EP4392514A1 - Composition détergente - Google Patents

Composition détergente

Info

Publication number
EP4392514A1
EP4392514A1 EP22768403.2A EP22768403A EP4392514A1 EP 4392514 A1 EP4392514 A1 EP 4392514A1 EP 22768403 A EP22768403 A EP 22768403A EP 4392514 A1 EP4392514 A1 EP 4392514A1
Authority
EP
European Patent Office
Prior art keywords
detergent composition
surfactant
alkyl
composition according
composition
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.)
Pending
Application number
EP22768403.2A
Other languages
German (de)
English (en)
Inventor
Gurpreet Singh Kohli
Prajkta Rupesh Rane
Asha Telkar
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.)
Unilever Global IP Ltd
Unilever IP Holdings BV
Original Assignee
Unilever Global IP Ltd
Unilever IP Holdings BV
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
Application filed by Unilever Global IP Ltd, Unilever IP Holdings BV filed Critical Unilever Global IP Ltd
Publication of EP4392514A1 publication Critical patent/EP4392514A1/fr
Pending legal-status Critical Current

Links

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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic 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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/72—Ethers of polyoxyalkylene glycols
    • 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
    • C11D1/66—Non-ionic compounds
    • C11D1/83—Mixtures of non-ionic with anionic 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
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/10—Carbonates ; Bicarbonates
    • 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

Definitions

  • EP 0460925 A2 discloses a particulate detergent composition having coconut alkyl sulphate surfactant and sodium carbonate builder.
  • Example 1 of D1 has 0 wt.% LAS and 0 wt.% bleach and 1 wt.% soap.
  • a solid laundry detergent composition comprising: i) an alkyl sulphate surfactant; ii) 0 wt.% to 5 wt.% alkyl benzene sulphonate surfactant; iii) carbonate builder; iv) 0 wt.% to 3 wt.% bleach system; and, v) 0 wt.% soap; wherein the composition comprises a Cs to Cis alkyl alkoxylated alcohol nonionic surfactant with an average degree of ethoxylation ranging from 1 to 7 EO group and wherein the weight ratio between the alkyl sulphate surfactant and the nonionic surfactant is from 1:1.5 to 1 :10.
  • a method of treating a textile surface with the detergent composition according to the first aspect of the present invention comprising the steps of: i) preparing a wash liquor by contacting the solid laundry detergent composition according to the first aspect with a liquid, preferably water; ii) washing the textile surface with the wash liquor; iii) optionally rinsing the textile surface; iv) contacting the laundered textile surface to a skin surface.
  • the disclosed solid detergent composition includes an alkyl sulphate surfactant.
  • Suitable alkyl sulphate surfactant includes Cs to Cis alkyl or hydroxyalkyl, sulphate and/or ether sulfate.
  • Suitable counterions include alkali metal cation or ammonium or substituted ammonium, but preferably sodium.
  • the sulphate surfactant may also be selected C10 to Cis secondary (2 ,3)-alkyl sulfates having following formulae: wherein M is hydrogen or a cation which provides charge neutrality, and all M units, whether associated with a surfactant or adjunct ingredient, can either be a hydrogen atom or a cation depending upon the form isolated by the artisan or the relative pH of the system wherein the compound is used, with non-limiting examples of preferred cations including sodium, potassium, ammonium, and mixtures thereof, and x is an integer of at least about 7, preferably at least about 9, and y is an integer of at least 8, preferably at least about 9.
  • the alkyl sulfate surfactant may be preferably mid-chain branched alkyl sulfates as discussed in US 6,020,303 and US 6,060,443; mid-chain branched alkyl alkoxy sulfates as discussed in US 6,008, 181 and US 6,020,303.
  • the alkoxylated anionic sulphate surfactant has a degree of ethoxylation of having a degree of ethoxylation of from 0.2 to 7, more preferably from 1 to 7, even more preferably from about 1 to 3.
  • the alkoxylated alkyl sulphate surfactant may be linear or branched, substituted or unsubstituted.
  • the alkoxylated alkyl sulphate surfactant is sodium lauryl ether sulphate with an average degree of ethoxylation from 1 to 3.
  • the alkyl sulphate surfactant may be linear or branched, substituted or un-substituted.
  • the alkyl sulphate surfactant may be derived from petrochemical material or biomaterial.
  • the amount alkyl sulphate surfactant ranges from 0.5 wt.% to 20 wt.%, still preferably from 0.5 wt.% to 10 wt.%, still more preferably from 1 wt.% to 8 wt.%.
  • the detergent composition comprises at least 2 wt.% alkyl sulphate surfactant based on the weight of the detergent composition, still preferably at least 3 wt.%, still preferably at least 4 wt.%, most preferably at least 5 wt.%, but typically not more than 9 wt.%, still preferably not more than 8.5 wt.%, more preferably not more than 8 wt.% and most preferably not more than 7.5 wt.% alkyl sulphate surfactant in the detergent composition.
  • the alkyl sulphate surfactant is linear or branched C12 to Cis sulphate surfactant.
  • the detergent composition according to the present invention includes from 0 wt.% to 5 wt.% alkyl benzene sulphonate surfactant.
  • the detergent composition according to the present invention has low levels of the alkyl benzene sulphonate surfactant. Without being bound by theory, it is believed that alkyl benzene sulphonate generally has an antimicrobial effect during the laundering process.
  • Alkyl benzene sulphonate include those obtainable, by sulphonating commercially available linear alkyl benzene (LAB); suitable LAB includes low 2-phenyl LAB, other suitable LAB include high 2-phenyl LAB, such as those supplied by Sasol under the tradename Hyblene®.
  • the alkyl benzene sulphonate surfactant are the alkali metal salts of C10 to Cis alkyl benzene sulfonic acids, preferably C10 to Cis alkyl benzene sulfonic acids.
  • the alkyl group is linear.
  • Such linear alkyl benzene sulfonates are known as “LAS”.
  • Such surfactants and their preparation are described for example in U.S. Patent Nos. 2,220,099 and 2,477,383.
  • Especially preferred are the sodium and potassium linear straight chain alkylbenzene sulfonates in which the average number of carbon atoms in the alkyl group is from about 11 to 14.
  • Sodium C11 to C14 LAS, e.g., C12 LAS, are a specific example of such surfactants.
  • alkyl benzene sulphonate also includes within the alkyl benzene sulphonate are the modified alkylbenzene sulfonate (MLAS) as discussed in WO 99/05243, WO 99/05242, WO 99/05244, WO 99/05082, WO 99/05084, WO 99/05241 , WO 99/07656, WO 00/23549, and WO 00/23548.
  • MLAS modified alkylbenzene sulfonate
  • Suitable alkyl benzene sulphonate surfactant may be in salt form, suitable counter-ions include sodium, calcium, magnesium, amino alcohols, and any combination thereof. A preferred counterion is sodium.
  • the alkyl benzene sulphonate may be linear or branched, substituted or un-substituted.
  • the alkyl benzene sulphonate may be derived from petrochemical material or biomaterial.
  • the amount alkyl benzene sulphonate surfactant ranges from 0 wt.% to 5 wt.%, still preferably from 0 wt.% to 2 wt.%.
  • the detergent composition comprises at least 0.5 wt.% alkyl benzene sulphonate surfactant based on the weight of the detergent composition, still preferably at least 1 wt.%, still preferably at least 1.5 wt.%, most preferably at least 2 wt.%, but typically not more than 4.5 wt.%, still preferably not more than 4 wt.%, more preferably not more than 3.5 wt.% and most preferably not more than 3 wt.% alkyl benzene sulphonate surfactant in the detergent composition.
  • the alkyl benzene sulphonate surfactant is C10 to C14 linear alkyl benzene sulphonate. Soap
  • the solid detergent composition according to the first aspect of the present invention preferably includes a Cs to Cis alkyl alkoxylated alcohol nonionic surfactant with an average degree of ethoxylation ranging from 1 to 7 EO group.
  • Suitable non-ionic detersive surfactants are selected from the group consisting of: Cs to Cis alkyl ethoxylates, such as, NEODOL® non-ionic surfactants from Shell; Cs to C12 alkyl phenol alkoxylates wherein preferably the alkoxylate units are ethyleneoxy units, propyleneoxy units or a mixture thereof; C12 to Cis alcohol and Cs to C12 alkyl phenol condensates with ethylene oxide/propylene oxide block polymers such as Pluronic from BASF; alkylpolysaccharides, preferably alkylpolyglycosides; methyl ester ethoxylates; polyhydroxy fatty acid amides; alkyl alkoxylated alcohol, ether
  • Suitable alkyl alkoxylated alcohols nonionic detersive surfactant includes Cs to Cis alkyl alkoxylated alcohol, preferably a Cs to Cis is alkyl ethoxylated alcohol, preferably the alkyl alkoxylated alcohol has an average degree of alkoxylation of from 1 to 50, preferably from 1 to 30, or from 1 to 20, or from 1 to 10, preferably the alkyl alkoxylated alcohol is a Cs to Cis is alkyl ethoxylated alcohol having an average degree of ethoxylation of from 1 to 10, preferably from 1 to 7, more preferably from 1 to 5 and most preferably from 3 to 7.
  • nonionic detersive surfactant may also include those selected from polyethylene sorbital ester (Tween 80), ethoxylated lauryl alcohol, lauramide oxide, polysulphonate alkyl polyglucoside, sodium laurylglucoside hydroxypropyl phosphate or mixtures thereof.
  • suitable nonionic detersive surfactant includes secondary alcohol based detersive surfactant.
  • the solid laundry detergent composition according to the present invention includes 0 wt.% to 3 wt.% bleach system.
  • the bleach system includes at least a bleach. More preferably the bleach system includes a bleach and a bleach activator. Suitable bleach includes sodium percarbonate or any other hydrogen peroxide precursor. More preferably the bleach is peroxide bleach. Most preferably, the bleach is a percarbonate. Further preferred, the bleach is a coated percarbonate. Other examples of bleach known in the art includes the perborate based bleach, PAP (N- phthaloylamidoperoxicaproic acid), photoactivated bleach or mixtures thereof.
  • PAP N- phthaloylamidoperoxicaproic acid
  • the bleach system generally includes a bleach activator.
  • Suitable bleach activator includes peroxyacid bleach precursor.
  • the bleach activator includes sodium tetraacetylethylenediamine (TAED).
  • TAED sodium tetraacetylethylenediamine
  • Other suitable bleach activators include the amide substituted alkyl peroxyacid precursor, perbenzoic acid precursor, cationic peroxyacid precursor, benzoxazine organic peroxyacid precursor or mixtures thereof.
  • the solid detergent composition of the present invention includes a carbonate builder.
  • the carbonate builder includes alkaline earth metal and alkali metal carbonates as disclosed in the German patent application No. 2,321,001.
  • the detergent composition of the present invention includes from 2 wt.% to 30 wt.% carbonate builder, preferably 15 wt.% to 30 wt.%, further preferably from 15 wt.% to 25 wt.% carbonate builder.
  • the detergent composition comprises at least 5 wt.%, still preferably at least 10 wt.%, still preferably at least 15 wt.%, most preferably at least 20 wt.% of the carbonate builder, but typically not more than 28 wt.%, still preferably not more than 26 wt.%, most preferably not more than 25 wt.% of carbonate builder based on the weight of the solid detergent composition.
  • the detergent composition comprises at least 3 wt.%, still preferably at least 4 wt.%, still preferably at least 5 wt.%, most preferably at least 6 wt.% of the silicate, but typically not more than 15 wt.%, still preferably not more than 12 wt.%, most preferably not more than 10 wt.% of silicate based on the weight of the solid detergent composition.
  • the composition preferably has from 0 wt.% to 10 wt.% zeolite builder, more preferably from 0 to 2 wt.%.
  • the composition of the present invention is substantially free of zeolite builder.
  • the composition of the present invention includes 0 wt.% zeolite builder.
  • the composition of the present invention is substantially free of phosphate builder. By substantially free it is meant that there is no deliberately added phoshpate salt in the composition.
  • the composition of the present invention includes 0 wt.% phosphate builder.
  • Example of phosphate builder include alkali metal salt of tripolyphosphate.
  • the composition of the present invention preferably includes one or more enzymes.
  • Preferred examples of the enzymes include those which provide cleaning performance and/or fabric care benefits.
  • the enzyme is selected from the group consisting of protease, amylase, lipase, cellulase, mannanase or mixtures thereof.
  • suitable enzymes include, but are not limited to, hemicellulases, peroxidases, proteases, cellulases, xylanases, lipases, xyloglucanase, phospholipases, esterases, cutinases, pectinases, mannanases, pectate lyases, keratinases, reductases, oxidases, phenoloxidases, lipoxygenases, ligninases, pullulanases, tannases, pentosanases, malanases, G-glucanases, arabinosidases, hyaluronidase, chondroitinase, laccase, and amylases, or mixtures thereof.
  • the detergent composition may include cationic surfactant, zwitterionic surfactant, amphoteric surfactant or mixtures thereof.
  • Suitable amphoteric surfactant includes cocamidopropyl betaine (CAPB), cocoamidopropyl hydroxysultaine.
  • the detergent composition includes an antifoaming agent.
  • the antifoaming agent s present in an amount ranging from 0.1 wt.% to 0.5 wt.%, still preferably from 0.1 to 0.25 wt.%.
  • a method of treating a textile surface with the detergent composition according to the first aspect of the present invention comprising the steps of: i) preparing a wash liquor by contacting the solid laundry detergent composition according to the first aspect with a liquid, preferably water; ii) washing the textile surface with the wash liquor; iii) optionally rinsing the textile surface; and, iv) contacting the laundered textile surface to a skin surface, contacting a skin surface with the wash liquor of step (ii) during the washing process or both to a skin surface.
  • the washing of the textile surface may be carried out by a manual hand washing process or a machine-washing process.
  • the skin surface may come in contact with the aqueous wash liquor, especially during the hand washing process.
  • the skin surface may also come in contact with the detergent composition, for example during dispensing the detergent composition.
  • the contact of the skin surface with the wash liquor and /or the detergent composition is gentle on the skin microbiome, especially the good bacteria and the commensals.
  • an alkyl sulphate surfactant 0 wt.% to 5 wt.% alkyl benzene sulphonate surfactant, carbonate builder, 0 to 3 wt.% bleach system, 0 wt.% soap
  • the composition comprises a Cs to Cis alkyl alkoxylated alcohol nonionic surfactant with an average degree of ethoxylation ranging from 1 to 7 EO group and wherein the weight ratio between the alkyl sulphate surfactant and the nonionic surfactant is from 1 :1.5 to 1 :10 in a solid detergent composition to provide at least 2 log reduction, preferably from 2 log to 4 log of pathogenic skin bacterial microbiome.
  • Example 1 Evaluation of the effect of a solid detergent composition on the bacteria present on the skin surface.
  • the antibacterial activity test is set up with one concentration of test product solution as described above at dosage of 4 grams/ litre and at a 30-minute contact time.
  • the test temperature was maintained at 27°C and test organisms were enumerated in duplicate, using standard plating techniques.
  • the antibacterial activity was tested on various microbes using standard ASTM method 2783 and the results obtained were recorded and provided in table 2 below.
  • test bacteria 1 is separately brought into contact with a known population of test bacteria listed in table 2 for 30 minutes at a specified temperature of 27°C. At the end of the 30- minute time the activity of the test bacteria is quenched with an appropriate neutralizing technique and the samples were collected. The number surviving microorganisms in the sample is then enumerated. The log 10 reduction, from an initial microbial population is calculated and provided in table 2 below.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)

Abstract

La présente invention concerne une composition détergente, en particulier une composition détergente solide pour la lessive. Dans l'état de la technique, il existe un besoin de fournir une composition de détergent de lessive qui maintient ou conserve au moins un certain niveau de bactéries bénéfiques. Il est possible d'y arriver de telle sorte que des bactéries bénéfiques puissent réguler ou supprimer la croissance de bactéries non-autotrophes, par exemple des bactéries pathogènes et/ou maintenir un microbiome approprié chez un sujet pour que ce dernier bénéficie des améliorations de sa santé que peuvent fournir les bactéries non pathogènes. Un objet de la présente invention consiste donc à fournir une composition détergente pour la lessive qui n'est pas nocive pour les bonnes bactéries et les bactéries commensales dans le microbiome cutané. Les inventeurs de la présente invention ont constaté que, lorsqu'une composition détergente contient un tensioactif de type alkylsulfate et présente simultanément des niveaux faibles ou nuls d'un tensioactif sulfonate d'alkylbenzène et ayant des niveaux faibles ou nuls d'un système de blanchiment, la composition détergente solide épargne les bonnes bactéries et les bactéries commensales présentes à la surface de la peau. La composition détergente solide de la présente invention permet d'obtenir une composition détergente respectueuse du microbiome cutané, tout en conservant les performances de nettoyage de la composition.
EP22768403.2A 2021-08-27 2022-08-23 Composition détergente Pending EP4392514A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP21193557 2021-08-27
EP21193565 2021-08-27
PCT/EP2022/073373 WO2023025744A1 (fr) 2021-08-27 2022-08-23 Composition détergente

Publications (1)

Publication Number Publication Date
EP4392514A1 true EP4392514A1 (fr) 2024-07-03

Family

ID=83271476

Family Applications (2)

Application Number Title Priority Date Filing Date
EP22768403.2A Pending EP4392514A1 (fr) 2021-08-27 2022-08-23 Composition détergente
EP22768406.5A Pending EP4392515A1 (fr) 2021-08-27 2022-08-23 Utilisation d'une composition détergente

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP22768406.5A Pending EP4392515A1 (fr) 2021-08-27 2022-08-23 Utilisation d'une composition détergente

Country Status (2)

Country Link
EP (2) EP4392514A1 (fr)
WO (2) WO2023025748A1 (fr)

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Also Published As

Publication number Publication date
WO2023025748A1 (fr) 2023-03-02
WO2023025744A1 (fr) 2023-03-02
EP4392515A1 (fr) 2024-07-03

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