulating the resultant mixture from step (ii) to form a granule for post dosing to a base powder.
  • the granule is then used to form a commercial product by taking the 0.1 to 5 wt % of the granule and mixing as a post dose with a base laundry powder to 100 wt %.
  • the present invention provides a method of treating a new or soiled textile comprising the steps of: (i) adding the granule to an agitated aqueous medium; (ii) treating a textile with the aqueous medium; and,
  • a unit dose as used herein is a particular amount of the composition used for a type of wash.
  • the unit dose may be in the form of a defined volume of powder, granules or tablet or unit dose detergent liquid.
  • the solvent may be a solid or liquid at room temperature, and compatible with inclusion in a detergent formulation. It should not be volatile, so that when included in a detergent powder it remains to maintain the dye in a dissolved state.
  • Non-volatile for the purposes of this application is defined as having a volatility less than or equal to water. Most preferably, non-volatile means having a saturated vapour pressure at 25 0 C and atmospheric pressure (101325Pa) below 3000Pa, and more preferably below 100Pa.
  • the solvent should be readily miscible with water, such that at least 1% weight solution in water of the solvent may be created.
  • Suitable solvents include surfactants, fatty acids, soaps and polymers.
  • the surfactants may be isotropic or contain a dispersed water phase, for example, anionic surfactants and aqueous anionic surfactant pastes, fatty acids, polyethylene glycol polymers.
  • they should be capable of functioning as binders or coatings in granules. So that when contacted with fine particle solids they promote particle growth by agglomeration, or spread over the surface of larger particles and solidify to create a robust coating.
  • additional binder materials such as aqueous polymer solutions may also be added to create robust granules.
  • Preferred solvents for dissolving the dye are charged species. Most preferred solvents for dissolving the dye are charged surfactants.
  • the dye is soluble in the solvent such that solution of between 0.01 and 10 wt% may be created, preferably 0.05 to 1 wt%.
  • the solvent does not include non-ionic surfactants.
  • non-ionic surfactants include surface Active Agents and reference in made to "Surface Active Agents" Vol. 1, by Schwartz & Perry, Interscience 1949, Vol. 2 by Schwartz, Perry & Berch, Interscience 1958, in the current edition of "McCutcheon' s Emulsifiers and Detergents” published by Manufacturing Confectioners Company or in "Tenside-Taschenbuch", H. Stache, 2nd Edn., Carl Hauser Verlag, 1981.
  • Non-ionic surfactant are, for example, fatty alcohol polyethylene glycol ether or fatty alcohol ethoxylates, alkylphenol ethoxylates, ethylene oxide and propylene oxide co-polymers, amine oxides, alkylamines, alkanolamines, polyglycerol esters, alkyl polyglucosides, and fatty acid N-alkylglucosamides.
  • a typical class of non-ionic surfactant is of the form H(CH 2 )m O [CH 2 CH 2 O] n H, where m is 12 to 15 and n is 3 to 9; the an alkyl chain in the range ClO to C18.
  • Typical dye suppliers may be found in the colour index, and include Clariant, Dystar, Ciba & BASF.
  • Preferred dyes are those which deposit on textile and provide a shade to the textile such that the hue angle, h, in the CIELAB system of the shade on the textile is between 220° and 320° most preferably between 250° and 290°.
  • hue angle may be found on p57 of Color Chemistry 3 rd edition by H. Zollinger published by Wiley-VCH.
  • the preferred dyes are blue or violet.
  • Preferred dyes are hydrophobic dyes those which deposit on polyester.
  • Hydrophobic dyes are defined as organic compounds with a maximum extinction coefficient greater than 1000 L/mol/cm in the wavelength range of 400 to 750 nm and that are uncharged in aqueous solution at a pH in the range from 7 to 11.
  • the hydrophobic dyes are devoid of polar solubilizing groups. In particular the hydrophobic dye does not contain any sulphonic acid, carboxylic acid, or quaternary ammonium groups.
  • the dye chromophore is preferably selected from the group comprising: azo; methine, pyrazole, napthoquinone, anthraquinone, phthalocyanine; and, triphenylmethane chromophores . Most preferred are azo and anthraquinone dye chromophores .
  • hydrophobic dyes are found in the classes of solvent and disperse dyes.
  • Shading of white garments may be done with any colour depending on consumer preference.
  • Blue and Violet are particularly preferred shades and consequently preferred dyes or mixtures of dyes are ones that give a blue or violet shade on white polyester.
  • suitable solvent and disperse dyes are available. However detailed toxicological studies have shown that a number of such dyes are possible carcinogens, such dyes are not preferred.
  • Preferred mono-azo dyes are of the form:
  • R3 and R4 are optionally substituted C2 to C12 alkyl chains having optionally therein ether (-0-) or ester links, the chain being optionally substituted with -Cl, -Br, -CN, - NO 2 , and -SO 2 CH 3 ; and, D denotes an aromatic or hetroaromatic group.
  • D is selected from the group consisting of: azothiophenes, azobenzothiazoles and azopyridones .
  • R3 is -CH2CH2R5 and R4 and is -CH2CH2R6 and R5 and R6 are independently selected from the group consisting of: H, -CN, -OH, -C6H5, -OCOR7 and -COOR7, and that R7 is independently selected from: aryl and alkyl.
  • Preferred aryl are -C6H5 and C10H7.
  • X and Y are independently selected from the group consisting of: -H, -Cl, -Br, -CN, -NO 2 , and -SO 2 CH 3 ,.
  • A is selected -H, -CH 3 , -Cl, and -NHCOR;
  • B is selected -H, -OCH 3 , -OC 2 H 5 , and -Cl;
  • R 1 and R 2 are independently selected from the group consisting of: -H, -CN, -OH, -OCOR, -COOR, -aryl;
  • R is Cl-C8-alkyl
  • azo dyes Disperse blue 10, 11, 12, 21, 30, 33, 36, 38, 42, 43, 44, 47,79, 79:1, 79:2, 79:3, 82, 85, 88, 90, 94, 96, 100, 101, 102, 106, 106:1, 121, 122, 124, 125, 128, 130, 133, 137, 138, 139, 142, 146, 148, 149, 165, 165:1, 165:2, 165:3, 171, 173, 174, 175, 177, 183, 187, 189, 193, 194, 200, 201, 202, 205, 206, 207, 209, 210, 211, 212, 219, 220, 222, 224, 225, 248, 252, 253, 254, 255, 256, 257, 258, 259, 260, 264, 265, 266, 267, 268, 269, 270, 278, 279, 281, 283, 284, 28
  • Disperse Blue 250, 354, 364, 366 Solvent Violet 8
  • solvent blue 43 solvent blue 57
  • Lumogen F Blau 650 and Lumogen F Violet 570.
  • the dye may be fluorescent.
  • Preferred anthraquinone are of the following structure (I):
  • Rl, R4 , R5, and R8 are independently selected from the groups consisting of -H, -OH, -NH 2 , -NHR9, and -NO 2 , such that a maximum of only one -NO2 group and a maximum of two - H are present as Rl, R4, R5, and R8 substituents;
  • R9 is an branched or linear Cl-C7-alkyl chain or an aryl group or substituted aryl groups, or a branched or linear C1-C7- alkyl chain optionally substituted by an -OH group;
  • R2, R3, R6, and R7 may be selected from -H, -F, -Br, -Cl, SO3aryl or -NO 2 , and -ORlO, wherein RlO is selected from the group consisting of branched or linear Cl-C7-alkyl or aryl; and, R2 and R3 may together be joined to form a five membered non-ar
  • the branched or linear alkyl chain of R9 and RlO have less than six carbon atoms. It is preferred that Rl, R4, R5, and R8 are independently selected from the groups consisting of -H, -OH, -NH 2 , and -NO 2 , and R2, R3, R6, and R7 is selected from -H, F, Br, Cl or -NO 2 , and -Oaryl. It is also preferred that the aryl is an optionally substituted phenyl. Of the Rl, R4 , R5 and R8 it is most preferred that is -OH and one is selected from -NH2 and - NHR9.
  • RIl is -CH2CH2CH2OMe .
  • composition may also comprise between 0.0001 to 0.1 wt % of one or more other dyes having same or differing substantively to a fabric substrate.
  • dyes selected from cotton substantive shading dyes of the group consisting of: hydrolysed reactive dye; acid dye; and direct dye.
  • the reactive dyes may be considered to be made up of a chromophore which is linked to an anchoring moiety,
  • the chromophore may be linked directly to the anchor or via a bridging group.
  • the chromophore serves to provide a colour and the anchor to bind to a textile substrate.
  • a marked advantage of reactive dyes over direct dyes is that their chemical structure is much simpler, their absorption bands are narrower and the dyeing/shading are brighter; industrial Dyes, K. Hunger ed. Wiley-VCH 2003 ISBN 3-527- 30426-6.
  • mammalian contact with reactive dyes results in irritation and/or sensitisation of the respiratory tract and/or skin.
  • wash conditions are not ideal for deposition of dyes because the efficiency of deposition is low.
  • each individual anchor group of each reactive dyes is hydrolysed such that the most reactive group (s) of anchor groups of the dye is/are hydrolysed.
  • hydrolysed reactive dye encompasses both fully and partially hydrolysed reactive dyes.
  • the reactive dye may have more than one anchor. If the dye has more than one anchor, then each and every anchor, that contributes to irritation and/or sensitisation, needs to be hydrolysed to the extent discussed above.
  • the hydrolysed dyes comprise a chromophore and an anchor that are covalently bound and may be represented in the following manner: Chromophore-anchor .
  • the hydrolysed reactive dye comprises a chromophore moiety covalently bound to an anchoring group, the anchoring group for binding to cotton, the anchoring group selected from the group consisting of: a heteroaromatic ring, preferably comprising a nitrogen heteroatom, having at least one -OH substituent covalently
  • anchor group is of the form:
  • n takes a value between 1 and 3;
  • X is selected from the group consisting of: -Cl, -F, NHR, a quaternary ammonium group, -OR and -OH;
  • R is selected from: an aromatic group, benzyl, a Cl-C ⁇ - alkyl; and, wherein at least one X is -OH. It is preferred that R is selected from napthyl, phenyl, and -CH3. Most preferably the anchor group is selected from the group consisting of:
  • the chromophore is selected from the group consisting of: azo, anthraquinone, phthalocyanine, formazan and triphendioaxazine .
  • hydrolysed reactive dyes are hydrolysed Reactive Red 2, hydrolysed Reactive Blue 4, hydrolysed Reactive Black 5, and hydrolysed Reactive Blue 19.
  • X and Y must be an aromatic group, preferably both, the aromatic groups may be a substituted benzyl or napthyl group, which may be substituted with non water solubilising groups such as alkyl or alkyloxy or aryloxy groups, X and Y may not be substituted with water solubilising groups such as sulphonates or carboxylates, most preferred is where X is a nitro substituted benzyl group and Y is a benzyl group.
  • B is a napthyl or benzyl group that may be substituted with non water solubilising groups such as alkyl or alkyloxy or aryloxy groups, B may not be substituted with water solubilising groups such as sulphonates or carboxylates .
  • the naphthyl is substituted by the two SO 3 - groups in one of the following selected orientations about ring: 7,8; 6,8; 5,8; 4,8; 3,8; 7,6; 7,5; 7,4; 7,3; 6,5; 6,4; 5,4; 5,3, and 4,3;
  • X is selected from the group consisting of -OH and -NH2;
  • R is selected from the group consisting of -CH3 and -OCH3; n is an integer selected from 0, 1 2 and 3; and one of the rings A, B and C is substituted by one sulphonate group.
  • direct dyes that may be used with the present invention.
  • Preferred direct dyes are selected from the group comprising tris-azo direct blue dyes of the formula:
  • the C ring may be substituted at the 5 position by an NH 2 or NHPh group
  • X is a benzyl or napthyl ring substituted with upto 2 sulphonate groups and may be substituted at 2 position with a OH group and may also be substituted with an NH 2 or NHPh group
  • the A ring is preferably substituted by a methyl and methoxy group at the positions indicated by arrows, the A ring may also be a naphthyl ring, the Y group is a benzyl or naphthyl ring, which is substituted by sulphate group and may be mono or disubstituted by methyl groups .
  • Non-limiting examples of these dyes are direct violet 5, 7, 9, 11, 31, and 51. Further non-limiting examples of these dyes are also direct blue 34, 70, 71, 72, 75, 78, 82, and 120. Preferably the dye is direct violet 9.
  • the carrier may be water/surfactant soluble carrier or water/surfactant insoluble.
  • Preferred examples of water/surfactant soluble carriers are sodium carbonate, sodium sulphate, sodium chloride, and sodium citrate. It is however preferred that the carrier is water/surfactant insoluble and in this regard preferred carriers are zeolite [e.g., zeolite 4A and zeolite MAP (A24)], clay and minerals; most preferably clay.
  • the preferred clay is bentonite or kaolin.
  • the granule is preferably 180 to 1000 microns in maximum width. This is reflected by the ability of the granule to pass through a graded sieve.
  • the granule of the present invention preferably forms part of a laundry detergent composition.
  • ingredients present in the dye containing granule and/or other granules or powders present. These include amongst others, for example enzymes, bleaching species, sequestrants, builders, anti-re-deposition agents, anti-dye transfer agents, perfumes, transition metal catalysts, soil release agents and fluorescent agents.
  • Binders are standard in the art of laundry detergent granules, examples of which are: Sokalan® CP45, Sokalan® CP5, ethylene glycol, surfactants, anionic surfactants, nonionic surfactants, polyethylene glycol, polyvinyl pyrrolidone, polyacrylates, citric acid and mixtures thereof.
  • the laundry treatment composition may comprise bleaching species.
  • the bleaching species for example, may selected from perborate and percarbonate . These peroxyl species may be further enhanced by the use of an activator, for example, TAED or SNOBS.
  • a transition metal catalyst may be used with the peroxyl species.
  • a transition metal catalyst may also be used in the absence of peroxyl species where the bleaching is termed to be via atmospheric oxygen, see, for example WO02/48301.
  • Photobleaches including singlet oxygen photobleaches, may be used with the laundry treatment composition. A preferred photobleach is vitamin K3.
  • the laundry treatment composition most preferably comprises a fluorescent agent (optical brightener) .
  • fluorescent agents are well known and many such fluorescent agents are available commercially. Usually, these fluorescent agents are supplied and used in the form of their alkali metal salts, for example, the sodium salts.
  • the total amount of the fluorescent agent or agents used in laundry treatment composition is generally from 0.005 to 2 wt %, more preferably 0.01 to 0.1 wt %.
  • Preferred classes of fluorescer are: Di-styryl biphenyl compounds, e.g. Tinopal (Trade Mark) CBS-X, Di-amine stilbene di-sulphonic acid compounds, e.g.
  • Preferred fluorescers are: sodium 2 (4-styryl-3-sulfophenyl) -2H- napthol [1, 2-d] trazole, disodium 4, 4 ' -bis ⁇ [ (4-anilino- ⁇ - (N methyl-N-2 hydroxyethyl) amino 1, 3, 5-triazin-2- yl) ] amino ⁇ stilbene-2-2 ' disulfonate, disodium 4, 4 ' -bis ⁇ [ (4- anilino-6-morpholino-l, 3,5-triazin-2-yl) ] amino ⁇ stilbene-2- 2 ? disulfonate, and disodium 4, 4 '-bis (2- sulfoslyryl) biphenyl .
  • the composition comprises a perfume.
  • the perfume is preferably in the range from 0.001 to 3 wt %, most preferably 0.1 to 1 wt %.
  • CTFA Cosmetic, Toiletry and Fragrance Association
  • the resultant granules were sieved to remove oversize materials (>1000um) and stored in sealed containers.
  • washing powder 1.8g/L
  • the washing powder contained 18% NaLAS, 73% salts (silicate, sodium tri-poly-phosphate, sulphate, carbonate) , 3% minors including perborate, fluorescer and enzymes, remainder impurities and water.
  • salts silicate, sodium tri-poly-phosphate, sulphate, carbonate
  • minors including perborate, fluorescer and enzymes, remainder impurities and water.
  • the solution was agitated and the granules added to give 0.2 ppm of dye in solution.
  • the wash solution was then left agitating for 30 minutes, the polyester removed, rinsed and dried.
  • the exemplified granules of the present invention show low spotting and good delivery of dye to polyester.
  • the granules of the examples were separately added to a base washing powder and thoroughly mixed to give a powder with a final dye level of 0.001 and 0.004% by weight.
  • the washing powder contained 18% NaLAS, 73% salts (silicate, sodium tri- poly-phosphate, sulphate, carbonate) , 3% minors including perborate, fluorescer and enzymes, remainder impurities and water.
  • the granules of examples were separately added to a base washing powder and thoroughly mixed to give a powder with a final dye level of 0.0005 and 0.002% by weight.
  • the washing powder contained 10% NaLAS, 5% 7EO non-ionic, 1% soap, 17% zeolite A24, 12% percarbonate, 4% TAED, 40% salts (sodium sulphate, sodium carbonate) , remainder, fluorescer, enzymes, anti-redep agents, moisture, perfume, sequesterants, anti- ashing agents, antifoam and dispersants.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Detergent Compositions (AREA)
  • Medicinal Preparation (AREA)
EP06724764A 2005-07-11 2006-04-27 Dye delivery granules Withdrawn EP1902122A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0514146A GB0514146D0 (en) 2005-07-11 2005-07-11 Dye delivery granules
PCT/EP2006/004318 WO2007006357A1 (en) 2005-07-11 2006-04-27 Dye delivery granules

Publications (1)

Publication Number Publication Date
EP1902122A1 true EP1902122A1 (en) 2008-03-26

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP06724764A Withdrawn EP1902122A1 (en) 2005-07-11 2006-04-27 Dye delivery granules

Country Status (5)

Country Link
EP (1) EP1902122A1 (pt)
AR (1) AR057442A1 (pt)
BR (1) BRPI0612701A2 (pt)
GB (1) GB0514146D0 (pt)
WO (1) WO2007006357A1 (pt)

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KR20080091339A (ko) * 2006-01-18 2008-10-10 시바 홀딩 인코포레이티드 섬유 물질의 처리 방법
ES2416281T3 (es) * 2007-06-26 2013-07-31 Sociedad Anonima Minera Catalano-Aragonesa (Samca) Procedimiento de coloreado de minerales no adsorbentes y producto así obtenido
EP2031046A3 (en) * 2007-08-30 2009-09-02 Unilever Plc White powder
WO2009074488A1 (en) * 2007-12-10 2009-06-18 Basf Se Dye formulation and process for the treatment of fiber materials
CN102015989B (zh) * 2008-05-02 2012-07-04 荷兰联合利华有限公司 减少污斑的颗粒
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WO2007006357A1 (en) 2007-01-18

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