WO2010022775A1 - Multi-coloured cleaning article - Google Patents
Multi-coloured cleaning article Download PDFInfo
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- WO2010022775A1 WO2010022775A1 PCT/EP2008/061262 EP2008061262W WO2010022775A1 WO 2010022775 A1 WO2010022775 A1 WO 2010022775A1 EP 2008061262 W EP2008061262 W EP 2008061262W WO 2010022775 A1 WO2010022775 A1 WO 2010022775A1
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- soap
- coloured
- water
- acid
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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
- C11D9/00—Compositions of detergents based essentially on soap
- C11D9/04—Compositions of detergents based essentially on soap containing compounding ingredients other than soaps
- C11D9/44—Perfumes; Colouring materials; Brightening agents ; Bleaching agents
- C11D9/444—Dyes; Pigments
-
- 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
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/0047—Detergents in the form of bars or tablets
-
- 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 the field of multi-coloured cleaning articles, particularly soaps and extrudable non-soap cleaning articles, and methods for production of such multi-coloured cleaning articles.
- the present invention is also applicable to extrudable articles such as laundry bars (also known as non-soap detergent bars).
- Multi-coloured soaps and extrudable cleaning articles have been described by various terms including variageted, marbled, striated and striped.
- Multi-coloured soaps within the ambit of the invention comprise a soap base and one or more coloured regions, achieving the appearance of spacial colour variation.
- the soap base can be opaque or translucent, and may or may not be coloured itself.
- the multi-coloured soap can be easily manufactured using inexpensive materials.
- the manufacturing process should allow production of a multi-coloured soap with distinctive contras between different colours, particularly at the bar surface.
- the addition of colour should not interfere with processes of forming the soap, e.g. pressing an extruded bar of soap to achieve a pre-defined texture or three-dimensional picture.
- colouration of soap should not result in multi-coloured soaps tending to colour migration ("bleeding"), cracking for fissuring during storage or use.
- the cleaning article is preferably a soap, such that the base mass is a soap mass, or generally a extrudable cleaning article and preferably a non-soap detergent article, such that the base mass is a non-soap detergent mass.
- the invention is hereinafter described mainly for soaps, but is equally applicable to general extrudable cleaning articles and particularly to non-soap detergent articles such as, for example, non-soap cleaning bars, by substituting references to the soap or base mass by the respective extrudable base mass, e.g. a non-soap extrudable base mass.
- the coloured particles according to the invention can be introduced to the soap mass at an initial mixing stage, after the milling process, prior to extrusion in a refining plodder and combinations thereof.
- the temperatures of plodding and extrusion can vary and may be chosen appropriately in view of the melting point of the coloured particles.
- the materials for forming the coloured particles may be chosen appropriately to conform to the extrusion and/or plodding temperatures. Since the coloured particles according to the invention can release their dye through conventional plodding and extrusion processes, no specialized equipment such as dye-injection modules, co-plodding soap appa- ratuses etc. are required.
- the multi-coloured soaps according to the present invention can be produced in conventional double-barrel soap plodders as well as in single barrel soap plodders without vacuum chambers.
- the invention thus allows to produce multi-coloured soaps without a high capital investment into specialized equipment.
- the coloured particle according to the present invention preferably has a melting temperature, measured for the component with the highest melting temperature, of at least 45 0 C, preferably at least 55 0 C and most preferably at least 6O 0 C.
- the upper limit for the melting temperature is preferably 7O 0 C.
- the cleaning article is preferably formed using an extrusion or plodding step during which the base mass with added particle(s) is extruded or plodded at a temperature of at least 5 0 C lower than the melting temperature of the coloured particle(s).
- the extrusion and/or plodding temperature is preferably at least 5 0 C below the lowest melting temperature of a particle "bleeding" of which is to be reduced or avoided.
- the plodding or extrusion temperature generally is in the range of 30 to 6O 0 C, commonly in the range of 40 to 6O 0 C, preferably 45 to 5O 0 C.
- the water-soluble component of a coloured particle preferably is or comprises a polyethylene glycol with an average molecular weight range of at least 1800, preferably at least 4000 and most preferably 5000 to 9000 g/mol, or a mixture of two or more such polyethylene glycols.
- the water-soluble component preferably is a mixture of two or more of such polyethylene glycols, such that the melting temperature of the highest melting poylethylene glycol is between 45 0 C and 65 0 C. Therefore, the water soluble component preferably comprises a polyethylene glycol with an average molecular weight of at most 9000 g/mol.
- polyethylene glycols with average molecular weights lower than 1800 g/mol tend to allow a fast release of the dye during forming of the soap - which is according to the invention generally done by plodding -, resulting in a nearly uniformly coloured soap if given enough time to release the dye. It is therefore preferred that the water-soluble component does not comprise a polyethylene glycol with an average molecular weight of less than 1800 g/mol.
- Such high molecular weight polyethylene glycols have melting temperatures from 4O 0 C to 65 0 C.
- the polyethylene glycols with higher molecular mass such as at least 4000 to 9000 or even 5000 to 9000 are particularly preferred. This allows to use in the process of the present invention coloured particles with melting temperatures above the extrusion and/or plodding temperatures of the soap forming step.
- Polyethylene glycols preferably solid at room temperature (2O 0 C) with a weight average molecular weight (MW) of 1500 and above, can be obtained from BASF (Pluriol®), Clariant (Polyglykol®), Dow (CarbowaxTM) and various other suppliers.
- Preferred Polyethylene Glycols for use according to the invention are selected from the following (e.g. Polyglykol ® from Clariant and Pluriol ® E from BASF)
- Viscosity measured using an Ubbelohde viscosity meter according to DIN 51562 [mm 2 /s]
- the water-insoluble component of the coloured particle preferably is or comprises a fatty alcohol, a fatty acid or a fatty acid ester, each with a carbon chain length of at least 12, preferably 12 to 18, or mixtures thereof.
- fatty substances particularly allows to harness their super fatting properties as are known in the field of soap manufacturing.
- Use of substances with a carbon chain length of more than 18 may introduce some grittiness into the soaps during washing and be perceived as rough to the skin.
- the water-insoluble component comprises a mixture of two or more of such fatty acids, and most preferably is or comprises a mixture of C16+C18 fatty acids.
- glycol stearate and fatty alcohols with 12 to 18 carbon atoms in the carbon chain such as cetyl, cetearyl or stearyl alcohol.
- C12-C18 fatty acids are saturated, i.e. "hardened", and can be obtained by hydrogenation of unsaturated C12-C18 fatty acids.
- Most preferred fatty acids are selected from myristic, palmitic and stearic acids.
- Corresponding fatty alcohol and fatty acid esters, particularly ethylene glycol ester, are likewise preferred. Also, mixtures of two or more of the respective fatty acids, fatty alcohols and fatty acid esters are preferred.
- Both water-soluble and water-insoluble (i.e. oil-soluble) dyes can be used in the coloured particle according to the present invention.
- Particularly preferred dyes are: Dyes suitable for use in the coloured particle of the present invention can preferably be selected from the Symrise Dragocolor product range
- Particularly suitable dyes are water-soluble or water dispersible dyes which include Hansa Yellow G (C.I. 11680), Red (C.I. 12490), Orange Il (C.I. 15510), Pyranine (C.I. 59040), Acid Green (C.I. 61570), Blue (C.I. 61585) and combinations thereof.
- Particularly suitable pigments are derma- tologically acceptable metal oxides, e.g. titanium dioxide.
- Suitable grades would be for use in personal care products and include FD&C grades such as FD&C Blue No.1 and FD&C Yellow 10.
- Water-soluble dyes including water-dispersible dyes for personal care can be selected from Clariant under the Sandolin and Viscofil range, Ciba under the Puricolor and Vibra- color range etc. Oil-soluble dyes are also available from Clariant & Ciba. Both water- soluble dyes and oil-soluble dyes are also available from Symrise.
- the soap mass preferably comprises one or more metal C8-C24 fatty acid soap(s), preferably one or more alkali fatty acid soap(s), and most preferably one or more sodium fatty acid soap(s), said fatty acid soap(s) preferably having a carbon chain length of 8 to 18 carbon atoms.
- Soap masses preferred herein are generally based upon mixtures of fatty acids obtained from various natural sources.
- Commercial soaps preferred herein are generally based upon mixtures of fatty acids obtained from various natural sources.
- coconut oil for example, is a material, which has found considerable use in high-quality soap compositions. Similarly, tallow is a useful source of high-quality soaps.
- Suitable sources include palm kernel oil and babassu kernel oil, olive oil and synthetic fatty acids simulating, for example, tallow.
- Particularly useful herein are the sodium or potassium salts of the mixtures of fatty acids derived from coconut oil, palm oil, palm kernel oil and tallow, e.g. sodium or potassium tallow and coconut soap. These soaps and soap mixtures are preferred from the standpoint of ready availability and ease of processing, and in view of their desirably optimum physical and performance characteristics.
- Suitable commercially available fatty acids soaps are available from Uniqema and include Prisavon 9220 (Soap from Palm/Palm Kernel fatty acids), Prisavon 9240 (Soap from Palm/Coconut fatty acids), and Prisavon 9250 (Soap from Tallow/Coconut fatty acids).
- the soap and/or the coloured particle comprise one or more further ingredients. All ingredients that are not either soap mass (i.e. metal fatty acids), water-soluble and water-insoluble material and dye of the coloured particle, are considered further ingredients.
- water may be a further ingredient of a soap mass according to the present invention, up to a concentration of 10 wt% of the soap mass.
- the base mass preferably comprises one or more non- soap detergent ingredients selected from the group consisting of surfactants, builders and commonly used auxiliary ingredients for non-soap detergent bars:
- anionic and nonionic surfactants are preferred.
- anionic surfactants commonly linear alkylbenzene sulfonic acid can be neutralized in-situ with sodium carbo- nate. Alternatively, the neutralized form, sodium linear alkylbenzene sulfonate can be used.
- Preferred anionic surfactants are sodium linear alkylbenzene sulfonate and sodium coco-sulfate.
- Preferred nonionic surfactants as co-surfactants can be selected from alkoxylates, for example Lutensol, and ethoxylates, for example Neodol.
- sodium lauryl sulfate is a preferred surfactant.
- Builders aid at the detergency of a system. Preferred builders according to the invention are selected from sodium carbonates, sodium tripolyphosphates, zeolites, bentonites, layered silicates and chelating agents, particularly edta and tetrasodium etidronate
- bleaches preferably sodium perborate, sodium hypochlorite,
- bleach activators preferably taed
- enzymes preferably lipolases, proteinases and cellulases
- optical brighteners or fluorescent whitening agents fwa
- stilbenes and pyrazolines for example Tinopal cbs-x (Ciba).
- soil-suspending or anti-redeposition agents preferably sodium carboxymethylcellu- lose, polyacrylates, soil-releasing polymers, for example Srp-4(Rhodia)
- anti-dye transfer agents preferably polyvinylpyrrolidones, polyvinylimidazoles, for example any of the Sokalan series (Basf)
- foam regulators preferably fatty amides, non-ionics, silicones
- fillers preferably sodium sulfate, aluminium sulfate, calcium carbonate, kaolin
- x) dyes preferably phthalocyanine blue
- the fragrance compounds or perfumes for use in this invention may be any fragrance compounds or perfumes known to the art, in particular those described in S. Arctander, Perfume and Flavor Chemicals, private publishing house, Montclair, N.J., 1969 and Surburg, Panten, Common Fragrance and Flavor Materials, 5th Edition, Wiley-VCH, Weinheim 2006, preferably those explicitly mentioned in US 2008/0070825. It is a charac- teristic of this invention that an unusually broad range of fragrance compounds or perfumes may be used.
- Examples include digeranyl succinate, dineryl succinate, geranyl neryl succinate, geranyl phenylacetate, neryl phenylacetate, geranyl laurate, neryl lau- rate, di(citronellyl) maleate, dinonanyl maleate, diphenoxyethyl maleate, di(3,7-dimethyl- 1-octanyl) succinate, di(cyclohexylethyl) maleate, di(phenylethyl) adipate, 7-acetyl- 1 ,2,3,4,5,6,7,8-octahydro-1 ,1 ,6,7-tetramethyl naphthalene, ionone methyl, ionone gamma methyl, methyl cedrylone, methyl dihydrojasmonate, methyl 1 ,6,10-trimethyl-2,5,9- cyclododecatrien-1-yl ketone, 7-ace
- the fragrance compounds or perfumes are generally present in a total amount of 0.05 to 5 wt.%, preferably of 0.1 to 2.5 wt.%, and particularly preferentially of 0.2 to 1.5 wt.%, based on the total weight of the soap.
- the fragrance compounds or perfumes can be added in liquid form, undiluted or diluted with a solvent.
- Suitable solvents for this purpose are, for example, ethanol, isopropanol, diethylene glycol monoethyl ether, glycerol (glycerine), propylene glycol, 1 ,2-butylene glycol, dipropylene glycol, diethyl phthalate, triethyl citrate, isopropyl myristate, etc.
- the fragrance compounds or perfumes according to the invention can be adsorbed on a carrier which serves both for fine dispersion of the fragrance compounds or perfumes in the product and also for controlled release during use.
- a carrier which serves both for fine dispersion of the fragrance compounds or perfumes in the product and also for controlled release during use.
- Such carriers can be porous inorganic materials, such as light sulphate, silica gels, zeolites, gypsums, clays, clay granules, etc. or organic materials such as woods and cellulose-based substances.
- the soap and coloured particles according to the invention can contain plant parts and plant extracts. Examples which may be mentioned are arnica, aloe, usnea, stinging nettle, ginseng, henna, camomile, marigold, rosemary, sage, horsetail or thyme.
- the soap mass and coloured particles the present invention can contain UV-absorbers (UV-filters), such as, for example, Neo Heliopane® (Symrise) to protect against discoloration of the soap or protect against solar irradiation on the skin.
- UV-absorbers can be UV-A and/or UV-B-absorbers.
- Suitable UV-absorbers are, for example, organic UV-absorbers from the class of A- aminobenzoic acid and derivatives, salicylic acid derivatives, benzophenone derivatives, dibenzoylmethane derivatives, diphenyl acrylates, 3-imidazol-4-yl-acrylic acid and esters thereof, benzofuran derivatives, benzylidene malonate derivatives, polymeric UV- absorbers, containing one or more silicoorganic radicals, cinnamic acid derivatives, camphor derivatives, trianilino-s-triazine derivatives, 2-hydroxyphenylbenzotriazole derivatives, 2-phenylbenzimidazole-5-sulphonic acid and salts thereof, methyl anthranilate, benzotriazole derivatives.
- organic UV-absorbers from the class of A- aminobenzoic acid and derivatives, salicylic acid derivatives, benzophenone derivatives, dibenzoylmethane derivatives,
- Preferred UV-absorbers are: 4-aminobenzoic acid, 2-ethylhexyl A- dimethylaminobenzoate, 4-aminobenzoic acid ethyl ester, homomenthyl salicylat, , 2- ethylhexyl salicylate, 5-methyl-2-(1-methylethyl)cyclohexyl 2-aminobenzoate, ethylhexyl
- the total amount of UV-absorbers if at all present, preferably is in the range of 0.1 to 6 wt.%, based on the total weight of the coloured particle or soap mass, respectively.
- particulate UV-filters or inorganic pigments which optionally can be rendered hydrophobic, such as the oxides of titanium (TiO 2 ), zinc (ZnO), iron (Fe 2 O 3 ), zirconium (ZrO 2 ), silicon (SiO 2 ), manganese (e.g. MnO), aluminium (AI 2 O 3 ), cerium (e.g. Ce 2 O 3 ) and/or mixtures thereof.
- cooling agents are also advanta- geous.
- suitable cooling agents are: 1-menthol, menthone-glycerol acetal, menthyl lactate, substituted menthyl-3-carboxamides (e.g.
- menthyl-3-carboxylic acid N- ethylamide
- 2-isopropyl-N,2,3-trimethylbutanamide substituted cyclohexanecarbox- amides
- 3-menthoxypropane-1 ,2-diol 2-hydroxyethyl menthylcarbonate, 2-hydroxypropyl menthylcarbonate, N-acetylglycine menthyl ester, menthyl hydroxycarboxylates (e.g. menthyl 3-hydroxybutyrate), monomenthyl succinate, 2-mercaptocyclodecanone, men- thyl-2-pyrrolidin-5-one carboxylate.
- the soap mass and coloured particle according to the invention can contain antimicrobi- ally active ingredients or preservatives. These can be quaternary monoammonium salts, such as cocoalkylbenzyldimethylammonium chloride,
- (C-i 2 -C 14 )alkylbenzyldimethylammonium chloride 1-(3-chloroallyl)-3,5,7-triaza-1- azoniaadamantane chloride (Dowicil®), cocoalkyldichlorobenzyldimethylammonium chloride, tetradecylbenzyldimethylammonium chloride, didecyldimethylammonium chlo- ride, dioctyldimethylammonium chloride, myristyltrimethylammonium bromide, cetyl- trimethylammonium bromide, monoquaternary heterocyclic amine salts, such as, for example, laurylpyridinium chloride cetylpyridinium chloride, (C-i 2 -C 14 )alkyl- benzylimidazolium chloride, triphenylphosphonium salts, such as, for example, myristyl- triphenylphosphonium
- methylpara- ben ethylparaben, propylparaben and butylparaben
- phenoxyethanol ethylparaben, propylparaben and butylparaben
- sorbitol dibro- modicyanobutane
- imidazolidinylureas e.g. benzoic acid, sorbic acid, salicylic acid
- esters thereof glycols, e.g.
- propylene glycol 1 ,2-di- hydroxyalkanes
- ethoxylated propoxylated or mixed ethoxylated/propoxylated fatty alcohols
- fatty acids and fatty acid esters of chain lengths C 8 to C 22 with 1 to 250 ethylene glycol ether (EO) and/or propylene glycol ether (PO) units and combinations thereof.
- EO ethylene glycol ether
- PO propylene glycol ether
- soap mass and coloured particle it is also possi- ble to use so-called "natural" antibacterial active compounds; these are mostly essential oils.
- Typical assential oils having an antibacterial action are, for example, oils obtained from aniseed, lemon, orange, rosemary, wintergreen, thyme, lavender, hops, citronella, wheat, lemongrass, cedarwood, cinnamon, geranium, sandalwood, violet, eucalyptus, peppermint, gum benzoin, basil, fennel, menthol and Ocmea origanum, Hydastis car- radensis, Berberidaceae, Ratanhiae or Curcuma longa.
- Important antimicrobially active substances that can be found in essential oils and can be integrated according to the present invention are, for example, anethole, catechol, cam- phene, carvacrol, eugenol, eucalyptol, ferulic acid, farnesol, hinokitiol (sic), tropolone, limonene, menthol, methyl salicylate, thymol, terpineol, verbenone, berberine, curcumin, caryophyllene oxide, nerolidol and geraniol.
- anethole catechol, cam- phene, carvacrol, eugenol, eucalyptol, ferulic acid, farnesol, hinokitiol (sic), tropolone, limonene, menthol, methyl salicylate, thymol, terpineol, verbenone, berberine, curcumin, caryophyllene
- the soap mass and coloured particle according to the present invention can contain insect repellents, i.e. compounds active against insects (“repellents”): repellents are agents which are intended to prevent insects coming into contact with the skin and becoming active thereon. They drive away the insects and evaporate slowly. The most frequently used repellent is diethyl toluamide (DEET).
- repellents are agents which are intended to prevent insects coming into contact with the skin and becoming active thereon. They drive away the insects and evaporate slowly.
- the most frequently used repellent is diethyl toluamide (DEET).
- Natural repellents such as aniseed oil, bergamot oil, cedarwood oil, citronella oil, citrus peel oils, eucalyptus oil, spruce needle oil, lavandin oil, lavender oil, Leptospermum petersonii oil, bay leaf oil, massoi oil, Mentha arvensis oil, nutmeg oil, clove leaf oil, clove flower oil, neroli oil, origanum oil, peppermint oil, pennyroyal oil, spike lavender oil, tagetes oil, tea tree oil, thyme oil, vetiver oil, cinnamon leaf oil and cinnamon bark oil or mixtures thereof; fragrances such as ⁇ -decalactone, ⁇ -decalactone, ⁇ -dodecalactone, ⁇ - dodecalactone, (E,Z)-2,6-nonadienal, ⁇ -nonalactone, ⁇ -nonalactone, ⁇ -octalactone, ⁇ - octalactone, ⁇ -phellandren
- the soap mass and coloured particle according to the present invention can contain deodorants and/or antiperspirants, i.e. active compounds or compounds mixtures having a deodorant and/or antiperspirant action.
- deodorants based on aluminium, zirconium or zinc salts
- deodorants bactericides or bacteriostatic deodorising substances, such as, for example, triclosan, hexachlorophene, triclocarban
- astringents - predominantly aluminium salts such as aluminium hydroxychloride (aluminium chlorohydrate).
- aluminium hydroxychloride aluminium chlorohydrate
- the soap mass and coloured particle according to the present invention can contain antioxidants suitable or customary for cosmetic and/or dermatological applications.
- the antioxidants are advantageously chosen from the group consisting of amino acids (e.g. glycine, histidine, tyrosine, tryptophan) and derivatives thereof, imidazoles (e.g. urocanic acid) and derivatives thereof, peptides, such as D,L-carnosine, D-carnosine, L- carnosine and derivatives thereof (e.g. anserine), carotenoids, carotenes (e.g. ⁇ - carotene, ⁇ -carotene, lycopene) and derivatives thereof, lipoic acid and derivatives thereof (e.g.
- amino acids e.g. glycine, histidine, tyrosine, tryptophan
- imidazoles e.g. urocanic acid
- peptides such as D,L-carnosine, D-carnosine, L- carnosine and derivatives thereof (e.g. anserine)
- carotenoids e.
- thiols e.g. thioredoxin, glutathione, cysteine, cystine, cystamine and the glycosyl, N-acetyl, methyl, ethyl, propyl, amyl, butyl and lauryl, palmitoyl, oleyl, ⁇ -linoleyl, cholesteryl, glyceryl and oligoglyceryl esters thereof
- salts thereof dilauryl thiodipropionate, distearyl thio- dipropionate, thiodipropionic acid and derivatives thereof (esters, ethers, peptides, lipids, nucleotides, nucleosides and salts), and sulphoximine compounds (e.g.
- buthionine sulphoximines in very low tolerated doses (e.g. pmol to ⁇ mol/kg), also (metal) chelating agents (e.g. ⁇ -hydroxy fatty acids, phytic acid, lactoferrin, ⁇ -hydroxy acids (e.g.
- citric acid lactic acid, malic acid
- humic acid bile acid, bile extracts, tannins, bilirubin, biliverdin, EDTA, EGTA and derivatives thereof
- folic acid and derivatives thereof ubiquinone and ubiquinol and derivatives thereof
- vitamin C and derivatives e.g. ascorbyl palmitate, Mg ascorbyl phosphate, ascorbyl acetate
- tocopherols and derivatives e.g.
- vitamin E acetate
- vitamin A and derivatives vitamin A palmitate
- coniferyl benzoate of benzoin resin rutinic acid and derivatives thereof, ferulic acid and derivatives thereof, caffeic acid and derivatives thereof, sinapic acid and derivatives thereof, curcuminoids and derivatives thereof, retinoids, ursolic acid, levulinic acid, butyl- hydroxytoluene, butyl hydroxyanisole, nordihydroguaiacic acid, nordihydroguaiaretic acid, trihydroxybutyrophenone, uric acid and derivatives thereof, mannose and derivatives thereof, zinc and derivatives thereof, (e.g.
- ZnO, ZnSO 4 selenium and derivatives thereof (e.g. selenomethionine), stilbenes and derivatives thereof (e.g. stilbene oxide, trans- stilbene oxide), and the derivatives (salts, esters, ethers, sugars, nucleotides, nucleo- sides, peptides and lipids) of said active compounds.
- Natural extracts e.g. from green tea, algae, grape seeds, wheatgerms, rosemary, flavonoids, quercetin, phenolic ben- zylamines.
- Coenzymes such as, for example, coenzyme Q10, plastoquinone, menaquinone, ubiquinols 1-10, ubiquinones 1-10 or derivatives of these substances are also suitable.
- the soap mass and coloured particle according to the present invention can contain moisture regulators.
- moisture regulators are, for example, the following substances: sodium lactate, urea, alcohols, sorbitol, glycerol, propylene glycol, 1 ,2-pentane deiol, collagen, elastin or hyaluronic acid, diacyl adipates, petrolatum, ectoin, urocanic acid, lecithin, pantheol, phytantriol, lycopene, algae extract, ceramides, cholesterol, glycolipids, chitosan, chondroitin sulphate, polyamino acids and sugars, lanolin, lanolin esters, amino acids, alpha-hydroxy acids (e.g.
- citric acid lactic acid, malic acid
- sugars e.g. inositol
- alpha-hydroxy fatty acids e.g. 1,3-bis(trimethyl)
- phytosterols e.g. 1,3-bis(trimethyl)
- triterpene acids such as betulinic acid or ursolic acid
- algae extracts
- the mixtures soap mass and coloured particle according to the present invention can contain skin-lightening substances, such as, for example, 2,7-dinitroindazole, thiocitrul- line, lactoferrin, humic acid, bile acid, bile extracts, bilirubin, biliverdin, arbutin, kojic acid, hydroquinone, resorcinol, flavonoids, retinoids, soya milk, serine protease inhibitors or lipoic acid.
- skin-lightening substances such as, for example, 2,7-dinitroindazole, thiocitrul- line, lactoferrin, humic acid, bile acid, bile extracts, bilirubin, biliverdin, arbutin, kojic acid, hydroquinone, resorcinol, flavonoids, retinoids, soya milk, serine protease inhibitors or lipoic acid.
- the soap mass and coloured particle according to the present invention can also contain skin-regenerating complexes (skin repair complexes), which are obtainable, for example, from inactivated and disintegrated cultures of bacteria of the Bifidus group.
- skin repair complexes skin repair complexes
- the soap mass and coloured particle according to the present invention can also contain self-tanning agents, such as dihydroxyacetone, glyceraldehyde, indole and derivatives thereof.
- the soap mass and coloured particle according to the present invention can contain hair- smoothing agents.
- Hair-smoothing agent as understood herein are substances which lead to the human or animal hair being smoothed. Suitable hair-smoothing agents are, for example, ammonium hydroxide, ammonium thioglycolate, calcium hydroxide and sodium hydroxide.
- Suitable depilatory agents are, for example, barium sulphide, magnesium thioglycolate, strontium sulphide, calcium sulphide, thiopropionic acid, strontium thioglycolate, calcium thioglycolate, potassium sulphide, thioglycerol, ethanolamine thioglycolate, potassium thioglycolate, thioglycolic acid, lithium sulphide, sodium sulphide, thiolactic acid, magnesium sulphide, ammonium thioglycolate and sodium thioglycolate.
- the soap mass and coloured particle according to the present invention can also contain antidandruff active compounds, such as, for example, climbazole, ketoconazole or zinc pyrithione.
- the soap mass and coloured particle according to the present invention can also contain active compounds selected from the following group, oily or oil-soluble active compounds being preferred: acetylsalicylic acid, atropine, azulene, hydrocortisone and derivatives thereof, e.g. hydrocortisone 17-valerate, vitamins, e.g.
- vitamin-based extracts active compound composi- tions primarily with vitamin A, C, E, B 1 , B 12 , folic acid and biotin, amino acids and ferments, and compounds of the trace elements magnesium, silicon, phosphorus, calcium, manganese, iron or copper.
- Vitamins such as, for example, vitamins A and E, can be incorporated to vitalise the skin.
- the soap mass according to the present invention can also comprise colorants, particu- larly dyes like those used in the coloured particle.
- Colorants suitable for use in the present invention can preferably be selected from the Symrise Dragocolor product range (www.symrise.com/en/fragrances/pdf/dictionary_of_colors.pdf).
- Particularly suitable colorants are water-soluble or water dispersible dyes which include Hansa Yellow G (C.I. 11680), Red (C.I. 12490), Orange Il (C.I. 15510), Pyranine (C.I. 59040), Acid Green (C.I. 61570), Blue (C.I. 61585) and combinations thereof.
- Particularly suitable pigments are dermatologically acceptable metal oxides, e.g. titanium dioxide.
- the soap mass and coloured particle according to the present invention may also comprise electrolytes, minerals or salts such as sodium chloride (typically up to 0.5 wt.%) and chelating agents such as EDTA or citric acid.
- the soap mass and coloured particle according to the present invention may also com- prise agents for adjusting a pH value or the ionic strength.
- examples which may be mentioned are phosphoric acid and salts thereof, sodium acetate, acetic acid, citric acid and salts thereof, EDTA, disodium EDTA and tetrasodium EDTA.
- vegetable waxes and oils such as, for example, cocoa butter, almond oil, avocado oil or jojoba oil for improving the feel of the skin.
- Soap mass and coloured particle according to the present invention may comprise abrasives customary in cosmetic and dermatological preparations.
- Natural or synthetic minerals which can have an abrading or abrasive action are, for example, dolomite, calcium carbonate, aragonite, feldspars, aluminium oxide, silicon dioxide, quartz, quarzite, gyp- sum, pumice, calcite, limestone, lime, artificial marble, marble, zirconium oxide, titanium dioxide, talc, sand, quartz sand, zirconium silicate, bentonites, precipitated chalk, magnesium carbonate, almond, peach and apricot kernel flour, wheatgerm flour, rice cornflour, olive kernel flour and walnut kernel flour.
- Pumice, calcite, limestone, lime, chalk, artificial or natural marble are particularly suitable.
- the hardness of the abrasive is preferably in the range from 1 to 4 on the Mohs' scale.
- the particle size is advantageously in the range 1 to 70, preferably in the range 1 to 60 and particularly preferentially in the range 1 to 50 micrometres.
- the total amount of abrasives (one or more) is preferably 0.5 to 10 wt.%, based on the total weight of the soap.
- Soap mass and coloured particle according to the present invention may comprise skin conditioners, emollients, moisturizers, preservatives which are preferably selected form the group consisting of Dragoxat EH (Ethylhexyl Ethylhexanoate), Dragoderm (Glycerin,
- the listed ingredients can be obtained from Sym- rise.
- the present invention can also be used on transparent/translucent extruded soap bases.
- Suitable commercially available transparent/translucent extruded fatty acid soaps are available from Uniqema and include Prisavon 1983 (Sodium Tallowate, Sodium Palm Kernelate, Water, Glycerin, Sorbitol, Tallow Acid, Palm Kernel Acid, Tetrasodium EDTA, Tetrasodium Etidronate) and Prisavon 1984 (Sodium Palmate, Sodium Palm Kernelate, Water, Glycerin, Sorbitol, Palm Acid, Palm Kenel Acid, Tetrasodium EDTA, Tetrasodium Etidronate).
- Transparent/translucent extruded fatty acid soaps are also available from other regional soap manufacturers such as PT. Megasuryamas (Indonesia).
- Transparent/translucent soap can also be converted from opaque soap of vegetable or tallow origin.
- the process of converting opaque soap to transparent/translucent soap is well-documented in literature and involves extensive shearing of the soap base with adequate amounts of soap crystal retardant materials such as glycerine, sorbitol, polyethylene glycol, propylene glycol, alcohol etc.
- the present invention is also applicable to combi-bars extruded from conventional soap plodders.
- Combi-bars are hereby defined as a mixture of soap and surfactants. Combi- bars produced on conventional sigma mixers and soap plodders are carefully formulated to address the stickiness of the mixture due to the presence of surfactants that would otherwise pose problems in production. It is common to use dry, absorbent materials such as talc, kaolin, starch etc to address the stickiness in high-surfactants combi-bars. Alternatively, the combi-bar can have a higher soap to surfactant ratio for reasonable processing in conventional equipment.
- the coloured particle according to the present invention comprises:
- the soap according to the present invention comprises a total of 0,1 to 5 wt% of the coloured particles, preferably 0,5 to 2 wt%, based on the total of the soap.
- mixture can be crushed in a blender or suitable device to form solid particles
- Formulation 2 produced soaps with areas of varying contrast in colours. There are areas of intense yellow colour from the coloured particles against the blue colour of the soap.
- Formulation 3 produced soaps with areas of varying contrast in colours. There are areas of intense yellow colour from the coloured particles against the blue colour of the soap.
- Coloured particles B & C have polyethylene glycols with much higher melting points than Coloured particle A.
- Formulations 6 and 7 used an oil-soluble colour dye as opposed to the water-soluble colour dye used in formulations 4 and 5.
- the soaps showed varying contrast in colours with areas of intense colour from the coloured particles against surrounding lighter colour tones.
- the soaps made according to formulation 7 retain much of the whiteness of the base soap indicating a lower degree of release for the colour dye from the coloured particle. This showed that the higher melting point of Polyethylene Glycol M. W. 9000 as against Polyethylene Glycol M. W. 6000 does exert an effect on the rate of release for the colour dye from the coloured particle.
- the coloured particles can be used in a translucent soap base converted from an opaque soap base in a streamlined, procedural operation.
- a common method, well-documented in literature, is to shear the opaque base with a blend of known soap crystal retardants in adequate quantities with sufficient heat till translucency is obtained in the soap mass.
- an opaque soap base (Prisavon 9220 from Uniqema) with a blend of known soap crystal retardants and stearic acid is sheared in a jacketed sigma mixer with constant heat at 6O 0 C - 7O 0 C till translucency is obtained in the soap mass.
- the shearing process is preferably conducted in a double-bladed sigma mixer with a counter- directional shearing action.
- the perfume is added into the blend of soap crystal retardants to take advantage of the mixing and shearing process.
- the coloured particles are introduced into the soap base at the initial mixing stage and processed under similar conditions. Both sets of soaps showed areas of contrasting intensity of colours. However, example 12 produced soaps whose primary base colour has taken on a slightly stronger bluish tone than soaps produced from example 11. The additional dye released from the coloured particles as a result of an increase in dosage showed that the colour effects in the soaps can also be manipulated by the amount of coloured particles used.
- example 13 the same formulation as example 11 is used. However, the coloured particles are introduced into the soap mass at a later stage prior to extrusion.
- the soaps produced by example 13 showed a whiter primary base colour with a stronger contrast against areas of intense colours in comparison with soaps produced by example 11. This example showed that manipulation in the stages for which the coloured particles are introduced into the soap mass can also influence the development of the coloured effects in the soap.
- Figure 1 shows a corresponding soap.
- Ethanol and water can be added to the base to enhance the translucency of the soap.
- the soap samples showed areas of contrasting intensity of colours. This example showed that manipulation in the stages for which the coloured particles are introduced into the soap mass can also influence the development of the coloured effects in the soap.
- Example 16 & 17 produced soaps with a lesser number of areas with high intense colours.
- the soaps of Example 16 have a more gradual contrast of colour against the white background of the primary soap base.
- the soaps of Example 17 have a more homogenous distribution of colour giving the soap a bluish shade against lesser white areas of the primary soap base.
- the choice of solid fatty acids in the composition of the coloured particles can exert an influence on the distribution and release of the dye from the particles giving varied coloured effects on the surface of the soap.
- mica is incorporated into the coloured particles for an added effect to the soaps.
- the coloured effects are evident in both opaque and translucent soap.
- the extruded detergent bar as depicted in figure 2, showed streaks of blue dye across the white primary base with areas of high-intense colours and soft tones.
- the example demonstrated that the present invention is also applicable to the manufacture of detergent bar.
- Example 21 The colour effects in soap are replicated in an example with the fatty acids replaced with glycol stearate (ester of ethylene glycol and stearic acid) in the composition of the coloured particles.
Abstract
Description
Claims
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Cited By (15)
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WO2013006871A2 (en) | 2012-02-13 | 2013-01-10 | Milliken & Company | Laundry care compositions containing dyes |
WO2013142486A1 (en) | 2012-03-19 | 2013-09-26 | The Procter & Gamble Company | Laundry care compositions containing dyes |
EP2808372A1 (en) | 2013-05-28 | 2014-12-03 | The Procter and Gamble Company | Surface treatment compositions comprising photochromic dyes |
WO2015042087A1 (en) | 2013-09-18 | 2015-03-26 | The Procter & Gamble Company | Laundry care composition comprising carboxylate dye |
WO2015042086A1 (en) | 2013-09-18 | 2015-03-26 | The Procter & Gamble Company | Laundry care composition comprising carboxylate dye |
WO2015041887A2 (en) | 2013-09-18 | 2015-03-26 | Milliken & Company | Laundry care composition comprising carboxylate dye |
WO2015042209A1 (en) | 2013-09-18 | 2015-03-26 | The Procter & Gamble Company | Laundry care compositions containing thiophene azo carboxylate dyes |
WO2015112341A1 (en) | 2014-01-22 | 2015-07-30 | The Procter & Gamble Company | Fabric treatment composition |
WO2015112339A1 (en) | 2014-01-22 | 2015-07-30 | The Procter & Gamble Company | Fabric treatment composition |
WO2015112338A1 (en) | 2014-01-22 | 2015-07-30 | The Procter & Gamble Company | Method of treating textile fabrics |
WO2015112340A1 (en) | 2014-01-22 | 2015-07-30 | The Procter & Gamble Company | Method of treating textile fabrics |
WO2015171592A1 (en) | 2014-05-06 | 2015-11-12 | Milliken & Company | Laundry care compositions |
WO2016178668A1 (en) | 2015-05-04 | 2016-11-10 | Milliken & Company | Leuco triphenylmethane colorants as bluing agents in laundry care compositions |
WO2018033571A1 (en) * | 2016-08-17 | 2018-02-22 | Zobele Holding S.P.A. | Water soluble pellet and method for manufacturing said water soluble pellet |
WO2018084930A1 (en) | 2016-11-03 | 2018-05-11 | Milliken & Company | Leuco triphenylmethane colorants as bluing agents in laundry care compositions |
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WO2013006871A2 (en) | 2012-02-13 | 2013-01-10 | Milliken & Company | Laundry care compositions containing dyes |
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WO2015171592A1 (en) | 2014-05-06 | 2015-11-12 | Milliken & Company | Laundry care compositions |
WO2016178668A1 (en) | 2015-05-04 | 2016-11-10 | Milliken & Company | Leuco triphenylmethane colorants as bluing agents in laundry care compositions |
WO2018033571A1 (en) * | 2016-08-17 | 2018-02-22 | Zobele Holding S.P.A. | Water soluble pellet and method for manufacturing said water soluble pellet |
US11499123B2 (en) | 2016-08-17 | 2022-11-15 | Zobele Holding S.P.A. | Water soluble pellet and method for manufacturing said water soluble pellet |
WO2018084930A1 (en) | 2016-11-03 | 2018-05-11 | Milliken & Company | Leuco triphenylmethane colorants as bluing agents in laundry care compositions |
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