ES2220460T3 - COLADA COMPOSITIONS. - Google Patents

Abstract

A composition to be used in the rinse of a laundry load, which contains perfumed particles placed or absorbed in or on the particles, characterized in that the particles are formed by a cross-linked organic polymer material and have an average particle size not larger than 1 micrometer, in which there is a cross-linking between at least 0.5% numerical of the total number of monomer residues present in the polymer.

Description

Laundry compositions.

This invention relates to the scented of rinse conditioning compositions.

Rinse conditioners are products which are designed to be added to the water used for rinsing of laundry loads after washing with a composition Detergent. These conditioners contain a material whose function is to confer an advantage to the laundry load after that the laundry load has been cleared and dried. One of the main advantages supplied by these products is the smoothness.

It is normal to include a perfume in these rinse conditioners, first to increase the product attraction for the user and, secondly, for Supply the perfume to the laundry load itself.

It is known to incorporate perfume into a wearer porous to reduce the rate at which the perfume evaporates and, therefore, prolong the time during which the fragrance of Perfume continues to be noticeable.

The document US-A-4446032 describes compositions rinse conditioners containing perfume treated in the carrier particles that can be porous or, alternatively, they can be closed capsules with an impenetrable layer surrounding to perfume This document states that an agent must be included suspension in the composition.

The document JP-A-63/122796 describes the addition of a polymer latex containing cationic amino groups or tertiary to a detergent composition, in order to increase the perfume tank

WO 98/28396 (Quest) describes a perfume absorbed in particles of an organic polymer and that have an additional polymer on the outside. Polymer particles described desirably have an average particle size of at minus 10 µm.

WO 98/28339 (Quest) describes polymer particles comprising a hydrophobic organic matrix and placed in the outer free cationic groups and a polymer additional comprising free hydroxy groups. Particles of Polymers described desirably have an average size of particles of at least 10 µm.

EP 397246 (Minessota Mining) describes perfume particles comprising a dispersed perfume in certain water-insoluble and encapsulated polymeric materials in a protective wrap covering with a material of friable coating.

EP 617051 (Allied Colloids) describes that the controlled release of a fragrance can be provided by incorporating it during emulsion polymerization of a water-insoluble monomer material in which it is dissolved, and controlling the composition of the monomer mixture and the T g of the resulting polymer.

The present invention provides a composition to be used in the rinse of a laundry load, which contains perfume particles placed or absorbed in or on the particles, in which the particles are formed by a crosslinked organic polymer material and have an average size of particles not larger than 1 micrometer, in which there is a cross-linking between at least 0.5% numerical of the total number of monomer residues present in the polymer.

Preferably, the polymer material is a latex.

It has been found that crosslinked latices they provide a superior supply of perfume to fabrics and a Better physical stability to the product.

In preferred forms, this invention is refers to rinse conditioning compositions that They incorporate an effective material to soften fabrics.

The incorporation of a perfume in this way It can lead to an increase in the amount of perfume that remains on the cloth after drying, especially when the cloth is dried in a heated drum dryer.

Additionally particles of this size small colloidal remain in suspension in an aqueous liquid and not there is a need to incorporate a separate suspending agent.

A method is also provided for treating a laundry load comprising contacting said load of laundry with a composition as described herein descriptive memory.

In addition to this, this invention provides a method for preparing a rinse conditioner comprising mix (i) a fabric softener material and (ii) particles of crosslinked organic polymer material in which there is a cross-linking between at least 0.5% numerical of the total number of monomer residues present in the polymer, having the particles an average particle size not larger than 1 micrometer and with perfume placed or absorbed in them or on the same.

In this aspect, the invention can provide a way to incorporate perfume in a conditioning composition of rinsing while avoiding or minimizing adverse effects over viscosity It has been found that perfume can produce adverse changes in the viscosity of the compositions rinse conditioners, especially when they contain a substantial percentage of fabric softener. In extreme cases, the addition of a perfume to a conditioning composition of the concentrated rinse can cause it to gel and become still.

The incorporation of perfume in a latex can Avoid or lessen this. This feature of the invention has been found to be applicable in particular to compositions that they contain at least 8%, more especially at least 12% by weight of fabric softening material. The amount of softening material of fabrics can be placed in a range of 12% to 40% by weight, or it can be even greater than 80% or 90% by weight of the composition.

It has now been conceived in particular that the fabric softener material can be a fabric softener material cationic fabrics in an amount that is at least half of the total amount of fabric softener material present and also that is at least 8% by weight of the composition, especially at minus 12% by weight of the composition.

In certain preferred forms, this invention is particularly refers to lattices of crosslinked polymer whose particles have the perfume trapped in them. It has been found that crosslinked latices provide a supply superior perfume to fabrics and better physical stability at product.

The compositions to which it can be applied This invention and the materials used will be described below. more in detail

Fabric softener rinse conditioners

A variety of materials are effective for soften fabrics and can be supplied to the fabric from a aqueous composition

A fabric softening agent works to provide a fabric with a softer handling. Frequently, these agents also provide an advantage anti-static

Fabric softening agents used in rinse conditioning compositions are usually materials with low water solubility. Normally the Acidified water solubility at pH 2.5 and 20 ° C is less than 10 g / liter, preferably less than 1 g / liter. When they are added to rinse water, these materials form a dispersed phase that then it is able to be deposited on fabrics that are being rinsed in the water.

Many fabric softening materials are placed within the categories of amphoteric, bipolar compounds, cationic and nonionic.

The softening materials of amphoteric fabrics, Bipolar and cationic include a polar group and usually a or more hydrophobic aliphatic chains such as alkyl or alkenyl groups each of which contains at least 6 carbon atoms, for example, a range of 6 to 50 carbon atoms in a chain continuous hydrocarbon or an interrupted hydrocarbon chain with a heteroatom. In many materials there is a single aliphatic chain containing 12 to 50 carbon atoms, or a plurality of chains aliphatic containing each 6 to 30 carbon atoms. These aliphatic chains may be interrupted with a heteroatom as, for example, in a link

\hskip0.5cm

---

\uelm{C}{\uelm{\dpara}{O}}

---NH---

\hskip0.5cm

o

\hskip0.5cm

---

\uelm{C}{\uelm{\dpara}{O}}

---O------OR---,

 \ hskip0.5cm 

---

 \ uelm {C} {\ uelm {\ dpara} {O}} 

--- NH ---

 \ hskip0.5cm 

or

 \ hskip0.5cm 

---

 \ uelm {C} {\ uelm {\ dpara} {O}} 

---OR---

It is generally preferred that a chain hydrophobic aliphatic does not incorporate more than one heteroatom of interruption.

A non-ionic fabric softener material will generally include a polar group and a hydrocarbon chain aliphatic of 6 to 30 carbon atoms, optionally interrupted with a heteroatom as mentioned above, although the hydrocarbon chains of 6 to 18 carbon atoms, especially 6 at 11 carbon atoms, they are preferably without any interruption.

The cationic fabric softeners are one special commercial importance and are a preferred type of softener according to the invention. The preferred forms of this invention include cationic fabric softeners, optionally with an anionic, amphoteric or bipolar fabric softener present additionally. Therefore, the amount of softening agent of cationic fabrics can be equal to or greater than the amount of any softening agent or surfactant other than cationic

Many fabric softening agents important commercially they are organic compounds that contain nitrogen, and at minus a hydrocarbon chain of 6 to 50 carbon atoms. The nitrogen atom can be quaternary, but it doesn't need to be, such as in the amines and imidazolines that protonate at a Quaternary form in acid solution.

Some specific examples of agents Fabric softeners are:

1) Acyclic quaternary ammonium compounds. These compounds are of general formula (I)

\melm{\delm{\para}{Q _{3} }}{N+}{\uelm{\para}{Q _{4} }}

---Q_{2}

\hskip1cm

X^{-}(I) Q_ {1} ---

 \ melm {\ delm {\ para} {Q3}} {N +} {\ uelm {\ para} {Q4}}} 

--- Q_ {2}

 \ hskip1cm 

X -

in which each Q_ {1} is a group hydrocarbyl containing 15 to 22 carbon atoms. Q_ {2} is a saturated alkyl or hydroxy-alkyl group that It contains 1 to 4 carbon atoms. Q_ {3} can be as defined for Q1 or Q2, or it can be phenyl, Q4 can be as defined for Q_ {1} or Q_ {2} and X - is an anion preferably selected from the halide radicals, acetate, methyl sulfate and ethyl sulfate.

\hbox{-COO-,}

etc.Throughout this exposure of fabric softening agents, the term "hydrocarbyl group" refers to alkyl or alkenyl groups optionally substituted or interrupted with functional groups such as -OH, -O-, CONH,

 \ hbox {-COO-,} 

etc.

Representative examples of these softeners Quaternaries include methyl sulfate or chloride tallow trimethyl ammonium chloride disebo-dimethyl ammonium, methyl sulfate disebo-dimethyl ammonium chloride dihexadecyl dimethyl ammonium, methyl sulfate or di (tallow) chloride hydrogenated) -dimethyl-ammonium, chloride di (coco) -dimethyl-ammonium, dihexadecyl diethyl ammonium chloride or chloride of dibehenyl dimethyl ammonium.

Preferred among these chloride are disebo-dimethyl ammonium chloride say (tallow) hydrogenated) -dimethyl-ammonium chloride of di (coco) -dimethyl-ammonium and Metasulfate from di (coco) -dimethyl-ammonium.

Examples of commercially available materials in this class are ARQUAD 2C, ARQUAD 2HT, ARQUAD 2T (all of the Akzo company), PRAPAGEN WK, PRAPAGEN WKT, DODIGEN 1829 (all of the Clariant company), QUERTON 4BG, QUERTON 442 (all of the company Akzo), AMMONYX KP, AMMONYX SKD (all from Millchem), SYNPROLAM FS (of the Unichema company). Product names are He believes they are registered trademarks.

2) Alkoxylated polyamines

Alkoxylated polyamines of the formula are known general (II)

one

Each Q_ {4} is a hydrocarbyl group that It contains 10 to 30 carbon atoms. Groups Q_ {5} can be the same or different and each represent hydrogen, (-C 2 H 4 O) p H, (C 3 H 6 O) q H, (C 2 H 4 O) p, (C 3 H 6 O) Q, H and a alkyl group containing 1 to 3 carbon atoms or the group (CH 2) n, N (Q 5) 2; n and n 'are each an integer from 2 to 6, m is an integer from 1 to 5 and p, q and (p '+ q') can be numbers such that (p + q + p '+ q') does not exceed 25. X - is an anion.

The alkoxylated polyamines suitable to be used in the present invention include N-tallow, dihydrochloride N, N ', N'-tris (2-hydroxyethyl) -1,3-propane-diamine; dichloride or dimetasulfate of N-cocoyl-N, N, N ', N'-pentamethyl-1,3-propane-diamonium; dimethyl sulfate N-stearyl-N, N ', N'-tris (2-hydroxyethyl) -N, N'-dimethyl-1,3- propanediamonium; dihydrobromide N-palmityl-N, N ', N'-tris (3-hydroxypropyl) -1,3-propanediamonium or trihydrochloride of N-seboil-N- (3-aminopropyl) -1,3- propanediamine

3) Diammonium Ammonium Salts quaternary

The quaternary diamido salts of the general formula (III) it is also known that they are useful as softening agents of fabrics.

\uelm{C}{\uelm{\dpara}{O}}

NH---Q_{6}---

\melm{\delm{\para}{Q _{5} }}{N ^{+} }{\uelm{\para}{Q _{2} }}

---Q_{6}---NH---

\uelm{C}{\uelm{\dpara}{O}}

---Q_{2}

\hskip1cm

X^{-}(III) Q_ {1}

 \ uelm {C} {\ uelm {\ dpara} {O}} 

NH --- Q_ {6} ---

 \ melm {\ delm {\ para} {Q5}} {N ^ {}} {\ uelm {\ para} {Q2}}} 

--- Q_ {6} --- NH ---

 \ uelm {C} {\ uelm {\ dpara} {O}} 

--- Q_ {2}

 \ hskip1cm 

X -

Q6 is a divalent alkylene group that It contains 1 to 3 carbon atoms. Q_ {1}, Q_ {2}, Q_ {5} and X - are as previously defined. Material examples suitable are methyl sulfate of methylbis (seboamidoethyl) (2-hydroxyethyl) ammonium and methyl sulfate methyl bis (tallow) hydrogenated-amido-ethyl) (2-hydroxyethyl) ammonium. These materials are available at the Goldschmidt company under trademarks VARISOFT 222 and VARISOFT 110 respectively, and under the registered trademark ACCOSOFT of the company Stepan.

4) Quaternary ammonium ester salts

A certain number of salts with ester groups that contain quaternary ammonium, including those described in EP 345842 A2 (Procter & Gamble), EP 239910 (Procter & Gamble) and US 4137180 (Lever) and incorporated as a reference to The present specification is known to be particularly useful as softening materials. These materials can be represented by the general formulas (IV) and (V) below.

\melm{\delm{\para}{Q _{9} }}{N ^{+} }{\uelm{\para}{Q _{8} }}

---CH_{2}---Y---Z---Q_{10}

\hskip1cm

X^{-}(IV) Q_ {7} ---

 \ melm {\ delm {\ para} {Q9}} {N ^ {}} {\ uelm {\ para} {Q 8}}} 

--- CH_ {2} --- Y --- Z --- Q_ {10}

 \ hskip1cm 

X -

\melm{\delm{\para}{Q _{2} }}{N ^{+} }{\uelm{\para}{Q _{2} }}

---(CH_{2})_{n}---

\delm{CH}{\delm{\para}{\delm{Z}{\delm{\para}{Q _{10} }}}}

---CH_{2}---Z---Q_{10}

\hskip1cm

X^{-}(V) Q_ {2} ---

 \ melm {\ delm {\ para} {Q2}} {N ^ {}} {\ uelm {\ para} {Q2}}} 

--- (CH2) n ---

 \ delm {CH} {\ delm {\ para} {\ delm {Z} {\ delm {\ para} {Q10}}}} 

--- CH_ {2} --- Z --- Q_ {10}

 \ hskip1cm 

X -

In formula (IV) Q_ {7} is a group hydrocarbyl containing 1 to 4 carbon atoms, Q 8 is (CH 2) n -Z-Q 10 where n is an integer from 1 to 4 or -Q_ {10}. Q_ {9} is a alkyl or hydroxyalkyl group of 1 to 4 carbon atoms, or is as defined for Q_ {8}. Q_ {10} is a hydrocarbyl group that It contains 12 to 22 carbon atoms and Y can be -CH (OH) -CH 2 - or Q 5, as defined previously. Z can be -O-C (O) -O, C (O) -O or -O-C (O) - and X - is an anion.

In the formula (V) the symbols Q_ {2}, Q_ {10}, Z and X - have the meanings previously described.

Examples of suitable materials based on the formula IV are methyl sulfate of methyl bis [ethyl (seboyl)] - 2-hydroxyethyl ammonium (or its equivalent of oleyl), chloride N, N-di (seboyl-oxyethyl) -N, N-dimethyl ammonium; chloride N, N-di (2-seboyloxy-2-oxo-ethyl) -N, N-dimethyl ammonium;  chloride N, N-di (2-seboyloxyethylcarbonyl-oxyethyl) -N, N-dimethyl ammonium; chloride N- (2-seboyloxy-2-ethyl) -N- (2-seboyloxo-2-oxyethyl) -N, N-dimethyl ammonium;  chloride N, N, N-tri (seboyl-oxyethyl) -N-methyl-ammonium; N- (2-seboyloxy-2-oxyethyl) -N- (seboyl-N, N-dimethyl) -ammonium. The seboyl group may be substituted with cocoyl groups, palmoyl, lauryl, oleyl, stearyl and palmethyl. An example illustrative of a material of formula V is propane chloride 1,2-diseboil (hardened) oxy-3-trimethylammonium.

Examples of commercially available materials can be obtained under the registered trademark STEPANTEX VRH 90 (of Stepan), AKYPOQUAT (from Kao) and in the form of mixtures of mono- and di-tallow esters and chloride 2,3-dihydroxy-propane-trimethyl-ammonium (from the company Clarient).

5) Quaternary imidazolinium salts

An additional class of softening materials cationic is constituted by the imidazolinium salts of general formula (VI).

two

in which Q_ {11} is a group hydrocarbyl containing 6 to 24 carbon atoms, G is -N (H) - or -O- or NQ_ {2}, n is an integer between 1 and 4 and Q_ {7} is as defined previously.

Preferred imidazolinium salts include Metasulfate from 1-methyl-1- (seboylamido) ethyl-2-seboyl-4,5-dihydro-imidazolinium and chloride of 1-methyl-1- (palmitoylamido) ethyl-2-octadecyl-4,5-dihydroimidazolinium. Other useful imidazolinium materials are 2-heptadecyl-1-methyl-1- (2-stearylamido) ethyl-imidazolinium and chloride of 2-lauryl-1-hydroxyethyl-1-oleyl-imidazolinium. Fabric softener components of imidazolinium of US 4127489, incorporated by reference to the present specification.

Commercially representative materials available are VARISOFT 475 (from Goldschmidt) and REWOQUAT W7500 (from the company Rewo).

A particular aspect of the invention relates to to compositions in which the amount of softening material of fabrics that is cationic is a majority of the softening material of fabrics present.

6) Primary, secondary and amines tertiary, secondary and tertiary amines of general formula (VII) are useful as softening agents:

\melm{\delm{\para}{Q _{13} }}{N}{\uelm{\para}{Q _{11} }}

(VII) Q_ {12} ---

 \ melm {\ delm {\ para} {Q13}} {N} {\ uelm {\ para} {Q11}}} 

in which Q_ {11} is a group hydrocarbyl containing from 6 to 24 carbon atoms, Q 12 is hydrogen or a hydrocarbyl group containing 1 to 22 atoms of carbon and Q 13 can be hydrogen or Q 7. Preferably the amines are protonated with hydrochloric acid, acid orthophosphoric or citric acid or any other similar acids to be used in fabric conditioning compositions of is invention.

7) Alkoxylated amines

The alkoxylated amines of the general formula (VIII) They are also useful as components of this invention.

3

in which Q_ {14} is (C 2 H 4 O) x H, Q 15 is (C 2 H 4 O) y H and Q 16 is (C 2 H 4 O) z H and x + and is within the range of 2 to 15 and x + y + z is within the range of 3 to 15, m can be 0, 1 or 2 and Q_ {1} is as defined previously.

Examples of these materials are monosebodipolyethoxyamine containing 2 to 30 units of oxide ethylene, tallow-N, N'N'-tris (2-hydroxyethyl) -1,3-propylenediamine or (C 10 alkyl to C 18) - N-bis (2-hydroxyethyl) amines.

Examples of materials available in the Commerce are available under the ETHOMEEN trademarks and ETHODUOMEEN (from the company Akzo).

8) Cyclic amines

Other useful materials are cyclic dialkyl amines represented by the formula (IX).

4

in which the groups Q_ {17} are independently select among hydrocarbyl groups that they contain 3 to 30 carbon atoms and A can be oxygen (-O-) or nitrogen (-N-), preferably nitrogen; B is selected from Q_ {5} as defined above or the group -Q_ {13} -T-C (O) - in which Q 18 is Q 5 or (-C 2 H 4 O) m in which m is an integer from 1 to 8 and T is selected from oxygen or NQ_ {13}. The flashing line shows a possible double bond between A and C. If absent, it is replaced with link (s) to hydrogen atom (s) additional (s).

Illustrative materials are 12-stearyl-oxyethyl-2-stearyl-imidazoline, 1-stearyl-oxyethyl-2-palmityl-imidazoline, 1-stearyl-oxyethyl-myristyl-imidazoline, 1-palmityl-oxyethyl-2-palmityl-imidazoline, 1-palmityl-oxyethyl-2-myristyl-imidazoline, 1-stearyl-oxyethyl-2-tallow-imidazoline, 1-myristyl-oxyethyl-2-tallow-imidazoline, 1-palmityl-oxyethyl-2-tallow-imidazoline, 1-coco-oxyethyl-2-coco-imidazoline, 1-tallow-oxyethyl-2-tallow-imidazoline and their mixtures. It is also useful stearyl-hydroxyethyl-imidazoline, commercially available as MONAZOLINE S (from the company Unichema), 1-tallow-amido-ethyl-2-tallow-imidazoline Y methyl-1-tallow-amidoethyl-2-tallow-imidazoline.

Yet another class of softener materials from Suitable fabrics are condensation products formed from of the reaction of fatty acids with a selected polyamine between the group consisting of hydroxyalkyl, alkylene diamines and dialkylenetriamines and mixtures thereof. The right materials are described in the document EP-A-199382 (Procter). They are preferred among these the mixtures of molecules of the formula general X and the corresponding salts obtained by protonation partial.

5

W is selected from hydrogen and the group -C (O) -Q_ {1} and the other symbols are like They were previously defined. Commercially available materials from This class can be obtained from the company Clariant as Ceranine HC39, HCA and HCPA.

9) Fabric bipolar softeners

Other ingredients useful as systems softeners include bipolar quaternary ammonium compounds as described in EP 332270 A2 (Unilever) incorporated as reference to the present specification. The Representative materials of this class are illustrated by the general formulas (XI) and (XII).

\melm{\delm{\para}{Q _{19} }}{N ^{+} }{\uelm{\para}{Q _{19} }}

---Q_{20}---Z^{-}(XI) Q_ {11} ---

 \ melm {\ delm {\ para} {Q19}} {N ^ {}} {\ uelm {\ para} {Q19}} 

--- Q_ {20} --- Z -

\uelm{C}{\uelm{\dpara}{O}}

---NH---Q_{20}---

\melm{\delm{\para}{Q _{19} }}{N ^{+} }{\uelm{\para}{Q _{19} }}

---Q_{20}---Z^{-}(XII) Q_ {11} ---

 \ uelm {C} {\ uelm {\ dpara} {O}} 

--- NH --- Q_ {20} ---

 \ melm {\ delm {\ para} {Q19}} {N ^ {}} {\ uelm {\ para} {Q19}} 

--- Q_ {20} --- Z -

in which the Q_ {19} groups are independently select between Q_ {7}, Q_ {11} and Q_ {14}; Q 20 is a divalent alkylene group containing 1 to 3 atoms carbon and may be interrupted with -O-, -CONH, -C (O) O-, etc .; and Z- is an anionic group Water solubilizer (for example, carboxy, sulfate, sulfo or phosphonium).

Examples of commercially available materials are the EMPIGEN CD and BS series (from Albright & Wilson), the REWOTERIC AM series (from Goldschmidt), the REWOTERIC AM series (from Goldschmidt) and the series Tegobetaine F, L and N (from Goldschmidt).

In all softener compounds of fabrics mentioned above in which a name is provided of alkyl chain, the equivalent can also be used hardened, for example, tallow or hardened tallow.

10) Non-ionic ingredients

It is well known to mix the non-ionic material with cationic, amphoteric or bipolar softening materials as a means to improve the dispersion of fabric softener of the softening mixture.

Suitable non-ionic adjuvants include lanolin and lanolin derivatives, fatty acids containing 10 at 18 carbon atoms, esters or fatty acids containing 8 at 24 carbon atoms with mnohydroxylated alcohols containing from 1 to 3 carbon atoms and polyhydric alcohols that they contain 2 to 14 carbon atoms, for example, 2 to 12 atoms of carbon such as sucrose, sorbitan, along with fatty acids alkoxylates, alcohols and lanolines containing an average of no more than 7 alkylene oxide groups per molecule. The materials adequate have been described in the documents EP-A-88520 (Unilever), EP-A-122141 (Unilever), GB 2157728A (Unilever), GB 8410321 (Unilever), EP-A-159918 (Unilever), EP-A-159922 (Unilever) and EP-A-79746 (Procter).

The composition may comprise additional or alternative, as a fabric softening agent, a oily sugar derivative that is a liquid or solid derivative soft of a cyclic polyol or a reduced saccharide, and said derivative  it turns out that they are stylized or etherified from 35 to 100% of the hydroxyl groups in said polyol or in said saccharide. The derivative has two or more ester or ether groups independently attached to an alkyl or alkenyl chain of C_ {8} -C_ {22}. Preferably, the derivative of Oily sugar contains 35% by weight of tri-esters or esters higher, for example, at least 40%. WO 98/16538 (Unilever) describes these derivatives and is incorporated by reference to the present specification.

Preferably, from 35% to 85%, the most preferably 45 to 70% of the hydroxyl groups in said polyol cyclic or reduced saccharide are esterified or etherified to produce the derivative.

The prefixes tetra etc. used refer to average degrees of esterification or etherification; the compounds they exist as a mixture comprising from the monoester to the fully esterified ester.

Derivatives do not have a character substantially crystalline at 20 ° C. The starting material is esterified or etherified with said alkyl chains or alkenyl to a scope in order to produce derivatives in form of a liquid or a soft solid.

Normally, the derivative has 3 or more, preferably 4 or more, for example, 3 to 5 ester or ether groups or their mixtures

The derivative can be obtained from a saccharide, for example, monosaccharides that include xylose, arabinose, galactose, fructose, sorbose and especially glucose, or disaccharides that include maltose, lactose, cellobiose and especially sucrose.

An example of a reduced saccharide is sorbitan. If it is based on a disaccharide, it is preferred that the disaccharide have 3 or more ester or ether groups attached thereto, for example, includes tri-, tetra- and penta-esters of sucrose.

Examples of suitable derivatives include esters of alkyl (poly) glycosides, in particular esters of alkyl glycosides that have a degree of polymerization from 1 to 2.

The derivative may have alkyl chains or linear or branched alkenyl (of varying degrees of branching), mixed chain lengths and / or unsaturation. They are preferred those having alkyl chain lengths unsaturated and / or mixed. For example, fat chains predominantly unsaturated may be linked to the groups ester / ether, for example, those derived from rapeseed oil, oil of cottonseed, soybean oil, oleic sources, tallow, palmitolecias, linoleicas, erucicas or other fatty acids unsaturated vegetables

Examples of fatty sugar derivatives Suitable include sucrose tetaseboate, tetracolzate sucrose, sucrose tetraoleate, sucrose tetraesters and soybean oil or cottonseed oil, tetraoleate cellobiose, sucrose trioleate, sucrose thiapeate, pentaoleate of sucrose, sucrose pentacolzate, sucrose hexaoleate, sucrose hexacolzate, sucrose esters, pentaeters and hexaesters of soybean oil or cottonseed oil, glucose trioleate, glucose tetraoleate, xylose trioleate, sucrose or tetra-, tri-, penta- or hexa-esters tetralinoleate of sucrose with any mixture of fatty acid chains predominantly unsaturated

Other suitable fatty sugar derivatives include sucrose pentalaurate, sucrose pentaerucate, sucrose tetraerucate. Suitable materials include the same Ryoto series available in the Mitsubishi company Kagaku Foods Corporation.

The liquid or soft solid derivatives are characterized as materials that have a relationship of solid: liquid between 50:50 and 0: 100 at 20 ° C as determined by NMR of relaxation time T2, preferably between 43:57 and 0: 100, most preferably between 40:60 and 0: 100, as 20:80 and 0: 100. The relaxation time NMR T2 is commonly used to characterize solid: liquid relationships in products soft solids such as fats and margarines. For the purpose of the present invention, any component of the NMR signal with a T2 of less than 100 microseconds is considered a component solid and any component with a T2 greater than 100 Microseconds is considered a liquid component.

Derivatives of oily sugars can be prepared by a variety of methods well known for Those skilled in the art. Typical preparations of these materials in documents US 4,386,213 and AU 14416/88 (Procter and Gamble).

Fabric softening compositions they generally do not contain an anionic detergent component or a bleach or a detergency builder. It is desirable that quantities (if any) of anionic detergent component, bleach and detergency builder are all smaller than the amount of fabric softening agent. The amount of each of these may be less than 5% by weight of the composition complete.

A rinse conditioning composition according to this invention it will usually contain from 0.5% to 90% by weight of fabric softener material, for example, 0.5-40% More specifically, the so-called diluted compositions generally contain from 1% to approximately 8% by weight fabric softening agent, while that compositions containing about 8% to 20% in Fabric softener material weight have been classified as "concentrated." Higher concentrations, in the range of at least 8%, at least 12% or up to 40% by weight are also possible, But even this is not the upper limit. Still, higher concentrations from 40% to 80% or even 90% in Weight are possible in a very concentrated product. As mentioned previously, fabric softening agents can not be used cationic ionics.

Fragrance

The term "perfume", as used in the This specification indicates materials that are used in perfumery and mixtures of these materials. Often the Perfume will be a mixture of perfumery materials. Examples of Suitable perfumes can be found in the publication "Perfume and flavor Chemicals "by Steffen Erctander (Library Library of Congress, catalog card nº 75-91398).

The perfume can work in isolation for confer the fragrance. However, perfumes can perform other functions, such as reducing the appearance of body odor, as described in the document US-A-4134838 and EP-A-545556. These perfumes Deodorants are within the scope of this invention and may confer or not confer fragrances. Deodorant perfumes with a bass noticeable smell are described in the document EP-A-404470.

Preferably, the polymer particles Organic crosslinked have perfume trapped in it.

Polymers

It is a feature of this invention that particles are composed of an organic polymer material crosslinked These particles can be prepared from a variety of organic monomers, although in general these are Materials with olefinic unsaturation. The preparation can be by an emulsion polymerization process, as will explain more in detail later.

It is also a feature of this invention. that the particles have an average diameter that is not greater than 1 \ mum. Particles of this small size can remain in a colloidal suspension. As is known, the particles of colloidal dimensions are maintained in suspension by means of Brownian movement and by the effect of the charges on the particle surfaces, which can cause the particles repel each other and stay apart. Also, as the particle size is small in relation to the wavelength of light, generally not visible although They provide an appearance of turbidity. Therefore, a composition rinse conditioner that contains them may have a translucent appearance.

There are three preferred techniques for production of a polymer with a perfume absorbed therein as described in the present specification. These are as follows:

Method A is to synthesize a polymer latex by emulsion polymerization in the presence of perfume. The monomers used may include some polyfunctional monomer in order to produce crosslinking in the polymer. This increases the strength and stiffness of the polymer. A low level of crosslinking provides the ability for the particles to maintain perfume. Therefore, they should desirably crosslink between at least 0.5% and 15% numerical of the total number of monomer residues present in the polymer and, more preferably, between 1 and 10%, for example, between 1 and 5% of the residues of monomer. The polymer particle size range is preferably between 50 and 200 nanometers.

The techniques for the production of a latex of Small particles by emulsion polymerization are fine known. The polymerization is normally carried out in presence of a surfactant that functions as an emulsifier. The Elevation of the surfactant concentration leads to sizes of smaller particles, but generally does not lead to sizes of particles smaller than 50 nanometers unless a special method, for example, a microemulsion procedure. The particle size is also affected by temperature and, therefore, the reaction rate, stirring speed and monomer / initiator ratio. The high speeds of polymerization and higher stirring speeds lead to small particles The high proportions of monomer and the low initiator ratios favor the production of larger particles

After carrying out the polymerization in emulsion, it will usually be necessary to separate the monomer without react. This is often done by current distillation. of steam, which leads to some loss of perfume, although it has found that these perfume losses are acceptably little. Some monomers can be separated by reaction Chemistry to produce harmless or volatile products.

Method B, which is particularly preferred, is to start with a previously formed crosslinked polymer latex in the form of a dispersion in a liquid, for example, water. The perfume is dissolved in a low boiling organic solvent that is capable of swelling the polymer particles. The solution comes into contact with the polymer latex, causing the polymer particles to swell and absorb the perfume. The solvent is then evaporated, leaving the perfume trapped in the latex particles. There is some amount of crosslinking between the monomer residues as in method A.

For method B, the residual monomer can be separated from the polymer before the polymer comes into contact with perfume.

For any of these procedures, the Polymer must be able to form a colloidal emulsion in water. A colloidal polymer particle latex will generally contain 3% to 50% polymer, usually 3% to 40%. Can be used various polymerization methods to prepare polymers. I know they can also use modified natural or natural polymers, for example, a natural rubber latex.

The monomers suitable for polymerization by addition of radicals are those that contain unsaturation polymerizable olefinic. The monomers that can be used include styrene, vinyl acetate, ethylene, propylene, vinyl pyrrolidone, vinyl chloride, acetonitrile, methyl methacrylate and other acrylates and methacrylates. The Monomers can be used in isolation or in combination. Examples of polyfunctional monomers that can be used to effect the polymerization include divinyl benzene, divinyl ether, ethylene glycol dimethacrylate, triacrylate pentaerythritol and polyallyl sucrose. The initiators Suitable radicals include sodium or potassium persulfate, 2,2'-azobis-isobutyronitrile (AIBN) and 4,4'-azobis (acid 4-cyanovaleric). An initiator is preferable soluble in water. The polymerization temperature is preferably in the range of 40-90 ° C.

For Method B, it is possible to use polymers natural and natural modified, for example, cellulose, cellulose modified, cellulose acetate, cellulose butyrate e hydroxy ethyl cellulose, as well as synthetic latexes prepared from polymers previously cited.

When Method A is used, the perfume must be preferably soluble in the monomer and compatible with the polymer. For Method B, the perfume must also be compatible with the polymer itself. This avoids phase separations that may cause problems

Absorption of perfume by polymer they can be by absorption in the open pores through the capillary action, or by encapsulation or dissolution in the polymer of way that the release of perfume is by diffusion through the polymer, or it can be absorption in the hydrophobic polymer material. More than one of these absorption modes can be produced at the same weather.

A polymer with absorbed perfume can have the polymer and perfume in a weight ratio that is situated in the 25: 1 to 2: 1 range, especially 20: 1 to 3: 1.

The amount of polymer particles with perfume absorbed included in a rinse conditioning composition it is preferably such that a quantity of perfume is present in an amount of 0.1 to 10% by weight of the composition.

In many cases, the amount of polymer with absorbed perfume is likely to be such that the perfume assumes 0.1 at 3%, or even 0.1 to 2% by weight of the composition.

A composition according to this invention can incorporate additional perfume that is not placed or absorbed inside or on the particles (that is, it is outside the particles and not absorbed in them) in addition to the perfume that is absorbed on or inside these particles.

References herein descriptive of the amount of perfume absorbed in the particles It should be conceived as the amount of perfume placed inside or on the particles, but not the perfume separately added to the composition.

If this is done, it can be arranged by choice of quantities and nature of perfumes that respectively they are absorbed and not absorbed in the particles, that the fragrance on the fabrics after rinsing and drying It will come mainly from the perfume that was absorbed in the porous particles while the apparent fragrance of the rinse conditioning composition will be attributable mainly to the perfume that was not absorbed like this. This can do the producer may control a fragrance difference between the conditioning composition of the rinse and the fragrance of the fabrics after rinsing and drying.

Therefore, it may be desirable for the perfume which is not absorbed in the particles, which provides mainly the fragrance of the conditioning composition itself of the rinse, do not exhibit a high substantivity towards the fabrics. It may also be desirable that the weight ratio of perfume that respectively it is absorbed and not absorbed or included in or on the particles be in a range of 10: 1 to 1: 4, especially from 10: 1 or 4: 1 to 1: 1.

It may be provided that the polymer melts when be heated to ironing temperatures so that the perfume that is absorbed in the polymer particles be released and provide a noticeable fragrance during the ironing If desired, it will be appropriate for the organic polymer of the porous polymer particles soften and flow to a temperature in the range of 100 ° C to 220 ° C (i.e. have a melting point that is in the range of 100ºC-220ºC).

The choice of polymer characteristics It can affect the ease with which the perfume is released. The use of monomers that provide a more crystalline polymer, and that incorporate a cross-linking, will inhibit the release of the perfume, from so that the perfume can be released more slowly during a longer period or it can be released when ironing melt the polymer.

There is a cross-linking between at least 0.5% numerical of the total number of monomer residues present. There may be one cross-linking of up to 10% numerical of monomer residues, or possibly even more, for example, up to 15% numerical. It is preferred a range of 0.5% or 1% up to 5% or 8% numerical of the monomer residues in the polymer.

Other ingredients

The rinse conditioning compositions may contain a certain number of materials in addition to the material Fabric softener, porous particles and perfume. The materials that may be present include agents optical brighteners, dyes, opacity agents, hydrotropes, viscosity regulating agents such as electrolytes, stabilizers such as guar gum and polyethylene glycol, antistatic agents and ironing aids. Can be used silicones for this last purpose.

These various optional ingredients, if they are present in a rinse conditioner, usually not they will be present in amounts that exceed 5% by weight of the composition and in total may not be more than 10% by weight of the composition.

The rinse conditioning compositions according to the invention preferably have a lower pH than 6.0, more preferably a pH that varies in the range of 2.0 to 5.0. The rinse conditioning compositions may contain pH buffering agents such as weak acids and their salts, for example, phosphoric, benzoic or citric acids and salts thereof acids The amount of buffering material included in a composition can be placed in the range of 0.5-10% by weight, preferably not more than 5% in weight.

The rinse conditioning compositions of this invention are generally in the form of aqueous liquids which will generally contain at least 10%, usually at least 20% by weight of water and often from 50% or 60% to 97% by weight of water. However, other products that include powders, creams, pastes, blocks or tablets. The right types of blocks and tablets are described in the specification of European Patent No. EP-A-255,779 (Unilever). The ability of colloidal particles to staying in suspension naturally is the most relevant of the Products in liquid form.

In use, the compositions according to this invention they are preferably added to a much larger volume of water to form a liquid that is then used to come into contact with the fabrics that are going to be treated. Appreciably, this liquid it can be formed by adding a composition by hand or by means of a automatic water supply device in a machine washing machine.

An ingredient that is not normally included in the rinse conditioning compositions is an enhancer of the detergency Generally speaking, the compositions rinse conditioners according to this invention no they will contain an aluminosilicate ion exchange improver, neither any other inorganic material insoluble in water nor sodium tripolyphosphate or any other soluble electrolyte in water in quantities greater than the amount of the material rinse conditioner. It is likely that the compositions are completely free of tripolyphosphate and any water insoluble inorganic materials.

The invention will be explained further in detail and will be illustrated by the following examples, in the that all amounts and percentages are by weight unless indicate otherwise.

Example 1

A crosslinked polystyrene latex was prepared with perfume absorbed therein by Method A above aforementioned.

The polymerization was carried out in a reaction vessel that was an equipped round bottom flask with agitator, nitrogen inlet tube and reflux condenser. The materials used were:

styrene 8.8 grams

divinylbenzene (55% concentration) 0.17 grams

1 gram perfume

cetyl trimethylammonium bromide (CTAB) 0.4 grams

0.25 gram polymerization initiator

100 ml water

The CTAB dissolved in most of the water (90 ml) and the solution was degassed. The perfume dissolved in the styrene-divinylbenzene mixture and solution resulting was added to the surfactant solution in the flask. After 10 minutes the initiator was added in the remaining water and polymerization was allowed to take place during 6-8 hours while heating the contents of the flask at 70 ° C. Emulsion polymerization took place during this period of time providing a latex that consisted of a colloidal suspension of polymer particles in water. The size particle medium was about 0.1 µm. Monomer unreacted, it was distilled off in a steam stream. This led to some loss of perfume, but approximately 90% of the perfume remained in the polymer latex.

A greater amount of perfume in latex particles increasing the amount of perfume, up to approximately 2.5 grams.

Example 2

In this example perfume was incorporated into the latex performed according to method B above.

A polystyrene particle latex was prepared crosslinked with an average size of about 0.1 µm using The following materials:

styrene 21.85 grams

divinylbenzene (55%) 4.85 grams

CTAB 0.13 grams

0.33 gram polymerization initiator

water 100 grams.

The procedure was as provided in the Example 1 above and after separation of the excess monomer by distillation in steam stream, the content of solid of the colloidal suspension and was found to be 7.8%.

A second stage was used:

1 gram perfume

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CTAB 0.3 grams

27 grams dichloromethane.

The perfume was dissolved in the solvent of dichloromethane This was then mixed with the CTAB and 50 grams of the latex prepared as before. Organic layer heavy was dispersed throughout the mixture by stirring and followed by ultrasonic application. This produced a opaque emulsion from which the solvent was removed using a rotary evaporator.

Example 3

A typical conditioning composition contains:

% in weigh Chloride dimethyl- (di-tallow) hardened) -ammonium 5% Polymer latex particles crosslinked according to any of the enough for provide up to 0.4% examples previous of perfume Water demineralized rest up to 100%

A chemical preservative could be included, for example 0.02% by weight of 2-Bromo-2-nitropropane-1,3-diol available under the trademark "Bronopol".

An additional amount of the same perfume, or a different one, used in latex particles in conventional quantities.

To provide additional examples, the dimethyl- (di-tallow) chloride hardened) -ammonium can be partially or totally substituted with propane chloride 1,2- (di-tallow) hardened) oxy-3-trimethyl ammonium or a nonionic oily sugar derivative as described in the previous text under the section of non-ionic compounds.

Example 4

Various polymer latices were prepared crosslinked with perfume incorporated in the latex particles using Methods A and B described above and explained in Examples 1 and 2. The details of these various latices are provided in the following Table 1 in which the percentage of solids indicates the percentage by weight of polymer in the latex aqueous; the percentage of perfume indicates the amount of perfume in weight as a percentage of the total weight of polymer and perfume.

Each latex was used to supply perfume to the fabrics according to the following procedure that used three fabrics, namely 70-30 polyester / cotton, a fabric Acrylic in bulk and a cotton terry towel.

Six examples of each of the three fabrics are washed at 50 ° C using a fragrance-free detergent composition that contained anionic detergent, detergency builder phosphate and other conventional detergent ingredients.

The wash load was rinsed twice with water only and centrifuged dry. At this time the burden of washing was divided into two halves that each contained three pieces of each fabric. One half of the wash load that served as control was cleared using a conditioning composition of the clarified that it contained the same perfume as the one used to prepare the whips. The other half of the wash load was cleared using fragrance-free rinse conditioning composition mixed with an amount of latex calculated to contain the same amount of perfume Each half of the wash load Dry centrifuged, dried on strings, stored for one night and then valued as follows.

The assessment of the intensity of the perfume is carried out by a set of trained advisors to recognize the perfume that valued the intensity of the perfume on a scale from 0-5 that ranged from 0 = no perfume Perceptible up to 5 - extremely strong perfume perceived. The Valuation results were averaged and set forth in Table 1 in which the "Δ intensity" indicates the amount in which the average score of the managers of the valuation exceeded its average score for the witness composition The results are provided in Table 1 next.

The only two examples of styrene monomer United uncrosslinked are comparative.

TABLE 1

Monomers Method % Solids % Fragrance \Delta Intensity Cloth STY B 9.6 twenty 0.9 Curly 0.9 Polycotton 0.6 Acrylic STY / 5% DVB B 6.5 10 0.7 Curly 0.8 Acrylic STY / 10% DVB B 5.3 10 1.7 Curly 0.9 Polycotton 1.2 Acrylic STY TO 12.3 10 0.4 Curly 0.5 Acrylic

From the previous results, shows that the higher the DVB level, the higher the level of crosslinking and greater is the substantivity / intensity of fragrance.

Example 5

Several polymer latices were prepared crosslinked with perfume incorporated into them by method B above, explained in example 2. Details are provided in The following Table 2.

TABLE 2

Latex % Monomers % Solids Fragrance Average particle size (\ mum) I Styrene / DVB 22 twenty 0.10 II Styrene / DVB 10 twenty 0.11 III Styrene / DVB 23.3 10 0.10

These lashes were used to supply perfume cloth, terry towel mixes of polyester-cotton, using a similar procedure of the previous example, or a variant of the procedure in which the pieces of cloth were dried in a drum 70-75 ° C. The rinse conditioner contained 5% by weight of cationic fabric softener (which was chloride of dimethyldiestearyl ammonium). In some experiments the rinse conditioner contained enough latex to provide 0.25% by weight of perfume. In other experiments the amount of latex was half, but compared to a witness who It contained 0.25% perfume. In other experiments the amount of latex was half, but compared to a witness that contained 0.25% by weight of perfume.

The valuation of dry cloth pieces is carried out as in example 4 above, with the exception that the results were expressed as the average of the scores of perfume, and not like? relative to a witness in the tables previous.

The details of these experiments and the Results obtained are provided in the following Table 3.

TABLE 3 Average perfume intensity ratings (scale 0-5) on dry fabrics

Latex nº Perfume level Type of fabric Regime of dried up Average scores in composition to) III 0.25% Curly String 2.2 II 0.25% Curly String 1.9 I 0.25% Curly String 2.0 None (witness scented) 0.25% Curly String 1.1

TABLE 3 (continued)

Latex nº Perfume level Type of fabric Regime of dried up Average scores in composition b) II 0.25% Polycotton String 1.8 I 0.25% Polycotton String 1.6 None (witness scented) 0.25% Polycotton String 1.1 c) III 0.125% Curly String 1.2 I 0.125% Curly String 1.2 None (witness scented) 0.25% Curly String 1.2 III 0.125% Curly Flip 1.8 I 0.125% Curly Flip 1.2 None (witness scented) 0.25% Curly Flip 1.2

The results in the table above show that when the perfume levels are equal (at 0.25%) the intensity of perfume retained on the fabric after drying on twine is greater when the perfume is carried by the particles of polymer.

The experiments in which the latex provided 0.125% perfume achieved a perfume retention that was approximately equal to a witness who will use twice the quantity of perfume without latex.

Example 6

A fabric softener composition was prepared containing 20% by weight propane chloride 1,2-diseboyloxy-3-trimethyl ammonium.

The suspension was a mobile white emulsion.

0.5% by weight of perfume was added to this composition. It thickened to a point where it became a solid still.

The same emulsion was mixed with a latex that was the crosslinked latex I of Example 5. The amount was sufficient. to provide 1% by weight of perfume in the composition. The Emulsion remained very mobile.

The same emulsion was mixed with (1) the same latex in an amount sufficient to provide 0.5% by weight of perfume plus (ii) 0.5% by weight of perfume that was not included in a latex Again the emulsion thickened enormously to a solid still.

Example 7

A linear polymer latex was prepared in presence of perfume as a comparative example (7A). The Materials used were:

acrylate n-butyl 140 g acrylate N, N'-dimethylaminoethyl 4.3 g polyoxyethylene (30) -nonylphenyl ether 38.0 g fragrance 36.1 g initiator polymerization 1.2 g Water deionized 500 ml

The polymerization was carried out in an apparatus similar to that of Example 1. The non-ionic surfactant and the initiator polymerization dissolved in the water that was then degassed, after which it was stirred and heated to 62 ° C. The two acrylate monomers were mixed with the perfume and the solution resulting was added dropwise to the water over a period of 2 hours. The polymerization reaction was allowed to continue for 7 additional hours while the flask contents were stirred at the same temperature of 62 ° C. After this the mixture was distilled thoroughly to separate most of the residual monomer. Latex resulting was then concentrated on a rotary evaporator reducing its volume by approximately 50% and, by doing this, it separated the remaining monomer to provide an odorless latex that It was filtered through glass wool. 503 g of a 37% by weight solids latex an average size of 0.11 µm particles.

A crosslinked polymer latex was prepared using the following materials (Example 7B):

acrylate n-butyl 140 g acrylate N, N'-dimethylaminoethyl 4.3 g ethylene glycol di (acrylate methyl) (EGDMA) 6.0 g bromide of cetyl trimethyl ammonium (CTAB) 30 g initiator of polymerization 1.2 g Water deionized 500 ml

The polymerization was carried out in a manner similar to the previous one. The CTAB dissolved in the water along with the initiator. The three acrylate monomers were mixed together before the addition. The EGDMA was next Functionalized as a crosslinking agent. The latex obtained had a particle size of about 0.1 µm.

36.1 grams of perfume were incorporated into the resulting latex according to the procedure described in the Example 2 above.

Linear and Lattice Latices Above prepared (Examples 7A and 7B respectively) were used to incorporate perfume in a rinse conditioning composition containing 5% by weight of dimethyl chloride distearyl ammonium as in Example 6. The amount of each latex was calculated so that 0.25% of perfume in the rinse conditioning composition, assuming that all the perfume used in the preparation of the latex had been retained in latex. The conditioning compositions of resulting rinses were compared with a composition containing the same fabric softener and 0.25% by weight of perfume without latex.

Test pieces of curl cotton were stirred in 1 liter of water containing 2 grams of Rinse conditioner tested. After stirring for 5 minutes the rags were hand washed, rinsed in a additional liter of running water for two minutes and then they were washed again and dried in strings during one night As in Example 4, a set of advisors punctuated the intensity of the perfume in dry clothes on a scale that extended from

0 = no perceptible perfume, up to

5 = extremely strong perfume perceived.

The results of this comparison and a Subsequent repetition is set out in the following Table 4.

TABLE 4 Comparison of linear polymer beams and crosslinked as perfume carriers

Shows Expt one Expt two Free perfume (witness) 0.5 0.7 Perfume I in cross-linked latex (Example 7B) 1.4 1.2 Perfume on linear latex (Example 7A) 1.0 0.9

As can be seen from the results earlier, the perfume incorporated in the crosslinked latex was more noticeable that in the witness exempt from perfume or perfume Built-in linear latex. These results are Statistically significant at a 95% confidence level.

Using the same test procedure, it was done a comparison between latex III of Example 5, latex above crosslinked based on butyl acrylate (Example 7B) and latex free perfume As before, the amount of each latex added to the rinse conditioning composition it was calculated that introduce 0.25% perfume. Some of the essay clothes They were ironed before the evaluation. The results are exposed in the following Table 5.

TABLE 5

Shows Expt one Expt one Expt two Expt two Ironing Ironing free perfume (witness) 1.0 0.8 0.7 0.6 cross-linked styrene latex (Example 5 III) 2.2 3.1 1.6 2.8 cross-linked butyl acrylate latex (Example 7B) 1.5 1.3 1.3 1.6

As can be seen from this Table, the two crosslinked latices provided an increase in Perceptibility of the perfume supplied to the fabric. This was particularly evident with cross-linked styrene latex after the test clothes had been ironed.

Claims (16)

1. A composition for use in the rinsing of a laundry load, which contains perfumed particles placed or absorbed in or on the particles, characterized in that the particles are formed by a cross-linked organic polymer material and have an average particle size not greater than 1 micrometer, in which there is a cross-linking between at least 0.5% numerical of the total number of monomer residues present in the polymer. 2. A composition according to claim 1, in which the polymer material and the perfume are in a relationship in weight that is in the range of 25: 1 to 2: 1. 3. A composition according to claim 1 or the claim 2, which is a conditioning composition of the clarified that it contains an effective material to soften fabrics. 4. A composition according to claim 3, which contains 0.5 to 90% by weight of fabric softener material and It contains the particles in an amount such that the perfume inside thereof or on them is 0.1 to 10% by weight of the composition. 5. A composition according to any of the previous claims, which is in the form of a liquid aqueous. 6. A composition according to claim 4, which Contains 0.5 to 40% by weight of fabric softener material and It contains the particles in an amount such that the perfume inside thereof or on them is 0.1 to 3% by weight of the composition. 7. A composition according to claim 6, which it is a liquid composition that contains at least 50% by weight of Water. 8. A composition according to any one of the claims 3 to 7, containing at least 12% by weight of the fabric softening material. 9. A composition according to any one of the claims 3 to 8, wherein the fabric softening material is cationic and is an organic compound that contains nitrogen and at minus a hydrocarbon chain of 6 to 50 carbon atoms. 10. A composition according to any one of the claims 3 to 9, containing 0.5 to 90% by weight of fabric softening material that is cationic. 11. A composition according to any one of the claims 3 to 10, wherein the amount of material fabric softener that is cationic is a majority of the material Fabric softener present. 12. A composition according to any one of the previous claims, wherein the particles have the perfume trapped in them. 13. A composition according to any one of the previous claims, which contains additional perfume that is out of the particles, and the amounts of perfume that are and not are included in or on the particles placed in a 10: 1 to 1: 4 weight ratio. 14. A composition according to any one of the previous claims, wherein the particles are composed of an organic polymer with a melting point that It ranges from 100ºC to 220ºC. 15. A method to deal with a load of laundry, which comprises contacting said load of laundry with a composition as defined in any one of claims 1 to 14. 16. A method for preparing a conditioner of clarified, which includes mixing (i) a fabric softener material and (ii) particles of organic polymer material cross-linked in which there is a cross-linking between at least 0.5% number of the total number of monomer residues present in the polymer, and the particles have an average particle size not greater than 1 micrometer and with perfume placed or absorbed within the same or over them.