WO2024153564A1 - Composition de blanchisserie - Google Patents

Composition de blanchisserie Download PDF

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Publication number
WO2024153564A1
WO2024153564A1 PCT/EP2024/050732 EP2024050732W WO2024153564A1 WO 2024153564 A1 WO2024153564 A1 WO 2024153564A1 EP 2024050732 W EP2024050732 W EP 2024050732W WO 2024153564 A1 WO2024153564 A1 WO 2024153564A1
Authority
WO
WIPO (PCT)
Prior art keywords
quaternary ammonium
ammonium compound
organic acids
salts
added
Prior art date
Application number
PCT/EP2024/050732
Other languages
English (en)
Inventor
Cherrylyn Villena DEJESUS
Denis James Gregory
Phillip RIGBY
Original Assignee
Unilever Ip Holdings B.V.
Unilever Global Ip Limited
Conopco, Inc., D/B/A Unilever
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 Ip Holdings B.V., Unilever Global Ip Limited, Conopco, Inc., D/B/A Unilever filed Critical Unilever Ip Holdings B.V.
Publication of WO2024153564A1 publication Critical patent/WO2024153564A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/0005—Other compounding ingredients characterised by their effect
    • C11D3/001—Softening compositions
    • C11D3/0015—Softening compositions liquid
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/38—Cationic compounds
    • C11D1/62—Quaternary ammonium compounds
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D11/00—Special methods for preparing compositions containing mixtures of detergents
    • C11D11/0094—Process for making liquid detergent compositions, e.g. slurries, pastes or gels
    • 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
    • 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
    • C11D3/2079—Monocarboxylic 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
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2075—Carboxylic acids-salts thereof
    • C11D3/2086—Hydroxy carboxylic acids-salts thereof

Definitions

  • the present invention is concerned with methods of formulating fabric conditioners comprising preservatives. of the Invention
  • Fabric conditioner compositions commonly comprise preservatives. Preservatives prevent the growth of mould or bacteria in the products. Traditionally preservatives are added to the formulation at the end of the production process, along with other minor ingredients. However, it has been identified that when using certain classes of preservatives, particularly lactic acid, sodium benzoate, potassium sorbate, this method can lead to instability in the compositions.
  • a fabric conditioner comprising quaternary ammonium compound and two or more organic acids or the salts thereof, wherein one or more organic acids or the salts thereof are added to water prior to the addition of a quaternary ammonium compound;
  • organic acids or salts thereof are selected from lactic acid, sodium benzoate, potassium sorbate;
  • composition comprises at least 75 wt.% water.
  • the method described herein involves the addition of two or more organic acids or the salts thereof, most preferably two to five organic acids or the salts thereof. Salts of the acids may be formed prior to addition to the composition of may form in the composition.
  • Organic acids are molecules comprising an acid group and at least one carbon atom.
  • the acid group is a carboxylic acid group.
  • the organic acids comprise only carbon, oxygen and hydrogen.
  • the organic acids When in the form of a salt the organic acids will additionally comprise a counter ion (which may be inorganic), such as sodium or potassium. The presence of two or more organic acids or salts thereof provides enhanced or synergistic preservation.
  • the organic acids or salts thereof are selected from: lactic acid, sodium benzoate, potassium sorbate or combinations thereof. These acids provide improved preservation.
  • the fabric conditioner comprises 0.001 wt.% to 6 wt.% of the organic acids or salt thereof, by weight of the fabric conditioner. More preferably the fabric conditioner comprises 0.002 wt.% to 5 wt.% organic acid or salt thereof. Even more preferably 0.003 to 3 wt.% of the organic acids or salt thereof, by weight of the fabric conditioner.
  • the method described herein further involves the addition of a quaternary ammonium compound.
  • the quaternary ammonium compound preferably comprises at least one chain derived from fatty acids, more preferably at least two chains derived from a fatty acid.
  • the fatty acids are defined as aliphatic monocarboxylic acids having a chain of 4 to 28 carbons.
  • Fatty acids may be derived from various sources such as tallow or plant sources.
  • the fatty acid chains are derived from plants.
  • the fatty acid chains of the QAC comprise from 10 to 50 wt. % of saturated C18 chains and from 5 to 40 wt. % of monounsaturated C18 chains by weight of total fatty acid chains.
  • the fatty acid chains of the QAC comprise from 20 to 40 wt. %, preferably from 25 to 35 wt. % of saturated C18 chains and from 10 to 35 wt. %, preferably from 15 to 30 wt. % of monounsaturated C18 chains, by weight of total fatty acid chains.
  • ester quats or ester-linked quaternary ammonium compounds.
  • Particularly preferred materials are ester-linked triethanolamine (TEA) quaternary ammonium compounds comprising a mixture of mono-, di- and tri-ester linked components.
  • TEA- based fabric softening compounds comprise a mixture of mono, di- and tri ester forms of the compound.
  • the di-ester linked component comprises no more than 70 wt.% of the fabric softening compound, more preferably no more than 60 wt.% e.g., even more preferably no more than 55%, and most preferably no more that 45% of the fabric softening compound.
  • the monoester component comprises at least 10 wt.% of the fabric softening compound.
  • a first group of quaternary ammonium compounds (QACs) suitable for use in the method described herein are represented by formula (I):
  • each R is independently selected from a C5 to C35 alkyl or alkenyl group;
  • R 1 represents a C1 to C4 alkyl, C2 to C4 alkenyl or a C1 to C4 hydroxyalkyl group;
  • T may be either O-CO. (i.e. an ester group bound to R via its carbon atom), or may alternatively be CO-O (i.e. an ester group bound to R via its oxygen atom);
  • n is a number selected from 1 to 4;
  • m is a number selected from 1 , 2, or 3; and
  • X- is an anionic counter-ion, such as a halide or alkyl sulphate, e.g.
  • each R 1 group is independently selected from C1 to C4 alkyl, hydroxyalkyl or C2 to C4 alkenyl groups; and wherein each R 2 group is independently selected from C8 to C28 alkyl or alkenyl groups; and wherein n, T, and X- are as defined above.
  • Preferred materials of this second group include 1 ,2 bis[tallowoyloxy]-3- trimethylammonium propane chloride, 1 ,2 bis[hardened tallowoyloxy]-3- trimethylammonium propane chloride, 1 ,2- bis[oleoyloxy]-3-trimethylammonium propane chloride, and 1 ,2 bis[stearoyloxy]-3- trimethylammonium propane chloride.
  • Such materials are described in US 4, 137,180 (Lever Brothers).
  • these materials also comprise an amount of the corresponding monoester.
  • a third group of QACs suitable for use in the method described herein are represented by formula (III): wherein each R 1 group is independently selected from C1 to C4 alkyl, or C2 to C4 alkenyl groups; and wherein each R 2 group is independently selected from C8 to C28 alkyl or alkenyl groups; and n, T, and X- are as defined above.
  • Preferred materials of this third group include bis(2-tallowoyloxyethyl)dimethyl ammonium chloride, partially hardened and hardened versions thereof.
  • a fourth group of QACs are represented the by the formula (IV):
  • a fifth group of QACs suitable for use in the method described herein are represented by formula (V)
  • Ri and R2 are independently selected from C10 to C22 alkyl or alkenyl groups, preferably C14 to C20 alkyl or alkenyl groups.
  • X- is as defined above.
  • the iodine value of the quaternary ammonium fabric conditioning material is preferably from 0 to 80, more preferably from 0 to 60, and most preferably from 0 to 45.
  • the iodine value may be chosen as appropriate.
  • Essentially saturated material having an iodine value of from 0 to 5, preferably from 0 to 1 may be used in the method described herein. Such materials are known as "hardened" quaternary ammonium compounds.
  • a further preferred range of iodine values is from 20 to 60, preferably 25 to 50, more preferably from 30 to 45.
  • a material of this type is a "soft" triethanolamine quaternary ammonium compound, preferably triethanolamine di-alkylester methylsulfate. Such ester-linked triethanolamine quaternary ammonium compounds comprise unsaturated fatty chains.
  • the iodine value represents the mean iodine value of the parent fatty acyl compounds or fatty acids of all the quaternary ammonium materials present.
  • the iodine value represents the mean iodine value of the parent acyl compounds of fatty acids of all of the quaternary ammonium materials present.
  • Iodine value refers to, the fatty acid used to produce the QAC, the measurement of the degree of unsaturation present in a material by a method of nmr spectroscopy as described in Anal. Chem., 34, 1136 (1962) Johnson and Shoolery.
  • a further type of quaternary ammonium compound may be a non-ester quaternary ammonium material represented by formula (VI): wherein each R 1 group is independently selected from C1 to C4 alkyl, hydroxyalkyl or C2 to C4 alkenyl groups; R 2 group is independently selected from C8 to C28 alkyl or alkenyl groups, and X- is as defined above.
  • the fabric conditioners produced in the method of the method described herein comprise more than 1 wt. % quaternary ammonium compound, more preferably more than 2 wt. % quaternary ammonium compound, most preferably more than 3 wt. % quaternary ammonium compound by weight of the composition.
  • the fabric conditioners produced in the method described herein comprise less than 18 wt. % quaternary ammonium compound, more preferably less than 17 wt. % quaternary ammonium compound, most preferably less than 16 wt. % quaternary ammonium compound by weight of the composition.
  • the fabric conditioners comprise 1 to 18 wt. % quaternary ammonium compound, preferably 2 to 17 wt.% quaternary ammonium compound and more preferably 3 to 16 wt. % quaternary ammonium compound by weight of the composition.
  • the method described here involves adding ingredients to water.
  • the fabric conditioner produced in the method preferably comprises at least 75 wt.% water, i.e. 75 to 98 wt.% water by weight of the composition.
  • non-ionic surfactants such as the addition products of ethylene oxide and/or propylene oxide with fatty alcohols, fatty acids and fatty amines
  • fatty alcohols such as the addition products of ethylene oxide and/or propylene oxide with fatty alcohols, fatty acids and fatty amines
  • fatty acids such as the addition products of ethylene oxide and/or propylene oxide with fatty alcohols, fatty acids and fatty acids
  • antifoams such as the addition products of ethylene oxide and/or propylene oxide with fatty alcohols, fatty acids and fatty amines
  • antifoams such as the addition products of ethylene oxide and/or propylene oxide with fatty alcohols, fatty acids and fatty amines
  • antifoams such as the addition products of ethylene oxide and/or propylene oxide with fatty alcohols, fatty acids and fatty amines
  • antifoams such as the addition products of ethylene oxide and/or propylene oxide with fatty alcohols, fatty
  • bactericides pH buffering agents, perfume carriers, hydrotropes, anti-redeposition agents, soil-release agents, polyelectrolytes, anti-shrinking agents, anti-wrinkle agents, anti-oxidants, dyes, colorants, sunscreens, anti-corrosion agents, drape imparting agents, anti-static agents, sequestrants and ironing aids.
  • the products of the method described herein may contain pearlisers and/or opacifiers.
  • a preferred sequestrant is HEDP, an abbreviation for Etidronic acid or 1 -hydroxyethane 1 ,1-diphosphonic acid.
  • Such ingredients may be added at any stage of the preparation method i.e. before the organic acids, or between the addition of the organic acids and the quaternary ammonium compound, or after the addition of the quaternary ammonium compound.
  • Perfume ingredients may be free perfumes and/or encapsulated perfumes (perfume microcapsules).
  • the encapsulating materials preferably comprise, but are not limited to; aminoplasts, proteins, polyurethanes, polyacrylates, polymethacrylates, polysaccharides, polyamides, polyolefins, gums, silicones, lipids, modified cellulose, polyphosphate, polystyrene, polyesters or combinations thereof. More preferably the encapsulating materials comprise aminoplast, such as melamine formaldehyde or urea formaldehyde microcapsules, proteins and/or polysaccharides.
  • the fabric conditioners produced in the method described herein comprise preferably comprise 0.5 to 20 wt.% perfume ingredients by weight of the composition, more preferably 1 to 15 wt.% perfume materials, most preferably 2 to 10 wt. % perfume materials.
  • Free perfume and/or perfume microcapsules may be added at any stage of the preparation method i.e. before the organic acids, or between the addition of the organic acids and the quaternary ammonium compound, or after the addition of the quaternary ammonium compound. When both free perfume and perfume microcapsules are present, they may be added at the same stage of the method or at different stages of the method. Preferably free perfume is added after the quaternary ammonium compound. Preferably the free perfume is added after the mixture is cooled below 40°C.
  • the method described herein involves preparing a fabric conditioner, wherein at least one organic acids or the salts thereof are added to water prior to the addition of a quaternary ammonium compound.
  • a quaternary ammonium compound is pre-melted prior to addition to the water, more preferably the quaternary ammonium compound is pre-melted at 55- 70°C prior to addition to the water.
  • the method described herein maybe carried out in batch processing (for example all mixing taking place in one vessel) or continuous processing (for example ingredients being added sequentially along a feed pipe). Mixing is preferably employed in the method. Mixing may be by any suitable means, for example a paddle stirrer in a tank or a static mixer in a feed pipe.
  • the formulation is stirred after the addition of the quaternary ammonium compound, mixing may additionally take place at other stages of the method.
  • the water used in the method is preferably maintained at a temperature of 20°C to 55°C, more preferably 30°C to 50°C.
  • Each formulation (1 and 2) were prepared by processes 1 and A.
  • the storage stability of the resulting formulations was assessed by their viscosities.
  • Viscosity was assessed using with a Thermo Scientific Haake RheoStress 1 Model; using a cone & plate (C60/1 0 geometry) for 30 seconds at 106s-1 shear rate, at a temperature of 25°C.
  • Table 2 Formula 1 stability
  • Table 3 Formula 2 stability Formulations prepared using process 2 maintained their initial viscosity for a longer period of time. These formulations were more stable on storage.

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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)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)

Abstract

L'invention concerne un procédé de préparation d'un conditionneur de tissu comprenant un composé d'ammonium quaternaire et un ou plusieurs acides organiques ou leurs sels, un ou plusieurs acides organiques ou leurs sels étant ajoutés à de l'eau avant l'ajout d'un composé d'ammonium quaternaire.
PCT/EP2024/050732 2023-01-19 2024-01-12 Composition de blanchisserie WO2024153564A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP23152490 2023-01-19
EP23152490.1 2023-01-19

Publications (1)

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WO2024153564A1 true WO2024153564A1 (fr) 2024-07-25

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4137180A (en) 1976-07-02 1979-01-30 Lever Brothers Company Fabric treatment materials
GB1599171A (en) * 1977-05-30 1981-09-30 Procter & Gamble Textile treatment composition
US20140189962A1 (en) * 2011-08-26 2014-07-10 Colgate-Palmolive Company Fabric Wrinkle Reduction Composition
WO2019142194A1 (fr) * 2018-01-17 2019-07-25 Sharon Laboratories Ltd. Compositions d'agent conservateur antimicrobien
WO2020099249A1 (fr) * 2018-11-14 2020-05-22 Unilever Plc Compositions de conditionneur de tissu
WO2022115442A1 (fr) * 2020-11-25 2022-06-02 Colgate-Palmolive Company Compositions adoucissantes pour tissus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4137180A (en) 1976-07-02 1979-01-30 Lever Brothers Company Fabric treatment materials
GB1599171A (en) * 1977-05-30 1981-09-30 Procter & Gamble Textile treatment composition
US20140189962A1 (en) * 2011-08-26 2014-07-10 Colgate-Palmolive Company Fabric Wrinkle Reduction Composition
WO2019142194A1 (fr) * 2018-01-17 2019-07-25 Sharon Laboratories Ltd. Compositions d'agent conservateur antimicrobien
WO2020099249A1 (fr) * 2018-11-14 2020-05-22 Unilever Plc Compositions de conditionneur de tissu
WO2022115442A1 (fr) * 2020-11-25 2022-06-02 Colgate-Palmolive Company Compositions adoucissantes pour tissus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JOHNSONSHOOLERY, ANAL. CHEM., vol. 34, 1962, pages 1136

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