WO1999009136A1

WO1999009136A1 - High-dose fragranced shaped bodies

Info

Publication number: WO1999009136A1
Application number: PCT/EP1998/005050
Authority: WO
Inventors: Thomas Gassenmeier; Jürgen MILLHOFF; Peter Busch
Original assignee: Henkel Kommanditgesellschaft Auf Aktien
Priority date: 1997-08-18
Filing date: 1998-08-08
Publication date: 1999-02-25
Also published as: EP1005524A1; JP2001515135A; DE19735783A1

Abstract

The invention relates to high-dose fragranced shaped bodies, containing carrier material (s), 20 to 50 wt. per cent fragrance (s) and optionally, other active and auxiliary substances usually found in washing and cleaning agents. At least 50 wt. per cent in relation to the weight of the shaped bodies is made up of fatty acids and fatty acid salts after subtracting the quantity of fragrance. The invention also relates to the use of the inventive high-dose fragranced shaped bodies for imparting a fragrance to washing and cleaning agents, and to a method for imparting a fragrance to textiles in a washing machine.

Description

"High-Dose Perfume Shapes"

The present invention relates to high-dose fragrance moldings which can be incorporated into detergents and cleaning agents and textile treatment and post-treatment compositions and whose fragrance content is at least 20% by weight, preferably at least 30% by weight, based on the weight of the molded body.

In textile washing, treatment and post-treatment, it is common today to add small amounts of perfume to the detergents and post-treatment agents, which serve to give the washing or rinsing solution itself, but also the textile goods treated with the washing or rinsing solution, a pleasant fragrance to lend. In addition to color and appearance, the scenting of detergents, cleaning agents and post-treatment agents is also an important aspect of the aesthetic product impression and an important point in the consumer decision for or against a specific product. For scenting, the perfume can either be incorporated directly into the agents or added to the washing or rinsing solution in an additional step. The first way specifies a certain product characteristic, while the second way, the consumer can individually decide on "his" scent from the various fragrance options on offer, comparable to choosing an eau de toilette or an aftershave. Accordingly, shaped perfume bodies and methods for scenting washing and rinsing liquors are widely described in the prior art. For example, DE 41 33 862 (Henkel) discloses tablets which contain carrier materials, fragrances and, if appropriate, further ingredients customary in washing and cleaning agents, sorbitol and additionally 20 to 70% by weight of a carbonate and acid bubbling system being used as carrier material. These tablets, which can be added, for example, to the rinse and fabric softener in a household washing machine, contain about 3 to 15, preferably 5 to 10,% by weight of fragrance. Due to the high disintegrant content of the tablets, they are sensitive to air humidity and must be stored appropriately protected.

DE 39 11 363 (Baron Freytag von Loringhoven) discloses a method for producing a washing or rinsing liquor enriched with fragrance and a fragrance addition agent used for this purpose. The addition agents, which are in the form of capsules or tablets, contain the fragrance together with an emulsifier in liquid form (capsules) or bound to fillers and carriers (tablets), sodium aluminum silicates or cyclodextrins being mentioned as carriers. The fragrance content of the capsules or tablets is at least 1 g, the volume of the compositions being over 1 cm ³ . Tablets or capsules with more than 2.5 g of fragrance and a volume of at least 5 cm ³ are preferred. During storage, such tablets or capsules must be provided with a gastight and watertight covering layer in order to protect the ingredients. Further details on the production and the physical properties of suitable tablets are not contained in this publication.

Another method for applying fragrances to textile goods is known from DE 195 30 999 (Henkel). In this process, a fragrance-containing molded body, which is produced by irradiating a mixture of porous carriers, hydrated substances and a partially liquid perfume preparation with microwaves, in Rinse aid used in a washing machine. The fragrance contents of the shaped bodies are between 8 and 40% by weight, starches, silicas, silicates and disilicates, phosphates, zeolites, alkali salts of polycarboxylic acids, oxidation products of polyglucosans and polyaspartic acids are used as carriers.

The international application WO 94/25563 (Henkel-Ecolab) describes a process for the production of washing and cleaning active moldings using microwave technology, which works without high pressure pressing. The moldings produced in this way are distinguished by an extremely high dissolving speed or disintegration speed with simultaneous breaking strength, without the need for an explosive. At the same time, they are stable in storage and can be stored without additional precautions. In this way it is also possible to produce moldings which have a perfume oil content which is customary for detergents and cleaning agents and between 1 and 3% by weight.

Perfume oils are usually volatile and could therefore evaporate under the influence of microwave radiation. If higher proportions of volatile liquid substances are to be used, a two-component system consisting of a component produced using microwave technology and a component containing the sensitive liquid substances is therefore described.

The object of the present invention was to provide highly concentrated perfume moldings which contain at least 20% by weight of perfume and yet do not have to be provided with a gastight and watertight covering layer or packaging during storage in order to protect the ingredients. In addition, it was an object of the present invention to provide a fragrance supply form which can be incorporated as a compound in conventional washing and cleaning agents and can also be used directly for individual fragrance selection in domestic washing processes. It has now been found that universally usable, highly concentrated perfume moldings can be produced if mixtures of fatty acids and fatty acid salts are used as the carrier material and the fragrance content is 20 to 50% by weight.

The present invention relates to a high-dose perfume molded body, comprising carrier material (s), fragrance (s) and, if appropriate, further active ingredients and auxiliaries customary in detergents and cleaning agents, where

a) the content of fragrance (s) in the shaped bodies is 20 to 50% by weight, based on the weight of the shaped body, and b) at least 50% by weight of the remaining body mass after deduction of the amount of fragrance consists of fatty acid and fatty acid salt.

In preferred embodiments of the present invention, the fragrance content of the high-dose fragrance moldings is 20 to 45% by weight, preferably 25 to 40% by weight and in particular 30 to 35% by weight.

In the context of the present invention, the term “shaped body” is understood to mean any spatial shape which can be imposed on the agents according to the invention by suitable processing methods. For example, the term “shaped body” is not limited to blocks, tablets and coarse pieces, but also includes briquettes, Pearls, pellets, rundates, extrudates, granules etc. However, fragrance pearls are preferably suitable for incorporation into products to be scented, while the individual textile scenting is expediently carried out for the consumer by fragrance tablets.

In the context of the present invention, the term “carrier material” characterizes all substances used in the shaped body that are not fragrance. According to the invention, mixtures of fatty acids and fatty acid salts and optionally further constituents are used as carrier materials for the fragrance, the content of the carrier material being Fatty acids and fatty acid salts should make up at least 50% by weight of the weight of the carrier material. In the context of the present invention, the content of preferred high-dose perfume moldings of fatty acid and fatty acid salts is 30 to 70% by weight, preferably 35 to 60% by weight and in particular 40 to 50% by weight. In the context of the present invention, the term “mixtures of fatty acids and fatty acid salts and optionally further constituents” is understood to mean mixtures in which the content of fatty acid or fatty acid salt is in each case between 5 and 95% by weight, based on the mixture , with the proviso that at least 50% by weight of the carrier material consists of fatty acid and fatty acid salt, while ratios of fatty acid to fatty acid salt between 1:19 and 19: 1 are covered In the present invention, high-dose perfume molded articles are preferred, in which the substances which are not perfume 15 to 35 wt .-%, preferably 20 to 25 wt .-% of one or more fatty acids and 10 to 25 wt .-%, preferably 20 to 30% by weight of one or more fatty acid salts, based in each case on the weight of the shaped body.

All acids obtained from vegetable or animal oils and fats can be used as fatty acids in the carrier material. Depending on the content of fatty acid and fatty acid salt in the carrier material, a fatty acid that is not solid at room temperature, i.e. pasty to liquid, fatty acid can be used. From an application point of view, however, fatty acids that are solid at room temperature are clearly preferred over other fatty acids.

The fatty acids can be saturated or mono- to polyunsaturated regardless of their physical state. In the case of unsaturated fatty acids too, the species which are solid at room temperature are preferred over the liquid or pasty ones. Of course, not only "pure" fatty acids can be used, but also the technical fatty acid mixtures obtained from the cleavage of fats and oils, these mixtures being clearly preferred from an economic point of view. For example, individual species or mixtures of the following acids can be used in the carrier materials for the high-dose perfume moldings according to the invention: capylic acid, pelargonic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, octadecan-12-ol acid, arachic acid, Behenic acid, lignoceric acid, cerotinic acid, melissic acid, 10-undecenoic acid, petroselinic acid, petroselaidic acid, oleic acid, elaidic acid, ricinoleic acid, linolaidic acid, α- and ß-eläosterainic acid, gadoleic acid, erucic acid, brassidic acid. Of course, the fatty acids with an odd number of carbon atoms can also be used, for example undecanoic acid, tridecanoic acid, pentadecanoic acid, heptadecanoic acid, nonadecanoic acid, heneicosanoic acid, tricosanoic acid, pentacosanoic acid, heptacosanoic acid.

Preferred moldings contain as fatty acid component in the carrier material fatty acids with 12 to 22, preferably 14 to 20 and in particular 16 to 18 carbon atoms.

All salts of fatty acids are used as fatty acid salts in the carrier materials for the moldings according to the invention. While in principle, for example, aluminum, alkaline earth and alkali metal salts of the fatty acids can be used, moldings are preferred in which the alkali metal and, in turn, the sodium salts of the fatty acids are preferably contained.

The fatty acid salts can also be salts of lower fatty acids, so that, for example, acetates, propionates, butyrates, valerates, etc. can also be used. However, the fatty acid salts are also preferably salts of fatty acids with more than 10 carbon atoms. Particularly preferred fragrance moldings contain, as fatty acid salts in the carrier material, the alkali metal, preferably sodium, salts of fatty acids with 12 to 22, preferably 14 to 20 and in particular 16 to 18 carbon atoms.

While at least 50% by weight of the non-fragrance substances consist of fatty acid and fatty acid salt, the agents according to the invention can also contain further components which are also added to the carrier material before the fragrance is incorporated. On the one hand, these can be substances that do not contain properties, on the other hand, however, substances can be used that have an additional carrier function for fragrance or other optional components. In the context of the present invention, all of the ingredients of the fragrance molded articles according to the invention which are not fragrance are referred to as carrier materials in order to avoid a distinction between “carriers” and “non-carriers” in the case of optionally used components. If the mass of the fragrance is subtracted from the weight of the shaped body, at least 50% by weight of the remaining mass must consist of fatty acid and fatty acid salt, while the remaining maximum 50% by weight of the remaining mass can be optional components with or without carrier properties. Irrespective of the fact whether the optional components have carrier properties or not, it is possible in this way to produce storage-stable and non-bleeding perfume moldings.

Individual fragrance compounds, for example the synthetic products of the ester, ether, aldehyde, ketone, alcohol and hydrocarbon type, can be used as perfume oils or fragrances. Fragrance compounds of the ester type are, for example, benzyl acetate, phenoxyethyl isobutyrate, p-tert.-butylcyclohexyl acetate, linalyl acetate, dimethylbenzylcarbyl acetate, phenylethyl acetate, linalylbenzoate, benzylformate, ethylmethylphenylglycylate, allylpropylateylylpyrylateyl allylpropionate, allylpropylylpyrylate, allylpropylatepylateyl allylpropionate, allylpropylatepylate, The ethers include, for example, benzyl ethyl ether, the aldehydes, for example, the linear alkanals with 8-18 C atoms, citral, citronellal, citronellyloxyacetaldehyde, cyclamenaldehyde, hydroxycitronellal, lilial and bourgeonal, the ketones, for example, the jonones, <χ-isomethylionone and Methyl cedryl ketone, the alcohols anethole, citronellol, eugenol, geraniol, linalool, phenylethyl alcohol and terpineol, the hydrocarbons mainly include the terpenes such as limonene and pinene. However, preference is given to using mixtures of different fragrances which together produce an appealing fragrance. Perfume oils of this type can also contain natural fragrance mixtures such as are obtainable from plant sources, for example pine, citrus, jasmine, patchouli, rose or ylang-ylang oil. Also suitable are muscatel, sage oil, chamomile oil, clove oil, lemon balm oil, mint oil, cinnamon leaf oil, linden blossom oil, juniper beer oil, vetiver oil, olibanum oil, galbanum oil and labdanum oil as well as orange blossom oil, neroliol, orange peel oil and sandalwood oil.

In addition to the ingredients mentioned, carrier material made from fatty acid and fatty acid salt and fragrance, the high-dose fragrance molded articles according to the invention can also contain other usual ingredients of detergents and cleaning agents. Preferred moldings contain 10 to 50% by weight, preferably 15 to 40% by weight and in particular 20 to 30% by weight of further customary ingredients of detergents and cleaning agents.

Such optional ingredients of detergents and cleaning agents come, for example, from the group of ionic and nonionic surfactants, builders, bleaches and bleach activators, enzymes, optical brighteners and foam inhibitors, oligomeric and polymeric polycarboxylates, dyes, pH regulators, Fluorescent agents, anti-redeposition agents, graying inhibitors, anti-shrink agents, color transfer inhibitors, wetting enhancers, antimicrobial agents, germicides, fungicides, antioxidants, corrosion inhibitors, antistatic agents, ironing aids, phobing and impregnating agents, and swelling and absorbing agents, as well as swelling and absorbing agents.

In preferred moldings, the other usual ingredients of washing and cleaning agents are selected from the group of surfactants, builders, bleaching agents and bleach activators.

The surfactants that can be used come from the classes of anionic, cationic, amphoteric and nonionic surfactants. Anionic surfactants used are, for example, those of the sulfonate and sulfate type. Suitable surfactants of the sulfonate type are preferably C ₉ _ ₁₃ alkyl benzene sulfonates, olefin sulfonates, ie mixtures of alkene and hydroxyalkane sulfonates, and the disulfonates obtained, for example, from C ₁₂ _ ₁₈ monoolefins with terminal or internal double bond by sulfonation with gaseous sulfur trioxide and subsequent alkaline or acid hydrolysis of the sul- donation products. Alkanesulfonates which are derived from C ₁₂ are also suitable. ₁₈ - Alkanes can be obtained, for example, by sulfochlorination or sulfoxidation with subsequent hydrolysis or neutralization. The esters of α-sulfofatty acids (ester sulfonates), for example the α-sulfonated methyl esters of hydrogenated coconut, palm kernel or tallow fatty acids, are also suitable.

Other suitable anionic surfactants are sulfonated fatty acid glycerol esters. Fatty acid glycerol esters are to be understood as the mono-, di- and triesters and their mixtures as obtained in the production by esterification of a monoglycerol with 1 to 3 moles of fatty acid or in the transesterification of triglycerides with 0.3 to 2 moles of glycerol become. Preferred sulfated fatty acid glycerol esters are the sulfonation products of saturated fatty acids having 6 to 22 carbon atoms, for example caproic acid, caprylic acid, capric acid, myristic acid, lauric acid, palmitic acid, stearic acid or behenic acid.

Alk (en) yl sulfates are the alkali and especially the sodium salts of the sulfuric acid half esters of C ₁₂ -C _{] 8} fatty alcohols, for example from coconut fatty alcohol, tallow fatty alcohol, lauryl, myristyl, cetyl or stearyl alcohol or the C _{] 0} -C ₂₀ -Oxo alcohols and those half esters of secondary alcohols of this chain length are preferred. Also preferred are alk (en) yl sulfates of the chain length mentioned, which contain a synthetic, petrochemical-based straight-chain alkyl radical which have a degradation behavior similar to that of the adequate compounds based on oleochemical raw materials. From the washing, the C ₁₂ -C ₁₆ alkyl sulfates and C _I2 are - C ₁₅ alkyl sulfates and C ₁₄ -C ₁₅ alkyl sulfates of preferably. In addition, 2,3-alkyl sulfates, which are produced for example in accordance with US Patent No. 3,234,258 or 5,075,041 and can be obtained as commercial products from Shell Oil Company under the name DAN ^®, are suitable anionic surfactants.

Other suitable anionic surfactants are also the salts of alkylsulfosuccinic acid, which are also referred to as sulfosuccinates or as sulfosuccinic acid esters, and the monoesters and / or diesters of sulfosuccinic acid with alcohols, preferably fatty alcohols. fetch and in particular represent ethoxylated fatty alcohols. Preferred sulfosuccinates contain C ₈ . _I8 fatty alcohol residues or mixtures thereof. Particularly preferred sulfosuccinates contain a fatty alcohol residue which is derived from ethoxylated fatty alcohols, which in themselves are nonionic surfactants (description see below). Again, sulfosuccinates whose fatty alcohol residues are derived from ethoxylated fatty alcohols with a narrow homolog distribution are particularly preferred. It is also possible to use alk (en) ylsuccinic acid with preferably 8 to 18 carbon atoms in the alk (en) yl chain or salts thereof.

The anionic surfactants, including the soaps, can be in the form of their sodium, potassium or ammonium salts and also as soluble salts of organic bases, such as mono-, di- or triethanolamine. The anionic surfactants are preferably in the form of their sodium or potassium salts, in particular in the form of the sodium salts.

The nonionic surfactants used are preferably alkoxylated, advantageously ethoxylated, in particular primary alcohols having preferably 8 to 18 carbon atoms and an average of 1 to 12 moles of ethylene oxide (EO) per mole of alcohol in which the alcohol radical has a methyl or linear branching in the 2-position may be or may contain linear and methyl-branched radicals in the mixture, as are usually present in oxo alcohol radicals. However, alcohol ethoxylates with linear residues of alcohols of native origin with 12 to 18 carbon atoms, for example from coconut, palm, tallow or oleyl alcohol, and an average of 2 to 8 EO per mole of alcohol are particularly preferred. Preferred ethoxylated alcohols include, for example, C ₁₂ _ ₁₄ alcohols with 3 EO or 4 EO, C. ₉ _π alcohol with 7 EO, C ₁₃ . ₁₅ - alcohols with 3 EO, 5 EO, 7 EO or 8 EO, C ₁₂ . ₁₈ alcohols with 3 EO, 5 EO or 7 EO and mixtures of these, such as mixtures of C ₁₂ . ₁₄ alcohol with 3 EO and C ₁₂ . ₁₈ alcohol with 5 EO. The degrees of ethoxylation given represent statistical averages, which can be an integer or a fraction for a specific product. Preferred alcohol ethoxylates have a narrow homolog distribution (narrow range ethoxylates, NRE). In addition to these Nonionic surfactants can also use fatty alcohols with more than 12 EO. Examples of this are tallow fatty alcohol with 14 EO, 25 EO, 30 EO or 40 EO.

In addition, alkyl glycosides of the general formula RO (G) _N can also be used as further nonionic surfactants, in which R denotes a primary straight-chain or methyl-branched, in particular methyl-branched aliphatic radical having 8 to 22, preferably 12 to 18, C atoms and G is the symbol which stands for a glycose unit with 5 or 6 carbon atoms, preferably for glucose. The degree of oligomerization x, which indicates the distribution of monoglycosides and oligoglycosides, is any number between 1 and 10; x is preferably 1.2 to 1.4.

Another class of preferably used nonionic surfactants, which are used either as the sole nonionic surfactant or in combination with other nonionic surfactants, are alkoxylated, preferably ethoxylated or ethoxylated and propoxylated, fatty acid alkyl esters, preferably having 1 to 4 carbon atoms in the alkyl chain, in particular fatty acid methyl ester, as described for example in Japanese patent application JP 58/217598 or which are preferably produced by the process described in international patent application WO-A-90/13533 (Henkel).

Nonionic surfactants of the amine oxide type, for example N-coconut alkyl-N, N-dimethylamine oxide and N-tallow alkyl-N, N-dihydroxyethylamine oxide, and the fatty acid alkanolamides can also be suitable, but are not preferred in the context of the present invention on account of their nitrogen content . The amount of these nonionic surfactants is preferably not more than that of the ethoxylated fatty alcohols, in particular not more than half of them.

Other suitable surfactants, which are less preferred because of their nitrogen content, are polyhydroxy fatty acid amides of the formula (I), Rl

R-CO-N- [Z] (I)

in which RCO stands for an aliphatic acyl radical with 6 to 22 carbon atoms, R for hydrogen, an alkyl or hydroxyalkyl radical with 1 to 4 carbon atoms and [Z] for a linear or branched polyhydroxyalkyl radical with 3 to 10 carbon atoms and 3 to 10 hydroxyl groups. The polyhydroxy fatty acid amides are known substances which can usually be obtained by reductive amination of a reducing sugar with ammonia, an alkylamine or an alkanolamine and subsequent acylation with a fatty acid, a fatty acid alkyl ester or a fatty acid chloride.

The group of polyhydroxy fatty acid amides also includes compounds of the formula (II)

R ^ OR ²

R-CO-N- [Z] (II)

in which R represents a linear or branched alkyl or alkenyl radical having 7 to 12 carbon atoms, R ^{1 represents} a linear, branched or cyclic alkyl radical or an aryl radical having 2 to 8 carbon atoms and R ^{2 represents} a linear, branched or cyclic alkyl radical or an aryl radical or an oxy-alkyl radical having 1 to 8 carbon atoms, with C _M alkyl or phenyl radicals being preferred and [Z] being a linear polyhydroxyalkyl radical whose alkyl chain is substituted by at least two hydroxyl groups, or alkoxylated, preferably ethoxylated or propoxylated derivatives thereof Rest. [Z] is preferably obtained by reductive amination of a reduced sugar, for example glucose, fructose, maltose, lactose, galactose, mannose or xylose. The N-alkoxy- or N-aryloxy-substituted compounds can then be converted, for example according to the teaching of international application WO-A-95/07331 (Procter & Gamble), into the desired polyhydroxy fatty acid amides by reaction with fatty acid methyl esters in the presence of an alkoxide as catalyst.

Silicates, aluminum silicates (especially zeolites), carbonates, salts of organic di- and polycarboxylic acids and mixtures of these substances are to be mentioned in particular as builders which can be contained in the high-dose perfume moldings according to the invention.

Suitable crystalline, layered sodium silicates have the general formula NaMSi _x O _{2x + 1} Η ₂ O, where M is sodium or hydrogen, x is a number from 1.9 to 4 and y is a number from 0 to 20 and preferred values for x 2 , 3 or 4 are. Such crystalline layered silicates are described, for example, in European patent application EP-A-0 164 514. Preferred crystalline layered silicates of the formula given are those in which M represents sodium and x assumes the values 2 or 3. In particular, both β- and δ-sodium disilicates Na ^ i _^ O; 'yH ₂ O is preferred, wherein β-sodium disilicate can be obtained, for example, by the process described in international patent application WO-A-91/08171.

Amorphous sodium silicates with a modulus N ^ O: SiO ₂ of 1: 2 to 1: 3.3, preferably from 1: 2 to 1: 2.8 and in particular from 1: 2 to 1: 2.6, can also be used are delayed in dissolving and have secondary washing properties. The delay in dissolution compared to conventional amorphous sodium silicates can be caused in various ways, for example by surface treatment, compounding, compacting / compression or by overdrying. In the context of this invention, the term “amorphous” is also understood to mean “X-ray amorphous”. This means that the silicates do not give sharp X-ray reflections in X-ray diffraction experiments as they do are typical for crystalline substances, but at most one or more maxima of the scattered X-rays, which have a width of several degree units of the diffraction angle. However, it can very well lead to particularly good builder properties if the silicate particles provide washed-out or even sharp diffraction maxima in electron diffraction experiments. This is to be interpreted as meaning that the products have microcrystalline areas of size 10 to a few hundred nm, values up to max. 50 nm and in particular up to max. 20 nm are preferred. Such so-called X-ray silicates, which also have a delay in dissolution compared to conventional water glasses, are described, for example, in German patent application DE-A-44 00 024. Particularly preferred are compressed / compacted amorphous silicates, compounded amorphous silicates and over-dried x-ray silicates.

The finely crystalline, synthetic and bound water-containing zeolite used is preferably zeolite A and / or P. As zeolite P, zeolite ^MAP® (commercial product from Crosfield) is particularly preferred. However, zeolite X and mixtures of A, X and / or P are also suitable. Suitable zeolites have an average particle size of less than 10 μm (volume distribution; measurement method: Coulter Counter) and preferably contain 18 to 22% by weight, in particular 20 up to 22% by weight of bound water.

Of course, it is also possible to use the generally known phosphates as builder substances, provided that such use should not be avoided for ecological reasons. The sodium salts of orthophosphates, pyrophosphates and in particular tripolyphosphates are particularly suitable.

Usable organic builders are, for example, the polycarboxylic acids which can be used in the form of their sodium salts, such as citric acid, adipic acid, succinic acid, glutaric acid, tartaric acid, sugar acids, aminocarboxylic acids, nitrilotriacetic acid (NTA), provided that such use is not objectionable for ecological reasons, and Mixtures of these. Preferred salts are the salts of polycarboxylic acids such as citric acid, adipic acid, succinic acid, glutaric acid, tartaric acid, sugar acids and mixtures of these.

Among the compounds which serve as bleaching agents and supply H ₂ O ₂ in water, sodium perborate tetrahydrate and sodium perborate monohydrate are of particular importance. Other bleaching agents that can be used are, for example, sodium percarbonate, peroxypyrophosphates, citrate perhydrates and H ₂ O ₂ -producing peracid salts or peracids, such as perbenzoates, peroxophthalates, diperazelaic acid, phthaloiminoperacid or diperdodecanedioic acid.

In order to achieve a bleaching effect, bleach activators can be incorporated into the fragrance molded body. Bleach activators which can be used are compounds which, under perhydrolysis conditions, give aliphatic peroxocarboxylic acids having preferably 1 to 10 C atoms, in particular 2 to 4 C atoms, and / or optionally substituted perbenzoic acid. Suitable substances are those which carry O- and / or N-acyl groups of the number of carbon atoms mentioned and / or optionally substituted benzoyl groups. Preferred are multiply acylated alkylenediamines, especially tetraacetylethylenediamine (TAED), acylated triazine derivatives, especially 1,5-diacetyl-2,4-dioxohexahydro-1,3,5-triazine (DADHT), acylated glycolurils, especially tetraacetylglycoluril (TAGU ), N-acylimides, especially N-nonanoylsuccinimide (NOSI), acylated phenol sulfonates, especially n-nonanoyl- or isononanoyloxybenzenesulfonate (n- or iso-NOBS), carboxylic acid anhydrides, especially phthalic anhydride, acylated polyhydric alcohols, especially triacetyl alcohols, especially triac 5-diacetoxy-2,5-dihydrofuran.

In addition to the conventional bleach activators or in their place, so-called bleach catalysts can also be incorporated into the moldings. These substances are bleach-enhancing transition metal salts or transition metal complexes such as Mn, Fe, Co, Ru or Mo salt complexes or carbonyl complexes. Mn, Fe, Co, Ru, Mo, Ti, V and Cu complexes with N-containing tripod ligands as well as Co, Fe, Cu and Ru amine complexes can also be used as bleaching catalysts.

In addition, the fragrance moldings can also contain components which have a positive influence on the oil and fat washability from textiles (so-called soil repellents). This effect becomes particularly clear when a textile is soiled that has already been washed several times beforehand with a detergent according to the invention which contains this oil and fat-dissolving component. The preferred oil and fat-dissolving components include, for example, non-ionic cellulose ethers such as methyl cellulose and methyl hydroxypropyl cellulose with a proportion of mefhoxyl groups of 15 to 30% by weight and of hydroxypropoxyl groups of 1 to 15% by weight in each case based on the nonionic cellulose ether, and the polymers of phthalic acid and / or terephthalic acid or their derivatives known from the prior art, in particular polymers of ethylene terephthalates and / or polyethylene glycol terephthalates or anionically and / or nonionically modified derivatives thereof. Of these, the sulfonated derivatives of phthalic acid and terephthalic acid polymers are particularly preferred.

The fragrance molded body according to the invention can be produced in any spatial shape. A preferred manufacturing process provides that the carrier material and any optional components used are melted and stirred together at temperatures between 30 to 80 ° C. until a homogeneous melt has formed. After adding and stirring in the fragrance, the mass is allowed to cool and solidifies in the process. Additional components to be used optionally are also stirred into the melt before or after the fragrance is added, temperature-sensitive substances advantageously being added to the mixture shortly before the solidification point.

Shaping molding is of course possible and also preferred in the state of a heated plastically deformable mass. So the plastically deformable Bare masses, for example, extruded and pressed through hole shapes, a continuous cutting of the extruded individual strands and possibly a subsequent rounding are possible. The "fragrance pearls" obtained in this way can be further improved in their application properties using common surface treatment methods, for example powdering. In this form, they are directly suitable for incorporation into common detergents and cleaning agents, but can also be mixed with other constituents, if appropriate - to fragrance molded bodies, for example tablets, which are suitable for applying fragrance to textile goods, for example in a household washing machine.

Of course, the high-dose fragrance shaped bodies according to the invention can also be prepared by other manufacturing processes. In addition to the extension described in detail above, for example the granulation of fatty acid and fatty acid salt with the fragrance and the optionally contained ingredients as well as the build-up granulation of fine-particle fatty acid salt (optionally in a mixture with other ingredients) with fatty acid and fragrance. Aqueous slurries of the carrier material can also be produced by spray drying and sprayed with fragrance, in which case optional components may also be present.

In further embodiments, the present invention provides for the use of a high-dose fragrance shaped body, comprising carrier material (s), fragrance (s) and, if appropriate, further active ingredients and auxiliaries customary in detergents and cleaners, mixtures of fatty acids and fatty acid salts being used as carrier material are used and the content of the shaped body of fragrance (s) is 20 to 50% by weight for the fragrance of detergents and cleaning agents.

A further preferred embodiment of the present invention is a method for applying fragrances to textile goods in a washing machine by adding a solid, fragrance-containing molded body in the washing or rinsing cycle, in the high-dose fragrance molded body, containing carrier material (s), fragrance (s) and given if other active ingredients and auxiliaries customary in washing and cleaning agents, mixtures of fatty acids and fatty acid salts being used as carrier material and the content of the fragrance (s) in the moldings being 20 to 50% by weight, in whole or in divided form, in the Washing or rinsing of a machine washing process can be given to wet laundry.

B e i s p i e l e

To illustrate the invention, moldings of the following composition were produced:

Stearic acid 22.0% by weight

Sodium stearate 26.0% by weight

C ₁₂ . ₁₈ fatty alcohol sulfate 15.0% by weight

C ₁₃ alkylbenzenesulfonate 7.0% by weight

Perfume oil 30.0% by weight

For this purpose, all components were melted down to the perfume oil until a homogeneous melt was formed. The perfume oil was then added and the mass was cooled with stirring.

To produce fragrance pearls, the mass was extruded and pressed through hole molds, being knocked off over a length of 1 to 2 mm after exiting the perforated disc and subjected to a subsequent rounding. To improve the surface quality, the pearls obtained in this way were powdered with 2% by weight of their weight of rice starch.

The pearls can now be used directly for scenting detergents and cleaning agents, whereby they can either be incorporated into solid detergents and cleaning agents or dissolved in liquid detergents and cleaning agents. In order to provide the consumer with an appealing product for scenting textiles, the beads were mixed with conventional tabletting aids (binding and disintegration aids) in amounts of 20% by weight (based on the weight of the resulting tablets) and pressed into tablets. The products produced in this way disintegrate quickly and without residues to form perfume oil emulsions after they have been introduced into conventional washing liquors. Further fragrance shaped bodies according to the invention of the following composition were also produced:

A B C

Stearic acid 22.0% by weight 37.5% by weight 22.0% by weight

Sodium stearate 14.0% by weight 37.5% by weight 14.0% by weight

C _12.18 fatty alcohol sulfate 30.0% by weight - 30.0% by weight

C _I3 alkyl benzene sulfonate 4.0 wt .-% - 4.0 wt .-%

Perfume oil 30.0% by weight 25.0% by weight 30.0% by weight

The fragrance molded bodies were produced analogously to the uppermost example, in that all of the components apart from the perfume oil were processed into a homogeneous melt and the perfume oil was incorporated into the almost solidified mass. Example "A" had particularly good mechanical properties when processed in the extruder, example "B" represents a hard and brittle mass which can be processed well into pastilles and example "C" after powdering with 2% sodium carbonate / starch (1: 1) a formable yet solid mass that can also be easily extruded.

Claims

Patent claims

1. High-dose fragrance molded body, containing carrier material (ien), fragrance (s) and optionally other active ingredients and auxiliaries customary in washing and cleaning agents, characterized in that

a) the content of the shaped body of fragrance (s) is 20 to 50% by weight, based on the weight of the shaped body, and b) at least 50% by weight of the remaining body mass after deduction of the amount of fragrance consists of fatty acid and fatty acid salt.

2. High-dose fragrance molded body according to claim 1, characterized in that the fragrance content is 20 to 45 wt .-%, preferably 25 to 40 wt .-% and in particular 30 to 35 wt .-%.

3. High-dose fragrance molded body according to one of claims 1 or 2, characterized in that the content of the molded body of fatty acid and fatty acid salts 30 to 70 wt .-%, preferably 35 to 60 wt .-% and in particular 40 to 50 wt. -%.

4. High-dose fragrance shaped body according to one of claims 1 to 3, characterized in that the substances that are not fragrances 15 to 35 wt .-%, preferably 20 to 25 wt .-% of one or more fatty acids and 10 to 25 wt .-%, preferably 20 to 30 wt .-% of one or more fatty acid salts, each based on the molded body weight, contain.

5. High-dose fragrance molded body according to one of claims 1 to 4, characterized in that fatty acids with 12 to 22, preferably 14 to 20 and in particular 16 to 18 carbon atoms are used as fatty acid components.

6. High-dose fragrance molded body according to one of claims 1 to 5, characterized in that the alkali metal, preferably sodium salts, of fatty acids having 12 to 22, preferably 14 to 20 and in particular 16 to 18 carbon atoms are used as fatty acid salts.

7. High-dose fragrance molded body according to one of claims 1 to 6, characterized in that it contains 10 to 50% by weight, preferably 15 to 40% by weight and in particular 20 to 30% by weight of other common ingredients of washing and detergents.

8. High-dose fragrance molded article according to claim 7, characterized in that the further ingredients of washing and cleaning agents are selected from the group of surfactants, builders, bleaching agents and bleach activators.

9. Use of a high-dose fragrance shaped body, containing carrier material (s), fragrance (s) and, if appropriate, further active ingredients and auxiliaries customary in washing and cleaning agents, where

for scenting detergents and cleaning agents.

10. A process for applying fragrances to textile goods in a washing machine by adding a solid, fragrance-containing molded article in the rinse cycle, characterized in that high-dose fragrance molded articles containing carrier material (s), fragrance (s) and optionally other in washing and Cleaning agents usual active ingredients and auxiliaries, whereby a) the content of the shaped body of fragrance (s) is 20 to 50% by weight, based on the weight of the shaped body, and b) at least 50% by weight of the remaining body mass after deduction of the amount of fragrance consists of fatty acid and fatty acid salt.

be given in whole or in divided form in the washing or rinsing cycle of a machine washing process for wet laundry.