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WO2023025751A1 - Dextrines cycliques hautement ramifiées en tant qu'agents de lutte contre les mauvaises odeurs - Google Patents

Dextrines cycliques hautement ramifiées en tant qu'agents de lutte contre les mauvaises odeurs Download PDF

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Publication number
WO2023025751A1
WO2023025751A1 PCT/EP2022/073383 EP2022073383W WO2023025751A1 WO 2023025751 A1 WO2023025751 A1 WO 2023025751A1 EP 2022073383 W EP2022073383 W EP 2022073383W WO 2023025751 A1 WO2023025751 A1 WO 2023025751A1
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WO
WIPO (PCT)
Prior art keywords
fabric
composition
highly
branched cyclic
cyclic dextrin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2022/073383
Other languages
English (en)
Inventor
Walter Heberlein
Marc Weyhe
Madeline SCHEUER
Hubert Smyrek
Joseph D Dahlmeyer Jr
David Anthony Reagan
Daniel Thomas PIORKOWSKI
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henkel AG and Co KGaA
Henkel IP and Holding GmbH
Original Assignee
Henkel AG and Co KGaA
Henkel IP and Holding GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US17/445,783 external-priority patent/US20230063888A1/en
Application filed by Henkel AG and Co KGaA, Henkel IP and Holding GmbH filed Critical Henkel AG and Co KGaA
Priority to EP22768726.6A priority Critical patent/EP4392524A1/fr
Publication of WO2023025751A1 publication Critical patent/WO2023025751A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/0068—Deodorant compositions
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/38—Cationic compounds
    • C11D1/62—Quaternary ammonium compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/001—Softening compositions
    • C11D3/0015—Softening compositions liquid
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/22—Carbohydrates or derivatives thereof
    • C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/50—Perfumes
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/26—Organic compounds containing oxygen
    • C11D7/268—Carbohydrates or derivatives thereof

Definitions

  • the present disclosure generally relates to the field of laundry washing and fabric care compositions as well as to home care compositions and methods and uses thereof. More particularly, the present disclosure relates to fabric conditioning compositions, fabric refreshers and liquid laundry detergents comprising highly-branched cyclic dextrin as a malodor control agent and methods and uses thereof.
  • Fabrics can become hard due to repeated washings. Also, after washing, fabrics can have an undesirable smell. To restore their softness, improve their scent, or impart other desirable properties, fabrics are often treated by additional processes that are separate from their washing. The treatments are separate because the fabric-treating compositions are often not compatible with the washing detergent. These additional processes can be done, for example, in the washer during an added cycle, or in the dryer when using a solid composition. For example, it is well known to provide liquid fabric conditioning compositions that soften washed fabrics. Such compositions are typically added to the fabrics in the rinse cycle of the wash process
  • Body odor and/or sweat is one of the most prevalent malodors that consumers seek to address by laundering with various detergents.
  • consumers also use fabric conditioning compositions noted above, e.g., to improve the results or to achieve further benefits.
  • the chemical constituents within body odor predominantly short-chained fatty acids and mercaptans, persist on fabrics post-wear and may sometimes continue to be perceivable after washing with conventional laundry products.
  • perfumes or perfume compositions are used to cover up or reduce malodors on fabrics.
  • perfumes are often very expensive and are, in many cases, not capable to cover malodors sufficiently and long-lastingly.
  • the use of perfumes or fragrance molecules in detergents, fabric conditioning compositions or home care products is further limited due to the restriction of specific fragrances, challenging addition of specific perfume compositions or molecules to the formulation matrix or high concentrations of other necessary compounds.
  • the inventors of the present invention have surprisingly found that adding highly-branched cyclic dextrin compounds (also called cluster dextrins) to (laundry) detergents, fabric conditioning compositions or home care products, such as fabric refreshers, reduces or eliminates the (perception of) malodors from/within the washed or treated fabric(s).
  • the fabric that is treated with the respective composition comprising at least one highly-branched cyclic dextrin absorbs less malodor.
  • a fabric conditioning composition including a fabric softening agent, a highly-branched cyclic dextrin, and water.
  • a method for laundering fabric including applying a detergent composition to the fabric, rinsing the detergent composition from the fabric, and after rinsing the detergent composition from the fabric, applying a fabric conditioning composition to the fabric.
  • the fabric conditioning composition includes a fabric softening agent, a highly-branched cyclic dextrin, and water. Furthermore, the method includes rinsing the fabric conditioning composition from the fabric.
  • a fabric conditioning composition including a fabric softening agent including a quaternary ammonium ester compound in an amount of about 4.0 wt.-% to about 15.0 wt.-%, a highly-branched cyclic dextrin having an average molecular weight of about 500 Daltons to about 3000 kilo Daltons in an amount of about 2.0 wt.-% to about 4.0 wt.-%, and water in an amount of about 85 wt.-% to about 92 wt.-%.
  • the invention relates to a fabric refresher composition
  • a fabric refresher composition comprising at least one highly-branched cyclic dextrin (cluster dextrin) in an amount of at least 0.01 wt.-%, based on the total weight of the fabric refresher composition.
  • the highly-branched cyclic dextrin preferably has an average molecular weight of about 100 Da to about 5000 kDa, in particular about 500 Da to about 3000 kDa.
  • the highly-branched cyclic dextrin is maltodextrin (CAS 9050-36-6).
  • the highly-branched cyclic dextrin is comprised in the fabric refresher composition in an amount of from 0.01 to 30 wt.-%, preferably from 0.01 to 25 wt.-% and in particular from 0.01 to 5 wt.-%, based on the total weight of the fabric refresher composition.
  • the fabric refresher composition further comprises at least one perfume or a perfume composition.
  • the fabric refresher composition is a liquid fabric refresher composition, preferably a water-based liquid fabric refresher composition.
  • the fabric refresher composition is a malodor removing spray, in particular for malodors caused by pets.
  • the invention relates to a method for reducing or eliminating malodor, preferably malodor caused by pets, comprising the following step: applying in at least one method step the fabric refresher composition according to the invention to a fabric to be treated, wherein the fabric refresher composition is preferably sprayed onto the fabric.
  • the invention relates to a liquid laundry detergent composition, comprising at least one highly-branched cyclic dextrin (cluster dextrin) in an amount of at least 0.01 wt.-%, based on the total weight of the liquid laundry detergent composition.
  • the highly-branched cyclic dextrin preferably has an average molecular weight of about 100 Da to about 5000 kDa, in particular about 500 Da to about 3000 kDa.
  • the highly-branched cyclic dextrin is maltodextrin (CAS 9050-36-6).
  • the highly-branched cyclic dextrin is comprised in the liquid laundry detergent composition in an amount of 0.01 to 30 wt.-%, preferably 0.01 to 25 wt.% and in particular 0.01 to 5 wt.-%, based on the total weight of the liquid laundry detergent composition.
  • the liquid laundry detergent composition further comprises at least one perfume or a perfume composition.
  • the invention relates to a method for reducing or eliminating malodor, preferably malodor caused by sweat, comprising the following step: contacting in at least one method step the liquid laundry detergent composition according to the invention with a fabric to be treated, wherein the contacting preferably occurs in a laundry washing process, preferably in an automated washing machine.
  • the invention relates to the use of a highly-branched cyclic dextrin for reducing or eliminating malodors of a fabric.
  • the malodors are caused by pets and/or the fabric is a textile, carpet or furniture.
  • the highly-branched cyclic dextrin is used in combination with at least one perfume or a perfume composition, more preferably in a fabric refresher composition such as a malodor removing spray, in particular for malodors caused by pets.
  • a fabric refresher composition such as a malodor removing spray, in particular for malodors caused by pets.
  • the malodors are caused by sweat.
  • the highly-branched cyclic dextrin is maltodextrin (CAS: 9050-36-6).
  • the highly-branched cyclic dextrin is used in combination with at least one perfume or a perfume composition, preferably in a liquid laundry detergent composition.
  • the highly-branched cyclic dextrin is used within a washing process, more preferably a machine washing process or hand washing.
  • FIG. 1 is the schematic illustration of a process for the preparation of highly-branched cyclic dextrin from amylose.
  • At least one refers to one or more, i.e. 1 , 2, 3, 4, 5, 6, 7, 8, 9 or more of the referenced species. In connection with a given species, the term does not relate to the total amount of molecules, but to the type of compound. "At least one highly-branched cyclic dextrin” therefore means, for example, that only one type of highly-branched cyclic dextrin or several different types may be included, without specifying the amount of each compound.
  • the present invention relates in one aspect to fabric conditioning compositions including highly- branched cyclic dextrin as a malodor control agent and methods for using the same.
  • body odor is one of the most prevalent malodors that consumers seekto avoid having remain on their fabrics post-wear and to remove from fabrics with various laundering agents.
  • Such malodors are predominantly short-chain fatty acid compounds and mercaptan compounds.
  • the fabric conditioning compositions of the present disclosure include highly-branched cyclic dextrin compounds in certain amounts, which have been discovered to be highly-effective in removing or eliminating the perception of these malodors within washed fabrics.
  • Various embodiments of fabric conditioning compositions within the scope of the present disclosure are described below with respect to their constituent components, as follows:
  • dextrin is a polymer of glucose and is produced by a method of enzymatically decomposing a starch, such as amylopectin (for example corn starch).
  • a starch such as amylopectin (for example corn starch).
  • the degree and form of decomposition may be manipulated to produce certain forms, such as branching and molecular weight, of dextrin.
  • Highly-branched cyclic dextrin is one form of dextrin that may be produced in this manner (see portion “A” of FIG.
  • Cyclic dextrin is dextrin characterized in that 6 to 16 glucoses are linked by alpha-1 ,4 bonds (see portion “B” of FIG. 1).
  • a cyclic dextrin is alpha-cyclodextrin, which contains six glucoses.
  • beta-cyclodextrin contains seven glucoses
  • gamma-cyclodextrin contains eight glucoses.
  • Cyclic dextrin is further characterized in that it is shaped in the form of coil (see portion “C” of FIG. 1).
  • Commercially available highly-branched cyclic dextrin is in the form of a white powder, is soluble in water, and has a loss on drying of less than about 5.5%.
  • the bonds between the glucoses allow cyclic dextrin to have the coil-like structure shown in FIG. 1 , containing a certain volume of void space.
  • the array of each interior space is formed by oxygen atoms that form glycoside bridges with hydrogen atoms. Therefore, the inner surface becomes very hydrophobic, and the specific shape and physico-chemical properties of the voids have structural features capable of absorbing organic molecules or portions of organic molecules that match the shape of the inner space of the cyclic dextrin.
  • the outside of the cyclic dextrin remains hydrophilic. In this manner, malodors may be entrained within the voids, and effectively removed when the cyclic dextrin is rinsed using water from its application site, such as a fabric.
  • malodors may be inhibited in fabrics post-wear.
  • the highly-branched cyclic dextrin compounds employed as a fabric malodor removal I inhibition agent may have an average molecular weight, in embodiments, from about 100 kilo Daltons to about 5000 kilo Daltons, for example from about 500 kilo Daltons to about 3000 kilo Daltons.
  • the highly-branched cyclic dextrin compounds may be included within the fabric conditioning composition of the present disclosure, in embodiments, in an amount of about 1 .0 wt.- % to about 8.0 wt.-%, such as about 1 .5 wt.-% to about 6.0 wt.-%, or about 2.0 wt.-% to about 4.0 wt.-% (all weight percentages used herein are by total weight of the fabric conditioning composition, unless otherwise specifically noted).
  • the highly-branched cyclic dextrin is included within the fabric conditioning composition in an amount of about 2.5 wt.-%.
  • the fabric conditioning compositions of the present disclosure include at least one fabric softening agent.
  • the fabric softening agent is a cationic softening agent.
  • the cationic softening is generally one that is able to form a lamellar phase dispersion in water, in particular a dispersion of liposomes.
  • the cationic softening agent is typically a quaternary ammonium ester compound. Suitable quaternary ammonium ester compounds may include materials selected from a monoester quaternary material (“monoester quats”), diester quaternary material (“diester quats”), triester quaternary material (“triester quats”), and mixtures thereof.
  • Suitable quaternary ammonium ester compounds may be derived from alkanolamines, for example, C1-C4 alkanolamines, preferably C2 alkanolamines (e.g., ethanolamines).
  • the quaternary ammonium ester compounds may be derived from monoalkanolamines, dialkanolamines, trialkanolamines, or mixtures thereof, for example monoethanolamines, diethanolamines, diisopropanolamines, triethanolamines, or mixtures thereof.
  • the quaternary ammonium ester compounds may be derived from diethanolamines.
  • the quaternary ammonium ester compounds may be derived from di-isopropanolamines.
  • the quaternary ammonium ester compounds may be derived from triethanolamines.
  • the alkanolamines from which the quaternary ammonium ester compounds are derived may be alkylated mono- or dialkanolamines, for example C1-C4 alkylated alkanolamines, for example Ci alkylated alkanolamines (e.g., N-methyldiethanolamine).
  • the quaternary ammonium ester compound may include a quaternized nitrogen atom that is substituted, at least in part.
  • the quaternized nitrogen atom may be substituted, at least in part, with one or more C1-C3 alkyl or C1-C3 hydroxyl alkyl groups.
  • the quaternized nitrogen atom may be substituted, at least in part, with a moiety selected from the group consisting of methyl, ethyl, propyl, hydroxyethyl, 2-hydroxypropyl, 1-methyl-2-hydroxyethyl, poly(C2-C3 alkoxy), polyethoxy, benzyl, for example methyl or hydroxyethyl.
  • the quaternary ammonium ester compound may include compounds according to Formula (I):
  • R 1 may be linear, such as a partially-unsaturated linear alkyl chain; each R 2 is independently a C1-C3 alkyl or hydroxyalkyl group and/or each R 2 is selected from methyl, ethyl, propyl, hydroxyethyl, 2-hydroxypropyl, 1-methyl-2-hydroxyethyl, poly(C2-C3 alkoxy), polyethoxy, benzyl, for example methyl or hydroxyethyl; each X is independently — (CH2)n — , — CH2 — CH(CH3) — , or — CHfCHs) — CH2 — , where each n is independently 1 , 2, 3 or 4, for example each n may be 2; each Y is independently — O — (O)C — or — C(O) — O — ; and
  • A- is independently selected from the group of chloride, bromide, methyl sulfate, ethyl sulfate, sulfate, and nitrate, for example A- is selected from the group of chloride and methyl sulfate, such as methyl sulfate.
  • the fabric softening agent may be included within the fabric conditioning compositions of the present disclosure, in embodiments, in an amount of about 4.0 wt.-% to about 15.0 wt.-%, such as about 6.0 wt.-% to about 12.0 wt.-%, or about 7.0 wt.-% to about 9.0 wt.-%. In a particular embodiment, the softening agent may be included within the fabric conditioning composition in an amount of about 8.0 wt.-%.
  • the fabric conditioning compositions of the present disclosure include water, as a base solvent, in an amount of about 75 wt.-% to about 95 wt.-%, such as about 85 wt.-% to about 92 wt.-%. In a particular embodiment, water may be included within the fabric conditioning composition in an amount of about 8.0 wt.-%.
  • the aqueous base may also include water-soluble species, such as mineral salts or short chain (C1-4) alcohols.
  • the mineral salts may aid the attainment of the desired phase volume for the composition.
  • Such salts may be present in an amount of about 0.001 to about 1 %, such as from about 0.005 wt.-% to about 0.1 wt.-%.
  • suitable mineral salts for this purpose include calcium chloride and magnesium chloride.
  • suitable short chain alcohols include primary alcohols, such as ethanol, propanol, and butanol, secondary, alcohols such as isopropanol, and polyhydric alcohols such as propylene glycol and glycerol.
  • the fabric conditioning compositions of the present disclosure may include a rheology polymer or “thickener”.
  • the rheology polymer promotes a desired thick and creamy appearance of the fabric conditioning compositions.
  • the molecular weight of the rheology polymer may be from about 1 ,000 Daltons to about 1 ,000,000 Daltons, such as from about 50,000 Daltons to about 500,000 Daltons, or about 100,000 Daltons to about 400,000 Daltons.
  • the rheology polymer may be present in an amount of at least about 0.0005 wt.-%, such as from about 0.0005 wt.-% to about 2 wt.-%, or about 0.001 wt.-% to about 0.5 wt.-%.
  • Suitable rheology polymers may be selected from hydrophobically modified cellulose ethers. Such materials are typically nonionic polymers and have a sufficient degree of nonionic substitution selected from the class consisting of methyl, hydroxyethyl and hydroxypropyl to cause them to be water-soluble and which are further substituted with one or more hydrocarbon radicals having from 10 to 24 carbon atoms.
  • the nonionic cellulose ether that forms the backbone of the hydrophobically modified derivative may be any nonionic water soluble cellulose ether substrate, such as hydroxyethyl cellulose (HEC), hydroxypropyl cellulose (HPC), methyl cellulose, hydroxypropyl methyl cellulose; ethyl hydroxyethyl cellulose or methyl hydroxyethyl cellulose.
  • HEC hydroxyethyl cellulose
  • HPC hydroxypropyl cellulose
  • methyl cellulose hydroxypropyl methyl cellulose
  • ethyl hydroxyethyl cellulose methyl hydroxyethyl cellulose
  • the fabric conditioning compositions of the present disclosure may optionally include one or more other ingredients.
  • Such ingredients include co-softeners (such as fatty esters, and fatty N-oxides) preservatives (e.g. bactericides), pH buffering agents, perfumes, perfume carriers, fluorescers, colorants, hydrotropes, antifoaming agents, anti-redeposition agents, soil-release agents, polyelectrolytes, enzymes, optical brightening agents, anti-shrinking agents, anti-wrinkle agents, anti-spotting agents, anti-oxidants, sunscreens, anti-corrosion agents, drape imparting agents, antistatic agents, ironing aids, and dyes, among others known in the art.
  • co-softeners such as fatty esters, and fatty N-oxides
  • preservatives e.g. bactericides
  • pH buffering agents such as fatty esters, and fatty N-oxides
  • perfumes such as fatty esters, and fatty N-oxide
  • Such optional ingredients may be included in amounts, respectively, of from about 0.0001 wt.-% to about 1.0 wt.-%, for example.
  • embodiments of the present disclosure may exclude certain compounds that are commonly found in detergent compositions. These excluded compounds include, for example, cationic water-soluble polymers, non-ionic surfactants, and/or tertiary amine compounds.
  • the fabric conditioning compositions of the present disclosure may be rinse conditioner compositions and may be used in the rinse cycle of a domestic laundry process.
  • the compositions may be used in the rinse cycle of a home fabric laundering operation, where, it may be added directly in an undiluted state to a washing machine, e.g. through a dispenser drawer or, for a toploading washing machine, directly into the drum. Alternatively, it may be diluted prior to use.
  • the compositions may also be used in a domestic hand-washing laundry operation. It is also possible for the compositions of the present invention to be used in industrial laundry operations.
  • the fabric conditioning compositions of the present disclosure may be manufactured by combining the various ingredients together and then performing a mixing operation.
  • the mixing operation may be shear mixing, in an embodiment.
  • the present invention relates in a further aspect, to fabric refresher compositions comprising at least one highly-branched cyclic dextrin in an amount of at least 0.01 wt.%, based on the total weight of the fabric refresher composition.
  • the highly-branched cyclic dextrin is preferably the same as defined for fabric conditioning compositions and the above embodiments may also be used for fabric refresher compositions described herein.
  • the highly-branched cyclic dextrin has an average molecular weight of about 100 Daltons to about 5000 kilo Daltons, preferably about 500 Daltons to about 3000 kilo Daltons.
  • the highly-branched cyclic dextrin is maltodextrin, preferably maltodextrin (CAS 9050-36-6).
  • Those highly-branched cyclic dextrins or cluster dextrins work as malodor control agents, in particular against malodors caused by pets.
  • the dextrins reduce or eliminate malodor, in particular on or within fabrics that are treated with the fabric refresher compositions as described herein.
  • the fabrics that are treated with the fabric refresher compositions as described herein absorb less malodors. This embodiment is comprised by the term “reducing or eliminating malodor”.
  • the highly-branched cyclic dextrin is added to fabric refresher compositions to treat fabrics that are in contact with pets, e.g. textiles such as clothes, pillows or blankets, carpets or furniture such couches, armchairs or mattresses, without being limited thereto.
  • the fabric refresher composition comprises the at least one highly- branched cyclic dextrin in an amount of from 0.01 to 30 wt.-%, preferably in an amount of from 0.01 to 25 wt.-%, for example 0.1 to 25 wt.-%, 0.01 to 20 wt.-%, 0.01 to 15 wt.-%, 0.01 to 10 wt.-%. or 0.1 to 10 wt.-%, and most preferably in an amount of from 0.01 to 5 wt.-%, for example at least 0.1 wt.-% such as 0.1 to 5 wt.-%, based on the total weight of the fabric refresher composition.
  • the fabric refresher composition comprises the at least one highly- branched cyclic dextrin in an amount of at least 0.1 wt.-%, based on the total weight of the fabric refresher composition.
  • the fabric refresher composition is a liquid fabric refresher composition. That means that the composition is flowable at standard conditions of 20 °C and 1013 mbar. It is further preferred that the fabric refresher composition is a water-based liquid fabric refresher composition. However, the addition of further solvents such as organic solvents, e.g. alcohols, is possible.
  • the fabric refresher composition may be diluted prior to use.
  • the fabric refresher compositions of the present invention may be used as an alternative or additionally to a washing process, in particular, if the fabric to be treated is too big to be washed in a washing machine (e.g. furniture or carpets) or to protect the fabric against several washing processes.
  • a washing machine e.g. furniture or carpets
  • the fabric refresher composition is a malodor removing spray.
  • a spray can be sprayed onto fabrics such as textiles, carpets or furniture to reduce or eliminate (the perception of) malodor, in particular onto fabrics that are in contact with pets to reduce or eliminate (the perception of) odors caused by pets.
  • the malodor to be reduced or eliminated is partly or mainly the malodor caused by a pet.
  • Such malodors are, for example, caused by compounds such as dimethylsulfide, sulfox (p-mentha-8-thiol-3-one) and/or tridecene-2-nitrile.
  • the fabric refresher composition may be contained in a vessel such as a spray bottle, e.g.
  • the highly-branched cyclic dextrin is particularly effective in fabric refreshers for odors caused by pets.
  • the use of highly-branched cyclic dextrin, in particular in a fabric refresher composition improves the olfactory impression of the fabric after application on the fabric.
  • the fabric refresher composition according to the invention further comprises at least one perfume or a perfume composition.
  • the perfume may be any perfume or perfume composition that is suitable for such an application.
  • the perfume is added to the composition to improve the olfactory impression of a fabric and to give a pleasant smell to the fabric that was treated with the fabric refresher.
  • organic solvents e.g. alcohols, can be comprised in the perfume composition.
  • the at least one perfume or perfume composition can be comprised in the fabric refresher composition in an amount of from 0.001 to 20 wt.-%, preferably, 0.01 to 10 wt.-%, in particular 0.5 to 5 wt.-%, e.g. 0.5, 1 , 1.5 or 2 wt.-%, based on the total weight of the fabric refresher composition.
  • the fabric refresher composition comprises a) at least one highly-branched cyclic dextrin as described herein, b) at least one perfume or perfume composition as described herein; and c) water.
  • Suitable perfume compounds may comprise individual fragrant compounds, for example synthetic products of the ester, ether, aldehyde, ketone, alcohol, and hydrocarbon type.
  • Fragrant compounds of the ester type are, for example, benzyl acetate, phenoxyethyl isobutyrate, p-tert-butylcyclohexyl acetate, linalyl acetate, dimethylbenzyl carbinyl acetate (DMBCA), phenylethyl acetate, benzyl acetate, ethylmethylphenyl glycinate, allylcyclohexyl propionate, styrallyl propionate, benzyl salicylate, cyclohexyl salicylate, floramate, melusate and jasmecyclate.
  • DMBCA dimethylbenzyl carbinyl acetate
  • benzyl acetate ethylmethylphenyl glycinate
  • the ethers include, for example, benzyl ethyl ether and ambroxan;
  • the aldehydes include, for example, the linear alkanals containing 8 to 18 carbon atoms, citral, citronellal, citronellyloxyacetaldehyde, cyclamen aldehyde, lilial and bourgeonal;
  • the ketones include, for example, the ionones, isomethyl ionone and methyl cedryl ketone;
  • the alcohols include anethol, citronellol, eugenol, geraniol, linalool, phenylethyl alcohol and terpineol and the hydrocarbons include, for example the terpenes, such as limonene and pinene.
  • mixtures of various fragrances which together produce an attractive fragrant note of the resulting perfume composition or perfume oil, are preferably used.
  • the perfume compounds may also contain natural mixtures of fragrances, as are obtainable from plant sources, for example pine, citrus, jasmine, patchouli, rose or ylang-ylang oil. Also suitable are e.g. muscatel sage oil, chamomile oil, clove oil, melissa oil, mint oil, cinnamon leaf oil, lime blossom oil, juniper berry oil, vetivert oil, olibanum oil, galbanum oil and laudanum oil and orange blossom oil, neroli oil, orange peel oil and sandalwood oil.
  • muscatel sage oil chamomile oil, clove oil, melissa oil, mint oil, cinnamon leaf oil, lime blossom oil, juniper berry oil, vetivert oil, olibanum oil, galbanum oil and laudanum oil and orange blossom oil, neroli oil, orange peel oil and sandalwood oil.
  • Exemplary long-lasting fragrances may be selected from essential oils, such as angelica root oil, aniseed oil, arnica flowers oil, basil oil, bay oil, bergamot oil, champax blossom oil, silver fir oil, silver fir cone oil, elemi oil, eucalyptus oil, fennel oil, pine needle oil, galbanum oil, geranium oil, ginger grass oil, guaiacum wood oil, Indian wood oil, helichrysum oil, ho oil, ginger oil, iris oil, cajuput oil, sweet flag oil, chamomile oil, camphor oil, Canoga oil, cardamom oil, cassia oil, Scotch fir oil, copaiba balsam oil, coriander oil, spearmint oil, caraway oil, cumin oil, lavender oil, lemon grass oil, limette oil, mandarin oil, melissa oil, amber seed oil, myrrh oil, clove oil, neroli oil, niaouli oil, olibanum oil,
  • fragrances of natural or synthetic origin can be advantageously used as long-lasting fragrances or mixtures of fragrances.
  • These compounds include for example the following compounds and their mixtures: ambrettolide, amyl cinnamaldehyde, anethol, anisaldehyde, anis alcohol, anisole, methyl anthranilate, acetophenone, benzyl acetone, benzaldehyde, ethyl benzoate, benzophenone, benzyl alcohol, borneol, bornyl acetate, bromostyrene, n-decyl aldehyde, n-dodecyl aldehyde, eugenol, eugenol methyl ether, eucalyptol, farnesol, fenchone, fenchyl acetate, geranyl acetate, geranyl formate, heliotropin, methyl heptyne
  • fragrances of higher volatility are alkyl isothiocyanates (alkyl mustard oils), butanedione, limonene, linalool, linalyl acetate and linalyl propionate, menthol, menthone, phellandrene, phenylacetaldehyde, terpinyl acetate, citral, citronellal.
  • essential oils may be used.
  • Exemplary essential oils are angelica fine (angelica archangelica), aniseed (pimpinella anisum), benzoe Siam (styrax tokinensis), cabreuva (myrocarpus fastigiatus), cajeput (melaleuca leucadendron), cistrose (cistrus ladaniferus), copaiba-balsam (copaifera reticulata), costic root (saussurea discolor), silver fir needle (abies alba), elemi (canarium luzonicum), fennel (foeniculum dulce) pine-needle (picea abies), geranium (pelargonium graveolens), ho-leaves (cinnamonum camphora), immortals (straw flower), helichrysum ang., ginger, perforate St.
  • John's wort hypericum perforatum
  • jojoba German chamomile (matricaria recutita), chamomile oil blue (matricaria chamomilla), Roman chamomile (anthemis nobilis), wild chamomile (ormensis multicaulis), carrot (daucus carota), knee pine (pinus mugho), lavander (lavendula hybrida), litsea cubeba (may chang), manuca (leptospermum scoparium), balm mint (melissa officinalis), pine tree (pinus pinaster), myrrh (commiphora molmol), myrtle (myrtus communis), neem (azadirachta), niaouli (mqv) melaleuca quin, viridiflora, palmarosa (cymbopogom martini), patchouli (pogostemon patschuli), perubals
  • the fabric refresher composition includes water in an amount of about 50 wt.-% to about 99.9 wt.-%, such as about 70 wt.-% to about 99.5 wt.-% or about 80 wt.-% to about 99.0 wt.-% or about 85 to about 95 wt.-%.
  • the fabric refresher composition of the present invention may optionally include one or more other ingredients.
  • the fabric refresher composition may further comprise one or more components of the following list, without being limited thereto: surfactants, builders, bleaching agents, bleach activators, enzymes, electrolytes, non-aqueous solvents, pH adjusting agents, fluorescent agents, dyes, hydrotopes, antifoaming agents, silicone oils, anti-redeposition agents, optical brighteners, graying inhibitors, shrinkage inhibitors, anti-crease agents, color transfer inhibitors, antimicrobial agents, germicides, fungicides, antioxidants, preservatives, corrosion inhibitors, antistatic agents, bittering agents, ironing aids, phobing and impregnating agents, swelling and anti-skidding agents, neutral filling salts and UV absorbers.
  • the fabric refresher composition may comprise at least one surfactant, preferably selected from nonionic, anionic, cationic, zwitterionic or amphoteric surfactants, more preferably nonionic or anionic surfactants or mixtures thereof.
  • the at least one surfactant is comprised in the composition in an amount of at least 0.01 wt.%, based on the total weight of the fabric refresher composition.
  • the at least one surfactant is comprised in the composition in amounts of 5 wt.-% or less, preferably 4 wt.- % or less, more preferably 2 wt.-% or less and in particular 1 wt.-% or less, based on the total weight of the fabric refresher composition.
  • the fabric refresher composition according to the invention can contain antimicrobial active ingredients.
  • antimicrobial active ingredients bacteriostats and bactericides, fungistats and fungicides, etc.
  • Important substances from these groups are, for example, benzalkonium chlorides, alkylaryl sulfonates, halophenols and phenol mercuriacetate, without being limited thereto.
  • the fabric refresher can also be free of antimicrobial active ingredients.
  • the fabric refresher composition according to the invention may contain preservatives, preferably using only those which have no or only a low skin-sensitizing potential. Examples are sorbic acid and its salts, benzoic acid and its salts, salicylic acid and its salts, phenoxyethanol, 3-iodo-2- propynylbutylcarbamate, sodium N-(hydroxymethyl)glycinate, biphenyl-2-ol and mixtures thereof.
  • a suitable preservative is the solvent-free, aqueous combination of diazolidinyl urea, sodium benzoate and potassium sorbate (available as Euxyl® K 500 ex Schuelke & Mayr), which can be used in a pH range up to 7.
  • preservatives based on organic acids and/or their salts are suitable for preserving the fabric refresher compositions according to the invention.
  • the fabric refresher composition can also be free of preservatives.
  • the fabric refresher composition may contain antioxidants.
  • This class of compounds includes, for example, substituted phenols, hydroquinones, pyrocatechins and aromatic amines, as well as organic sulfides, polysulfides, dithiocarbamates, phosphites, phosphonates and vitamin E.
  • the fabric refresher composition can also be free of antioxidants.
  • the fabric refresher composition does not comprise a fabric softening agents such as a quaternary ammonium ester compound.
  • the fabric refresher composition is free of ester quats such as monoester quats, diester quats or triester quats or other fabric softening agents.
  • the fabric refresher composition is free of builders, preferably builders suitable for liquid laundry detergent compositions, e.g. as described below.
  • Free of means in the context of the invention that the compounds are not actively added to the composition, but may be present, e.g. due to impurities or side reactions, but are then only present in a low concentration of less than 1 wt.-%, preferably less than 0.1 wt.-%, more preferably less than 0.01 wt.-%, based on the total weight of the fabric refresher composition.
  • the invention relates to a method for reducing or eliminating (the perception of) malodor, preferably malodor caused by pets, comprising the following step: applying in at least one method step the fabric refresher composition according to the invention to a fabric to be treated, wherein the fabric refresher composition is preferably sprayed onto the fabric.
  • the present invention relates to the use of a highly-branched cyclic dextrin for reducing or eliminating (the perception of) malodors of a fabric.
  • the malodors are malodors partly or mainly caused by pets as described herein.
  • the highly-branched cyclic dextrin is preferably as described herein. In particular, it has an average molecular weight of about 100 Daltons to about 5000 kilo Daltons, preferably about 500 Daltons to about 3000 kilo Daltons. Most preferred, the highly-branched cyclic dextrin is maltodextrin (CAS 9050-36-6).
  • the fabric may be a textile such as clothes, a pillow or a blanket, a carpet, or furniture such as couches, armchairs, or mattresses, without being limited thereto.
  • the highly-branched cyclic dextrin is used in combination with at least one perfume or a perfume composition, preferably in a (water-based) fabric refresher composition as described above.
  • a composition is suitable to reduce or eliminate malodors, preferably malodors caused by pets, within fabrics.
  • the olfactory impression of the fabric is improved.
  • the highly-branched cyclic dextrin is comprised in the (water-based) fabric refresher composition in amounts of at least 0.01 wt.-%, preferably of at least 0.1 wt.-%, based on the total weight of the fabric refresher composition.
  • the highly-branched cyclic dextrin is used in combination with at least one perfume or a perfume composition and/or at least one surfactant.
  • the surfactant is as described above.
  • Liquid laundry detergent composition :
  • the present invention relates in a further aspect to liquid laundry detergent compositions comprising at least one highly-branched cyclic dextrin in an amount of at least 0.01 wt.%, based on the total weight of the liquid laundry detergent composition.
  • the highly-branched cyclic dextrin is preferably the same as defined for fabric conditioning compositions or fabric refresher compositions and the above embodiments may also be used for liquid laundry detergent compositions.
  • the highly-branched cyclic dextrin has an average molecular weight of about 100 Daltons to about 5000 kilo Daltons, preferably about 500 Daltons to about 3000 kilo Daltons.
  • the highly-branched cyclic dextrin is maltodextrin, preferably maltodextrin (CAS 9050-36-6).
  • malodor control agents in particular against malodors caused by sweat or body odor.
  • Such malodors are predominantly shortchain fatty acid compounds and mercaptan compounds, e.g. butyric acid, octanoic acid, isovaleric acid or 3-mercapto-2-methylpentan-1-ol.
  • the highly-branched cyclic dextrins are added to liquid laundry detergent compositions to reduce or eliminate (the perception of) malodors caused by sweat or body odor from fabrics such as clothes.
  • the washed fabrics absorb less malodor.
  • the liquid laundry detergent composition comprises the at least one highly- branched cyclic dextrin in an amount of from 0.01 to 30 wt.%, preferably in an amount of from 0.01 to 25 wt.-%, for example 0.1 to 25 wt.-%, 0.01 to 20 wt.-%, 0.01 to 15 wt.-%, 0.01 to 10 wt.-%.
  • 0.1 to 10 wt.-% and most preferably in an amount of from 0.01 to 5 wt.%, for example at least 0.1 wt.-% such as 0.1 to 5 wt.-%, based on the total weight of the liquid laundry detergent composition.
  • the liquid laundry detergent composition comprises the at least one highly-branched cyclic dextrin in an amount of at least 0.1 wt.-%, based on the total weight of the liquid laundry detergent composition.
  • liquid laundry detergent compositions is used during washing process such as a machine wash process or hand washing.
  • the liquid laundry detergent composition further comprises at least one perfume or a perfume composition.
  • the combination of the at least one highly-branched cyclic dextrin and at least one perfume or perfume composition preferably, results in an improved olfactory impression of fabrics washed with the liquid laundry detergent composition according to the invention.
  • the liquid detergent composition is a water-based liquid laundry detergent composition.
  • further solvents such as organic solvents, e.g. alcohols, is possible.
  • organic solvents can be comprised in the perfume composition.
  • “Liquid” laundry detergent composition means in the context of the present invention that the composition is flowable at standard conditions (20 °C and 1013 mbar).
  • the composition can e.g. also be a gel or a paste.
  • the at least one perfume or perfume composition can be comprised in the liquid laundry detergent composition in an amount of from 0.001 to 20 wt.-%, preferably, 0.01 to 10 wt.-%, in particular 0.5 to 5 wt.-%, e.g. 0.5, 1 , 1 .5 or 2 wt.-%, based on the total weight of the liquid laundry detergent composition.
  • liquid laundry detergent composition according to the invention may further comprises at least one ingredient selected from the group consisting of surfactants, enzymes, builders and agents that enhance absorption.
  • the detergent composition can contain anionic, nonionic, cationic, amphoteric or zwitterionic surfactants or mixtures thereof.
  • the surfactants comprise at least one anionic surfactant and/or at least one nonionic surfactant.
  • Suitable nonionic surfactants are in particular ethoxylation and/or propoxylation products of alkyl glycosides and/or linear or branched alcohols each having from 12 to 18 C atoms in the alkyl portion and from 3 to 20, preferably from 4 to 10, alkyl ether groups. Also usable are corresponding ethoxylation and/or propoxylation products of N-alkylamines, vicinal diols, fatty acid esters, and fatty acid amides which, with regard to the alkyl portion, correspond to the stated long-chain alcohol derivatives, and of alkylphenols having from 5 to 12 C atoms in the alkyl group.
  • Suitable anionic surfactants are in particular soaps and those containing sulfate or sulfonate groups preferably having alkali ions as cations.
  • Soaps that can be used are preferably the alkali salts of saturated or unsaturated fatty acids having 12 to 18 C atoms. Fatty acids of this kind may also be used in a not completely neutralized form.
  • Usable sulfate-type surfactants include the salts of sulfuric acid semiesters of fatty alcohols having from 12 to 18 C atoms and the sulfation products of the stated nonionic surfactants having a low degree of ethoxylation.
  • Usable sulfonate-type surfactants include linear alkylbenzenesulfonates having from 9 to 14 C atoms in the alkyl portion, alkanesulfonates having from 12 to 18 C atoms, and olefin sulfonates having from 12 to 18 C atoms, resulting from the reaction of corresponding monoolefins with sulfur trioxide, and alpha-sulfo fatty acid esters, resulting from the sulfonation of fatty acid methyl or ethyl esters.
  • Cationic surfactants are preferably selected from among esterquats and/or quaternary ammonium compounds (QACs) according to the general formula (R I )(R")(R III )(R IV )N + X ⁇ , in which R 1 to R IV represent C1-22 alkyl groups, C7-28 arylalkyl groups or heterocyclic groups that are the same or different, wherein two groups, or, in the case of aromatic bonding such as in pyridine, even three groups form, together with the nitrogen atom, the heterocycle, for example a pyridinium or imidazolinium compound, and X- represents halide ions, sulfate ions, hydroxide ions, or similar anions.
  • QACs quaternary ammonium compounds
  • QACs may be prepared by reacting tertiary amines with alkalizing agents, for example methyl chloride, benzyl chloride, dimethyl sulfate, dodecyl bromide, but also ethylene oxide.
  • alkalizing agents for example methyl chloride, benzyl chloride, dimethyl sulfate, dodecyl bromide, but also ethylene oxide.
  • the alkylation of tertiary amines with a long alkyl group and two methyl groups is particularly simple; the quaternization of tertiary amines with two long groups and a methyl group may also be carried out under mild conditions using methyl chloride.
  • Amines having three long alkyl groups or hydroxysubstituted alkyl groups are less reactive, and are quaternized using dimethyl sulfate, for example.
  • Suitable QACs are benzalkonium chloride (N-alkyl-N,N-dimethylbenzylammonium chloride), Benzalkon B (m,p-dichlorobenzyldimethyl-Ci2 alkylammonium chloride, benzoxonium chloride (benzyldodecyl-bis-(2-hydroxyethyl) ammonium chloride), cetrimonium bromide (N- hexadecyl-N,N-trimethylammonium bromide), benzethonium chloride (N,N-dimethyl-N-[2-[2-[2-[p- (1 ,1 ,3,3-tetramethylbutyl)phenoxy]ethoxy]ethyl]benzylammonium chloride), dialkyldimethylammonium chlorides such as di-n-decyldimethyl ammonium chloride, didecyldimethyl ammonium bromide, dioctyldi
  • Preferred esterquats are methyl-N-(2-hydroxyethyl)-N,N-di(talgacyloxyethyl) ammonium methosulfate, bis-(palmitoyl)ethylhydroxyethylmethyl ammonium methosulfate or methyl-N,N- bis(acyloxyethyl)-N-(2-hydroxyethyl) ammonium methosulfate.
  • Stepantex® methylhydroxyalkyldialkoyloxyalkyl ammonium methosulfates marketed by Stepan under the trademark Stepantex®, the products from BASF SE known under the trade name Dehyquart®, or the products from Evonik known under the name Rewoquat®.
  • the at least one surfactant is comprised in the liquid laundry detergent composition in amounts of from 0.01 to 50 wt.-%, preferably 0.1 to 40 wt.-%, most preferably 0.5 to 30 wt.-%, based on the total weight of the liquid laundry detergent composition.
  • the surfactant content is selected to be higher or lower.
  • the surfactant content can usually be from 10 to 50 wt.-%, preferably from 12.5 to 30 wt.-% and more preferably from 15 to 25 wt.-%.
  • the laundry detergent composition can contain, for example, at least one water-soluble and/or water-insoluble, organic and/or inorganic builder.
  • the water-soluble organic builders include polycarboxylic acids, in particular citric acid and saccharic acids, monomeric and polymeric aminopolycarboxylic acids, in particular methylglycinediacetic acid, nitrilotriacetic acid, ethylenediaminetetraacetic acid and polyaspartic acid, polyphosphonic acids, in particular amino tris(methylenephosphonic acid), ethylenediamine tetrakis(methylenephosphonic acid) and 1- hydroxyethane-1 ,1 -diphosphonic acid, polymeric hydroxy compounds such as dextrin, and polymeric (poly)carboxylic acids, polymeric acrylic acids, methacrylic acids, maleic acids, and mixed polymers thereof, which may also contain, in the polymer, small portions of polymerizable substances, without a carboxylic acid functionality.
  • ком ⁇ онентs of this class which are suitable, although less preferred, are copolymers of acrylic acid or methacrylic acid with vinyl ethers, such as vinyl methyl ethers, vinyl esters, ethylene, propylene and styrene, in which the proportion of the acid is at least 50 wt.-%.
  • the organic builder substances may be used in the form of aqueous solutions, preferably in the form of 30 to 50 wt.-% aqueous solutions. All mentioned acids are generally used in the form of the water-soluble salts thereof, in particular alkali salts thereof.
  • Organic builder substances can be contained in amounts of up to 40 wt.-%, in particular up to 25 wt.-%, and preferably from 1 wt.-% to 8 wt.-%. Amounts close to the stated upper limit are preferably used.
  • alkali silicates and polyphosphates are suitable as water-soluble inorganic builder materials.
  • crystalline or amorphous alkali aluminosilicates if desired, can be used as water-insoluble, water-dispersible inorganic builder materials in amounts of up to 50 wt.-%, preferably no greater than 40 wt.-%, and in particular in amounts of from 1 wt.-% to 5 wt.-%.
  • crystalline sodium aluminosilicates of washing agent quality in particular zeolite A, P and optionally X, can be used.
  • Suitable aluminosilicates have in particular no particles having a particle size greater than 30 pm and preferably consist of up to at least 80 wt.% of particles having a size smaller than 10 pm.
  • Suitable substitutes or partial substitutes for the stated aluminosilicate are crystalline alkali silicates, which may be present alone or in a mixture with amorphous silicates.
  • the alkali silicates that can be used in the laundry detergent composition as builders preferably have a molar ratio of alkali oxide to SiO2 of less than 0.95, in particular from 1 :1.1 to 1 :12, and may be present in amorphous or crystalline form.
  • Preferred alkali silicates are sodium silicates, in particular amorphous sodium silicates, having a Na2O:SiO2 molar ratio of from 1 :2 to 1 :2.8.
  • Preferred crystalline phyllosilicates are those in which x in the stated general formula assumes the values 2 or 3.
  • both beta- and delta-sodium disilicates (Na2Si2Os yH2O) are preferred.
  • Builder substances are, if desired, preferably contained in amounts of up to 60 wt.%, in particular from 5 wt.-% to 40 wt.-%.
  • the laundry detergent composition according to the invention may further comprise at least one enzyme.
  • the enzyme may be a hydrolytic enzyme or another enzyme in a concentration that is expedient for the effectiveness of the composition.
  • One embodiment of the invention thus represents compositions, which comprise one or more enzymes. All enzymes which can develop catalytic activity in the composition according to the invention, in particular a protease, amylase, cellulase, hemicellulase, mannanase, tannanase, xylanase, xanthanase, xyloglucanase, p-glucosidase, pectinase, carrageenanase, perhydrolase, oxidase, oxidoreductase or a lipase, and mixtures thereof, can preferably be used as enzymes.
  • Enzymes are contained in the composition advantageously in an amount of from 1 x 10 -8 to 5 wt.-% in each case, based on the active protein.
  • Each enzyme is contained in composition according to the invention in an amount of, in order of increasing preference, from 1 x 10 -7 to 3 wt.-%, from 0.00001 to 1 wt.-%, from 0.00005 to 0.5 wt.- %, from 0.0001 to 0.1 wt.-%, and particularly preferably from 0.0001 to 0.05 wt.-%, based on the active protein.
  • the enzymes exhibit synergistic cleaning performance against specific stains or spots, i.e., the enzymes contained in the composition support one another in their cleaning performance. Synergistic effects can arise not only between different enzymes, but also between one or more enzymes and other ingredients of the liquid laundry detergent composition according to the invention.
  • the amylase(s) is/are preferably an a-amylase.
  • the hemicellulase is preferably a pectinase, a pullulanase and/or a mannanase.
  • the cellulase is preferably a cellulase mixture or a singlecomponent cellulase, preferably or predominantly an endoglucanase and/or a cellobiohydrolase.
  • the oxidoreductase is preferably an oxidase, in particular a choline-oxidase, or a perhydrolase.
  • the proteases used are preferably alkaline serine proteases. They act as unspecific endopeptidases, i.e., they hydrolyze any acid amide bonds that are inside peptides or proteins and thereby remove protein-containing stains on the item to be cleaned. Their optimum pH is usually in the distinctly alkaline range.
  • the enzyme contained in the composition according to the invention is a protease.
  • the enzymes that are used in the present case may be naturally occurring enzymes or enzymes which have been changed by one or more mutations based on naturally occurring enzymes, in order to positively influence desired properties such as catalytic activity, stability or disinfecting performance.
  • the enzyme is present in the compositions according to the invention in the form of an enzyme product in an amount of 0.01 to 10 wt.-%, preferably 0.01 to 5 wt.-%, based on the total weight of the composition.
  • the active protein content is preferably in the range from 0.00001 to 1 wt.-%, in particular 0.0001 to 0.2 wt.-%, based on the total weight of the composition.
  • the protein concentration can be determined using known methods, for example the BCA method (bicinchoninic acid; 2,2'-bichinolyl-4,4'-dicarboxylic acid) or the Biuret method.
  • the active protein concentration is determined by titrating the active centers using a suitable irreversible inhibitor (e.g., phenylmethylsulfonylfluoride (PMSF) for proteases) and determining the residual activity (cf. M. Bender et al., J. Am. Chem. Soc. 88, 24 (1966), p. 5890-5913).
  • a suitable irreversible inhibitor e.g., phenylmethylsulfonylfluoride (PMSF) for proteases
  • PMSF phenylmethylsulfonylfluoride
  • the enzymes to be used may furthermore be formulated together with accompanying substances, for example from fermentation.
  • the enzymes are used as enzyme liquid formulations.
  • the enzymes are generally not provided in the form of pure protein, but rather in the form of stabilized, storable and transportable preparations.
  • These ready-made preparations include, for example, the solid preparations obtained through granulation, extrusion, or lyophilization or, particularly, solutions of the enzymes, which are advantageously maximally concentrated, have a low water content, and/or are supplemented with stabilizers or other auxiliaries.
  • the enzymes can also be encapsulated, for example by spray-drying or extrusion of the enzyme solution together with a preferably natural polymer or in the form of capsules, for example those in which the enzymes are enclosed in a set gel, or in those of the core-shell type, in which an enzyme-containing core is coated with a water-, air-, and/or chemical-impermeable protective layer.
  • Further active ingredients such as stabilizers, emulsifiers, pigments, bleaching agents, or dyes can additionally be applied in overlaid layers.
  • Such capsules are applied using methods that are known per se, for example by shaking or roll granulation or in fluidized bed processes.
  • Such granules are advantageously low in dust, for example due to the application of polymeric film-formers, and stable in storage due to the coating. Moreover, it is possible to formulate two or more enzymes together, such that a single granule exhibits a plurality of enzyme activities.
  • liquid laundry detergent compositions according to the invention can have one or more enzyme stabilizers.
  • the liquid laundry detergent composition may additionally contain other ingredients which further improve the practical and/or aesthetic properties of the composition, depending on the intended use.
  • they may contain bleaching agents, bleach activators, bleach catalysts, esterquats, silicone oils, emulsifiers, thickeners, electrolytes, pH adjusters, fluorescing agents, dyes, hydrotropes, suds suppressors, anti-redeposition agents, solvents, optical brighteners, graying inhibitors, anti-shrink agents, crease-preventing agents, dye transfer inhibitors, color-protection agents, wetting promoters, antimicrobial active ingredients, germicides, fungicides, antioxidants, corrosion inhibitors, clear rinsers, preservatives, antistatic agents, ironing aids, waterproofing and impregnating agents, pearlescing agents, polymers, swelling and anti-slip agents and UV absorbers, without being limited to these.
  • Ingredients and framework compositions for washing and cleaning agent compositions are disclosed, for example, in EP 3 110 393 B1 .
  • the invention relates to a method for reducing or eliminating (the perception of) malodor, preferably malodor caused by sweat, comprising the following step: contacting in at least one method step the liquid laundry detergent composition according to the invention with a fabric to be treated, wherein the contacting preferably occurs in a laundry washing process, preferably in an automated washing machine.
  • the invention relates to the use of a highly-branched cyclic dextrin for reducing or eliminating (the perception of) malodors, preferably malodors caused by sweat or body odor as described herein, from a fabric.
  • the highly-branched cyclic dextrin is preferably applied during a washing process, in particular a machine wash process or hand washing.
  • the highly-branched cyclic dextrin is comprised in a laundry detergent composition, more preferably in a (water-based) liquid laundry detergent composition that is added to the wash water during the washing process.
  • Suitable highly-branched cyclic dextrins may have an average molecular weight of about 100 Daltons to about 5000 kilo Daltons, preferably about 500 Daltons to about 3000 kilo Daltons.
  • the highly-branched cyclic dextrin is maltodextrin, in particular maltodextrin (CAS: 9050- 36-6).
  • the at least one highly-branched cyclic dextrin is used in combination with at least one perfume or a perfume composition.
  • a composition preferably improves the olfactory impression of fabrics that were washed with it.
  • the at least one highly-branched cyclic dextrin is used in combination with at least one perfume or a perfume composition and/or at least one surfactant, preferably as described herein.
  • Example a fabric conditioning composition in accordance with the present disclosure
  • Compare a comparative fabric conditioning composition (having the highly-branched cyclic dextrin not present)
  • a 1500 mL beaker was charged with 1000 mL of deionized water.
  • the beaker was equipped with a stir blade and the mixer was set to 205 rpm.
  • 1 .69 g of the respective formulation (Exemplary or Comparative) was added to the deionized water and was mixed for 1 minute.
  • 20 2x2 inch 100% knit cotton swatches were added to each beaker and were mixed for 15 minutes.
  • the fabrics were removed from the beaker with clean gloves and were squeezed to remove excess water. The fabrics were unfolded, placed flat onto a drying rack and were air dried overnight at room temperature.
  • each 2x2 inch swatch was draped over a 50 mL beaker.
  • 100 pL of four different body odor compositions (butyric acid, octanoic acid, isovaleric acid, and 3-mercapto-2-methylpentan-1- ol) was spiked onto each swatch.
  • body odor compositions butyric acid, octanoic acid, isovaleric acid, and 3-mercapto-2-methylpentan-1- ol
  • DHS GCMS dynamic headspace and gas chromatography coupled to mass spectrometry
  • DHS GCMS functions to extract and concentrate volatile organic compounds (VOCs) from liquid or solid samples, and to thereafter analyze the amount and composition of the VOCs thus extracted.
  • the DHS GCMS experiment was then run, and the results therefrom analyzed using statistical analysis.
  • ANOVA analysis of variance
  • the p-values associated with the DHS GCMS testing are significantly below the confidence threshold of 0.05, meaning that the body odor VOCs extracted from the Example swatches was statistically significantly less than the body odor VOCs extracted from the Comparison swatches. This demonstrates that in post-wear applications, the compositions for the present disclosure effectively function to reduce the amount of body odor perceptible on fabrics.
  • the present disclosure has provided fabric conditioning compositions that include highly-branched cyclic dextrin as a malodor control agent.
  • the highly- branched cyclic dextrin compounds have been discovered and demonstrated to be highly-effective in removing or eliminating the perception of these malodors within washed fabrics.
  • Example 2 Fabric refreshers such as malodor removing sprays
  • the product to be tested is a malodor removing spray.
  • a textile refresher with 0.1 wt.-% cluster dextrin has been compared to a cleaner composition with 0.1 wt.-% cyclodextrin, a textile refresher with 0.01 wt.-% TegoSorb (a commercially available malodor control agent from Evonik) and a commercially available product (Febreze pet smells).
  • Example 3 Liquid laundry detergent compositions
  • Sulfides dimethylsulfide, dimethytrisulfide
  • Acids butyric acid, isovaleric acid, caproic acid, short chain unsaturated carboxylic acids
  • Table 5 Intensity of malodor (results after 4h on cotton).
  • Table 6 Intensity of malodor (results after 4h on Polyester).
  • Table 7 Intensity of malodor (results after 4h on PES /CO mix (50/50)).

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Abstract

La présente invention concerne une composition de conditionnement de tissu comprenant un agent adoucissant de tissu, une dextrine cyclique hautement ramifiée, et de l'eau, à une composition de rafraîchissement de tissu comprenant au moins une dextrine cyclique hautement ramifiée en une quantité d'au moins 0,01 % en poids, sur la base du poids total de la composition de rafraîchissement de tissu, et une composition de détergent à lessive liquide comprenant au moins une dextrine cyclique hautement ramifiée en une quantité d'au moins 0,01 % en poids sur la base du poids total de la composition de détergent à lessive liquide, ainsi qu'un procédé de blanchissage de tissu, un procédé de réduction ou d'élimination de mauvaises odeurs et l'utilisation de la dextrine cyclique hautement ramifiée pour réduire ou éliminer les mauvaises odeurs.
PCT/EP2022/073383 2021-08-24 2022-08-23 Dextrines cycliques hautement ramifiées en tant qu'agents de lutte contre les mauvaises odeurs Ceased WO2023025751A1 (fr)

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US17/445,783 US20230063888A1 (en) 2021-08-24 2021-08-24 Fabric Conditioning Compositions Including Highly Branched Cyclic Dextrin and Methods for Using the Same
US17/445,783 2021-08-24
DE102022112327 2022-05-17
DE102022112329.4 2022-05-17
DE102022112327.8 2022-05-17
DE102022112329 2022-05-17

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WO2024094363A1 (fr) * 2022-10-31 2024-05-10 Henkel Ag & Co. Kgaa Dextrine cyclique hautement ramifiée dans des agents cosmétiques pour le traitement de fibres de kératine
WO2024193924A1 (fr) * 2023-03-20 2024-09-26 Unilever Ip Holdings B.V. Composition pour réduire les mauvaises odeurs d'urine
WO2024223257A1 (fr) * 2023-04-24 2024-10-31 Unilever Ip Holdings B.V. Composition pour réduire les mauvaises odeurs

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US20150159318A1 (en) * 2012-05-25 2015-06-11 Lion Corporation Treatment composition for textile goods
JP2014084447A (ja) * 2012-10-26 2014-05-12 Lion Corp 繊維製品用の液体洗浄剤
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WO2015167221A1 (fr) * 2014-04-28 2015-11-05 주식회사 엘지생활건강 Composition pour l'élimination de molécules non souhaitées
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024094363A1 (fr) * 2022-10-31 2024-05-10 Henkel Ag & Co. Kgaa Dextrine cyclique hautement ramifiée dans des agents cosmétiques pour le traitement de fibres de kératine
WO2024193924A1 (fr) * 2023-03-20 2024-09-26 Unilever Ip Holdings B.V. Composition pour réduire les mauvaises odeurs d'urine
WO2024223257A1 (fr) * 2023-04-24 2024-10-31 Unilever Ip Holdings B.V. Composition pour réduire les mauvaises odeurs
WO2024223259A1 (fr) * 2023-04-24 2024-10-31 Unilever Ip Holdings B.V. Composition solide pour la lessive
WO2024223258A1 (fr) * 2023-04-24 2024-10-31 Unilever Ip Holdings B.V. Composition de traitement de lessive liquide

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