WO2010003741A1

WO2010003741A1 - Scented laundry softener

Info

Publication number: WO2010003741A1
Application number: PCT/EP2009/056907
Authority: WO
Inventors: Andreas Bauer; Werner Faber; Wolfgang Lahn; Matthias Sunder; Andreas Gerigk; Manuela Materne; Alexandra Klinge; Noelle Wrubbel; Karl-Heinz Scheffler
Original assignee: Henkel Ag & Co. Kgaa
Priority date: 2008-07-09
Filing date: 2009-06-05
Publication date: 2010-01-14
Also published as: DE102008032206A1

Abstract

The invention relates to a scented laundry softener, containing a laundry softening component, and encapsulated scents, and also non-encapsulated scents. Due to a particular selection, particularly of the encapsulated scents, said laundry softener enables surprising scent advantages in the textiles treated within the course of a conventional washing process, particularly with respect to the aspects of pleasant nature, intensity, and lasting nature of the scent impression. For this purpose, the total amount of scented agent contained in the product may even be reduced, while scent advantages may still be achieved in the treated textiles.

Description

Perfumed laundry softener

The present invention relates to a fabric softener which comprises at least one fabric softening component and encapsulated fragrances as well as non-encapsulated fragrances, the encapsulated fragrances being selected in a particular manner. It further relates to a textile treatment process using such a fabric softener and its use for conditioning textile fabrics.

In the textile treatment or washing the consumer pursued in general not only the goal of liberating the laundry for hygienic and visual reasons of soiling, but he also wishes that the textiles may smell good after washing. For this reason, and to mask the inherent odor of the textile treatment agent or detergent, most commercially available textile treatment agents or detergents contain fragrances.

When using conventional textile treatment agents or detergents, however, only a relatively weak fragrance often remains on the laundry after washing. For this reason, and for the care of the textiles, perfumed laundry softeners are additionally used. But the scent of laundry softener is still capable of improvement.

It was therefore an object of the present invention to provide a means which allows the consumer an improved textile scenting in the context of conventional machine textile treatment.

This object is achieved by the subject matter of the invention, namely a fabric softener, which comprises at least one fabric softening component and encapsulated fragrances as well as non-encapsulated fragrances, wherein

(A) less than 20 wt .-%, preferably less than 15 wt .-%, in particular less than 10 wt .-% of the encapsulated fragrances have a ClogP value> 4.0 and a boiling point> 275 ⁰ C, wt. % based on the total amount of encapsulated fragrances,

(B) at least 20 wt .-%, preferably at least 25 wt .-%, in particular at least 30 wt .-% of the encapsulated fragrances have a ClogP value> 4.0 and a boiling point <275 ⁰ C, wt .-% based on the total amount of encapsulated fragrances,

(C) at least 10 wt .-%, preferably at least 15 wt .-%, in particular at least 20 wt .-% of the encapsulated fragrances have a boiling point <25O ⁰ C, preferably <200 ⁰ C, wt .-% based on the total amount the encapsulated fragrances,

(D) at least 20 wt .-%, preferably at least 25 wt .-%, in particular at least 30 wt .-% of the encapsulated fragrances have a ClogP value <3.0, wt .-% based on the total amount of the encapsulated fragrances. It could be found in unexpected ways that the fabric softeners according to the invention after the washing process allow surprising odor advantages (increased favor / higher intensity / better durability) on the treated textiles. Furthermore, corresponding products have good storage stability. The agents according to the invention make it possible to reduce the total amount of perfume contained in the composition while still achieving odor advantages on the treated textiles.

A possible lower limit of the encapsulated perfumes having a ClogP> 4.0 and a boiling point> 275 ⁰ C, for example, may be 0.1 wt .-% or, for example, at 1 wt .-% or, for example, at 2 wt .-% are , Wt .-% based on the total amount of encapsulated fragrances. This means that the fabric softeners for example, 0.1 wt .-% to less than 20 wt .-%, encapsulated perfumes having a ClogP> 4.0 and a boiling point> 275 ⁰ C may contain, wt .-%, based on the total amount of encapsulated fragrances. But it may also be possible that no encapsulated fragrances with a ClogP value> 4.0 and a boiling point> 275 ⁰ C are included in the fabric softener.

Particular preference is given to laundry softeners according to the invention, which are characterized in that the proportion of odoriferous substances which are not encapsulated is between 0.05 and 5.0% by weight, preferably between 0.1 and 3.0% by weight, and the proportion of odoriferous substances which are encapsulated is between 0.05-4.0% by weight, 0.1-2.0% by weight, in each case based on the total composition. This corresponds to a preferred embodiment of the invention, because so particularly appealing odor benefits can be achieved on the treated textiles. It succeeds by the o.g. Selection of encapsulated fragrances a particularly good improvement of Textilbeduftung.

One possible upper limit to the proportion of fragrances that are not encapsulated may be e.g. also at 10 wt .-%, wt .-% based on the total mean. One possible upper limit to the proportion of fragrances contained which are encapsulated may be e.g. also at 10 wt .-%, wt .-% based on the total mean.

The ClogP value is now also well known to the person skilled in the art from the patent literature. It is due to the octanol / water partition coefficient. The octanol / water partition coefficient of a perfume ingredient is the ratio between its equilibrium concentration in octanol and in water. Since the distribution coefficients of the perfume ingredients are often high, e.g. 1000 or higher, they are more conveniently given in the form of their base 10 logarithm, which is referred to as the so-called Iog-P value.

The logP value of numerous fragrances is documented; For example, the Pomona92 database, available from Daylight Chemical Information Systems, Inc., (Daylight CIS), Irvine, California, contains numerous logP values, along with citations to the original literature. However, the logP values on the appropriate calculated by the "CLOGP" program, which is also available from Daylight CIS. This program also lists the experimental logP values if they are available in the Pomona92 database. The "calculated logP" (this is the ClogP value) is determined by the Harsch and Leo fragment approach (see A. Leo, Comprehensive Medicinal Chemistry, Vol. 4, C. Harsch, PG Sammens, JB Taylor and CA Ransden, Eds., P. 295, Pergamon Press, 1990, incorporated herein by reference). The fragment approximation is based on the chemical structure of each of the perfume ingredients, taking into account the numbers and types of atoms, the atomic bonding ability, and the chemical bond. The ClogP values, which are the most reliable and widely used estimates for this physicochemical property, are preferably used in the present invention instead of the experimental logP values in selecting the perfume ingredients to be used in the present invention. If experimental logP is available, it is possible to use the experimental logP value instead of the ClogP value.

The boiling points of many fragrances are e.g. in "Perfume and Flavor Chemicals" (Aroma Chemicals), S. Arctander, published by the author in 1969, incorporated herein by reference. The terms fragrance, perfume and perfume (ol) are to be seen as synonymous in this invention. Other boiling point values may be e.g. from various known chemical manuals and databases. If a boiling point is given only at a different pressure, typically a pressure lower than the normal pressure of 760 mm Hg, the boiling point at normal pressure can be determined approximately using the boiling point pressure nomographs such as those described in "The Chemist's Companion", AJ Gordon and RA Ford, John Wiley & Sons Publishers, 1972, pp. 30-36. Where applicable, boiling point values can also be calculated by computer programs based on molecular structure data such as those described in "Computer Assisted Prediction of Normal Boiling Points of Pyrans and Pynoles", DT Starton et al., J. Chem. Inf Comput. Sci., 32 (1992), pp. 306-316, "Computer Assisted Prediction of Normal Boiling Points of Furans, Tetrahydrofurans, and Thiophenes" (Computer-Aided Prediction of the Normal Boiling Point of Furans, Tetrahydrofurans and Thiophenes), DT Starton et al. , J. Chem. Inf. Comput. Sci., 31 (1992), pp. 301-310, and the references cited therein, and "Predicting Physical Properties from Molecular Structure", R. Murugan et al., Chemtech. June 1994, p. 17-23. All publications mentioned above are incorporated by reference.

In the following, some fragrances are exemplified, which the o.g. Meet criteria regarding boiling point and / or ClogP, but without wishing to limit the invention in the following to these fragrances:

(a) Exemplary fragrances with a ClogP value> 4.0 and a boiling point> 275 ⁰ C.

(b) Exemplary fragrances with a ClogP value> 4 and a boiling point <275 ⁰ C.

(c) Exemplary fragrances having a boiling point <25O ⁰ C.

(d) Exemplary fragrances having a ClogP <3.0

It is possible that individual odoriferous substances meet several of these criteria

(b) ClogP value> 4.0 and boiling point <275 ⁰ C

(c) Boiling point <25O ⁰ C

(d) satisfy ClogP <3.0. An example is octylaldehyde with a boiling point of 167 ⁰ C and a ClogP of 2.95. This fulfills both criterion (c) and criterion (d). If, therefore, merely to give an example here, the encapsulated material composition contains, for example, 1% by weight of octylaldehyde,% by weight, based on the total amount of the encapsulated fragrances, then at least 19% by weight would have to be fulfilled in order to meet the abovementioned criteria. % of other fragrances with a ClogP value less than 3.0 necessary, and also at least 9 wt .-% of other fragrances having a boiling point <25O ⁰ C.

For the purposes of the invention, encapsulated fragrances are preferably fragrances which are encapsulated in microcapsules.

The microcapsules which can be used according to the invention may preferably be water-soluble and / or water-insoluble microcapsules. Preferably, however, they are water-insoluble microcapsules. The water insolubility of the microcapsules has the advantage that this allows a washing application lasting outward separation of active ingredients can be made, and that an active ingredient release can be made only after the washing application.

In particular, it is preferred that the microcapsules usable according to the invention are water-insoluble microcapsules, the wall material of the microcapsules being polyurethanes, polyolefins, polyamides, polyesters, polysaccharides, epoxy resins, silicone resins and / or polycondensation products of carbonyl compounds and compounds containing NH groups includes. In particular, the water-insoluble microcapsules are drivable.

The term drivable microcapsules means such microcapsules, which by mechanical rubbing or by pressure, such as when drying hands with a towel, can be opened or wiped so that a release of content only as a result of mechanical action results, for example with a towel on which such microcapsules are deposited, dries hands. Preferably, microcapsules which can be used according to the invention have average diameters in the range from 0.05 to 500 μm, preferably between 5 and 150 μm, in particular between 10 and 100 μm, e.g. 10-80 μm. The shell of the microcapsules surrounding the core or (filled) cavity has an average thickness in the range between advantageously about 0.01 and 50 μm, preferably between about 0.1 μm and about 30 μm, in particular between about 0.5 μm and about 8 μm.

In particular, microcapsules, which have the aforementioned diameter and shell thickness, are drivable in the context of the invention.

The procedure in microcapsule preparation as such is well known to those skilled in the art. Suitable methods for producing microcapsules are familiar to the person skilled in the art and are described, for example, in US Pat. No. 3,870,552, in US Pat. No. 3,516,941, in US Pat. No. 3,415,758 or also in EP 0 026 914 A1. The latter describes for example, microcapsule preparation by acid-induced condensation of melamine-formaldehyde precondensates and / or their C1-C4 alkyl ethers in water in which the hydrophobic material forming the capsule core is dispersed, in the presence of a protective colloid.

For example, melamine-urea-formaldehyde microcapsules or melamine-formaldehyde microcapsules or urea-formaldehyde microcapsules, e.g. available from 3M Corporation or BASF.

Suitable microcapsules are e.g. also described in WO 2001/049817 A2.

It has been found that the water-insoluble microcapsules usable according to the invention, in particular the e.g. Aminoplast capsules, apply very well to the treated textile. After the washing process, these capsules then usually have a certain brittleness, so that a targeted release of fragrance from the capsule can take place by the action of mechanical force, e.g. while rubbing the skin with a towel, which has been washed with a corresponding fabric softener. In this way, even after prolonged storage of the laundry targeted a fragrance can be caused. The consumer is enabled to produce specific fragrances.

In a preferred embodiment of the invention, the encapsulated perfume oil contained in the fabric softener according to the invention contains less than 15% by weight, preferably less than 10% by weight, in particular less than 5% by weight, e.g. 0.1-4% by weight, solvent. We have surprisingly found that this limitation of the solvent in the perfume capsules contributes to improved stability of the capsules, both as regards the capsule in the fabric softener and to the stability of the capsule deposited on the laundry. In addition, the quality of the scent impression after opening the capsule is improved, both in terms of intensity and taste of the fragrance impression. It is very particularly preferred if the perfume contained in the capsule contains less than 3% by weight, better still less than 1% by weight of solvent, in particular is solvent-free. Then one obtains the best results with regard to the stability of the capsules in the fabric softener as well as the stability of the capsule deposited on the laundry. Likewise, the textile scenting is improved the most.

When the laundry softener according to the invention contains skin care ingredients such as silicone oil, almond oil, green tea extract or aloe vera preparations, vitamin E, D-panthenol, plankton extract, vitamin C, urea and / or glycine, especially in microencapsulated Form (preferably water-insoluble microcapsules), so there is also a preferred embodiment of the invention. For example, (preferably water-insoluble) microcapsules can be used which contain both fragrances and ingredients for the care of the skin. In this way, a targeted equipment of textiles with capsule systems, which can use the consumer for active skin care. For example, a towel may be provided in this way, which gives off the skin-care substances during drying of the skin.

If skin care substances (preferably as active substances in the microcapsules) are used, they thus preferably exert their effect indirectly via the treated textile, which further transfers the skin care substance to the skin upon contact with the skin, from which the skin can then derive a cosmetic benefit.

The optional skin care fabric is preferably hydrophobic, may be liquid or solid. As a skin care material, for example, a) waxes such as carnauba, spermaceti, beeswax, lanolin, derivatives thereof and mixtures thereof; b) Plant extracts, for example vegetable oils such as avocado oil, olive oil, palm oil, palm kernel oil, rapeseed oil, linseed oil, soybean oil, peanut oil, coriander oil, castor oil, poppy seed oil, cocoa oil, coconut oil, pumpkin seed oil, wheat germ oil, sesame oil, sunflower oil, almond oil, macadamia nut oil, apricot kernel oil , Hazelnut oil, jojoba oil, canola oil and mixtures thereof; c) higher fatty acids such as lauric acid, myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, linoleic acid, linolenic acid, isostearic acid or polyunsaturated fatty acids; d) higher fatty alcohols, such as lauryl alcohol, cetyl alcohol, stearyl alcohol, oleyl alcohol, behenyl alcohol or 2-hexadecanol, e) esters, such as cetyl octanoate, lauryl lactate, myristyl lactate, cetyl lactate, isopropyl myristate, myristyl myristate, isopropyl palmitate, isopropyl adipate, butyl stearate, decyl oleate, cholesterol isostearate, glycerol monostearate, glycerol distearate , Glycerol tristearate, alkyl lactate, alkyl citrate or alkyl tartrate; f) hydrocarbons such as paraffins, mineral oils, squalane or squalene; g) lipids; h) vitamins such as vitamins A, C and E or vitamin alkyl esters; i) phospholipids; j) sunscreens such as octyl methoxyl cinnamate and butyl methoxybenzoyl methane; k) silicone oils such as linear or cyclic polydimethylsiloxanes, amino-, alkyl-, alkylaryl- or aryl-substituted silicone oils and I) mixtures thereof.

The optional skin-care active ingredients can be applied to the textile during textile treatment and then transferred from the textile to the skin when the textile comes into contact with the skin, eg while wearing clothing. In this way, skin-care active ingredients in the fabric softeners according to the invention are beneficial to the skin of the consumer. When using laundry softeners according to the invention, which optionally contain skin-care active ingredients, in a manual textile treatment process, the skin care active ingredients of the skin of the consumer are directly to the advantage, namely upon contact of the hand with the wash liquor. However, the use of skin-care active ingredients is purely optional.

Particularly preferred is the use of a combination of fragrances with textile care agents (such as silicone oil) and / or with skin care agents (such as almond oil, etc.) in the invention (preferably water-insoluble) microcapsules.

The (preferably water-insoluble) microcapsules may therefore also comprise textile care substances in the core, in order to thus make it possible to provide fabric softeners with particularly good textile-care properties. An inventively usable (preferably water-insoluble) microcapsule may advantageously comprise textile softening clays as a textile care fabric. Since textile-softening clays also have a water-softening effect, limescale deposits on the laundry are additionally prevented.

As a fabric softening clay, for example, smectite clay is suitable. Preferred smectite clays are beidellite clays, hectorite clays, laponite clays, montmorillonite clays, nontronite clays, saponite clays, sauconite clays, and mixtures thereof. Montmorillonite clays are the preferred softening clays. Bentonites contain mainly montmorillonites and can serve as a preferred source of fabric softening clay.

Suitable bentonites are marketed, for example, under the names Laundrosil® by Süd-Chemie or under the name Detercal by Laviosa.

The amount of fabric softening clay in the (preferably water-insoluble) microcapsule usable in the present invention may be e.g. between 0.1 and 10 wt .-% and preferably 1 to 5 wt .-%, based on the capsule contents. According to another embodiment, the microcapsules (preferably water-insoluble) which can be used according to the invention contain no textile softening clay at all or only a very small amount, e.g. <0.1 wt .-%, based on the capsule contents.

A textile care fabric which can be used in particular in combination with the fabric softening clay but also independently of this, in particular in the invention (preferably water-insoluble) microcapsules, is an organic fatty acid plasticizer. The organic plasticizer may consist of anionic, cationic or nonionic fatty chains (C10-C22, preferably C12-C18). Anionic softeners include fatty acid soaps. Preferred organic plasticizers are nonionic compounds, such as fatty acid esters, ethoxylated Fatty acid esters, fatty alcohols and polyol polymers. The organic plasticizer is most preferably a higher fatty acid ester of a pentaerythritol compound, the term used in this specification to describe higher fatty acid esters of pentaerythritol, higher fatty acid esters of pen-taerythritol oligomers, higher fatty acid esters of lower alkylene oxide derivatives of pentaerythritol, and higher fatty acid esters of lower alkylene oxide derivatives of pentaerythritol oligomers ,

A (preferably water-insoluble) microcapsule which can be used according to the invention may contain, for example, a textile-softening polymer, in particular a polysiloxane and / or a cationic polymer, as possible textile care substance. Suitable cationic polymers include, in particular, those described in "CTFA International Cosmetic Ingredient Dictionary", Fourth Edition, JM Nikitakis, et al, Editors, published by the Cosmetic, Toiletry, and Fragrance Association, 1991 and grouped under the collective name "Polyquaternium" Some suitable polyquaternium compounds are listed in more detail below: The cationic polymers have a textile-softening, thus textile-apple-forming effect, and in addition they can make a skin-care contribution.

A (preferably water-insoluble) microcapsule which can be used according to the invention may also comprise further suitable textile-care compounds, preferably e.g. Fluorescent agents, anti-doping agents, optical brighteners, grayness inhibitors, anti-shrinkage agents, anti-crease agents, color transfer inhibitors, antimicrobial agents, germicides, fungicides, antioxidants, antistatic agents, ironing auxiliaries, UV absorbers, repellents, impregnating agents.

The use of perfume precursors in the compositions according to the invention is likewise very advantageous, preferably if they are present in the (preferably water-insoluble) microcapsule which can be used according to the invention. A perfume precursor is a compound which releases a desired odor and / or perfume molecule by the breaking of a chemical bond, for example by hydrolysis. Typically, to form a perfume precursor, a desired perfume raw material is chemically combined with a carrier, preferably a slightly volatile or moderately volatile carrier. The combination results in a less volatile and more hydrophobic perfume precursor with improved attachment to fabrics. The perfume is then released by breaking the bond between the perfume raw material and the carrier, for example, by a change in pH (eg, by perspiration upon wear), humidity, heat and / or sunlight during storage or drying on the skin Clothes line.

The perfume raw material for use in perfume precursors are typically saturated or unsaturated volatile compounds containing an alcohol, an aldehyde and / or a ketone group. Fragrance raw materials useful herein include any fragrant substances or mixtures of substances. Particular advantageous, inventively employable perfume precursors obey the formula

in which R is hydrogen, linear C 1 -C 8 -alkyl, branched C 3 -C 20 -alkyl, cyclic C 3 -C 20 -alkyl, branched cyclic C 6 -C 20 -alkyl, linear C 6 -C 20 -alkenyl, branched C 6 -C 20 -alkenyl, cyclic C6- C20 alkenyl, branched cyclic C6-C20 alkenyl, substituted or unsubstituted C6-C20 aryl, and mixtures thereof; R ¹ , R ² and R ^{3 are} independently linear, branched or substituted C ¹ -C 20 alkyl; linear, branched or substituted C 2 -C 20 alkenyl; substituted or unsubstituted C3-C20 cyclic alkyl; substituted or unsubstituted C 6 -C 20 aryl, substituted or unsubstituted C 2 -C 40 alkyleneoxy; substituted or unsubstituted C3-C40 alkyleneoxyalkyl; substituted or unsubstituted C6-C40 alkylenearyl; substituted or unsubstituted C6-C32 aryloxy; substituted or unsubstituted C6-C40 alkyleneoxyaryl; C6-C40 oxyalkylene-enaryl and mixtures thereof. The use of such substances, in particular in the invention (preferably water-insoluble) microcapsules, corresponds to a preferred embodiment of the invention.

A preferred embodiment is when the inventively employable fragrance precursor releases compounds, obeying the formula

wherein R is hydrogen, methyl, ethyl, phenyl and mixtures thereof; R ^{1 is} selected from the group consisting of 4- (1-methylethyl) cyclohexanemethyl, 2,4-dimethyl-3-cyclohexen-1-ylmethyl, 2,4-dimethylcyclo-hex-1-ylmethyl, 2,4,6 Trimethyl 3-cyclohexen-1-ylmethyl, 2-phenylethyl, 1- (4-isopropylcyclohexyl) ethyl, 2,2-dimethyl-3- (3-methylphenyl) propan-1-yl, 3-phenyl-2-propene 1-yl, 2-methyl-4- (2,2,3-trimethyl-3-cyclopent-1-yl) -2-buten-1-yl, 3-methyl-5-phenyl-pentan-1-yl , 3-Methyl-5- (2,2,3-trimethyl-3-cyclopenten-1-yl) -4-penten-2-yl, 2-methyl-4-phenylpentan-1-yl, cis-3 -Hexen-1-yl, 3,7-dimethyl-6-octen-1-yl, 3,7-dimethyl-2,6-octadien-1-yl, 7-methoxy-3,7-dimethyloctane-2 -yl, 6,8-dimethylnonan-2-yl, cis -6-nonen-1-yl, 2,6-nonadien-1-yl, 4-methyl-3-decen-5-yl, benzyl, 2-methoxy -4- (1-propenyl) phenyl, 2-methoxy-4- (2-propenyl) phenyl and mixtures thereof. The use of such substances, in particular in the invention (preferably water-insoluble) microcapsules, corresponds to a preferred embodiment of the invention.

Further particularly advantageous perfume precursors which can be used according to the invention are acetals or ketals, preferably obeying the formula

wherein R is linear C 1 -C 20 -alkyl, branched C 3 -C 20 -alkyl, cyclic C 6 -C 20 -alkyl, branched cyclic C 6 -C 20 -alkyl, linear C 2 -C 20 -alkenyl, branched C 3 -C 20 -alkenyl, cyclic C 6 -C 20- Alkenyl, branched cyclic C6-C20 alkenyl, substituted or unsubstituted C6-C20 aryl, and mixtures thereof; R ¹ is hydrogen or R; R ² and R ^{3 are} each independently selected from the group consisting of linear C 1 -C 20 -alkyl, branched C ³ -C 20 -alkyl, cyclic C ³ -C 20 -alkyl, branched cyclic C 6 -C 20 -alkyl, linear C 6 -alkyl C20 alkenyl, branched C6-C20 alkenyl, cyclic C6-C20 alkenyl, branched cyclic C6-C20-AI-kenyl, C6-C20 aryl, substituted C7-C20 aryl, and mixtures thereof. The use of such substances, in particular in the invention (preferably water-insoluble) microcapsules, corresponds to a preferred embodiment of the invention.

Further particularly advantageous, usable according to invention perfume precursors obey the formula

wherein R ¹ , R ² , R ³ and R ^{4 are} independently linear, branched or substituted C ¹ -C 20 -alkyl; linear, branched or substituted C2-C20 alkenyl; substituted or unsubstituted cyclic C5-C20-alkyl; substituted or unsubstituted C 6 -C 20 aryl, substituted or unsubstituted C 2 -C 40 alkyleneoxy; substituted or unsubstituted C3-C40 alkyleneoxyalkyl; substituted or unsubstituted C6-C40-alkylarylene; substituted or unsubstituted C6-C32 aryloxy; substituted or unsubstituted C6-C40 alkylene-oxyaryl; C6-C40 oxyalkylenearyl; and mixtures thereof. The use of such substances, in particular in the invention (preferably water-insoluble) microcapsules, corresponds to a preferred embodiment of the invention.

It is particularly preferred if the fragrances used comprise silicic acid ester mixtures which are silicic acid esters of the formulas

OR

RO-Si-O _m O-Si-OR

OR

(i) and

contain, wherein all R are independently selected from the group containing H, the straight-chain or branched, saturated or unsaturated, substituted or unsubstituted C 1-6 hydrocarbon radicals and the perfume alcohol residues and / or Bizidalkoholreste, and m values from the range 1 to 20 and n takes values from the range 2 to 100. Preferably, the silicic acid esters of the formulas (I) and (II) each contain at least one perfume alcohol residue and / or biocide alcohol residue.

The silicic acid ester mixtures can be used in particular in the invention (preferably water-insoluble) microcapsules used. It has surprisingly been found that the presence of the silicic acid ester mixtures leads to the fact that the fragrance impression, caused by the mechanical opening of the cupola noticeably, as far as pleasure and intensity, can be improved. The fragrance impression is not just qualitative, i. As far as pleasing, better, but also lasts longer.

If the silicic acid ester mixtures in the microcapsules preferably make up at least 2% by weight of the total encapsulated amount of fragrance,% by weight, based on the amount of the encapsulated fragrances, then a preferred embodiment of the invention is present.

It also corresponds to a preferred embodiment of the invention, when the non-encapsulated fragrances comprise silicic acid ester mixtures, as described above, wherein the silicic acid ester mixtures preferably account for at least 5 wt .-% of the non-encapsulated fragrance amount, wt .-% based on the amount of non-encapsulated fragrances.

Also in this case, it has been found that the presence of the silicic acid esters results in that the overall odor impression when rubbing the capsules both in terms of quality and longevity is further improved.

Particularly suitable perfume precursors are reaction products of compounds comprising at least one primary and / or secondary amine group, for example, an amino-functional polymer, especially an amino-functional silicone, and a perfume ingredient selected from ketone, aldehyde, and mixtures thereof. The use of such substances, in particular in the invention (preferably water-insoluble) microcapsules, corresponds to a preferred embodiment of the invention. In a preferred embodiment of the invention, the non-encapsulated fragrances which are contained in the agent according to the invention fulfill certain criteria, namely that

(A) more than 20 wt .-%, preferably more than 25 wt .-% of the non-encapsulated fragrances have a ClogP value of at least 4.0 and a boiling point> 275 ⁰ C, wt .-% based on the total amount of non-encapsulated fragrances,

(B) less than 20 wt .-%, preferably less than 15 wt .-% of the non-encapsulated fragrances have a ClogP value of at least 4.0 and a boiling point <275 ⁰ C, wt .-% based on the total amount of non-encapsulated fragrances,

(C) at least 15 wt .-%, preferably at least 20 wt .-%, in particular at least 25 wt .-% of the non-encapsulated fragrances have a boiling point <25O ⁰ C, preferably <200 ⁰ C, wt .-% based on the Total amount of non-encapsulated fragrances,

(D) less than 30 wt .-%, preferably less than 25 wt .-%, in particular less than 20 wt .-% of the non-encapsulated fragrances have a ClogP value less than 3.0, wt .-% based on the total amount the non-encapsulated fragrances.

A possible lower limit of the non-encapsulated perfumes having a ClogP value of at least 4.0 and a boiling point of <275 ⁰ C, for example, can be from 0.1 wt .-%, or 1 wt .-% are, wt .-% based on the Total amount of non-encapsulated fragrances. It is possible for example that non-encapsulated perfumes having a ClogP value of at least 4.0 and a boiling point of <275 ⁰ C are contained in amounts of, for example, 0.1 wt .-% to less than 20 wt .-%, wt .-% based on the total amount of non-encapsulated fragrances, which is contained in the agent according to the invention.

A possible lower limit for the non-encapsulated fragrances with a ClogP value less than 3.0 may be e.g. at 0.1 wt .-% or 1 wt .-%, wt .-% based on the total amount of non-encapsulated fragrances. It is thus e.g. possible that unencapsulated fragrances with a ClogP value less than 3.0 in amounts of e.g. 0.1 wt .-% to less than 20 wt .-%, wt .-% based on the total amount of non-encapsulated fragrances, which is included in the inventive composition.

Exemplary fragrances with a ClogP value of at least 4.0 and a boiling point> 275 ⁰ C have already been exemplified above. Exemplary fragrances with a ClogP of at least 4.0 and a boiling point <275 ⁰ C were already exemplified hereinabove. Exemplary fragrances having a boiling point <25O ⁰ C have already been exemplified above. Exemplary fragrances with a ClogP value of less than 3.0 have already been listed above as an example.

The above-mentioned embodiment leads to a particularly good and further improved fragrance effect in the context of the invention, in particular as regards the criteria of pleasure, intensity and durability of the fragrance impression on the treated textiles. It is furthermore particularly preferred that the amount of water in said softener is> 25% by weight, preferably> 50% by weight, more preferably> 60% by weight and in particular> 70% by weight.

The fabric softeners according to the invention contain as compulsory component a fabric softening component, in particular cationic surfactant. Cationic surfactants are known to the person skilled in the art. These are surface-active compounds, usually from an optionally substituted hydrocarbon skeleton, with one or more cationic (positively charged) groups which preferentially dissociate in aqueous solution, advantageously adsorb at interfaces, and preferably positively charged above the critical micelle concentration Aggregate micelles. Known examples of cationic surfactants are in particular quaternary ammonium compounds having one or two hydrophobic alkyl radicals. In the case of cationic surfactants having two hydrophobic groups which are linked via ester bonds with a quaternized di (tri) ethanolamine or an analogous compound, one speaks of esterquats. These are particularly preferred according to the invention. Other examples of cationic surfactants are e.g. quaternary phosphonium salts, tertiary sulfonium salts, imidazolinium salts or N-alkylpyridinium salts. Cationic surfactants can also be obtained by protonation of primary fatty amines or fatty amine N-oxides. However, quaternary ammonium compounds such as monoalk (en) yltrimethylammonium compounds, dialk (en) yl-dimethylammonium compounds, mono-, di- or triesters of fatty acids with alkanolamines are preferred according to the invention. Particularly preferred cationic surfactants are alkylated quaternary ammonium compounds, of which at least one alkyl chain is interrupted by an ester group and / or amido group. Very particularly preferred are N-methyl-N- (2-hydroxyethyl) -N, N- (ditalgacyloxyethyl) ammonium methosulfate or bis (palmitoyloxyethyl) hydroxyethyl-methyl-ammonium methosulfate. According to a preferred embodiment of the invention, a laundry softener according to the invention contains as laundry softening component a cationic surfactant, preferably a quaternary ammonium compound, in particular esterquat, preferably in amounts of> 0.1% by weight, advantageously 1 to 40% by weight, in particular 3 to 30 wt .-%, wt .-% based on the total fabric softener. Useful upper limits for the amount of the fabric softening component used, preferably the cationic surfactant, may also be 25% by weight, 20% by weight, 15% by weight or 10% by weight. Useful lower limits for the amount of the laundry softening component used, preferably of the cationic surfactant, may also be 4% by weight, 5% by weight or 10% by weight, in each case based on the total fabric softening point.

Another object of the invention is a textile treatment process in which the textile to be treated is subjected to a textile treatment using a fabric softener according to the invention (as described above), in particular in an automatic washing machine. Another object of the invention is the use of a fabric softener according to the invention (as described above) for conditioning textile fabrics.

Also useful as cationic surfactants are polyquaternized polymers (e.g., Luviquat® Care from BASF) and also chitin-based cationic biopolymers and their derivatives, for example, the polymer available under the trade name Chitosan® (manufacturer: Cognis).

Also usable cationic surfactants are compounds of the formula (VI),

R ¹⁷ can be an aliphatic alk (en) yl radical having 12 to 22 carbon atoms with 0, 1, 2 or 3 double bonds, s can assume values between 0 and 5. R ¹⁸ and R ¹⁹ are each independently H, C-ι_ ₄ alkyl or hydroxyalkyl and X ^" is an anion.

Other suitable cationic surfactants include protonated or quaternized polyamines.

Furthermore, it is preferred for the purposes of the present invention if the agent contains an emulsifier, preferably a nonionic surfactant, in particular comprising alkoxylated fatty alcohol and / or alkyl glycoside. It can also be used fatty acids, such as. e.g. Stearic acid, as well as glycerol esters of fatty acids, e.g. Glycerol monostearate, fatty alcohols and / or fatty amine ethoxylates, advantageously in amounts of from 0 to 8% by weight, e.g. > 0.01 wt .-%, in particular 0.1 to 5 wt .-%, based on the total agent.

According to a preferred embodiment, the laundry softener according to the invention contains a) encapsulated fragrances, as described above b) laundry softening component, preferably cationic surfactant, preferably such as described above, especially in amounts as described above c) non-encapsulated fragrances, preferably in amounts> 0.01 Wt .-%, advantageously 0.05 to 10 wt .-%, in particular 0.1 to 5 wt .-%, d) optionally water, preferably in amounts> 50 wt .-%, advantageously> 60 wt .-%, in particular> 70% by weight e) optionally solvents, such as preferably monohydric alcohols, in particular 2-propanol, advantageously in amounts of 0.05 to 5% by weight, preferably 0.1 to 4% by weight, in particular 0, 3 - 3 wt .-%, f) optionally emulsifiers, such as preferably nonionic surfactants, advantageously in amounts of 0 to 8 wt .-%, in particular 0.1 to 5 wt .-% g) optionally pH adjusting agent, preferably 0.01 to 5 wt .-%, in particular 0.02 to 1 wt .-% h) optionally electrolytes, preferably from the group of inorganic salts, advantageously MgCl ₂ or NaCl, 0.01 to 5% by weight, in particular 0.05 to 2% by weight, i) optionally skin-care active substances, preferably in an amount of 0 to 15% by weight, advantageously 0.1 to 10% by weight, in particular 0 , 5 to 5 wt .-%, j) optionally thickener, for example based on polyacrylate, preferably in amounts of 0.01 to 3 wt .-%, in particular 0.1 to 1 wt .-%,

% By weight, based in each case on the entire fabric softener.

Thickeners, electrolytes, pH adjusters, solvents and / or nonionic surfactants which can preferably be used in a fabric softener according to the invention according to the above embodiment are optionally described further below.

The fabric softeners may also preferably contain nonionic softening components, especially polyoxyalkylene glycol alkanoates, polybutylenes, long chain fatty acids, ethoxylated fatty acid ethanolamides, alkyl polyglucosides, especially sorbitan mono, di- and triesters, and fatty acid esters of polycarboxylic acids.

As optional nonionic surfactants it is possible to use preferably alkoxylated, advantageously ethoxylated, in particular primary, alcohols having preferably 8 to 18 carbon atoms and on average 1 to 12 moles of ethylene oxide (EO) per mole of alcohol in which the alcohol residue is linear or preferably methyl-branched in the 2-position may be or contain linear and methyl-branched radicals in the mixture, as they are usually present in Oxoalkoholresten. In particular, however, alcohol ethoxylates with linear radicals of alcohols of native origin having 12 to 18 carbon atoms, for example of coconut, palm, tallow or oleyl alcohol, and on average 2 to 8 EO per mole of alcohol are preferred. The preferred ethoxylated alcohols include, for example, C12-14 alcohols with 3 EO, 4 EO or 7 EO, C9-11 alcohol with 7 EO, C13-15 alcohols with 3 EO, 5 EO, 7 EO or 8 EO, C12 Alcohols with 3 EO, 5 EO or 7 EO and mixtures of these, such as mixtures of C12-14 alcohol with 3 EO and C12-18 alcohol with 7 EO. The degrees of ethoxylation given represent statistical means which, for a particular product, may be an integer or a fractional number. Preferred alcohol ethoxylates have a narrow homolog distribution (narrow rank ethoxylates, NRE). In addition to these nonionic surfactants, fatty alcohols with more than 12 EO can also be used. Examples of these are tallow fatty alcohol with 14 EO, 25 EO, 30 EO or 40 EO. Nonionic surfactants containing EO and PO groups together in the molecule can also be used according to the invention. Here, block copolymers with EO-PO block units or PO-EO block units can be used, but also EO-PO-EO copolymers or PO-EO-PO copolymers. Of course, it is also possible to use mixed alkoxylated nonionic surfactants in which EO and PO units are not distributed in blocks, but randomly. Such products are available by the simultaneous action of ethylene and propylene oxide on fatty alcohols. In addition, as further optional nonionic surfactants it is also possible to use alkyl glycosides of the general formula R 0 (G) x in which R is a primary straight-chain or methyl-substituted branched, in particular in the 2-position methyl-branched aliphatic radical having 8 to 22, preferably 12 to 18 carbon atoms and G is the symbol which represents a glycose unit having 5 or 6 C-atoms, preferably glucose. The degree of oligomerization x, which indicates the distribution of monoglycosides and oligoglycosides, is any number between 1 and 10; preferably x is 1, 2 to 1, 4. Alkyl glycosides are known, mild surfactants and are therefore preferably used in the surfactant mixture. The nonionic surfactants may be present in the fabric softeners according to the invention preferably in amounts of 0-8 wt .-%, for example in amounts> 0.1 wt .-%. However, it is also possible that these may contain, for example, 2 to 30% by weight, preferably 7 to 20% by weight and in particular 9 to 15% by weight of nonionic surfactant, in each case based on the total fabric softener. This is less preferred.

The textile treatment compositions according to the invention may contain, in addition to the obligatory constituents (fabric softening component and encapsulated fragrances as well as non-encapsulated fragrances), further optional ingredients. These are z.T. described in more detail.

An inventive laundry softener may optionally also comprise anionic surfactant, e.g. in amounts> 0.1% by weight. However, it is more preferable if a laundry softener according to the invention is free from anionic surfactant, ie comprises less than 5% by weight, 2% by weight or 1% by weight of anionic surfactant, but in particular 0% by weight of anionic surfactant, Wt .-% based on the total fabric softener. The use of amphoteric surfactants comprising ampholytes and betaines is also possible, e.g. in amounts> 0.01% by weight, based on the total fabric softener. The use of gemini surfactants is also possible, e.g. in amounts> 0.01% by weight, based on the total fabric softener.

In addition to the fabric softening component and the fragrances and encapsulated fragrances, the laundry softeners according to the invention may optionally contain further ingredients, in particular those optional ingredients which further improve the performance and / or aesthetic properties of the fabric softener. In the context of the present invention, preferred laundry softeners additionally contain one or more substances from the group of builders, bleaches, bleach activators, enzymes, electrolyte, humectants, nonaqueous solvents, pH adjusters, perfume carriers, fluorescers, dyes, hydrotopes, foam inhibitors, silicone oils, antiredeposition agents , optical brighteners, grayness inhibitors, shrinkage inhibitors, anti-crease agents, color transfer inhibitors, antimicrobial agents, germicides, fungicides, antioxidants, preservatives, corrosion inhibitors, antistatic agents, bittering agents, ironing aids, repellents and impregnating agents, swelling and anti-slip agents, neutral filler salts and possibly UV absorbers. As builders, which may be optionally included in the fabric softeners, for example in amounts> 0.1 wt .-%, for example, silicates, aluminum silicates (especially zeolites), carbonates, salts of organic di- and polycarboxylic acids and mixtures of these substances may be mentioned. Organic builders which may optionally be present in the fabric softener, eg in amounts> 0.1% by weight, include polycarboxylate polymers such as polyacrylates and acrylic acid / maleic acid copolymers, polyaspartates and monomeric polycarboxylates such as citrates, gluconates, succinates or malonates, which are preferred be used as sodium salts. If builders are to be used then organic builders are to be preferred.

A laundry softener according to the invention may optionally contain a thickening agent, e.g. in amounts> 0.01% by weight. This corresponds to a preferred embodiment of the invention. The thickener may include, for example, a polyacrylate thickener, xanthan gum, gellan gum, guar gum, alginate, carrageenan, carboxymethyl cellulose, bentonites, wellan gum, locust bean gum, agar-agar, tragacanth, gum arabic, pectins, polyoses, starch, dextrins, gelatin and casein include. However, modified natural substances such as modified starches and celluloses, examples which may be mentioned here include carboxymethylcellulose and other cellulose ethers, hydroxyethyl and -propylcellulose and core flour ethers, can be used as thickeners. Preferred laundry softeners according to the invention can advantageously contain from 0.01 to 3% by weight, and preferably from 0.1 to 1% by weight, of thickening agent, based on the total fabric softener. The amount of optionally usable thickener is dependent on the type of thickener and the desired degree of thickening.

As electrolytes from the group of inorganic salts, a wide number of different salts can be used. Preferred cations are the alkali and alkaline earth metals, preferred anions are the halides and sulfates. From a manufacturing point of view, the use of NaCl or MgCl ₂ in the fabric softeners is preferred. The optional proportion of electrolytes in the fabric softener may, for example, usually be from 0.01 to 5% by weight.

Non-aqueous solvents which can be used optionally in the fabric softeners according to the invention originate, for example, from the group of monohydric or polyhydric alcohols, alkanolamines or glycol ethers. Preferably, the solvents are selected from ethanol, n- or i-propanol, butanols, glycol, propane or butanediol, glycerol, diglycol, propyl or butyldiglycol, hexylene glycol, ethylene glycol methyl ether, ethylene glycol ethyl ether, ethylene glycol propyl ether, ethylene glycol mono-n-butyl ether, diethylene glycol methyl ether, diethylene glycol ethyl ether , Propylene glycol methyl, ethyl or propyl ether, dipropylene glycol monomethyl or ethyl ether, diisobutyl propylene glycol monomethyl or ethyl ether, methoxy, ethoxy or butoxy triglycol, 1-butoxyethoxy-2-propanol, 3-methyl-3-methoxybutanol, propylene glycol t-butyl ether and mixtures of these solvents. Non-aqueous solvents may preferably be used in the laundry softeners according to the invention in amounts of between 0.5 and 15% by weight, but preferably below 12% by weight and in particular below 9% by weight.

The viscosity of the fabric softeners according to the invention can be measured using standard methods (e.g., Brookfield viscometer LVT-II at 20 spindle 3 U / min and 2O ⁰ C,) to be measured and is preferably 20 to 4000 mPas wherein between 40 and 2000 mPas are particularly preferred, , The viscosity of fabric softeners is particularly preferably in the range from 40 to 1000 mPas.

In order to bring the pH of the fabric softener according to the invention in the desired range, the use of pH adjusting agents may be indicated. Can be used here are all known acids or alkalis, unless their use is not for technical application or environmental reasons or for reasons of consumer protection prohibited. Usually, the amount of these adjusting agents does not exceed 7% by weight or preferably 5% by weight of the total formulation. A lower limit may e.g. at 0.1 wt .-% are. The pH of the laundry softener according to the invention is preferably between 1 and 6 and preferably between 1, 5 and 3.5.

The preparation of the laundry softener according to the invention can be carried out according to all techniques known to those skilled in the art for the production of liquid laundry softeners. This can be done for example by mixing the raw materials, optionally using high-shear mixing equipment. It is recommended to melt the softening component (s) and then to disperse the melt in a solvent, preferably water. The other ingredients including e.g. The encapsulated perfume can be integrated into the fabric softener simply by adding it to it.

Claims

claims:

1. fabric softener, comprising at least one fabric softening component and encapsulated fragrances and non-encapsulated fragrances, wherein

(D) at least 20 wt .-%, preferably at least 25 wt .-%, in particular at least 30 wt .-% of the encapsulated fragrances have a ClogP value <3.0, wt .-% based on the total amount of the encapsulated fragrances.

2. Composition according to claim 1, characterized in that the proportion of the fragrances contained, which are not encapsulated, between 0.05 to 5.0 wt .-%, preferably 0.1 to 3.0 wt .-% and the Proportion of the fragrances which are encapsulated, between 0.05 to 4.0 wt .-%, 0.1 to 2.0 wt .-%, wt .-% in each case based on the total agent.

3. Composition according to claim 1 or 2, characterized in that the encapsulated fragrances are encapsulated in a water-insoluble material, wherein the wall material of the capsules preferably polyurethanes, polyolefins, polyamides, polyesters, polysaccharides, epoxy resins, silicone resins and / or polycondensation products of carbonyl compounds and NH-containing compounds.

4. Composition according to one of claims 1-3, characterized in that the encapsulated perfume oil contains less than 15 wt .-%, preferably less than 10 wt .-%, in particular less than 5 wt .-% solvent.

5. Composition according to one of claims 1-4, characterized in that the encapsulated fragrances are in the form of fragrance-containing microcapsules, wherein the microcapsules advantageously mean diameter in the range of 0.05 to 500 .mu.m, preferably between 5 and 150 .mu.m, in particular between 10 and 100 microns and the shell of the microcapsules advantageously has an average thickness in the range between about 0.01 and 50 microns, preferably between about 0.1 microns and about 30 microns, in particular between about 0.5 microns and about 8 microns.

6. Composition according to one of claims 1-5, characterized in that it contains ingredients for the care of the skin such as preferably silicone oil, almond oil, green tea extract, aloe vera preparations, vitamin E, D-panthenol, plankton extract, vitamin C, urea and / or glycine, especially in microencapsulated form.

7. Composition according to one of claims 1-6, characterized in that it contains perfume precursors, in particular incorporated in microcapsules.

8. Composition according to one of claims 1-7, characterized in that the fragrances used comprise silicic acid ester mixtures which silicic acid esters of the formulas

(i) and

contain, wherein all R are independently selected from the group containing H, the straight-chain or branched, saturated or unsaturated, substituted or unsubstituted C 1-6 hydrocarbon radicals and the perfume alcohol residues and / or Bizidalkoholreste, and m values from the range 1 to 20 and n takes values from the range 2 to 100.

9. Composition according to one of claims 1-8, characterized in that

(C) at least 15 wt .-%, preferably at least 20 wt .-%, in particular at least 25 wt .-% of the non-encapsulated fragrances have a boiling point <25O ⁰ C, preferably <200 ⁰ C, wt .-% based on the Total amount of non-encapsulated fragrances, (D) less than 30 wt .-%, preferably less than 25 wt .-%, in particular less than 20 wt .-% of the non-encapsulated fragrances have a ClogP value less than 3.0, wt .-% based on the total amount the non-encapsulated fragrances.

10. Composition according to one of claims 1-9, characterized in that the fabric softening component comprises a cationic surfactant, in particular an alkylated, quaternary ammonium compound, wherein at least one alkyl chain is interrupted by an ester or amido group.

11. Composition according to one of claims 1-10, characterized in that it contains an emulsifier, preferably a nonionic surfactant, in particular comprising alkoxylated fatty alcohol and / or alkyl glycoside.

12. A textile treatment process in which the textile to be treated is subjected to a textile treatment using a fabric softener according to any one of claims 1-11, in particular in an automatic washing machine.

13. Use of a fabric softener according to any one of claims 1-11 for conditioning textile fabrics, in particular in an automatic washing machine.