EP0828818A1 - Granulares wasch- oder reinigungsmittel mit hoher schüttdichte - Google Patents
Granulares wasch- oder reinigungsmittel mit hoher schüttdichteInfo
- Publication number
- EP0828818A1 EP0828818A1 EP96917393A EP96917393A EP0828818A1 EP 0828818 A1 EP0828818 A1 EP 0828818A1 EP 96917393 A EP96917393 A EP 96917393A EP 96917393 A EP96917393 A EP 96917393A EP 0828818 A1 EP0828818 A1 EP 0828818A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- extruded
- component
- weight
- granular
- surfactants
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/06—Powder; Flakes; Free-flowing mixtures; Sheets
- C11D17/065—High-density particulate detergent compositions
Definitions
- the invention relates to a granular washing or cleaning agent with high bulk densities and improved dissolving properties.
- the increasing bulk density of commercial detergent granules is mainly achieved by an increasingly compact grain structure of the granules, whereby the porosity of the granules decreases to an almost complete elimination of the connected pore system.
- the decrease in porosity is generally associated with an undesired delay in dissolution, which can lead to deposits of detergent granules on textiles.
- European patent EP-B-0486592 discloses granular or extruded washing or cleaning agents with bulk densities above 600 g / l, which contain anionic and / or nonionic surfactants in amounts of at least 15% by weight and up to about 35% by weight. % contain. They are produced by a process in which a solid, free-flowing premix, which contains a plasticizer and / or lubricant, is extruded at high pressures between 25 and 200 bar and the extrudate is extruded onto the extrusion from the hole shape by means of a cutting device predetermined granule dimension is cut. The extrudates produced can subsequently be mixed with other granules, In some embodiments, the proportion of extrudates in the finished washing or cleaning agents is more than 60% by weight.
- the object was therefore to provide a granular washing or cleaning agent with a high bulk density, which contains extruded components and has improved dissolving properties.
- the improved dissolving properties should be achieved by largely avoiding gelling when the agent is dissolved in water.
- the invention accordingly relates to a granular washing or cleaning agent with a bulk density above 600 g / l, containing an extruded component and anionic and / or nonionic surfactants in amounts of at least 15% by weight, the agent comprising at least two different granular agents Has components, of which at least one is extruded and at least one is not extruded, the extruded component (s) in amounts of 30 to 85% by weight, based on the total composition, in which the composition contains the content of surfactants (including soaps) in the extruded component (s) is 0 to less than 15% by weight, based on the respective extruded component, and at least one non-extruded granular and surfactant-containing component is present in the amounts on average, that at least 1% by weight, based on the total agent, of surfactants is provided by this component.
- the agent comprising at least two different granular agents Has components, of which at least one is extruded and at least one is not
- extruded components are also counted among the granular components. In all cases in which it is immaterial whether a component is extruded or not, the name of the granular component is therefore chosen.
- the total content of surfactants, including soaps, in the detergents is preferably 15 to 40% by weight and in particular 18 to 30% by weight.
- Suitable surfactants in the granular components and in particular in the extruded components are both anionic surfactants and also anionic and nonionic surfactants.
- Preferred surfactants of the sulfonate type are Cg-Ci3-alkylbenzenesulfonates, olefin sulfonates, ie mixtures of alkene and hydroxyalkanesulfonates, and disulfonates of the type obtained, for example, from C 1 -C 4 -mono-olefins with a terminal or internal double bond Sulfonation with gaseous sulfur trioxide and subsequent alkaline or acidic hydrolysis of the sulfonation products is considered.
- alkanesulfonates which are obtained from C 1 -C 4 -alkanes, for example by sulfochlorination or sulfoxidation with subsequent hydrolysis or neutralization.
- esters of ⁇ -sulfofatty acids for example the -sulfonated methyl esters of hydrogenated coconut, palm kernel or tallow fatty acids, and their salts. Sulfated fatty acid glycerol esters are also suitable.
- 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.
- the sulfonation products are a complex mixture which contains mono-, di- and triglyceride sulfonates with a permanent and / or internal sulfonic acid grouping.
- sulfonated fatty acid salts glyceride sulfates, glycerine sulfates, glycerin and soaps are formed. If one starts from the sulfonation of saturated fatty acids or hardened fatty acid glycerol ester, the proportion of the ⁇ -sulfonated fatty acid disalts can be up to about 60% by weight, depending on the procedure.
- alk (en) yl sulfates the alkali and in particular the sodium salts of the sulfuric acid half-esters of the C ⁇ -Cig fatty alcohols, for example from coconut fatty alcohol, taig fatty alcohol, lauryl, myristyl, cetyl or stearyl alcohol or the C ⁇ n-C20-0xoalcohols and those half esters ⁇ preferred alcohols of this chain length preferred.
- alk (en) yl sulfates of the chain length mentioned which contain a synthetic, straight-chain alkyl radical prepared on a petrochemical basis and which have a degradation behavior analogous to that of the adequate compounds based on oleochemical raw materials.
- Ci6-Ci8-alk (en) yl sulfates are particularly preferred from the point of view of washing technology. It can also be particularly advantageous, and particularly advantageous for machine washing agents, to use Ci6-Ci8-alk (en) yl sulfates in combination with lower melting anionic surfactants and in particular with those anionic surfactants which have a lower Krafft point and with relatively low detergents temperatures from, for example, room temperature to 40 ° C show a low tendency to crystallize.
- the agents therefore contain mixtures of short-chain and long-chain fatty alkyl sulfates, preferably mixtures of Ci2-Ci4-fatty alkyl sulfates or C ⁇ -Cig-fatty alkyl sulfates with Ciss-Cig "fatty alkyl sulfates or Ci2-Ci6-fatty alkyl sulfates with C j ö
- not only saturated alkyl sulfates, but also unsaturated alkenyl sulfates with an alkenyl chain length of preferably CJ ⁇ to C22 are used, in particular mixtures of saturated sulfons consisting predominantly of Ciö Fatty alcohols and unsaturated, sulfated fatty alcohols consisting predominantly of Cjs are preferred, for example those which are derived from solid or liquid fatty alcohol mixtures of the HD-Ocenol ( R ) type (commercial product of the applicant).
- 2,3-Alkyl sulfates which are produced, for example, according to US Pat. Nos. 3,234,258 or 5,075,041 and can be obtained as commercial products from the Shell Oil Company under the name DAN ( R ), are also suitable anionic surfactants.
- the sulfuric acid monoesters of the straight-chain or branched C7-C2i alcohols ethoxylated with 1 to 6 mol of ethylene oxide, such as 2-methyl-branched Cg-Cn alcohols with an average of 3.5 mol of ethylene oxide (E0) or C ⁇ - Ci ⁇ -fatty alcohols with 1 to 4 EO are suitable. Because of their high foaming behavior, they are used in detergents only in relatively small amounts, for example in amounts of 1 to 5% by weight.
- Preferred anionic surfactants are also the salts of alkylsulfosuccinic acid, which are also referred to as sulfosuccinates or as sulfosuccinic acid esters and which are monoesters and / or diesters of sulfosuccinic acid with alcohols, preferably fatty alcohols and in particular ethoxylated fatty alcohols.
- Preferred sulfosuccinates contain CQ to C ⁇ Q fatty alcohol residues or mixtures thereof.
- Particularly preferred sulfosuccinates contain a fatty alcohol residue which is derived from ethoxylated fatty alcohols which, viewed in isolation, are nonionic surfactants (for a description, see below).
- alk (en) ylsuccinic acid with preferably 8 to 18 carbon atoms in the alk (en) yl chain or salts thereof.
- preferred anionic surfactants are alkyl benzene sulfonates and / or both straight-chain and branched alkyl sulfates.
- soaps can also be used, preferably in amounts of 0.1 to 5% by weight, based on the total agent.
- saturated fatty acid soaps are suitable, such as the salts of lauric acid, myristic acid, palmitic acid, stearic acid, hydrogenated erucic acid and behenic acid, and in particular from natural fatty acids, e.g. Coconut, palm kernel or tallow fatty acids, derived soap mixtures.
- the anionic surfactants and soaps can be present 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 in the form of their sodium or potassium salts, in particular in the form of the sodium salts.
- Nonionic surfactants are preferably alkoxylated, advantageously ethoxylated, especially primary alcohols with preferably 8 to 18 carbon atoms and an average of 1 to 12 moles of ethylene oxide (E0) per mole of alcohol, in which the alcohol radical is linear or preferably branched in the 2-position ethyl may be or may contain linear and methyl-branched radicals in the mixture, as are usually present in oxo alcohol radicals.
- alcohol ethoxylates with linear residues of alcohols of native origin with 12 to 18 carbon atoms, for example from coconut, palm, tallow fat or oleyl alcohol, and an average of 2 to 8 E0 per mole of alcohol are particularly preferred.
- the preferred ethoxylated alcohols include, for example, Ci2-Ci4 alcohols with 3 E0 or 4 E0, Cg-Cu alcohols with 7 E0, Ci3-Ci5 alcohols with 3 E0, 5 E0, 7 E0 or 8 E0, Ci2-Ci8- Alcohols with 3 E0, 5 E0 or 7 E0 and mixtures of these, such as mixtures of C12-Ci4 alcohol with 3 E0 and Ci2-Ci8 alcohol with 5 E0.
- 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).
- fatty alcohols with more than 12 E0 can also be used. Examples of this are tallow fatty alcohol with 14 E0, 25 E0, 30 E0 or 40 E0.
- alkyl glycosides of the general formula R0 (G) x can also be used as further nonionic surfactants, in which R is a primary straight-chain or methyl-branched, in particular methyl-branched in the 2-position aliphatic radical having 8 to 22, preferably 12 to 18 ° C.
- - Atoms means 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.
- nonionic surfactants which are used either as the sole nonionic surfactant or in combination with other nonionic surfactants, in particular together with alkoxylated fatty alcohols and / or alkylglycosides, 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 esters, as described, for example, in Japanese patent application JP 58/217598 or which are preferably prepared by the process described in international patent application WO-A-90/13533.
- 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.
- the amount of these non-ionic surfactants is preferably not more than that of the ethoxylated fatty alcohols, in particular not more than half of them.
- Suitable surfactants are polyhydroxy fatty acid of the formula (I),
- R 2 is C0 for an aliphatic acyl radical having 6 to 22 carbon atoms
- R3 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 is up 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 polyhydroxy fatty acid amides are preferably derived from reducing sugars with 5 or 6 carbon atoms, in particular from glucose.
- the compositions contain at least 2 different granular components, the only difference of which can be that one component is extruded while the other component was produced by another process.
- the extruded component (s) and the non-extruded component (s) also differ in their composition.
- the compositions contain one or more extruded components, the proportion of the extruded component (s) being 50 to 80% by weight, based on the overall composition.
- the extruded components present or, if there is only one extruded component, that this extruded component then contains surfactants, the surfactant content of each extruded component not exceeding 14% by weight and is preferably 6 to 13% by weight, in each case based on the extruded component.
- the compositions contain surfactant-containing extruded components in such quantities that 0.5 to 10% by weight, based on the total composition, of surfactants is thereby provided.
- the extruded components can be produced by any of the known methods. However, a method according to the teaching of European patent EP-B-0486592 or the teaching of international patent application WO-A-94/09111 is preferred.
- the size of the preferred almost spherical extrudates is advantageously between 0.8 and 2 mm.
- the non-extruded granular and surfactant-containing component contains anionic surfactants or anionic and nonionic surfactants, preferably in amounts of 30 to 95% by weight, based on the non-extruded granular component.
- the non-extruded granular component contains anionic surfactants but is free of nonionic surfactants.
- Alkylbenzenesulfonates and / or straight-chain and / or branched alkylsulfates are advantageously used as anionic surfactants.
- the non-extruded granular and surfactant-containing components are preferably contained in the compositions in such a way that they contain 2.25 to 30% by weight, in particular 5 to 25% by weight, based on the total composition, of surfactants to be provided.
- surfactant-containing extruded components and surfactant-containing non-extruded granular components are used, the weight ratio Extruded component containing tenside: non-extruded granular component containing tenside is greater than 30: 1 to 2: 1 and in particular 25: 1 to 3: 1, weight ratios between 10: 1 and 5: 1, for example 8.5: 1 to 6: 1 can be particularly preferred.
- the non-extruded granular component or the further non-extruded granular components, in particular the surfactant-containing components can have been produced by any of the methods known today, for example by means of spray drying, superheated steam drying, spray neutralization or granulation.
- components containing anionic surfactants are preferred, which are obtained by spray neutralization in accordance with German patent application DE 4425968 or by granulation and, if appropriate, simultaneous drying in a fluidized bed in accordance with the teaching of international applications WO-A-93/04162 and WO-A-94 / 18303 can be obtained.
- the particle size distribution of the non-extruded surfactant-containing granules should not be fundamentally different from the particle size distributions of the other components, so that the particle size spectrum is not broadened too much.
- granules can be produced in the fluidized bed of almost any particle size and particle size distribution.
- Particularly preferred are therefore non-extruded granules containing surfactants, which are almost spherical and have a particle size distribution which roughly corresponds to the particle size distribution of another granular component, for example an enzyme granulate, a foam inhibitor granulate, a bleach activator granulate and corresponds in particular to an extruded granulate.
- Suitable enzymes are those from the class of proteases, lipases or lipolytically active enzymes, amylases, cellulases or mixtures thereof. Enzymes obtained from bacterial strains or fungi such as Bacillus subtilis, Bacillus licheniformis, Streptomyces griseus and Humicola insolens are particularly suitable. Proteases of the subtilisin type and in particular proteases which are obtained from Bacillus lentus are preferably used.
- Enzyme mixtures for example from protease and amylase or protease and lipase or lipolytically active 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 especially protease and / or lipase-containing mixtures or mixtures with lipolytic acting enzymes of particular interest.
- Known cutinases are examples of such lipolytically active enzymes.
- Peroxidases or oxidases have also proven to be suitable in some cases.
- the enzymes are preferably adsorbed on carriers and / or embedded in coating substances in order to protect them against premature decomposition.
- the proportion of the enzymes, enzyme mixtures or enzyme granules can be, for example, about 0.1 to 5% by weight, preferably 0.1 to about 2% by weight.
- Suitable foam inhibitors are, for example, soaps of natural or synthetic origin, which have a high proportion of C ⁇ - ⁇ - fatty acids.
- Suitable non-surfactant-like foam inhibitors are, for example, organopolysiloxanes and their mixtures with microfine, optionally silanized silica, and paraffins, waxes, microcrystalline waxes and their mixtures with silanized silica or bistearylethylenediamide. Mixtures of various foam inhibitors are also used with advantages, e.g. those made of silicone, paraffins or waxes.
- the foam inhibitors in particular silicone and / or paraffin-containing foam inhibitors, are preferably bound to a granular, water-soluble or dispersible carrier substance and thus form a further granular component of the agents according to the invention.
- a granular, water-soluble or dispersible carrier substance and thus form a further granular component of the agents according to the invention.
- Mixtures of paraffins and bistearylethylenediamides and mixtures of paraffins and silicones on inorganic supports are particularly preferred.
- Granules which contain mixtures of paraffins and silicones in a weight ratio of 1: 1 to 3: 1 are particularly preferred.
- bleach activators can be incorporated into the preparations.
- Examples include N-acyl or 0-acyl compounds which form organic peracids with H2O2, preferably N, N'- tetraacylated diamines, p- (alkanoyloxy) benzenesulfonates, also carboxylic anhydrides and esters of polyols such as glucose pentaacetate.
- Other known bleach activators are acetylated mixtures of sorbitol and mannitol, as described, for example, in European patent application EP-A-0 525 239.
- bleach activators are N, N, N ', N'-tetraacetylethylene diamine (TAED), 1,5-diacetyl-2,4-dioxo-hexahydro-l, 3,5-triazine (DADHT) and acetylated sorbitol mannitol Mixes (SORMAN).
- the bleach activators contain bleach activators in the usual range.
- the bleach activators are introduced in granular form, that is to say as a further granular component, in the compositions according to the invention in amounts such that the compositions 1 to 10% by weight and preferably 3 to 8% by weight, in each case based on the total composition , contain bleach activator.
- ingredients of the agents according to the invention are preferably organic and organic builder substances, bleaching agents, substances which have a positive influence on the washability of oil and fat, graying inhibitors, if appropriate substances which affect the solubility and the dissolution rate of the individual granular components and / or the ge Improve all agents, textile-softening substances, optical brighteners, colorants and fragrances as well as alkaline and / or neutral salts in the form of their sodium and / or potassium salts.
- Suitable inorganic builder substance is, for example, finely crystalline, synthetic and bound water-containing zeolite in detergent quality.
- Zeolite A and / or P and, if appropriate, zeolite X and mixtures of A, X and / or P are particularly suitable.
- the zeolite can be used as a spray-dried powder or as an undried stabilized suspension which is still moist from its production.
- the zeolite in the event that the zeolite is used as a suspension, it can contain small additions of nonionic surfactants as stabilizers, for example 1 to 3% by weight, based on zeolite, of ethoxylated C 1 -C 4 -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 ⁇ m (volume distribution; measurement method: Coulter Counter) and preferably contain 18 to 22% by weight, in particular 20 to 22% by weight, of bound water. Zeolites can be contained both in the extruded components and in the non-extruded granular components.
- Suitable substitutes or partial substitutes for phosphates and zeolites are crystalline, layered sodium silicates of the general formula NaMSi x ⁇ 2 ⁇ + ⁇ * yH2 ⁇ , 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 are 2, 3 or 4.
- Such crystalline layered silicates are described, for example, in European patent application EP-A-0 164 514.
- Preferred crystalline sheet silicates of the formula given are those in which M represents sodium and x assumes the values 2 or 3.
- Crystalline layered sodium silicates can be contained both in the extruded and in the non-extruded granular components. However, they are preferably introduced into the composition in non-extruded granular form.
- Amorphous silicates so-called X-ray amorphous silicates, which in X-ray diffraction experiments do not give 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, can have secondary washing power can be used as builder substances. It can even 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 in such a way that the products have microcrystalline ranges of size 10 to a few hundred nm, values up to max. 50 nm and in particular up to max. 20 nm are preferred.
- Spray-dried sodium carbonate-sodium silicate compounds are also particularly preferred.
- Surfactants, especially anionic surfactants such as alkylbenzenesulfonates or alkyl sulfates including 2,3-alkyl sulfates may contain.
- Amorphous silicates and silicate compounds such as the silicate-carbonate compounds mentioned can likewise be contained in the extruded as well as in the non-extruded granular components.
- Sodium silicate with a molar ratio Na2 ⁇ : S1O2 of 1: 1 to 1: 4.5 is used primarily as amorphous silicate, and preferably from 1: 2 to 1: 3.0 as amorphous silicate with secondary washing power.
- the sodium carbonate and / or sodium bicarbonate content of the agents is preferably up to 20% by weight, advantageously between 5 and 15% by weight.
- the sodium silicate content of the compositions is generally up to 30% by weight and preferably between 2 and 25% by weight.
- Usable organic builders are, for example, the polycarboxylic acids preferably 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.
- 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).
- 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 with maleic acid which contain 50 to 90% by weight of acrylic acid and 50 to 10% by weight of maleic acid have proven to be particularly suitable.
- 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.
- Ter- and Quadropolymers for example those which, according to DE-A-4300772, as monomers, salts of acrylic acid and maleic acid and vinyl alcohol or vinyl alcohol derivatives, or, according to DE-C-4221 381, as monomers, salts of acrylic acid and 2-alkylallylsulfonic acid and sugar Contain derivatives.
- Suitable builder systems are oxidation products of carboxyl-containing polyglucosans and / or their water-soluble salts, as are described, for example, in international patent application W0-A-93/08251 or the production of which is described, for example, in international patent application W0-A-93/16110.
- polyaspartic acids or their salts and derivatives are also to be mentioned as further preferred builder substances.
- 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-A-0 280 223 .
- Preferred polyacetals are obtained from dialdehydes such as glyoxal, glutaraldehyde, terephthalaldehyde and mixtures thereof and from polyolcarboxylic acids such as gluconic acid and / or glucoheptonic acid.
- the organic builder substances can be used both in the extruded and in the non-extruded granular components, the use in the extruded component being preferred.
- bleaching agents which can be used are, for example, sodium percarbonate, peroxypyrophosphates, citrate perhydrates and H2O2-providing peracidic salts or peracids, such as perbenzoates, peroxophthalates, diperazelaic acid or diperdodecanedioic acid.
- the bleaching agent content of the agents is preferably 5 to 25% by weight and in particular 10 to 20% by weight, with perborate monohydrate being advantageously used.
- the bleaches can be extruded as well O 96/38530
- - 15 - can also be contained in the non-extruded components of the agent. It is preferred to introduce perborates into the composition via extruded components, while percarbonates are preferably used in the form of almost spherical, non-extruded granules.
- the agents can also contain components which have a positive influence on the oil and fat washability from textiles. This effect is particularly evident 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, nonionic cellulose ethers such as methyl cellulose and methyl hydroxypropyl cellulose with a proportion of methoxyl 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 of these. These substances can be contained both in the extruded and in the non-extruded granular components, their content in the non-extruded granular components being preferred.
- nonionic cellulose ethers such as methyl cellulose and methyl hydroxypropyl cellulose with a proportion of methoxyl groups of 15 to 30% by weight and of hydroxypropoxyl groups of 1
- Graying inhibitors have the task of keeping the dirt detached from the fiber suspended in the liquor and thus preventing the dirt from being re-absorbed.
- Water-soluble colloids of mostly organic nature are suitable for this, for example the water-soluble salts of polymeric carboxylic acids, glue, gelatin, salts of ether carboxylic acids or ether sulfonic acids of starch or cellulose or salts of acidic sulfuric acid esters of cellulose or starch.
- Water-soluble polyamides containing acidic groups are also suitable for this purpose. Soluble starch preparations and starch products other than those mentioned above can also be used, for example degraded starch, aldehyde starches, etc. Polyvinylpyrrolidone can also be used.
- cellulose ethers such as carboxymethyl cellulose (sodium salt), methyl cellulose, hydroxyalkyl cellulose and mixed ethers such as methyl hydroxyethyl cellulose are preferred.
- These substances can also be contained both in the extruded and in the non-extruded granular components.
- the agents can also contain constituents which increase the dissolving speed of the individual granular components and / or of the entire agent.
- the preferred ingredients include in particular Cs-Cjs alcohols with 10 to 80 moles of ethylene oxide per mole of alcohol, for example tallow fatty alcohol with 30 E0 and tallow alcohol with 40 E0, but also fatty alcohols with 14 E0, and polyethylene glycols with a relative molecular weight between 200 and 2000.
- Other suitable substances are described, for example, in international patent application WO-A-93/02176.
- the agents can contain, as optical brighteners, derivatives of diaostilbenedisulfonic acid or its alkali metal salts. Suitable are e.g. Salts of 4,4'-bis (2-anilino-4-morpholino-l, 3,5-triazinyl-6-amino) stilbene-2,2'-disulfonic acid or similar compounds, instead of morpholino Group carry a diethanolamino group, a methylamino group, an anilino group or a 2-methoxyethylamino group. Brighteners of the substituted diphenylstyryl type may also be present, e.g.
- chlorides can also be present as neutral salts.
- Fine-grained components are understood to mean those which have a particle size smaller than 0.2 mm. Such fine grain fractions are preferred for reasons of homogeneity and to avoid separations however, only in amounts not above 10% by weight and in particular not above 5% by weight in the compositions.
- Some fine-grained components can also be used to powder off existing granules, thereby, for example, reducing the stickiness of the granules and increasing the bulk densities of the individual granules and of the entire composition.
- Suitable surface modifiers of this type are known from the prior art.
- suitable, finely divided zeolites, silicas, amorphous silicates, fatty acids or fatty acid salts for example calcium stearate, but especially precipitated silicas, mixtures of zeolite and silicas or mixtures of zeolite and calcium stearate are preferred.
- the bulk density of the granular washing or cleaning agents is above 600 g / 1, preferably between 650 and 900 g / 1. Because of the high proportions of spherical granules, the phenomenon occurs that the density of the granular agent after scooping with a currently commercially available scoop from a commercial package, the so-called scoop density, is higher than the initially determined bulk density.
- the scooping density of the agents is preferably above 650 g / 1, in particular between 680 and 950 g / 1. In order to achieve such high bulk densities of the entire composition, it is necessary that the individual and in particular the granular components already have very high bulk densities.
- no more than 20% by weight, and in particular no more than 15% by weight, of the granular components and any fine-grain fractions present have a bulk density of less than 600 g / l.
- Processes are particularly suitable for producing the agents according to the invention in which a plurality of subcomponents, at least one of which is extruded, can be mixed with non-extruded granular components, for example spray-dried and / or granulated components. It is also possible for spray-dried or granulated components to be subsequently treated in the preparation, for example with nonionic surfactants, in particular ethoxylated fatty alcohols, by the customary processes.
- non-extruded granular components for example spray-dried and / or granulated components.
- spray-dried or granulated components to be subsequently treated in the preparation, for example with nonionic surfactants, in particular ethoxylated fatty alcohols, by the customary processes.
- compositions for example carbonates, citrate or citric acid or other polycarboxylates or polycarbonates, polymeric polycarboxylates, zeolite and / or layered silicates, for example layered crystalline disilicates, are mixed in, the proportion of fine-grained contents in the composition, ie on particles with a particle size below 0.2 mm, not above 15% by weight, in particular not above 5% by weight, in each case based on the total agent.
- the agent Ml according to the invention contained an extrudate prepared according to the teaching of the European patent EP-B-0486592 from the components (a), (c) to (k), (), (o) to (r) and (s) .
- Component (o) was used for subsequent powdering of the extruded granules.
- the granular components (b), (1), (n) and (q) were mixed in subsequently.
- the comparative VI contained the same components with the difference that component (b) was coextruded and only components (1), (n) and (q) were subsequently mixed.
- the surfactant content of both agents was thus 21.9% by weight without soap and 22.7% by weight with soap. 9.9% by weight without soap and 10.7% by weight of surfactants including soap were introduced into the Ml via the extrudate and 12% by weight of surfactants were subsequently mixed in via component (b). In VI, however, the entire amount of surfactant was introduced via the extrudate.
- the bulk density of agents Ml and VI were 700 g / 1 and 710 g / 1, respectively.
- the induction behavior of both agents via the induction chambers of standard household washing machines was excellent.
- the grain spectrum of both agents was such that 99% by weight of all particles were not larger than 1.6 mm and more than 90% by weight of all particles were larger than 0.4 mm. Differences were shown in a modified hand wash test in the dissolution behavior of the agents in water.
- test agent 25 g were sprinkled into 5 l of tap water (30 ° C.) in a wash bowl made of dark plastic (for example dark red). After 15 seconds, the agent was distributed in the bowl by hand. After a further 15 seconds, 1 blue terry towel was added to the wash liquor and moved as in a typical hand wash. After 30 seconds the wall of the bowl was wiped with the towel. Finally, after another 30 seconds, the towel was wrung out and visually graded.
- dark plastic for example dark red
- Grade 1 flawless, no recognizable residues Grade 2 tolerable, isolated, not yet disturbing residues Grade 3 recognizable residues that are already annoying in the event of a critical assessment from grade 4: clearly recognizable and annoying residues in increasing number and quantity
- This example demonstrates the influence of the surfactant content in the extruded component on the gelling when the agent is redissolved in water.
- the surfactant content in the extruded component increased and the proportion of the admixed surfactant via component (b) decreased (Table 2).
- the total surfactant content was 21.9% by weight without soap and 22.7% by weight with soap.
- Table 3 shows the results of the bowl test described in more detail above.
- Alkyl sulfate active substance; (coconut 12.0 9.3 7.3 fatty alcohol sulfate and tallow fatty alcohol sulfate in a weight ratio of 1: 1) via granules (b) as stated above
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Detergent Compositions (AREA)
- Cosmetics (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19519139 | 1995-05-30 | ||
DE19519139A DE19519139A1 (de) | 1995-05-30 | 1995-05-30 | Granulares Wasch- oder Reinigungsmittel mit hoher Schüttdichte |
PCT/EP1996/002186 WO1996038530A1 (de) | 1995-05-30 | 1996-05-22 | Granulares wasch- oder reinigungsmittel mit hoher schüttdichte |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0828818A1 true EP0828818A1 (de) | 1998-03-18 |
EP0828818B1 EP0828818B1 (de) | 1999-08-25 |
Family
ID=7762810
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96917393A Expired - Lifetime EP0828818B1 (de) | 1995-05-30 | 1996-05-22 | Granulares wasch- oder reinigungsmittel mit hoher schüttdichte |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0828818B1 (de) |
AT (1) | ATE183772T1 (de) |
DE (2) | DE19519139A1 (de) |
DK (1) | DK0828818T3 (de) |
ES (1) | ES2137700T3 (de) |
WO (1) | WO1996038530A1 (de) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19524722A1 (de) * | 1995-07-12 | 1997-01-16 | Henkel Kgaa | Granulares Wasch- oder Reinigungsmittel mit hoher Schüttdichte |
GB9711350D0 (en) * | 1997-05-30 | 1997-07-30 | Unilever Plc | Granular detergent compositions and their production |
GB9711356D0 (en) | 1997-05-30 | 1997-07-30 | Unilever Plc | Particulate detergent composition |
GB9711359D0 (en) | 1997-05-30 | 1997-07-30 | Unilever Plc | Detergent powder composition |
HUP0002906A3 (en) | 1997-05-30 | 2003-02-28 | Unilever Nv | Free-flowing particulate detergent composition |
ATE286960T1 (de) | 1998-09-25 | 2005-01-15 | Procter & Gamble | Waschmittelgranulate |
DE19915320A1 (de) * | 1999-04-03 | 2000-10-05 | Henkel Kgaa | Wasch- und Reinigungsmittelformkörper mit speziellen Tensidgranulaten |
CA2380327A1 (en) * | 1999-08-10 | 2001-02-15 | Paul R. Mort, Iii | Granular detergent compositions having surfactant particle with reduced electrolyte concentrations |
MY155571A (en) | 2009-04-24 | 2015-10-30 | Unilever Plc | Manufacture of high active detergent particles |
DE102015002877A1 (de) | 2015-03-09 | 2016-09-15 | Henkel Ag & Co. Kgaa | Granulares Wasch- oder Reinigungsmittel mit verbesserter Lösegeschwindigkeit |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8811447D0 (en) * | 1988-05-13 | 1988-06-15 | Procter & Gamble | Granular laundry compositions |
DK0486592T3 (da) * | 1989-08-09 | 1994-07-18 | Henkel Kgaa | Fremstilling af kompakterede granulater til vaskemidler |
DE4127323A1 (de) * | 1991-08-20 | 1993-02-25 | Henkel Kgaa | Verfahren zur herstellung von tensidgranulaten |
DE4203031A1 (de) * | 1992-02-04 | 1993-08-05 | Henkel Kgaa | Verfahren zur herstellung fester wasch- und reinigungsmittel mit hohem schuettgewicht und verbesserter loesegeschwindigkeit |
GB9205189D0 (en) * | 1992-03-10 | 1992-04-22 | Procter & Gamble | Granular detergent compositions |
DE4235646A1 (de) * | 1992-10-22 | 1994-04-28 | Henkel Kgaa | Verfahren zur Herstellung wasch- und reinigungsaktiver Extrudate |
DE4304062A1 (de) * | 1993-02-11 | 1994-08-18 | Henkel Kgaa | Verfahren zur Herstellung von Tensidgranulaten |
DE4406210A1 (de) * | 1994-02-25 | 1995-08-31 | Henkel Kgaa | Granulares Wasch- oder Reinigungsmittel |
-
1995
- 1995-05-30 DE DE19519139A patent/DE19519139A1/de not_active Withdrawn
-
1996
- 1996-05-22 EP EP96917393A patent/EP0828818B1/de not_active Expired - Lifetime
- 1996-05-22 DE DE59602883T patent/DE59602883D1/de not_active Expired - Fee Related
- 1996-05-22 DK DK96917393T patent/DK0828818T3/da active
- 1996-05-22 AT AT96917393T patent/ATE183772T1/de not_active IP Right Cessation
- 1996-05-22 WO PCT/EP1996/002186 patent/WO1996038530A1/de active IP Right Grant
- 1996-05-22 ES ES96917393T patent/ES2137700T3/es not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9638530A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE59602883D1 (de) | 1999-09-30 |
EP0828818B1 (de) | 1999-08-25 |
ATE183772T1 (de) | 1999-09-15 |
DE19519139A1 (de) | 1996-12-05 |
ES2137700T3 (es) | 1999-12-16 |
WO1996038530A1 (de) | 1996-12-05 |
DK0828818T3 (da) | 2000-02-14 |
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