EP1252284A2

EP1252284A2 - Fragrance tablets

Info

Publication number: EP1252284A2
Application number: EP01902355A
Authority: EP
Inventors: Ditmar Kischkel; Manfred Weuthen
Original assignee: Cognis Deutschland GmbH and Co KG
Current assignee: BASF Personal Care and Nutrition GmbH
Priority date: 2000-02-04
Filing date: 2001-01-26
Publication date: 2002-10-30
Also published as: US20030032575A1; WO2001057167A3; DE10005017A1; WO2001057167A2

Abstract

Fragrance tablets are disclosed, comprising a) 69 to 99 wt. % dispersing agents, b) 1 to 31 wt. % fragrances, c) 0 to 10 wt. % builders and d) 0 to 10 wt. % detergents, with the proviso, that the given amounts add up to 100 wt. %.

Description

Perfume tablets

Field of the Invention

The invention is in the field of solid detergents and relates to new fragrance tablets.

State of the art

Solid detergents in tablet form are increasingly being used for textile cleaning in the household sector. Different forms of application have established themselves on the market (e.g. use in the dispenser, use in the washing machine drum together with application aids). The detergent tablets currently on the market all contain perfume oil, whereby the perfume oils have three main functions:

> Smell for the tablet,

> Scenting the laundry room during the washing process and

> Odor of the laundry after the cleaning process.

For obvious reasons, the last aspect is of the greatest importance. For a large number of consumers, however, the use of perfumes leads to problems because they either find the fragrance unpleasant or even have an allergic reaction to it. An alternative would of course be to offer perfume-free and fragrance-free detergent tablets, similar to washing powders. While this would of course serve the perfume allergy immediately, the problem of too intensive or too weak scenting of the laundry would remain unsolved.

The object of the present invention was therefore to provide a simple and, above all, attractive solution from the commercial point of view for the problem described. Description of the invention

The invention relates to fragrance tablets consisting of

(a) 69 to 99, preferably 75 to 90% by weight of disintegrants,

(b) 1 to 31, preferably 4 to 8% by weight of fragrances,

(c) 0 to 10, preferably 3 to 7% by weight of builders and

(d) 0 to 10, preferably 3 to 10% by weight of surfactants,

with the proviso that the quantities add up to 100% by weight.

With the use of the fragrance tablet, it is up to the consumer whether he wants to use it together with perfume-free detergent or not. The degree of scenting can also be set via the amount. Finally, there is the possibility of making tablets with different fragrances available to the consumer, so that even when using one and the same detergent, the fragrance of the laundry can always be different depending on the season or taste, without the detergent manufacturer having to keep a large number of different detergent tablets , A special application form is, for example, to combine certain fragrance notes with certain colors of the fragrance tablets. For example, a “green” fragrance note could be accommodated in a green or green-white tablet, while a yellow or yellow-white tablet would be characteristic of a citrus note. Such tablets with different fragrance notes could be offered separately or as a collection, ie as a mixture of different fragrance tablets from which the consumer can then choose. Another advantage is that the scenting of the laundry can be achieved particularly easily because, unlike the detergent tablet, the fragrance tablet can be dosed into the rinse cycle comparable effect of the fragrance compared to the detergent tablet has already been achieved with considerably smaller amounts (about 5 to 90% by weight), and the concept also allows the use of possibly particularly inexpensive fragrances which are no longer compared to the bl calibration and alkalis must be resistant.

Sprenqmittel

The new fragrance tablets contain disintegrants or disintegrants as component (a). This includes substances that are added to the molded bodies in order to prevent them from decaying when speeding up with water. Overviews can be found, for example, in J.Pharm.Sci. 61 (1972), Römpp Chemilexikon, 9th edition, volume 6, p. 4440 as well as and Voigt "Textbook of pharmaceutical technology" (6th edition, 1987, p. 182-184). These substances increase their volume when water enters, whereby On the one hand, the volume increases (swelling), on the other hand, a pressure can be generated by the release of gases, which causes the tablet to disintegrate into smaller particles. Well-known disintegration aids are, for example, carbonate / citric acid systems, although other organic acids can also be used Disintegration aids are, for example, synthetic polymers such as optionally crosslinked polyvinylpyrrolidone (PVP) or natural polymers or modified natural substances such as cellulose and starch and their derivatives, in particular carboxymethyl celluloses and starches and their salts, alginates, casein derivatives or chitosans of the present invention Des cellulose-based integration agents used. Pure cellulose has the formal gross composition (C6Hιoθ5) n and, formally speaking, is a ß-1, 4-polyacetal of cellobiose, which in turn is made up of two molecules of glucose. Suitable celluloses consist of approximately 500 to 5000 glucose units and consequently have average molecular weights of 50,000 to 500,000. Cellulose-based disintegrants which can be used in the context of the present invention are also cellulose derivatives which can be obtained from cellulose by polymer-analogous reactions. Such chemically modified celluloses include, for example, products from esterifications or etherifications in which hydroxy hydrogen atoms have been substituted. However, celluloses in which the hydroxyl groups have been replaced by functional groups which are not bound via an oxygen atom can also be used as cellulose derivatives. The group of cellulose derivatives includes, for example, alkali celluloses, carboxymethyl cellulose (CMC), cellulose esters and ethers and aminocelluloses. The cellulose derivatives mentioned are preferably not used alone as a cellulose-based disintegrant, but are used in a mixture with cellulose. The content of these mixtures of cellulose derivatives is preferably below 50% by weight, particularly preferably below 20% by weight, based on the cellulose-based disintegrant. Pure cellulose which is free from cellulose derivatives is particularly preferably used as the disintegrant based on cellulose. Microcrystalline cellulose can be used as a further cellulose-based disintegrant or as a component of this component. This microcrystalline cellulose is obtained by partial hydrolysis of celluloses under conditions which only attack and completely dissolve the amorphous areas (approx. 30% of the total cellulose mass) of the celluloses, but leave the crystalline areas (approx. 70%) undamaged. A subsequent disaggregation of the microfine celluloses produced by the hydrolysis provides the microcrystalline celluloses, which have primary particle sizes of approximately 5 μm and can be compacted, for example, into granules with an average particle size of 200 μm. The disintegrants can be macroscopically homogeneously distributed in the shaped body, but microscopically they form zones of increased concentration due to the manufacturing process. Disintegrants which may be present in the sense of the invention, such as, for example, Kollidon, Alginic acid and its alkali metal salts, amorphous or also partially crystalline layered silicates (bentonites), polyacrylates, polyethylene glycols are, for example, the publications WO 98/40462 (Rettenmaier), WO 98/55583 and WO 98/55590 (Unilever) and WO 98/40463, DE 19709991 and DE 19710254 (Henkel). Reference is expressly made to the teaching of these writings. fragrances

As perfume oils or fragrances which form component (b), individual fragrance compounds, e.g. the synthetic products of the ester, ether, aldehyde, ketone, alcohol and hydrocarbon type are used. Fragrance compounds of the ester type are e.g. Benzyl acetate, phenoxyethyl isobutyrate, p-tert-butylcyclohexyl acetate, linalyl acetate, dimethylbenzylcarbinylacetate, phenylethyl acetate, linalylbenzoate, benzyl formate, ethylmethylphenylglycinate, allylcyclohexylpropionate, styrallyl propylate and benzylsalpionate. The ethers include, for example, benzyl ethyl ether, the aldehydes e.g. the linear alkanals with 8-18 C atoms, citral, citronellal, citronellyloxyacetaldehyde, cyclamenaldehyde, hydroxycitronellal, lilial and bourgeonal, to the ketones e.g. the ionones, α-isomethyl ionone and methyl cedryl ketone, the alcohols anethole, citronellol, eugenol, geraniol, linolool, 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. Such perfume oils can also contain natural fragrance mixtures as are available from plant sources, e.g. Pine, citrus, jasmine, patchouly, 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 berry oil, vetiver oil, olibanum oil, galbanum oil and labdanum oil as well as orange blossom oil, neroliol, orange peel oil and sandalwood oil.

Builder

The fragrance tablets according to the invention can furthermore contain, as optional component (c), inorganic and organic builder and co-builder substances, the inorganic builder substances mainly being zeolites, crystalline phyllosilicates, amorphous silicates and - where permissible - also phosphates, such as tripolyphosphate, for example , The fine-crystalline, synthetic and bound water-containing zeolite which is frequently used as a detergent builder is preferably zeolite A and / or P. As zeolite P, for example, zeolite MAP < ^R > (commercial product from Crosfield) is particularly preferred. However, zeolite X and mixtures of A, X and / or P and Y are also suitable. Of particular interest is also a cocrystallized sodium / potassium aluminum silicate made of zeolite A and zeolite X, which as VEGOBOND AX® (commercial product from Condea Augusta SpA) is commercially available. The zeolite can be used as a spray-dried powder or as an dried stabilized suspension that is still moist from its manufacture. In the event that the zeolite is used as a suspension, it may contain minor additions of nonionic surfactants as stabilizers, for example 1 to 3% by weight, based on zeolite, of ethoxylated Ci2-Ci8 fatty alcohols with 2 to 5 ethylene oxide groups, Ci2 -Ci4 fatty alcohols with 4 to 5 ethylene oxide groups or ethoxylated isotridecanols. 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 to 22% by weight, of bound water.

Suitable substitutes or partial substitutes for phosphates and zeolites are crystalline, layered sodium silicates of the general formula NaMSixθ2x + ryH2θ, 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 is 2, 3 or 4. Such crystalline layered silicates are described, for example, in European patent application EP 0164514 A1. Preferred crystalline phyllosilicates of the formula given are those in which M is sodium and x is 2 or 3. In particular, both β- and δ-sodium disilicate Na∑S ^' ^ Os-yH∑O are preferred, wherein β-sodium disilicate can be obtained, for example, by the method described in international patent application WO 91/08171. Further suitable layered silicates are known, for example, from patent applications DE 2334899 A1, EP 0026529 A1 and DE 3526405 A1. Their usability is not limited to a special composition or structural formula. However, smectites, in particular bentonites, are preferred here. Suitable sheet silicates, which belong to the group of water-swellable smectites, are, for example, those of the general formulas

(OH) 4Si8-yAl _y (MgxAI ₄ -x) 0 ₂ o Montmorrilonit (OH) ₄ Si ₈ -yAly (Mg6-zLiz) θ2o hectorite (OH) 4Si ₈ -yAly (Mg ₆ -z Al _z ) 0 ₂ o saponite

with x = 0 to 4, y = 0 to 2, z = 0 to 6. In addition, small amounts of iron can be incorporated into the crystal lattice of the layered silicates according to the above formulas. Furthermore, due to their ion-exchanging properties, the layered silicates can contain hydrogen, alkali, alkaline earth ions, in particular Na and Ca ²⁺ . The amount of water of hydration is usually in the range of 8 to 20% by weight and depends on the swelling condition or the type of processing. Useful layer silicates are known, for example, from US 3,966,629, US 4,062,647, EP 0026529 A1 and EP 0028432 A1. Layer silicates are preferably used which are largely free of calcium ions and strongly coloring iron ions due to an alkali treatment.

The preferred builder substances also include amorphous sodium silicates with a modulus Na :O: SiÜ2 from 1: 2 to 1: 3.3, preferably from 1: 2 to 1: 2.8 and in particular from 1: 2 to 1: 2.6 , which before delayed release 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 in X-ray diffraction experiments do not provide sharp X-ray reflections, as 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 deliver 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 amorphous silicates, which also have a delay in dissolution compared to conventional water glasses, are described, for example, in German patent application DE 4400024 A1. Compressed / compacted amorphous silicates, compounded amorphous silicates and overdried X-ray amorphous silicates are particularly preferred.

Of course, it is also possible to use the generally known phosphates as builders, provided that such use should not be avoided for ecological reasons. The sodium salts of orthophosphates, pyrophosphates and in particular tripolyphosphates are particularly suitable. Their content is generally not more than 25% by weight, preferably not more than 20% by weight, in each case based on the finished composition. In some cases, it has been shown that tripolyphosphates in particular, even in small amounts up to a maximum of 10% by weight, based on the finished agent, in combination with other builder substances lead to a synergistic improvement in the secondary washing ability.

Usable organic builders that come into question as co-builders are, for example, the polycarboxylic acids that 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 used for ecological reasons is not objectionable, 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. The acids themselves can also be used. In addition to their builder action, the acids typically also have the property of an acidifying component and thus also serve to set a lower and milder pH value of detergents or cleaning agents. Citric acid, succinic acid, glutaric acid, adipic acid, gluconic acid and any mixtures thereof can be mentioned in particular. Other suitable organic builder substances are dextrins, for example oligomers or polymers of carbohydrates, which can be obtained by partial hydrolysis of starches. The hydrolysis can be carried out by customary processes, for example acid-catalyzed or enzyme-catalyzed. They are preferably hydrolysis products with average molecular weights in the range from 400 to 500,000. A polysaccharide with a dextrose equivalent (DE) in the range from 0.5 to 40, in particular from 2 to 30, is preferred, DE being a customary measure for the reducing effect of a polysaccharide compared to dextrose, which has a DE of 100. Both maltodextrins with a DE between 3 and 20 and dry glucose syrups with a DE between 20 and 37 as well as so-called yellow dextrins and white dextrins with higher molar masses in the range from 2,000 to 30,000 can be used. A preferred dextrin is described in British patent application GB 9419091 A1 , The oxidized derivatives of such dextrins are their reaction products with oxidizing agents which are capable of oxidizing at least one alcohol function of the saccharide ring to the carboxylic acid function. Such oxidized dextrins and processes for their preparation are known, for example, from European patent applications EP 0232202 A1, EP 0427349 A1, EP 0472042 A1 and EP 0542496 A1 as well as from international patent applications WO 92/18542, WO 93/08251, WO 93/16110, WO 94 / 28030, WO 95/07303, WO 95/12619 and WO 95/20608 are known. An oxidized oligosaccharide according to German patent application DE 19600018 AI is also suitable. A product oxidized to Cβ of the saccharide ring can be particularly advantageous.

Other suitable cobuilders are oxydisuccinates and other derivatives of disuccinates, preferably ethylenediamine disuccinate. In this context, glycerol disuccinates and glycerol trisuccinates are also particularly preferred, as are described, for example, in US Pat. Nos. 4,524,009, 4,639,325, European Patent Application EP 0150930 A1 and Japanese Patent Application JP 93/339896. Suitable amounts for use in zeolite-containing and / or silicate-containing formulations are 3 to 15% by weight. Other usable organic cobuilders are, for example, acetylated hydroxycarboxylic acids or salts thereof, which may also be in lactone form and which have at least 4 carbon atoms and at least one hydroxyl group and a maximum contain two acid groups. Such cobuilders are described, for example, in international patent application WO 95/20029.

Suitable polymeric polycarboxylates are, for example, the sodium salts of polyacrylic acid or polymethacrylic acid, for example those with a relative molecular weight of 800 to 150,000 (based on acid and measured in each case against polystyrene sulfonic acid). Suitable copolymeric polycarboxylates are, in particular, those of acrylic acid with methacrylic acid and of acrylic acid or methacrylic acid with maleic acid. Copolymers of acrylic acid have been found to be particularly suitable Maleic acid proven to contain 50 to 90 wt .-% acrylic acid and 50 to 10 wt .-% maleic acid. Their relative molecular weight, based on free acids, is generally 5,000 to 200,000, preferably 10,000 to 120,000 and in particular 50,000 to 100,000 (measured in each case against polystyrene sulfonic acid). The (co) polymeric polycarboxylates can be used either as a powder or as an aqueous solution, with 20 to 55% by weight aqueous solutions being preferred. Granular polymers are usually subsequently mixed into one or more basic granules. Also particularly preferred are biodegradable polymers composed of more than two different monomer units, for example those which, according to DE 4300772 A1, as salts of acrylic acid and maleic acid as well as vinyl alcohol or vinyl alcohol derivatives or as DE 4221381 C2 as monomer salts of acrylic acid and the 2-alkylallylsulfonic acid and sugar derivatives. Further preferred copolymers are those which are described in German patent applications DE 4303320 A1 and DE 4417734 A1 and which preferably contain acrolein and acrylic acid / acrylic acid salts or acrolein and vinyl acetate as monomers. Also to be mentioned as further preferred builder substances are polymeric aminodicarboxylic acids, their salts or their precursor substances. Polyaspartic acids or their salts and derivatives are particularly preferred.

Other suitable builder substances are polyacetals, which can be obtained by reacting dialdehydes with polyolcarboxylic acids which have 5 to 7 carbon atoms and at least 3 hydroxyl groups, for example as described in European patent application EP 0280223 A1. Preferred polyacetals are obtained from dialdehydes such as glyoxal, glutaraldehyde, terephthalaldehyde and their mixtures and from polyol carboxylic acids such as gluconic acid and / or glucoheptonic acid.

surfactants

Anionic, nonionic, cationic, amphoteric and / or zwitterionic surfactants may also be present as additional optional components (component d) in the fragrance tablets, but preferably anionic surfactants or combinations of anionic and nonionic surfactants are present, which act as emulsifiers for the fragrances , Typical examples of anionic surfactants are soaps, alkylbenzene sulfonates, alkane sulfonates, olefin sulfonates, alkyl ether sulfonates, glycerol ether sulfonates, α-methyl ester sulfonates, sulfo fatty acids, alkyl sulfates, fatty alcohol ether sulfates, glycerol ether sulfates, hydroxymixed ether sulfates, fatty (amide) sulfate, monoglyl sulfate, monoglyl sulfate and dialkyl kylsulfosuccinate, reindeer mono- and dialkyl sulfosuccinamates, sulfotriglycerides, amide soaps, Ethercarbonsäu- and salts thereof, fatty acid taurides, N-acylamino acids such as acyl lactylates, acyl tartrates, acyl glutamates and acyl aspartates, alkyl oligoglucoside sulfates, protein fatty acid condensates (in particular vegetable Wheat-based products) and AI alkyl (ether) phosphates. If the anionic surfactants contain polyglycol ether chains, they can have a conventional, but preferably a narrow, homolog distribution. Typical examples of nonionic surfactants are fatty alcohol polyglycol ethers, alkylphenol polyglycol ethers, fatty säurepolyglycolester, fatty acid amide, fatty amine polyglycol ethers, alkoxylated triglycerides, mixed ethers and mixed formals, alk (en) yl oligoglycosides, fatty acid N-alkylglucamides, protein hydrolysates (in particular vegetable products based on wheat), polyol, Zuckerester , Sorbitan esters, polysorbates and amine oxides. If the nonionic surfactants contain polyglycol ether chains, they can have a conventional, but preferably a narrow, homolog distribution. Typical examples of cationic surfactants are, in particular, tetraalkylammonium compounds, such as, for example, dimethyldistearylammonium chloride or hydroxyethyl hydroxycetyldimmonium chloride (Dehyquart® E) or esterquats. Examples of suitable amphoteric or zwitterionic surfactants are alkyl betaines, alkyl amido betaines, aminopropionates, aminoglycinates, imidazolinium betaines and sulfobetaines. Alkyl sulfates or alk (en) yl oligoglucosides are preferably used.

Alkyl and / or alkenyl sulfates, which are also frequently referred to as fatty alcohol sulfates, are to be understood as meaning the sulfation products of primary and / or secondary alcohols, which preferably follow the formula (I)

R1O-SO3X (I)

in which R ^{1 represents} a linear or branched, aliphatic alkyl and / or alkenyl radical having 6 to 22, preferably 12 to 18 carbon atoms and X represents an alkali and / or alkaline earth metal, ammonium, alkylammonium, alkanolammonium or glucammonium. Typical examples of alkyl sulfates which can be used in the context of the invention are the sulfation products of capron alcohol, caprylic alcohol, capric alcohol, 2-ethylhexyl alcohol, lauryl alcohol, myristyl alcohol, cetyl alcohol, palmoleyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, arylselyl alcohol, elaidyl alcohol alcohol, gadoleyl alcohol, behenyl alcohol and erucyl alcohol and their technical mixtures, which are obtained by high pressure hydrogenation of technical methyl ester fractions or aldehydes from Roelen's oxosynthesis. The sulfation products can preferably be used in the form of their alkali metal salts and in particular their sodium salts. Alkyl sulfates based on Cieπβ tallow fatty alcohols or vegetable fatty alcohols of comparable carbon chain distribution in the form of their sodium salts are particularly preferred. In the case of branched primary alcohols, these are oxo alcohols, as are obtainable, for example, by converting carbon monoxide and hydrogen to alpha-olefins using the shop process. Such alcohol mixtures are commercially available under the trade names Dobanol® or Neodol®. Suitable alcohol mixtures are Dobanol 91®, 23®, 25®, 45®. Another possibility are oxo alcohols, such as those obtained by the classic Enichema or Condea oxoprocess by the addition of carbon monoxide and hydrogen to olefins become. These alcohol mixtures are a mixture of strongly branched alcohols. Such alcohol mixtures are commercially available under the trade name Lial®. Suitable alcohol mixtures are Lial 91®, 111®, 123®, 125®, 145®.

Alkyl and alkenyl oligoglycosides usually follow the formula (II),

R20- [G] _P (II)

in which R ^{2 is} an alkyl and / or alkenyl radical having 4 to 22 carbon atoms, G is a sugar radical having 5 or 6 carbon atoms and p is a number from 1 to 10. They can be obtained according to the relevant procedures in preparative organic chemistry. As representative of the extensive literature, reference is made here to the documents EP 0301298 A1 and WO 90/03977. The alkyl and / or alkenyl oligoglycosides can be derived from aldoses or ketoses with 5 or 6 carbon atoms, preferably glucose. The preferred alkyl and / or alkenyl oligoglycosides are thus alkyl and / or alkenyl oligoglucosides. The index number p in the general formula (II) indicates the degree of oligomerization (DP), ie the distribution of mono- and oligoglycosides, and stands for a number between 1 and 10. While p must always be an integer in a given compound and especially here can assume the values p = 1 to 6, the value p for a certain alkyl oligoglycoside is an analytically determined arithmetic parameter, which usually represents a fractional number. Alkyl and / or alkenyl oligoglycosides with an average degree of oligomerization p of 1.1 to 3.0 are preferably used. From an application point of view, preference is given to those alkyl and / or alkenyl oligoglycosides whose degree of oligomerization is less than 1.7 and in particular between 1.2 and 1.4. The alkyl or alkenyl radical R ² can be derived from primary alcohols having 4 to 11, preferably 8 to 10, carbon atoms. Typical examples are butanol, capronalcohol, caprylic alcohol, capric alcohol and undecyl alcohol and their technical mixtures, such as are obtained, for example, in the hydrogenation of technical fatty acid methyl esters or in the course of the hydrogenation of aldehydes from Roelen's oxosynthesis. Alkyl oligoglucosides of chain length Cβ-Cιo (DP = 1 to 3) are preferred, which are obtained as a preliminary step in the separation of technical Cβ-Cis coconut fatty alcohol by distillation and are contaminated with a proportion of less than 6% by weight of C12 alcohol as well as Alkyloligoglucos.de based on technical C9 / n-oxo alcohols (DP = 1 to 3). The alkyl or alkenyl radical R ² can also be derived from primary alcohols having 12 to 22, preferably 12 to 14, carbon atoms. Typical examples are lauryl alcohol, myristyl alcohol, cetyl alcohol, palmoleyl alcohol, stearyl alcohol, isostearyl alcohol, oleyl alcohol, elaidyl alcohol, petroselinyl alcohol, arachyl alcohol, gadoleyl alcohol, behenyl alcohol, erucyl alcohol, brassidyl alcohol and the technical mixtures described above. Alkyl oligoglucosides based on hydrogenated Ci∑ / u coconut alcohol with a DP of 1 to 3 are preferred. tableting

The new fragrance tablets are usually manufactured by press agglomeration. The particulate press agglomerates obtained can either be used directly as detergents or aftertreated and / or prepared beforehand by customary methods. The usual aftertreatments include, for example, powdering with finely divided ingredients from detergents or cleaning agents, preferably Buildem or Talcum Aerosilen, which generally further increases the bulk density. However, a preferred aftertreatment is also the procedure according to German patent applications DE 19524287 A1 and DE 19547457 A1, dust-like or at least fine-particle ingredients (the so-called fine particles) being adhered to the particulate process end products produced according to the invention, which serve as the core, and thus Means are created which have these so-called fines as an outer shell. In turn, this advantageously takes place by melting agglomeration. For melt agglomeration of the fine fractions, reference is expressly made to the disclosure in German patent applications DE 19524287 A1 and DE 19547457 A1. In the preferred embodiment of the invention, the perfume tablets have rounded corners and edges for storage and transport reasons. The base of these tablets can be circular or rectangular, for example. Multi-layer tablets, in particular tablets with 2 or 3 layers, which can also have different colors, are particularly preferred. Blue-white or green-white or blue-green-white tablets are particularly preferred. The tablets can also contain pressed and unpressed parts. Shaped articles with a particularly advantageous dissolution rate are obtained if the granular constituents, prior to pressing, have a proportion of particles which have a diameter outside the range from 0.02 to 6 mm of less than 20, preferably less than 10,% by weight. A particle size distribution in the range from 0.05 to 2.0 and particularly preferably from 0.2 to 1.0 mm is preferred.

Examples

Table 1 below shows a number of example formulations for the production of fragrance tablets.

Table 1

Perfume tablets (quantity as% by weight)

Claims

claims

1. Perfume tablets consisting of

(a) 69 to 99% by weight of disintegrants,

(b) 1 to 31% by weight of fragrances,

(c) 0 to 15% by weight of builders and

(d) 0 to 15% by weight of surfactants,

with the proviso that the quantities add up to 100% by weight.

2. Tablets according to claim 1, characterized in that they are made of

(a) 75 to 90% by weight of disintegrants,

(b) 4 to 8% by weight of fragrances,

(c) 3 to 7 wt% builders and

(d) 3 to 10% by weight of surfactants,

exist, with the proviso that the amounts add up to 100 wt .-%.

3. Tablets according to claims 1 and / or 2, characterized in that they contain disintegrants as component (a), which are selected from the group formed by optionally crosslinked polyvinylpyrrolidones, celluloses, carboxymethyl celluloses, carboxymethyl starches, and chitosans ,

4. Tablets according to at least one of claims 1 to 3, characterized in that they contain as component (b) fragrances which are selected from the group formed by benzyl acetate, phenoxyethyl isobutyrate, p-tert-butylcyclohexyl acetate, linalyl acetate, dimethyl - Benzylcarbinylacetat, Phenylethylacetat, Linalylbenzoat, Benzylformiat, Ethylmethylphenylglycinat, Allylcyclohexylpropionat, Styrallylpropionat, Benzylsalicylat, Citral, Citronellal, Citronellyloxyacetal- dehydrogen, Cyclamenaldehyd, Hydroxycitronololonolonolonolonolonolonalolonolonalolonalolonolonol, Lenzylalonolonolalonolonolonalolonolalonolonalolonolalonolonol, Ethylalonololonolonolalonolalonolalonolenolonol, Ethyl, Lenzylolonol, Ethyl, Benzol, Benzol,, , Phenylethyl alcohol, terpineol, unions and pinene.

5. Tablets according to at least one of claims 1 to 4, characterized in that they contain as component (c) builders which are selected from the group consisting of zeolites, crystalline layered silicates, amorphous silicates and phosphates.

6. Tablets according to at least one of claims 1 to 5, characterized in that they contain as component (d) surfactants which are selected from the group formed by alkyl and / or alkenyl sulfates and alkyl and / or alkenyl glycosides.