WO2023180426A1 - Composition for the removal of stains and malodour - Google Patents
Composition for the removal of stains and malodour Download PDFInfo
- Publication number
- WO2023180426A1 WO2023180426A1 PCT/EP2023/057421 EP2023057421W WO2023180426A1 WO 2023180426 A1 WO2023180426 A1 WO 2023180426A1 EP 2023057421 W EP2023057421 W EP 2023057421W WO 2023180426 A1 WO2023180426 A1 WO 2023180426A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- composition
- composition according
- stains
- oxygen transfer
- total weight
- Prior art date
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- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 description 1
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- QWDJLDTYWNBUKE-UHFFFAOYSA-L magnesium bicarbonate Chemical compound [Mg+2].OC([O-])=O.OC([O-])=O QWDJLDTYWNBUKE-UHFFFAOYSA-L 0.000 description 1
- 229910000022 magnesium bicarbonate Inorganic materials 0.000 description 1
- 239000002370 magnesium bicarbonate Substances 0.000 description 1
- 235000014824 magnesium bicarbonate Nutrition 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 1
- 235000019341 magnesium sulphate Nutrition 0.000 description 1
- 150000002703 mannose derivatives Chemical class 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 150000002926 oxygen Chemical class 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 229920002006 poly(N-vinylimidazole) polymer Polymers 0.000 description 1
- 229920000768 polyamine Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001184 polypeptide Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 102000004196 processed proteins & peptides Human genes 0.000 description 1
- 108090000765 processed proteins & peptides Proteins 0.000 description 1
- 235000004252 protein component Nutrition 0.000 description 1
- 235000018102 proteins Nutrition 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- DNXIASIHZYFFRO-UHFFFAOYSA-N pyrazoline Chemical compound C1CN=NC1 DNXIASIHZYFFRO-UHFFFAOYSA-N 0.000 description 1
- 150000003219 pyrazolines Chemical class 0.000 description 1
- 239000006254 rheological additive Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 229940048842 sodium xylenesulfonate Drugs 0.000 description 1
- GIPRGFRQMWSHAK-UHFFFAOYSA-M sodium;2-propan-2-ylbenzenesulfonate Chemical group [Na+].CC(C)C1=CC=CC=C1S([O-])(=O)=O GIPRGFRQMWSHAK-UHFFFAOYSA-M 0.000 description 1
- QUCDWLYKDRVKMI-UHFFFAOYSA-M sodium;3,4-dimethylbenzenesulfonate Chemical compound [Na+].CC1=CC=C(S([O-])(=O)=O)C=C1C QUCDWLYKDRVKMI-UHFFFAOYSA-M 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 125000005504 styryl group Chemical group 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000008163 sugars Chemical class 0.000 description 1
- 239000000375 suspending agent Substances 0.000 description 1
- 235000013616 tea Nutrition 0.000 description 1
- 150000003623 transition metal compounds Chemical class 0.000 description 1
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
- C11D3/48—Medical, disinfecting agents, disinfecting, antibacterial, germicidal or antimicrobial 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
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/06—Powder; Flakes; Free-flowing mixtures; Sheets
-
- 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
- C11D3/38—Products with no well-defined composition, e.g. natural products
- C11D3/386—Preparations containing enzymes, e.g. protease or amylase
-
- 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
- C11D3/39—Organic or inorganic per-compounds
- C11D3/3902—Organic or inorganic per-compounds combined with specific additives
-
- 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
- C11D3/39—Organic or inorganic per-compounds
- C11D3/3902—Organic or inorganic per-compounds combined with specific additives
- C11D3/3905—Bleach activators or bleach catalysts
- C11D3/3907—Organic compounds
- C11D3/3915—Sulfur-containing 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
- C11D3/39—Organic or inorganic per-compounds
- C11D3/3902—Organic or inorganic per-compounds combined with specific additives
- C11D3/3905—Bleach activators or bleach catalysts
- C11D3/3907—Organic compounds
- C11D3/3917—Nitrogen-containing 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
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/12—Soft surfaces, e.g. textile
Definitions
- the present invention relates to a composition, for example a laundry detergent or a laundry additive, to a method of laundering a fabric in a laundry washing machine, to a method of cleaning a stain on a laundry item, and to the use of the composition for the removal of stains and/or the removal of malodour from a garment.
- a composition for example a laundry detergent or a laundry additive, to a method of laundering a fabric in a laundry washing machine, to a method of cleaning a stain on a laundry item, and to the use of the composition for the removal of stains and/or the removal of malodour from a garment.
- the removal of stains is normally achieved using bleaching agents, surfactants and/or enzymes. For example, enzymatic stains require enzymes, oil-based stains require enzymes or a combination of surfactants, bleachable stains require a bleaching agent to remove them.
- Detergent compositions usually contain a bleaching agent and a bleach activator. It is known from document EP0446982 A2, that it is possible to enhance the activity of the bleach activator by adding an oxygen transfer agent. However, this document is silent about compositions having a high amount of bleaching agent with increased stain removal properties.
- compositions comprising bleaching agents there is a safety constraint which may limit the amount of these agents in a composition.
- a composition comprising about 40 wt.% of a bleaching agent cannot just be re-formulated as a concentrated composition comprising 80 wt.% of the bleaching agent.
- stain removal compositions normally comprise up to 50 wt.% of bleaching agents.
- polyphenols which are naturally occurring compounds having multiples of phenol units.
- polyphenolcontaining foods are tea, red wine, curry, and chocolate. These compounds have been used as dyes and for tanning garments; which gives an idea that it is complicated to remove stains of polyphenolic compound soils from a garment.
- Curcumin is a yellow active ingredient in turmeric spice; it is a hydrophobic polyphenol derived from the rhizome of turmeric (Curcuma longa). Foods prepared with blends of spices containing turmeric or curry lead to stains that are impossible to remove with common laundry detergents, chlorine bleaches, existing laundry additives or any home remedies. Turmeric is a strong natural colorant and the additional presence of oil, fat, meat and other protein components like egg and milk make this type of stains even more complicated to clean. This means that in cuisines where curry/turmeric plays an important role, people are left with no solution and they have no choice than to cope with curry/turmeric stains residues on their garments, even after washing.
- Clothing is also where germs and bacteria can grow, allowing the formation of malodour.
- laundry detergents and fragrance boosters try to overcome this issue by introducing a substantial amount of scent, for example in the form of microcapsules, that covers the undesired smells.
- scent for example in the form of microcapsules
- the unpleasant malodour will still be present, or can rebloom, over time or upon ironing.
- Regular laundry compositions are useful for cleaning clothes, meaning that grime and dirt are removed.
- stains malodour removal, elimination or reduction of bacteria, viruses and/or fungi (i.e. sanitization), and, in the case of white garments, improved whiteness, additional laundry compositions need to be used.
- washing operations are normally performed at temperatures between 40°C and 60°C; and for sanitization purposes as high as 90°C.
- a composition preferably a laundry detergent composition or a laundry additive composition, which provides removal of stains, in particular stains comprising a polyphenolic compound such as turmeric and/or curry stains, removal of malodour and preferably whiteness improvement and elimination or reduction of bacteria, viruses and/or fungi (i.e., sanitization) of a garment being washed with such composition.
- stains in particular stains comprising a polyphenolic compound such as turmeric and/or curry stains
- removal of malodour preferably whiteness improvement and elimination or reduction of bacteria, viruses and/or fungi (i.e., sanitization) of a garment being washed with such composition.
- a composition preferably a laundry detergent composition or a laundry additive, which provides a solution for these needs; in particular, when a garment is washed with the composition at temperatures lower than those normally used in washing operations.
- the present invention relates to a composition
- a composition comprising at least one bleaching agent, at least one bleach activator, at least one oxygen transfer agent, and at least one protease
- the composition comprises between 51 wt.% and 59 wt.% of said at least one bleaching agent, based on the total weight of the composition; and the composition comprises between 0.08 wt.% and 5 wt.% of said at least one oxygen transfer agent, based on the total weight of the composition, wherein said at least one oxygen transfer agent is selected from the group consisting of 3-methyl-1 ,2- benzisothiazol-1 ,1 -dioxide, 1 ,2,3-Benzoxathiazine, 2,2-dioxide, and combinations thereof; wherein the weight ratio of said at least one bleaching agent to said at least one oxygen transfer agent is less than 650:1 .
- said composition comprises:
- said at least one bleaching agent comprises at least one source of active oxygen selected from the group consisting of an inorganic peroxide, an organic peracid, hydrogen peroxide, and combinations thereof; preferably selected from the group consisting of sodium percarbonate, e-phthalimido-peroxy-hexanoic acid (PAP), peracetic acid, potassium peroxymonosulfate (KMPS), and combinations thereof; most preferably wherein said at least one bleaching agent comprises or consist of sodium percarbonate.
- PAP e-phthalimido-peroxy-hexanoic acid
- KMPS potassium peroxymonosulfate
- the weight ratio of the said at least one bleaching agent to the said at least one oxygen transfer agent is less than 500:1 , preferably between 10:1 and 400:1 , more preferably between 100:1 and 300:1 .
- said at least one bleach activator is selected from the group consisting of tetraacetylethylendiamine (TAED), acetylated triazine derivatives, acetylated glycoluriles, acylimides, acetylated phenolsulfonates, acetylated phenol carbonic acids, sodium nonanoyloxybenzenesulfonate (NOBS), 4-decanoyloxybenzoic Acid (DOBA), carbonic acid anhydrides, acetylated sugar derivatives, N- acetylated lactams, and combinations thereof; preferably said at least one bleach activator is tetra acetylethylenediamine (TAED).
- TAED tetraacetylethylendiamine
- TAED acetylated triazine derivatives
- acetylated glycoluriles acylimides
- acetylated phenolsulfonates acety
- said at least one oxygen transfer agent is 3-methyl-1 ,2- benzisothiazol-1 ,1 -dioxide.
- said composition further comprises between 0.001 wt.% and 10 wt.% of one or more further enzymes, based on the total weight of the composition, preferably between 0.001 wt.% and 8 wt.%, more preferably between 0.001 wt.% and 6 wt.%, even more preferably between 0.001 wt.% and 4 wt.%, most preferably between 0.001 wt.% and 2 wt.%; wherein said one or more further enzyme are preferably selected from the group consisting of a mannanase, a lipase, an amylase, a cellulase, and combinations thereof.
- said composition is a laundry detergent composition or a laundry additive composition.
- the pH of a dilution of 1 :100 at 20°C of the composition is between 9 and 12, preferably between 9.5 and 11.5, more preferably between 10 and 1 1.
- the invention in a second aspect, relates to a method of laundering a fabric in laundry washing machine comprising adding a composition according to any of the preceding claims to the washing machine and conducting the wash, wherein preferably the wash liquor is at a temperature higher than 15°C and lower than 40°C, more preferably lower than 35°C, even more preferably lower than 30°C, most preferably lower than 25°C; and wherein preferably between 0.25 g and 5 g of the composition are added to the laundry washing machine per litre of washing liquor, more preferably between 0.5 g and 3 g, most preferably between 0.75 g and 2.5 g.
- the invention relates to a method of cleaning a stain on a laundry item comprising:
- composition according to the first aspect to a bucket with water and soaking for a predetermined length of time.
- the invention relates to a use of the composition according to the first aspect in a laundry washing and/or fabric treatment operation.
- the invention relates to a use of the composition according to the first aspect for the removal of stains, preferably stains comprising a polyphenolic compound, more preferably wherein the stains comprise turmeric and/or curry stains and/or for the removal of malodour from a garment.
- the invention relates to a use of the composition according to the first aspect for the reduction or elimination of bacteria, viruses and/or fungi from a garment.
- the garment is made of cotton, synthetic materials or a combination thereof, preferably said synthetic material is polyester.
- Ganz value / Instrumental evaluation as used in the present application means: whiteness degree simulated as Ganz-Griesser value as specified in the A.LS.E. Laundry detergent testing guidelines.
- Protein as used in the present application means: class of enzymes that catalyse the breakdown of proteins into smaller polypeptides or single amino acids.
- Amylase as used in the present application means: class of enzymes that catalyse the hydrolysis of starch into sugars such as glucose and maltose.
- Mannose as used in the present application means: sugar monomer of the aldohexose series of carbohydrates.
- Lipase as used in the present application means: class of enzymes that catalyse the hydrolysis of fats or lipids.
- Cellulase as used in the present application means: class of enzymes that catalyse the cellu lolysis or hydrolysis of cellulose.
- the composition comprises between 51 wt.% and 59 wt.% of said at least one bleaching agent, based on the total weight of the composition;
- the composition comprises between 0.08 wt.% and 5 wt.% of said at least one oxygen transfer agent, based on the total weight of the composition, wherein said at least one oxygen transfer agent is selected from the group consisting of 3- methyl-1 ,2-benzisothiazol-1 ,1 -dioxide, 1 ,2,3-Benzoxathiazine, 2,2-dioxide, and combinations thereof; wherein the weight ratio of said at least one bleaching agent to said at least one oxygen transfer agent is less than 650:1 .
- the present inventors have observed that by carefully selecting the amounts of the at least one bleaching agent and the amounts and type of the at least one oxygen transfer agent, a composition is obtained, which provides a better stain removal, malodour removal and preferably also improved whiteness of fabrics than compositions not containing these amounts of ingredients and an oxygen transfer agent selected from the group consisting of 3-methyl-1 ,2-benzisothiazol-1 ,1 -dioxide, 1 ,2,3-Benzoxathiazine, 2,2- dioxide, and combinations thereof.
- oxygen transfer agents react in the washing liquor to produce oxaziridines, which are responsible for the improved stain removal.
- compositions according to the invention allow for the removal of stains and malodour, especially the removal of turmeric and/or curry stains, even at temperatures lower than those usually used in automatic laundry washing (30°C or 40°C). It is believed that by adding the oxygen transfer agent to a detergent composition comprising a bleaching agent and a bleach activator, the activation energy needed to bleach a stain is reduced; this means that, the compositions according to the invention allow for the removal of stains from the fabric at lower temperatures, for example, 20°C or even 15°C, and faster than a composition not containing the oxygen transfer agent.
- the present inventors have observed a synergistic effect between all ingredients of the composition according to the invention, in particular between the oxygen transfer agent, the bleaching agent, the bleach activator, and the protease. This is evidenced by the combined removal of stains and malodour and optionally the whiteness improvement.
- composition according to the invention in particular in garments made of polyester, is improvement of whites or whitening.
- oxygen transfer agents in the compositions according to the invention produce oxaziridines, which have a hydrophobic nature and can interact with polyethylene terephthalate in polyesters textiles. This interaction allows for a better whitening of the textiles.
- composition may comprise:
- said at least one oxygen transfer agent based on the total weight of the composition, preferably between 0.15 wt.% and 2 wt.%, more preferably between 0.20 wt.% and 1 wt.%.
- the at least one bleach activator is preferably selected from the group consisting of tetraacetylethylendiamine (TAED), acetylated triazine derivatives, acetylated glycoluriles, acylimides, acetylated phenolsulfonates, acetylated phenol carbonic acids, sodium nonanoyloxybenzenesulfonate (NOBS), 4-decanoyloxybenzoic Acid (DOBA), carbonic acid anhydrides, acetylated sugar derivatives, N- acetylated lactams, and combinations thereof; preferably said at least one bleach activator is tetra acetylethylenediamine (TAED).
- TAED tetraacetylethylendiamine
- TAED acetylated triazine derivatives
- acetylated glycoluriles acylimides
- acetylated phenolsulfonates ace
- the weight ratio of the said at least one bleaching agent to the said at least one oxygen transfer agent is less than 500:1 , preferably between 10:1 and 400:1 , more preferably between 100:1 and 300:1.
- the present inventors have observed that these weight ratios provide the best results in terms of stain removal, malodour removal, and/or reduction or elimination of bacteria, viruses and/or fungi from a garment. This also allows for the use of smaller amounts of compositions having between 51 wt.% and 59 wt.% of a bleaching agent in a laundry washing or fabric treatment operation.
- composition comprising 30 wt.% of a bleaching agent provides a certain effect
- amount of composition is reduced to 25 g
- the composition must comprise 60 % of the bleaching agent to provide the same effect.
- the present inventors have observed that if the weight ratio of the said at least one bleaching agent to the said at least one oxygen transfer agent is adjusted as mentioned above, similar, or better effects are obtained with 25 g of a composition comprising between 51 wt.% and 59 wt.% of the bleaching agent.
- composition according to the invention allows for the incorporation of more enzymes, which have a synergistic effect with the other elements of the composition.
- the composition may further comprise between 0.001 wt.% and 10 wt.% of one or more further enzymes, based on the total weight of the composition, preferably between 0.001 wt.% and 8 wt.%, more preferably between 0.001 wt.% and 6 wt.%, even more preferably between 0.001 wt.% and 4 wt.%, most preferably between 0.001 wt.% and 2 wt.%; wherein said one or more further enzyme are preferably selected from the group consisting of a mannanase, a lipase, an amylase, a cellulase, and combinations thereof.
- compositions of the present invention may take any form, e.g., solid, liquid, gel, powder or mixtures thereof.
- the compositions will be in the form of a solid or a powder.
- the composition is preferably a laundry detergent composition or a laundry additive composition, more preferably the composition is a laundry additive composition.
- the composition further comprises a rheology modifier agent, a fragrance, a phase stabilizer, a dye, a softening agent, a chelating agent, an anti-bacterial agent, a transition metal compound, an anti-foaming agent, a preservative, one or more surfactants, one or more fillers, a dye-transfer inhibitor, an optical brightener, or combinations thereof.
- a rheology modifier agent e.g., a fragrance, a phase stabilizer, a dye, a softening agent, a chelating agent, an anti-bacterial agent, a transition metal compound, an anti-foaming agent, a preservative, one or more surfactants, one or more fillers, a dye-transfer inhibitor, an optical brightener, or combinations thereof.
- the composition may comprise one or more non-ionic surfactants.
- the amount of said one or more non-ionic surfactants in the composition may be between 0.01 wt.% and 10 wt.%, based on the total weight of the composition, preferably between 0.05 and 5 wt.%, more preferably between 0.1 and 1.0 wt.%.
- non-ionic surfactants are ethoxylated alcohols and ethoxylated alkyl phenols having the formula R 1 (OCH 2 CH 2 ) n OH; wherein R 1 is an aliphatic hydrocarbon radicals containing between 10 and 24 carbon atoms or alkyl phenyl radicals in which the alkyl groups contain from 10 to 22 carbon atoms; and n has an average value of from 1 to 10.
- the one or more non-ionic surfactants have the formula R 1 (OCH 2 CH 2 ) n OH; wherein R 1 is an alkyl moiety having between 10 and 24 carbon atoms, and n has an average value of from 1 to 10.
- R 1 when R 1 is defined as being a Ci 2 -14 moiety, it is meant an alkyl moiety having between 12 and 14 carbon atoms.
- R 1 when R 1 is defined as being a Ci 2 -16 moiety, it is meant an alkyl moiety having between 12 and 16 carbon atoms.
- R 1 when R 1 is defined as being a C13 moiety, it is meant an alkyl moiety having 13 carbon atoms.
- the composition may further comprise any conventional anionic surfactant or a mixture of them used in detergent products.
- anionic surfactants include, for example, the alkyl benzene sulfonic acids and their salts as well as alkoxylated or non-alkoxylated alkyl sulfate materials.
- the anionic surfactants may be present in acid form or in neutralized (e.g., salt) form.
- the anionic surfactants may be linear, branched, or a mixture thereof.
- An example of an anionic surfactant is sodium cumenesulphonate.
- anionic surfactants are the alkali metal salts of C10-16 alkyl benzene sulphonic acids or Cn-14 alkyl benzene sulphonic acids.
- alkoxylated alkyl sulphate surfactants such as ethoxylated alkyl sulphate surfactants.
- alkoxylated alkyl sulphate surfactants such as ethoxylated alkyl sulphate surfactants.
- Such materials are also known as alkyl ether sulphates or alkyl polyethoxylate sulphates.
- the composition comprises:
- non-ionic surfactants based on the total weight of the composition, preferably between 0.05 wt.% and 5 wt.%, more preferably between 0.1 wt.% and 1 .0 wt.%; wherein said one or more non- ionic surfactants have the formula R 1 (OCH2CH2) n OH; wherein R 1 is an alkyl moiety having between 12 and 16 carbon atoms, and n has an average value of from 3 to 6, preferably between 4 and 5; and
- one or more anionic surfactants preferably comprise a sodium salt of linear alkyl benzene sulfonate, sodium xylene sulfonate, an alcohol sulphate, an alfa olefin sulfonate, or combinations thereof.
- non-ionic surfactants and anionic surfactants in, for example, this preferred embodiment, is important for the compatibility of the composition with the high amounts of the bleaching agent, but also for controlling the foaming, detergency, flowability, and other physical and chemical properties of the composition.
- the composition may optionally contain a filler.
- Suitable fillers include bicarbonates and carbonates of metals, such as alkali metals and alkaline earth metals. Examples include sodium carbonate, sodium bicarbonate, calcium carbonate, calcium bicarbonate, magnesium carbonate, magnesium bicarbonate and sesqui-carbonates of sodium, calcium and/or magnesium. Other examples include metal carboxy glycine and metal glycine carbonate. Chlorides, such as sodium chloride; citrates; and sulfates, such as sodium sulfate, calcium sulfate and magnesium sulfate, may also be employed.
- the composition comprises at least one filler selected from the group consisting of alkyl carbonate, alkyl sulfate and combinations thereof; more preferably selected from the group consisting of sodium carbonate, sodium sulfate and combinations thereof.
- the composition may comprise between 0.1 wt.% and 80 wt.% of said at least one filler, based on the total weight of the composition, preferably between 10 wt.% and 75 wt.%, more preferably between 20 wt.% and 70 wt.%.
- the composition may comprise an optical brightener, preferably selected from the group consisting of stilbene, benzidine, benzothiazole, benzimidazole, benzoxazole, coumarin, pyrazoline, naphtalimide, naphtoxazole, distyryl-biphenyl, benzonitrile, benzopyrazole, including their derivatives and substituted compounds, and combinations thereof.
- an optical brightener preferably selected from the group consisting of stilbene, benzidine, benzothiazole, benzimidazole, benzoxazole, coumarin, pyrazoline, naphtalimide, naphtoxazole, distyryl-biphenyl, benzonitrile, benzopyrazole, including their derivatives and substituted compounds, and combinations thereof.
- Suitable optical brighteners include 4,4’-bis(2-sulphostyryl)diphenyl, 7-Diethylamino-4- methylcoumarin, benzoxazole, 2,2'-(1 ,2-ethenediyl) bis[5-methyl] including their substituted compounds, 4,4'-bis (triazine-2ylamino) stilbene-2,2'-disulphonic acid, mono (azol-2-yl) stilbene and bis (azol-2yl) stilbene; styryl derivatives of benzene and biphenyl, such as 1 ,4-bis (styryl) benzene, 4,4'-bis (styryl) benzene, 4,4'-bis- (styryl) biphenyl, 4,4'- bis (sulphostryryl) biphenyl sodium salt; pyrazolines such as 1 , 3-diphenyl-2-pyrazoline; bis (benzene-2-yl) derivatives, bis (benzoxa
- the composition may further comprise a dye-transfer inhibitor.
- dyetransfer inhibitors sometimes called dye anti-redisposition agents or soil suspending agents
- Preferred dyetransfer inhibitors include polyvinylalcohol, fatty amides, sodium carboxylmethyl cellulose, hydroxypropyl methyl cellulose, polyvinylpyrollidone, polyvinylimidazole, polyvinyloxazolidone, polyamine N-oxide polymers and copolymers or N-vinylpyrollidone and N-vinylimidazole.
- the composition may comprise between 0.001 wt.% and 1 .5 wt.% of at least one dye transfer inhibitor, based on the total weight of the composition, preferably between 0.01 wt.% and 1 .0 wt.%, more preferably between 0.05 wt.% and 0.75 wt.%.
- the composition is a laundry detergent composition or a laundry additive composition in form of a solid or a powder; which comprises:
- At least one bleaching agent preferably consisting of sodium percarbonate
- At least one oxygen transfer agent preferably consisting of 3-methyl-1 ,2-benzisothiazol-1 ,1 -dioxide
- the invention in a second aspect, relates to a method of laundering a fabric in a laundry washing machine comprising adding a composition according to any of the preceding claims to the washing machine and conducting the wash, wherein preferably the wash liquor is at a temperature higher than 15°C and lower than 40°C, more preferably lower than 35°C, even more preferably lower than 30°C, most preferably lower than 25°C; and wherein preferably between 0.25 g and 5 g of the composition are added to the laundry washing machine per litre of washing liquor, more preferably between 0.5 g and 3 g, most preferably between 0.75 g and 2.5 g.
- the invention relates to a method of cleaning a stain on a laundry item comprising:
- composition according to the first aspect to a bucket with water and soaking for a predetermined length of time.
- the composition When the composition is added to a bucket with water, soaking is performed for a predetermined length of time, which may be between 30 minutes and 2 hours, preferably between 45 minutes and 90 minutes, more preferably for about one hour. It should be noted that the temperature of the washing liquor may be between 10°C and 60 °C, preferably between 10 °C and 45 °C.
- the present inventors have observed that the composition according to the first aspect of the invention removes stains, in particular turmeric and/or curry stains, and malodour even at lower temperatures than those usually used in washing operation, for example at 20 °C.
- the method according to the second or third aspect allows for the removal of stains and malodour, and preferably whiteness improvement, even at temperatures of for example 16°C. If the washing temperature is reduced, then energy consumption and carbon footprint are also reduced.
- the invention relates to a use of the composition according to the first aspect for the reduction or elimination of bacteria, viruses and/or fungi from a garment.
- said garment is made of cotton, synthetic materials or a combination thereof, preferably wherein said synthetic material is polyester.
- the invention relates to the use of the composition according to the first aspect for the removal of stains, preferably stains comprising a polyphenolic compound such as turmeric and/or curry stains, the removal of malodour from a garment and the reduction of elimination of bacteria, viruses and/or fungi from a garment.
- stains preferably stains comprising a polyphenolic compound such as turmeric and/or curry stains
- the removal of malodour from a garment preferably stains comprising a polyphenolic compound such as turmeric and/or curry stains
- the removal of malodour from a garment preferably a polyphenolic compound such as turmeric and/or curry stains
- Formulation A is a comparative composition, not according to the invention.
- Formulation 1 is a formulation according to the invention.
- Oxygen transfer agent 3-methyl-1 ,2-benzisothiazol-1 ,1 -dioxide.
- the amounts of enzymes are the amounts of these as received from a supplier.
- fragrances such as: fragrances, optical brighteners, thickeners, and/or fillers.
- Formulation B is a comparative formulation, not according to the invention.
- Formulation 2 is a formulation according to the invention. Table 2.
- Oxygen transfer agent 3-methyl-1 ,2-benzisothiazol-1 ,1 -dioxide.
- the amounts of enzymes are the amounts of these as received from a supplier. In both formulations the same type and amounts of enzymes are used.
- fragrances such as: fragrances, optical brighteners, thickeners, and/or fillers.
- the commercial detergent in Table 3 is Ariel liquid as sold in the UK.
- Stain removal was determined using a Datacolor 650 spectrophotometer and by measuring the Y-value of the technical stain after washing.
- Stain removal was determined using a Datacolor 700 spectrophotometer and by measuring the Y-value of the technical stain after washing.
- stain removal performance of the detergent system comprising Formulation 1 is compared with the stain removal performance of the detergent system comprising Formulation A (Da).
- “0” means no difference regarding stain removal performance, compared to the detergent system comprising Formulation A, and “+” means improved stain removal performance.
- - removal of stains especially of stains comprising a polyphenolic compound; - malodour removal; and preferably also whiteness improvement in a garment and reduction or elimination of bacteria, viruses and/or fungi from a garment.
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Abstract
The present invention relates to a composition comprising at least one bleach activator, at least one oxygen transfer agent, and at least one protease, wherein the composition comprises between 51 wt.% and 59 wt.% of said at least one bleaching agent, based on the total weight of the composition; and the composition comprises between 0.08 wt.% and 5 wt.% of said at least one oxygen transfer agent, based on the total weight of the composition, wherein said at least one oxygen transfer agent is selected from the group consisting of 3-methyl-1,2-benzisothiazol-1,1-dioxide, 1,2,3-Benzoxathiazine, 2,2- dioxide, and combinations thereof; wherein the weight ratio of said at least one bleaching agent to said at least one oxygen transfer agent is less than 650:1. The invention further relates to a method of a laundering a fabric in a laundry washing machine and to the use of the composition for the removal of stains.
Description
Composition for the removal of stains and malodour
The present invention relates to a composition, for example a laundry detergent or a laundry additive, to a method of laundering a fabric in a laundry washing machine, to a method of cleaning a stain on a laundry item, and to the use of the composition for the removal of stains and/or the removal of malodour from a garment.
Background
Consumers associate desirability and wearability of a garment with characteristics such as e.g., absence of stains, good smell, elimination or reduction of bacteria, viruses and/or fungi (i.e. sanitization), and, in the case of white garments, improved whiteness. It is preferred when one or more of these characteristics are achieved using only one product. The removal of stains is normally achieved using bleaching agents, surfactants and/or enzymes. For example, enzymatic stains require enzymes, oil-based stains require enzymes or a combination of surfactants, bleachable stains require a bleaching agent to remove them.
Detergent compositions usually contain a bleaching agent and a bleach activator. It is known from document EP0446982 A2, that it is possible to enhance the activity of the bleach activator by adding an oxygen transfer agent. However, this document is silent about compositions having a high amount of bleaching agent with increased stain removal properties.
It will be recognized that there is a global trend towards products containing a higher concentration of actives. This translates into smaller products, which require less storage space, and can be better for the environment. In the case of compositions comprising bleaching agents, there is a safety constraint which may limit the amount of these agents in a composition. For example, compositions having 60 wt.% or more of a bleaching agent may need special shipment conditions; therefore, a composition comprising about 40 wt.% of a bleaching agent cannot just be re-formulated as a concentrated composition comprising 80 wt.% of the bleaching agent. Actually, stain removal compositions normally comprise up to 50 wt.% of bleaching agents.
When considering stain removal, some stains contain polyphenols, which are naturally occurring compounds having multiples of phenol units. Examples of polyphenolcontaining foods are tea, red wine, curry, and chocolate. These compounds have been
used as dyes and for tanning garments; which gives an idea that it is complicated to remove stains of polyphenolic compound soils from a garment.
Curcumin is a yellow active ingredient in turmeric spice; it is a hydrophobic polyphenol derived from the rhizome of turmeric (Curcuma longa). Foods prepared with blends of spices containing turmeric or curry lead to stains that are impossible to remove with common laundry detergents, chlorine bleaches, existing laundry additives or any home remedies. Turmeric is a strong natural colorant and the additional presence of oil, fat, meat and other protein components like egg and milk make this type of stains even more complicated to clean. This means that in cuisines where curry/turmeric plays an important role, people are left with no solution and they have no choice than to cope with curry/turmeric stains residues on their garments, even after washing.
Clothing is also where germs and bacteria can grow, allowing the formation of malodour. Often laundry detergents and fragrance boosters try to overcome this issue by introducing a substantial amount of scent, for example in the form of microcapsules, that covers the undesired smells. However, once the volatile fragrance molecules leave the fabric, the unpleasant malodour will still be present, or can rebloom, over time or upon ironing.
Regular laundry compositions are useful for cleaning clothes, meaning that grime and dirt are removed. However, for the removal of stains, malodour removal, elimination or reduction of bacteria, viruses and/or fungi (i.e. sanitization), and, in the case of white garments, improved whiteness, additional laundry compositions need to be used.
Normally, people are required to follow long cleaning procedures, involving pretreatment, vigorous rubbing action, or washings at high temperatures to achieve acceptable stain and malodour removal. For example, washing operations are normally performed at temperatures between 40°C and 60°C; and for sanitization purposes as high as 90°C.
Hence, there is a need of a composition, preferably a laundry detergent composition or a laundry additive composition, which provides removal of stains, in particular stains comprising a polyphenolic compound such as turmeric and/or curry stains, removal of malodour and preferably whiteness improvement and elimination or reduction of bacteria, viruses and/or fungi (i.e., sanitization) of a garment being washed with such composition.
It is an object of the present invention to provide a composition, preferably a laundry detergent composition or a laundry additive, which provides a solution for these needs; in particular, when a garment is washed with the composition at temperatures lower than those normally used in washing operations.
It is an object of the present invention to provide a method of laundering a fabric in a laundry washing machine.
It is an object of the present invention to provide a use of a composition for the removal of stains, preferably stains comprising a polyphenolic compound, more preferably wherein the stains comprise turmeric and/or curry stains, and/or for the removal of malodour from a garment and/or for the reduction or elimination of bacteria, viruses and/or fungi from a garment.
Summary of the invention
In a first aspect, the present invention relates to a composition comprising at least one bleaching agent, at least one bleach activator, at least one oxygen transfer agent, and at least one protease, wherein: the composition comprises between 51 wt.% and 59 wt.% of said at least one bleaching agent, based on the total weight of the composition; and the composition comprises between 0.08 wt.% and 5 wt.% of said at least one oxygen transfer agent, based on the total weight of the composition, wherein said at least one oxygen transfer agent is selected from the group consisting of 3-methyl-1 ,2- benzisothiazol-1 ,1 -dioxide, 1 ,2,3-Benzoxathiazine, 2,2-dioxide, and combinations thereof; wherein the weight ratio of said at least one bleaching agent to said at least one oxygen transfer agent is less than 650:1 .
In one embodiment, said composition comprises:
- between 52 wt.% and 58 wt.% of said at least one bleaching agent, based on the total weight of the composition, preferably between 53 wt.% and 57 wt.%; and/or
- between 0.001 wt.% and 5 wt.% of said at least one protease, based on the total weight of the composition, preferably between 0.001 wt.% and 2.5 wt.%, more preferably between 0.001 wt.% and 1 wt.%; and/or
- between 0.1 wt.% and 4 wt.% of said at least one oxygen transfer agent, based on the total weight of the composition, preferably between 0.15 wt.% and 2 wt.%, more preferably between 0.20 wt.% and 1 wt.%.
In another embodiment, said at least one bleaching agent comprises at least one source of active oxygen selected from the group consisting of an inorganic peroxide, an organic peracid, hydrogen peroxide, and combinations thereof; preferably selected from the group consisting of sodium percarbonate, e-phthalimido-peroxy-hexanoic acid (PAP), peracetic acid, potassium peroxymonosulfate (KMPS), and combinations thereof; most preferably wherein said at least one bleaching agent comprises or consist of sodium percarbonate.
In a preferred embodiment, the weight ratio of the said at least one bleaching agent to the said at least one oxygen transfer agent is less than 500:1 , preferably between 10:1 and 400:1 , more preferably between 100:1 and 300:1 .
In an embodiment, said composition comprises between 0.1 wt.% and 20 wt.% of said at least one bleach activator, based on the total weight of the composition, preferably between 0.25 wt.% and 15 wt.%, more preferably between 0.5 wt.% and 10 wt.%, most preferably between 1 wt.% and 5 wt.%.
In another embodiment, said at least one bleach activator is selected from the group consisting of tetraacetylethylendiamine (TAED), acetylated triazine derivatives, acetylated glycoluriles, acylimides, acetylated phenolsulfonates, acetylated phenol carbonic acids, sodium nonanoyloxybenzenesulfonate (NOBS), 4-decanoyloxybenzoic Acid (DOBA), carbonic acid anhydrides, acetylated sugar derivatives, N- acetylated lactams, and combinations thereof; preferably said at least one bleach activator is tetra acetylethylenediamine (TAED).
In a preferred embodiment, said at least one oxygen transfer agent is 3-methyl-1 ,2- benzisothiazol-1 ,1 -dioxide.
In an embodiment, said composition further comprises between 0.001 wt.% and 10 wt.% of one or more further enzymes, based on the total weight of the composition, preferably between 0.001 wt.% and 8 wt.%, more preferably between 0.001 wt.% and 6 wt.%, even more preferably between 0.001 wt.% and 4 wt.%, most preferably between 0.001 wt.% and 2 wt.%; wherein said one or more further enzyme are preferably selected from the group consisting of a mannanase, a lipase, an amylase, a cellulase, and combinations thereof.
In another embodiment, said composition is a laundry detergent composition or a laundry additive composition.
In another embodiment, the pH of a dilution of 1 :100 at 20°C of the composition is between 9 and 12, preferably between 9.5 and 11.5, more preferably between 10 and 1 1.
In another embodiment, the composition is in the form of a solid or a powder.
In a second aspect, the invention relates to a method of laundering a fabric in laundry washing machine comprising adding a composition according to any of the preceding claims to the washing machine and conducting the wash, wherein preferably the wash liquor is at a temperature higher than 15°C and lower than 40°C, more preferably lower than 35°C, even more preferably lower than 30°C, most preferably lower than 25°C; and wherein preferably between 0.25 g and 5 g of the composition are added to the laundry washing machine per litre of washing liquor, more preferably between 0.5 g and 3 g, most preferably between 0.75 g and 2.5 g.
In a third aspect, the invention relates to a method of cleaning a stain on a laundry item comprising:
- contacting the stain directly with a composition according to the first aspect before the laundry item is washed, or
- adding a composition according to the first aspect directly into the drum of washing machine, or
- adding a composition according to the first aspect to a bucket with water and soaking for a predetermined length of time.
In a fourth aspect, the invention relates to a use of the composition according to the first aspect in a laundry washing and/or fabric treatment operation.
In a fifth aspect, the invention relates to a use of the composition according to the first aspect for the removal of stains, preferably stains comprising a polyphenolic compound, more preferably wherein the stains comprise turmeric and/or curry stains and/or for the removal of malodour from a garment.
In a sixth aspect, the invention relates to a use of the composition according to the first aspect for the reduction or elimination of bacteria, viruses and/or fungi from a garment.
In an embodiment of the fifth or sixth aspect, the garment is made of cotton, synthetic materials or a combination thereof, preferably said synthetic material is polyester.
Definitions
The following definitions are used in the present application.
“Ganz value / Instrumental evaluation” as used in the present application means: whiteness degree simulated as Ganz-Griesser value as specified in the A.LS.E. Laundry detergent testing guidelines.
“Protease” as used in the present application means: class of enzymes that catalyse the breakdown of proteins into smaller polypeptides or single amino acids.
“Amylase” as used in the present application means: class of enzymes that catalyse the hydrolysis of starch into sugars such as glucose and maltose.
“Mannanase” as used in the present application means: class of enzymes that catalyse the hydrolysis of mannose derivatives.
“Mannose” as used in the present application means: sugar monomer of the aldohexose series of carbohydrates.
“Lipase” as used in the present application means: class of enzymes that catalyse the hydrolysis of fats or lipids.
“Cellulase” as used in the present application means: class of enzymes that catalyse the cellu lolysis or hydrolysis of cellulose.
“Laundry detergent composition” as used in the present application means: composition used primarily for the cleaning of garments and whose main action is the removal of grime and dirt, comprising a builder and not having lipases.
“Laundry additive composition” as used in the present application means: composition which is used for providing a specific consumer benefit, such as: removal of stains, elimination of malodour, improvement of whiteness and/or disinfection of garments. This means that the mean action of a laundry additive is not the removal or grime and dirt. Furthermore, a laundry additive is commonly used as a pre-treatment, in soaking conditions or together with a laundry detergent composition.
“Poly-cotton or Polycotton” as used in the present application means: fabric made of approximately 35 wt.% cotton and 65 wt.% polyester.
Detailed description of the invention
In a first aspect, the present invention relates to a composition comprising at least one bleaching agent, at least one bleach activator, at least one oxygen transfer agent, and at least one protease, wherein:
- the composition comprises between 51 wt.% and 59 wt.% of said at least one bleaching agent, based on the total weight of the composition; and
- the composition comprises between 0.08 wt.% and 5 wt.% of said at least one oxygen transfer agent, based on the total weight of the composition, wherein said at least one oxygen transfer agent is selected from the group consisting of 3- methyl-1 ,2-benzisothiazol-1 ,1 -dioxide, 1 ,2,3-Benzoxathiazine, 2,2-dioxide, and combinations thereof; wherein the weight ratio of said at least one bleaching agent to said at least one oxygen transfer agent is less than 650:1 .
The present inventors have observed that by carefully selecting the amounts of the at least one bleaching agent and the amounts and type of the at least one oxygen transfer agent, a composition is obtained, which provides a better stain removal, malodour removal and preferably also improved whiteness of fabrics than compositions not containing these amounts of ingredients and an oxygen transfer agent selected from the group consisting of 3-methyl-1 ,2-benzisothiazol-1 ,1 -dioxide, 1 ,2,3-Benzoxathiazine, 2,2- dioxide, and combinations thereof.
These oxygen transfer agents react in the washing liquor to produce oxaziridines, which are responsible for the improved stain removal.
Furthermore, the compositions according to the invention allow for the removal of stains and malodour, especially the removal of turmeric and/or curry stains, even at temperatures lower than those usually used in automatic laundry washing (30°C or 40°C). It is believed that by adding the oxygen transfer agent to a detergent composition comprising a bleaching agent and a bleach activator, the activation energy needed to bleach a stain is reduced; this means that, the compositions according to the invention
allow for the removal of stains from the fabric at lower temperatures, for example, 20°C or even 15°C, and faster than a composition not containing the oxygen transfer agent.
In addition, the present inventors have observed a synergistic effect between all ingredients of the composition according to the invention, in particular between the oxygen transfer agent, the bleaching agent, the bleach activator, and the protease. This is evidenced by the combined removal of stains and malodour and optionally the whiteness improvement.
An effect that is obtained with the composition according to the invention, in particular in garments made of polyester, is improvement of whites or whitening. As previously discussed, the oxygen transfer agents in the compositions according to the invention produce oxaziridines, which have a hydrophobic nature and can interact with polyethylene terephthalate in polyesters textiles. This interaction allows for a better whitening of the textiles.
Preferably, said at least one oxygen transfer agent is 3-methyl-1 ,2-benzisothiazol-1 ,1 - dioxide. The present inventors have observed that excellent results regarding stain removal, in particular removal of stains comprising a polyphenolic compound, such as turmeric and/or curry stains, and malodour removal are obtained with this oxygen transfer agent.
The composition may comprise:
- between 52 wt.% and 58 wt.% of said at least one bleaching agent, based on the total weight of the composition, preferably between 53 wt.% and 57 wt.%; and/or
- between 0.001 wt.% and 5 wt.% of said at least one protease, based on the total weight of the composition, preferably between 0.001 wt.% and 2.5 wt.%, more preferably between 0.001 wt.% and 1 wt.%; and/or
- between 0.1 wt.% and 4 wt.% of said at least one oxygen transfer agent, based on the total weight of the composition, preferably between 0.15 wt.% and 2 wt.%, more preferably between 0.20 wt.% and 1 wt.%.
The bleaching agent is preferably selected from the group consisting of an oxygenreleasing bleaching agent, a chlorine-releasing bleaching agent and combinations of two or more thereof. The at least one bleaching agent may then comprise at least one source of active oxygen selected from the group consisting of an inorganic peroxide, an organic
peracid, hydrogen peroxide, and combinations thereof; preferably selected from the group consisting of sodium percarbonate, e-phthalimido-peroxy-hexanoic acid (PAP), peracetic acid, potassium peroxymonosulfate (KMPS), and combinations thereof; most preferably wherein said at least one bleaching agent is sodium percarbonate.
The at least one bleach activator is preferably selected from the group consisting of tetraacetylethylendiamine (TAED), acetylated triazine derivatives, acetylated glycoluriles, acylimides, acetylated phenolsulfonates, acetylated phenol carbonic acids, sodium nonanoyloxybenzenesulfonate (NOBS), 4-decanoyloxybenzoic Acid (DOBA), carbonic acid anhydrides, acetylated sugar derivatives, N- acetylated lactams, and combinations thereof; preferably said at least one bleach activator is tetra acetylethylenediamine (TAED).
The composition may comprise between 0.1 wt.% and 20 wt.% of said at least one bleach activator, based on the total weight of the composition, preferably between 0.25 wt.% and 15 wt.%, more preferably between 0.5 wt.% and 10 wt.%, most preferably between 1 wt.% and 5 wt.%.
In a preferred embodiment the weight ratio of the said at least one bleaching agent to the said at least one oxygen transfer agent is less than 500:1 , preferably between 10:1 and 400:1 , more preferably between 100:1 and 300:1. The present inventors have observed that these weight ratios provide the best results in terms of stain removal, malodour removal, and/or reduction or elimination of bacteria, viruses and/or fungi from a garment. This also allows for the use of smaller amounts of compositions having between 51 wt.% and 59 wt.% of a bleaching agent in a laundry washing or fabric treatment operation.
For example, if 50 g of a composition comprising 30 wt.% of a bleaching agent provides a certain effect, it is expected that, if the amount of composition is reduced to 25 g, the composition must comprise 60 % of the bleaching agent to provide the same effect. The present inventors have observed that if the weight ratio of the said at least one bleaching agent to the said at least one oxygen transfer agent is adjusted as mentioned above, similar, or better effects are obtained with 25 g of a composition comprising between 51 wt.% and 59 wt.% of the bleaching agent.
The composition according to the invention allows for the incorporation of more enzymes, which have a synergistic effect with the other elements of the composition. For example,
the composition may further comprise between 0.001 wt.% and 10 wt.% of one or more further enzymes, based on the total weight of the composition, preferably between 0.001 wt.% and 8 wt.%, more preferably between 0.001 wt.% and 6 wt.%, even more preferably between 0.001 wt.% and 4 wt.%, most preferably between 0.001 wt.% and 2 wt.%; wherein said one or more further enzyme are preferably selected from the group consisting of a mannanase, a lipase, an amylase, a cellulase, and combinations thereof.
The compositions of the present invention may take any form, e.g., solid, liquid, gel, powder or mixtures thereof. Preferably, the compositions will be in the form of a solid or a powder.
The composition is preferably a laundry detergent composition or a laundry additive composition, more preferably the composition is a laundry additive composition.
Preferably, the pH of a dilution of 1 :100 at 20°C of the composition is between 9 and 12, more preferably between 9.5 and 11 .5, even more preferably between 10 and 11 .
Preferably the composition further comprises a rheology modifier agent, a fragrance, a phase stabilizer, a dye, a softening agent, a chelating agent, an anti-bacterial agent, a transition metal compound, an anti-foaming agent, a preservative, one or more surfactants, one or more fillers, a dye-transfer inhibitor, an optical brightener, or combinations thereof.
The composition may comprise one or more non-ionic surfactants. The amount of said one or more non-ionic surfactants in the composition may be between 0.01 wt.% and 10 wt.%, based on the total weight of the composition, preferably between 0.05 and 5 wt.%, more preferably between 0.1 and 1.0 wt.%. Examples of non-ionic surfactants are ethoxylated alcohols and ethoxylated alkyl phenols having the formula R1(OCH2CH2)nOH; wherein R1 is an aliphatic hydrocarbon radicals containing between 10 and 24 carbon atoms or alkyl phenyl radicals in which the alkyl groups contain from 10 to 22 carbon atoms; and n has an average value of from 1 to 10. Preferably, the one or more non-ionic surfactants have the formula R1(OCH2CH2)nOH; wherein R1 is an alkyl moiety having between 10 and 24 carbon atoms, and n has an average value of from 1 to 10.
For example, when R1 is defined as being a Ci2-14 moiety, it is meant an alkyl moiety having between 12 and 14 carbon atoms. For example, when R1 is defined as being a Ci2-16 moiety, it is meant an alkyl moiety having between 12 and 16 carbon atoms. For
example, when R1 is defined as being a C13 moiety, it is meant an alkyl moiety having 13 carbon atoms.
In a preferred embodiment, the composition comprises between 0.01 wt.% and 10 wt.% of one or more non-ionic surfactants, based on the total weight of the composition, preferably between 0.05 and 5 wt.%, more preferably between 0.1 and 1 .0 wt.%; wherein said one or more non-ionic surfactants have the formula R1(OCH2CH2)nOH; wherein R1 is an alkyl moiety having between 12 and 16 carbon atoms, and n has an average value of from 3 to 6, preferably between 4 and 5.
The composition may further comprise any conventional anionic surfactant or a mixture of them used in detergent products. These include, for example, the alkyl benzene sulfonic acids and their salts as well as alkoxylated or non-alkoxylated alkyl sulfate materials. The anionic surfactants may be present in acid form or in neutralized (e.g., salt) form. The anionic surfactants may be linear, branched, or a mixture thereof. An example of an anionic surfactant is sodium cumenesulphonate.
Examples of anionic surfactants are the alkali metal salts of C10-16 alkyl benzene sulphonic acids or Cn-14 alkyl benzene sulphonic acids.
Another exemplary type of anionic surfactant is alkoxylated alkyl sulphate surfactants, such as ethoxylated alkyl sulphate surfactants. Such materials are also known as alkyl ether sulphates or alkyl polyethoxylate sulphates.
Alkyl ether sulphates are generally available in the form of mixtures comprising varying R' chain lengths and varying degrees of ethoxylation. Frequently such mixtures also contain some non- ethoxylated alkyl sulphate ("AS") materials.
In a preferred embodiment, the composition comprises:
- between 0.01 wt.% and 10 wt.% of one or more non-ionic surfactants, based on the total weight of the composition, preferably between 0.05 wt.% and 5 wt.%, more preferably between 0.1 wt.% and 1 .0 wt.%; wherein said one or more non- ionic surfactants have the formula R1(OCH2CH2)nOH; wherein R1 is an alkyl moiety having between 12 and 16 carbon atoms, and n has an average value of from 3 to 6, preferably between 4 and 5; and
- between 0.01 wt.% and 10 wt.% of one or more anionic surfactants, based on the total weight of the composition, preferably between 0.05 wt.% and 7.5 wt.%,
more preferably between 0.1 wt.% and 5 wt.%; wherein said one or more anionic surfactants preferably comprise a sodium salt of linear alkyl benzene sulfonate, sodium xylene sulfonate, an alcohol sulphate, an alfa olefin sulfonate, or combinations thereof.
The selection of non-ionic surfactants and anionic surfactants, in, for example, this preferred embodiment, is important for the compatibility of the composition with the high amounts of the bleaching agent, but also for controlling the foaming, detergency, flowability, and other physical and chemical properties of the composition.
The composition may optionally contain a filler. Suitable fillers include bicarbonates and carbonates of metals, such as alkali metals and alkaline earth metals. Examples include sodium carbonate, sodium bicarbonate, calcium carbonate, calcium bicarbonate, magnesium carbonate, magnesium bicarbonate and sesqui-carbonates of sodium, calcium and/or magnesium. Other examples include metal carboxy glycine and metal glycine carbonate. Chlorides, such as sodium chloride; citrates; and sulfates, such as sodium sulfate, calcium sulfate and magnesium sulfate, may also be employed. Preferably the composition comprises at least one filler selected from the group consisting of alkyl carbonate, alkyl sulfate and combinations thereof; more preferably selected from the group consisting of sodium carbonate, sodium sulfate and combinations thereof.
When a filler is present, the composition may comprise between 0.1 wt.% and 80 wt.% of said at least one filler, based on the total weight of the composition, preferably between 10 wt.% and 75 wt.%, more preferably between 20 wt.% and 70 wt.%.
The composition may comprise an optical brightener, preferably selected from the group consisting of stilbene, benzidine, benzothiazole, benzimidazole, benzoxazole, coumarin, pyrazoline, naphtalimide, naphtoxazole, distyryl-biphenyl, benzonitrile, benzopyrazole, including their derivatives and substituted compounds, and combinations thereof. Suitable optical brighteners include 4,4’-bis(2-sulphostyryl)diphenyl, 7-Diethylamino-4- methylcoumarin, benzoxazole, 2,2'-(1 ,2-ethenediyl) bis[5-methyl] including their substituted compounds, 4,4'-bis (triazine-2ylamino) stilbene-2,2'-disulphonic acid, mono (azol-2-yl) stilbene and bis (azol-2yl) stilbene; styryl derivatives of benzene and biphenyl, such as 1 ,4-bis (styryl) benzene, 4,4'-bis (styryl) benzene, 4,4'-bis- (styryl) biphenyl, 4,4'- bis (sulphostryryl) biphenyl sodium salt; pyrazolines such as 1 , 3-diphenyl-2-pyrazoline; bis (benzene-2-yl) derivatives, bis (benzoxazol-2-yl) derivatives and bis (benzimidazol-
2-yl) derivatives; 2- (benzofuran-2-yl) benzimidazole; coumarins such as 4-methyl-7- hydroxy-coumarin or 4-methyl-7-diethylaminocoumarin; carbostyrils; naphthalimides; dibenzothiophene5,5-dioxide; pyrene; or pyridotriazole derivatives and combinations thereof.
When an optical brightener is present, the composition may comprise between 0.001 wt.% and 1 wt.% of at least one optical brightener, based on the total weight of the composition, preferably between 0.01 wt.% and 0.5 wt.%, more preferably between 0.05 wt.% and 0.25 wt.%.
The composition may further comprise a dye-transfer inhibitor. Preferred dyetransfer inhibitors (sometimes called dye anti-redisposition agents or soil suspending agents) include polyvinylalcohol, fatty amides, sodium carboxylmethyl cellulose, hydroxypropyl methyl cellulose, polyvinylpyrollidone, polyvinylimidazole, polyvinyloxazolidone, polyamine N-oxide polymers and copolymers or N-vinylpyrollidone and N-vinylimidazole.
When a dye-transfer inhibitor is present, the composition may comprise between 0.001 wt.% and 1 .5 wt.% of at least one dye transfer inhibitor, based on the total weight of the composition, preferably between 0.01 wt.% and 1 .0 wt.%, more preferably between 0.05 wt.% and 0.75 wt.%.
In a preferred embodiment, the composition is a laundry detergent composition or a laundry additive composition in form of a solid or a powder; which comprises:
- between 51 wt.% and 59 wt.% of at least one bleaching agent, preferably consisting of sodium percarbonate;
- between 0.02 wt.% and 1 .0 wt.% of at least one oxygen transfer agent, preferably consisting of 3-methyl-1 ,2-benzisothiazol-1 ,1 -dioxide;
- between 0.001 wt.% and 1 wt.% of at least one protease;
- between 1 wt.% and 5 wt.% of at least one bleach activator, preferably consisting of tetraacetylethylendiamine (TAED); and preferably further comprising between 0.001 wt.% and 1 wt.% or one or more further enzymes, preferably selected from the group consisting of a mannanase, a lipase, an amylase, a cellulase, and combinations thereof; based on the total weight of the composition, wherein the weight ratio of the said at least one bleaching agent to the said at least one oxygen transfer agent is between 100:1 and 300:1 .
The composition according to the invention can be prepare by methods known by the skilled person; this means that the selected ingredients are mixed to obtain the composition.
In a second aspect, the invention relates to a method of laundering a fabric in a laundry washing machine comprising adding a composition according to any of the preceding claims to the washing machine and conducting the wash, wherein preferably the wash liquor is at a temperature higher than 15°C and lower than 40°C, more preferably lower than 35°C, even more preferably lower than 30°C, most preferably lower than 25°C; and wherein preferably between 0.25 g and 5 g of the composition are added to the laundry washing machine per litre of washing liquor, more preferably between 0.5 g and 3 g, most preferably between 0.75 g and 2.5 g.
In a third aspect, the invention relates to a method of cleaning a stain on a laundry item comprising:
- contacting the stain directly with a composition according to the first aspect before the laundry item is washed, or
- adding a composition according to the first aspect directly into the drum of washing machine, or
- adding a composition according to the first aspect to a bucket with water and soaking for a predetermined length of time.
When the composition is added into the drum of the washing machine or when it is added to a bucket with water, the washing liquor may have between 0.25 g and 15 g of the composition by litre of washing liquor. For example, if the composition is added into the drum of the washing machine, the washing liquor may have between 0.5 g and 10 g of the composition per litre of washing liquor, preferably between 1 g and 5 g, even more preferably between 1 .5 g and 3 g. If the composition is added to a bucket with water, the washing liquor may have between 0.5 g and 15 g of the composition per litre of washing liquor, preferably between 1 g and 10 g, more preferably between 2 g and 8 g.
When the composition is added to a bucket with water, soaking is performed for a predetermined length of time, which may be between 30 minutes and 2 hours, preferably between 45 minutes and 90 minutes, more preferably for about one hour.
It should be noted that the temperature of the washing liquor may be between 10°C and 60 °C, preferably between 10 °C and 45 °C. The present inventors have observed that the composition according to the first aspect of the invention removes stains, in particular turmeric and/or curry stains, and malodour even at lower temperatures than those usually used in washing operation, for example at 20 °C.
This means that the method according to the second or third aspect allows for the removal of stains and malodour, and preferably whiteness improvement, even at temperatures of for example 16°C. If the washing temperature is reduced, then energy consumption and carbon footprint are also reduced.
In a fourth aspect, the invention relates to a use of the composition according to the first aspect in a laundry washing and/or fabric treatment operation.
In a fifth aspect, the invention relates to a use of the composition according to the first aspect for the removal of stains, preferably stains comprising a polyphenolic compound, more preferably wherein the stains comprise turmeric and/or curry stains and/or for the removal of malodour from a garment.
In a sixth aspect, the invention relates to a use of the composition according to the first aspect for the reduction or elimination of bacteria, viruses and/or fungi from a garment.
In a preferred embodiment of the fifth and sixth aspect, said garment is made of cotton, synthetic materials or a combination thereof, preferably wherein said synthetic material is polyester.
In a further aspect, the invention relates to the use of the composition according to the first aspect for the removal of stains, preferably stains comprising a polyphenolic compound such as turmeric and/or curry stains, the removal of malodour from a garment and the reduction of elimination of bacteria, viruses and/or fungi from a garment.
The foregoing aspects may be freely combined with any of the foregoing aspects disclosed herein.
All percentages used in this disclosure are by weight unless otherwise specified.
The present invention will now be described in relation to the following non-limiting Examples.
Examples
Formulations
Formulation A is a comparative composition, not according to the invention. Formulation 1 is a formulation according to the invention.
Table 1 . Formulations
In table 1 :
Oxygen transfer agent = 3-methyl-1 ,2-benzisothiazol-1 ,1 -dioxide.
The amounts of enzymes are the amounts of these as received from a supplier.
Additional ingredients such as: fragrances, optical brighteners, thickeners, and/or fillers.
Formulation B is a comparative formulation, not according to the invention. Formulation 2 is a formulation according to the invention.
Table 2. Formulations
In table 2:
Oxygen transfer agent = 3-methyl-1 ,2-benzisothiazol-1 ,1 -dioxide.
The amounts of enzymes are the amounts of these as received from a supplier. In both formulations the same type and amounts of enzymes are used.
Additional ingredients such as: fragrances, optical brighteners, thickeners, and/or fillers.
In both formulations the same type and amounts of additional ingredients are used.
Performance tests
Removal of stains in washing machine at 30°C
Technical stains supported on cotton were washed in a laundry washing machine in a washing liquor containing one of the detergent systems shown in Table 3 at 30°C.
Table 3. Detergent systems
The commercial detergent in Table 3 is Ariel liquid as sold in the UK.
Washing test conditions
Technical stained fabrics were washed using one of the detergent systems of Table 3. Each sample was washed in a Miele PW 6065 Plus laundry washing machine at a temperature of 30°C using a cotton cycle (time of main wash about 36 minutes), water hardness of 28 °f (French degrees).
Stain removal was determined using a Datacolor 650 spectrophotometer and by measuring the Y-value of the technical stain after washing.
Removal of stains in washing machine at 20°C
Technical stains supported on cotton were washed in a laundry washing machine in a washing liquor containing one of the detergent systems shown in Table 4 at 20°C.
Table 4. Detergent systems
The commercial detergent in Table 4 is Ariel liquid as sold in the UK.
Washing test conditions Technical stained fabrics were washed using one of the detergent systems of Table 4. Each sample was washed in a Bosch WAV28MA9II laundry washing machine at a temperature of 20°C using a mix program cycle (time of main wash about 38 minutes), water hardness of 28 °f (French degrees).
Stain removal was determined using a Datacolor 700 spectrophotometer and by measuring the Y-value of the technical stain after washing.
In table 5, stain removal performance of the detergent system comprising Formulation 1 (D1 ) is compared with the stain removal performance of the detergent system comprising Formulation A (Da). In table 5, “0” means no difference regarding stain removal performance, compared to the detergent system comprising Formulation A, and “+” means improved stain removal performance.
Table 5. Stain removal of technical stains supported on cotton at 30°C
(Each value in table 5 is the average of four measurements)
In table 6, stain removal performance of the detergent system comprising Formulation 2 (D2) is compared with the stain removal performance of the detergent system comprising Formulation B (Db). In table 6, “+” means improved stain removal performance compared to the detergent system comprising Formulation B. Table 6. Stain removal of technical stains supported on cotton at 20°C
The results in table 5 and table 6 demonstrate that the formulation according to the invention provides better stain removal of stains, in particular of stains containing polyphenols such as red wine and curry, than the comparative formulations. This effect is achieved with an amount of the formulation according to the invention, which is half of the amount of the comparative formulation.
In addition, the results in table 6 clearly show the influence of the ratio of the at least one bleaching agent to the at least one oxygen transfer on the stain removal performance of the formulations. Furthermore, the present inventors have observed that the formulation according to the invention provides excellent malodour removal.
The composition according to the invention provides:
- removal of stains, especially of stains comprising a polyphenolic compound; - malodour removal; and preferably also whiteness improvement in a garment and reduction or elimination of bacteria, viruses and/or fungi from a garment.
Hence one or more objects of the present invention are achieved by the present which is further elucidated in the appended claims.
Claims
1. Composition comprising at least one bleaching agent, at least one bleach activator, at least one oxygen transfer agent, and at least one protease, wherein:
- the composition comprises between 51 wt.% and 59 wt.% of said at least one bleaching agent, based on the total weight of the composition; and
- the composition comprises between 0.08 wt.% and 5 wt.% of said at least one oxygen transfer agent, based on the total weight of the composition, wherein said at least one oxygen transfer agent is selected from the group consisting of 3-methyl-1 ,2- benzisothiazol-1 ,1 -dioxide, 1 ,2,3-Benzoxathiazine, 2,2-dioxide, and combinations thereof; wherein the weight ratio of said at least one bleaching agent to said at least one oxygen transfer agent is less than 650:1 .
2. Composition according to claim 1 , wherein said composition comprises:
- between 52 wt.% and 58 wt.% of said at least one bleaching agent, based on the total weight of the composition, preferably between 53 wt.% and 57 wt.%; and/or
- between 0.001 wt.% and 5 wt.% of said at least one protease, based on the total weight of the composition, preferably between 0.001 wt.% and 2.5 wt.%, more preferably between 0.001 wt.% and 1 wt.%; and/or
- between 0.1 wt.% and 4 wt.% of said at least one oxygen transfer agent, based on the total weight of the composition, preferably between 0.15 wt.% and 2 wt.%, more preferably between 0.20 wt.% and 1 wt.%.
3. Composition according to claim 1 or claim 2, wherein said at least one bleaching agent comprises at least one source of active oxygen selected from the group consisting of an inorganic peroxide, an organic peracid, hydrogen peroxide, and combinations thereof; preferably selected from the group consisting of sodium percarbonate, E- phthalimido-peroxy-hexanoic acid (PAP), peracetic acid, potassium peroxymonosulfate (KMPS), and combinations thereof; most preferably wherein said at least one bleaching agent is sodium percarbonate.
4. Composition according to any of the preceding claims, wherein the weight ratio of said at least one bleaching agent to said at least one oxygen transfer agent is less than 500:1 , preferably between 10:1 and 400:1 , more preferably between 100:1 and 300:1.
5. Composition according to any of the preceding claims, wherein said composition comprises between 0.1 wt.% and 20 wt.% of said at least one bleach activator, based on the total weight of the composition, preferably between 0.25 wt.% and 15 wt.%, more preferably between 0.5 wt.% and 10 wt.%, most preferably between 1 wt.% and 5 wt.%.
6. Composition according to any of the preceding claims, wherein said at least one bleach activator is selected from the group consisting of tetraacetylethylendiamine (TAED), acetylated triazine derivatives, acetylated glycoluriles, acylimides, acetylated phenolsulfonates, acetylated phenol carbonic acids, sodium nonanoyloxybenzenesulfonate (NOBS), 4-decanoyloxybenzoic Acid (DOBA), carbonic acid anhydrides, acetylated sugar derivatives, N- acetylated lactams, and combinations thereof; preferably said at least one bleach activator is tetra acetylethylenediamine (TAED).
7. Composition according to any of the preceding claims, wherein said at least one oxygen transfer agent is 3-methyl-1 ,2-benzisothiazol-1 ,1 -dioxide.
8. Composition according to any of the preceding claims, wherein said composition further comprises between 0.001 wt.% and 10 wt.% of one or more further enzymes, based on the total weight of the composition, preferably between 0.001 wt.% and 8 wt.%, more preferably between 0.001 wt.% and 6 wt.%, even more preferably between 0.001 wt.% and 4 wt.%, most preferably between 0.001 wt.% and 2 wt.%; wherein said one or more further enzyme are preferably selected from the group consisting of a mannanase, a lipase, an amylase, a cellulase, and combinations thereof.
9. Composition according to any of the preceding claims, wherein said composition is a laundry detergent composition or a laundry additive composition.
10. Composition according to any of the preceding claims, wherein the pH of a dilution of 1 :100 at 20°C of the composition is between 9 and 12, preferably between 9.5 and 11 .5, more preferably between 10 and 11 .
1 1 . Composition according to any of the preceding claims, wherein the composition is in the form of a solid or a powder.
12. Method of laundering a fabric in a laundry washing machine comprising adding a composition according to any of the preceding claims to the washing machine and conducting the wash, wherein preferably the wash liquor is at a temperature higher than 15°C and lower than 40°C, more preferably lower than 35°C, even more preferably lower than 30°C, most preferably lower than 25°C; and wherein preferably between 0.25 g and 5 g of the composition are added to the laundry washing machine per litre of washing liquor, more preferably between 0.5 g and 3 g, most preferably between 0.75 g and 2.5 g-
13. Method of cleaning a stain on a laundry item comprising:
- contacting the stain directly with a composition according to any of the claims 1 -1 1 before the laundry item is washed, or
- adding a composition according to any of the claims 1 -11 directly into the drum of washing machine, or
- adding a composition according to any of the claims 1 -11 to a bucket with water and soaking for a predetermined length of time.
14. Use of the composition according to any of the claims 1 -1 1 in a laundry washing and/or fabric treatment operation.
15. Use of the composition according to any of the claims 1 -1 1 for the removal of stains, preferably stains comprising a polyphenolic compound, more preferably wherein
the stains comprise turmeric and/or curry stains and/or for the removal of malodour from a garment.
16. Use of the composition according to any of the claims 1 -1 1 for the reduction or elimination of bacteria, viruses and/or fungi from a garment.
17. Use according to claim 15 or to claim 16, wherein said garment is made of cotton, synthetic materials or a combination thereof, preferably wherein said synthetic material is polyester.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB2204137.0A GB202204137D0 (en) | 2022-03-24 | 2022-03-24 | Composition for the removal of stains and malodour |
| GB2204137.0 | 2022-03-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2023180426A1 true WO2023180426A1 (en) | 2023-09-28 |
Family
ID=81449462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2023/057421 WO2023180426A1 (en) | 2022-03-24 | 2023-03-23 | Composition for the removal of stains and malodour |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB202204137D0 (en) |
| WO (1) | WO2023180426A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5047163A (en) * | 1990-03-16 | 1991-09-10 | Lever Brothers Company, Division Of Conopco, Inc. | Activation of bleach precursors with sulfonimines |
| CN108048247A (en) * | 2018-01-16 | 2018-05-18 | 深圳市素造者生物科技有限公司 | Component of oxygen-bearing detergent and preparation method thereof |
| US20180340138A1 (en) * | 2015-11-25 | 2018-11-29 | Henkel Ag & Co. Kgaa | Enzyme stabilizers |
-
2022
- 2022-03-24 GB GBGB2204137.0A patent/GB202204137D0/en not_active Ceased
-
2023
- 2023-03-23 WO PCT/EP2023/057421 patent/WO2023180426A1/en unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5047163A (en) * | 1990-03-16 | 1991-09-10 | Lever Brothers Company, Division Of Conopco, Inc. | Activation of bleach precursors with sulfonimines |
| EP0446982A2 (en) | 1990-03-16 | 1991-09-18 | Unilever N.V. | Low-temperature bleaching compositions |
| US20180340138A1 (en) * | 2015-11-25 | 2018-11-29 | Henkel Ag & Co. Kgaa | Enzyme stabilizers |
| CN108048247A (en) * | 2018-01-16 | 2018-05-18 | 深圳市素造者生物科技有限公司 | Component of oxygen-bearing detergent and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| GB202204137D0 (en) | 2022-05-11 |
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