EP3372664A2 - Verwendung einer flüssigen wäschewaschmittelzusammensetzung zur minimierung von nebenwirkungen bei versehentlicher exposition mit inhaltsstoffen von wasserlöslichen einheitsdosisartikeln - Google Patents

Verwendung einer flüssigen wäschewaschmittelzusammensetzung zur minimierung von nebenwirkungen bei versehentlicher exposition mit inhaltsstoffen von wasserlöslichen einheitsdosisartikeln Download PDF

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Publication number
EP3372664A2
EP3372664A2 EP18157951.7A EP18157951A EP3372664A2 EP 3372664 A2 EP3372664 A2 EP 3372664A2 EP 18157951 A EP18157951 A EP 18157951A EP 3372664 A2 EP3372664 A2 EP 3372664A2
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EP
European Patent Office
Prior art keywords
detergent composition
laundry detergent
liquid laundry
acid
water
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.)
Withdrawn
Application number
EP18157951.7A
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English (en)
French (fr)
Other versions
EP3372664A3 (de
Inventor
Oreste Todini
Wouter WALRAVENS
Harry William Broening
Karel Jozef Maria Depoot
Jean-Francois Bodet
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.)
Procter and Gamble Co
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Procter and Gamble Co
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.)
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Publication date
Application filed by Procter and Gamble Co filed Critical Procter and Gamble Co
Publication of EP3372664A2 publication Critical patent/EP3372664A2/de
Publication of EP3372664A3 publication Critical patent/EP3372664A3/de
Withdrawn legal-status Critical Current

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    • 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
    • C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
    • C11D17/041—Compositions releasably affixed on a substrate or incorporated into a dispensing means
    • C11D17/042—Water soluble or water disintegrable containers or substrates containing cleaning compositions or additives for cleaning compositions
    • C11D17/043—Liquid or thixotropic (gel) compositions
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2082—Polycarboxylic acids-salts thereof
    • 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
    • C11D3/26—Organic compounds containing nitrogen
    • C11D3/33—Amino carboxylic acids
    • 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
    • C11D3/36—Organic compounds containing phosphorus
    • C11D3/361—Phosphonates, phosphinates or phosphonites
    • 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
    • C11D3/36—Organic compounds containing phosphorus
    • C11D3/364—Organic compounds containing phosphorus containing nitrogen

Definitions

  • the present invention relates to the use of a liquid laundry detergent composition to minimize the adverse effects of rare accidental exposure of the detergent composition comprised with a liquid laundry detergent composition.
  • Laundry water-soluble unit dose articles are liked by consumers as they are efficient and convenient to use. They offer simple unit dosing of laundry detergent composition to be used in the laundry wash operation removing the need for inconvenient and messy dosing.
  • a liquid laundry detergent composition according to the present invention comprised within a water-soluble unit dose article provided a desired reduction in adverse effects from rare accidental exposures to the contents of the water-soluble unit dose article whilst providing laundry cleaning, especially greasy food stain cleaning, and freshness benefits and still maintaining a good whiteness profile.
  • a first aspect of the present invention is the use of a liquid laundry detergent composition comprised in a water-soluble unit dose article to provide laundry cleaning benefits and to minimize potential adverse effects associated with accidental exposure to said liquid laundry detergent composition contained within the water-soluble unit dose article, wherein the liquid laundry detergent composition has an ionic strength of less than 2Mol/Liter, preferably less than 1.5Mol/Liter, even more preferably less than 1Mol/Liter.
  • a second aspect of the present invention is the use of a liquid laundry detergent composition comprised in a water-soluble unit dose article to provide laundry cleaning benefits and to minimize potential adverse effects associated with accidental exposure to said liquid laundry detergent composition contained within the water-soluble unit dose article, wherein the liquid laundry detergent composition comprises less than 3%, preferably less than 2.5%, more preferably less than 2%, even more preferably less than 1.5%, most preferably less than 1% by weight of the liquid laundry detergent composition of a chelant.
  • a third aspect of the present invention is a liquid laundry detergent composition as according to the present invention suitable for use in a water-soluble unit dose article, wherein the liquid laundry detergent composition has an ionic strength of less than 2Mol/Liter, preferably less than 1.5Mol/Liter, even more preferably less than Mol/Liter and between 0% and 15%, preferably between 0% and 9.5%, preferably between 0.01% and 9%, more preferably between 0.1% and 7%, even more preferably between 1% and 5%, most preferably between 1% and 3% by weight of the liquid laundry detergent composition of the fatty alcohol ethoxylate non-ionic surfactant, wherein the fatty alcohol ethoxylate preferably has an average alkyl carbon chain length of between 5 and 30, preferably between 8 and 18, more preferably between 10 and 16, most preferably between 12 and 15 and wherein the fatty alcohol ethoxylate preferably has an average degree of ethoxylation of between 0.5 and 20, preferably between 1 and 15, more preferably between 5 and 12, even more
  • the liquid laundry detergent composition may comprise less than 3%, preferably less than 2.5%, more preferably less than 2%, even more preferably less than 1.5%, most preferably less than 1% by weight of the liquid laundry detergent composition of a chelant and between 0% and 9.5%, preferably between 0.01% and 9%, more preferably between 0.1% and 7%, even more preferably between 1% and 5%, most preferably between 1% and 3% by weight of the liquid laundry detergent composition of a fatty alcohol ethoxylate non-ionic surfactant, wherein the fatty alcohol ethoxylate preferably has an average alkyl carbon chain length of between 5 and 30, preferably between 8 and 18, more preferably between 10 and 16, most preferably between 12 and 15 and wherein the fatty alcohol ethoxylate preferably has an average degree of ethoxylation of between 0.5 and 20, preferably between 1 and 15, more preferably between 5 and 12, even more preferably between 6 and 10, most preferably between 7 and 8.
  • the present invention is to the use of a liquid laundry detergent composition comprised in a water-soluble unit dose article to provide laundry cleaning benefits and to minimize potential adverse effects associated with accidental exposure to said liquid laundry detergent composition contained within the water-soluble unit dose article.
  • water-soluble unit dose articles contain a single dose of a laundry detergent composition enveloped in a water-soluble film.
  • the consumer places the entire article into the drum of a washing machine or other wash receptacle together with fabrics to be washed.
  • the water-soluble film dissolves releasing the laundry detergent composition contained within into the water and into contact with the fabrics.
  • the concept is that the laundry detergent composition remains contained within the unit dose article until the unit dose article is contacted with water during use.
  • Irritation is herein defined as the production of changes to the body following the application of test chemical to the anterior surface of the body, which are fully reversible within 21 days of application.
  • eye irritation is defined as the production of changes in the eye following the application of test chemical to the anterior surface of the eye, which are fully reversible within 21 days of application.
  • the term is interchangeable with "Reversible effects on the Eye” and with "UN GHS Category 2" (4), and can be assessed following the OECD Guidelines for Testing of Chemicals, Test No. 438: Isolated Chicken Eye Test Method for Identifying i) Chemicals Inducing Serious Eye Damage and ii) Chemicals Not Requiring Classification for Eye Irritation or Serious Eye Damage (Adopted version : 26 July 2013).
  • the liquid laundry detergent composition minimizes potential adverse effects associated with accidental exposure to said liquid laundry detergent composition contained within the water-soluble unit dose article by minimizing potential adverse effects of the water-soluble unit dose article, preferably reducing skin irritation, eye irritation or a mixture thereof, most preferably eye irritation, of the water-soluble unit dose article.
  • the liquid laundry detergent composition has an ionic strength of less than 2Mol/Liter, preferably less than 1.5Mol/Liter, even more preferably less than 1Mol/Liter.
  • the liquid laundry detergent composition comprises less than 3%, preferably less than 2.5%, more preferably less than 2%, even more preferably less than 1.5%, most preferably less than 1% by weight of the liquid laundry detergent composition of a chelant.
  • the liquid laundry detergent composition according to the present invention suitable for use in a water-soluble unit dose article has an ionic strength of less than 2Mol/Liter, preferably less than 1.5Mol/Liter, even more preferably less than Mol/Liter and between 0% and 15%, preferably between 0% and 9.5%, preferably between 0.01% and 9%, more preferably between 0.1% and 7%, even more preferably between 1% and 5%, most preferably between 1% and 3% by weight of the liquid laundry detergent composition of the fatty alcohol ethoxylate non-ionic surfactant, wherein the fatty alcohol ethoxylate preferably has an average alkyl carbon chain length of between 5 and 30, preferably between 8 and 18, more preferably between 10 and 16, most preferably between 12 and 15 and wherein the fatty alcohol ethoxylate preferably has an average degree of ethoxylation of between 0.5 and 20, preferably between 1 and 15, more preferably between 5 and 12, even more preferably between 6 and 10, most preferably between 7 and 8.
  • the liquid laundry detergent composition may comprise less than 3%, preferably less than 2.5%, more preferably less than 2%, even more preferably less than 1.5%, most preferably less than 1% by weight of the liquid laundry detergent composition of a chelant and between 0% and 9.5%, preferably between 0.01% and 9%, more preferably between 0.1% and 7%, even more preferably between 1% and 5%, most preferably between 1% and 3% by weight of the liquid laundry detergent composition of a fatty alcohol ethoxylate non-ionic surfactant, wherein the fatty alcohol ethoxylate preferably has an average alkyl carbon chain length of between 5 and 30, preferably between 8 and 18, more preferably between 10 and 16, most preferably between 12 and 15 and wherein the fatty alcohol ethoxylate preferably has an average degree of ethoxylation of between 0.5 and 20, preferably between 1 and 15, more preferably between 5 and 12, even more preferably between 6 and 10, most preferably between 7 and 8.
  • liquid laundry detergent composition is described in more detail below.
  • the potential adverse effects associated with accidental exposure to said liquid laundry detergent composition contained within the water-soluble unit dose article is for example when the water-soluble unit dose article is accidentally prematurely ruptured and the skin, eye or mixture thereof of the user are contacted with the liquid laundry detergent composition.
  • the water-soluble unit dose article comprises the water-soluble film shaped such that the unit-dose article comprises at least one internal compartment surrounded by the water-soluble film.
  • the unit dose article may comprise a first water-soluble film and a second water-soluble film sealed to one another such to define the internal compartment.
  • the water-soluble unit dose article is constructed such that the liquid laundry detergent composition does not leak out of the compartment during storage. However, upon addition of the water-soluble unit dose article to water, the water-soluble film dissolves and releases the contents of the internal compartment into the wash liquor.
  • the compartment should be understood as meaning a closed internal space within the unit dose article, which holds the liquid laundry detergent composition.
  • a first water-soluble film may be shaped to comprise an open compartment into which the liquid laundry detergent composition is added.
  • a second water-soluble film is then laid over the first film in such an orientation as to close the opening of the compartment. The first and second films are then sealed together along a seal region.
  • the water-soluble film is described in more detail below.
  • the unit dose article may comprise more than one compartment, even at least two compartments, or even at least three compartments.
  • the compartments may be arranged in superposed orientation, i.e. one positioned on top of the other. In such an orientation the unit dose article will comprise three films, top, middle and bottom.
  • the compartments may be positioned in a side-by-side orientation, i.e. one orientated next to the other.
  • the compartments may even be orientated in a 'tyre and rim' arrangement, i.e. a first compartment is positioned next to a second compartment, but the first compartment at least partially surrounds the second compartment, but does not completely enclose the second compartment.
  • one compartment may be completely enclosed within another compartment.
  • the unit dose article comprises at least two compartments, one of the compartments may be smaller than the other compartment.
  • the unit dose article comprises at least three compartments, two of the compartments may be smaller than the third compartment, and preferably the smaller compartments are superposed on the larger compartment.
  • the superposed compartments preferably are orientated side-by-side.
  • the liquid laundry detergent composition according to the present invention may be comprised in at least one of the compartments. It may for example be comprised in just one compartment, or may be comprised in two compartments, or even in three compartments.
  • Each compartment may comprise the same or different compositions.
  • the different compositions could all be in the same form, or they may be in different forms.
  • the water-soluble unit dose article may comprise at least two internal compartments, wherein the liquid laundry detergent composition is comprised in at least one of the compartments, preferably wherein the unit dose article comprises at least three compartments, wherein the detergent composition is comprised in at least one of the compartments.
  • the water-soluble unit dose article comprises at least two compartments and the liquid laundry detergent composition is comprised in at least one compartment, preferably wherein the water-soluble unit dose article comprises at least two compartments of different sizes and the liquid laundry detergent composition is comprised in at least the larger compartment.
  • the film of the present invention is soluble or dispersible in water.
  • the water-soluble film preferably has a thickness of from 20 to 150 micron, preferably 35 to 125 micron, even more preferably 50 to 110 micron, most preferably about 76 micron.
  • the film has a water-solubility of at least 50%, preferably at least 75% or even at least 95%, as measured by the method set out here after using a glass-filter with a maximum pore size of 20 microns:
  • Preferred film materials are preferably polymeric materials.
  • the film material can, for example, be obtained by casting, blow-moulding, extrusion or blown extrusion of the polymeric material, as known in the art.
  • Preferred polymers, copolymers or derivatives thereof suitable for use as pouch material are selected from polyvinyl alcohols, polyvinyl pyrrolidone, polyalkylene oxides, acrylamide, acrylic acid, cellulose, cellulose ethers, cellulose esters, cellulose amides, polyvinyl acetates, polycarboxylic acids and salts, polyaminoacids or peptides, polyamides, polyacrylamide, copolymers of maleic/acrylic acids, polysaccharides including starch and gelatine, natural gums such as xanthum and carragum.
  • More preferred polymers are selected from polyacrylates and water-soluble acrylate copolymers, methylcellulose, carboxymethylcellulose sodium, dextrin, ethylcellulose, hydroxyethyl cellulose, hydroxypropyl methylcellulose, maltodextrin, polymethacrylates, and most preferably selected from polyvinyl alcohols, polyvinyl alcohol copolymers and hydroxypropyl methyl cellulose (HPMC), and combinations thereof.
  • the level of polymer in the pouch material for example a PVA polymer, is at least 60%.
  • the polymer can have any weight average molecular weight, preferably from about 1000 to 1,000,000, more preferably from about 10,000 to 300,000 yet more preferably from about 20,000 to 150,000.
  • polymers and/or copolymers can also be used as the pouch material, especially mixtures of polyvinylalcohol polymers and/or copolymers, especially mixtures of polyvinylalcohol homopolymers and/or anionic polyvinylalcohol copolymers preferably selected from sulphonated and carboxylated anionic polyvinylalcohol copolymers especially carboxylated anionic polyvinylalcohol copolymers.
  • the water soluble film comprises a blend of a polyvinylalcohol homopolymer and a carboxylated anionic polyvinylalcohol copolymer.
  • Preferred films exhibit good dissolution in cold water, meaning unheated distilled water.
  • Preferably such films exhibit good dissolution at temperatures of 24°C, even more preferably at 10°C.
  • good dissolution it is meant that the film exhibits water-solubility of at least 50%, preferably at least 75% or even at least 95%, as measured by the method set out here after using a glass-filter with a maximum pore size of 20 microns, described above.
  • Preferred films are those supplied by Monosol under the trade references M8630, M8900, M8779, M8310.
  • the film may be opaque, transparent or translucent.
  • the film may comprise a printed area.
  • the area of print may be achieved using standard techniques, such as flexographic printing or inkjet printing.
  • the film may comprise an aversive agent, for example a bittering agent.
  • Suitable bittering agents include, but are not limited to, naringin, sucrose octaacetate, quinine hydrochloride, denatonium benzoate, or mixtures thereof.
  • Any suitable level of aversive agent may be used in the film. Suitable levels include, but are not limited to, 1 to 5000ppm, or even 100 to 2500ppm, or even 250 to 2000rpm.
  • the water-soluble unit dose article comprises a water-soluble film, preferably wherein the water-soluble film comprises polyvinyl alcohol, preferably wherein the water-soluble film comprises polyvinyl alcohol polymer or copolymer, preferably a blend of polyvinylalcohol polymers and/or polyvinylalcohol copolymers, more preferably selected from sulphonated and carboxylated anionic polyvinylalcohol copolymers especially carboxylated anionic polyvinylalcohol copolymers, most preferably a blend of a polyvinylalcohol homopolymer and a carboxylated anionic polyvinylalcohol copolymer.
  • liquid laundry detergent composition refers to any laundry detergent composition comprising a liquid capable of wetting and treating a fabric, and includes, but is not limited to, liquids, gels, pastes, dispersions and the like.
  • the liquid composition can include solids or gases in suitably subdivided form, but the liquid composition excludes forms which are non-fluid overall, such as tablets or granules.
  • the liquid laundry detergent composition has an ionic strength of less than 2Mol/Liter, preferably less than 1.5Mol/Liter, even more preferably less than 1Mol/Liter.
  • Ionic Strength is a measure of ion concentration in a finished liquid detergent formulation.
  • IS is ionic strength
  • weight % of species in a finished liquid detergent composition is weight percent of species from which an ion can be formed in the composition
  • MW s is molecular weight of a species from which an ion y can be formed
  • n y is number of ions
  • q y is the charge of the ion in the composition under the pH of the finished liquid detergent composition
  • liquid density is the density of the finished liquid detergent formulation. Only dissolved species in the finished liquid detergent formulation are considered in the calculation,
  • the liquid laundry detergent composition comprises less than 3%, preferably less than 2.5%, more preferably less than 2%, even more preferably less than 1.5%, most preferably less than 1% by weight of the liquid laundry detergent composition of a chelant.
  • the liquid laundry detergent composition according to the present invention suitable for use in a water-soluble unit dose article has an ionic strength of less than 2Mol/Liter, preferably less than 1.5Mol/Liter, even more preferably less than Mol/Liter and between 0% and 15%, preferably between 0% and 9.5%, preferably between 0.01% and 9%, more preferably between 0.1% and 7%, even more preferably between 1% and 5%, most preferably between 1% and 3% by weight of the liquid laundry detergent composition of the fatty alcohol ethoxylate non-ionic surfactant, wherein the fatty alcohol ethoxylate preferably has an average alkyl carbon chain length of between 5 and 30, preferably between 8 and 18, more preferably between 10 and 16, most preferably between 12 and 15 and wherein the fatty alcohol ethoxylate preferably has an average degree of ethoxylation of between 0.5 and 20, preferably between 1 and 15, more preferably between 5 and 12, even more preferably between 6 and 10, most preferably between 7 and 8.
  • Suitable alcohol ethoxylate nonionic surfactants include the condensation products of aliphatic alcohols with ethylene oxide.
  • the alkyl chain of the aliphatic alcohol can either be straight or branched, substituted or unsubstituted.
  • the starting alcohol can be naturally derived, e.g. starting from natural oils, or synthetically derived, e.g. alcohols obtained from for example oxo-, modified oxo- or Fischer-Tropsch processes.
  • oxo-process derived alcohols include the Lial and Isalchem alcohols ex Sasol company and Lutensol alcohols ex BASF company.
  • modified-oxo process derived alcohols include the Neodol alcohols ex Shell company.
  • Fischer-Tropsch derived alcohols include Safol alcohols ex Sasol company.
  • the alkoxylate chain of alcohol ethoxylates is made up solely of ethoxylate groups.
  • the fatty alcohol ethoxylate has an average alkyl carbon chain length of between 5 and 30, preferably between 8 and 18, more preferably between 10 and 16, most preferably between 12 and 15.
  • the fatty alcohol ethoxylate has an average degree of ethoxylation of between 0.5 and 20, preferably between 1 and 15, more preferably between 5 and 12, even more preferably between 6 and 10, most preferably between 7 and 8.
  • Suitable for use herein are the ethoxylated alcohol of the formula R(OC 2 H 4 )n OH, wherein R is selected from the group consisting of aliphatic hydrocarbon radicals containing from about 8 to about 22 carbon atoms and the average value of n is from about 5 to about 22.
  • particularly useful materials are condensation products of C 9 -C 16 alcohols with from about 5 to about 20 moles of ethylene oxide per mole of alcohol.
  • particularly useful materials are condensation products of C 12 -C 16 alcohols with from about 6 to about 9 moles of ethylene oxide per mole of alcohol.
  • nonionic surfactants may include: C12-C18 alkyl ethoxylates based on modified oxo alcohols, such as, NEODOL® nonionic surfactants from Shell; C12-C15 alkyl ethoxylates based on Fischer Tropsch Oxo alcohols, such as, SAFOL® nonionic surfactants from Sasol; C12-C18 alkyl ethoxylates based on natural or Ziegler alcohols, such as, Surfonic® nonionic surfactants from Huntsman; C14-C22 mid-chain branched alcohols ethoxylates, BAE x , wherein x is from 1 to 30.
  • modified oxo alcohols such as, NEODOL® nonionic surfactants from Shell
  • C12-C15 alkyl ethoxylates based on Fischer Tropsch Oxo alcohols such as, SAFOL® nonionic surfactants from Sasol
  • the liquid laundry detergent composition may comprise less than 3%, preferably less than 2.5%, more preferably less than 2%, even more preferably less than 1.5%, most preferably less than 1% by weight of the liquid laundry detergent composition of a chelant.
  • chelation means the binding or complexation of a bi- or multidentate ligand.
  • ligands which are often organic compounds, are called chelants, chelators, chelating agents, and/or sequestering agent.
  • Chelating agents form multiple bonds with a single metal ion.
  • Chelants are chemicals that form soluble, complex molecules with certain metal ions, inactivating the ions so that they cannot normally react with other elements or ions to produce precipitates or scale.
  • the ligand forms a chelate complex with the substrate. The term is reserved for complexes in which the metal ion is bound to two or more atoms of the chelant.
  • the chelant is preferably selected from the group consisting of amino carboxylates, amino phosphonates, polycarboxylates, polyfunctionally-substituted aromatic chelating agents and mixtures thereof, preferably selected from the group consisting of glutamic-N,N- diacetic acid (GLDA), methyl-glycine-diacetic acid (MGDA), Diethylenetriamine penta methylphosphonic acid (DTPMP), 1-hydroxyethane 1,1-diphosphonic acid (HEDP), ethylenediaminetetra-acetates (EDTA), N-hydroxyethylethylenediaminetriacetates, nitrilo-triacetates (NTA), ethylenediamine tetrapro-prionates, triethylenetetraaminehexacetates, diethylenetriaminepentaacetates, aspartic acid-N-monoacetic acid (ASMA), aspartic acid-N,N-diacetic acid (ASDA), aspartic acid-N- mono
  • the liquid laundry detergent composition comprises between 0% and 15%, preferably between 0% and 9.5%, preferably between 0.01% and 9%, more preferably between 0.1% and 7%, even more preferably between 1% and 5%, most preferably between 1% and 3% by weight of the liquid laundry detergent composition of a fatty alcohol ethoxylate non-ionic surfactant.
  • the liquid laundry detergent composition may comprise less than 3%, preferably less than 2.5%, more preferably less than 2%, even more preferably less than 1.5%, most preferably less than 1% by weight of the liquid laundry detergent composition of a chelant and between 0% and 9.5%, preferably between 0.01% and 9%, more preferably between 0.1% and 7%, even more preferably between 1% and 5%, most preferably between 1% and 3% by weight of the liquid laundry detergent composition of a fatty alcohol ethoxylate non-ionic surfactant, wherein the fatty alcohol ethoxylate preferably has an average alkyl carbon chain length of between 5 and 30, preferably between 8 and 18, more preferably between 10 and 16, most preferably between 12 and 15 and wherein the fatty alcohol ethoxylate preferably has an average degree of ethoxylation of between 0.5 and 20, preferably between 1 and 15, more preferably between 5 and 12, even more preferably between 6 and 10, most preferably between 7 and 8 as described above.
  • the liquid laundry detergent composition may comprise up to 50%, preferably between 5% and 50%, more preferably between 7.5% and 45%, even more preferably between 10% and 40%, or even more preferably between 12% and 35%, most preferably between 15% and 30% or even between 15% and 25% by weight of the liquid laundry detergent composition of a non-soap anionic surfactant.
  • the non-soap anionic surfactant may comprises a sulphate or a sulphonate anionic surfactant or a mixture thereof, preferably linear alkylbenzene sulphonate, alkyl sulphate, alkoxylated alkyl sulphate or a mixture thereof, more preferably a mixture of linear alkylbenzene sulphonate and alkoxylated alkyl sulphate.
  • the ratio of linear alkylbenzene sulphonate to alkoxylated alkyl sulphate more preferably the ratio of linear alkylbenzene sulphonate to ethoxylated alkyl sulphate is from 1:2 to 20:1, preferably from 1.1:1 to 15:1, more preferably from 1.2:1 to 10:1, even more preferably from 1.3:1 to 5:1, most preferably from 1.4:1 to 3:1.
  • the alkoxylated alkyl sulphate is an ethoxylated alkyl sulphate with an average degree of ethoxylation of between 0.5 and 7, preferably between 1 and 5, more preferably between 2 and 4, most preferably about 3.
  • the non-soap surfactant comprises a mixture of one or more alkoxylated alkyl sulphates, preferably ethoxylated alkyl sulphates, and optionally an alkyl sulphate, the mixture having an average degree of ethoxylation of between 0.5 and 7, preferably between 1 and 5, more preferably between 2 and 4, most preferably about 3.
  • the alkyl sulphate and/or alkoxylated alkyl sulphate preferably have an alkyl chain comprising on average between 8 and 18 carbon atoms, preferably between 10 and 16 carbons atoms, most preferably between 12 and 14 carbon atoms.
  • the alkoxylated alkyl sulphate is an ethoxylated alkyl chain comprising on average between 12 and 14 carbon atoms in its alkyl chain and has an average degree of ethoxylation of about 3.
  • the alkyl chain of the alkoxylated alkyl sulphate surfactant may be linear or branched or a mixture thereof.
  • the linear alkylbenzene sulphonate may be a C 10 -C 16 linear alkylbenzene sulphonate or a C 11 -C 14 linear alkylbenzene sulphonate or a mixture thereof.
  • Exemplary linear alkylbenzene sulphonates are C 10 -C 16 alkyl benzene sulfonic acids, or C 11 -C 14 alkyl benzene sulfonic acids.
  • 'linear' we herein mean the alkyl group is linear.
  • Alkyl benzene sulfonates are well known in the art.
  • the weight ratio of non-soap anionic surfactant to fatty alcohol ethoxylate non-ionic surfactant is between 5:1 and 23:1 preferably between 7:1 and 23:1, more preferably between 8:1 and 23:1, most preferably between 9:1 and 20:1.
  • the liquid laundry detergent composition comprises between 15% and 40%, preferably between 20% and 35%, more preferably between 25% and 30% by weight of the liquid laundry detergent composition of non-soap surfactant.
  • the liquid laundry detergent composition may comprise less than 10%, preferably less than 8%, more preferably less than 5%, most preferably between 1% and 5% by weight of the liquid laundry detergent composition of fatty acid, neutralised fatty acid soap or a mixture thereof.
  • the neutralised fatty acid soap may be alkali metal neutralised, amine neutralised or a mixture thereof.
  • the alkali metal may be selected from sodium, potassium, magnesium or a mixture thereof, preferably sodium.
  • the amine is preferably an alkanolamine, preferably selected from monethanolamine, diethanolamine, triethanolamine or a mixture thereof, more preferably monoethanolamine.
  • the fatty acid, neutralised fatty acid soap or mixture thereof may be selected from palm kernel fatty acid, coconut fatty acid, rapeseed fatty acid, neutralized palm kernel fatty acid, neutralized coconut fatty acid, neutralized rapeseed fatty acid, or mixture thereof, preferably neutralized palm kernel fatty acid.
  • the liquid laundry detergent composition may comprise between 0.1% and 10%, preferably between 0.5% and 8%, more preferably between 1% and 7%, even more preferably between 2% and 6%, most preferably between 3% and 5% by weight of the liquid laundry detergent composition of a soil release polymer, wherein the soil release polymer is preferably selected from polyester terephthalates, polyethylene glycol containing soil release polymers and a mixture thereof.
  • An example of a preferred polyethyleneglycol containing soil release polymer comprises a polyethylene glycol graft polymer comprising a polyethylene glycol backbone (Pluriol E6000) and hydrophobic vinyl acetate side chains, comprising 40% by weight of the polymer system of a polyethylene glycol backbone polymer and 60% by weight of the polymer system of the grafted vinyl acetate side chains.
  • Polyester terephtalate soil release polymers are commercially available from Clariant under the Texcare SRN and SRA tradenames.
  • One particularly preferred polyester terephtalate soil release polymer is Texcare SRA300.
  • the liquid laundry detergent composition may comprise a polyethyleneimine, preferably an alkoxylated polyethyleneimine, more preferably an ethoxylated polyethyleneimine and wherein preferably the liquid laundry detergent composition comprises greater than 0.5%, preferably between 1% and 10%, more preferably between 2% and 7%, most preferably between 3% and 5% by weight of the liquid laundry detergent composition of the polyethyleneimine, preferably ethoxylated polyethyleneimine.
  • An example of an ethoxylated polyethyleneimine includes an ethoxylated polyethyleneimine with a polyethyleneimine backbone with a molecular weight of about 600, and comprising on average about 20 ethoxy units per ethoxylation chain.
  • the ratio of polyethyleneimine to soil release polymer is higher than 1:1, preferably between 1.1:1 and 5:1, more preferably between 1.2:1 and 3:1, most preferably between 1.3:1 and 2:1.
  • the liquid laundry detergent composition may comprise a polysaccharide polymer, a modified polysaccharide polymer, a polysaccharide derived polymer, or a mixture thereof, preferably a cellulosic polymer, a modified cellulosic polymer or a mixture thereof, most preferably a cationically modified cellulosic polymer or a mixture thereof.
  • the water-soluble unit dose article comprises up to 60% preferably up to 50%, more preferably up to 40% by weight of the liquid laundry detergent composition of a non-aqueous solvent, preferably selected from propylene glycol, dipropylene glycol, glycerol, sorbitol, ethanol or a mixture thereof.
  • a non-aqueous solvent preferably selected from propylene glycol, dipropylene glycol, glycerol, sorbitol, ethanol or a mixture thereof.
  • the liquid laundry detergent composition has a pH from 6 to 10 preferably from 7 to 9, more preferably from 7 to 8.
  • the liquid laundry detergent composition comprises a pH adjusting agent selected from alkanolamines, preferably monoethanolamine, diethanolamine, triethanolamine or a mixture thereof, most preferably monoethanolamine.
  • the liquid laundry detergent composition comprises an adjunct ingredient selected from hueing dyes, polymers, builders, dye transfer inhibiting agents, dispersants, enzymes, enzyme stabilizers, catalytic materials, bleach, bleach activators, polymeric dispersing agents, anti-redeposition agents, suds suppressors, aesthetic dyes, opacifiers, perfumes, perfume delivery systems, structurants, hydrotropes, processing aids, pigments, amphoteric surfactants, cyclic diamines, zwitterionic polyamines, anti-oxidants, preservatives and mixtures thereof.
  • an adjunct ingredient selected from hueing dyes, polymers, builders, dye transfer inhibiting agents, dispersants, enzymes, enzyme stabilizers, catalytic materials, bleach, bleach activators, polymeric dispersing agents, anti-redeposition agents, suds suppressors, aesthetic dyes, opacifiers, perfumes, perfume delivery systems, structurants, hydrotropes, processing aids, pigments, amphoteric surfactants, cyclic di
  • the water-soluble unit dose article comprises 15% or less by weight of the unit dose article of water, preferably the unit dose article comprises between 0.1% and 15%, more preferably between 1% and 12.5% by weight of the unit dose article of water.
  • a first water-soluble film may be shaped to comprise an open compartment into which the detergent composition is added.
  • a second water-soluble film is then laid over the first film in such an orientation as to close the opening of the compartment.
  • the first and second films are then sealed together along a seal region using known sealing means such as solvent, heat or a mixture thereof.
  • Test formulations were assessed for overall irritancy profile following the OECD Guidelines for Testing of Chemicals, Test No. 438: Isolated Chicken Eye Test Method for Identifying i) Chemicals Inducing Serious Eye Damage and ii) Chemicals Not Requiring Classification for Eye Irritation or Serious Eye Damage (Adopted version : 26 July 2013).
  • Irritation index CS + 20 * CO + 20 * FR in which CS equals the mean % of corneal swelling, CO equals the maximum mean opacity score and FR equals the mean fluorescein retention score at 30 minutes after treatment.
  • a higher irritation index reflects a worse irritancy profile.
  • FIGS. 1 to 2 have been extracted from the resulting irritancy formulation model.
  • the AES data reflect the irritancy index of an AES comprising paste (67.5% AES + 20% DTPK fatty acid + water/minors).
  • Active surfactant content reflects the combined % level by weight of the detergent composition of LAS, AES, FA and NI surfactant. Values in the X-axis reflect weight fraction of the specific compound relative to the total detergent formulation. From the data the following conclusions can be drawn :

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  • Wood Science & Technology (AREA)
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EP18157951.7A 2017-02-21 2018-02-21 Verwendung einer flüssigen wäschewaschmittelzusammensetzung zur minimierung von nebenwirkungen bei versehentlicher exposition mit inhaltsstoffen von wasserlöslichen einheitsdosisartikeln Withdrawn EP3372664A3 (de)

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016155993A1 (en) 2015-04-02 2016-10-06 Unilever Plc Composition

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DE102012208286A1 (de) * 2012-05-16 2013-11-21 Henkel Ag & Co. Kgaa Wasserarmes, flüssiges Waschmittel mit aus nachwachsenden Rohstoffen gewonnenen Tensiden
US9617501B2 (en) * 2014-08-27 2017-04-11 The Procter & Gamble Company Method of treating a fabric by washing with a detergent comprising an acrylamide/DADMAC cationic polymer
WO2016191238A1 (en) * 2015-05-22 2016-12-01 The Procter & Gamble Company Surfactant and detergent compositions containing propoxylated glycerine

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Publication number Priority date Publication date Assignee Title
WO2016155993A1 (en) 2015-04-02 2016-10-06 Unilever Plc Composition

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