WO2016083112A1 - Method for treating fabric having oily stains - Google Patents

Method for treating fabric having oily stains Download PDF

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Publication number
WO2016083112A1
WO2016083112A1 PCT/EP2015/076093 EP2015076093W WO2016083112A1 WO 2016083112 A1 WO2016083112 A1 WO 2016083112A1 EP 2015076093 W EP2015076093 W EP 2015076093W WO 2016083112 A1 WO2016083112 A1 WO 2016083112A1
Authority
WO
WIPO (PCT)
Prior art keywords
stained portion
fatty acids
fabric
detergent composition
monoglyceride
Prior art date
Application number
PCT/EP2015/076093
Other languages
English (en)
French (fr)
Inventor
Panchanan BHUNIA
Jiji Paul Kottukapally
Narayanan Subramaniam
Original Assignee
Unilever N.V.
Unilever Plc
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 N.V., Unilever Plc, Conopco, Inc., D/B/A Unilever filed Critical Unilever N.V.
Priority to CN201580060351.4A priority Critical patent/CN108603143B/zh
Priority to EP15791615.6A priority patent/EP3224335B1/en
Priority to BR112017010580-2A priority patent/BR112017010580B1/pt
Publication of WO2016083112A1 publication Critical patent/WO2016083112A1/en

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
    • 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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/37—Mixtures of compounds all of which are anionic
    • 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
    • C11D3/16—Organic compounds
    • C11D3/20—Organic compounds containing oxygen
    • C11D3/2093—Esters; Carbonates
    • 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
    • C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
    • C11D1/146—Sulfuric acid esters
    • 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
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/28—Sulfonation products derived from fatty acids or their derivatives, e.g. esters, amides
    • 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
    • C11D1/29—Sulfates of polyoxyalkylene ethers
    • 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
    • C11D1/667—Neutral esters, e.g. sorbitan esters
    • 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
    • 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
    • C11D2111/40—Specific cleaning or washing processes
    • C11D2111/44—Multi-step processes

Definitions

  • the invention relates to a method for removing oily stains from fabrics. Background of the invention
  • a typical two-step method usually involves successive treatment of the stained fabric with two separate components.
  • the stained fabric is contacted with a first component which generally is a stain-removing pretreatment composition.
  • the pretreated fabric is washed with a laundry detergent composition.
  • WO2013092184 A1 discloses a method for treating soiled fabrics to make it more susceptible to be cleaned in the subsequent wash cycle, in particular making the fabric more hydrophilic, and thereby enhancing oily stain removal.
  • the fabric treatment composition has a metal salt like polyaluminium chloride and a carboxylic polymer, an organic acid and a polysaccharide.
  • Stain removal has been an important objective of the detergent industry because if there is a method which can remove significant amount of stain, then this may allow for sustainable and more responsible use of detergent products or may even allow detergent compositions to be made usable and effective at lower temperature and thereby save substantial energy. Therefore there is still a continued interest in ways and means to aid and improve detergency, especially against oily stains like dirty motor oil on hydrophilic fabrics.
  • GB338121 (Marquardt and Walter, 1930) discloses a 2-step method of cleaning soiled fabrics in which the first component has saponifiable fatty acids such as oleic acid, palmitic acid, or stearic acid and the second component has alkaline saponifying agents such as sodium carbonate, sodium bicarbonate or sodium hydroxide.
  • a shear-thinning gel detergent composition is disclosed in US20040058838A1 (Unilever).
  • the composition contains non-neutralized fatty acid in specific amounts depending on the total surfactant level.
  • This product offers dual advantages of pre- treatment and mainwash detergency in the form of a single product.
  • a laundry pre- treatment composition having at least 55 wt% fatty acid with melting point greater than 20 °C, a polyhydric alcohol binder, water and surfactant is disclosed in W010023043 A1 (Unilever).
  • DE233841 1 A1 discloses a method for cleaning textiles for removing fatty soil.
  • the fabric is washed at 25 to 80 degC for 2 to 30 minutes with an emulsion containing fatty acids, followed by addition of an electrolyte.
  • the third step is washing with a detergent composition.
  • a method of cleaning fabrics having oily stains thereon includes a first step of applying one or more fatty acids to a stained portion of the fabric in which step there is no contact of said stained portion with any surfactant, and a second step of washing the stained portion in wash liquor having a detergent composition, characterised in that in the first step, a monoglyceride is applied to the stained portion simultaneously with the one or more fatty acids wherein the composition comprises a mixture of fatty acids containing 60 wt% to 90 wt% oleic acid, the balance being either stearic or palmitic acid or a combination thereof.
  • the method is a 2-step method.
  • the first step involves applying one or more fatty acids to a stained portion of the fabric. In this step there is no contact of the stained portion with any surfactant.
  • the stained portion is washed in wash liquor which has a detergent composition.
  • the characterising feature is that in the first step a monoglyceride is applied to the stained portion simultaneously with the one or more fatty acids.
  • surfactant means any surfactant other than monoglycerides.
  • the fabric may be any typical fabric such as cotton (woven, knitted and denim), polyester (woven, knitted and micro fibre), nylon, silk, polycotton (polyester/cotton blends), polyester elastane, cotton elastane, viscose rayon, acrylic or wool.
  • the method is particularly suitable for hydrophilic fabrics and more particularly to cotton or polycotton. Therefore it is preferred that the hydrophilic fabric is cotton or polycotton.
  • Other fabrics that can be treated include other synthetic as well as natural fabrics. It is envisaged that the method can be used to treat garments and other clothing and apparels that form typical wash-load in household laundry.
  • the household materials that can be treated include, but are not limited to, bedspreads, blankets, carpets, curtains and upholstery.
  • the stain may be any oily stain. Accordingly, in a preferred embodiment of the method, the stained portion of the fabric substantially contains oily or fatty stains. They are predominately solid in nature and such stains come into contact with fabrics in the course of their regular use. In a preferred embodiment, the stained portion of the fabric substantially contains oily or fatty stains. Non-limiting examples include tomato oil stain, curry oil stain and sebum derived stains as well as dirty motor oil stain.
  • the method is a 2-step method.
  • the first step involves applying fatty acids to a stained portion of the fabric. In this step there is no contact of the stained portion with any surfactant.
  • Any fatty acid is suitable, including but not limited to lauric, myristic, palmitic stearic, oleic, linoleic, linolenic acid, and mixtures thereof, preferably selected from fatty acids which are not crispy solids at room temperature.
  • Naturally obtainable fatty acids which are usually complex mixtures are also suitable (such as tallow, coconut, and palm kernel fatty acids).
  • the fatty acid is in the acidic form, i.e., in the non-neutralised form.
  • the composition comprises a mixture of fatty acids containing 60 wt% to 90 wt% oleic acid, the balance being either stearic or palmitic acid or a combination thereof.
  • the monoqlyceride also known as monoesters of glycerol and fatty acid
  • the characteristic feature of the invention is that in the first step a monoglyceride is applied to the stained portion either simultaneously with the one or more fatty acids.
  • Particularly suitable are those monolgycerides which are at least to some extent water dispersible.
  • Preferred materials include monoglycerides of glycerol and aliphatic fatty acids have a carbon chain containing 12 to 20 carbon atoms. Examples of such monoglycerides include glyceryl monolaurate, glyceryl m on omyri state, glyceryl monopalmitate and glyceryl mono stearate.
  • the ratio of total monoglyceride content to the total fatty acid content applied to the stained portion is in the range of 2:98 to 60:40 parts by weight. It is also particularly preferred that the monoglyceride is applied to the stained portion simultaneously with the one or more fatty acids.
  • a particularly preferred monoglyceride is glyceryl mono stearate. This material is preferred due to good performance, easy availability, degree of water dispersibility and suitable melting point. Glyceryl monostearate is also available as a non-emulsifying or a self-emulsifying material.
  • the monoglyceride is applied to the stained portion simultaneously with the one or more fatty acids.
  • the stained portion is treated with a pretreatment composition which includes the one or more fatty acids and the monoglyceride. It is believed that the mixture of monoglycerides and fatty acids leads to better packing at interface and hence lowering of oil-water IFT.
  • the composition preferably has 10 to 60 wt% monoglyceride and the balance being one or more fatty acids. It is preferred that the composition has 30 to 70 wt% oleic acid and 4 to 10 wt% each of stearic and palmitic acid.
  • the fatty acids can be applied to a stained portion of the fabric by any known means.
  • the monoglyceride can also be applied by any known means which may or may not be the same as that employed for application of the fatty acid(s). It is preferable, in view of convenience, that the fatty acid(s) and the monoglyceride, especially when the two are applied simultaneously, are applied through a stain removing device such as a stain removing pen.
  • the device may also be a roll-on applicator or tube, spray, aerosol or pump-operated dispenser.
  • the device may further have a scrubbing member having brush, bristles, tufts, projections, embossments or any combination thereof to further aid application of the fatty acid(s) and/or the monoglyceride.
  • the stained portion is washed in wash liquor which has a detergent composition.
  • the second step may be termed as a 'main' wash and may be manual or machine wash process.
  • Any suitable detergent composition can be used. It is preferred that this detergent composition has a first anionic surfactant which is linear alkyl benzene sulphonate and at least one more anionic surfactant which is a primary alcohol sulphate (PAS), an alkyl ester sulphonate (MES) or an alkoxylated sulphate (SLES).
  • PAS primary alcohol sulphate
  • MES alkyl ester sulphonate
  • SLES alkoxylated sulphate
  • concentration of the detergent composition in the wash liquor is from 1 to 3 g/litre.
  • the pH of the wash liquor at 25 °C is 6.5 to 10.5.
  • anionic surfactant content of the detergent composition is 5 to 60 wt%, more preferably from 10 to 50 wt%.
  • Other anionic surfactants may be chosen from the surfactants described in 'Surface Active Agents' Vol. 1 , by Schwartz and Perry, Interscience 1949, Vol. 2 by Schwartz, Perry and Berch, Interscience 1958, in the current edition of McCutcheon's Emulsifiers and Detergents published by Manufacturing Confectioners Company or in Tenside- Taschenbuch, H. Stache, 2nd Edn., Carl Hauser Verlag, 1981.
  • Preferred embodiments of the detergent composition also contain nonionic surfactants which are further discussed below.
  • fatty acid alkoxylates especially ethoxylates, having an alkyl chain of from C8-C35, preferably C8-C30, more preferably C10-C20, especially C10-C18 carbon atoms, for example, the Neodol® range from Shell (The Hague, The Netherlands); ethylene oxide/propylene oxide block polymers which may have molecular weight from 1 ,000 to 30,000, for example, Pluronic® from BASF (Ludwigshafen, Germany); and alkylphenol ethoxylates, for example Triton® X-100, available from Dow Chemical (Midland, Mich., USA).
  • More preferred nonionic surfactants are the ethoxylates with an average degree of ethoxylation of seven, alkoxylates with one propylene oxide and multiple ethylene oxide units, seed oil based surfactant, such as Ecosurf® SA7 or SA9 available from Dow Chemicals.
  • the detergent composition has 10 to 40 wt% sodium carbonate. Still more preferably the detergent composition has 20 to 50 wt% sodium sulphate.
  • Other optional Ingredients
  • the detergent composition may include one or more optional ingredients to enhance performance and properties. While it is not necessary for these elements to be present, the use of such materials is often very helpful in rendering the formulation acceptable for consumer use.
  • optional components include, but are not limited to: hydrotropes, fluorescent whitening agents, photobleaches, fibre lubricants, reducing agents, enzymes, enzyme stabilising agents (such as polyols), powder finishing agents, defoamers, bleaches, bleach catalysts, soil release agents, especially soil release polymers for cotton or polyester or both, antiredeposition agents, especially antiredeposition polymers, dye transfer inhibitors, buffers, colorants, fragrances, pro- fragrances, rheology modifiers, anti-ashing polymers, preservatives, insect repellents, soil repellents, water-resistance agents, suspending agents, aesthetic agents, structuring agents, sanitisers, solvents, including aqueous and non-aqueous solvents, fabric finishing agents, dye fixatives, wrinkle-reducing agents, fabric conditioning
  • the detergent composition may be of low to moderate bulk density. In that case it may be prepared by spray-drying slurry, and optionally post dosing (dry-mixing) further ingredients. Routes available for powder manufacture include spray drying, drum drying, fluid bed drying, and scraped film drying devices such as the wiped film evaporator. Alternatively, the main wash powder may be a concentrated or compact powder. Such powders may be prepared by mixing and granulating processes, for example, using a high-speed mixer/granulator, or other non-tower processes.
  • Glyceryl monostearate and the mixture of fatty acids were taken in a glass container and were allowed to melt by gentle heating. They were thereafter mixed thoroughly at -55 ° C to get a well-mixed composition for step 1. The composition was cooled to 25 °C and then applied onto test fabric swatches, previously stained with known quantity of sunflower oil as dummy oily stains. One ml of the mixture of table 1 was applied on stained portion of each swatch.
  • composition A Oleic 80%, stearic 10% , palmitic 10%
  • composition B Oleic 80%, stearic 5% , palmitic 5%
  • table 6 clearly shows the efficacy of pretreatment compositions against oily

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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)
  • Detergent Compositions (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
PCT/EP2015/076093 2014-11-26 2015-11-09 Method for treating fabric having oily stains WO2016083112A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN201580060351.4A CN108603143B (zh) 2014-11-26 2015-11-09 用于处理具有油污的织物的方法
EP15791615.6A EP3224335B1 (en) 2014-11-26 2015-11-09 Method for treating fabric having oily stains
BR112017010580-2A BR112017010580B1 (pt) 2014-11-26 2015-11-09 Método de tratamento de tecido contendo manchas de óleo

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP14194862 2014-11-26
EP14194862.0 2014-11-26

Publications (1)

Publication Number Publication Date
WO2016083112A1 true WO2016083112A1 (en) 2016-06-02

Family

ID=51947250

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/076093 WO2016083112A1 (en) 2014-11-26 2015-11-09 Method for treating fabric having oily stains

Country Status (4)

Country Link
EP (1) EP3224335B1 (zh)
CN (1) CN108603143B (zh)
BR (1) BR112017010580B1 (zh)
WO (1) WO2016083112A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4108753A1 (en) * 2021-06-23 2022-12-28 The Procter & Gamble Company A method of quantifying the removal of hydrocarbon component from a soiled fabric by a washing process

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2338411A1 (de) * 1973-07-28 1975-02-13 Henkel & Cie Gmbh Waschverfahren fuer textilien zur entfernung fettiger verschmutzungen
WO2010023043A1 (en) * 2008-08-25 2010-03-04 Unilever Nv Shaped solid cleaning composition

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2338411A1 (de) * 1973-07-28 1975-02-13 Henkel & Cie Gmbh Waschverfahren fuer textilien zur entfernung fettiger verschmutzungen
WO2010023043A1 (en) * 2008-08-25 2010-03-04 Unilever Nv Shaped solid cleaning composition

Also Published As

Publication number Publication date
CN108603143A (zh) 2018-09-28
BR112017010580B1 (pt) 2022-02-01
EP3224335B1 (en) 2018-10-03
CN108603143B (zh) 2020-08-07
BR112017010580A2 (pt) 2018-02-14
EP3224335A1 (en) 2017-10-04

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