Fabric Care Composition

Abstract

The present invention relates to bleach-free laundry disinfectant compositions comprising at least one microcapsule composition comprising a polymer encapsulating a benefit agent, wherein the benefit agent is encapsulated in a core-shell microcapsule comprising a core and a shell surrounding the core.

Description

[Technical field]

[0001] The present invention relates to laundry disinfectant compositions, particularly bleach-free laundry disinfectant compositions containing encapsulated fragrance. [Background technology]

[0002] 2. Background of the Invention It is known to incorporate encapsulated functional materials into 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.

[0003] Particularly suitable microcapsules for the delivery of such functional materials are core-shell microcapsules, where the core contains the functional material and the shell is impermeable or partially impermeable to the functional material. Typically, these microcapsules are used in aqueous media and the encapsulated functional material is hydrophobic. It is desirable that the shell material does not react with the functional material, is inexpensive, and exhibits stable properties during storage.

[0004] A wide range of materials, such as aminoplast resins, polyurea resins, polyurethane resins, polyacrylate resins, and combinations thereof, have been used to encapsulate functional materials, particularly volatile functional materials such as fragrance ingredients. The encapsulated fragrance composition is typically prepared in the form of an aqueous slurry of microcapsules. Core-shell microcapsules are relatively resistant to fragrance leakage when dispersed in aqueous suspension media, even media containing surfactants. However, when the encapsulated fragrance composition in slurry form is incorporated into a harsh environment, such as a consumer product base containing cationic surfactants and / or a relatively acidic or basic pH, stability and / or leakage problems arise, especially during relatively long storage periods. It is also known that the stability of the polymer shell is adversely affected by the presence of organic solvents. Thus, the lack of stability of the microcapsule shell is expected to be amplified when the consumer product base contains organic solubilizing ingredients, such as alcohol, in addition to the cationic surfactant, and / or when the consumer product base has a pH in a significantly acidic or basic range.

[0005] Washing at temperatures below 60°C using laundry detergent alone does not completely kill bacteria and viruses. Traditionally, white laundry is disinfected with bleach. However, colored laundry is not compatible with bleach, so another chemical composition must be used to obtain disinfection. Antibacterial laundry disinfectants suitable for laundry of all colors have been developed, generally using organic compounds with antiseptic properties as antibacterial agents. Such laundry disinfectants are commercialized as clear liquids, usually colorless or slightly colored, and have no or very mild fragrance. These disinfectants are designed to be used in the rinse stage after the washing cycle with detergent is completed.

[0006] When used in washing machines, the disinfectant is added to the fabric softener dispenser or poured directly into the rinse cycle, discouraging customers from using any other laundry care products that are added to the fabric softener dispenser, such as laundry softeners or scent boosters. Some laundry disinfectants have a mild fragrance, but once the wash is complete, the fragrance is barely detectable. At the same time, the natural odor of laundry disinfectants is a "chemical" odor that, while not bad, is not particularly pleasant.

[0007] Today, customers expect fabric care products to provide a fragrance perception throughout the wash and rinse cycles, the moment the laundry is removed from the washing machine, during drying, and after the laundry is dry. Such a release profile is achieved by using encapsulated fragrance components, which essentially contribute to enhancing the fragrance perception in the dry fabric. In addition, the encapsulated components may be released during handling of the fabric, typically under the action of mechanical forces.

[0008] Therefore, there is a need to provide a bleach-free laundry disinfectant that simultaneously disinfects laundry and provides the consumer with a fragrance perception throughout the wash and rinse cycles, the moment the laundry is removed from the washer, during drying, and after the laundry is dry.

[0009] Applicants have surprisingly and unexpectedly discovered that incorporating at least one microcapsule composition comprising a polymer encapsulating a benefit agent, wherein the benefit agent is encapsulated in a core-shell microcapsule comprising a core and a shell surrounding the core, into a bleach-free laundry disinfectant can simultaneously meet both disinfection and fragrance perception requirements.

[0010] 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. Consumers are increasingly concerned about the sustainability of the products they use, but biodegradable and / or naturally derived ingredients generally fail to meet consumer expectations as they do not perform as well as their more established non-biodegradable counterparts. Hence the need to offer bleach-free laundry disinfectants with high biodegradable ingredients. Summary of the Invention

[0011] Summary of the Invention In a first aspect, the present invention provides a bleach-free laundry disinfectant composition comprising at least one microcapsule composition comprising a polymer encapsulating a benefit agent, wherein the benefit agent is encapsulated in a core-shell microcapsule comprising a core and a shell surrounding the core.

[0012] In a further aspect, the present invention provides a method of preparing the bleach-free laundry disinfectant compositions described herein.

[0013] In a further aspect, there is provided the use of at least one microcapsule composition comprising a polymer encapsulating a benefit agent, wherein the benefit agent is encapsulated in a core-shell microcapsule comprising a core and a shell surrounding the core, to improve the perception or enhance the performance of a bleach-free laundry disinfectant composition.

[0014] definition The term "benefit agent" refers to any substance that, when added to a product, may improve the consumer's perception of the product or enhance the product's action in an application. Examples of benefit agents include perfume or fragrance ingredients, bioactive agents (such as germicides, insect repellents, and pheromones), substrate enhancers (such as silicones and polishing agents), enzymes (such as lipases and proteases), dyes and pigments, and combinations thereof.

[0015] A "biodegradable" material is defined as a material whose physical and chemical properties deteriorate and decompose completely when exposed to the environment. This property is therefore related to the end of life of the material. Biobased materials can be biodegradable or non-degradable. Similarly, many biobased materials are biodegradable (eg, starch), but not all biodegradable materials are biobased.

[0016] In the context of the present invention, a "biodegradable" ingredient is one 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.

[0017] 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. 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).

[0018] OECD Method 301 is described in OECD Guidelines for the Testing of Chemicals, Section 3, Test No. 301: Ready Biodegradability - CO2 in sealed vessels (Headspace Test) (adopted: 23 March 2006; amended 26 September 2014; https: / / doi.org / 10.1787 / 9789264070349-en).

[0019] In the context of the present invention, the pass criterion for "ready biodegradability" is evaluated according to OECD Method 301F, which refers to manometric respirometry. In this method, the pass criterion for "ready biodegradability" is to reach 60% of the theoretical oxygen demand and / or chemical oxygen demand. This pass value must be achieved within 10 days 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 by the 28th day of the test. If a positive result is obtained in the test for ready biodegradability, it is assumed that the chemical undergoes 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] In the context of the present invention, unless otherwise indicated, all percentages refer to percentages by weight (% w / w).

[0021] Detailed explanation 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, alone or in combination, with any aspect of the invention, as well as with any other preferred or optional feature, unless the context requires otherwise.

[0022] Applicants have surprisingly and unexpectedly discovered that bleach-free laundry disinfectant compositions comprising at least one microcapsule composition comprising a polymer encapsulating a benefit agent, where the benefit agent is encapsulated in a core-shell microcapsule comprising a core and a shell surrounding the core, can enhance the overall fragrance perception of the laundry disinfectant on fabrics.

[0023] Thus, the present invention provides a bleach-free laundry disinfectant composition comprising at least one microcapsule composition comprising a polymer encapsulating a benefit agent, wherein the benefit agent is encapsulated in a core-shell microcapsule comprising a core and a shell surrounding the core.

[0024] Microcapsule Composition The microcapsules of the present invention are presented in the form of core-shell microcapsules, where a core containing the benefit agent is encapsulated within a shell material.

[0025] The core-shell microcapsule composition is generally provided in the form of a slurry, i.e., a dispersion or suspension of microcapsules in an aqueous medium which may contain anywhere in the region of 60 wt-% water. If desired, the slurry can be dried to provide the microcapsule composition in the form of a powder or cake, which generally contains around 5 wt-% water.

[0026] In one embodiment, the shell of the core-shell microcapsule comprises a polymer selected from the group consisting of melamine-formaldehyde polymers, urea-formaldehyde polymers, polyureas, polyurethanes, polyamides, polyacrylates, polycarbonates, and mixtures thereof, as defined herein.

[0027] thermosetting resin Thermosetting resins are typically obtained by reacting polyfunctional monomers such as amines, isocyanates, alcohols or phenols, chlorocarboxylic acids, (meth)acrylates, epoxides, silanes and aldehydes. Thermosetting resins, such as aminoplast, polyurea and polyurethane resins and combinations thereof, are commonly used as shell materials in the preparation of core-shell microcapsules. They are particularly valued for their leak-tightness when dispersed in aqueous suspension, even in surfactant-containing media.

[0028] In one embodiment, the shell may comprise a melamine-formaldehyde polymer. This type of core-shell capsule has proven to be particularly suitable for benefit agent encapsulation and is described, for example, in WO 2018 / 197266 A1, WO 2016 / 207180 A1, WO 2017 / 001672 A1.

[0029] In one embodiment, the shell may comprise a polyurea or polyurethane polymer. This type of core-shell capsule has also been successfully used to encapsulate benefit agents and has the advantage of addressing consumer concerns regarding residual formaldehyde in the composition. Such capsules are also described, for example, in WO 2016 / 071149 A1.

[0030] In one embodiment, the shell may comprise polyacrylate, one or more polymerized forms of monoethylenically unsaturated and / or polyethylenically unsaturated monomer(s). This type of core-shell capsule has also been successful in encapsulating benefit agents. Such capsules have been described in the prior art, for example in WO 2013 / 111912 A1 or WO 2014 / 032920 A1.

[0031] Polymer Stabilizers In one embodiment, the shell may comprise a polymeric stabilizer formed by a combination of a polymeric surfactant and at least one aminosilane. The polymeric surfactant comprises a polysaccharide comprising a carboxylic acid group. The aminosilane is as defined below. The shell may further comprise a polysaccharide, preferably a polysaccharide comprising beta (1→4) linked monosaccharide units, more preferably a cellulose derivative, in particular selected from the group consisting of hydroxyethylcellulose, hydroxypropylmethylcellulose, cellulose acetate, carboxymethylcellulose and combinations thereof, preferably hydroxyethylcellulose. Such capsules have been described in the prior art, for example in WO 2020 / 233887A1.

[0032] Hydrated Polymer Phases and Polymer Stabilizers In one embodiment, the shell may comprise a hydrated polymer phase and a polymeric stabilizer at the interface between the shell and the core.

[0033] In such an arrangement, the polymeric stabilizer provides an impermeable encapsulating material while the hydrated polymer phase provides the desired deposition and adhesion to the substrate. Furthermore, without being bound by any theory, it is speculated that this also provides an optimal point for microbial degradation.

[0034] The polymeric stabilizer may be selected from a wide range of film-forming materials and resins. Preferably, the polymeric stabilizer is highly crosslinked to significantly reduce diffusion of the encapsulated benefit agent through the shell. Preferably, the impermeability of the shell is high enough to significantly prevent leakage of the benefit agent in the extraction base, such as a consumer product containing a surfactant.

[0035] In one embodiment of the invention, the polymeric stabilizer is a thermosetting resin. Thermosetting resins are typically obtained by reacting polyfunctional monomers such as amines, isocyanates, alcohols or phenols, chlorocarboxylic acids, (meth)acrylates, epoxides, silanes and aldehydes.

[0036] In one embodiment of the invention, the polymeric stabilizer is formed by the reaction of an aminosilane with a multifunctional isocyanate. Such polymeric stabilizers have the advantage that they are highly crosslinked and prone to provide surface anchoring groups that can be used to immobilize additional materials to complete the shell formation. These additional materials may include additional encapsulating materials, coatings, and simple and complex coacervates, and hydrogels, as described in more detail below.

[0037] The aminosilane used in forming the polymeric stabilizer can be selected from compounds represented by formula (I). Si(R 1 )(R 2 ) f (OR 3 ) (3-f) Formula (I) In the formula, R 1 is a linear or branched alkyl or alkenyl residue containing an amine function; R 2 are each independently a linear or branched alkyl group having 1 to 4 carbon atoms; R 3 are each independently H or a straight or branched alkyl group having 1 to 4 carbon atoms; and f is 0, 1, or 2.

[0038] Silane groups may also undergo polycondensation reactions with each other to form a silica network at the oil / water interface, further stabilizing this interface. In one embodiment, R 2 and R 3 are each independently methyl or ethyl. In one embodiment, f is 0 or 1.

[0039] In one embodiment, R 1 is C1-C containing amine functional groups 12 is a linear or branched alkyl or alkenyl residue of the formula: 1 is a C1-C4 linear or branched alkyl or alkenyl residue containing an amine function. In one embodiment, the amine functional group is a primary amine, a secondary amine, or a tertiary amine.

[0040] In one embodiment, at least one aminosilane is a bimodal aminosilane. "Bimodal aminosilane" refers to a molecule that comprises at least one amino group and two residues, each of which has at least one alkoxysilane moiety. Compared with conventional aminosilanes, bimodal aminosilanes are particularly advantageous for forming stable oil-water interfaces. Without wishing to be bound by theory, it is believed that this beneficial role is due to the specific bidirectional arrangement of silane moieties in the molecule of bimodal aminosilanes, which allows the formation of a more tightly connected silica network at the oil-water interface.

[0041] In one embodiment, the bimodal aminosilane is a compound of formula (II). (OR 3 ) (3-f) (R 2 ) f Si-R 4 -XR 4 -Si(OR 3 ) (3-f) (R 2 ) f Formula (II) In the formula, X is -NR 5 -, -NR5 -CH2-NR 5 -, -NR 5 -CH2-CH2-NR 5 -, -NR 5 -CO-NR 5 -,or [ka] and R 2 are each independently a straight or branched alkyl having 1 to 4 carbon atoms; R 3 are each independently H or a straight or branched alkyl group having 1 to 4 carbon atoms; R 4 are each independently a straight-chain or branched alkylene group having 1 to 6 carbon atoms; R 5 are each independently H, CH3, or C2H5; and Each f is independently 0, 1 or 2.

[0042] In one embodiment, R 2 is CH3 or C2H5. In one embodiment, R 3 is CH3 or C2H5. In one embodiment, R 4 is -CH2-, -CH2-CH2- or -CH2-CH2-CH2-CH2-. In one embodiment, R 5 is H or CH3. In one embodiment, f is 0 or 1.

[0043] Examples of suitable bimodal aminosilanes include, but are not limited to, bis(3-(triethoxysilyl)propyl)amine, N,N'-bis(3-(trimethoxysilyl)propyl)urea, bis(3-(methyldiethoxysilyl)propyl)amine, N,N'-bis(3-(trimethoxysilyl)propyl)ethane-1,2-diamine, bis(3-(methyldimethoxysilyl)propyl)-N-methylamine, N,N'-bis(3-(triethoxysilyl)propyl)piperazine, and combinations thereof. In one embodiment, the bimodal aminosilane is bis(3-(triethoxysilyl)propyl)amine, which has the advantage of releasing ethanol during polycondensation of ethoxysilane groups instead of the more toxic and less preferred methanol.

[0044] The bimodal aminosilane can be a secondary aminosilane. The use of a secondary bimodal aminosilane instead of a primary aminosilane reduces the reactivity of the polymeric stabilizer to electrophilic species, especially aldehydes. Thus, benefit agents containing high levels of aldehydes may be encapsulated with less tendency for deleterious interactions between the core-forming material and the shell-forming material.

[0045] Other aminosilanes can also be used in combination with the aforementioned bimodal aminosilanes, especially those mentioned herein above.

[0046] The polyfunctional isocyanate may be selected from organic isocyanates in which the isocyanate group is bonded to an organic residue (RN=C=O or R-NCO). The polyfunctional isocyanate may be selected from alkyl, alicyclic, aromatic and alkylaromatic, and anionically modified polyfunctional isocyanates and combinations thereof having two or more (e.g., three, four, five, etc.) isocyanate groups in the molecule.

[0047] Preferably, the polyfunctional isocyanate is an aromatic or alkylaromatic isocyanate, with the alkylaromatic polyfunctional isocyanate preferably having a methylisocyanate group attached to the aromatic ring. Both aromatic and methylisocyanate-substituted aromatic polyfunctional isocyanates have superior reactivity compared to alkyl and alicyclic polyfunctional isocyanates. Among these, 2-ethylpropane-1,2,3-tolyltris((3-(isocyanatomethyl)phenyl)carbamate) is particularly preferred due to its trifunctional nature, which favors the formation of intermolecular crosslinks, and due to its intermediate reactivity, which favors network uniformity. This alkylaromatic polyfunctional isocyanate is commercially available and sold under the trademark Takenate D-100 N by Mitsui, or Desmodur by Covestro. (登録商標) Sold under the trademark Quix175.

[0048] As an alternative to aromatic or alkylaromatic polyfunctional isocyanates, it may also be advantageous to add anionically modified polyfunctional isocyanates, due to the ability of such polyfunctional isocyanates to react at the oil / water interface and even in the aqueous phase close to the oil / water interface. A particularly suitable anionically modified polyfunctional isocyanate has the formula (III): [ka] Formula (III)

[0049] Formula (III) shows a commercially available anionically modified polyisocyanate, which is sold by Covestro under the trade name Bayhydur (登録商標) It is a modified isocyanurate of hexamethylene diisocyanate sold under the trademark XP2547.

[0050] In a preferred embodiment of the invention, the polyfunctional isocyanate is 2-ethylpropane-1,2,3-tolyltris((3-(isocyanatomethyl)phenyl)carbamate). Particularly preferred, the polymeric stabilizer is formed by the reaction of bis(3-(triethoxysilyl)propyl)amine with 2-ethylpropane-1,2,3-tolyltris((3-(isocyanatomethyl)phenyl)carbamate). This particular combination of bimodal secondary aminosilane and polyfunctional isocyanate provides advantageous interface stability and release characteristics. The stabilized interface is sufficiently impermeable and has the desired surface functionality to effectively encapsulate at least one benefit agent contained in the core.

[0051] In a preferred embodiment of the invention, the hydrated polymer phase can be a coacervate, especially a complex coacervate. "Complex coacervation" refers to the formation of an interfacial layer comprising a mixture of polyelectrolytes.

[0052] The phenomenon of coacervation can be observed by optical microscopy, where it is manifested by the appearance of a ring around the droplet of the core composition, which consists of the aforementioned polyelectrolyte-rich phase, which has a different refractive index than the surrounding aqueous phase.

[0053] Polyelectrolyte coacervation is generally induced by bringing the polyelectrolyte close to its isoelectric point, the point at which the net charge of the polyelectrolyte is zero or close to zero. This can be achieved by altering the salt concentration or the pH of the medium. In complex coacervation, complexation occurs at a pH where one of the polyelectrolytes has an overall positive charge (polycation) and the other polyelectrolyte has an overall negative charge (polyanion), resulting in a neutral overall charge for the complex.

[0054] In a preferred embodiment of the invention, a coacervate may be formed from a polycation and a polyanion.

[0055] Preferably, pH is used as the parameter driving the coacervation. Thus, the polycation preferably has a charge that is pH-dependent. This is the case for polymers with primary, secondary and tertiary amino groups, such as polyamines, e.g. chitosan, and most proteins, e.g. gelatin. Proteins have the added advantage of being susceptible to temperature-dependent structural changes, which can also be used to control the morphology of the coacervate. Notably, changing the temperature of some proteins induces the formation of secondary, tertiary and quaternary protein structures, which can be used to control the properties of the coacervate.

[0056] Chitosan has the advantage that it is derived from the natural polymer chitin. In a preferred embodiment of the invention, the polycation is selected from the group consisting of proteins, chitosan, and combinations thereof.

[0057] More specifically, the polycation can be a protein selected from the group consisting of gelatin, casein, albumin, polylysine, soy protein, pea protein, rice protein, hemp protein, and combinations thereof. In a particularly preferred embodiment of the present invention, the at least one protein is gelatin, even more preferably type B gelatin.

[0058] Type B gelatin is obtained from the alkaline treatment of collagen and is well known for its ability to form complexes with anionic polyelectrolytes such as negatively charged polysaccharides under slightly acidic conditions.

[0059] Gelatins are often characterized by the so-called "Bloom strength". It refers to the stiffness of a gelatin film, measured by the so-called "Bloom Gelometer" according to the official procedure of the Gelatin Manufacturers Institute of America, Inc., revised in 2019, Chapter 2.1. According to this procedure, the Bloom strength, expressed in Bloom, is equal to the weight, expressed in g, required to move a standardized plunger with a diameter of 12.5 mm vertically to a depth of 4 mm into a gelatin gel prepared under controlled conditions, i.e., in a standardized bottle, by dissolving 6.67 wt.-% gelatin in deionized water at 60 °C and allowing the gel to form for 17 h at 10 °C. The higher the weight, the higher the bloom strength of the gelatin used to make the tested gel.

[0060] In a preferred embodiment of the present invention, Type B gelatin has a Bloom strength of 90 to 250 Bloom.

[0061] If the bloom strength is too low, the gel will be mechanically weak and the resulting coacervate may not form a self-supporting layer of gelatin-rich phase around the core composition, and if the bloom strength is too high, the coacervate and resulting gelatin-rich phase will be too brittle.

[0062] In a preferred embodiment of the present invention, type B gelatin is obtained from fish, since fish gelatin is better accepted by consumers than beef or pork gelatin, mainly due to health concerns, social background or religious rules.

[0063] Alternatively, the protein may be a vegetable protein, in particular pea protein and / or soy protein, which have the advantage of being vegan.

[0064] The polycation may be a denatured protein. Contrary to native proteins, denatured proteins are deprived of the ability to form secondary, tertiary or quaternary structures and are essentially amorphous. Such amorphous proteins may form more impermeable membranes compared to native proteins, thus also contributing to the encapsulating power of the shell. Denaturation can be achieved by treating the protein with chemical or physical means, such as, for example, acid or alkali treatment, heat, or exposure to hydrogen bond-disrupting agents.

[0065] In the case where the polycation is chitosan, the chitosan may have a molecular weight between 3,000 and 1,000,000 g / mol, more specifically between 10,000 and 500,000 g / mol, and even more specifically between 30,000 and 300,000 g / mol.

[0066] The polyanion may be any negatively charged polymer. However, since pH is preferably used to control coacervation, it may be more advantageous for the charge of the polymer to be pH dependent. Such polymers may be selected from polymers with pendant carboxyl groups, such as methacrylic and acrylic acid polymers and copolymers, hydrolyzed maleic anhydride copolymers and polysaccharides with carboxyl groups.

[0067] In a preferred embodiment of the invention, the polyanion is a polysaccharide containing carboxylate and / or sulfate groups.

[0068] Polysaccharides containing carboxylate groups are particularly suitable for complex coacervation with proteins. This is because the net charge of these polysaccharides can be adjusted by adjusting the pH, facilitating complexation with amphoteric proteins. Complexation occurs at a pH where proteins have an overall positive charge, whereas polysaccharides have an overall negative charge, resulting in a neutral overall charge for the complex. These polysaccharides include native polysaccharides, i.e., polysaccharides that are not modified from nature, and modified polysaccharides.

[0069] Polysaccharides containing carboxylic acid groups may contain uronic acid units, especially hexuronic acid units. Such polysaccharides are widely available in nature.

[0070] The hexuronic acid unit is selected from the group consisting of a galacturonic acid unit, a glucuronic acid unit, in particular a 4-O-methyl-glucuronic acid unit, a glucuronic acid unit, a mannuronic acid unit, and combinations thereof.

[0071] The polysaccharides containing carboxylic acid groups may be branched. Branched polysaccharides containing carboxylic acid groups have the advantage of forming a more compact network than linear polysaccharides, which favors the impermeability of the encapsulation shell, resulting in reduced leakage and higher encapsulation efficiency.

[0072] The carboxylate groups can be at least partially present in the form of the corresponding carboxylate salts, especially the corresponding sodium, potassium, magnesium or calcium carboxylate salts.

[0073] In a specific embodiment of the invention, the polyanion is selected from the group consisting of pectin, gum arabic, alginate, and combinations thereof. In pectins, the carboxylic acid groups can be partially present in the form of the corresponding methyl esters. The percentage of carboxylic acid groups present in the form of the corresponding methyl esters can be between 3% and 95%, preferably between 4% and 75%, more preferably between 5 and 50%. Pectins containing more than 50% of the carboxylic acid groups present in the form of the corresponding methyl esters are called "highly methoxylated". Pectins containing less than 50% of the carboxylic acid groups present in the form of the corresponding methyl esters are called "lowly methoxylated".

[0074] Of the two variants of gum arabic, namely, gum acacia Senegal and gum acacia Seyal, gum acacia Senegal is preferred owing to the high levels of glucuronic acid in gum acacia Senegal.

[0075] The hydrated polymer phase can be a hydrogel. In the context of the present invention, a "hydrogel" is a three-dimensional (3D) network of hydrophilic polymers that can swell in water while maintaining structure due to chemical or physical crosslinking of the individual polymer chains.

[0076] Such hydrogels can be formed at interfaces by several methods, notably by self-assembly of polyelectrolytes around existing interfaces, covalent grafting of preformed hydrogel particles in solution, polymerization of water-soluble monomers initiated at the interface, and phase separation of water-soluble polymers on the interface.

[0077] For the avoidance of doubt, in the context of the present invention, coacervates, especially complex coacervates, especially those crosslinked by covalent bonds, are considered to be hydrogels.

[0078] It has been found that the use of a hydrogel particularly enhances both the deposition and adhesion of the microcapsules onto substrates, especially onto fabrics.

[0079] The hydrogels can be interconnected with the polymeric stabilizer, particularly through functional groups present on the surface of the stabilizer.

[0080] This allows for the hydrogel layer to be locked onto the polymer stabilizer present at the droplet interface, creating a shell composed of a polymer composite instead of just a blend.

[0081] Both hydrogel crosslinking and hydrogel interconnection with the polymeric stabilizer can be performed sequentially or simultaneously.

[0082] In a preferred embodiment of the present invention, the hydrogel is a crosslinked coacervate, particularly a complex coacervate crosslinked with a multifunctional aldehyde, more particularly a bifunctional aldehyde selected from the group consisting of succinaldehyde, glutaraldehyde, glyoxal, benzene-1,2-dialdehyde, benzene-1,3-dialdehyde, benzene-1,4-dialdehyde, piperazine-N,N-dialdehyde, 2,2'-bipyridyl-5,5'-dialdehyde, and combinations thereof. Bifunctional aldehydes are known to be effective crosslinkers for proteins. Bifunctional aldehydes are known to be effective crosslinkers for proteins.

[0083] The hydrogel may be temperature sensitive, in particular having a gelling temperature between 20° C. and 50° C., preferably between 25° C. and 40° C. When such a hydrogel is used, the deposition performance of capsules in the fabric may be improved when the fabric is washed at a temperature higher than the hydrogel gelling temperature.

[0084] The shell can be further stabilized with a stabilizer. Preferably, the stabilizer comprises at least two carboxyl groups. Even more preferably, the stabilizer is selected from the group consisting of citric acid, benzene-1,3,5-tricarboxylic acid, benzene-1,2,4-tricarboxylic acid, 2,5-furandicarboxylic acid, itaconic acid, poly(itaconic acid), and combinations thereof.

[0085] In one embodiment, the shell may comprise a complex coacervate formed from at least one protein and at least one polysaccharide. Such core-shell capsules have proven suitable for benefit agent encapsulation and are described, for example, in WO 1996 / 020612 A1, WO 2001 / 03825 A1 or WO 2015 / 150370 A1.

[0086] Cross-linking at least one protein with a first cross-linking agent followed by addition of at least one polysaccharide to form a complex coacervate is described in WO 2021 / 239742 A1.

[0087] In one embodiment, the shell of the microcapsule is as described in WO 2023 / 020883 A1.

[0088] In one embodiment, the shell of the microcapsule can be made from a biodegradable or non-biodegradable material, hi one embodiment, the microcapsule is made from a biodegradable material.

[0089] In a preferred embodiment of the present invention, the volume median diameter Dv(50) of the multiple core-shell microcapsules is between 1 and 100 μm, preferably between 5 and 75 μm, more preferably between 8 and 60 μm, and even more preferably between 10 and 30 μm. Microcapsules having a volume median diameter in the range of 10 to 30 μm exhibit optimal deposition on a variety of substrates, such as fabrics and hair.

[0090] The resulting encapsulation composition, presented in the form of a slurry of microcapsules suspended in an aqueous suspension medium, may be directly incorporated into a consumer product base. Optionally, however, the slurry may be dried to present the encapsulation composition in the form of a dry powder. Drying of the slurry of microcapsules is conventional and may be carried out according to techniques known in the art, such as spray drying, evaporation, freeze drying, or using a drying agent. Typically, as is conventional in the art, the dried microcapsules are dispersed or suspended in a suitable powder, such as powdered silica, which may act as a bulking agent or flow aid. Such a suitable powder may be added to the encapsulation composition before, during, or after the drying step.

[0091] In particular, the drying process may be accompanied by an additional encapsulation process, where additional functional material is encapsulated in additional encapsulation material. For example, the slurry to be dried may contain at least one non-encapsulated functional material and at least one water-soluble encapsulation material in addition to the core-shell microcapsules obtained in the process according to the present invention, and the non-encapsulated functional material in the core-shell microcapsules is encapsulated in the water-soluble encapsulation material during drying. Typically, the at least one water-soluble encapsulation material comprises at least one hydrocolloid, such as starch octenyl succinate and gum acacia. The hydrocolloid protects and stabilizes the dispersion of the non-encapsulated material in the aqueous phase of the slurry, and is formed around or together with the core-shell microcapsules upon drying.

[0092] The encapsulated functional material in the core-shell microcapsules may include a first fragrance, while the functional material encapsulated in the water-soluble encapsulating material may include a second fragrance, where the first and second fragrances may be the same or different.

[0093] Combining at least two encapsulation processes has the advantage of providing different mechanisms for releasing the functional material, for example a combination of moisture-induced and mechanical stress-induced release.

[0094] The drying step may also be accompanied or followed by a mechanical or thermal treatment, such as spheronization, granulation, extrusion, etc.

[0095] In the microcapsule composition according to the present invention, the proportion of the benefit agent may be from about 10 to about 50 wt.-%, preferably from about 20 to about 47.5 wt.-%, and more preferably from about 30 to about 45 wt.-%, based on the total weight of the microcapsule composition.

[0096] The proportion of the microcapsule composition as described herein above may be from about 1 wt.-% to about 30 wt.-%, preferably from about 1.5 wt.-% to about 20 wt.-%, more preferably from about 2 wt.-% to about 10 wt.-%, based on the total weight of the solid composition.

[0097] Benefit Agent The benefit agents contained in the core may be selected from the group consisting of fragrance ingredients, bioactive agents, substrate enhancers, enzymes, dyes and pigments, and combinations thereof.

[0098] In a specific embodiment of the invention, the core comprises at least one fragrance ingredient. Comprehensive lists of fragrance ingredients that can be encapsulated according to the invention can be found in perfumery literature, for example "Perfume & Flavor Chemicals", S. Arctander (Allured Publishing, 1994). The encapsulated perfume according to the invention preferably comprises a fragrance ingredient 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)hexyl cycloacetate); ALDEHYDE C 10 DECYLIC (decanal); ALDEHYDE C 11 MOA (2-methyldecanal); ALDEHYDE C 11 UNDECYLENIC (undec-10-enal); ALDEHYDE C 110 UNDECYLIC (undecanal); ALDEHYDE C 12 LAURIC (dodecanal); ALDEHYDE C 12 MNA PURE (2-methylundecanal); ALDEHYDE C 8 OCTYLIC (octanal); ALDEHYDE C 9 ISONONYLIC(3,5,5-TRIMETHYLHEXANAL);ALDEHYDE C 9 NONYLIC FOOD GRADE(NONANAL);ALDEHYDE C 90 NONENYLIC((E)-NONA-2-ENAL);ALDEHYDE ISO C 11((E)-UNDEC-9-ENAL);ALDEHYDE MANDARINE((E)-DODECA-2-ENAL);ALLYL AMYL GLYCOLATE(PROP-2-ENYL 2-(3-METHYLBUTOXY)ACETATE);ALLYL CAPROATE(PROP-2-ENYL HEXANOATE);ALLYL CYCLOHEXYL PROPIONATE(PROP-2-ENYL 3-CYCLOHEXYLPROPANOATE);ALLYL OENANTHATE(PROP-2-ENYLHEPTANOATE);AMBER CORE(1-((2-(tert-butyl)cyclohexyl)oxy)butan-2-ol);AMBERKETAL (3,8,8,11a-tetramethyldodecahydro-1H-3,5a-epoxynaphtho[2,1-c]oxepin);AMBERMAX (1,3,4,5,6,7-hexahydro-beta,1,1,5,5-pentamethyl-2H-2,4a-methanonaphthalene-8-ethanol);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 BUTYRATE (pentyl butanoate);AMYL CINNAMIC ALDEHYDE ((Z)-2-benzylidene heptanal);AMYL SALICYLATE(PENTYL 2-HYDROXYBENZOATE);ANETHOLE SYNTHETIC((E)-1-METHOXY-4-(PROP-1-EN-1-YL)BENZENE);ANISYL ACETATE(4-METHOXYBENZYL ACETATE);APHERMATE(1-(3,3-DIMETHYLCYCLOHEXYL)ETHYL FORMATE);AUBEPINE PARA CRESOL(4-METHOXYBENZALDEHYDE);AURANTIOL((E)-METHYL 2-((7-HYDROXY-3,7-DIMETHYLOCTYLIDENE)AMINO)BENZOATE);

[0099] BELAMBRE((1R,2S,4R)-2'-ISOPROPYL-1,7,7-TRIMETHYLSPIRO[BICYCLO[2.2.1]HEPTANE-2,4'-[1,3]DIOXANE]);BENZALDEHYDE;BENZYL ACETATE;BENZYL ACETONE;BENZYL BENZOATE;BENZYL SALICYLATE;BERRYFLOR(ETHYL 6-ACETOXYHEXANOATE);BICYCLO NONALACTONE;BOISAMBRENE FORTE((ethoxymethoxy)-cyclododecane);BOISIRIS((1S,2R,5R)-2-ethoxy-2,6,6-trimethyl-9-methylenebicyclo[3.3.1]nonane);BORNEOL CRYSTALS((1S,2S,4S)-1,7,7-trimethylbicyclo[2.2.1]heptan-2-ol);BORNYL ACETATE((2S,4S)-1,7,7-trimethylbicyclo[2.2.1]heptan-2-yl acetate);BOURGEONAL(3-(4-(tert-butyl)phenyl)propanal);BUTYL BUTYRO LACTATE(1-butoxy-1-oxopropan-2-yl butanoate);BUTYL CYCLOHEXYL ACETATE PARA(4-(tert-butyl)cyclohexyl acetate);BUTYL QUINOLINE SECONDARY(2-(2-methylpropyl)quinoline);CAMPHOR SYNTHETIC((1S,4S)-1,7,7-trimethylbicyclo[2.2.1]heptan-2-one);CARVACROL(5-isopropyl-2-methylphenol);CARVONE LAEVO((5R)-2-methyl-5-prop-1-en-2-ylcyclohex-2-en-1-one);CASHMERAN(1,1,2,3,3-pentamethyl-2,3,6,7-tetrahydro-1H-inden-4(5H)-one);CASSYRANE(5-tert-butyl-2-methyl-5-propyl-2H-furan);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);CETONE V((E)-1-(2,6,6-TRIMETHYLCYCLOHEX-2-EN-1-YL)HEPT-1,6-DIEN-3-ONE);CINNAMIC ALCOHOL SYNTHETIC((E)-3-PHENYLPROP-2-EN-1-OL);CINNAMIC ALDEHYDE((2E)-3-PHENYLPROP-2-ENAL);CINNAMYL ACETATE((E)-3-PHENYLPROP-2-EN-1-YL ACETATE);CIS JASMONE((Z)-3-METHYL-2-(PENT-2-EN-1-YL)CYCLOPENT-2-ENONE);CIS-3-HEXENOL((Z)-HEX-3-EN-1-OL);CITRAL TECH((E)-3,7-DIMETHYLOCTA-2,6-DIENAL);CITRATHAL R((Z)-1,1-DIETHOXY-3,7-DIMETHYLOCTA-2,6-DIENE);CITRONELLAL(3,7-DIMETHYLOCTA-6-ENAL);CITRONELLOL EXTRA(3,7-DIMETHYLOCTA-6-EN-1-OL);CITRONELLYL ACETATE(3,7-DIMETHYLOCTA-6-EN-1-YL ACETATE);CITRONELLYL FORMATE(3,7-DIMETHYLOCTA-6-EN-1-YL FORMATE);CITRONELLYL NITRILE(3,7-DIMETHYLOCTA-6-ENE NITRILE);CLONAL(DODECANE NITRILE);CORANOL(4-CYCLOHEXYL-2-METHYLBUTANE-2-OL);COSMONE((Z)-3-METHYLCYCLOTETRADECA-5-ENONE);COUMARIN PURE CRYSTALS(2H-CHROMEN-2-ONE);CRESYL ACETATE PARA((4-METHYLPHENYL) ACETATE);CRESYL METHYL ETHER PARA(1-METHOXY-4-METHYLBENZENE);CUMIN NITRILE(4-ISOPROPYLBENZONITRILE);CYCLAL C(2,4-DIMETHYLCYCLOHEX-3-ENE-1-CARBALDEHYDE);CYCLAMEN ALDEHYDE EXTRA(3-(4-ISOPROPYLPHENYL)-2-METHYLPROPANAL);CYCLOGALBANATE(ALLYL 2-(CYCLOHEXYLOXY)ACETATE);CYCLOHEXYL ETHYL ACETATE(2-CYCLOHEXYL ETHYL ACETATE);CYCLOHEXYL SALICYLATE(CYCLOHEXYL 2-HYDROXYBENZOATE);CYCLOMYRAL(8,8-DIMETHYL-1,2,3,4,5,6,7,8-OCTAHYDRONAPHTHALENE-2-CARBALDEHYDE);CYMENE PARA(1-METHYL-4-PROPAN-2-YLBENZENE);

[0100] DAMASCENONE((E)-1-(2,6,6-trimethylcyclohexa-1,3-dien-1-yl)but-2-en-1-one);DAMASCONE ALPHA((E)-1-(2,6,6-trimethylcyclohexa-2-en-1-yl)but-2-en-1-one);DAMASCONE DELTA(1-(2,6,6-trimethyl-1-cyclohex-3-enyl)but-2-en-1-one);DECALACTONE GAMMA(5-Hexyloxolan-2-one);DECENAL-4-TRANS((E)-Deca-4-enal);DELPHONE(2-Pentylcyclopentanone);DELTA-3 CARENE((1S,6S)-3,7,7-Trimethylbicyclo[4.1.0]hept-3-ene);DIHEXYL FUMARATE(DIHEXYL-BUTA-2-ENEDIOATE);DIHYDRO ANETHOLE(1-METHOXY-4-PROPYLBENZENE);DIHYDRO JASMONE(3-METHYL-2-PENTYLCYCLOPENT-2-ENONE);DIHYDRO MYRCENOL(2,6-DIMETHYLOCTA-7-EN-2-OL);DIMETHYL ANTHRANILATE(METHYL 2-(METHYLAMINO)BENZOATE);DIMETHYL BENZYL CARBINOL DIMETHYL BENZYL CARBINOL(2-METHYL-1-PHENYLPROPAN-2-OL);DIMETHYL BENZYL CARBINYL ACETATE(2-METHYL-1-PHENYLPROPAN-2-YL ACETATE);DIMETHYL BENZYL CARBINYL BUTYRATE(2-METHYL-1-PHENYLPROPAN-2-YL BUTANOAATE);DIMETHYL OCTENONE (4,7-dimethyloct-6-en-3-one);DIMETOL (2,6-dimethylheptan-2-ol);DIPENTENE (1-methyl-4-(prop-1-en-2-yl)cyclohex-1-ene);DIPHENYL OXIDE (oxydibenzene);DODECALACTONE DELTA (6-heptyltetrahydro-2H-pyran-2-one);DODECALACTONE GAMMA (5-octyloxolan-2-one);DODECENAL ((E)-dodec-2-enal);DUPICAL((E)-4-((3aS,7aS)-Hexahydro-1H-4,7-methanoinden-5(6H)-ylidene)butanal;EBANOL((E)-3-methyl-5-(2,2,3-trimethylcyclopent-3-en-1-yl)pent-4-en-2-ol);ESTERLY(ETHYL CYCLOHEXYL CARBOXYLATE);ETHYL ACETATE;ETHYL ACETOACETATE;ETHYL CINNAMATE;ETHYL HEXANOATE;ETHYL LINALOO((E)-3,7-DIMETHYLNONA-1,6-DIEN-3-OL);ETHYL LINALYL ACETATE((Z)-3,7-DIMETHYLNONA-1,6-DIEN-3-YL ACETATE);ETHYL MALTOL(2-ETHYL-3-HYDROXY-4H-PYRAN-4-ONE);ETHYL METHYL-2-BUTYRATE(ETHYL 2-METHYL BUTANATE);ETHYL OCTANOATE(ETHYL OCTANOATE);ETHYL OENANTHATE(ETHYL HEPTANOATE);ETHYL PHENYL GLYCIDATE(ETHYL 3-PHENYLOXIRANE-2-CARBOXYLATE);ETHYL SAFRANATE(ETHYL 2,6,6-TRIMETHYLCYCLOHEXA-1,3-DIENE-1-CARBOXYLATE);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);

[0101] FENCHYL ACETATE((2S)-1,3,3-TRIMETHYLBICYCLO[2.2.1]HEPTANE-2-YL ACETATE);FENCHYL ALCOHOL((1S,2R,4R)-1,3,3-TRIMETHYLBICYCLO[2.2.1]HEPTANE-2-OL);FENNALDEHYDE(3-(4-METHOXYPHENYL)-2-METHYLPROPANAL);FIXAMBRENE(3a,6,6,9a-TETRAMETHYLDODECAHYDRONAPHTHO[2,1-B]FURAN);FIXOLIDE(1-(3,5,5,6,8,8-HEXAMETHYL-5,6,7,8-TETRAHYDRONAPHTHALEN-2-YL)ETHANONE);FLORALOZONE (3-(4-ethylphenyl)-2,2-dimethylpropanal);FLORHYDRAL(3-(3-isopropylphenyl)butanal);FLORIDILE((E)-undec-9-enenitrile);FLOROCYCLENE((3aR,6S,7aS)-3a,4,5,6,7,7a-hexahydro-1H-4,7-methanoinden-6-ylpropanoate);FLOROPAL(2,4,6-trimethyl-4-phenyl-1,3-dioxane);FLOROSA HC(TETRAHYDRO-4-METHYL-2-(2-METHYLPROPYL)-2H-PYRAN-4-OL);FRESKOMENTHE(2-(SEC-BUTYL)CYCLOHEXANONE);FRUCTONE(ETHYL 2-(2-METHYL-1,3-DIOXOLANE-2-YL)ACETATE);FRUITATE((3aS,4S,7R,7aS)-ETHYLOCTAHYDRO-1H-4,7-METHANOINDENE-3a-CARBOXYLATE);FRUTONILE(2-METHYLDECANONITRILE);GALBANONE PURE(1-(5,5-dimethylcyclohex-1-en-1-yl)pent-4-en-1-one);GARDENOL(1-phenylethyl acetate);GARDOCYCLENE((3aR,6S,7aS)-3a,4,5,6,7,7a-hexahydro-1H-4,7-methanoinden-6-yl 2-methylpropanoate);GERANIOL((E)-3,7-dimethylocta-2,6-dien-1-ol);GERANYL ACETATE((E)-3,7-dimethylocta-2,6-dien-1-yl acetate);GERANYL CROTONATE((E)-3,7-dimethylocta-2,6-dien-1-yl but-2-enoate);GERANYL ISOBUTYRATE((E)-3,7-dimethylocta-2,6-dien-1-yl 2-methylpropanoate);GIVESCONE(ethyl 2-ethyl-6,6-dimethylcyclohex-2-enecarboxylate); α-GUAIENE ((1S,4S,7R)-1,4-dimethyl-7-(prop-1-en-2-yl)-1,2,3,4,5,6,7,8-octahydroazulene, neat, α-GUAIENE-containing materials, e.g. patchouli oil, guaiac wood or guaiacan tree; or obtained via biochemical pathways), HABANOLIDE ((E)-oxacyclohexadec-12-en-2-one); HEDIONE (methyl 3-oxo-2-pentylcyclopentane acetate); HELIOTROPINE CRYSTALS(BENZO[d][1,3]DIOXOLE-5-CARBALDEHYDE);HERBANATE((2S)-ETHYL 3-ISOPROPYL BICYCLO[2.2.1]HEPTA-5-ENE-2-CARBOXYLATE);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 BUTYRATE((Z)-HEX-3-EN-1-YL BUTANOAATE);HEXENYL-3-CIS ISOBUTYRATE((Z)-HEX-3-EN-1-YL 2-METHYLPROPANOAATE);HEXENYL-3-CIS SALICYLATE ((Z)-HEX-3-EN-1-YL 2-HYDROXYBENZOATE);HEXYL ACETATE;HEXYL BENZOATE;HEXYL BUTYRATE;HEXYL CINNAMIC ALDEHYDE ((E)-2-BENZYLIDENEOCTANAL);HEXYL ISOBUTYRATE (HEXYL 2-METHYLPROPANOATE);HEXYL SALICYLATE;HYDROXYCITRONELLAL (7-hydroxy-3,7-dimethyloctanal); INDOFLOR(4,4a,5,9b-tetrahydroindeno[1,2-d][1,3]dioxine);INDOLE PURE(1H-indole);INDOLENE(8,8-di(1H-indol-3-yl)-2,6-dimethyloctan-2-ol);IONONE BETA((E)-4-(2,6,6-trimethylcyclohex-1-en-1-yl)but-3-en-2-one);IRISANTHEME((E)-3-methyl-4-(2,6,6-trimethylcyclohex-2-en-1-yl)but-3-en-2-one);IRISONE ALPHA((E)-4-(2,6,6-trimethylcyclohex-2-en-1-yl)but-3-en-2-one);IRONE ALPHA((E)-4-(2,5,6,6-tetramethylcyclohex-2-en-1-yl)but-3-en-2-one);ISO E SUPER(1-(2,3,8,8-tetramethyl-1,2,3,4,5,6,7,8-octahydronaphthalen-2-yl)ethanone);ISOAMYL ACETATE(3-methylbutyl acetate);ISOAMYL BUTYRATE(3-methylbutyl butanoate);ISOBUTYL METHOXY PYRAZINE(2-methylpropyl 3-methoxypyrazine);ISOCYCLOCITRAL(2,4,6-trimethylcyclohex-3-enecarbaldehyde);ISOEUGENOL((E)-2-methoxy-4-(prop-1-en-1-yl)phenol);ISOJASMONE B 11(2-hexylcyclopent-2-en-1-one);ISOMENTHONE DL(2-isopropyl-5-methylcyclohexanone);ISONONYL ACETATE(3,5,5-trimethylhexyl acetate);ISOPROPYL METHYL-2-BUTYRATE(isopropyl 2-methylbutanoate);ISOPROPYL QUINOLINE(6-isopropylquinoline);ISORALDEINE((E)-3-methyl-4-(2,6,6-trimethylcyclohex-2-en-1-yl)but-3-en-2-one);JASMACYCLENE((3aR,6S,7aS)-3a,4,5,6,7,7a-hexahydro-1H-4,7-methanoinden-6-yl acetate);JASMONE CIS((Z)-3-Methyl-2-(pent-2-en-1-yl)cyclopent-2-enone);JASMONYL(3-Butyl-5-methyltetrahydro-2H-pyran-4-yl acetate);JASMOPYRANE FORTE(3-Pentyltetrahydro-2H-pyran-4-yl acetate);JAVANOL((1-Methyl-2-((1,2,2-trimethylbicyclo[3.1.0]hexan-3-yl)methyl)cyclopropyl)methanol);KOAVONE((Z)-3,4,5,6,6-Pentamethylhept-3-en-2-one);LAITONE(8-Isopropyl-1-oxaspiro[4.5]decan-2-one);LEAF ACETAL((Z)-1-(1-ethoxyethoxy)hex-3-ene);LIFFAROME((Z)-hex-3-en-1-yl methyl carbonate);LILIAL(3-(4-(tert-butyl)phenyl)-2-methylpropanal);#N / ALINALOOL(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);

[0102] MAHONIAL((4E)-9-HYDROXY-5,9-DIMETHYL-4-DECENALE);MALTOL(3-HYDROXY-2-METHYL-4H-PYRAN-4-ONE);MALTYL ISOBUTYRATE(2-METHYL-4-OXO-4H-PYRAN-3-YL 2-METHYLPROPANOATE);MANZANATE(ETHYL 2-METHYLPENTANOATE);MAYOL((4-ISOPROPYLCYCLOHEXYL)METHANOL);MEFROSOL(3-METHYL-5-PHENYLPENTANOATE);MELONAL(2,6-DIMETHYLHEPTA-5-ENAL);#N / A#N / AMERCAPTO-8-METHANE-3-ONE(MERCAPTO-PARA-MENTHAN-3-ONE);METHYL ANTHRANILATE(METHYL 2-AMINOBENZOATE);METHYL BENZOATE(METHYL BENZOATE);METHYL CEDRYL KETONE(1-((1S,8aS)-1,4,4,6-TETRAMETHYL-2,3,3a,4,5,8-HEXAHYDRO-1H-5,8a-METHANOAZULEN-7-YL)ETHANONE);METHYL CINNAMATE(METHYL 3-PHENYLPROP-2-ENOATE);METHYL DIANTILIS(2-ETHOXY-4-(METHOXYMETHYL)PHENOL);METHYL DIHYDRO ISOJASMONATE(METHYL 2-HEXYL-3-OXOCYCLOPENTANE-1-CARBOXYLATE);METHYL HEPTENONE PURE(6-METHYLHEPTA-5-EN-2-ONE);METHYL LAITONE(8-METHYL-1-OXASPIRO[4.5]DECAN-2-ONE;METHYL NONYL KETONE(UNDECA-2-ONE);METHYL OCTYNE CARBONATE(METHYL NONA-2-YNOATE);METHYL PAMPLEMOUSSE(6,6-DIMETHOXY-2,5,5-TRIMETHYLHEX-2-ENE);METHYL SALICYLATE(METHYL 2-HYDROXYBENZOATE);MUSCENONE((Z)-3-METHYLCYCLOPENTADECA-5-ENONE);MYRALDENE(4-(4-METHYLPENT-3-EN-1-YL)CYCLOHEX-3-ENECARBALDEHYDE);MYRCENE(7-METHYL-3-METHYLENEOCTA-1,6-DIENE);MYSTIKAL(2-METHYLUNDECANOIC ACID);NECTARYL(2-(2-(4-METHYLCYCLOHEX-3-EN-1-YL)PROPYL)CYCLOPENTANONE);NEOBERGAMATE FORTE (2-methyl-6-methyleneoct-7-en-2-yl acetate); NEOCASPIRENE EXTRA (10-isopropyl-2,7-dimethyl-1-oxaspiro[4.5]Deca-3,6-diene;NEOFOLIONE((E)-methylnon-2-enoate);NEROLEX((2Z)-3,7-dimethylocta-2,6-dien-1-ol);NEROLIDOL((Z)-3,7,11-trimethyldodeca-1,6,10-trien-3-ol);NEROLIDYLE((Z)-3,7,11-trimethyldodeca-1,6,10-trien-3-yl acetate);NEROLINE CRYSTALS(2-ethoxynaphthalene);NEROLIONE(1-(3-methylbenzofuran-2-yl)ethanone);NERYL ACETATE((Z)-3,7-DIMETHYLOCTA-2,6-DIEN-1-YL ACETATE);NIRVANOLIDE((E)-13-METHYLOXACYCLOPENTADECA-10-EN-2-ONE);NONADIENAL((2E,6Z)-NONA-2,6-DIENAL);NONADIENOL-2,6((2Z,6E)-2,6-NONADIEN-1-OL);NONADYL(6,8-DIMETHYLNONAN-2-OL);NONALACTONE GAMMA(5-PENTYLOXOLAN-2-ONE);NONENAL-6-CIS((Z)-NONA-6-ENAL);NONENOL-6-CIS((Z)-NONA-6-EN-1-OL);NOPYL ACETATE(2-(6,6-dimethylbicyclo[3.1.1]hept-2-en-2-yl)ethyl acetate);NYMPHEAL(3-(4-(2-methylpropyl)-2-methylphenyl)propanal);OCTALACTONE DELTA(6-propyltetrahydro-2H-pyran-2-one);METHYL HEXYL KETONE(octan-2-one);ORANGER CRYSTALS(1-(2-naphthalenyl)-ethanone);ORIVONE(4-(tert-pentyl)cyclohexanone);.

[0103] PANDANOL((2-METHOXYETHYL)BENZENE);PARA TERT BUTYL CYCLOHEXYL ACETATE(4-(tert-butyl)cyclohexyl acetate);PARADISAMIDE(2-ETHYL-N-METHYL-N-(m-TOLYL)BUTANIMIDE);PEACH PURE(5-Heptyldihydrofuran-2(3H)-one);PELARGENE(2-METHYL-4-METHYLENE-6-PHENYLTETRAHYDRO-2H-PYRAN);PELARGOL(3,7-DIMETHYLOCTANE-1-OL);PEONILE(2-CYCLOHEXYLIDENE-2-PHENYLACETONITRILE);PETALIA(2-CYCLOHEXYLIDENE-2-(o-TOLYL)ACETONITRILE);PHARAONE(2-CYCLOHEXYLHEPTA-1,6-DIEN-3-ONE);PHENOXY ETHYL ISOBUTYRATE(2-(PHENOXY)ETHYL 2-METHYLPROPANOATE);PHENYL ACETALDEHYDE(2-PHENYL-ETHANAL);PHENYL ETHYL ACETATE(2-PHENYLETHYL ACETATE);PHENYL ETHYL ALCOHOL(2-PHENYLETHYL ETHANOL);PHENYL ETHYL ISOBUTYRATE(2-PHENYLETHYL 2-METHYLPROPANOATE);PHENYL ETHYL PHENYL ACETATE(2-PHENYLETHYL 2-PHENYLETHYL ACETATE);PHENYL PROPYL ALCOHOL(3-PHENYLPROPAN-1-OL);PINENE ALPHA(2,6,6-TRIMETHYLBICYCLO[3.1.1]HEPT-2-ENE);PINENE BETA(6,6-Dimethyl-2-methylenebicyclo[3.1.1]heptane);PINOACETALDEHYDE(3-(6,6-Dimethylbicyclo[3.1.1]hept-2-en-2-yl)propanal);PIVAROSE(2,2-Dimethyl-2-phenylethylpropanoate);POMAROSE((2E,5E)-5,6,7-Trimethylocta-2,5-dien-4-one);POMELOL(2,4,7-Trimethyl-6-octen-1-ol);PRECYCLEMONE B(1-Methyl-4-(4-methylpent-3-en-1-yl)cyclohex-3-enecarbaldehyde);PRENYL ACETATE(3-METHYL-2-BUT-2-EN-1-YL ACETATE);PRUNOLIDE(5-PENTYLDIHYDROFURAN-2(3H)-ONE);RADJANOL SUPER((E)-2-ETHYL-4-(2,2,3-TRIMETHYLCYCLOPENT-3-EN-1-YL)BUTA-2-EN-1-OL);RASPBERRY KETONE(4-(4-HYDROXYPHENYL)BUTA-2-ONE);RHUBAFURAN(2,4-DIMETHYL-4-PHENYLTETRAHYDROFURAN);ROSACETOL(2,2,2-TRICHLORO-1-PHENYLETHYL ACETATE);ROSALVA(DECA-9-EN-1-OL);ROSE OXIDE(4-METHYL-2-(2-METHYLPROP-1-EN-1-YL)TETRAHYDRO-2H-PYRAN);ROSE OXIDE CO(4-methyl-2-(2-methylprop-1-en-1-yl)tetrahydro-2H-pyran);ROSYFOLIA(1-methyl-2-(5-methylhex-4-en-2-yl)cyclopropylmethanol);ROSYRANE SUPER(4-methylene-2-phenyltetrahydro-2H-pyran);SAFRALEINE(2,3,3-trimethyl-1-indanone);SAFRANAL(2,6,6-trimethylcyclohexa-1,3-dienecarbaldehyde);SANDALORE EXTRA(3-methyl-5-(2,2,3-trimethylcyclopent-3-en-1-yl)pentan-2-ol);SCENTAURUS CLEAN(ethyl (Z)-2-acetyl-4-methyltridec-2-enoate);SCENTAURUS JUICY(4-(dodecylthio)-4-methylpentan-2-one);SERENOLIDE(2-(1-(3,3-dimethylcyclohexyl)ethoxy)-2-methylpropyl cyclopropanecarboxylate);SILVANONE SUPRA(cyclopentadecanone, hexadecanolide);SILVIAL(2-methyl-3-[4-(2-methylpropyl)phenyl]propanal);SPIROGALBANONE(1-(spiro[4.5]dec-6-en-7-yl)pent-4-en-1-one);STEMONE((E)-5-methylheptan-3-one oxime);STYRALLYL ACETATE(1-phenylethyl acetate);SUPER MUGUET ((E)-6-ethyl-3-methyloct-6-en-1-ol);SYLKOLIDE ((E)-2-((3,5-dimethylhex-3-en-2-yl)oxy)-2-methylpropyl cyclopropanecarboxylate);

[0104] TERPINENE ALPHA(1-METHYL-4-PROPAN-2-YL CYCLOHEXA-1,3-DIENE);TERPINENE GAMMA(1-METHYL-4-PROPAN-2-YL CYCLOHEXA-1,4-DIENE);TERPINEOL(2-(4-METHYLCYCLOHEX-3-EN-1-YL)PROPAN-2-OL);TERPINEOL ALPHA(2-(4-METHYLCYCLOHEX-3-ENYL)PROPAN-2-OL);TERPINEOL PURE(2-(4-METHYLCYCLOHEX-3-ENYL)PROPAN-2-OL);TERPINOLENE(1-METHYL-4-(PROPAN-2-YLIDENE)CYCLOHEXA-1-ENE);TERPINYL ACETATE(2-(4-METHYLCYCLOHEX-3-ENYL)PROPAN-2-YL ACETATE);TETRAHYDRO LINALOOL(3,7-DIMETHYLOCTANE-3-OL);TETRAHYDRO MYRCENOL(2,6-DIMETHYLOCTANE-2-OL);THIBETOLIDE(OXACYCLOHEXADECAN-2-ONE);THYMOL(2-ISOPROPYL-5-METHYLPHENOL);TOSCANOL(1-(CYCLOPYLMETHYL)-4-METHOXYBENZENE);TRICYCLAL(2,4-DIMETHYLCYCLOHEXA-3-ENECARBALDEHYDE);TRIDECENE-2-NITRILE((E)-TRIDECENENITRILE);TRIFERNAL(3-PHENYLBUTANAL);TROPIONAL(3-(BENZO[d][1,3]DIOXO) 5-(2-METHYL-5-YL)-2-METHYLPROPANAL;TROPIONAL(3-(BENZO[d][1,3]DIOXOL-5-YL)-2-METHYLPROPANAL);UNDECATRIENE((3E,5Z)-UNDECA-1,3,5-TRIENE);UNDECAVERTOL((E)-4-METHYL-3-ENE-5-OL);VANILLIN(4-HYDROXY-3-METHOXYBENZALDEHYDE);VELOUTONE(2,2,5-TRIMETHYL-5-PENTYL CYCLOPENTANONE);VELVIONE((Z)-CYCLOHEXADECANE-5-ENONE);VIOLET NITRILE((2E,6Z)-NONA-2,6-DIENENITRILE);YARA YARA(2-METHOXYNAPHTHALENE);ZINARINE(2-(2,4-DIMETHYLCYCLOHEXYL)PYRIDINE);BOIS CEDRE ESS CHINE;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;YLANG ECO ESSENCE and combinations thereof. These fragrance ingredients, thanks to their favorable lipophilicity and olfactory performance, are particularly suitable for obtaining stable and performant microcapsules;

[0105] In a particularly preferred embodiment of the present invention, more than 75 wt.-%, preferably more than 80 wt.-%, even more preferably more than 85 wt.-%, even more preferably more than 90 wt.-%, even more preferably more than 95 wt.-% of the fragrance ingredients are biodegradable and are 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)-UNDECAN-9-ENAL);ALLYL AMYL GLYCOLATE(PROP-2-ENYL 2-(3-METHYLBUTOXY)ACETATE);ALLYL CYCLOHEXYL PROPIONATE(PROP-2-ENYL 3-CYCLOHEXYLPROPANOATE);ALLYL OENANTHATE(PROP-2-ENYLHEPTANOATE);AMBRETTOLIDE((Z)-OXACYCLOHEPTADECA-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]Heptan-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-YL BUTANATE);DIMETOL(2,6-DIMETHYLHEPTANE-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 HEXANOATE);ETHYL METHYL-2-BUTYRATE(ETHYL 2-METHYL BUTYRATE);ETHYL MALTOL(2-ETHYL-3-HYDROXY-4H-PYRAN-4-ONE);ETHYL OENANTHATE(ETHYL HEPTANOATE);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);

[0106] FIXAMBRENE(3a,6,6,9a-tetramethyldodecahydronaphtho[2,1-b]furan);FLORHYDRAL(3-(3-isopropylphenyl)butanal);FLORIDILE((E)-undec-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)-OXACYCLOHEXADECA-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(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)but-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-dienenitrile);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-PHENYLPENTAN-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-METHYLHEPTA-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)-methylnon-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-NAPHTHYL)-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-octen-1-ol);PRENYL ACETATE(3-methylbut-2-en-1-yl acetate);PRUNOLIDE(5-pentyldihydrofuran-2(3H)-one);RASPBERRY KETONE(4-(4-hydroxyphenyl)butan-2-one);ROSALVA(dec-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-(dodecylthio)-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-methylpropylcyclopropanecarboxylate);. 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-ENE NITRILE);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 (EUCALYPTUS OIL);GALBANUM ESS (GALBANUM OIL);GIROFLE FEUILLES ESS RECT MADAGASCAR (Clove Oil);LAVANDIN GROSSO OIL FRANCE ORPUR (LAVANDIN OIL);MANDARIN OIL WASHED COSMOS (MANDARIN OIL);ORANGE TERPENES (ORANGE TERPENES);PATCHOULI ESS INDONESIE (PATCHOULI OIL);YLANG ECO ESSENCE (IRANOUS OIL);and combinations thereof. These ingredients have the advantage of providing microcapsules that are particularly sustainable.

[0107] The core composition may also contain at least one fragrance precursor (meaning a material capable of releasing a fragrance component by means of a stimulus such as a change in temperature, the presence of an oxidizing agent, the action of an enzyme or the action of light.) Such fragrance precursors are well known in the art.

[0108] Bleach-free laundry disinfectant base Bleach-free laundry disinfectants are commercially available as clear liquids, colorless or lightly colored, unscented or lightly scented, etc. These compositions are typically water-based.

[0109] The antimicrobial ingredients used in bleach-free laundry disinfectants generally belong to a class of compounds known as quaternary ammonium compounds (QACs or "quats"). Examples of such compounds include dimethyl ammonium chloride, dimethyl benzyl ammonium chloride (ADBAC), alkyl C12-16 dimethyl benzyl ammonium chloride, dicapryl / dicaprylyldimonium chloride (mixed dialkyl (C8-C10) dimethyl ammonium chloride), and the like. Quaternary ammonium compounds are cationic surfactants (surface active agents) that combine bactericidal and virucidal activity with good cleaning power.

[0110] Quaternary ammonium cations, also known as quats, are + It is a positively charged polyatomic ion of the structure 4, where R is an alkyl or aryl group. The ammonium ion (NH + 4) and unlike primary, secondary, or tertiary ammonium cations, quaternary ammonium cations are permanently charged regardless of the pH of the solution.

[0111] Quaternary ammonium compounds are widely used in fabric softener or conditioner compositions. Modern fabric softeners are based on salts of quaternary ammonium cations in which fatty acids are linked to the quaternary center through ester bonds (ester quats). Typically, the cation contains one or two long alkyl chains derived from fatty acids linked to ethoxylated ammonium salts. Examples of such QACs are diethyl ester dimethyl ammonium chloride (DEEDMAC), triethanolamine quats (TEAQ), dihydrogenated tallowamidoethyl hydroxyethylmonium methosulfate, Hamburg ester quats (HEQ), etc. These QACs are believed to electrostatically bind to negatively charged groups on the surface of fibers and move hydrophobic groups away from the fibers, thereby reducing interfiber friction and imparting softness. The pH of these systems is typically below 4. To exhibit softening activity, a typical formulation should contain about 4 wt% to about 6 wt% QAC. These compounds are generally not soluble in water, so to obtain a homogeneous appearing laundry softener, high shear mixing is required to suspend the ingredients, and the final product appears opaque.

[0112] On the other hand, quaternary ammonium compounds with antimicrobial roles contain long alkyl chains and are believed to act by disrupting the cell membrane or viral envelope of microorganisms. In disinfecting compositions, about 1 wt% to about 4 wt% of quats is needed to achieve disinfection. The final product does not require high shear mixing and tends to be a clear system. The pH of these systems is usually 7 or higher.

[0113] In one embodiment, the quaternary ammonium compound used in the bleach-free laundry disinfectant composition is dimethylammonium chloride of formula I, where R and R are independently C-C alkyl groups such as octyl, decyl, dodecyl, and mixtures thereof. 16 (It is alkyl) NMe2R1R2 + Cl - Formula I; Alkyldimethylbenzylammonium chlorides of formula II, where n=8, 10, 12, 14, 16, 18 and mixtures thereof. [ka] Formula II; and mixtures thereof is selected from the group consisting of:

[0114] In one embodiment, the quaternary ammonium compound used in the bleach-free laundry disinfectant composition is selected from the group consisting of dimethyl ammonium chloride of formula I, where R1 and R2 are independently octyl, decyl, dodecyl, and mixtures thereof, such as didecyl dimethyl ammonium chloride (DDAC) or dicapryl / dicaprylyl dimonium chloride (mixed dialkyl (C8-C10) dimethyl ammonium chloride); alkyl dimethyl benzyl ammonium chloride of formula II, where n=8, 10, 12, 14, 16, 18, and mixtures thereof, such as ADBAC, which is a mixture of alkyl benzyl dimethyl ammonium chlorides, where the alkyl group has various even alkyl chain lengths, such as alkyl C12-16 dimethyl benzyl ammonium chloride; and mixtures thereof.

[0115] In one embodiment, quaternary ammonium compounds are used in bleach-free laundry disinfectant compositions at levels of from about 0.5% to about 4.5% by weight, optionally from about 1% to about 4% by weight.

[0116] In addition to antimicrobial agents, laundry disinfectant compositions may contain surfactants such as C12-16 ethoxylated alcohols, rheology modifiers such as hydroxyethyl cellulose, anti-redeposition agents such as syrups, hydrolyzed starches, polymers, solubilizers such as glyoxal, and dyes.

[0117] Commercially available bleach-free laundry disinfectants may also have pH stabilizers present, such as sodium carbonate and sodium bicarbonate. The pH of commercial laundry disinfectants generally ranges from neutral (pH about 7) to basic (pH about 10).

[0118] In one embodiment, the bleach-free laundry disinfectant base has a pH of about 7 to about 10. Commercially available bleach-free laundry disinfectants also contain varying amounts of alcohol, such as ethanol and isopropanol. In one embodiment, the bleach-free laundry disinfectant base includes an alcohol, such as ethanol or isopropanol. In one embodiment, the bleach-free laundry disinfectant base is a commercially available fragrance-free Lysol laundry disinfectant base. In one embodiment, the bleach-free laundry disinfectant base is commercially available Clorox laundry disinfectant.

[0119] BLEACH-FREE LAUNDRY SANITIZER COMPOSITION COMPRISING MICROCAPSULE COMPOSITION - Patent application The relatively harsh environment provided by consumer product bases, such as those with acidic or basic pH or those containing organic solvents such as alcohol, can degrade the shell walls of the microcapsules and accelerate premature diffusion of the core through the shell walls via leakage.Due to their excellent solvent properties, it is common in the industry to use alcohols, such as ethanol and isopropanol, as solvents to extract fragrance from encapsulated fragrance compositions.

[0120] Similarly, consumer product bases having a pH greater than 8, such as liquid laundry detergents, are known to act as a medium for extracting fragrance from the microcapsules of an encapsulated fragrance, resulting in high levels of fragrance leaching from the capsules into the consumer product base, with the effect of disrupting the expected release profile of the fragrance.

[0121] Generally, bleach-free laundry disinfectant bases have a pH of 7 or greater and use the above-mentioned quaternary ammonium surfactants at levels of about 1 wt% to about 4 wt%. Most bleach-free laundry disinfectant bases also contain a certain amount of alcohol. Thus, when core-shell microcapsules encapsulating benefit agents are incorporated into such consumer product bases, their stability and performance are expected to be adversely affected by the presence of alcohol. Similarly, the stability and performance of core-shell microcapsules encapsulating benefit agents are expected to be adversely affected by such consumer product bases having a pH greater than about 7.

[0122] However, Applicant has surprisingly and unexpectedly discovered that a mixture of a bleach-free laundry disinfectant base and at least one microcapsule composition comprising a polymer encapsulating a fragrance, wherein the fragrance is encapsulated in a core-shell microcapsule comprising a core and a shell surrounding the core, said mixture can simultaneously disinfect laundry and provide a consumer perception of fragrance throughout the wash and rinse cycles, at the moment the laundry is removed from the washing machine, during drying, and after the laundry is dry.

[0123] In one embodiment, the level of fragrance in the resulting bleach-free laundry disinfectant composition comprising at least one microcapsule composition comprising a polymer encapsulating a fragrance is from about 0.02% to about 0.40%, optionally from about 0.05% to about 0.25%, and optionally from about 0.10% to about 0.13% neat oil equivalent of fragrance. In one embodiment, the laundry disinfectant composition includes at least one alcohol, such as ethanol or isopropanol. In one embodiment, the laundry disinfectant composition has a pH of about 7 to about 10. In one embodiment, the microcapsules used in the bleach-free laundry disinfectant are polyurea capsules. In one embodiment, the polyurea microcapsules are as described in WO 2016 / 071149A1.

[0124] In one embodiment, the bleach-free laundry disinfectant composition comprises a fragrance-free Lysol laundry disinfectant base comprising a quaternary ammonium compound selected from the group consisting of dimethyl ammonium chloride of formula I, where R1 and R2 are independently octyl, decyl, dodecyl, alkyl dimethyl benzyl ammonium chloride of formula II, where n=8, 10, 12, 14, 16, 18, and mixtures thereof; and polyurea microcapsules (optionally polyurea microcapsules as described in WO 2016 / 071149A1). Optionally, the level of the quaternary ammonium compound in the bleach-free laundry disinfectant composition is about 1 wt% to about 4 wt%. Optionally, the level of fragrance in the bleach-free laundry disinfectant composition is about 0.10% to 0.13% in terms of neat oil equivalent of fragrance.

[0125] In one embodiment, the bleach-free laundry disinfectant composition comprises a quaternary ammonium compound selected from the group consisting of dimethyl ammonium chloride of formula I, where R1 and R2 are independently octyl or decyl, e.g., dicapryl / dicaprylyldimonium chloride (mixed dialkyl (C8-C10) dimethyl ammonium chloride), alkyl dimethyl benzyl ammonium chloride of formula II, where n=8, 10, 12, 14, 16, 18, e.g., alkyl C12-16 dimethyl benzyl ammonium chloride, and mixtures thereof; and polyurea microcapsules (optionally WO Optionally, the level of quaternary ammonium compound in the bleach-free laundry disinfectant composition is about 1 wt% to about 4 wt%. Optionally, the level of fragrance in the bleach-free laundry disinfectant composition is about 0.10% to 0.13% neat oil equivalent of fragrance.

[0126] In one embodiment, the microcapsules used in the bleach-free laundry disinfectant are microcapsules comprising a hydrated polymer phase and a polymeric stabilizer, as described above. In one embodiment, the polymeric stabilizer is formed by the reaction of a bimodal aminosilane, such as bis(3-(triethoxysilyl)propyl)amine, with 2-ethylpropane-1,2,3-triyltris((3-(isocyanatomethyl)phenyl)carbamate). In one embodiment, the hydrated polymer phase is a complex coacervate formed from a polycation, such as gelatin, casein, albumin, polylysine, soy protein, pea protein, rice protein or hemp protein, preferably type B gelatin; and a polyanion, such as pectin, gum arabic and alginic acid, preferably pectin.

[0127] In one embodiment, the bleach-free laundry disinfectant composition comprises a fragrance-free Lysol laundry disinfectant base comprising a quaternary ammonium compound selected from the group consisting of dimethyl ammonium chloride of formula I, where R1 and R2 are independently octyl, decyl, dodecyl, alkyl dimethyl benzyl ammonium chloride of formula II, where n=8, 10, 12, 14, 16, 18, and mixtures thereof; and a microcapsule comprising the hydrated polymer phase and polymer stabilizer described above. Optionally, the level of the quaternary ammonium compound in the bleach-free laundry disinfectant composition is about 1 wt% to about 4 wt%. Optionally, the level of the fragrance in the bleach-free laundry disinfectant composition is about 0.10% to 0.13% in terms of neat oil equivalent of the fragrance.

[0128] In one embodiment, the bleach-free laundry disinfectant composition comprises a Clorox laundry disinfectant base comprising a quaternary ammonium compound selected from the group consisting of dimethyl ammonium chloride of formula I, where R1 and R2 are independently octyl or decyl, e.g., dicapryl / dicaprylyldimonium chloride (mixed dialkyl (C8-C10) dimethyl ammonium chloride), alkyl dimethyl benzyl ammonium chloride of formula II, where n=8, 10, 12, 14, 16, 18, e.g., alkyl C12-16 dimethyl benzyl ammonium chloride, and mixtures thereof; and a microcapsule comprising a hydrated polymer phase and a polymer stabilizer as described above. Optionally, the level of the quaternary ammonium compound in the bleach-free laundry disinfectant composition is about 1 wt% to about 4 wt%. Optionally, the level of fragrance in the bleach-free laundry disinfectant composition is about 0.10% to 0.13% of the fragrance neat oil equivalent.

[0129] In one embodiment, the microcapsules used in the bleach-free laundry disinfectant are microcapsules comprising complex coacervates formed from at least one protein and at least one polysaccharide. In one embodiment, the microcapsules comprising complex coacervates are as described in WO 2021 / 239742A1.

[0130] In one embodiment, the bleach-free laundry disinfectant composition comprises a fragrance-free Lysol laundry disinfectant base comprising a quaternary ammonium compound selected from the group consisting of dimethyl ammonium chloride of formula I, where R1 and R2 are independently octyl, decyl, dodecyl, alkyl dimethyl benzyl ammonium chloride of formula II, where n=8, 10, 12, 14, 16, 18, and mixtures thereof; and a microcapsule comprising a complex coacervate formed from at least one protein and at least one polysaccharide (optionally a microcapsule described in WO 2021 / 239742A1). Optionally, the level of the quaternary ammonium compound in the bleach-free laundry disinfectant composition is about 1 wt% to about 4 wt%. Optionally, the level of the fragrance in the bleach-free laundry disinfectant composition is about 0.10% to 0.13% in terms of neat oil equivalent of the fragrance.

[0131] In one embodiment, the bleach-free laundry disinfectant composition comprises a Clorox laundry disinfectant base comprising a quaternary ammonium compound selected from the group consisting of dimethyl ammonium chloride of formula I, where R1 and R2 are independently octyl or decyl, e.g., dicapryl / dicaprylyldimonium chloride (mixed dialkyl (C8-C10) dimethyl ammonium chloride), alkyl dimethyl benzyl ammonium chloride of formula II, where n=8, 10, 12, 14, 16, 18, e.g., alkyl C12-16 dimethyl benzyl ammonium chloride, and mixtures thereof; and microcapsules comprising complex coacervates formed from at least one protein and at least one polysaccharide (optionally WO Optionally, the level of quaternary ammonium compound in the bleach-free laundry disinfectant composition is from about 1 wt% to about 4 wt%. Optionally, the level of fragrance in the bleach-free laundry disinfectant composition is from about 0.10% to 0.13% neat oil equivalent of fragrance.

[0132] In one embodiment, the laundry disinfectant composition further comprises a laundry care additive. The laundry care additive can be selected from stain removal compounds, fabric conditioning compounds, wrinkle reducing compounds, color enhancers, and combinations thereof. Optionally, the laundry care additive is a fabric conditioning compound.

[0133] Method of production In one aspect, the present invention provides a method of making a bleach-free laundry disinfectant composition containing an encapsulated fragrance. The method includes mixing a composition including a core-shell encapsulated benefit agent with a bleach-free laundry disinfectant base composition to produce a bleach-free laundry disinfectant composition. The microcapsule composition employed may be in the form of a liquid slurry, powder, granules, flakes, or extrudate.

[0134] The microcapsule composition and the non-bleach laundry disinfectant base are as described above. The fragrance levels in the bleach-free laundry disinfectant compositions are as defined above.

[0135] use In yet another aspect, the present invention relates to the use of the encapsulated composition as described herein above for improving the perception or enhancing the performance of the bleach-free laundry disinfectant composition described above.

[0136] The invention will now be further described by way of the following non-limiting examples: Example 1: Preparation of fragrance encapsulated microcapsule slurries with various chemical cores The following microcapsules were prepared as shown in Table 1.

[0137] [Table 1]

[0138] The capsules of Example 1.4 were prepared as follows. a) A core composition was prepared by mixing 0.7 g of bimodal aminosilane (bis(3-triethoxysilylpropyl)amine), 0.48 g Takenate D-110N (ex Mitsui) and 38.5 g of the fragrance composition; b) The core composition obtained in step a) was emulsified in a mixture of 1.0 g high methoxylated grade pectin (type APA 104, ex Roeper) in 73.3 g water using a 300 ml reactor and a cross beam agitator with a pitched beam operating at an agitation speed of 600 rpm and a temperature of 25+ / -2°C for 10 minutes. c) While maintaining stirring as in step b), the temperature of the system was raised to 85+ / -2°C over 4 hours, 0.3 g of trimesic acid (1,3,5-benzenetricarboxylic acid) was added, and the system was maintained at this temperature for 1.3 h; d) While maintaining stirring as in step b), the system was slowly cooled to 40° C. over 2.25 hours; e) While maintaining stirring as in step b), 10 g of 10% gelatin solution in water was added at a temperature of 40+ / -2°C; f) The system was slowly cooled to 40° C. over 2.25 hours while maintaining stirring as in step b); g) while maintaining stirring as in step b), when the system reaches a temperature of 10° C., add 0.02 g of 50 wt.-% aqueous glutaraldehyde solution and maintain the system at this temperature for 1 hour to form a slurry of core-shell microcapsules; h) The slurry of core-shell capsules obtained in step f) is finally allowed to stabilize at room temperature.

[0139] Example 2: Evaluation of the stability of encapsulated fragrances in a commercial bleach-free laundry sanitizer base Two commercially available bleach-free laundry disinfectant bases were used in the study. Fragrance-free Lysol laundry sanitizer Clorox Laundry Sanitizer The compositions and pH of the two bleach-free laundry disinfectant bases are shown in Table 2.

[0140] [Table 2]

[0141] The stability of the microcapsules of Examples 1.1-1.5 in each of two bleach-free laundry disinfectant bases A and B was tested as follows.

[0142] I. A slurry of microcapsules prepared according to Examples 1.-1.5 was incorporated into a disinfectant base; the resulting samples were stored at RT (room temperature, approximately 25°C) and 40°C. II. The laundry was first washed+dried and the pre-rub and post-rub performance was recorded by a sensory panel. III. Samples of the bleach-free laundry disinfectant containing microcapsules were removed from storage and used in washes after 2, 4, 8 and 12 weeks; performance over time and temperature was monitored by a sensory panel as described in Step II.

[0143] I. The slurries from Examples 1.1-1.5 were mixed into each of two bleach-free laundry disinfectant bases, A and B, such that the resulting bleach-free laundry disinfectant had fragrance levels of approximately 0.10%-0.13% neat oil equivalent. The bleach-free disinfectant base was added to a beaker and the capsule slurry was mixed slowly for 10 minutes using an overhead mixer with a four-pronged propeller or magnetic stir bar (rpm set to provide a vortex). Samples were stored under appropriate stable conditions until required.

[0144] II. The resulting bleach-free laundry disinfectant was tested on laundry as follows: - GE Washer and Dryer Stackable Model # GUD27ESSJ1WW - Small load, hot wash, cold rinse, 15-25 towels (depending on test) - 30 grams of Tide Free & Gentle liquid detergent The laundry disinfectant according to the invention or the laundry disinfectant base alone (for comparison) was introduced during the rinse cycle as follows: - 140 grams of Lysol laundry disinfectant (A) (the basis of the composition according to the invention); or - 100 grams of Clorox disinfectant (B) (the basis of the composition according to the invention) - Machine dry the towels: 45 minutes on normal setting Each panelist evaluated one towel. n = number of panelists - The towels were rated using the intensity scale shown below. - Each towel was evaluated before scrubbing, then 3 times after scrubbing, and after scrubbing. - Measurements were taken immediately after washing and drying

[0145] III. Time and temperature monitoring: - Samples of a bleach-free laundry disinfectant containing microcapsules were stored at room temperature and at 40°C. After 2, 4, 8 and 12 weeks of storage, machine dried towels were obtained as described above. - The evaluation was performed as described in Step II.

[0146] Intensity scale: 0- no fragrance, 1- very weak, 2- weak, 3- quite weak, 4- relatively weak, 5- moderate, 6- relatively strong, 7- quite strong, 8- strong, 9- very strong, 10- extremely strong. The results of these evaluations are shown in Table 2.

[0147] [Table 3] Upper: RT; Lower: 40℃ a n=10; b n=9; c n=8; d n=11 (n=number of panelists) m Fragrance dosage: Neat oil equivalent = 0.13% nFragrance dosage: Neat oil equivalent = 0.10%

[0148] As expected, laundry disinfectant bases A or B did not show pre-rub or post-rub boost at any time or at any temperature (both pre-rub and post-rub values ​​below 2.2).

[0149] All microcapsules tested performed well with both disinfectant bases for at least 8 weeks, with some maintaining their post-rub boost even after 12 weeks at both room temperature and 40° C. Melamine formaldehyde microcapsules are observed to begin to lose some post-rub burst strength at 8 weeks and to fail to burst at 12 weeks when stored at 40° C.

[0150] Surprisingly, for laundry disinfectants containing microcapsules of examples 1.3 (polyurea-based capsules), 1.4 (hydrated polymer phase and polymeric stabilizer microcapsules) and 1.5 (microcapsules comprising complex coacervates formed from at least one protein and at least one polysaccharide), excellent results were observed even after 8 or 12 weeks at both room temperature and 40°C in both laundry disinfectant bases.

[0151] Most notably, the post-rubbing performance of the microcapsules of Example 1.5 remained quite strong in both laundry disinfectant bases for over 12 weeks at room temperature. The microcapsules of Example 1.4 maintained quite strong performance in Clorox laundry disinfectant base (B) for at least 8 weeks at room temperature.

[0152] In general, as expected, the post-rubbing performance of most microcapsules at room temperature appears to be higher than at 40°C, and in both laundry disinfectant bases, with the exception of the microcapsules of Example 1.3, which performed similarly well at both temperatures, with less than about 20% loss in post-rubbing performance over 12 weeks.

Claims

1. A bleach-free laundry disinfectant composition comprising at least one microcapsule composition containing a polymer encapsulating a beneficial agent, wherein the beneficial agent is encapsulated within a core-shell microcapsule comprising a core and a shell surrounding the core.

2. The composition according to claim 1, wherein the microcapsule shell comprises a melamine-formaldehyde polymer, a urea-formaldehyde polymer, a polyurea or polyurethane polymer, a polyamide, a polyacrylate, a polycarbonate, a polymer stabilizer formed by a combination of a polymer surfactant and at least one aminosilane, a composite coacervate formed by crosslinking with at least one protein first crosslinking agent and at least one polysaccharide, or a hydrated polymer, and a polymer stabilizer formed by the reaction of an aminosilane and a polyfunctional isocyanate.

3. The bleach-free laundry disinfectant composition according to claim 1, wherein the microcapsule shell comprises a polyurea polymer, a polymer stabilizer formed by a combination of a polymer surfactant and at least one aminosilane, a composite coacervate or hydrated polymer formed by crosslinking of at least one protein with a first crosslinking agent and at least one polysaccharide, and a polymer stabilizer formed by the reaction of aminosilane with a polyfunctional isocyanate.

4. The bleach-free laundry disinfectant composition according to claim 1, wherein the beneficial agent is selected from the group consisting of fragrance components, bioactive agents, substrate enhancers, enzymes, dyes and pigments, and combinations thereof, and optionally the beneficial agent is a fragrance component.

5. The bleach-free laundry disinfectant composition according to claim 4, wherein the fragrance level in the bleach-free laundry disinfectant composition is about 0.02% to about 0.40%, optionally about 0.05% to about 0.25%, and optionally about 0.10% to about 0.13% in terms of neat oil equivalents of fragrance.

6. The composition contains dimethylammonium chloride of formula I (wherein R １ and R 2 This is independently C such as octyl, decyl, dodecyl, preferably octyl or decyl. ８ -C １６ (Alkyl compounds, and mixtures thereof) NMe ２ R １ R ２ ＋ Cl － Formula I; Alkyldimethylbenzylammonium chloride of formula II (wherein n = 8, 10, 12, 14, 16, 18, preferably 12, 14 and 16, and mixtures thereof) 【Chemistry 1】 Formula II; It comprises a quaternary ammonium compound selected from the group consisting of and mixtures thereof, The bleach-free laundry disinfectant composition according to claim 1, optionally the quaternary ammonium compound is alkyl C12-16 dimethylbenzylammonium chloride, dicapryl / dicaprylyldimonium chloride, and mixtures thereof.

7. The bleach-free laundry disinfectant composition according to claim 6, wherein the level of quaternary ammonium compounds in the bleach-free laundry disinfectant composition is about 1 wt% to about 4 wt%.

8. The bleach-free laundry disinfectant composition according to claim 1, wherein the pH of the bleach-free laundry disinfectant composition is about 7 to about 11.

9. The bleach-free laundry disinfectant composition according to claim 1, further comprising a laundry care additive, wherein optionally the laundry care additive is a laundry conditioner.

10. The bleach-free laundry disinfectant composition according to claim 4, wherein at least the fragrance component is biodegradable.

11. The bleach-free laundry disinfectant composition according to claim 1, wherein at least the shell surrounding the core is biodegradable.

12. A method for producing a bleach-free laundry disinfectant composition according to any one of claims 1 to 11, comprising the step of mixing at least one microcapsule composition containing a polymer encapsulating a beneficial agent with a bleach-free laundry disinfectant base composition, wherein the beneficial agent is encapsulated in a core-shell microcapsule having a core and a shell surrounding the core.

13. Use of at least one microcapsule composition comprising a polymer encapsulating a beneficial agent, wherein the beneficial agent is encapsulated in a core-shell microcapsule comprising a core and a shell surrounding the core, for the purpose of improving the perception or enhancing the performance of a bleach-free laundry disinfectant composition according to any one of claims 1 to 11.

Images