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
  • C11D3/40—Dyes ; Pigments
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
  • A61K8/11—Encapsulated compositions
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
  • A61K8/29—Titanium; Compounds thereof
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
  • A61K8/73—Polysaccharides
  • A61K8/731—Cellulose; Quaternized cellulose derivatives
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
  • A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
  • A61K8/8141—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
  • A61K8/8152—Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q19/00—Preparations for care of the skin
  • A61Q19/10—Washing or bathing preparations
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
  • B01J13/00—Colloid chemistry, e.g. the production of colloidal materials or their solutions, not otherwise provided for; Making microcapsules or microballoons
  • B01J13/02—Making microcapsules or microballoons
  • B01J13/04—Making microcapsules or microballoons by physical processes, e.g. drying, spraying
  • B01J13/043—Drying and spraying
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
  • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
  • C09B67/0001—Post-treatment of organic pigments or dyes
  • C09B67/0004—Coated particulate pigments or dyes
  • C09B67/0008—Coated particulate pigments or dyes with organic coatings
  • C09B67/0013—Coated particulate pigments or dyes with organic coatings with polymeric coatings
• • C—CHEMISTRY; METALLURGY
  • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
  • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
  • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
  • C09B67/0097—Dye preparations of special physical nature; Tablets, films, extrusion, microcapsules, sheets, pads, bags with dyes
• • 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
  • C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
  • C11D17/0013—Liquid compositions with insoluble particles in suspension
• • 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
  • C11D17/0008—Detergent materials or soaps characterised by their shape or physical properties aqueous liquid non soap compositions
  • C11D17/003—Colloidal solutions, e.g. gels; Thixotropic solutions or pastes
• • 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
  • C11D17/0039—Coated compositions or coated components in the compositions, (micro)capsules
• • 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
  • C11D3/2003—Alcohols; Phenols
  • C11D3/2041—Dihydric alcohols
• • 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
  • C11D3/2003—Alcohols; Phenols
  • C11D3/2065—Polyhydric alcohols
• • 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
  • C11D3/20—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
  • 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
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
  • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
  • A61K2800/41—Particular ingredients further characterized by their size
  • A61K2800/412—Microsized, i.e. having sizes between 0.1 and 100 microns
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
  • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
  • A61K2800/42—Colour properties
  • A61K2800/43—Pigments; Dyes

Definitions

• the present application relates to liquid or gel-like compositions comprising microencapsulated colorant granules.
• Dyes have been included in detergent products either to provide product aesthetics, coloring of wash water or to increase perceived cleaning of white fabrics. Furthermore attempts have been made to incorporate particles comprising a dye into cleansing compositions which change color during use in order to indicate that sufficient time has elapsed and that a sufficient treatment with the cleansing composition has been achieved.
• WO 2008/132616 discloses a composition comprising at least one thermo chromic dye, changing the color of the cleansing composition when the composition reaches a temperature of from about 21° C. to about 40° C. These color changing cleansing compositions are limited to thermo chromic dyes but do not indicate when a sufficient treatment with the cleansing compositions has been achieved.
• liquid or gel-like compositions such as cleansing products or personal care products which comprise an indicator for determining how long washing processes or applications should continue with the product in order to achieve a satisfying result. More particularly, a need currently exists for cleansing compositions that change color during use in order to indicate that a sufficient treatment with the cleansing compositions has been achieved.
• pigments which are converted to particular microencapsulated colorant granules. These pigments are suited to induce color to liquid or gel-like compositions during their application and in particular to the foam built-up during the washing process.
• the present invention relates to liquid or gel-like compositions comprising one or more microencapsulated colorant granules consisting of a core (A) and a shell (B), whereby the core (A) has a diameter of between 1 and 1000 micrometer, preferably between 10 and 500 micrometer, more preferably between 100 and 400 micrometer, even more preferably between 200 and 300 micrometer, and comprises
• the shell (B) has a thickness of between 1 to 500 micrometer, preferably between 10 and 400 micrometer, more preferably between 50 and 300 micrometer, even more preferably between 100 and 300 micrometer, and comprises
• the liquid compositions according to the present invention have a viscosity of from 1 to 10 000 mPa ⁇ s. The viscosity is measured using the inventive liquid composition as such under the following conditions:
• the gel-like compositions according to the present invention have a viscosity of from >10 000 to 200 000 mPa ⁇ s and particularly preferably of from 20 000 to 150 000 mPa ⁇ s. The viscosity is measured using the inventive gel-like composition as such under the following conditions: temperature: 20° C.; apparatus: Brookfield Viscosimeter RV; Spindle No. 7; 20 r.p.m. (rounds per minutes).
• inventive compositions are liquid. In another preferred embodiment of the invention the inventive compositions are gel-like.
• a white pigment such as titanium dioxide (C.I. Pigment White 6), barium sulfate or zinc oxide, is incorporated into the shell.
• a white pigment such as titanium dioxide (C.I. Pigment White 6), barium sulfate or zinc oxide.
• the color of the core colorant (I) is hidden and the foam is to change from white to the color of colorant (I).
• the shell contains a colorant (II) (f) which color is different from the color of colorant (I).
• colorant (II) it is expedient to apply colorant (II) as a top-coat onto the shell containing components (d) and (e). Then, the color of the foam is to change from the color of colorant (II) to the color of colorant (I).
• the color of colorant (II) is equal or at least similar to the color of the cleansing base, so that the microencapsulated colorant granules are invisible or at least hardly visible in the inventive compositions.
• the core and the shell may contain some water not exceeding an amount for sustaining granular form, e.g. 0 to 50%, preferably 1 to 30%, more preferably 5 to 20%, by weight, based on the total weight of the granules.
• the microencapsulated colorant granules contained in the inventive compositions contain
• the amount of the white pigment (e) if any, may vary between 0 and 50%, preferably between 0.1 and 30%, by weight, relating to the total weight of the microencapsulated colorant granules.
• the amount of colorant (II) (f), if any, may vary between 0 and 25%, preferably between 0.1 and 20% by weight, relating to the total weight of the microencapsulated colorant granules.
• the microencapsulated colorant granules contained in the inventive compositions contain
• the microencapsulated colorant granules contained in the inventive compositions contain
• inventive compositions may be colored or upon application may result in a coloring (in case the compositions were colorless before their application) or may result in a color change of the composition itself. A similar coloring or color change may occur with respect to the foam resulting from the application of the inventive compositions.
• the coloring or color change of the inventive compositions and/or foam occurs independently of the temperature of the inventive compositions so that there is no need to use thermo chromic dyes as colorants. Therefore, it is preferred that colorant (I) and colorant (II) are not thermo chromic.
• color pigments from the group consisting of inorganic pigments, organic pigments and effect pigments come into consideration for use as colorant (I) and (II).
• Preferred organic pigments are monoazo, disazo, laked azo, ⁇ -naphthol, Naphthol AS, benzimidazolone, disazo condensation, azo metal complex pigments and polycyclic pigments such as, for example, phthalocyanine, quinacridone, perylene, perinone, thioindigo, anthanthrone, anthraquinone, flavanthrone, indanthrone, isoviolanthrone, pyranthrone, dioxazine, quinophthalone, isoindolinone, isoindoline and diketopyrrolopyrrole pigments.
• organic pigments mentioned particularly suitable ones are in a very fine state of subdivision wherein preferably at least 95% by weight and more preferably at least 99% by weight of the pigment particles have a particle size ⁇ 500 nm.
• the pigment particles have a d 50 value between 50 and 500 nm, preferably between 70 and 350 nm.
• monoazo and disazo pigments more particularly the Colour Index pigments Pigment Yellow 1, Pigment Yellow 3, Pigment Yellow 12, Pigment Yellow 13, Pigment Yellow 14, Pigment Yellow 16, Pigment Yellow 17, Pigment Yellow 73, Pigment Yellow 74, Pigment Yellow 81, Pigment Yellow 83, Pigment Yellow 87, Pigment Yellow 97, Pigment Yellow 111, Pigment Yellow 126, Pigment Yellow 127, Pigment Yellow 128, Pigment Yellow 155, Pigment Yellow 174, Pigment Yellow 176, Pigment Yellow 191, Pigment Yellow 213, Pigment Yellow 214, Pigment Yellow 219, Pigment Red 38, Pigment Red 144, Pigment Red 214, Pigment Red 242, Pigment Red 262, Pigment Red 266, Pigment Red 269, Pigment Red 274, Pigment Orange 13, Pigment Orange 34 or Pigment Brown 41; ⁇ -naphthol and Naphthol AS pigments, more particularly the Colour Index pigments Pigment Red 2, Pigment Red 3, Pigment Red 4,
• Preferred inorganic pigments are for example titanium dioxides, zinc sulfides, zinc oxides, iron oxides, magnetites, manganese iron oxides, chromium oxides, ultramarine, nickel or chromium antimony titanium oxides, manganese titanium rutiles, cobalt oxides, mixed oxides of cobalt and of aluminum, rutile mixed phase pigments, sulfides of the rare earths, spinels of cobalt with nickel and zinc, spinels based on iron and chromium with copper zinc and also manganese, bismuth vanadates and also blend pigments, more particularly the Colour Index pigments Pigment Yellow 184, Pigment Yellow 53, Pigment Yellow 42, Pigment Yellow Brown 24, Pigment Red 101, Pigment Blue 28, Pigment Blue 36, Pigment Green 50, Pigment Green 17. Preference is also given to mixtures of inorganic pigments and also mixtures of organic pigments with inorganic pigments.
• Colorant (I) and colorant (II) can be used for example as powder pigment, as presscake, as dispersion, as solid pigment preparation or as liquid pigment formulation in the manufacture of the microencapsulated colorant granules. Preference is given to aqueous glycol-containing pigment dispersions or formulations.
• colorant (I) and colorant (II) are selected from colorants allowed for cosmetic use and from colorants allowed for detergents.
• colorant (I) and colorant (II) are selected from the group consisting of C.I. Pigment Black 7 (C.I. 77266), C.I. Pigment Blue 15 (C.I. 74160), C.I. Pigment Blue 15:1 (C.I. 74160), C.I. Pigment Blue 15:3 (C.I. 74160), C.I. Pigment Blue 15:6 (C.I. 74160), C.I. Pigment Blue 80 (C.I. 77007), C.I. Pigment Red 4 (C.I. 12085), C.I. Pigment Red 5 (C.I. 12490), C.I. Pigment Red 112 (C.I. 12370), C.I.
• Pigment Red 122 (C.I. 73915), C.I. Pigment Red 181 (C.I. 73360), C.I. Pigment Red 254 (C.I. 56110), C.I. Vat Red 1, C.I. Pigment Green 7 (C.I. 74260), C.I. Pigment Green 36 (C.I. 74265), C.I. Pigment Violet 23 (C.I. 51319), C.I. Pigment Yellow 1 (C.I. 11680), C.I. Pigment Yellow 3 (C.I. 11710) and C.I. Pigment Yellow 122 (C.I. 21090).
• Preferred polyols (c) are glycerine, glycols, polyglycols, pentaerythrite, sugar alcohols, especially mannitol, sorbitol, xylitol, maltitol, lactitol, lactose and monosaccharides, especially lactose.
• Microcrystalline cellulose (E460i) and powdered cellulose (E460ii) are commercially available as inactive fillers, thickeners or stabilizers in processed foods and pharmaceuticals. While microcrystalline cellulose is used in the core as component b), powdered cellulose can be used in the shell as component d). Instead of or in addition to powdered cellulose, cellulose derivatives can be used, such as ethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl methyl cellulose, hydroxyethyl cellulose.
• Preferred polycarboxylic acids used as component d) are polyacrylic acid, polymethacrylic acid, acrylate-methacrylate copolymers, such as methacrylic acid-ethylacrylate copolymers, poly(ethylacrylate-methylmethacrylate-hydroxyethylmethacrylate), styrene-(meth)acrylates, and maleic acid copolymers, such as acrylic acid-maleic acid copolymers.
• Preferred vinyl polymers used as component d) are polyvinyl acetates and vinyl (meth)acrylic copolymers.
• the polymer used as component d) and contained in the one or more microencapsulated colorant granules is selected from the group consisting of polyacrylic acid, polymethacrylic acid, copolymers of polyacrylic and polymethacrylic acid, styrene-(meth)acrylates, maleic acid copolymers, polyvinylacetates, vinyl acrylic copolymers, vinyl methacrylic copolymers, cellulose, ethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, hydroxypropyl methyl cellulose, hydroxyethyl methyl cellulose, and hydroxyethyl cellulose.
• the molecular weight of polymers (d) is preferably between 500 and 500 000 g/mol, more preferably between 1 000 and 300 000 g/mol.
• the inventive compositions comprise microencapsulated colorant granules as characterized before, wherein the particle size distribution of the granules is between 100 and 1500 ⁇ m, more preferred between 200 and 1000 ⁇ m, most preferred between 300 and 600 ⁇ m.
• microencapsulated colorant granules contained in the inventive compositions can preferably be prepared by a process with the following steps:
• colorant (I) in powderous form is homogenized with microcrystalline cellulose, the polyol and water in a planetary mixer until a homogeneous gel-like mass is obtained. This mass is then subjected to a screw extruder to get small noodles which are further charged into a spherodizer to get microbeads. These microbeads are treated as core. For coating, the core microbeads are subjected to a fluidized bed processing unit, wherein a solution or suspension of components (d) and optionally (e) and optionally (f) in water is sprayed onto the microbeads.
• a suspension of white pigment (e) and polymer (d) in water is sprayed onto the microbeads.
• a suspension of white pigment (e) and polymer (d) in water is sprayed onto the microbeads, followed by a second spraying operation, wherein a suspension of colorant (II) and polymer (d) in water is sprayed onto the microbeads to get a colored coating.
• the preferred processing temperature during spraying is between 20 and 80° C., especially between 30 and 60° C.
• the coated microbeads obtained are dried to obtain microencapsulated colorant granules.
• the microencapsulated colorant granules can be incorporated in colorless or colored liquid or gel-like cleansing compositions suitable for cleaning hard surfaces, washing clothes and dishes, and softening fabrics thereby producing inventive compositions. These inventive liquid or gel-like compositions can be employed for household, institutional and/or industrial applications.
• the microencapsulated colorant granules can furthermore be incorporated in colorless or colored liquid or gel-like personal cleansing compositions or personal care products thereby also producing inventive compositions.
• the shell decomposes and the fine colorant particles are released into the inventive compositions and/or disperse into the foam resulting from the inventive compositions inducing a coloring or color change of the inventive composition and/or the foam.
• compositions suitable for cleaning hard surfaces such as general or all-purpose cleaners, window cleaners, sanitary cleaners, disinfectants or vehicle cleaners, compositions suitable for washing clothes such as detergents or high density liquids (HDL), dish washing compositions such as hand dishwash compositions, compositions suitable for softening fabrics or any other suitable cleaning products.
• cleaning hard surfaces such as general or all-purpose cleaners, window cleaners, sanitary cleaners, disinfectants or vehicle cleaners
• compositions suitable for washing clothes such as detergents or high density liquids (HDL)
• dish washing compositions such as hand dishwash compositions
• compositions suitable for softening fabrics or any other suitable cleaning products such as hand dishwash compositions, compositions suitable for softening fabrics or any other suitable cleaning products.
• compositions such as personal cleansing compositions for skin, hair and teeth, e.g. shower baths, body washes, shampoos, hand soaps, facial soaps or facial cleansing compositions, baby washes or toothpastes or personal care products such as body lotions or sunscreens.
• compositions are pet detergents or washes.
• the microencapsulated colorant granules are present in the inventive compositions in an amount of from 0.1 to 10% by weight, preferably in an amount of from 0.2 to 7% by weight, more preferably in an amount of from 0.5 to 5% by weight, relative to the total weight of the inventive composition.
• compositions according to the invention may contain components which are common in the respective art, such as nonionic, anionic, cationic, and amphoteric surfactants, dispersing agents such as suspending agents, emollients, preservatives, fragrances, pH modifiers, anti-microbial agents, colorants, water, and non-aqueous solvents.
• dispersing agents such as suspending agents, emollients, preservatives, fragrances, pH modifiers, anti-microbial agents, colorants, water, and non-aqueous solvents.
• the inventive compositions comprise at least 40% by weight of water, relative to the total weight of the inventive composition.
• these inventive compositions comprise not more than 99% by weight of water, relative to the total weight of the inventive composition.
• the inventive compositions comprise of from 50 to 98% by weight and more preferably of from 55 to 97% by weight of water, relative to the total weight of the inventive composition.
• inventive compositions can vary greatly depending upon various factors.
• inventive compositions may contain surfactants in an amount of from 1 to 60% by weight and preferably of from 5 to 40% by weight, relative to the total weight of the inventive composition.
• inventive compositions may also contain various emollients.
• emollients include ethoxylated and propoxylated alcohols, such as cetyl alcohols and ethoxylated lanolin.
• inventive compositions may also include one or more non-aqueous solvents.
• non-aqueous solvents can sometimes aid in dissolving certain components, e.g. preservatives or anti-microbial agents.
• suitable non-aqueous solvents include, but are not limited to:
• glycols such as propylene glycol, butylene glycol, triethylene glycol, hexylene glycol, polyethylene glycols, ethoxydiglycol, and dipropyleneglycol
• alcohols such as ethanol, n-propanol, and isopropanol
• triglycerides such as ethanol, n-propanol, and isopropanol
• triglycerides such as ethanol, n-propanol, and isopropanol
• triglycerides such as ethanol, n-propanol, and isopropanol
• triglycerides such as ethanol, n-propanol, and isopropanol
• triglycerides such as ethanol, n-propanol, and isopropanol
• acetone such as triacetin
• Preferred solvent combinations include a glycol, particularly hexylene and/or propylene glycol,
• the inventive compositions may also contain various preservatives to increase the shelf life of the composition.
• the preservative is present in an amount of from 0.001 to 5% by weight, more preferably of from 0.001 to about 1% by weight, and even more preferably, of from 0.1 to 0.15% by weight, relative to the total weight of the inventive composition.
• pH modifiers may be utilized in the inventive compositions to achieve the desired pH level.
• some examples of basic pH modifiers that may be used in the inventive compositions include, but are not limited to ammonia, mono-, di-, and tri-alkylamines, mono-, di-, and tri-alkanolamines, alkali metal and alkaline earth metal hydroxides, alkali metal and alkaline earth metal silicates, mineral acids, carboxylic acids, and polymeric acids.
• the inventive compositions possess a pH value of from 1 to 12, preferably of from 2 to 10 and more preferably of from 2.5 to 8.5.
• inventive compositions comprise one or more dispersing agents.
• the dispersing agent may be a clay, a starch including starch derivatives, a modified cellulose, a natural gum, a wax, a fatty acid, a fatty alcohol, a multifunctional alcohol, a colloidal or a fumed particle, a fatty acid ester, a polyoxyethylene glycol ether, or a mixture thereof.
• inventive compositions comprise one or more polymers containing one or more structure units derived from acryloyldimethyltaurine and/or salts thereof (acryloyldimethyltaurates) as dispersing agent/s.
• Preferred polymers containing one or more structure units derived from acryloyldimethyltaurine and/or salts thereof are polymers containing
• Such polymers are commercially available from Clariant (e.g. Aristoflex® AVC and Aristoflex® TAC)
• inventive compositions comprise one or more polymers containing structure units derived from terephthalic acid and/or salts or esters thereof as dispersing agent/s.
• Preferred polymers containing structure units derived from terephthalic acid and/or salts or esters thereof are polymers containing
• Such polymers are commercially available from Clariant (e.g. Texcare® SRN 100, Texcare® SRN 170, Texcare® SRN 240, Texcare® SRN 300, Texcare® SRN 325 or Texcare® SRA 300).
• Clariant e.g. Texcare® SRN 100, Texcare® SRN 170, Texcare® SRN 240, Texcare® SRN 300, Texcare® SRN 325 or Texcare® SRA 300.
• the dispersing agent may be present in the inventive compositions in an amount sufficient to prevent the microencapsulated colorant granules from settling.
• the dispersing agent may be present in the inventive compositions in an amount of from 0.1 to 15% by weight, preferably of from 0.1 to 10% by weight and more preferably of from 0.5 to 3% by weight, relative to the total weight of the inventive composition.
• inventive compositions possess the advantage that they may change color upon application. Therefore, the inventive compositions preferably are color changing compositions.
• inventive compositions are personal care or cleansing compositions.
• part refers to parts by weight and percentages refer to weight percent (wt.-%) if not expressly stated otherwise.
• microbeads were subjected to a fluidized bed processing unit.
• a dispersion of 15 parts of titanium dioxide in 5 parts of water and 5 parts of sodium polyacrylate (Mowilith® DM 6400) was sprayed with the microbeads at a temperature of about 50° C. to get a TiO 2 -polyacrylate coating onto the beads.
• the final beads were removed from the fluidized bed unit and dried to give microencapsulated colorant granules of about 400 to 450 micrometer in diameter.
• microbeads were subjected to a fluidized bed processing unit. A dispersion of 15 parts of titanium dioxide in 5 parts of water and 5 parts of sodium polyacrylate (Mowilith® DM 6400) was sprayed with the microbeads at a temperature of about 50° C. to get a TiO 2 -polyacrylate coating onto the beads.
• a fluidized bed processing unit A dispersion of 15 parts of titanium dioxide in 5 parts of water and 5 parts of sodium polyacrylate (Mowilith® DM 6400) was sprayed with the microbeads at a temperature of about 50° C. to get a TiO 2 -polyacrylate coating onto the beads.
• microencapsulated colorant granules of about 400 to 450 micrometer in diameter.
• G Preservant qs H Carbopol ® (BF Goodrich) 0.5 wt-% Polyacrylate
• a Hostapur ® SAS (60 wt-%, aqueous, Clariant) 9.00 wt-% Secondary C 12-16 alkane sulfonate, Na-salt GENAPOL ® LRO liquid (30 wt-%, 10.00 wt-% aqueous, Clariant) Sodium laureth sulphate Genapol ® DU 080 (100 wt-%, Clariant) 2.00 wt-% C 11 -Oxoalkoholpolyglykolether mit 8 EO Sodiumtripolyphosphate 14.00 wt-% B Water ad 100 wt-% C Praepagen ® HY 2.00 wt-% C 12 /C 14 -Alkyl dimethyl hydroxyethyl ammonium chloride (40% a.m., aqueous) Texcare ® SRN 170 (Clariant) 2.00 wt-% Non-ionic polyester of propylene terephthalate
• a GENAPOL ® LRO liquid (30 wt-%, aqueous, 40.0 wt-% Clariant) Sodium laureth sulfate B Fragrance 0.3 wt-% C Water ad 100 wt-%
• Example A1 1.5 wt-% Preservative q.s.
• GENAGEN ® LDA (30 wt-%, aqueous, Clariant) 6.0 wt-% Disodium lauroamphodiacetate Citric acid q.s.
• D Aristoflex ® TAC (Clariant) 1.0 wt-% Ammonium Acryloyl Dimethyltaurate/ Carboxyethyl Acrylate Crosspolymer
• a OCTOPIROX ® (Clariant) 0.5 wt-% Piroctone olamine B Water 10.0 wt-% C GENAPOL ® LRO liquid (30 wt-%, 30.0 wt-% aqueous, Clariant) Sodium laureth sulfate D Belsil ® DMC 6032 (Wacker Chemie) 1.5 wt-% Dimethicone copolyol acetate Fragrance 0.3 wt-% E ALLANTOIN ® D (Clariant) 0.3 wt-% F Water ad 100 wt-% G
• Example A3 0.5 wt-% Panthenol (Hoffmann La Roche) 1.0 wt-% GENAGEN ® CAB (30 wt-%, aqueous, Clariant) 8.0 wt-% Cocamidopropylbetaine H Aristoflex ® TAC (Clariant) 1.0 wt-% Ammonium Ac
• a Texcare ® SRN 170 (Clariant) 1.0 wt-% Non-ionic polyester of propylene terephthalate Mineral oil 4.0 wt-% Almond oil 4.0 wt-% Cetiol ® SN (Henkel) 8.0 wt-% Cetearyl isononanoate
• B Aristoflex ® AVC (Clariant) 0.3 wt-% Ammonium acryloyldimethyltaurate/VP copolymer
• Example A2 1.0 wt-% Citric acid 0.3 wt-% Malic acid 0.4 wt-% Glycolic acid 0.7 wt-% Lactic acid 0.7 wt-% D Fragrances 0.3 wt-%

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