EP3587546B1 - Utilisation de polyester térephtalate pour réduire les mauvaises odeurs sur des tissus - Google Patents

Utilisation de polyester térephtalate pour réduire les mauvaises odeurs sur des tissus Download PDF

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Publication number
EP3587546B1
EP3587546B1 EP18179388.6A EP18179388A EP3587546B1 EP 3587546 B1 EP3587546 B1 EP 3587546B1 EP 18179388 A EP18179388 A EP 18179388A EP 3587546 B1 EP3587546 B1 EP 3587546B1
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EP
European Patent Office
Prior art keywords
polyester terephthalate
use according
wash liquor
mixture
fabric
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Revoked
Application number
EP18179388.6A
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German (de)
English (en)
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EP3587546A1 (fr
Inventor
Karel Jozef Maria Depoot
Jef Annie Alfons Maes
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Procter and Gamble Co
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Procter and Gamble Co
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Application filed by Procter and Gamble Co filed Critical Procter and Gamble Co
Priority to EP18179388.6A priority Critical patent/EP3587546B1/fr
Priority to JP2019108471A priority patent/JP2020002350A/ja
Priority to CA3046279A priority patent/CA3046279C/fr
Publication of EP3587546A1 publication Critical patent/EP3587546A1/fr
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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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/16—Organic compounds
    • C11D3/37—Polymers
    • C11D3/3703—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C11D3/3715—Polyesters or polycarbonates
    • 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
    • C11D3/37—Polymers
    • C11D3/3788—Graft polymers

Definitions

  • Anionic polyester terephthalates are known as soil release (whiteness boosting) polymers on fabrics. However, it was surprisingly found, both under single as well as under multi-cycle testing, that anionic polyester terephthalates can also be used to reduce malodours on fabrics. Without wishing to be bound by theory, it is believed that the ethoxylate groups of the polyester terephthalate polymer are thought to create a hydrophilic layer on the fabric surface, especially on hydrophobic fabrics such as polyester, resulting in reduced (re-) adherence of hydrophobic soils on fabrics during the wash cycle or during subsequent use of the fabrics.
  • anionic polyester terephthalates are less sensitive than other polyester terephthalates to being washed off again during the same or subsequent wash operation. Without wishing to be bound by theory, it is believed the anionic polyester terephthalate has a repulsive effect on the mainly anionically charged detergent surfactant system, so reducing instances of the polyester terephthalate being washed off the fabrics.
  • a first aspect of the present invention is the use of a polyester terephthalate polymer to reduce malodour on a fabric, wherein the polyester terephthalate comprises a polyester terephthalate backbone and the polyester terephthalate backbone is grafted with one or more anionic groups.
  • FIG.1 is a water-soluble unit dose article according to the present invention.
  • An aspect of the present invention is the use of a polyester terephthalate polymer to reduce malodour on a fabric, wherein the polyester terephthalate comprises a polyester terephthalate backbone and the polyester terephthalate backbone is grafted with one or more anionic groups.
  • the polyester terephthalate is described in more detail below.
  • a 'malodour' is any odour that a user finds unpleasant or undesirable.
  • the malodour comprises body soils, cooking oils and chemical degradation products thereof, non-food oils and chemical degradation products thereof, or mixtures thereof, preferably hydrolysable fatty acid esters and chemical degradation products thereof, hydrolysable triglyceride esters and chemical degradation products thereof or a mixture thereof.
  • 'degradation products thereof we herein mean preferably aldehydes, ketones, epoxides, hydroxy compounds or a mixture thereof.
  • oils, especially vegetable oils are composed of glycerol molecules esterified by three fatty acids molecules. Each type of vegetable oils is characterized by its own specific fatty acids ratio content.
  • fatty acids Predominantly, fatty acids have 16 or 18 carbon atoms in straight aliphatic chains, and these chains can undergo degradation changes due to high levels of double bonds presented. They are quite sensitive to oxidative conditions and generate many degradation products including aldehydes, ketones, epoxides, hydroxy compounds, or mixtures thereof. Oxidative stress can also cause conjugated double bond system formation as well as of trans fatty acids.
  • the malodour may comprise body soils, cooking oils, non-food oils, or mixtures thereof, preferably hydrolysable fatty acid esters, hydrolysable triglyceride esters or a mixture thereof.
  • the fabrics comprise cotton, polycotton, polyester, or mixtures thereof, preferably the fabric comprises polyester.
  • the polyester terephthalate may be used to;
  • the wash operation may be a manual wash operation, an automatic wash operation, a semi-automatic wash operation or a mixture thereof.
  • a laundry wash operation involves making a wash liquor which is contacted with fabrics to be washed.
  • the wash liquor may be prepared first and the fabrics then added, or the wash liquor can be created in a suitable container or drum of an automatic washing machine in which the fabrics have been placed first, i.e. the wash liquor is created around the fabrics.
  • the wash liquor is at a temperature of between 5°C and 90°C, preferably between 10°C and 60°C, more preferably between 12°C and 45°C, most preferably between 15°C and 40°C.
  • washing the fabrics in the wash liquor takes between 5 minutes and 50 minutes, preferably between 5 minutes and 40 minutes, more preferably between 5 minutes and 30 minutes, even more preferably between 5 minutes and 20 minutes, most preferably between 6 minutes and 18 minutes to complete.
  • the wash liquor comprises between 1kg and 20 kg, preferably between 3kg and 15kg, most preferably between 5 and 10 kg of fabrics.
  • the wash liquor may comprise water of any hardness preferably varying between 0 gpg to 40gpg.
  • the polyester terephthalate polymer may be used to reduce malodours on fabrics during the wash operation, or on fabrics when in use following a wash operation (e.g. as they are being worn) or both.
  • the polyester terephthalate polymer may be added to the wash liquor separately to that of the fabrics, or may be present on the fabrics prior to them being contacted with the wash liquor, or both.
  • the polyester terephthalate is present in the wash liquor, preferably at a concentration between 1ppm and 200ppm, preferably between 5ppm and 150ppm, most preferably between 10ppm and 100ppm.
  • the wash liquor is prepared by diluting a laundry detergent composition in water, diluting a fabric softening composition in water, or a mixture thereof, and wherein the laundry detergent composition, the fabric softening composition, or a mixture thereof, comprises the polyester terephthalate polymer.
  • the polyester terephthalate polymer is comprised within a wash liquor and the wash liquor is in contact with the fabric.
  • the wash liquor comprises a non-soap surfactant, preferably wherein the non-soap surfactant is present at a concentration of between 10ppm and 2000ppm, preferably between 50ppm and 1500ppm, most preferably between 100ppm and 1000ppm.
  • the wash liquor is prepared by diluting a laundry detergent composition, a fabric softening composition or mixture thereof in water
  • the non-soap surfactant may be present in the laundry detergent composition, fabric softening composition or mixture thereof.
  • the non-soap surfactant comprises a non-soap anionic surfactant, a non-ionic surfactant or a mixture thereof, preferably wherein the weight ratio of the non-soap anionic surfactant to non-ionic surfactant is between is from 1:2 to 20:1, preferably from 1:1 to 15:1, more preferably from 1.5:1 to 15:1, most preferably from 3:1 to 15:1.
  • the non-ionic surfactant may be selected from a fatty alcohol alkoxylate, an oxo-synthesised fatty alcohol alkoxylate, Guerbet alcohol alkoxylates, alkyl phenol alcohol alkoxylates or a mixture thereof.
  • the non-ionic surfactant may be added to the wash liquor via the laundry detergent composition, the fabric softening composition or a mixture thereof.
  • the wash liquor comprises between 1 ppm and 1000 ppm, preferably between 5 ppm and 500 ppm, most preferably between 10 ppm and 250 ppm of soap preferably a fatty acid salt, more preferably an amine neutralized fatty acid salt, wherein preferably the amine is an alkanolamine more preferably selected from monoethanolamine, diethanolamine, triethanolamine or a mixture thereof, more preferably monoethanolamine.
  • the wash liquor comprises an adjunct ingredient selected from hueing dyes, polymers, builders, dye transfer inhibiting agents, dispersants, 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, preferably selected from fatty acid, neutralised fatty acid salt, carboxymethylcellulose, amphiphilic graft co-polymer, hydroxyethyl cellulose, modified hydroxethylcellulose, an enzyme, sulphite, or a mixture thereof.
  • the adjunct ingredient may be added to the wash liquor via the laundry detergent composition, the fabric softening composition or a mixture thereof.
  • the wash liquor may comprise a further polymer selected from the group comprising an alkoxylated polyethyleneimine, preferably an ethoxylated polyethyleneimine, a cationically modified polysaccharide, preferably a cationically modified hydroxyethylcellulose, a carboxymethylcellulose, preferably a hydrophobically modified carboxymethylcellulose, and an amphiphilic graft soil release polymer, preferably a polyethylene glycol graft polymer comprising a polyethylene glycol backbone and hydrophobic vinyl acetate side chains, or a mixture thereof.
  • a further polymer selected from the group comprising an alkoxylated polyethyleneimine, preferably an ethoxylated polyethyleneimine, a cationically modified polysaccharide, preferably a cationically modified hydroxyethylcellulose, a carboxymethylcellulose, preferably a hydrophobically modified carboxymethylcellulose, and an amphiphilic graft soil release polymer, preferably a poly
  • the wash liquor comprises a chelant, an anti-oxidant or a mixture thereof.
  • the polyester terephthalate polymer may be comprised in a laundry detergent composition.
  • the laundry detergent composition may be a powder, a liquid or a mixture thereof.
  • the solid laundry detergent composition may comprise solid particulates or may be a single homogenous solid.
  • the solid laundry detergent composition comprises particles. This means the solid laundry detergent composition comprises individual solid particles as opposed to the solid being a single homogenous solid.
  • the particles may be free-flowing or may be compacted, preferably free-flowing.
  • 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 powders, tablets or granules.
  • the liquid detergent composition preferably has a viscosity of between 100 and 1000 cPa.s, measured at a shear rate of 20/s at 20 °C on a TA instruments AR-G2 or AR2000 using a 40mm plate geometry and a 500 micron gap size.
  • the laundry detergent composition may be present in a water-soluble unit dose article and the water-soluble unit dose article comprises a water-soluble film.
  • the water-soluble unit dose article comprises a water-soluble film and a laundry detergent composition.
  • the laundry detergent composition and the water-soluble film are described in more detail below.
  • 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, and wherein the laundry detergent composition is present within said compartment.
  • 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 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 detergent composition.
  • 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.
  • 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.
  • 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.
  • FIG.1 discloses a water-soluble unit dose article (1) according to the present invention.
  • the water-soluble unit dose article (1) comprises a first water-soluble film (2) and a second water-soluble film (3) which are sealed together at a seal region (4).
  • the laundry detergent composition (5) is comprised within the water-soluble soluble unit dose article (1).
  • 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: 5 grams ⁇ 0.1 gram of film material is added in a pre-weighed 3L beaker and 2L ⁇ 5ml of distilled water is added. This is stirred vigorously on a magnetic stirrer, Labline model No. 1250 or equivalent and 5 cm magnetic stirrer, set at 600 rpm, for 30 minutes at 30°C. Then, the mixture is filtered through a folded qualitative sintered-glass filter with a pore size as defined above (max. 20 micron). The water is dried off from the collected filtrate by any conventional method, and the weight of the remaining material is determined (which is the dissolved or dispersed fraction). Then, the percentage solubility or dispersability can be calculated.
  • Preferred film materials are preferably polymeric materials.
  • the film material can, for example, be obtained by solution 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 polyester terephthalate may be present in a fabric softening composition. which is diluted by a factor of between 300 and 3000 fold in water to create the wash liquor.
  • the softening composition may be in any suitable form.
  • the softening composition may be a powder, a liquid or a mixture thereof.
  • the softening composition may comprise solid particulates or may be a single homogenous solid.
  • the solid softening composition comprises particles. This means the solid softening composition comprises individual solid particles as opposed to the solid being a single homogenous solid.
  • the particles may be free-flowing or may be compacted, preferably free-flowing.
  • the fabric softening composition may comprise a softening active selected from quaternary ammonium compounds, amines, fatty esters, sucrose esters, silicones, dispersible polyolefins, polysaccharides, fatty acids, softening oils, polymer latexes, softening clays and combinations thereof, preferably wherein the fabric softening active is selected from the group consisting of quaternary ammonium compounds and mixtures thereof, more preferably ester quats, most preferably wherein the fabric softening active is selected from the group consisting of diester quats, more preferably Diethylester Dimethyl Ammonium Chloride (DEEDMAC).
  • DEEDMAC Diethylester Dimethyl Ammonium Chloride
  • the softening composition When formulated in a fabric softening composition, preferably, the softening composition comprises between 2% and 25%, preferably between 4% and 20%, more preferably between 5% and 15%, most preferably between 5% and 13% by weight of the softening composition of the softening active.
  • the laundry softening composition preferably further comprises perfume or perfume capsule technology, aiming at delivering scent to the treated fabrics.
  • the laundry softening composition may comprise further ingredients, as typically recognized by a skilled person in the art.
  • the polyester terephthalate is a polyester terephthalate backbone grafted with one or more anionic groups, more preferably, an anionic polyester of propylene terephtalate.
  • Suitable anionic polyesters are those that are derived from terephtalic acid, 5-sulfoisophtalic acid or the salt of 5-sulfoisophtalic acid, from ethylene glycol or polyethylene glycol, propylene glycol or polypropylene glycol and polyalkyleneglycol monoalkyl ether, and optionally from further monomers having 3 to 6 functions capable of polycondensation, in particular acid, alcohol or ester functions.
  • the polyester terephthalate comprises the combination of structural units (I) to (III): (I) -[(OCHR 1 -CHR 2 ) a -O-OC-Ar-CO-] d (II) -[(OCHR 3 -CHR 4 ) b -O-OC-sAr-CO-] e (III) -[(OCHR 5 -CHR 6 ) c -OR 7 ] f wherein:
  • the polyester terephthalate comprises the structural units (I) to (III) wherein;
  • the polyester terephthalates according to the invention generally have a number average molecular weight in the range of 700 to 50000 g/mol, preferably 800 to 25000 g/mol, more preferably 1000 to 15000 g/mol, most preferably 1200 to 12000 g/mol.
  • the laundry detergent preferably comprises between 0.1% and 10% preferably between 0.5 and 5% by weight of the detergent composition of the anionic polyester terephthalate soil release polymer.
  • the anionic polyester terephthalate is present in the wash liquor, preferably at a concentration between 1ppm and 200ppm, preferably between 5ppm and 150ppm, more preferably between 10ppm and 100ppm.
  • compositions were prepared by mixing of the individual components, followed by enclosing in a water soluble PVA film, supplied by the Monosol company, to obtain water soluble unit dose laundry pouches.
  • Each unit dose laundry pouch comprised 29.932g of the detergent compositions.
  • Texcare SRA300 was added separately to the wash as a 20% active aqueous solution.
  • malodor cocktail compositions were prepared by mixing of the individual components (supplied by Sigma Aldrich, purity grade >95% - Artificial Body Soil by Accurate Product Development).
  • the malodor cocktail is stored at a temperature below 0°C. Malodor cocktails are re-equilibrated at room temperature prior to application on test swatches.
  • 2x5 inch de-sized polycotton (50/50) test swatches are pre-conditioned with test product prior to soiling.
  • a single unit dose of the test product is placed first towards the back of the drum of a Duet 9200 front-loading washing machine, followed by addition of half of the ballast load size (1.95kg), the test swatches (16 pieces) and the remaining half of the ballast load size (1.95kg).
  • a normal cycle is run at 77°F washing temperature, 60°F rinsing temperature and 7 gpg water hardness.
  • This pre-conditioning step is repeated 4 times, followed by drying the test swatches together with 4 clean, dry hand towels for 20 minutes in a Maytag Double Stack dryer.
  • Malodor sensors are freshly prepared by applying the malodor cocktail to the pre-conditioned test swatches, using an Integra Viaflo Automatic Pipette attached with a 96-channel head (8x12) and 300 ⁇ l pipette tips. 3 rows of 12 tips are filled with product, each tip providing 15 ⁇ l of malodor cocktail on the pre-conditioned test swatches). 16 soiled swatches, i.e. the malodor sensors, are placed together and wrapped up in an Aluminium foil straight after completion of the malodor cocktail addition. These malodor sensors are stored at room temperature under a fume hood for use on the same day in a washing test.
  • a single unit dose of the test product is placed first towards the back of the drum of a Duet 9200 front-loading washing machine, followed by addition of half of the ballast load size (1.95kg), the malodor soiled test swatches (16 pieces) and the remaining half of the ballast load size (1.95kg).
  • a normal cycle is run at 77°F washing temperature, 60°F rinsing temperature and 7 gpg water hardness, followed by drying the malodor soiled test swatches together with 4 clean, dry hand towels for 20 minutes in a Maytag Double Stack dryer.
  • One of the test designs recommended by ASTM (E1958) for finding differences in measurable attributes is using a trained sensory expert panel, also called descriptive analysis panel.
  • the malodor sensor swatches are assessed by 9 trained external (i.e. non-employees) sensory expert panelists, who grade on malodor intensity and were trained on how to grade the prepared fabrics for dry fabric malodor intensity using their typical 0 (no malodor left) -100 (strong malodor left) scale.
  • the malodor assessment is conducted 2-fold, i.e. before and after rubbing the malodor sensor swatches. All samples were labeled with a blinded 3-digit code, and presentation order was randomized.
  • test swatches are folded in 2 and opposite ends of the half-folded swatches are stretched with 2 hands.
  • the left and right side of the test swatch are consequently sniffed, prior to flipping over the top end of the test swatch to assess the opposite side of the test swatch by sniffing again the left and right side.
  • a remaining malodor intensity grade on a zero (no malodor left) to 100 (strong malodor left) scale is consequently provided.
  • All 40 test swatches are assessed first for pre-rub, prior to move to post-rub assessment. A break of 2 minutes is provided in-between different test swatch evaluations. The average pre-rub malodor intensity grade of the 40 test swatches and the 9 panelists is calculated and recorded.
  • test swatches are folded in 2 and opposite ends of the half-folded swatches are stretched with 2 hands.
  • the 2 hands are consequently brought together and with pressure rubbed together up and down 5 times, at a trained and calibrated pressure of 1.2 to 2.4 psi.
  • the rubbed area of the test swatch is consequently sniffed and a remaining malodor intensity grade on a zero (no malodor left) to 100 (strong malodor left) scale is again provided.
  • All 40 test swatches are assessed for post-rub. A break of 2 minutes is provided in-between different test swatch evaluations. The average post-rub malodor intensity grade of the 40 test swatches and the 9 panelists is calculated and recorded.
  • Test swatches were cut in 2x2.5 inch pieces and placed in a 10 ml headspace crimp vial, and allowed to equilibrate for 12 hours prior to running the analytical measurement. Test results were compared versus malodor standards to quantify amount of remaining malodor. Malodor standards for analysis were prepared by pipetting 1.18 mL of the malodor standard at room temperature into 10 mL deactivated headspace vials and equilibrated in an oven @ 80 C for 90 minutes and allowed to sit overnight before analysis.
  • Gerstel auto sampler parameters :

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Claims (15)

  1. Utilisation d'un polymère téréphtalate de polyester pour réduire une mauvaise odeur sur un tissu, dans laquelle le téréphtalate de polyester comprend un squelette téréphtalate de polyester et le squelette téréphtalate de polyester est greffé avec un ou plusieurs groupes anioniques.
  2. Utilisation selon la revendication 1 dans laquelle le téréphtalate de polyester est utilisé pour ;
    a. réduire une mauvaise odeur sur des tissus pendant une opération de lavage de linge, dans laquelle le polymère téréphtalate de polyester est compris au sein d'une lessive et la lessive est en contact avec le tissu ;
    b. réduire une mauvaise odeur sur des tissus pendant l'utilisation desdits tissus à la suite d'une opération de lavage, dans laquelle dans l'opération de lavage le polymère téréphtalate de polyester est compris au sein d'une lessive et la lessive est en contact avec le tissu et à la suite du contact le polymère téréphtalate de polyester est déposé sur les tissus ;
    c. réduire une mauvaise odeur sur des tissus pendant une opération de lavage de linge, dans laquelle le polymère téréphtalate de polyester est compris sur le tissu avant que le tissu soit mis en contact avec une lessive ;
    d. ou un mélange de ceux-ci.
  3. Utilisation selon la revendication 2 dans laquelle le téréphtalate de polyester est présent dans la lessive, de préférence à une concentration entre 1 ppm et 200 ppm, de préférence entre 5 ppm et 150 ppm, plus préférablement entre 10 ppm et 100 ppm.
  4. Utilisation selon la revendication 3, dans laquelle la lessive est préparée en diluant une composition détergente pour le lavage du linge dans de l'eau, en diluant une composition d'adoucissement des tissus dans de l'eau, ou un mélange de ceux-ci, et dans laquelle la composition détergente pour le lavage du linge, la composition d'adoucissement des tissus, ou un mélange de celles-ci, comprend le polymère téréphtalate de polyester.
  5. Utilisation selon la revendication 4, dans laquelle le polymère téréphtalate de polyester est compris dans une composition détergente pour le lavage du linge, et la composition détergente pour le lavage du linge est comprise au sein d'un article en dose unitaire hydrosoluble dans laquelle l'article en dose unitaire hydrosoluble comprend un film hydrosoluble.
  6. Utilisation selon de quelconques revendications précédentes dans laquelle le polymère téréphtalate de polyester comprend une combinaison des motifs structuraux (I) à (III) :

            (I)     -[(OCHR1-CHR2)a-O-OC-Ar-CO-]d

            (II)     -[(OCHR3-CHR4)b-O-OC-sAr-CO-]e

            (III)     -[(OCHR5-CHR6)c-OR7]f

    dans laquelle :
    a, b et c vont de 1 à 200 ;
    d, e et f vont de 1 à 50 ;
    Ar est un phénylène à substitution 1,4 ;
    sAr est un phénylène à substitution 1,3 substitué en position 5 par SO3Me;
    Me est Li, K, Mg/2, Ca/2, Al/3, ammonium, mono-, di-, tri-, ou tétra-alkylammonium dans laquelle les groupes alkyle sont un alkyle en (C1 à C22) ou un hydroxyalkyle en (C2 à C10), ou leurs mélanges ;
    R1, R2, R3, R4, R5 et R6 sont indépendamment choisis parmi H ou un n- ou iso-alkyle en (C1 à C18), de préférence méthyle ; et R7 est un alkyle linéaire ou ramifié en (C1 à C18), ou un alcényle linéaire ou ramifié en (C2 à C30), ou un groupe cycloalkyle avec 5 à 9 atomes de carbone, un groupe aryle en (C6 à C30) ou un groupe arylalkyle en (C6 à C50) de préférence phényle ou benzyle.
  7. Utilisation selon la revendication 6, dans laquelle :
    R1 à R6 sont indépendamment H ou méthyle,
    R7 est méthyle,
    a, b et c sont un nombre de 1 à 20, de préférence a et b sont 1 et c est un nombre de 2 à 10,
    d est un nombre entre 1 et 25, de préférence entre 1 et 10, plus préférablement entre 1 et 5,
    e est un nombre entre 1 et 30, de préférence entre 2 et 15, plus préférablement entre 3 et 10, et
    f est un nombre entre 0,05 et 15, de préférence entre 0,1 et 10, plus préférablement entre 0,25 et 3.
  8. Utilisation selon de quelconques revendications précédentes, dans laquelle la mauvaise odeur comprend des salissures corporelles, des huiles de cuisson et des produits de dégradation chimique de celles-ci, des huiles non alimentaires et des produits de dégradation chimique de celles-ci, ou leurs mélanges, de préférence des esters d'acide gras hydrolysables et des produits de dégradation chimique de ceux-ci, des esters de triglycéride hydrolysables et des produits de dégradation chimique de ceux-ci ou un mélange de ceux-ci.
  9. Utilisation selon l'une quelconque des revendications 2 à 8, dans laquelle la lessive comprend un agent tensioactif non-savon, de préférence dans laquelle l'agent tensioactif non-savon est présent à une concentration entre 10 ppm et 2000 ppm, de préférence entre 50 ppm et 1500 ppm, le plus préférablement entre 100 ppm et 1000 ppm.
  10. Utilisation selon la revendication 9, dans laquelle l'agent tensioactif non-savon comprend un agent tensioactif anionique non-savon, un agent tensioactif non ionique ou un mélange de ceux-ci, de préférence dans laquelle le rapport pondéral de l'agent tensioactif anionique non-savon à l'agent tensioactif non ionique va de 1:2 à 20:1, de préférence de 1:1 à 15:1, plus préférablement de 1,5:1 à 15:1, le plus préférablement de 3:1 à 15:1.
  11. Utilisation selon les revendications 9 ou 10, dans laquelle l'agent tensioactif anionique non-savon comprend un sulfonate d'alkylbenzène linéaire, un sulfate d'alkyle, un sulfate d'alkyle alcoxylé ou un mélange de ceux-ci, de préférence dans laquelle le rapport pondéral du sulfonate d'alkylbenzène linéaire au sulfate d'alkyle alcoxylé est compris entre 15:1 et 1:15, de préférence 10:1 et 1:10, plus préférablement 5:1 et 1:5, encore plus préférablement 4:1 et 1:4.
  12. Utilisation selon l'une quelconque des revendications 2 à 11, dans laquelle la lessive comprend un ingrédient additif choisi parmi des teintures teintantes, des polymères, des adjuvants, des agents inhibant la décoloration, des dispersants, des agents stabilisant les enzymes, des matériaux catalytiques, un agent de blanchiment, des activateurs de blanchiment, des agents de dispersion polymères, des agents antiredéposition, des suppresseurs de mousse, des teintures esthétiques, des opacifiants, des parfums, des systèmes de libération de parfum, des structurants, des hydrotropes, des auxiliaires de traitement, des pigments, des agents tensioactifs amphotères, des diamines cycliques, des polyamines zwittérioniques, des antioxydants, des conservateurs et leurs mélanges, choisi de préférence parmi un acide gras, un sel d'acide gras neutralisé, de la carboxyméthylcellulose, un copolymère greffé amphiphile, de l'hydroxyéthylcellulose, de l'hydroxyéthylcellulose modifiée, une enzyme, un sulfite, ou un mélange de ceux-ci.
  13. Utilisation selon la revendication 12, dans laquelle l'enzyme est choisi parmi protéase, amylase, lipase, cellulase, mannanase, pectate lyase, xyloglucanase, kératinase ou un mélange de celles-ci.
  14. Utilisation selon de quelconques revendications précédentes dans laquelle le tissu est choisi parmi coton, polycoton, polyester, ou leurs mélanges, de préférence dans laquelle le tissu comprend du polyester.
  15. Utilisation selon les revendications 2 à 14 dans laquelle la lessive comprend un agent chélatant, un antioxydant ou un mélange de ceux-ci.
EP18179388.6A 2018-06-22 2018-06-22 Utilisation de polyester térephtalate pour réduire les mauvaises odeurs sur des tissus Revoked EP3587546B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP18179388.6A EP3587546B1 (fr) 2018-06-22 2018-06-22 Utilisation de polyester térephtalate pour réduire les mauvaises odeurs sur des tissus
JP2019108471A JP2020002350A (ja) 2018-06-22 2019-06-11 布地の悪臭を低減するためのポリエステルテレフタレートの使用
CA3046279A CA3046279C (fr) 2018-06-22 2019-06-13 Utilisation du polyethylene terephtalate pour reduire la mauvaise odeur des tissus

Applications Claiming Priority (1)

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EP18179388.6A EP3587546B1 (fr) 2018-06-22 2018-06-22 Utilisation de polyester térephtalate pour réduire les mauvaises odeurs sur des tissus

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EP3587546B1 true EP3587546B1 (fr) 2021-04-07

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Publication number Priority date Publication date Assignee Title
US11802259B2 (en) * 2019-11-08 2023-10-31 The Procter & Gamble Company Process of reducing malodors on fabrics

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012221199A1 (de) 2012-11-20 2014-05-22 Henkel Ag & Co. Kgaa Anti-adhäsive Polymere zur mikrobiell-repulsiven Textilausrüstung
WO2016048969A1 (fr) 2014-09-25 2016-03-31 The Procter & Gamble Company Compositions détergentes contenant une polyétheramine et un polymère anionique détachant les salissures
WO2016196706A1 (fr) 2015-06-05 2016-12-08 The Procter & Gamble Company Composition détergente liquide, compactée, pour lessive

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Publication number Priority date Publication date Assignee Title
GB2344827A (en) * 1999-08-17 2000-06-21 Mcbride Robert Ltd Deodorising cleaner
RU2384607C1 (ru) * 2005-11-17 2010-03-20 Колгейт-Палмолив Компани Композиции и способы для ослабления неприятного запаха
MY165144A (en) * 2011-04-18 2018-02-28 Lion Corp Liquid detergent
JP6521507B2 (ja) * 2014-12-29 2019-05-29 ライオン株式会社 繊維製品用の液体洗浄剤

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012221199A1 (de) 2012-11-20 2014-05-22 Henkel Ag & Co. Kgaa Anti-adhäsive Polymere zur mikrobiell-repulsiven Textilausrüstung
WO2016048969A1 (fr) 2014-09-25 2016-03-31 The Procter & Gamble Company Compositions détergentes contenant une polyétheramine et un polymère anionique détachant les salissures
WO2016196706A1 (fr) 2015-06-05 2016-12-08 The Procter & Gamble Company Composition détergente liquide, compactée, pour lessive

Non-Patent Citations (1)

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Title
S. KAY OBENDORF: "Microscopy to Define Soil Fabric and Detergent Formulation Characteristics that Affect Detergency: A Review", AATCC REVIEW, January 2004 (2004-01-01), pages 17 - 23, XP055859015

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JP2020002350A (ja) 2020-01-09
CA3046279A1 (fr) 2019-12-22
EP3587546A1 (fr) 2020-01-01
CA3046279C (fr) 2022-03-22

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