EP2113025A1

EP2113025A1 - Method for the production of particulate bleaching agent compositions

Info

Publication number: EP2113025A1
Application number: EP08701368A
Authority: EP
Inventors: Matthias Sunder; Peter Schmiedel; Heinz-Jürgen VÖLKEL
Original assignee: Henkel AG and Co KGaA
Current assignee: Henkel AG and Co KGaA
Priority date: 2007-01-22
Filing date: 2008-01-10
Publication date: 2009-11-04
Anticipated expiration: 2028-01-10
Also published as: PL2113025T3; ES2401396T3; WO2008090025A1; US8093198B2; US20090270303A1; EP2113025B1; DE102007004054A1

Abstract

The production of bleaching agent granulates is proposed, wherein a particulate peroxide compound and a water soluble polymer which can be ionotropically cross-linked are granulated into a primary granulate using a liquid binding agent containing water, and the primary granulate is brought into contact with a cross-linking agent for the water soluble polymer which can be ionotropically cross-linked. A particle so obtained can be worked into liquid detergents and cleaning agents containing water and remain stable.

Description

"Process for the preparation of particulate bleach compositions"

The present invention relates to a process for the preparation of peroxygen compound-containing granules and the granules obtainable in this way. In addition, the present invention relates to the use of these granules as a bleaching or bleaching component, in particular for their use in particulate or liquid detergents and cleaners, and for their preparation.

The previously used usually in detergents particulate bleaching components, such as alkali metal perborates or percarbonates, are very sensitive to moisture, that is they lose, as well as solid detergents and cleaners always have a certain water content or a water access from the air during storage is unavoidable, due to the loss of active oxygen often within a short time their bleaching effect, if the bleach component is not, for example by applying a coating layer, protected against moisture.

Peroxycarboxylic acids, in particular imidoperoxycarboxylic acids whose most important representative is phthalimidoperoxycaproic acid (PAP), are likewise known as bleaching components for detergents and cleaners; Although these are less susceptible to hydrolysis than the said inorganic compounds, but their storage stability is not sufficient to ensure long-term applicability of the corresponding washing or cleaning agent without concomitant loss of activity.

Because of the disadvantages associated with changing the detergent formulation due to the degradation of the bleach component such as imidoperoxycarboxylic acid, especially PAP, the prior art has attempted to effectively encapsulate the imidoperoxycarboxylic acids (eg PAP) so that it can not come into contact with the other components of the detergent formulation. Thus, the European Patent EP 0 510 761 Bl describes a process for encapsulating detergent additives in general, such. As enzymes, bleach activators, bleach catalysts and bleaches, including these also PAP, being used as a protective shell for encapsulating a wax whose melting point is between 40 ⁰ C and 50 ⁰ C. The wax-coated particles are produced by spraying on the molten wax. In this case, the wax must first be heated to temperatures above its melting point, which may be disadvantageous with respect to thermally sensitive substances to be encapsulated. This method also has the disadvantage that the active substance is released only at temperatures above the melting point of the wax used - ie only above temperatures between 40 ⁰ C and 50 ⁰ C - which is today's consumer relationship or user requirements is not fair, before the background of the development of efficient washing and cleaning agent formulations and the saving of energy costs - often at lower temperatures, especially at about 30 ⁰ C to be washed. Furthermore, a wax with a high melting point has the disadvantage that it causes residues on the laundry, especially at low temperatures, since it is not completely emulsified at these temperatures.

European Patent EP 0 653 485 Bl relates to active ingredient-containing capsule compositions which contain bleaching agents, such as, for example, bleaches. B. may contain PAP and in which the active ingredient is present in the capsule interior as a dispersion in oil. The preparation of these capsules, the shell of which is formed from hydrophilic polymers which become soluble only during the washing process or the application, requires a complicated emulsifying process, which is not easy to carry out technically.

European Patent Application EP 0 816 481 A2 discloses a bleach granule which contains a peracid such as, for example, PAP and an agglomeration aid in a weight ratio of 1: 2 to 1:50, and citric acid monohydrate as the exotherm-controlling active ingredient. European Patent EP 0 695 343 B1 relates to amido peroxycarboxylic acid particles which have been coated by spraying a water-soluble salt in a fluidized bed and contain less than 2% by weight of water. Against this background, the object of the present invention is therefore to provide peroxygen compounds, including imidoperoxycarboxylic acids, in particular phthalimidoperacycaproic acid (PAP), in a very simple process in a storage-stable particle form.

This object is achieved by a process for the preparation of bleach granules, which comprises granulating a particulate persistence compound and an ionotropically crosslinkable water-soluble polymer by means of a water-containing liquid binder to a primary granulate and the primary granules with a crosslinking agent for the ionotropic crosslinkable brings water-soluble polymer into contact.

Suitable peroxygen compounds are those of inorganic nature, such as alkali metal perborates, percarbonates and / or persulfates, as well as those of organic nature, such as diacyl peroxides, peroxycarboxylic acids and / or their salts. The peroxycarboxylic acids include amido and imidoperoxycarboxylic acids. Preferred imidoperoxycarboxylic acid is phthalimidoperoxycaproic acid. This is known, for example, from the European patents EP 0 349 940 and EP 0 325 328. It is commercially available, for example, in hydrous form under the trade name Eureco®, such as normally produced in relatively large crystals that can cake together in the course of their preparation from aqueous systems. It can serve in this form or in any other particle form, for example as finely ground powder, as starting material for the process according to the invention. As a result of the preparation, minor amounts of the corresponding imidocarboxylic acid may also be present in the imidoperoxycarboxylic acid used which need not be removed in order to carry out the process according to the invention.

Diacyl peroxides are compounds of the general formula R'-C (O) -OOC (O) -R "in which R 'and R" are organic radicals, preferably an aliphatic diacyl peroxide in which R' and R each independently represents an alkyl group having 8 to 20 carbon atoms. Preferably, the diacyl peroxide has a melting point of more than 40 ° C. Particularly preferred diacyl peroxides are di-n- decanoyl peroxide (R '= R "= n-nonyl), di-n-undecanoyl peroxide (R' = R" = n-decyl) or dilauroyl peroxide (R '= R "= n-undecyl) and mixtures thereof.

If desired, the peroxygen compound can also be used in admixture with conventional stabilizers or phlegmatizers, such as boric acid, citric acid and / or alkali citrates. Amounts of peroxygen compound, in particular imidoperoxycarboxylic acid of up to 95 wt .-%, in particular 50 wt .-% to 80 wt .-%, each based on the total particle, are preferred.

The binder is preferably selected from water and its mixture with inorganic salts, nonionic surfactants, anionic surfactants, polymeric glycols, polymers and copolymers of acrylic acid, methacrylic acid and / or maleic acid, which may also be in the form of their sodium, potassium or ammonium salts, as well as their mixtures. Suitable inorganic salts are, in particular, those whose presence has an influence on the granule strength or hardness, for example alkali metal silicate. It is the binder, if it is not only water, preferably as an aqueous solution, in particular a water content of 30 wt .-% to 99 wt .-%. has, a.

In a preferred embodiment of the invention, the water-containing binder, which may be composed solely of water, is metered into the mixer as a constituent of a preparation which contains the particulate peroxygen compound and / or a preparation which contains the ionotropically crosslinkable polymer. For the execution of the former variant, which is preferably used in the processing of less water-soluble or water-insoluble peroxygen compounds, for example, the use of a commercially available hydrous imidoperoxycarboxylic acid. in question. If desired, the binder may also contain the ionotropically crosslinkable polymer, or an aqueous solution of the crosslinkable polymer may constitute the binder.

The binder or the preparation of binder and crosslinkable polymer are preferably applied to the moving material by means of nozzles (peroxygen compound and crosslinkable polymer or only peroxygen compound) sprayed. The spraying can be carried out by means of one-component or high-pressure spray nozzles, two-component spray nozzles or three-component spray nozzles. For spraying with Einstoffsprühdüsen the application of a high melt pressure is required while the spraying takes place in two-component spray nozzles by means of a Preßluftstromes. Spraying with two-component spray nozzles is more favorable, in particular with regard to possible clogging of the nozzle, but is more complicated due to the high compressed air consumption. As a modern development, there is the three-component spray nozzles, which in addition to the Preßluftstrom for atomization another air ducting system to prevent clogging and dripping at the nozzle. Within the scope of the process according to the invention, the use of dual-substance spray nozzles is particularly preferred. Preferably, the liquid components are sprayed as evenly as possible on the particulate material.

In the process according to the invention, it is possible to use all low, moderate and high-shear mixers known to the person skilled in the art. Suitable mixers are free-fall mixers, push and throw mixers, gravity mixers and pneumatic mixers. Preferred free-fall mixers are drum, tumble, cone, double cone and V mixers. Shear mixers refer to mixers with moving mixing tools in which the mixing tools move at a low speed. Examples of suitable mixers are screw mixers and spiral belt mixers. High-speed mixers with agitated mixing tools are referred to as litter mixers and include, for example, paddle, ploughshare, paddle and ribbon mixers. As a mixer with moving container and moving mixing tools preferably plate mixer and countercurrent intensive mixer are used. Suitable gravity mixers include mixed silos, bunkers or belts. In turn, mixed silos, fluidized bed mixers and jet mixers are considered suitable pneumatic mixers.

With particular preference, the erfmdungs contemporary method is carried out in a litter mixer, in particular a plowshare mixer, or a pneumatic fluidized bed. When using a fluidized bed mixer is particularly advantageous that a desired degree of drying of the granules can be adjusted without additional equipment. If other types of mixers are used, the primary granules and / or the finished granulate may, if desired, be transferred to a fluidized-bed dryer and treated with the aid of which is adjusted to a degree of drying which does not yet result from the actual granulation process.

If desired, the granulation leading to the primary granulate can also be carried out by a compaction step. The compacting step is preferably carried out with the aid of a roller press or an extruder. Preferably, such pressures are used that the resulting granules have a bulk density in the range of 600 g / l to 1500 g / l, in particular 750 g / l to 1200 g / l.

The primary granules are then contacted with a crosslinking agent which can crosslink the ionotropic crosslinkable polymer. This can be done by adding the crosslinking agent to the in a mixer or a fluidized bed, in which or possibly already the granulation has taken place, located primary granules, wherein the crosslinking agent is preferably introduced as an aqueous solution, or the primary granules is in an aqueous solution of the crosslinking agent introduced, then removed therefrom, for example by filtration, and dried if desired.

It is preferable that the ionotropic crosslinkable polymer is selected from a material selected from the group consisting of carrageenan, alginate, gellan gum and pectic acid, and mixtures thereof. Especially preferred is ala- alginate.

Alginate is a naturally occurring salt of alginic acid and occurs in brown algae (Phaeophycea) as a cell wall component. Alginates are acidic, carboxy group-containing polysaccharides with a relative molecular weight MR of about 200,000, consisting of D-mannuronic acid and L-guluronic acid in different ratios, which are linked via 1,4-glycosidic bonds. The sodium, potassium, ammonium and magnesium alginates are readily soluble in water. The viscosity of alginate solutions depends inter alia on the molecular weight and the counterion. For example, calcium alginates form thermo-irreversible gels at certain proportions. Sodium alginates give very viscous solutions with water and can be cross-linked by interaction with di- or trivalent metal ions such as Ca ²⁺ . Carrageenan is an extract of the red algae {Chondrus crispusu. Gigartina stellata). In the presence of K ⁺ ions or Ca ²⁺ ions, carrageenan crosslinks.

Gellan gum is an unbranched anionic microbial heteroexopolysaccharide having a tetrasaccharide repeat unit consisting of the monomers glucose, glucuronic acid and rhamnose, wherein about each repeat unit is esterified with an L-glycerate and every other repeat unit is esterified with an acetate. Gellan gum cross-links in the presence of K ⁺ ions, nations, Ca ²⁺ ions or Mg ²⁺ ions.

Exposure of alkali or pectinase to pectin produces pectosic acid and then pectic acid. The basic building block of pectic acid is poly-D-galacturonic acid. Pectic acid forms a colorless mass, hardly in cold water, in hot, heavy, in alcohol not, in the solutions of neutral salts easily soluble mass; it reacts and tastes sour and forms with the alkalis soluble, otherwise insoluble, gelatinous salts. Pectic acid can be crosslinked by interaction with di- or trivalent metal ions; By addition of calcium ions to the galacturonic acid units, the insoluble calcium pectate is formed.

These materials can be crosslinked particularly well with aqueous solutions of said cations to crosslinked insoluble gels; preferably in this no halides are present as counter anions, but for example nitrate, sulfate and / or phosphate.

For aesthetic reasons, it may be desirable for the granules to be colored. For this purpose, the graule may contain one or more coloring agent (s) such as pigment or dye. This preferably originates from an aqueous crosslinking agent solution which contains pigment or dye, in particular based on phthalocyanine.

The particle size of the granules obtainable by the process according to the invention is preferably in the range from 1 to 3 mm. If desired, the granules thus obtainable may be coated with a wrapping material, preferably a wrapping with paraffin wax. Paraffin wax generally represents a complex mixture without sharp melting point. For characterization is usually determined its melting range by differential thermal analysis (DTA), as described in "The Analyst" 87 (1962), 420, and / or its solidification point. This is the temperature at which molten material passes from the liquid to the solid state by slow cooling. Preferably, waxes are used, which solidify in the range of 20 ⁰ C to 70 ° C. It should be noted that paraffin wax mixtures which appear solid at room temperature may contain different proportions of liquid paraffin. Particularly preferred paraffin wax mixtures have at 40 ⁰ C a liquid fraction of at least 50 wt .-%, particularly from 55 wt .-% to 80 wt .-%, and at 60 ° C a liquid fraction of at least 90 wt .-% to. It is also preferred if the paraffins contain the lowest possible volatile components. Preferred Paraffmwachse contain less than 1 wt .-%, in particular less than 0.5 wt .-% at 110 ° C and atmospheric pressure vaporizable fractions. Particularly suitable paraffin waxes according to the invention can be obtained, for example, under the trade names Lunaflex® from Füller and Deawax® from DEA Mineralöl AG. The particularly preferred paraffin waxes are those which melt in the range from 40 ⁰ C to 65 ° C, in particular from about 50 ⁰ C to 60 ° C.

Paraffin is preferably applied in such amounts that the coated particles to 2 wt .-% to 30 wt .-%, in particular 5 wt .-% to 25 wt .-% and particularly preferably 7.5 wt .-% to 20 wt .-% consist of the wrapping material. Preferably, enveloped particles are prepared by spraying a fluidized bed of the particles to be coated with a melt or optionally a preferably aqueous emulsion, dispersion or slurry of paraffin, if present, removing the water by evaporation and / or passing the molten coating material through Solidifies cooling and discharges the coated particles in principle conventional manner from the fluidized bed. Preferred in the paraffin wax coating is a melt coating in which the paraffin is heated to a temperature which is 5 ° C to 40 ° C above its melting point, and on Particles is applied, which have a temperature below the paraffin freezing point. Preferably, they are cooled by the then a correspondingly low temperature fluidizing means, so that the paraffin wax solidifies on the particles.

Particles obtainable by the process according to the invention are preferably used as bleach or bleach component, in particular in detergents and cleaners, and for their preparation. Detergents according to the invention comprise a granulate according to the invention preferably in amounts of 0.1% by weight to 25% by weight, in particular 1% by weight to 10% by weight, and may additionally contain all other ingredients customary in such agents. Solid compositions according to the invention preferably have a bulk density in the range from 400 g / l to 1000 g / l.

It is of particular advantage that the granules according to the invention can also be used in water-containing liquid agents. A further subject of the invention is therefore an aqueous liquid washing or cleaning agent containing surfactant and bleach granules obtainable by the process according to the invention.

In addition to the inventive yarn formulations, the detergents or cleaners contain surfactant (s), it being possible to use anionic, nonionic, cationic and / or amphoteric surfactants. From an application point of view, preference is given to mixtures of anionic and nonionic surfactants. The total surfactant content of the liquid washing and cleaning agent is preferably below 40% by weight and more preferably below 35% by weight, based on the total liquid detergent and cleaning agent. It preferably contains at least one additional active ingredient which is not part of the granules selected from the group comprising optical brighteners, complexing agents, bleach activators, dyes, fragrances, antioxidants, builders, enzymes, enzyme stabilizers, antimicrobial agents, graying inhibitors, anti redeposition agents, pH Surfactants, soil release polymers, color transfer inhibitors, electrolytes, conditioning oils, abrasives, skin care agents, foam inhibitors, vitamins, proteins, preservatives, detergency boosters, pearlescers, and UV absorbers, and mixtures thereof. 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 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. Among the preferred ethoxylated alcohols, for example C _12- i include ₄ alcohols containing 3 EO, 4 EO or 7 EO, π-alcohol containing 7 EO, C _13-15 alcohols containing 3 EO, 5 EO, 7 EO or 8 EO, _C12-18 alcohols containing 3 EO, 5 EO or 7 EO and mixtures thereof, such as mixtures of C _12-14 alcohol with 3 EO and C ₂ i ₈ alcohol containing 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 statistically distributed. Such products are available by the simultaneous action of ethylene and propylene oxide on fatty alcohols.

In addition, as further nonionic surfactants and alkyl glycosides of the general formula RO (G) _x can be used in which R is a primary straight-chain or methyl-branched, especially 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 olive degree of gomerization x, which indicates the distribution of monoglycosides and oligoglycosides, is any number between 1 and 10; preferably x is 1.2 to 1.4.

Another class of preferred nonionic surfactants 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 from 1 to 4 carbon atoms in the alkyl chain, especially fatty acid methyl esters.

Nonionic surfactants of the amine oxide type, for example N-cocoalkyl-N, N-dimethylamine oxide and N-tallowalkyl-N, N-dihydroxyethylamine oxide, and the fatty acid alkanolamides may also be suitable. The amount of these nonionic surfactants is preferably not more than that of the ethoxylated fatty alcohols, especially not more than half thereof.

Further suitable surfactants are polyhydroxy fatty acid amides of the formula (2),

R-CO-N- [Z] (2)

in which RCO is an aliphatic acyl radical having 6 to 22 carbon atoms, R * is hydrogen, an alkyl or hydroxyalkyl radical having 1 to 4 carbon atoms and [Z] is a linear or branched polyhydroxyalkyl radical having 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 AE <anolamine 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 (3), Ri-OR ² R-CO-N- [Z] (3)

in the R is a linear or branched alkyl or alkenyl radical having 7 to 12 carbon atoms, R ^{1 is} a linear, branched or cyclic alkyl radical or an aryl radical having 2 to 8 carbon atoms and R ^{2 is} a linear, branched or cyclic alkyl radical or an aryl radical or an oxyalkyl group having 1 to 8 carbon atoms, wherein Ci _-4 alkyl or phenyl groups being preferred, and [Z] is a linear polyhydroxyalkyl residue, whose alkyl chain is substituted with at least two hydroxyl groups, or alkoxylated, preferably ethoxylated or propoxylated derivatives this rest.

[Z] is preferably obtained by reductive amination of a sugar, for example glucose, fructose, maltose, lactose, galactose, mannose or xylose. The N-alkoxy- or N-aryloxy-substituted compounds can then be converted into the desired polyhydroxy fatty acid amides by reaction with fatty acid methyl esters in the presence of an alkoxide as catalyst.

The content of nonionic surfactants is in the liquid detergents and cleaners preferably 5 to 30 wt .-%, preferably 7 to 20 wt .-% and in particular 9 to 15 wt .-%, each based on the total agent.

As anionic surfactants, for example, those of the sulfonate type and sulfates are used. Suitable surfactants of the sulfonate type are preferably C9-i ₃ alkyl benzene sulfonates, olefin sulfonates, ie mixtures of alkene and hydroxyalkane sulfonates, and the disulfonates obtained, for example, from C ₁₂ is monoolefins with a terminal or internal double bond by sulfonation with gaseous sulfur trioxide and subsequent alkaline or acidic hydrolysis of the Sulfonierungsprodulcte into consideration. Alkanesulfonates which are obtained from C _12-18 -alkanes, for example by sulfochlorination or sulfoxidation with subsequent hydrolysis or neutralization, are also suitable. Likewise suitable are the esters of .alpha.-sulfo fatty acids (ester sulfonates), for example the .alpha.-sulfonated methyl esters of hydrogenated coconut, palm kernel or tallow fatty acids. Further suitable anionic surfactants are sulfonated fatty acid glycerol esters. Fatty acid glycerol esters are the mono-, di- and triesters and mixtures thereof, as obtained in the preparation 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 sulfonated 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.

The alk (en) ylsulfates are the alkali metal salts and, in particular, the sodium salts of the sulfuric monoesters of C ₁₀ -15 fatty alcohols, for example coconut fatty alcohol, tallow fatty alcohol, lauryl, myristyl, cetyl or stearyl alcohol or the C ₁₀ -C ₂₀ oxo alcohols and those half-esters of secondary alcohols of these chain lengths are preferred. Also preferred are alk (en) ylsulfates of said chain length, which contain a synthetic, produced on a petrochemical basis straight-chain alkyl radical, which have an analogous degradation behavior as the adequate compounds based on oleochemical raw materials. From washing technical literesse the C ₁₂ -C ₁₆ - alkyl sulfates and C ₁₂ -C ₁₅ alkyl sulfates as well as C ₁₄ -C ₁₅ alkyl sulfates are preferred. 2,3-Allcylsulfate which can be obtained as commercial products from Shell Oil Company under the name DAN ^®, are suitable anionic surfactants.

Also, the sulfuric monoesters of ethoxylated with 1 to 6 moles of ethylene oxide straight-chain or branched C _7-21 -AlkOhOIe, such as 2-methyl-branched Cg.π alcohols having an average of 3.5 moles of ethylene oxide (EO) or C _12-18 fatty alcohols with 1 to 4 EO, are suitable. Due to their high foaming behavior, they are only used in detergents in relatively small amounts, for example in amounts of from 1 to 5% by weight.

Further 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 and in particular ethoxylated fatty alcohols. Preferred sulfosuccinates contain C _8-18 fatty alcohol residues or mixtures of these. Especially preferred sulfosuccinone te contain a fatty alcohol residue, which is derived from ethoxylated fatty alcohols, which in themselves constitute nonionic surfactants. Sulfosuccinates, whose fatty alcohol residues are derived from ethoxylated fatty alcohols with a narrow homolog distribution, are again particularly preferred. Likewise, it is also possible to use alk (en) yl-succinic acid having preferably 8 to 18 carbon atoms in the alk (en) yl chain or salts thereof.

Particularly preferred anionic surfactants are soaps. Suitable are saturated and unsaturated fatty acid soaps, such as the salts of lauric acid, myristic acid, palmitic acid, stearic acid, (hydrogenated) erucic acid and behenic acid and, in particular, soap mixtures derived from natural fatty acids, for example coconut, palm kernel, olive oil or tallow fatty acids.

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

The content of preferred liquid washing or cleaning agents to anionic surfactants is 2 to 30 wt .-%, preferably 4 to 25 wt .-% and in particular 5 to 22 wt .-%, each based on the total agent.

The viscosity of the liquid detergents or cleaners can be measured by conventional standard methods (for example Brookfield Viscometer LVT-II at 20 rpm and 20 ° C., spindle 3) and is preferably in the range from 500 to 5000 mPas. Preferred agents have viscosities from 700 to 4000 mPas, with values between 1000 and 3000 mPas being particularly preferred.

In addition to the granules and to the surfactant (s), the detergents or cleaners may contain other ingredients that further improve the performance and / or aesthetic properties of the liquid detergent and cleaning agent. In the context of the present invention, preferred agents additionally contain the Capsules and to the surfactant (s) one or more substances from the group of builders, bleach activators, enzymes, electrolytes, nonaqueous solvents, pH adjusters, fragrances, perfume carriers, fluorescers, dyes, hydrotopes, foam inhibitors, silicone oils, anti redeposition agents, optical brighteners, Graying inhibitors, anti-shrinkage agents, anti-crease agents, color transfer inhibitors, antimicrobial agents, germicides, fungicides, antioxidants, corrosion inhibitors, antistatic agents, ironing aids, repellents and impregnating agents, swelling and anti-slip agents and UV absorbers. If the capsules essential to the invention contain a strongly effective oxidizing agent such as, for example, PAP, the presence of bleach activator and antimicrobial agent as well as germicide and fungicide can be dispensed with.

Suitable builders which may be present in the detergents or cleaners are in particular silicates, aluminum silicates (in particular zeolites), carbonates, salts of organic di- and polycarboxylic acids and mixtures of these substances.

Suitable crystalline layered sodium silicates have the general formula NaMSi _x O _2x + i H 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. Preferred crystalline layered silicates of the formula given are those in which M is sodium and x assumes the values 2 or 3. In particular, both β- and δ-sodium disilicates Na ₂ Si ₂ O ₅ .yH ₂ O are preferred.

It is also possible to use amorphous sodium silicates with a Na ₂ O: SiO ₂ modulus of 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 Delayed and have secondary washing properties. The dissolution delay compared with conventional amorphous sodium silicates may have been caused in various ways, for example by surface treatment, compounding, compaction / densification 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 yield sharp X-ray reflections typical of crystalline substances, but at best one or more maxima of the scattered X-rays, which are several angstroms in width. have transmission angle. However, it may well even lead to particularly good builder properties if the silicate particles give blurred or even sharp diffraction maxima in electron diffraction experiments. This is to be interpreted as meaning that the products have microcrystalline regions of size 10 to a few hundred nm, with values of up to a maximum of 50 nm and in particular up to a maximum of 20 nm being preferred. Particularly preferred are compacted / compacted amorphous silicates, compounded amorphous silicates and overdried X-ray amorphous silicates.

The finely crystalline, synthetic and bound water-containing zeolite is preferably zeolite A and / or P. As zeolite P, zeolite MAP® (commercial product from Crosfield) is particularly preferred. Also suitable, however, are zeolite X and mixtures of A, X and / or P. Commercially available and preferably usable in the context of the present invention is, for example, a cocrystal of zeolite X and zeolite A (about 80% by weight of zeolite X) which is sold by SASOL under the brand name VEGOBOND AX ^® and by the formula),

nNa ₂ O ^■ (ln) K ₂ O ^' Al ₂ O ₃ ^• (2 - 2.5) SiO ₂ ^' (3.5-5.5) H ₂ O n = 0.90-1.0

can be described. The zeolite can be used as a spray-dried powder or else as undried, still moist, stabilized suspension of its preparation. 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 wt .-%, based on zeolite, of ethoxylated C ^ -C ^ fatty alcohols having 2 to 5 ethylene oxide groups , C ₁₂ -C ₄ fatty alcohols having 4 to 5 ethylene oxide groups or ethoxylated isotridecanols. Suitable zeolites have an average particle size of less than 10 μm (volume distribution, measuring method: Coulter Counter) and preferably contain 18 to 22% by weight, in particular 20 to 22% by weight, of bound water.

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

In order to achieve an improved bleaching effect of water-H ₂ O ₂ delivering compounds when washing at temperatures of 60 ° C and below, bleach activators can be incorporated into the detergents and cleaners. As bleach activators, it is possible to use 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 stated C atom number and / or optionally substituted benzoyl groups. Preference is given to polyacylated alkylenediamines, in particular tetraacetylethylenediamine (TAED), _5- acylated triazine derivatives, in particular 1,5-diacetyl-2,4-dioxohexahydro-1,3,5-triazine (DADHT), acylated glycolurils, in particular tetraacetylglycoluril (TAGU), N-acylimides, in particular N-nonanoylsuccinimide (NOSI), acylated phenolsulfonates, in particular n-nonanoyl or isononanoyloxybenzenesulfonate (n- or iso -NOBS), carboxylic anhydrides, in particular phthalic anhydride, acylated polyhydric alcohols, in particular triacetin, ethylene glycol diacetate and 2,5- diacetoxy-2,5-dihydrofuran.

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

A liquid washing or cleaning agent according to the invention preferably contains a thickener. The thickener may, for example, a polyacrylate thickener, xanthan gum, gellan gum, guar gum, alginate, carrageenan, carboxymethylcellulose, bentonites, Wellan gum, locust bean gum, agar-agar, tragacanth, gum arabic, pectins, polyoses, starch, dextrins, gelatin and casein. But also Elelctrolyte or modified natural substances such as modified starches and celluloses, examples which may be mentioned here carboxymethylcellulose and other cellulose ethers, hydroxyethyl and propyl cellulose and gum ethers, can be used as a thickener.

The polyacrylic and polymethacrylic thickeners include, for example, the high molecular weight homopolymers of acrylic acid crosslinked with a polyalkenyl polyether, in particular an allyl ether of sucrose, pentaerythritol or propylene (INCI name according to the International Dictionary of Cosmetic Ingredients of The Cosmetic, Toiletry and Fragrance Association (CTFA) ": carbomer), also referred to as carboxyvinyl polymers. Such polyacrylic acids are available, inter alia, from 3V Sigma under the trade name Polygel®, for example Polygel DA, and from BF Goodrich under the trade name Carbopol®, for example Carbopol 940 (molecular weight about 4,000,000), Carbopol 941 (molecular weight about 250,000) or Carbopol 934 (molecular weight about 3,000,000). Furthermore, the following acrylic acid copolymers are included: (i) Copolymers of two or more monomers from the group of acrylic acid, methacrylic acid and their simple ester, preferably formed with C 1-4 -alkanols (INCI acrylates copolymer), for example the copolymers of methacrylic acid, Butyl acrylate and methyl methacrylate (CAS designation according to Chemical Abstracts Service: 25035-69-2) or of butyl acrylate and methyl methacrylate (CAS 25852-37-3) and the example of the Fa. Rohm & Haas under the trade names Aculyn® and Acusol® and the company Degussa (Goldschmidt) under the trade name Tego® polymer are available, for example the anionic non-associative polymers Aculyn 22, Aculyn 28, Aculyn 33 (crosslinked), Acusol 810, Acusol 820, Acusol 823 and Acusol 830 (CAS 25852-37 -3); (ii) crosslinked high molecular weight acrylic acid copolymers, such as those crosslinked with an allyl ether of sucrose or pentaerythritol copolymers of Cio _-3 o-alkyl acrylates with one or more monomers from the group of acrylic acid, methacrylic acid and their simple, preferably with Ci _-4 - Alkanols formed, esters (INCI Acrylates / Q ₃₀ Alkyl Acrylate Crosspolymer) include and which are available, for example, from the company. BF Goodrich under the trade name Carbopol®, for example, the hydrophobic Carbopol ETD 2623 and Carbopol 1382 (INCI Acrylates / Cio _-3O Alkyl Acrylate Crosspolymer) and Carbopol Aqua 30 (formerly Carbopol EX 473).

Another preferred polymeric thickener is xanthan gum, a microbial anionic heteropolysaccharide produced by Xanthomonas campestris and some other species under aerobic conditions and having a molecular weight of from 2 to 15 million daltons. Xanthan is formed from a chain of β-1,4-linked glucose (cellulose) with side chains. The structure of the subgroups consists of glucose, mannose, glucuronic acid, acetate and pyruvate, the number of pyruvate units determining the viscosity of the xanthan gum.

Xanthan gum can be described by the following formula (1):

Basic unit of xanthan gum

Xanthan gum is available, for example, from Kelco under the trade names Keltrol® and Kelzan® or also from Rhodia under the trade name Rhodopol®. Preferred aqueous liquid detergents or cleaners contain, based on the total agent, from 0.01 to 3% by weight and preferably from 0.1 to 1% by weight of thickener. The amount of thickener used depends on the type of thickener and the desired degree of thickening.

The aqueous liquid washing or cleaning agents may contain enzymes, optionally in encased or encapsulated form. Suitable enzymes are in particular those from the classes of hydrolases such as proteases, esterases, lipases or lipolytic enzymes, amylases, cellulases or other Glykosylhydro lases and mixtures of said enzymes in question. All of these hydrolases in the wash contribute to the removal of stains such as proteinaceous, greasy or starchy stains and graying. Cellulases and other glycosyl hydrolases can also contribute to color retention and to increasing the softness of the fabric by removing pilling and micro goggles. Oxireductases can also be used for bleach amplification or for inhibiting color transfer. Particularly suitable are bacterial strains or fungi such as Bacillus subtilis, Bacillus licheniformis, Streptomyceus griseus and Humicola insolens derived enzymatic agents. Preferably, subtilisin-type proteases and in particular proteases derived from Bacillus lentus are used. In this case, enzyme mixtures, for example from protease and amylase or protease and lipase or lipolytic enzymes or protease and cellulase or from cellulase and lipase or lipolytic enzymes or from protease, amylase and lipase or lipolytic enzymes or protease, lipase or lipolytic enzymes and cellulase, but in particular protease and / or lipase-containing mixtures or mixtures with lipolytic enzymes of particular interest. Examples of such lipolytic enzymes are the known cutinases. Peroxidases or oxidases have also proved suitable in some cases. Suitable amylases include in particular α-amylases, iso-amylases, pullulanases and pectinases. As cellulases are preferably cellobiohydrolases, endoglucanases and ß-glucosidases, which are also called cellobiases, or mixtures thereof used. As different cellulase types through their CMCase and avicelase activities can be set by targeted mixtures of cellulases desired activities.

The enzymes may be adsorbed to carriers to protect against premature degradation. The proportion of the enzymes, enzyme mixtures or enzyme granules in the detergent or cleaner composition may be, for example, about 0.1 to 5% by weight, preferably 0.12 to about 2.5% by weight.

As Elelctrolyte 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 phosphates and sulfates. From a production point of view, the use of Na ₂ SO ₄ or MgSO ₄ in the compositions is preferred. The proportion of electrolytes in the compositions is usually 0.5 to 20% by weight.

Non-aqueous solvents that can be used in the liquid detergents and cleaners, for example, from the group of monohydric or polyhydric alcohols, alkanolamines or glycol ethers, provided that they are miscible in the specified concentration range with water. 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, diisopropylene 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 can be used in the liquid detergents and cleaners in amounts between 0.5 and 15 wt .-%, but preferably below 12 wt .-% and in particular below 9 wt .-%.

In order to bring the pH of the liquid detergents and cleaners into the desired range, the use of pH adjusters may be indicated. Can be used here are all known acids or alkalis, unless their use for technical application or environmental reasons or for reasons of consumer protection prohibits. Usually, the amount of these adjusting agents does not exceed 7% by weight of the total formulation. Preferably, liquid agents according to the invention have an acidic pH of, in particular, from pH 3.5 to pH 6.5. If desired, their liquid phase may also be neutral to slightly alkaline, for example up to pH 9.5. If desired, water may be present in inventive compositions in amounts of up to 90% by weight, in particular 20% by weight to 75% by weight; if necessary, however, these areas can also be exceeded or fallen short of.

In order to improve the aesthetic impression of liquid washing or cleaning agents, they can be colored with suitable dyes. Preferred dyes, the selection of which presents no difficulty to the skilled person, have a high storage stability and insensitivity to the other ingredients of the agents and to light and no pronounced substantivity to textile fibers so as not to stain them. If the granules of the invention are colored, the liquid phase of the composition preferably has a different color or hue.

Suitable foam inhibitors which can be used in the liquid detergents and cleaners are, for example, soaps, paraffins or silicone oils, which may optionally be applied to support materials.

Suitable soil-release polymers, which are also referred to as "anti-redeposition agents", are, for example, nonionic cellulose ethers such as methylcellulose and methylhydroxypropylcellulose with a methoxy group content of 15 to 30% by weight and of hydroxypropyl groups of 1 to 15% by weight. , in each case based on the nonionic cellulose ether and the known from the prior art polymers of phthalic acid and / or terephthalic acid or derivatives thereof, in particular polymers of ethylene terephthalates and / or polyethylene and / or polypropylene glycol terephthalates or anionic and / or nonionic modified Derivatives of these Suitable derivatives include the sulfonated derivatives of the phthalic and terephthalic acid polymers.

Optical brighteners (so-called "whiteners") can be added to the liquid detergents and cleaning agents to eliminate graying and yellowing of the treated fabrics a brightening and fake bleaching effect by converting invisible ultraviolet radiation into visible longer wavelength light, wherein the ultraviolet light absorbed from the sunlight is emitted as a faint bluish fluorescence and gives a pure white with the yellowness of the grayed or yellowed wash. Suitable compounds are derived, for example, from the substance classes of 4,4'-diamino-2,2'-stilbenedisulfonic acids (flavonic acids), 4,4'-distyrylbiphenyls, methylimidones, coumarins, dihydroquinolinones, 1,3-diarylpyrazolines, Naphthalic acid imides, benzoxazole, benzisoxazole and benzimidazole systems, and heterocyclic substituted pyrene derivatives. The optical brighteners are usually used in amounts of between 0.03 and 0.3 wt .-%, based on the finished composition.

Grayness inhibitors have the task of keeping the dirt detached from the fiber suspended in the liquor and thus preventing the dirt from being rebuilt. Water-soluble colloids of mostly organic nature are suitable for this purpose, for example glue, gelatine, salts of ether sulfonic acids or cellulose or salts of acidic sulfuric acid esters of cellulose or starch. Also, water-soluble polyamides containing acidic groups are suitable for this purpose. It is also possible to use soluble starch preparations and starch products other than those mentioned above, for example degraded starch, aldehyde starches, etc. Polyvinylpyrrolidone is also useful. However, preference is given to using cellulose ethers such as carboxymethylcellulose (Na-SaIz), methylcellulose, hydroxyalkylcellulose and mixed ethers such as methylhydroxyethylcellulose, methylhydroxypropylcellulose, methylcarboxymethylcellulose and mixtures thereof in amounts of from 0.1 to 5% by weight, based on the compositions.

Since fabrics, particularly rayon, rayon, cotton and blends thereof, can tend to wrinkle because the individual fibers are susceptible to flexing, buckling, squeezing and squeezing across the grain, the compositions may contain synthetic crease inhibitors. These include, for example, synthetic products based on fatty acids, fatty acid esters, fatty acid amides, alkylol esters, alkylolamides or fatty alcohols, which are usually reacted with ethylene oxide, or products based on lecithin or modified phosphoric acid ester. To combat microorganisms, the liquid detergents and cleaning agents may contain antimicrobial agents. Depending on the antimicrobial spectrum and mechanism of action, a distinction is made between bacteriostatic agents and bactericides, fungistats and fungicides, etc. Important substances from these groups are, for example, benzalkonium chlorides, alkylarylsulfonates, halophenols and phenolmercuric acetate, and the compounds according to the invention can be completely dispensed with.

In order to prevent undesirable changes to the liquid detergents and cleaners and / or the treated fabrics caused by oxygen and other oxidative processes, the agents in the liquid phase may contain antioxidants. This class of compounds includes, for example, substituted phenols, hydroquinones, catechols and aromatic amines, as well as organic sulfides, polysulfides, dithiocarbamates, phosphites and phosphonates.

Increased comfort may result from the additional use of antistatic agents added to the compositions. Antistatic agents increase the surface conductivity and thus allow an improved drainage of formed charges. External antistatic agents are generally substances with at least one hydrophilic molecule ligand and give a more or less hygroscopic film on the surfaces. These mostly surface-active antistatic agents can be subdivided into nitrogen-containing (amines, amides, quaternary ammonium compounds), phosphorus-containing (phosphoric acid esters) and sulfur-containing (alkyl sulfonates, alkyl sulfates) antistatic agents. Lauryl (or stearyl) dimethylbenzylammonium chlorides are suitable as antistatic agents for textile fabrics or as an additive to detergents, with an additional finishing effect being achieved.

To improve the water absorption capacity, the rewettability of the treated fabrics and to facilitate the Bügeins the treated fabrics can be used in the liquid detergents and cleaners, for example, silicone derivatives. These additionally improve the rinsing behavior of the agents by their foam-inhibiting properties. Preferred silicone derivatives are, for example, polydialkyl or alkylaryl siloxanes in which the Alkyl groups have one to five carbon atoms and are completely or partially fluorinated. Preferred silicones are polydimethylsiloxanes, which may optionally be derivatized and are then amino-functional or quaternized or have Si-OH, Si-H and / or Si-Cl bonds. The viscosities of the preferred silicones are in the range between 100 and 100,000 mPas at 25 ° C, wherein the silicones in amounts between 0.2 and 5 wt .-%, based on the total agent can be used.

Finally, the detergents and cleaners may also contain UV absorbers which wick onto the treated fabrics and improve the lightfastness of the fibers. Compounds having these desired properties are, for example, the compounds which are active by radiationless deactivation and derivatives of benzophenone having substituents in the 2- and / or 4-position. Also suitable are substituted benzotriazoles, phenyl-substituted acrylates (cinnamic acid derivatives) in the 3-position, optionally with cyano groups in the 2-position, salicylates, organic nitium complexes and natural substances such as umbelliferone and the endogenous urocanic acid.

In order to avoid the catalyzed by heavy metals decomposition of certain detergent content - substances can be used, which complex heavy metals. Suitable heavy metal complexing agents are, for example, the alkali metal salts of ethylenediaminetetraacetic acid (EDTA) or nitrilotriacetic acid (NTA) and alkali metal salts of anionic polyelectrolytes such as polymaleates and polysulfonates.

A preferred class of complexing agents are the phosphonates, which in preferred liquid detergents and cleaners in amounts of from 0.01 to 2.5 wt .-%, preferably 0.02 to 2 wt .-% and in particular from 0.03 to 1 , 5 wt .-% are included. These preferred compounds include, in particular, organophosphonates such as, for example, 1-hydroxyethane-1,1-diphosphonic acid (HEDP), aminotri (methylene phosphonic acid) (ATMP), diethylene triamine penta (methylenephosphonic acid) (DTPMP or DETPMP) and 2-phosphonobutane-1 , 2,4-tricarboxylic acid (PBS-AM), which are used mostly in the form of their ammonium or alkali metal salts. The liquid detergents and cleaners are prepared by conventional methods and methods in which, for example, the constituents are simply mixed in stirred kettles, whereby water, optionally present nonaqueous solvents and surfactant (s) are suitably presented and the further constituents are added in portions. Separate heating in the preparation is not required, if desired, the temperature of the mixture should not exceed 80 ° C. The granules according to the invention can be stably dispersed in the aqueous liquid detergent and cleaner. The agents are normally stable at room temperature and at 40 ^° C. for a period of at least 4 weeks, and preferably for at least 6 weeks, without the granules according to the invention creaming or sedimenting. Preferred liquid agents have densities of 0.5 to 2.0 g / cm ³ , in particular 0.7 to 1.5 g / cm ³ , on. The density difference between the granules and the liquid phase of the composition is preferably not more than 10% of the density of one of the two and is particularly so low that the granules according to the invention and preferably also optionally other suspended in the means Feststoffbartikel float in the liquid phase.

Examples

example 1

91 parts by weight of water-containing phthalimidoperoxohexanoic acid (EURECO® W, 70% dry substance) were granulated with 4.5 parts by weight of sodium alginate powder in a Lödige® ploughshare mixer. Subsequently, 4.5 parts by weight of a 15 weight percent calcium nitrate solution was added. The resulting granules were dried and sieved to a particle size range of 1.0 mm to 2.0 mm.

The degree of preservation of the phthalimidoperoxohexanoic acid in the thus-obtained granules added to a waaser-containing liquid detergent test matrix was 73% after two weeks storage at 35 ° C.

Example 2

200 g of phthalimidoperoxohexanoic acid (EURECO®, ground to particle sizes less than 0.8 mm) were mixed in a Lödige® ploughshare mixer with H 2 O g of a 4% by weight aqueous Na alginate solution. The resulting paste was mixed with another 227 g of the same Phthalimidoperoxohexansäure- quality and granulated. The primary granules thus obtained were stirred into a 2% by weight calcium nitrate solution. The resulting granules were filtered off, dried and sieved to a particle size range of 1.5 mm to 2.5 mm.

The degree of preservation of the phthalimidoperoxohexanoic acid in the thus-obtained granules added to a hydrous detergent test matrix was 81% after two weeks of storage at 35 ^° C.

Claims

claims

A process for the preparation of bleach granules, which comprises granulating a particulate peroxygen compound and an ionotropically crosslinkable water-soluble polymer to a primary granule by means of a hydrous liquid binder and bringing the primary granules into contact with a crosslinking agent for the ionotropically crosslinkable water-soluble polymer.

2. The method according to claim 1, characterized in that one carries out the granulation by an agglomeration step and / or a compaction step.

3. The method according to claim 1 or 2, characterized in that the granulation is carried out in a granulation mixer or a fluidized bed apparatus.

4. The method according to any one of claims 1 to 3, characterized in that the particulate peroxygen compound is selected from the group comprising alkali metal perborates, percarbonates, persulfates, diacyl peroxides and peroxycarboxylic acids and mixtures thereof.

5. The method according to any one of claims 1 to 4, characterized in that metering the water-containing binder as part of a preparation containing the particulate peroxygen compound, and / or a preparation containing the ionotropically crosslinkable polymer in a granulation mixer.

6. The method according to any one of claims 1 to 5, characterized in that the particulate peroxygen compound is a Phthalimidoperoxycarbonsäure, in particular Phthalimidoperoxycapronsäure.

7. The method according to any one of claims 1 to 5, characterized in that the particulate peroxygen compound is an aliphatic diacyl peroxide of the general formula R'-C (O) -O-O-C (O) -R ", in which R 'and R each independently represents an alkyl group having 8 to 20 carbon atoms.

8. The method according to any one of claims 1 to 7, characterized in that the ionotropic crosslinkable polymer from the group comprising carrageenan, alginate, gellan gum and pectic acid and mixtures thereof is selected.

9. The method according to any one of claims 1 to 8, characterized in that the addition of the crosslinking agent to the located in a mixer or a fluidized bed primary granules, wherein the crosslinking agent is introduced in particular as an aqueous solution.

10. The method according to any one of claims 1 to 8, characterized in that the primary granules are introduced into an aqueous solution of the crosslinking agent, then removed therefrom, for example by filtration, and, if desired, dried.

11. The method according to any one of claims 1 to 10, characterized in that the amount of peroxygen compound up to 95 wt .-%, in particular 50 wt .-% to 80 wt -.%, In each case based on the total particles.

12. Use of a peroxygen compound-containing particle obtainable by the process according to any one of claims 1 to 11, for the preparation of particulate or liquid detergents or cleaning agents.

13. Particulate washing or cleaning agent, in particular having a bulk density in the range of 400 g / l to 1000 g / l, containing a peroxygen compound-containing particle, which is obtainable by the process according to any one of claims 1 to 11.

14. A liquid water-containing washing or cleaning agent containing a particle which is obtainable by the process according to any one of claims 1 to 11.

15. Composition according to claim 14, characterized in that it contains by the method according to one of claims 1 to 10 available particles with sizes in the range of 1 mm to 3 mm.