Composition

Abstract

The present invention relates to the field of laundry care, more specifically to a liquid laundry care composition, a method for obtaining the liquid laundry care composition, and the use of the liquid laundry care composition for providing enhanced fragrance perception on fabrics.

Description

[Technical field]

[0001] The present invention relates to the field of laundry care compositions, more specifically to liquid laundry care compositions, methods for obtaining liquid laundry care compositions, and the use of liquid laundry care compositions for enhancing fragrance perception on fabrics. [Background technology]

[0002] Laundry care compositions constitute a category of consumer products whose main function is to deliver fragrance at some point during application. Examples of laundry care compositions include scent boosters and fabric refreshers. These laundry care compositions are available in either solid or liquid form.

[0003] Typically, solid scent boosters are added directly to the washing machine before the start of the wash cycle. Such scent boosters are intended to provide an enhanced scent perception by the consumer throughout the wash and rinse cycles, at the moment the laundry is removed from the machine, during drying, and after the laundry is dried. Conversely, liquid scent boosters are typically added after the wash cycle is completed.

[0004] Fabric refreshers are typically sprayed onto fabrics and are intended to provide an enhanced fragrance perception by the consumer not only immediately after spraying, but also after a period of time after spraying.

[0005] Such a release profile is achieved by combining free, non-encapsulated fragrance components with encapsulated fragrance components, where the free fragrance components essentially contribute to enhancing the fragrance perception on wet fabrics, while the encapsulated components essentially contribute to enhancing the fragrance perception on dry fabrics. In addition, the encapsulated components may be released during handling of the fabric, typically under the action of mechanical forces. Core-shell type microcapsules are preferably used, where the core contains the encapsulated fragrance components and is surrounded by an impermeable, frangible shell.

[0006] Both free and encapsulated fragrance components are dispersed in the laundry care composition in solid or liquid form.

[0007] WO2018 / 073238A1 discloses a ringing gel comprising an aqueous phase, a surfactant system essentially consisting of non-ionic surfactant(s), a linker, and an oil phase containing hydrophobic active ingredients and / or microcapsules. This system does not contain ionic surfactants that would be prone to adverse interactions with consumer product formulations when included therein. Similarly, this system does not contain any cationic polymers that enhance the deposition of microcapsules.

[0008] It may therefore be desirable to provide laundry care compositions that include ingredients that enhance the deposition of microcapsules onto a substrate. Such laundry care compositions may include both free and encapsulated fragrance components that are compatible with a wide range of consumer products, particularly detergents, and more particularly laundry care detergents.

[0009] Consumers are increasingly concerned about using materials derived from non-renewable resources, such as synthetic petrochemicals, as well as the processes for manufacturing consumer products. The concept of "clean label" is one of the biggest trends of the last decade. The term itself has many definitions, including sustainable, naturally derived, and biodegradable ingredients, as well as minimal processing and environmental impact. Nevertheless, it is generally difficult to use natural or naturally derived materials to meet the requirements for suitable encapsulation compositions. Bio-based and biodegradable ingredients for consumer formulations must provide a unique combination of performance and sustainability so that consumers can be confident in the safety and effectiveness of these ingredients.

[0010] Additionally, it may be desirable to provide laundry care compositions that include renewable, especially biologically derived, ingredients. It is also desirable to provide laundry care compositions that are biodegradable. Summary of the Invention

[0011] Summary of the Invention In a first aspect, the present invention provides a method for producing a method for treating a cancer cell comprising the steps of: a) at least one unencapsulated fragrance ingredient; b) at least one core-shell microcapsule, where the at least one core-shell microcapsule comprises a core containing at least one encapsulated fragrance ingredient, and a shell surrounding the core; c) at least one surfactant; d) a suspending agent comprising at least one polysaccharide; e) optionally a cationic deposition agent; and optionally f) Electrolyte The present invention provides a liquid laundry care composition comprising:

[0012] In a further aspect, the present invention provides a method of preparing a laundry care composition as described herein. The present invention further provides the use of a laundry care composition as described herein.

[0013] definition In the context of the present invention, a "biodegradable ingredient" is an ingredient that meets the passing criteria of "inherently biodegradable" and / or "readily biodegradable" in at least one OECD biodegradability test. For the avoidance of ambiguity, this means that if an ingredient passes one test but fails one or more other tests, the passing result takes precedence over the other test results.

[0014] "Ultimate biodegradability" refers to the complete breakdown of a chemical into water, carbon dioxide, and new biomass.

[0015] To assess the pass criteria for "ready biodegradability," biodegradability testing can be performed using standardized methods such as OECD Method 301C, OECD Method 301D, OECD Method 301F, and OECD Method 310. These methods are suitable for volatile materials.

[0016] OECD Method 301C, OECD Method 301D, and OECD Method 301F are described in the OECD Guidelines for the Testing of Chemicals, Section 3, Test No. 301: Ready Biodegradability (adopted: July 17, 1992; https: / / doi.org / 10.1787 / 9789264070349-en).

[0017] OECD Method 310 is described in the OECD Guidelines for the Testing of Chemicals, Section 3, Test No. 310: Ready Biodegradability - CO2 in sealed vessels (Headspace Test) (adopted: March 23, 2006; amended: September 26, 2014; https: / / doi.org / 10.1787 / / 9789264016316-en).

[0018] In the context of the present invention, the pass criteria for "ready biodegradability" is assessed according to OECD Method 301F, which refers to manometric respirometry. In this method, the pass level for "ready biodegradability" is to reach 60% of the theoretical oxygen demand and / or chemical oxygen demand. This pass value must be achieved within a 10-day window of the 28-day test period. The 10-day window begins when the degree of biodegradation reaches 10% of the theoretical oxygen demand and / or chemical oxygen demand and must end before the 28th day of the test. A preferred method for carrying out OECD Method 301F is provided herein below.

[0019] If the test for ready biodegradability gives a positive result, it is assumed that the chemical will undergo rapid and ultimate biodegradation in the environment (Introduction to the OECD Guidelines for the Testing of Chemicals, Section 3, Part 1: Principles and Strategies Related to the Testing of Degradation of Organic Chemicals; adopted: July 2003).

[0020] To assess the pass criteria for "essentially biodegradable," biodegradation studies can be OECD Method 302C, but also OECD Method 301F can be used, although with different pass criteria. These methods are also suitable for volatile materials.

[0021] OECD Method 302C is described in the OECD Guidelines for the Testing of Chemicals, Section 3, Test No. 302C: Inherent Biodegradability: Modified MITI Test (II) (adopted: May 12, 1981; amended: September 8, 2009; https: / / doi.org / 10.1787 / 9789264070400-en).

[0022] In the context of the present invention, the pass criteria for "intrinsic biodegradability" is assessed by OECD Method 302C. In this method, the pass level for "intrinsic biodegradability" is then to reach 70% of the theoretical oxygen demand. There is no time limit for reaching this level.

[0023] A biodegradation rate above 70% may be considered as evidence of substantial and ultimate biodegradability (OECD Guidelines for the Testing of Chemicals, Section 3, Part 1: Principles and Strategies Related to the Testing of Degradation of Organic Chemicals; adopted: July 2003).

[0024] When OECD Method 301F is used to assess the pass criteria for "intrinsic biodegradability", the pass level is 60% of the theoretical oxygen demand and / or chemical oxygen demand. This pass value may be reached after a 28-day test period, which is usually extended to 60 days. The 10-day window does not apply.

[0025] In the present context, when an ingredient is an essential oil, it is considered to be a "biodegradable ingredient" if all of its constituents present at a level of ≧1% by weight fall within the definition of "intrinsically biodegradable" and / or "readily biodegradable" as defined herein. However, essential oils may also be subject to the biodegradation tests described above.

[0026] In the context of the present invention, a carbon atom in a molecule is defined as "renewable" if one or more of the following conditions are met: I. the carbon atom belongs to a naturally occurring portion of the molecule; II. The carbon atom belongs to a molecule that has been recovered from CO2; III. The carbon atom in question belongs to a molecular moiety that has been recovered from recycled plastics.

[0027] The term "bio-based" refers to materials that are intentionally made from substances derived from living (or formerly living) organisms (i.e., condition I above is met). The definition includes both naturally occurring materials and materials that have undergone some degree of processing.

[0028] In the context of the present invention, a "cationic" agent is one that has a permanent, pH-independent cationic charge, more specifically a quaternized nitrogen group, or is cationic at a pH below its isoelectric point. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0029] Detailed Description Preferred and / or optional features of the invention are now described. Any aspect of the invention may be combined with any other aspect of the invention unless the context requires otherwise. Any preferred or optional feature of any aspect may be combined with any aspect of the invention, as well as with any other preferred or optional feature, either alone or in combination, unless the context requires otherwise.

[0030] Liquid laundry care composition Applicant surprisingly and unexpectedly discovered that a) at least one unencapsulated fragrance ingredient; b) at least one core-shell microcapsule, wherein the at least one core-shell microcapsule comprises a core containing at least one encapsulated fragrance ingredient, and a shell surrounding the core; c) at least one surfactant; d) a suspending agent comprising at least one polysaccharide; e) optionally a cationic deposition agent; and optionally f) Electrolyte A liquid laundry care composition comprising have found that by enhancing deposition of both unencapsulated perfume and capsules onto fabrics, the overall perfume perception on fabrics can be enhanced. In addition, the liquid laundry care composition is stable and maintains clarity over a wide range of temperatures and over time.

[0031] The present invention therefore provides a) at least one unencapsulated fragrance ingredient; b) at least one core-shell microcapsule, wherein the at least one core-shell microcapsule comprises a core containing at least one encapsulated fragrance ingredient, and a shell surrounding the core; c) at least one surfactant; d) a suspending agent comprising at least one polysaccharide; e) optionally a cationic deposition agent; and optionally f) Electrolyte A liquid laundry care composition is provided, comprising:

[0032] In one embodiment of the invention, at least 60% by weight, preferably at least 80% by weight, more preferably at least 90% by weight, even more preferably 100% by weight of components a) to e) present in the liquid laundry care composition are biodegradable.

[0033] It may be advantageous for the components contained in the liquid laundry care composition to contain renewable carbon atoms. Thus, in one embodiment, at least 60% by weight, preferably at least 80% by weight, more preferably at least 90% by weight, and even more preferably 100% by weight of the carbon atoms present in the liquid laundry care composition are renewable.

[0034] In one embodiment, at least one of components c), d) or e) is bio-based, and optionally where at least two of components c), d) or e) are bio-based, and optionally where all three of components c), d) or e) are bio-based.The overall enhancement of the perception of perfume on fabric, due to both non-encapsulated perfume and capsules enhancing deposition on fabric, is even more surprising when most of the components are bio-based.The effect is at least as good as the equivalent formulation using non-bio-based surfactants, suspending agents, and optionally deposition agents.

[0035] Fragrance Ingredients In one embodiment, at least 60% by weight, preferably at least 80% by weight, more preferably at least 90% by weight, and even more preferably 100% by weight of the at least one unencapsulated fragrance ingredient and the at least one encapsulated fragrance ingredient are biodegradable.

[0036] The biodegradable fragrance ingredient(s) may be selected from the group consisting of: ACETYL ISOEUGENOL ((E)-2-methoxy-4-(prop-1-en-1-yl)phenyl acetate); ADOXAL (2,6,10-trimethylundec-9-enal); AGRUMEX (2-(tert-butyl)cyclohexyl acetate); ALDEHYDE C 10 DECYLIC (decanal); ALDEHYDE C 11 UNDECYLENIC (undec-10-enal); ALDEHYDE C 110 UNDECYLIC (undecanal); ALDEHYDE C 12 LAURIC (dodecanal); ALDEHYDE C 12 MNA (2-methylundecanal); ALDEHYDE C 8 OCTYLIC (octanal); CYCLAMEN ALDEHYDE EXTRA(3-(4-isopropylphenyl)-2-methylpropanal);ALDEHYDE ISO C 11((E)-undec-9-enal);ALLYL AMYL GLYCOLATE(prop-2-enyl 2-(3-methylbutoxy)acetate);ALLYL CYCLOHEXYL PROPIONATE(prop-2-enyl 3-cyclohexylpropanoate);ALLYL OENANTHATE(prop-2-enyl heptanoate);AMBRETTOLIDE((Z)-oxacycloheptadec-10-en-2-one);AMBROFIX((3aR,5aS,9aS,9bR)-3a,6,6,9a-tetramethyl-2,4,5,5a,7,8,9,9b-octahydro-1H-benzo[e][1]benzofuran);AMYL SALICYLATE(PENTYL 2-HYDROXYBENZOATE);AUBEPINE PARA CRESOL(4-METHOXYBENZALDEHYDE);BENZYL ACETATE(BENZYL ACETATE);BENZYL SALICYLATE(BENZYL 2-HYDROXYBENZOATE);BORNYL ACETATE((2S,4S)-1,7,7-TRIMETHYLBICYCLO[2.2.1]HEPTANE-2-YL ACETATE);CARVACROL(5-ISOPROPYL-2-METHYLPHENOL);CEDRENE((1S,8aR)-1,4,4,6-TETRAMETHYL-2,3,3a,4,5,8-HEXAHYDRO-1H-5,8a-METHANOAZULENE);CEDRYL ACETATE((1S,6R,8aR)-1,4,4,6-TETRAMETHYLOCTAHYDRO-1H-5,8a-METHANOAZULENE-6-YL ACETATE);CEDRYL METHYL ETHER((1R,6S,8aS)-6-METHOXY-1,4,4,6-TETRAMETHYLOCTAHYDRO-1H-5,8a-METHANOAZULENE);CITRAL((E)-3,7-DIMETHYLOCTA-2,6-DIENAL);CITRONELLOL(3,7-DIMETHYLOCTA-6-EN-1-OL);CITRONELLYL ACETATE(3,7-DIMETHYLOCTA-6-EN-1-YL ACETATE);COSMONE((Z)-3-METHYLCYCLOTETRADECA-5-ENONE);CRESYL METHYL ETHER PARA(1-METHOXY-4-METHYLBENZENE);CYCLOHEXYL ETHYL ACETATE(2-CYCLOHEXYL ETHYL ACETATE);CYCLOHEXYL SALICYLATE(CYCLOHEXYL 2-HYDROXYBENZOATE);DAMASCENONE((E)-1-(2,6,6-TRIMETHYLCYCLOHEXA-1,3-DIEN-1-YL)BUTA-2-EN-1-ONE);DAMASCONE ALPHA((E)-1-(2,6,6-TRIMETHYLCYCLOHEXA-2-EN-1-YL)BUTA-2-EN-1-ONE);DECALACTONE GAMMA(5-HEXYLOXOLAN-2-ONE);DECENAL-4-TRANS((E)-DECA-4-ENAL);DIHYDRO MYRCENOL(2,6-DIMETHYLOCTA-7-EN-2-OL);DIPHENYL OXIDE(OXYDIBENZENE);DIHYDRO ANETHOLE(1-METHOXY-4-PROPYLBENZENE);DIHYDRO JASMONE(3-METHYL-2-PENTYLCYCLOPENT-2-ENONE);DIMETHYL ANTHRANILATE(METHYL 2-(METHYLAMINO)BENZOATE);DIMETHYL BENZYL CARBINYL ACETATE(2-METHYL-1-PHENYLPROPAN-2-YL ACETATE);DIMETHYL BENZYL CARBINYL BUTYRATE (2-methyl-1-phenylpropan-2-ylbutanoate);DIMETOL (2,6-dimethylheptan-2-ol);DODECALACTONE DELTA (6-heptyltetrahydro-2H-pyran-2-one); DODECALACTONE GAMMA(5-OCTYLOXOLAN-2-ONE);DODECENAL((E)-DODECA-2-ENAL);EBANOL((E)-3-METHYL-5-(2,2,3-TRIMETHYLCYCLOPENT-3-EN-1-YL)PENT-4-EN-2-OL);ETHYL HEXANOATE;ETHYL METHYL-2-BUTYRATE;ETHYL MALTOL(2-ETHYL-3-HYDROXY-4H-PYRAN-4-ONE);ETHYL OENANTHATE;ETHYL VANILLIN(3-ETHOXY-4-HYDROXYBENZALDEHYDE);ETHYLENE BRASSYLATE(1,4-DIOXACYCLOHEPTADECANE-5,17-DIONE);EUCALYPTOL((1s,4s)-1,3,3-TRIMETHYL-2-OXABICYCLO[2.2.2]OCTANE);EUGENOL(4-ALLYL-2-METHOXYPHENOL);EVERNYL(METHYL 2,4-DIHYDROXY-3,6-DIMETHYLBENZOATE);FIXAMBRENE(3a,6,6,9a-TETRAMETHYLDODECAHYDRONAPHTHO[2,1-B]FURAN);FLORHYDRAL(3-(3-ISOPROPYLPHENYL)BUTANAL);FLORIDILE((E)-UNDECA-9-ENENITRILE);GALBANONE PURE(1-(5,5-dimethylcyclohex-1-en-1-yl)pent-4-en-1-one);GARDENOL(1-phenylethyl acetate);GERANIOL((E)-3,7-dimethylocta-2,6-dien-1-ol);GERANYL ACETATE((E)-3,7-dimethylocta-2,6-dien-1-yl acetate);HABANOLIDE((E)-oxacyclohexadec-12-en-2-one);HEDIONE(methyl 3-oxo-2-pentylcyclopentane acetate);HEXENAL-2-TRANS((E)-hex-2-enal);HEXENOL-3-CIS((Z)-hex-3-en-1-ol);HEXENYL-3-CIS ACETATE ((Z)-HEX-3-EN-1-YL ACETATE);HEXENYL-3-CIS SALICYLATE ((Z)-HEX-3-EN-1-YL 2-HYDROXYBENZOATE);HEXYL ACETATE;INDOLENE(8,8-DI(1H-INDOLE-3-YL)-2,6-DIMETHYLOCTANE-2-OL);IONONE BETA((E)-4-(2,6,6-TRIMETHYLCYCLOHEX-1-EN-1-YL)BUTA-3-EN-2-ONE);IRISANTHEME((E)-3-METHYL-4-(2,6,6-TRIMETHYLCYCLOHEX-2-EN-1-YL)BUTA-3-EN-2-ONE);IRISONE ALPHA((E)-4-(2,6,6-TRIMETHYLCYCLOHEX-2-EN-1-YL)BUTA-3-EN-2-ONE);ISOAMYL ACETATE(3-METHYLBUTYL ACETATE);ISOAMYL BUTYRATE(3-METHYLBUTYLBUTANOATE);ISOEUGENOL((E)-2-METHOXY-4-(PROP-1-EN-1-YL)PHENOL);ISOJASMONE B 11(2-HEXYLCYCLOPENT-2-EN-1-ONE);ISORALDEINE((E)-3-METHYL-4-(2,6,6-TRIMETHYLCYCLOHEX-2-EN-1-YL)BUTA-3-EN-2-ONE);JASMONYL(3-BUTYL-5-METHYLTETRAHYDRO-2H-PYRAN-4-YL ACETATE);LAITONE(8-ISOPROPYL-1-OXASPIRO[4.5]DECAN-2-ONE);LEMONILE((2E,6Z)-3,7-DIMETHYLNONA-2,6-DIENE NITRILE);LINALOOL(3,7-DIMETHYLOCTA-1,6-DIEN-3-OL);LINALOOL OXIDE(2-(5-METHYL-5-VINYLTETRAHYDROFURAN-2-YL)PROPAN-2-OL);LINALYL ACETATE(3,7-DIMETHYLOCTA-1,6-DIEN-3-YL ACETATE);MANZANATE(ETHYL 2-METHYLPENTANOATE);MAYOL((4-ISOPROPYLCYCLOHEXYL)METHANOL);MEFROSOL(3-METHYL-5-PHENYLPENTANOATE-1-OL);MELONAL(2,6-DIMETHYLHEPTA-5-ENAL);MERCAPTO-8-METHANE-3-ONE(MERCAPTO-PARA-MENTHAN-3-ONE);METHYL ANTHRANILATE(METHYL 2-AMINOBENZOATE);METHYL BENZOATE(METHYL BENZOATE);METHYL DIANTILIS(2-Ethoxy-4-(methoxymethyl)phenol);METHYL HEPTENONE PURE(6-Methylhept-5-en-2-one);METHYL LAITONE(8-Methyl-1-oxaspiro[4.5]decan-2-one);METHYL OCTYNE CARBONATE(METHYL NONA-2-YNOATE);METHYL SALICYLATE(METHYL 2-HYDROXYBENZOATE);NECTARYL(2-(2-(4-METHYLCYCLOHEX-3-EN-1-YL)PROPYL)CYCLOPENTANONE);NEOFOLIONE((E)-METHYL NONA-2-ENOATE);NEROLEX((2Z)-3,7-DIMETHYLOCTA-2,6-DIEN-1-OL);NEROLIDOL((Z)-3,7,11-TRIMETHYLDODECA-1,6,10-TRIEN-3-OL);NEROLINE CRYSTALS(2-Ethoxynaphthalene);NEROLIONE(1-(3-Methylbenzofuran-2-yl)ethanone);NERYL ACETATE((Z)-3,7-Dimethylocta-2,6-dien-1-yl acetate);NONADIENAL((2E,6Z)-Nona-2,6-dienal);NONENAL-6-CIS((Z)-Nona-6-enal);NONENOL-6-CIS((Z)-Nona-6-en-1-ol);NYMPHEAL(3-(4-(2-Methylpropyl)-2-methylphenyl)propanal);OCTALACTONE DELTA(6-Propyltetrahydro-2H-pyran-2-one);ORANGER CRYSTALS(1-(2-Naphthalenyl)-ethanone);PARA TERT BUTYL CYCLOHEXYL ACETATE(4-(tert-butyl)cyclohexyl acetate);PEACH PURE(5-heptyldihydrofuran-2(3H)-one);PELARGOL(3,7-dimethyloctan-1-ol);PHENYL ETHYL ACETATE(2-phenylethyl acetate);PINENE ALPHA(2,6,6-trimethylbicyclo[3.1.1]hept-2-ene);PINENE BETA(6,6-dimethyl-2-methylenebicyclo[3.1.1]heptane);POMAROSE((2E,5E)-5,6,7-TRIMETHYLOCTA-2,5-DIEN-4-ONE);POMELOL FF(2,4,7-TRIMETHYL-6-OCTE-1-OL);PRENYL ACETATE(3-METHYLBUTA-2-EN-1-YL ACETATE);PRUNOLIDE(5-PENTYLDIHYDROFURAN-2(3H)-ONE);RASPBERRY KETONE(4-(4-HYDROXYPHENYL)BUTANE-2-ONE);ROSALVA(DECA-9-EN-1-OL);ROSE OXIDE CO(4-METHYL-2-(2-METHYLPROP-1-EN-1-YL)TETRAHYDRO-2H-PYRAN);ROSYRANE SUPER(4-METHYL-2-PHENYL-3,6-DIHYDRO-2H-PYRAN);SAFRANAL(2,6,6-TRIMETHYLCYCLOHEXA-1,3-DIENECARBALDEHYDE);SCENTAURUS JUICY(4-(DODECYLTHIOPHENYL)-4-METHYLPENTAN-2-ONE);SILVIAL(2-METHYL-3-[4-(2-METHYLPROPYL)PHENYL]PROPANAL);STYRALLYL ACETATE(1-PHENYLETHYL ACETATE);SYLKOLIDE((E)-2-((3,5-DIMETHYLHEX-3-EN-2-YL)OXY)-2-METHYLPROPYL CYCLOPANECARBOXYLATE);TERPINENE GAMMA(1-METHYL-4-PROPAN-2-YL CYCLOHEXA-1,4-DIENE);TERPINEOL(2-(4-METHYLCYCLOHEX-3-EN-1-YL)PROPAN-2-OL);TERPINOLENE(1-METHYL-4-(PROPAN-2-YLIDENE)CYCLOHEX-1-ENE);TETRAHYDRO LINALOOL(3,7-DIMETHYLOCTANE-3-OL);TOSCANOL(1-(CYCLOPYLMETHYL)-4-METHOXYBENZENE);TRIDECENE-2-NITRILE((E)-TRIDECENE-2-ENENITRILE);TRIFERNAL(3-PHENYLBUTANAL);TROPIONAL(3-(BENZO[d][1,3]DIOXOL-5-YL)-2-METHYLPROPANAL);UNDECAVERTOL((E)-4-METHYLDECA-3-EN-5-OL);YARA YARA(2-METHOXYNAPHTHALENE);BOIS CEDRE ESS CHINE (Cedarwood oil);EUCALYPTUS GLOBULUS ESS CHINA;GALBANUM ESS;GIROFLE FEUILLES ESS RECT MADAGASCAR;LAVANDIN GROSSO OIL FRANCE ORPUR;MANDARIN OIL WASHED COSMOS;ORANGE TERPENES;PATCHOULI ESS INDONESIE;AND YLANG ECO ESSENCE. ;

[0037] All the above-mentioned ingredients are not only identified as meeting at least one of the above-mentioned biodegradability criteria, but also as suitable for application in consumer products, more specifically in laundry care products.They are also suitable for encapsulation in terms of their physical and chemical properties, such as lipophilicity, molecular size, reactivity to shell material, etc.Therefore, they provide a useful fragrance ingredient selection to easily and reliably provide more sustainable fragrance capsules.

[0038] Core-shell microcapsules Core-shell microcapsules are often used in consumer products such as household care products, personal care products, fabric care products, etc. Functional materials include, for example, fragrances, cosmetic actives, and biologically active ingredients such as biocides and drugs. These microcapsules are particularly suitable for the delivery of fragrances onto substrates such as skin, hair, fabrics, or hard surfaces in the home. They can also act as a means to control the spatiotemporal release of fragrances. Core-shell microcapsules include a core that contains the fragrance and a shell that is impermeable or partially impermeable to the encapsulated fragrance.

[0039] In one embodiment, the shell of the core-shell microcapsules is biodegradable. Such biodegradable shells typically comprise biodegradable polymers, more specifically biodegradable bio-derived polymers such as native or modified polysaccharides, and native, modified or denatured proteins.

[0040] Core-shell microcapsules are typically provided in the form of a suspension of microcapsules in water, referred to herein as a "slurry". The amount of microcapsules (solid content) in these slurries is typically 30-50% by weight, more specifically 35-45% by weight. The amount of microcapsules referred to herein refers to the amount of dry microcapsules contained in such a slurry.

[0041] In the liquid laundry care composition according to the invention, the core-shell microcapsules are dispersed in a composition comprising all other ingredients a), c), d), and optionally e) and / or f). The level of the microcapsules is 0.4% to 2% by weight, preferably 0.6% to 1.2% by weight, based on the total weight of the composition. At lower levels, the effect of the microcapsules may not be perceptible by the consumer, while at higher levels, the microcapsules may increase the turbidity of the composition.

[0042] Surfactants The liquid laundry care composition according to the present invention comprises at least one surfactant, the main function of which is to solubilize the non-encapsulated fragrance.

[0043] In one embodiment, at least one surfactant is selected from the group consisting of ethoxylated fatty acid triglycerides, more specifically ethoxylated castor oil, optionally hydrogenated castor oil; alkyl alcohol ethoxylates, alkyl polyglycerides, glycolipids, sugar amide surfactants, polyglyceryl fatty acid esters, amino acid esters, amino acid amides, alkyl glucosides and alkyl polyglucosides, sorbitan fatty acid ester alkyl glucoside crosspolymers, and combinations thereof.In one embodiment, at least one surfactant can be selected from the group consisting of polyglyceryl fatty acid esters, ethoxylated hydrogenated castor oil, alkyl alcohol ethoxylates, sorbitan fatty acid ester alkyl glucoside crosspolymers, lauryl glucoside, polyglyceryl-2 dipolyhydroxystearate, and combinations thereof.

[0044] In one embodiment, the at least one surfactant is Eumulgin VL75 (from BASF, a blend composed of lauryl glucoside, polyglyceryl-2 dipolyhydroxystearate and glycerin).

[0045] In one embodiment, the at least one surfactant is selected from the group consisting of Tego solve VE55 (Polyglyceryl-3 Caprylate / Caprate / Succinate, Propylene Glycol); Tego solve VE90 (Polyglyceryl-6 Caprylate (and) Polyglyceryl-4 Caprate); Tego soft PC41 (Polyglyceryl-4 Caprate, Polyglyceryl-4 Caprate); Tego solve 61 (Polyglyceryl-6 Caprylate, Polyglyceryl-3 Cocoate, Polyglyceryl-4 Caprate and Polyglyceryl-6 Ricinolate) (all from Evonik), and combinations thereof.

[0046] In one embodiment, suitable solubilization of the unencapsulated fragrance in the composition may be achieved by surfactants having a hydrophobic lipophilic balance (HLB) of 10 to 20, optionally 12 to 18. For example, suitable solubilization may be achieved by ethoxylated fatty acid triglycerides having an HLB greater than 13, such as poly(ethylene oxide) hydrogenated castor oil, e.g., Eumulgin CO 40 (from BASF), alkyl alcohol ethoxylates, e.g., Neodol 91 / 8 (from Shell), sorbitan oleate decyl glucoside crosspolymer, or combinations thereof.

[0047] Typically, the ethoxylated castor oil is obtained by transesterification of castor oil, which results in an ethoxylated triglyceride in which an ethylene oxide moiety is inserted between the glycerol residue and the fatty acid moiety. In one embodiment, the ethoxylated castor oil is an ethoxylated hydrogenated castor oil.

[0048] In one embodiment, the surfactants are bio-derived. The advantage of bio-derived surfactants is that they are derived from renewable resources. In one embodiment, the at least one surfactant is selected from the group consisting of bio-derived ethoxylated hydrogenated castor oil and bio-derived sorbitan fatty acid ester alkyl glucoside crosspolymer.

[0049] When bio-based ethoxylated fatty acid triglycerides are used, ethoxylated fatty acid triglyceride surfactants formed by using 100% bio-based ethylene oxide are particularly preferred. More specifically, ethoxylated hydrogenated castor oil containing 40 bio-derived ethylene oxide units is especially preferred.

[0050] In one embodiment, suitable solubilization can be achieved by combining surfactants having different HLB values, for example, by combining a first grade sorbitan oleate decyl glucoside crosspolymer having an HLB value of 12 to 14 with a second grade sorbitan oleate decyl glucoside crosspolymer having an HLB value of 8 to 10. In one embodiment, the surfactant is biodegradable.

[0051] In one embodiment, the amount of unencapsulated fragrance that can be solubilized in the composition is 1% to 4% by weight, more specifically 1.5% to 3.5% by weight. At lower levels, the effect of unencapsulated fragrance may be too weak, while at higher levels, solubilizing the fragrance may require too much surfactant. Ideally, the ratio of surfactant to unencapsulated fragrance is 1.5 to 3.5.

[0052] Suspension The liquid laundry care composition comprises at least one polysaccharide as a suspending agent. In one embodiment, the suspending agent comprising the polysaccharide is biodegradable. In one embodiment, the suspending agent comprising the polysaccharide is bio-derived.

[0053] The applicant has found that polysaccharides obtained from fermentation processes are particularly suitable as suspending agents in the context of the present invention. Such polysaccharides include bacterial cellulose, diutan gum, and combinations thereof. In addition to their excellent suspending power, the advantage of such suspending agents is that they are not only completely biologically derived, but also biodegradable.

[0054] The amount of the suspending agent in the composition is 0.005% to 1% by weight, preferably 0.05% to 0.5% by weight. This amount refers to the suspending agent in dry format. The bacterial cellulose is usually supplied in the form of a slurry in water, and this slurry contains 0.01 to 10% by weight of cellulose. Wood-derived cellulose, such as microfibrillated cellulose, may also be used.

[0055] Cationic deposition agents Cationic deposition agents that are suitable in the context of the present invention include cationic polymers, or polymers that are cationic at a pH below their isoelectric point. In one embodiment, the cationic deposition agent is biodegradable. In one embodiment, the cationic deposition agents are biologically derived. Such cationic deposition agents include cationic guar gum, proteins, choline chloride, and chitosan.

[0056] Cationic guar gum may vary in terms of molecular weight, charge, and nature of substitution. Common substituents include hydroxypropyltrimonium chloride and hydroxypropyl groups. Preferably, the cationic guar gum has a degree of substitution of 8% or less, such as Jaguar C-500 STD from Solvay. Compared to cationic guar gum grades with higher degrees of substitution, Jaguar C-500 STD provides a stable composition according to the present invention, is inherently biodegradable, and contains 92% renewable carbon.

[0057] Proteins are extremely versatile polyampholytes thanks to their chemical and structural diversity, hydrophilic to hydrophilic balance, and electrostatic properties. Proteins that are suitable in the context of the present invention include gelatin, whey protein, and proteins from vegan sources, such as soy protein, pea protein, rice protein, cotton protein, and hemp protein. These proteins may be used as is or in denatured form. Protein denaturation usually involves changes in the secondary, tertiary, and quaternary structure of proteins, converting highly functional and specialized macromolecules into materials that can be adopted in a wide range of applications. It is well known that denaturation can be induced, for example, by the action of temperature, pH, ionizing radiation, shear stress, water structure disrupting agents, and detergents. Proteins may be isolated from vegan sources by known processes such as extraction and centrifugation.

[0058] Choline chloride is a low molecular weight quaternary ammonium salt that has also surprisingly demonstrated an enhancing effect on microcapsule deposition.

[0059] Chitosan is a biopolymer derived from chitin that forms the exoskeleton of crustaceans and preserves the shape of various fungi, such as Ascomycota, Zygomycota, Basidiomycota, and Fungi Imperfecti, such as Absidia, Mucor, Aspergillus niger, Ganoderma lucidum, and Rhizopus oryzae. The production of chitosan involves alkaline or enzymatic deacetylation of chitin and is characterized by the grade of deacetylation. Both low deacetylation grades, typically less than 80% deacetylation, and high acetylation grades, typically greater than 80% deacetylation, exist. Deacetylated chitosan is a copolymer consisting of N-acetyl-D-glucosamine and D-glucosamine moieties. The deacetylation grade may be determined by 1H and / or 13C nuclear magnetic resonance spectroscopy. Chitosan with deacetylation grades of 60% to 100%, more particularly 70% to 90%, even more particularly 75% to 85%, has the advantage of being more soluble. Chitosan is typically available with molecular weights in the range of 3,000 to 5,000,000 g / mol. The molecular weight may be determined by viscosity measurements and / or gel permeation chromatography according to methods known in the art.

[0060] electrolyte The liquid laundry care composition optionally comprises an electrolyte, the role of which is to minimize electrostatic interactions between negatively charged polyelectrolytes, particularly diutan gum, and positively charged species, particularly cationic guar gum, as well as positively charged proteins and chitosan.

[0061] An additional role of the electrolyte may be to screen the negative charge of the microcapsules, thereby increasing their deposition capacity. Suitable electrolytes include water-soluble inorganic and organic salts. Inorganic salts of monovalent alkali metals, such as sodium chloride, potassium chloride and lithium chloride, are preferred over polyvalent metal salts, which may form insoluble complexes with the negatively charged polyelectrolytes.

[0062] Choline chloride may be considered either as a deposition agent as described herein above or as an electrolyte. In one embodiment, the liquid laundry care composition comprises an electrolyte selected from monovalent metal salts such as sodium chloride, choline chloride, and combinations thereof.

[0063] functional ingredients The liquid laundry care composition according to the present invention may further comprise functional ingredients such as optical brighteners, biocides, pest repellents, bacteriostats, enzymes and bentonite. More specifically, the enzyme may be cellulase. Such functional agents may be present in an amount of 0.01% to 5% by weight depending on the nature of the functional ingredient.

[0064] In one embodiment, the functional ingredient is an enzyme such as a cellulase, for example, endo-1,4-β-D-glucanase.

[0065] In one embodiment, the liquid laundry care composition comprises: a) 0.5 to 4% by weight, preferably 1.0 to 3.5% by weight, of at least one non-encapsulated fragrance ingredient; b) 0.2 to 2% by weight, preferably 0.3 to 1.2% by weight, of at least one core-shell microcapsule; c) 2.5 to 12% by weight, preferably 3 to 10% by weight, of at least one surfactant; d) at least one suspending agent comprising 0.05 to 6% by weight, preferably 0.1 to 5% by weight, of at least one polysaccharide; optionally wherein the at least one polysaccharide is obtained from a fermentation process; e) optionally, 0.0005 to 2 wt. %, preferably 0.0008 to 1.0 wt. %, of a cationic deposition agent; and, optionally, f) 0.1 to 5% by weight, preferably 0.5 to 2.5% by weight, of an electrolyte; and, optionally g) 0.01% to 5% by weight of one or more functional ingredients.

[0066] Among the range of compositions obtainable by combining the components set out herein above within the given ranges, some combinations are particularly preferred due to their superior stability and olfactory performance.

[0067] In one embodiment of the present invention, the liquid laundry care composition comprises: a) 0.5 to 4% by weight, preferably 1.0 to 3.5% by weight, of at least one non-encapsulated fragrance ingredient; b) 0.2 to 2% by weight, preferably 0.3 to 1.2% by weight, of at least one core-shell microcapsule; c) 2.5 to 8% by weight, preferably 3 to 6% by weight, of ethoxylated hydrogenated castor oil, optionally bio-derived ethoxylated hydrogenated castor oil; d) 0.05 to 6% by weight, preferably 0.1 to 5% by weight, of bacterial cellulose, diutan gum or a combination thereof; e) optionally, 0.0005 to 0.1% by weight, preferably 0.0008 to 0.002% by weight, of chitosan; and f) 0.0 to 2.5% by weight of an electrolyte, preferably sodium chloride, choline chloride, or a mixture thereof.

[0068] With regard to item e), it is particularly advantageous for the chitosan to have a molecular weight of 500,000 to 5,000,000 g / mol, more particularly 1,000,000 to 4,000,000 g / mol, and even more particularly 1,500,000 to 3,000,000 g / mol, which provides the best stability and olfactory performance when used in compositions containing ethoxylated hydrogenated castor oil.

[0069] In one embodiment of the present invention, the liquid laundry care composition comprises: a) 0.5 to 4% by weight, preferably 1.0 to 3.5% by weight, of at least one non-encapsulated fragrance ingredient; b) 0.2 to 2% by weight, preferably 0.3 to 1.2% by weight, of at least one core-shell microcapsule; c) 2.5 to 8% by weight, preferably 3 to 6% by weight, of ethoxylated hydrogenated castor oil, optionally bio-derived ethoxylated hydrogenated castor oil; d) 0.05 to 6% by weight, preferably 0.1 to 5% by weight, of bacterial cellulose, diutan gum and combinations thereof; e) optionally 0.2 to 2% by weight, preferably 0.4 to 1.2% by weight, of protein; and f) 0.0 to 2.5% by weight of an electrolyte, preferably sodium chloride, choline chloride, or a mixture thereof.

[0070] In one embodiment of the present invention, the liquid laundry care composition comprises: a) 0.5 to 4% by weight, preferably 1.0 to 3.5% by weight, of at least one non-encapsulated fragrance ingredient; b) 0.2 to 2% by weight, preferably 0.3 to 1.2% by weight, of at least one core-shell microcapsule; c) 4-12% by weight, preferably 8-10% by weight, of sorbitan oleate decyl glucoside crosspolymer having an HLB value of 12-14; d) 0.05 to 1% by weight, preferably 0.1 to 0.5% by weight, of diutan gum; e) 0.0005 to 0.1% by weight, preferably 0.0008 to 0.002% by weight, of chitosan; and f) 0.1-5% by weight, preferably 0.5-2.5% by weight, of an electrolyte, preferably sodium chloride, choline chloride, or a mixture thereof.

[0071] Regarding item e), it is particularly advantageous that the chitosan has a molecular weight of 3,000 to 1,000,000 g / mol, more particularly 10,000 to 500,000 g / mol, and even more particularly 30,000 to 300,000 g / mol. Such chitosan provides the best stability and olfactory performance when used in a composition containing sorbitan oleate decyl glucoside crosspolymer.

[0072] In one embodiment, the liquid laundry care composition is a liquid fragrance booster. In one embodiment, the liquid laundry care composition is a fabric refresher.

[0073] method In a second aspect, the present invention provides a method for obtaining a composition according to the present invention, said method comprising the step of emulsifying at least one non-encapsulated fragrance ingredient with a composition comprising at least one surfactant, at least one suspending agent, at least one core-shell microcapsule, optionally at least one cationic deposition agent, and optionally an electrolyte.

[0074] The non-encapsulated fragrance / fragrance ingredients, surfactants, suspending agents, core-shell microcapsules, cationic precipitants and electrolytes are as described herein above. The steps of dissolving and emulsifying the ingredients are preferably carried out at room temperature.

[0075] In order to solubilise the chitosan, the pH of the aqueous phase may be lowered, for example with acetic acid or citric acid, to a value between pH=3.5 and pH=5. Preferably, a suspending agent comprising at least one polysaccharide, such as bacterial cellulose, deutan gum or a combination thereof, is dispersed in water by using a blade operating at 1000-1700 rpm and then allowed to hydrate for 24 hours, thereby forming an aqueous phase.

[0076] If necessary, the emulsification step may be carried out by applying high shear mixing, for example by using a propeller, blade, blender, mixer, stirrer or rotor-stator mixer operating at a speed of 3000 rpm to 20000 rpm, or a high pressure homogenizer. In one embodiment, the pH of the liquid laundry care composition is from 3 to 7, more specifically from 3.5 to 6.

[0077] use In a third aspect, the present invention provides the use of a composition according to the invention for enhancing the perception of a fragrance on fabrics. In one embodiment, the liquid laundry care composition is a scent booster and may be used by pouring it into the fabric softener compartment of a washing machine, so that the composition is delivered to the fabric load after the wash cycle is completed.

[0078] In one embodiment, the weight ratio of the liquid fragrance booster composition to the laundry is 0.002 to 0.1, preferably 0.01 to 0.08. In one embodiment, the laundry care composition is a laundry refresher and may be sprayed onto clothing. Further features and specific advantages of the present invention will become apparent from the following examples.

[0079] example Example 1 – Liquid Scent Booster Formulation In this example, a series of samples were prepared by emulsifying free perfume oil in a composition containing water-soluble or water-dispersible ingredients including a surfactant, a suspending agent, a cationic deposition agent and a microcapsule slurry.

[0080] The stability of the resulting formulations was assessed visually and by using the Turbiscan AGS. The Turbiscan measures the colloidal stability of liquid systems by measuring the intensity of both transmitted and backscattered light from the liquid systems packed in a vertical tube. These intensities allow direct monitoring of local physical heterogeneity with a vertical resolution of up to 20 μm. Destabilization phenomena (settling or creaming layers, aggregates, agglomerates or coalescence) are detected and monitored over time and at various intervals. Such phenomena induce slight variations in the turbidity of the system along the vertical axis. Colloidal stability is indicated by the Turbiscan Stability Index (TSI): the lower this index, the more stable the colloid. A complete description of how to calculate this index can be found in https: / / www.formulaction.com / en / knowledge-center / turbiscan-stability-indexThermal stability was assessed by visual inspection after storage at 45° C. for 1 month.

[0081] In the context of the present invention, systems with TSI values ​​below 5 were considered to be stable with respect to phase separation.

[0082] 1.1. A liquid fragrance booster comprising a mixture of ethoxylated alkyl alcohol and ethoxylated hydrogenated castor oil as a surfactant and polyampholyte as a cationic deposition agent. The reference formulation is Example 1, which comprises a mixture of ethoxylated hydrogenated castor oil (Eumulgin CO40, ex BASF) and ethoxylated alkyl alcohol (Neodol 91 / 8, ex Shell) in a ratio of 3 / 2.5, and polyampholyte (Flosoft FS 222, ex SNF), as well as microcapsules with an aminoplast shell obtained by applying the method described in Example 1 of WO 2016 / 207180.

[0083] This formulation shows excellent performance in terms of stability and fragrance perception, but uses two non-bio-derived ingredients (Neodol 91 / 8 and Flosoft FS 222) as well as aminoplast microcapsules.

[0084] 1.2. A liquid fragrance booster that uses more bio-derived ingredients The following example illustrates a composition according to the invention that uses more bio-derived components than the composition of Example 1.1.

[0085] The composition was obtained as follows: To form solution A1, a 0.5 wt. % suspending agent solution was prepared by dissolving chitosan or Jaguar C 50 (cationic guar gum, from Solvay) in an aqueous phase whose pH had been previously adjusted to a value of 3.7±0.3.

[0086] According to Table 1, a known amount of liquid bacterial cellulose, Cellulon, or deutan gum was dispersed in approximately 60 g of water while stirring with a blade at 1000-1700 rpm for 15 minutes, and the solution was left for 24 hours to complete the hydration of the polymer and form solution B.

[0087] A known amount of surfactant and a known amount of free, unencapsulated fragrance oil according to Table 1 were added to Solution B while stirring with a propeller at a speed of 100 rpm. Solution A1, Jaguar C 500 (cationic guar gum, from Solvay) or protein (Coltide, from Croda) was added to the above mixture while maintaining the stirring speed at 100 rpm to provide a known amount of deposited polymer in the composition.

[0088] To provide a known amount of microcapsules in the composition, the stirring speed was reduced to 40 rpm and a known amount of microcapsule slurry containing a known amount of polysaccharide-based microcapsules was added to the above mixture while maintaining the stirring speed at 100 rpm.

[0089] A series of stable formulations, reported in Table 1, were prepared. Table 1: Liquid scent booster formulation [Table 1-1]

[0090] [Table 1-2]

[0091] Table 1: Liquid Scent Booster Formulations (continued) [Table 1-3]

[0092] [Table 1-4]

[0093] It can be observed that Poly Suga Mulse D6 and / or D9 (sorbitan oleate decyl glucoside crosspolymer, examples 4, 11, 16 and 17) can be advantageously used as a bio-based surfactant replacement for Neodol 91 / 8 and / or Eumulgin CO40 (examples 1-3 and 15). It can also be observed that bio-based PEG-40 hydrogenated castor oil (examples 5-10 and 12-14) can be used as a bio-based replacement for Eumulgin CO40 (examples 2, 3 and 15), a synthetic poly(ethylene oxide) hydrogenated castor oil.

[0094] Example 2 - Olfactory evaluation of liquid scent boosters 20 g of the series of compositions obtained in Example 1 were added to the fabric softener compartment of a European front-loading washing machine containing 850 g of cotton fabrics consisting of a cotton towel, a 100% polyester T-shirt, and a 95% cotton / 5% Lycra T-shirt. The wash cycle was completed at 40° C. for 50 minutes, followed by spin drying at 1000 rpm.

[0095] For the olfactory evaluation, the terry towels were handled with care to minimize the risk of mechanically damaging the microcapsules. The odor intensity was assessed on wet terry towels freshly removed from the washing machine without damaging the microcapsules. After line drying the terry towels at room temperature for 24 hours, pre-rub and post-rub olfactory evaluations were performed. Olfactory performance (intensity) was assessed by a panel of four experts on a scale of 1 to 5 (1 = barely perceptible, 2 = weak, 3 = moderate, 4 = strong, and 5 = extremely strong). In such evaluations, the post-rub score measures the additional impact induced by the breakage of the microcapsules compared to the pre-rub intensity.

[0096] The results of the olfactory evaluation are reported in Table 2. Table 2: Olfactory assessment score (intensity) [Table 2]

[0097] As is evident from Table 2, all samples provide good olfactory results. Samples 7, 8, 12, 13, 14, 16, and 19 provide surprisingly high post-rub odor intensity, especially when compared to non-bio-based sample 1 and partially bio-based sample 2.

[0098] The results also show that choline chloride (samples 12 and 13) without any other deposition agents dramatically enhances the olfactory performance of the composition, presumably by masking the negative charge of the microcapsules and increasing the deposition of the microcapsules.

[0099] These results show that the fully bio-based compositions according to the present invention (samples 6, 7, 8, 12, 13, 14, 16, 18, and 19) provide an equivalent or even better alternative to the non-bio-based composition 1 and the partially bio-based composition 2.

[0100] Example 3 - Liquid Fabric Refresher Formulation The samples were prepared as described in Example 1, except that the cationic deposition agent and electrolyte were omitted. The formulations are reported in Table 3.

[0101] Table 3: Liquid Fabric Refresher Formulation [Table 3-1]

[0102] [Table 3-2]

[0103] Example 4 - Olfactory evaluation of liquid fabric refreshers A series of 2 g of the compositions obtained in Example 3 was sprayed on fabrics consisting of 100% cotton T-shirts, 100% polyester T-shirts, and 95% cotton / 5% Lycra T-shirts. For olfactory evaluation, the fabrics were handled carefully to minimize the risk of mechanically damaging the microcapsules. The odor intensity was evaluated 5 minutes after spraying without damaging the microcapsules. The pre-rubbing and post-rubbing olfactory evaluations were performed after hanging the T-shirts at room temperature for 24 hours. The olfactory performance (intensity) was assessed by a panel of four experts on a scale of 1 to 5 (1=barely perceptible, 2=weak, 3=moderate, 4=strong, and 5=extremely strong). In such evaluation, the post-rubbing score measures the additional impact induced by the breakage of the microcapsules compared to the intensity before rubbing.

[0104] The results of the olfactory evaluation are reported in Table 4. Table 4: Olfactory assessment scores (intensity) [Table 4]

[0105] As is evident from Table 4, all samples provide good olfactory results. Samples 20, 21, 24, and 25 provide surprisingly high post-rub odor intensity, especially when compared to non-bio-derived samples 22 and 23. These results show that the fully bio-based compositions according to the present invention (samples 20, 21, 24, and 25) provide an equivalent or even better alternative to the non-bio-based compositions 22 and 23.

Claims

1. a) at least one unencapsulated perfume ingredient; b) at least one core-shell microcapsule, wherein the at least one core-shell microcapsule comprises a core containing at least one encapsulated perfume ingredient, and a shell surrounding the core; c) at least one surfactant; d) a suspending agent comprising at least one polysaccharide; e) optionally a cationic deposition agent; and optionally f) Electrolyte 1. A liquid laundry care composition comprising:

2. 2. The composition of claim 1, wherein at least 60% by weight of components a) to e) are biodegradable, preferably at least 80% by weight, more preferably at least 90% by weight, and even more preferably 100% by weight.

3. 2. The composition of claim 1, wherein at least 60% by weight, preferably at least 80% by weight, more preferably at least 90% by weight, and even more preferably 100% by weight of the at least one unencapsulated fragrance ingredient and the at least one encapsulated fragrance ingredient are biodegradable.

4. 2. The composition of claim 1, wherein at least 60% by weight, preferably at least 80% by weight, more preferably at least 90% by weight, and even more preferably 100% by weight of the carbon atoms present in the liquid scent booster composition are renewable.

5. 10. The composition of claim 1, wherein at least one of components c), d) or e) is bio-sourced, and optionally wherein at least two of components c), d) or e) are bio-sourced, and optionally wherein all three of components c), d) or e) are bio-sourced.

6. 2. The composition of claim 1, wherein the shell of the core-shell microcapsules comprises a biodegradable polymer, in particular a biodegradable bio-derived polymer such as a native or modified polysaccharide and a native, modified or denatured protein.

7. The composition of claim 1 , wherein at least one surfactant is biodegradable.

8. 2. The composition of claim 1, wherein the at least one surfactant is selected from the group consisting of ethoxylated fatty acid triglycerides, such as ethoxylated castor oil, optionally ethoxylated hydrogenated castor oil, alkyl alcohol ethoxylates, alkyl polyglycerides, glycolipids, sugar amide surfactants, polyglyceryl fatty acid esters, amino acid esters, amino acid amides, alkyl glucosides and alkyl polyglucosides, sorbitan fatty acid ester alkyl glucoside crosspolymers, and combinations thereof, optionally wherein the at least one surfactant is selected from the group consisting of ethoxylated hydrogenated castor oil, alkyl alcohol ethoxylates, sorbitan oleate decyl glucoside crosspolymer, lauryl glucoside, polyglyceryl-2 dipolyhydroxystearate, and combinations thereof.

9. 10. The composition of claim 1, wherein the at least one polysaccharide is selected from the group consisting of cellulose obtained from a fermentation process, such as bacterial-derived cellulose, diutan gum, and combinations thereof.

10. 10. The composition of claim 1, wherein the deposition agent is selected from the group consisting of cationic guar gum, proteins, and chitosan.

11. 10. The composition of claim 1, wherein the electrolyte is selected from the group consisting of monovalent metal salts, choline chloride, and combinations thereof.

12. a) 0.5 to 4% by weight, preferably 1.0 to 3.5% by weight, of at least one non-encapsulated perfume ingredient; b) 0.2 to 2% by weight, preferably 0.3 to 1.2% by weight, of at least one core-shell microcapsule; c) 2.5 to 12% by weight, preferably 3 to 10% by weight, of at least one surfactant, optionally wherein the surfactant is of biological origin; d) 0.05 to 6% by weight, preferably 0.1 to 5% by weight, of a suspending agent comprising at least one polysaccharide; optionally wherein the at least one polysaccharide is obtained from a fermentation process; e) optionally 0.0005 to 2 wt. %, preferably 0.0008 to 1.0 wt. %, of a cationic deposition agent; and optionally f) 0.1 to 5% by weight, preferably 0.5 to 2.5% by weight of an electrolyte The composition of claim 1 comprising:

13. a) 0.5 to 4% by weight, preferably 1.0 to 3.5% by weight, of at least one non-encapsulated perfume ingredient; b) 0.2 to 2% by weight, preferably 0.3 to 1.2% by weight, of at least one core-shell microcapsule; c) 2.5 to 8 wt. %, preferably 3 to 6 wt. %, of ethoxylated hydrogenated castor oil, optionally bio-derived ethoxylated hydrogenated castor oil; d) 0.05 to 6% by weight, preferably 0.1 to 5% by weight, of bacterial cellulose, diutan gum, or a combination thereof; e) optionally 0.0005 to 0.1 wt. %, preferably 0.0008 to 0.002 wt. %, of chitosan, wherein the chitosan has a molecular weight of 500,000 to 5,000,000 g / mol, in particular 1,000,000 to 4,000,000 g / mol, more particularly 1,500,000 to 3,000,000 g / mol; and f) 0.0 to 2.5% by weight of an electrolyte, preferably sodium chloride, choline chloride, or a mixture thereof The composition of claim 1 comprising:

14. a) 0.5 to 4% by weight, preferably 1.0 to 3.5% by weight, of at least one non-encapsulated perfume ingredient; b) 0.2 to 2% by weight, preferably 0.3 to 1.2% by weight, of at least one core-shell microcapsule; c) 2.5 to 8 wt. %, preferably 3 to 6 wt. %, of ethoxylated hydrogenated castor oil, optionally bio-derived ethoxylated hydrogenated castor oil; d) 0.05 to 6% by weight, preferably 0.1 to 5% by weight, of bacterial cellulose, diutan gum, or a combination thereof; e) optionally 0.2 to 2% by weight, preferably 0.4 to 1.2% by weight, of protein; and f) 0.0 to 2.5% by weight of an electrolyte, preferably sodium chloride, choline chloride, or a mixture thereof The composition of claim 1 comprising:

15. a) 0.5 to 4% by weight, preferably 1.0 to 3.5% by weight, of at least one non-encapsulated perfume ingredient; b) 0.2 to 2% by weight, preferably 0.3 to 1.2% by weight, of at least one core-shell microcapsule; c) 4 to 12% by weight, preferably 8 to 10% by weight, of sorbitan oleate decyl glucoside crosspolymer having an HLB value of 12 to 14; d) 0.05 to 1% by weight, preferably 0.1 to 0.5% by weight, of diutan gum; e) 0.0005 to 0.1 wt. %, preferably 0.0008 to 0.002 wt. % of chitosan, wherein the chitosan has a molecular weight of 3,000 to 1,000,000 g / mol, in particular 10,000 to 500,000 g / mol, more particularly 30,000 to 300,000 g / mol; and f) 0.1 to 5% by weight, preferably 0.5 to 2.5% by weight, of an electrolyte, preferably sodium chloride, choline chloride, or a mixture thereof. The composition of claim 1 comprising:

16. 10. The composition of claim 1 which is a liquid fragrance booster or fabric refresher.

17. 17. A method for preparing a composition according to any one of claims 1 to 16, comprising the step of emulsifying at least one unencapsulated fragrance ingredient with a composition comprising at least one surfactant, at least one suspending agent, at least one microcapsule, optionally at least one deposition agent, and optionally an electrolyte.

18. Use of a composition according to any one of claims 1 to 16 to provide an enhanced fragrance perception on fabrics.

19. 20. The use of the composition of claim 18, wherein the composition is added to the fabric softener compartment of a washing machine, and the composition is a liquid scent booster.

20. Use of the composition according to claim 18, wherein the weight ratio of composition to fabric load is between 0.001 and 0.1, preferably between 0.01 and 0.

08.

21. 20. Use of the composition of claim 18, wherein the composition is sprayed onto laundry and the composition is a laundry refresher.