EP1992681A1 - Méthode pour poser du parfum à un substrat contenant du parfum - Google Patents

Méthode pour poser du parfum à un substrat contenant du parfum Download PDF

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Publication number
EP1992681A1
EP1992681A1 EP07009982A EP07009982A EP1992681A1 EP 1992681 A1 EP1992681 A1 EP 1992681A1 EP 07009982 A EP07009982 A EP 07009982A EP 07009982 A EP07009982 A EP 07009982A EP 1992681 A1 EP1992681 A1 EP 1992681A1
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EP
European Patent Office
Prior art keywords
fragrance
laundry
fructan
formula
hydrophobically modified
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.)
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Application number
EP07009982A
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German (de)
English (en)
Inventor
Bart Levecke
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Raffinerie Notre Dame - Orafti SA
Original Assignee
Raffinerie Notre Dame - Orafti SA
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Filing date
Publication date
Application filed by Raffinerie Notre Dame - Orafti SA filed Critical Raffinerie Notre Dame - Orafti SA
Priority to EP07009982A priority Critical patent/EP1992681A1/fr
Priority to EP20080758550 priority patent/EP2155850B1/fr
Priority to US12/596,798 priority patent/US8496994B2/en
Priority to PCT/EP2008/003913 priority patent/WO2008141765A1/fr
Priority to ES08758550.1T priority patent/ES2481451T3/es
Publication of EP1992681A1 publication Critical patent/EP1992681A1/fr
Withdrawn legal-status Critical Current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
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/50—Perfumes
    • 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
    • C11D1/662—Carbohydrates or derivatives
    • 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
    • C11D3/22—Carbohydrates or derivatives thereof
    • C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
    • 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
    • C11D3/22—Carbohydrates or derivatives thereof
    • C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
    • C11D3/225—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin etherified, e.g. CMC
    • 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
    • C11D3/22—Carbohydrates or derivatives thereof
    • C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
    • C11D3/226—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin esterified
    • 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
    • C11D3/22—Carbohydrates or derivatives thereof
    • C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
    • C11D3/227—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin with nitrogen-containing groups
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
    • D06M13/005—Compositions containing perfumes; Compositions containing deodorants
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
    • D06M15/03—Polysaccharides or derivatives thereof
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
    • D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
    • D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
    • D06M15/03—Polysaccharides or derivatives thereof
    • D06M15/11—Starch or derivatives thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper

Definitions

  • the invention relates to a method for providing fragrance to a substrate, and to fragrance-containing substrates.
  • Textile fabric is referred to herein in short as textile.
  • Textile fabric is commonly treated with a perfume or fragrance.
  • washed and dried textile was previously stored in the presence of an odorous soap, such as soap of Marseille, or in the presence of dried, odorous herbs and/or flowers, such as lavender.
  • fragrances including extracts of herbs and flowers, and semisynthetic and synthetic fragrances, have been put into use to impart to laundry a scent of freshness or of a desired perfume through a washing cycle.
  • fragrance is meant to embrace also the meaning of the term perfume; moreover, depending on context and as is customary, the term fragrance is used for both a fragrance compound itself as well as for a fragrance effect.
  • the fragrance is added through the detergent composition during the washing cycle, typically in a concentration ranging from 0.05 % to 3 % (% w/w on total composition).
  • a large part of the added fragrance is lost via the wash waters, which largely reduces the efficiency of the amount of the added fragrance.
  • the fragrance is added via a laundry softener composition, typically in a concentration ranging from 0.05 % to 3 % (% w/w on total composition), at the end of the washing cycle, before the drying step.
  • EP 1614743 A1 A method of providing an improved transfer of fragrance from laundry compositions to laundry during a washing cycle is disclosed in EP 1614743 A1 .
  • a fragrance incorporated into a film or sheet composed of water-soluble cellulose derivatives and/or polysaccharides is added at the soaking stage prior to commencing the washing.
  • the film or sheet may be added directly to the laundry in a washing machine in the detergent drawer to replace the fabric softener.
  • the film is used alone or can be associated with detergent tablets or powder, as a two-in-one product.
  • the polymer film or sheet can contain more fragrance than is usually present in a normal laundry detergent charge, and the method is disclosed to provide enhanced olfactory performances over a certain period of time, namely providing a persisting high level of fragrance for more than 5 days.
  • this known method suffers from disadvantages, including the fact that the films or sheets containing the fragrance have to be prepared separately and added as a separate composition to the washing cycle, associated or not with the detergent composition, which may render dosing of the amount of fragrance to be added to a washing cycle, difficult.
  • EP 1614743 A1 is silent about the long-lasting olfactory effect imparted by the method after more than 5 days.
  • An advantage of the method of the invention, when applied to the washing cycle of textile, is that an efficient and improved transfer of the fragrance from the laundry composition to the laundry compared to prior art methods can be achieved, as well as an improved fragrance fixation.
  • fragrance is provided to a substrate.
  • the term fragrance embraces the term perfume, as well as their olfactory effects.
  • the substrate to which the fragrance is provided may be any substrate of which it is, or may be desirable to provide a fragrance to.
  • the substrate has a fibrous or porous structure. Suitable substrates include all types of textile, all types of paper, wood, and plastic.
  • the substrate is in a step a) treated with a fragrance-containing composition.
  • the treatment of step a) is as such a known step and may be executed in a variety of ways. Examples of treatments according to step a) are the spraying of a liquid fragrance-containing composition onto the substrate, or the introduction of a fragrance-containing composition into a washing cycle.
  • the method of the invention further comprises a step b).
  • Step b) which may be executed prior to, simultaneously with, and/or subsequent to the execution of step a), also pertains to the treatment of the substrate; this treatment involves the bringing into contact of a fixative compound or mixture of fixative compounds with the substrate.
  • fixative compound means a compound that enhances the transport and/or the adhesion of a fragrance to the substrate.
  • the fixative compound or mixture of fixative compounds is/are selected from the group consisting of a fructan, a starch hydrolysate having a dextrose equivalent ranging from 1 to 50, a hydrophobically modified fructan, and a hydrophobically modified starch hydrolysate.
  • fructan as used herein has its common meaning of being a generic term that relates to a polydisperse carbohydrate material consisting mainly of fructosyl-type monomeric units connected via fructosyl-fructose links with optionally a glucose starting moiety.
  • the meaning of fructan encompasses the more specific compounds inulin - wherein the fructosyl-fructose links are mainly of the ⁇ (2 ⁇ 1) type - and levan - wherein the fructosyl-fructose links are mainly of the ⁇ (2 ⁇ 6) type. Both inulins and levans can be linear or branched.
  • inulin on its part encompasses the compounds known as oligofructoses; typical of oligofructose is that the degree of polymerisation (DP) ranges from 2 to 10.
  • DP degree of polymerisation
  • the fructan is inulin having a DP ranging from 2 to 100.
  • Starch hydrolysates are known in the art. They are a polydisperse mixture of linear and/or branched polymers composed of glucosyl-type monomeric units, and are prepared by conventional processes, for example by acidic or enzymatic partial hydrolysis from various starch sources, for example corn, potato, tapioca, rice, sorghum and wheat, and are commercially available in various grades. Starch hydrolysates are composed of polyglucose molecules which, due to a terminal glucosyl unit, present reducing power which is expressed, on dry product basis, in dextrose equivalent (D.E.), D-glucose having per definition a D.E. of 100. The D.E.
  • Starch hydrolysates are usually defined by their D.E. value. Starch hydrolysates with a very high D.E. are typically named glucose syrup, whereas starch hydrolysates with a low D.E. are usually named maltodextrin. Starch hydrolysates with intermediate D.E. values - e.g. ranging from 20 to 60 - are sometimes named maltodextrin and sometimes glucose syrup, depending on the source.
  • Starch hydrolysates that are suitable as the polysaccharide in accordance with the present invention, including commercial grade products, have a D.E. ranging from 1 to 47 or even 50, preferably from 1 to 30. They are available for many sources, for example as Glucidex® products (trade name from Roquette Fromme, France).
  • hydrophobically modified fructan and hydrophobically modified starch hydrolysate as used herein have the meaning of being a derivative of a fructan or starch hydrolysate in which a portion of the hydrogen atoms of -OH groups of the fructosyl or glucosyl units has been substituted by a hydrophobic group. Such substitutions are as such known in the art.
  • the hydrophobically modified fructan and/or the hydrophobically modified starch hydrolysate are according to formula (I) SAC(-M) s (I) wherein
  • Fructan derivatives in particular inulin derivatives, as well as starch hydrolysate derivatives of formula (I) wherein (-M) represents an alkylcarbamoyl radical of formula R 1 -NH-CO-, or an alkenylcarbamoyl radical of formula R 2 -NH-CO-, wherein R 1 and R 2 represent a linear or branched alkyl group, respectively alkenyl group, with 4 to 22 carbon atoms, are known in the art and for example disclosed in WO 99/064549 and WO 01/44303 .
  • a typically suitable inulin derivative of formula (I) is for example inulin laurylcarbamate, which is commercially available as INUTEC®SP1 (trade name) from Orafti, Belgium, and which is based on inulin having an average degree of polymerisation ( DP ) ranging from 23 to 27.
  • a typically suitable starch hydrolysate derivative of formula (I) is for example a carbamate derived from a starch hydrolysate having a D.E. value from 2 to 19 wherein the R 1 alkyl group of the alkylcarbamoyl radical or the R 2 alkenyl group of the alkenylcarbamoyl radical is a linear group containing from 8 to 18 carbon atoms.
  • Fructan derivatives in particular inulin derivatives, and starch hydrolysate derivatives of formula (I) wherein (-M) represents an alkylcarbonyl radical of formula R 1 -CO- or an alkenylcarbonyl radical of formula R 2 -CO-, wherein R 1 and R 2 represent a linear or branched alkyl, respectively alkenyl group with 4 to 22 carbon atoms, are known in the art and can be prepared by conventional esterification reactions, for example by reaction of inulin, respectively a starch hydrolysate, with an anhydride of formula R 4 -CO-O-CO-R 4 or R 4 -CO-0-CO-CH 3 , or an acid chloride of formula R 4 -CO-Cl (wherein R 4 represents respectively a radical R 1 or R 2 having the meanings given above).
  • esterification reactions and said inulin derivatives and starch hydrolysate derivatives are for example disclosed in EP 0792888 , EP 0703243 , GB 601374
  • Inulin derivatives and starch hydrolysate derivatives of formula (I) wherein (-M) represents an alkyl radical of formula R 1 or an alkenyl radical of formula R 2 , R 1 and R 2 being defined above, are known in the art. They can be prepared by conventional etherification or alkylation reactions, for example by reaction, in the presence of a base, of inulin, respectively a starch hydrolysate, with an alkyl halide of formula R 1 -X, or an alkenyl halide of formula R 2 -X, or an alkyl sulphate of formula R 1 -O-SO 2 -O-R 1 , or an alkenyl sulphate of formula R 2 -O-SO 2 -O-R 2 , wherein R 1 and R 2 have the meanings defined above and X represents a chloride, bromide or iodide anion, or an other leaving group.
  • Inulin derivatives and starch hydrolysate derivatives of formula (I) wherein (-M) represents a hydroxyalkyl radical, preferably a 2-hydroxyalkyl radical, of formula R 3 (R 3 being defined above), are also known in the art and can be prepared conventionally, for example by reaction of inulin, respectively a starch hydrolysate, in the presence of an alkaline catalyst, with a linear or branched epoxyalkane, preferably a 1,2-epoxyalkane containing from 4 to 22 carbon atoms, as for example disclosed in EP 0638589 , GB 601374 and US 4585858 .
  • the saccharide moieties of the inulin and starch hydrolysate derivatives according to formula (I), can be substituted by one or more alkylcarbamoyl moieties of formula R 1 -NH-CO-, alkenylcarbamoyl moieties of formula R 2 -NH-CO-, alkylcarbonyl moieties of formula R 1 -CO-, alkenylcarbonyl moieties of formula R 2 -CO-, alkyl moieties of formula R 1 -, alkenyl moieties of formula R 2 -, or hydroxyalkyl moieties of formula R 3 , (R 1 , R 2 and R 3 being defined above), in which all R 1 groups, respectively all R 2 and all R 3 groups, can be the same or different, or by any combination thereof.
  • the value of s (average DS) of the derivatives of formula (I) can range from 0.01 to 1.0, and preferably ranges from 0.02 to 0.5, more preferably from 0.05 to 0.5, most preferably from 0.05 to 0.3.
  • Table 1 Typical examples of hydrophobically modified saccharides of formula (I) that are suitable in accordance with the present invention are listed in Table 1 below.
  • Table 1 Hydrophobically modified saccharides of formula (I) Nr Type (1) (-M) (2) R (3) s (4) 1 a R-NH-CO CH 3 (CH 2 ) 7 - 0.02 2 a R-NH-CO CH 3 (CH 2 ) 7 - 0.08 3 a R-NH-CO CH 3 (CH 2 ) 7 - 0.09 4 a R-NH-CO CH 3 (CH 2 ) 7 - 0.2 5 a R-NH-CO CH 3 (CH 2 ) 11 - 0.07 6 a R-NH-CO CH 3 (CH 2 ) 11 - 0.09 7 a R-NH-CO CH 3 (CH 2 ) 11 - 0.1 8 a R-NH-CO CH 3 (CH 2 ) 11 - 0.1 9 a R-NH-CO CH 3 (CH 2 ) 11 - 0.1 10 a R-NH-
  • SAC in formula (I) represents an inulin moiety derived from chicory inulin with an average degree of polymerisation ( DP ) ranging from 20 to 30.
  • fructan and to a starch hydrolysate they are referred to as particular polysaccharide; similarly, if it is meant herein to refer to both a hydrophobically modified fructan and a hydrophobically modified starch hydrolysate, they are referred to as particular hydrophobically modified polysaccharide.
  • step b) is carried out by treating the substrate with a mixture of compounds, in particular with a mixture of a fructan, preferably inulin, and a hydrophobically modified fructan, preferably hydrophobically modified inulin.
  • the weight ratio between the fructan and the hydrophobically modified fructan may vary between wide ratios; the said ratio is preferably at least 1:100, 2:100, 5:100, 10:100, 20:100, 30:100, 50:100, or 100:100.
  • the said ratio is preferably at most 100:1, 100:2, 100:5, 100:10, 100:20, 100:30, or 100:50.
  • the substrate is treated in step b) with a mixture of fixative compounds whereby the mixture contains a particular polysaccharide and a particular hydrophobically modified polysaccharide, that the olfactory effects are not only stronger but also longer-lasting, as compared to known methods for providing fragrance to a substrate and even as compared to methods according to the invention wherein not a mixture of fixative compounds is used.
  • the mixture of fixative compounds is a mixture of inulin and a hydrophobically modified inulin; an alternatively preferred mixture is that of a starch hydrolysate and a hydrophobically modified starch hydrolysate.
  • steps a) and b) are carried out within the framework of the washing of textile.
  • Textile that is (to be) subjected to a washing cycle is herein referred to by its common name laundry.
  • textile fabrics By laundry is thus meant herein textile fabrics (to be) washed, namely woven as well as non-woven textile made from natural fibres of plant origin, such as cellulose fibres, including cotton, flax and sisal, and of animal origin, including wool and silk, artificial fibres such as cellulose-derived fibres, for example viscose, rayon and cellulose-acetate, and synthetic fibres, for example polyamides, polyesters, polyacrylic fibres, polyethylene and polypropylene fibres, and any mixtures thereof.
  • natural fibres of plant origin such as cellulose fibres, including cotton, flax and sisal, and of animal origin, including wool and silk
  • artificial fibres such as cellulose-derived fibres, for example viscose, rayon and cellulose-acetate
  • synthetic fibres for example polyamides, polyesters, polyacrylic fibres, polyethylene and polypropylene fibres, and any mixtures thereof.
  • fragrances and perfumes are meant herein pure olfactory compounds as well as mixtures of such compounds and finished blends of same that provide to laundry a desirable scent.
  • Said compounds, mixtures and finished blends are all suitable for the present invention.
  • Typical examples include coumarin, geraniol, linalool, citronellol, and compositions with a scent of lily of the valley, jasmine, lilac, cedar- and sandal wood, amber, fruits and/or musk.
  • washing cycle is meant herein a cycle embracing all common steps used for washing laundry, carried out by hand and/or by a machine, typically including (i) a treatment of the laundry with a laundry detergent composition with possibly a soaking step, and rinsing, yielding the so-called wash-waters, (ii) possibly a subsequent treatment with a laundry softener composition and rinsing, yielding the so-called rinsing waters, and (iii) a drying step of the washed and rinsed laundry, either or not including wringing or centrifugation, typically carried out by means of a drier and/or by drying on the air.
  • the laundry is not subjected to a treatment with a laundry detergent composition, but is only subjected to a treatment with a laundry softener composition, followed by a drying step.
  • a treatment with a laundry detergent composition for example applied in case the laundry is not dirty and one only wants to refresh the textile fabric and/or give it a fresh fragrance.
  • Such method variant is also included herein in the term washing cycle.
  • the fragrance-containing composition is a laundry detergent composition and/or a laundry softener composition.
  • laundry detergent compositions and laundry softener compositions contain from 0.001 wt.% to 3 wt% of fragrance.
  • the fixative compound or mixture of fixative compounds is included in the laundry detergent composition and/or in the laundry softener composition in a total amount ranging from 0.005 to 5 wt.% - based on the total combined weight of laundry detergent composition and laundry softener composition.
  • the fixative compound or mixture of fixative compounds is/are during the washing cycle not provided in the form of a fragrance-containing film or sheet.
  • the invention also relates to a laundry composition containing a fragrance, whereby the laundry composition is present in the form of a laundry detergent composition or a laundry softener composition or a kit of parts containing a laundry detergent composition and a laundry softener composition, whereby the laundry composition comprises a fixative compound or mixture of fixative compounds selected from the group consisting of a fructan, a starch hydrolysate preferably having a D.E. ranging from 1 to 50, a hydrophobically modified fructan, and a hydrophobically modified starch hydrolysate.
  • the invention is not carried out within the framework of the washing of textile, but is simply meant to impart fragrance to a substrate in a more long-lasting fashion.
  • One way of implementing this is by utilising a fragrance-containing composition in liquid form, whereby the liquid fragrance-containing composition is then sprayed onto the substrate.
  • the substrate can still be textile but can also be any other type of substrate that can accept a fragrance, such as wood or paper-based substrates like for example letters, tissues or moist tissues.
  • the fixative compound or mixture of fixative compounds is likewise brought into contact with the substrate in step b).
  • One way of implementing this is by means of adding the fixative compound or mixture of fixative compounds to a liquid fragrance-containing composition.
  • the invention thus also relates to a paper product, containing a fragrance and a fixative compound or mixture of fixative compounds selected from the group consisting of a fructan, a starch hydrolysate preferably having a D.E. ranging from 1 to 50, a hydrophobically modified fructan, and a hydrophobically modified starch hydrolysate.
  • Figure 1 presents a measure of the amount of fragrance adsorbed by laundry samples in different washing cycles and the evolution of said amount as a function of time for the samples stored on the air;
  • Figure 2 represents the evolution as a function of time of the amount of fragrance adsorbed in different washing cycles on laundry samples when stored on the air, expressed as per cent (%) of the amount at 0 days (To, i.e. the end of the washing cycle).
  • Grey bath tissue composed of 100 % cotton, was washed in a standardised manner with a laundry detergent composition without perfume (OMO® Sensitive of Unilever, NL/UK) without the use of a softener composition, in a conventional washing machine at 60°C and dried for 50 minutes in a conventional drier. The procedure was carried out twice in order to remove the finishes from the bath tissue. Strips were then cut from the tissue (1 cm x 8 cm), hemmed to avoid disintegration during the washing cycles, put together in a net-bag, and the above washing cycle was repeated once more. The obtained tissue strips were stored in an air-tight container and named hereinafter test samples.
  • Test samples of the laundry have been subjected to the method according to the present invention, namely subjected to a washing cycle with a fragrance-containing laundry composition which furthermore comprises a particular polysaccharide or a particular hydrophobically modified polysaccharide or any combination of both, as defined above.
  • the treatment of the laundry has been carried out in a conventional washing machine at 60°C and the laundry was dried for 50 minutes in a conventional drier. Details of variants of this general procedure are indicated in the specific examples described below.
  • the test samples treated by a method according to the present invention have been compared with test samples treated by a prior art method.
  • the treated test samples obtained were stored in an air-tight vial and analysed.
  • test samples were exposed to the air at room temperature under standardised conditions for a certain period of time and analysed in order to determine the evolution of the amount of adsorbed fragrance as a function of time.
  • the amount of fragrance adsorbed on a test sample treated during a washing cycle by a method according to the present invention or by a method according to the prior art has been measured via the determination of the amount of fragrance desorbed by the treated test sample under standardised conditions. The determination was made by gas chromatography- mass spectrometry (GC-MS) analysis as detailed below.
  • GC-MS gas chromatography- mass spectrometry
  • GC-apparatus Agilent Technologies GC 6890N; column : AT-5MS 60 m, 0.25 mm ID ; film thickness 0.25 micrometer; detector: Agilent Technologies MS-5973 Inert; injector: CIS 4 Gerstel; autosampler: MPS2 Gerstel; temperature program: 5 minutes (min) at 35°C, then at 5°C/min to 225°C, followed by 10°C/min to 325°C (run time 53 min); detection: Massspectrometer (MS), full scan, El 70 mV.
  • MS Massspectrometer
  • test sample treated by a method according to the invention or treated by a prior art method was, immediately after the end of the washing cycle, weighed and put into a vial which was then air-tight sealed by a rubber cap. After an incubation period of 15 minutes at 125°C, a sample of 2.5 microliter from the headspace of the vial was automatically taken and injected into the GC-MS. The fragrance as such has been analysed too by GC-MS to determine the odorous components of the fragrance.
  • the remaining amount of adsorbed fragrance on similarly treated test samples after different periods of exposure to the air at room temperature under standardised conditions was determined, thus providing data on the evolution of the amount of adsorbed fragrance of the test samples stored on the air as a function of time.
  • test samples were treated according to the method of the invention with a laundry detergent composition and a laundry softener composition, used in a weight ratio 1/1, either of them containing a particular polysaccharide and/or a particular hydrophobically modified polysaccharide or a combination of both, as detailed in table 2 below.
  • the treated gloves were stored for 4 weeks on the air and then presented to a panel of 20 people. The people had to indicate which of the gloves presented the best long-lasting fragrance.
  • the results were as follows:
  • the method of the invention has been illustrated above with the fragrance Perfume Laundry Soft 354427-B (trade name of LUZI AG, Switzerland), but the method also applies to all fragrances and perfumes and finished blends thereof suitable for providing fragrance to laundry.
  • the method and composition of the invention are generally suitable for providing desirable fragrance, particularly long-lasting fragrance, to woven and non-woven textile fabrics made from natural fibres of plant origin, such as cellulose fibres, including cotton, flax and sisal, and fibres of animal origin, including wool and silk, artificial fibres such as cellulose-derived fibres, for example viscose, rayon and cellulose-acetate, and synthetic fibres, for example polyamides, polyesters, polyacrylic fibres, polyethylene and polypropylene fibres, and any mixtures thereof.
  • natural fibres of plant origin such as cellulose fibres, including cotton, flax and sisal, and fibres of animal origin, including wool and silk
  • artificial fibres such as cellulose-derived fibres, for example viscose, rayon and cellulose-acetate
  • synthetic fibres for example polyamides, polyesters, polyacrylic fibres, polyethylene and polypropylene fibres, and any mixtures thereof.
  • said improved transfer and improved absorption/fixation of the fragrance onto laundry provided by the method of the invention also enable to reduce the amount of fragrance provided via the laundry composition to the washing cycle, while nevertheless obtaining the same odorous effects at the end of the washing cycle compared to a prior art method wherein initially more fragrance is provided via the laundry composition but of which more of it is lost during the washing cycle via the washing and rinsing waters.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Molecular Biology (AREA)
  • Emergency Medicine (AREA)
  • Textile Engineering (AREA)
  • Detergent Compositions (AREA)
EP07009982A 2007-05-18 2007-05-18 Méthode pour poser du parfum à un substrat contenant du parfum Withdrawn EP1992681A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP07009982A EP1992681A1 (fr) 2007-05-18 2007-05-18 Méthode pour poser du parfum à un substrat contenant du parfum
EP20080758550 EP2155850B1 (fr) 2007-05-18 2008-05-15 Procédé permettant de donner un parfum à un substrat; substrat contenant un parfum
US12/596,798 US8496994B2 (en) 2007-05-18 2008-05-15 Method for providing fragrance to a substrate; fragrance-containing substrate
PCT/EP2008/003913 WO2008141765A1 (fr) 2007-05-18 2008-05-15 Procédé permettant de donner un parfum à un substrat; substrat contenant un parfum
ES08758550.1T ES2481451T3 (es) 2007-05-18 2008-05-15 Método para proporcionar fragancia a un sustrato; sustrato que contiene fragancia

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07009982A EP1992681A1 (fr) 2007-05-18 2007-05-18 Méthode pour poser du parfum à un substrat contenant du parfum

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EP1992681A1 true EP1992681A1 (fr) 2008-11-19

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011023982A1 (fr) * 2009-08-31 2011-03-03 Reckitt & Colman (Overseas) Limited Composition d'apprêt anti-tache

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5425887A (en) * 1993-07-26 1995-06-20 Lever Brothers Company, Division Of Conopco, Inc. Encapsualted perfume in fabric conditioning articles
EP0792888A1 (fr) * 1996-03-01 1997-09-03 Südzucker Aktiengesellschaft Mannheim/Ochsenfurt Ester d'acide carboxylique aliphatique de l'inuline
WO1998012291A2 (fr) * 1996-09-18 1998-03-26 The Procter & Gamble Company Particule pour additif de lessive a couches superficielles multiples
US5858959A (en) * 1997-02-28 1999-01-12 Procter & Gamble Company Delivery systems comprising zeolites and a starch hydrolysate glass
WO2003031043A1 (fr) * 2001-10-09 2003-04-17 Tiense Suikerraffinaderij N.V. Tensioactifs a base de saccharides rendus hydrophobes par modification
EP1380284A1 (fr) * 2002-07-08 2004-01-14 L'Oreal Compositions cosmétiques détergentes contenant un tensioactif anionique, un tensioactif amphotère ou non ionique et un polysaccharide et utilisation
EP1600151A1 (fr) * 2004-04-29 2005-11-30 Kao Corporation Particules de parfum et procédé pour leur preparation.

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5425887A (en) * 1993-07-26 1995-06-20 Lever Brothers Company, Division Of Conopco, Inc. Encapsualted perfume in fabric conditioning articles
EP0792888A1 (fr) * 1996-03-01 1997-09-03 Südzucker Aktiengesellschaft Mannheim/Ochsenfurt Ester d'acide carboxylique aliphatique de l'inuline
WO1998012291A2 (fr) * 1996-09-18 1998-03-26 The Procter & Gamble Company Particule pour additif de lessive a couches superficielles multiples
US5858959A (en) * 1997-02-28 1999-01-12 Procter & Gamble Company Delivery systems comprising zeolites and a starch hydrolysate glass
WO2003031043A1 (fr) * 2001-10-09 2003-04-17 Tiense Suikerraffinaderij N.V. Tensioactifs a base de saccharides rendus hydrophobes par modification
EP1380284A1 (fr) * 2002-07-08 2004-01-14 L'Oreal Compositions cosmétiques détergentes contenant un tensioactif anionique, un tensioactif amphotère ou non ionique et un polysaccharide et utilisation
EP1600151A1 (fr) * 2004-04-29 2005-11-30 Kao Corporation Particules de parfum et procédé pour leur preparation.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011023982A1 (fr) * 2009-08-31 2011-03-03 Reckitt & Colman (Overseas) Limited Composition d'apprêt anti-tache

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