DE69631873T2 - DETERGENTS CONTAINING MAP ZEOLITE AND AMYLASES - Google Patents

Description

The The present invention relates to a detergent composition comprising an amylase enzyme and a zeolite component as sequestering agent for the Water hardness.

conventional water-soluble inorganic phosphates such as sodium tripolyphosphate are used as builders for laundry detergents used.

In More recently, alkali metal aluminosilicate ion exchangers, in particular crystalline, water-insoluble sodium aluminosilicate zeolites as replacement for the inorganic phosphates have been proposed.

EP-A 0 021 491 (Procter & Gamble) For example, discloses detergent compositions which are a builder system which zeolite A, X or P (B) or a mixture Include thereof. EP-A-0 384 070 (Unilever) teaches special zeolite P materials a particularly low silicon to aluminum ratio of not greater than 1.33 (referred to herein as zeolite MAP) and describes its Use as detergent builder.

Applicants have now surprisingly found that a problem may arise when water-insoluble zeolite MAP, especially when present as small particle size particles, is used as a detergent builder in a detergent composition which does not contain an amylase enzyme suitable for use in laundering of textiles. The choice of a small particle size for any zeolite MAP component, ie particles having a particle size, measured as a d ₅₀ value of up to 1.0 μm, is recently represented in the art, for example by EP-A 0 384 070, has been taught as preferred.

The Problem concerns the formation of white residues, which on the textiles stick and stay on until the end of the laundry process. The degree of residue formation can vary. On colored textiles, the appearance of white residues tends to occur stronger to be visible as on white Textiles. white Form residues often on areas where stains exist by interacting with them kick and the whole Prevent stain removal. As a result of the visible contrast between the white ones Residues and the dyed Tissue can make the spot of dirt on which white residues are more prominent as the original one Spot.

It it was found that when an amylase enzyme in the zeolite MAP containing compositions, the problem of formation white Residues on Textiles is smaller, even if it is in the form of particles with low Size is present.

It was also found to be choosing a zeolite with a larger particle size than the one in the art, in particular of EP-A 0 384 070 as preferred scholarly, the tendency to occur in the formation of white deposits can further reduce.

Even though the prior art, as described by EP-A 0 384 070, EP-A 0 448 297, EP-A 0 522 726, EP-A 0 533 392, EP-A 0 544 492, EP-A 0 552 053 and EP-A 0 552 054 represents will, the use of enzymes in combination with zeolite MAP in laundry compositions does not submit any of these documents to the state of the art specifically the use of amylase enzyme with a zeolite MAP component open. Furthermore, none of these documents provides the prior art neither any teaching to that addressed by the present invention Problem of deposit white Residues still any solution this, which includes the choice of a particular enzyme.

• (a) einen Zeolith-Builder, umfassend Zeolith P mit einem Silicium-zu-Aluminium-Verhältnis von nicht größer als 1,33 (Zeolith MAP) und mit einer Teilchengröße, ausgedrückt als d₅₀-Wert, von 1 bis 5 μm, und
• b) ein Amylaseenzym, das in einer Menge von 0,1% bis 2% aktives Enzym des Gewichts der Zusammensetzung, auf einer Aktivitätsbasis von 60 KNU/g vorliegt.

According to the present invention, there is provided a detergent composition selected from liquid compositions and granular compositions having a bulk density of at least 550 g / L and containing

• (a) a zeolite builder comprising zeolite P having a silicon to aluminum ratio not greater than 1.33 (zeolite MAP) and having a particle size expressed as a d ₅₀ value of from 1 to 5 μm, and
• b) an amylase enzyme present in an amount of from 0.1% to 2% of the active weight of the composition, on an activity basis of 60 KNU / g.

Detailed description the composition

Zeolite MAP builder

Of the The first main component of the present invention is a zeolite MAP-Buil-der, optional in conjunction with one or more additional builders.

zeolite MAP typically ranges from 1% to 80% preferably from 15% to 40% of the weight of the composition.

zeolite MAP is described in EP-A-0 384 070 (Unilever). He is as one Alkali metal aluminosilicate of zeolite P type with a silicon to aluminum ratio of not bigger than 1.33, preferably within the range of 0.9 to 1.33 and further preferably within the range of 0.9 to 1.2.

From Of particular interest is zeolite MAP with a silicon to aluminum ratio of not bigger than 1.15 and more preferably not greater than 1.07.

• (i) Miteinander Mischen von Natriumaluminat mit einem Na₂O:Al₂O₃-Molverhältnis innerhalb eines Bereichs von 1,4 bis 2,0 und eines Natriumsilicats mit einem SiO₂:Na₂O-Molverhältnis innerhalb eines Bereichs von 0,8 bis 3,4 unter kräftigem Rühren bei einer Temperatur im Bereich von 25°C bis zum Siedepunkt von üblicherweise 95°C, um ein Gel mit der folgenden Zusammensetzung zu erhalten; Al₂O₃: (1,75–3,5) SiO₂ : (2,3–7,5) Na₂O : P (80–450)H₂O.
• (ii) Altern der Gelzusammensetzung während 0,5 bis 10 Stunden, vorzugsweise 3 bis 5 Stunden, bei einer Temperatur innerhalb des Bereichs von 70°C bis zum Siedepunkt von üblicherweise 95°C, unter ausreichendem Rühren, um irgendwelche vorliegenden Feststoffe in Schwebe zu halten;
• (iii) Trennen des so gebildeten kristallinen Natriumaluminiumsilicats, Waschen bis zu einem pH innerhalb des Bereichs von 10 bis 12,5 und Trocknen auf einen Feuchtigkeitsgehalt von nicht weniger als 5 Gew.-%, vorzugsweise bei einer Temperatur, welche 150°C nicht überschreitet.

Zeolite P with a Si: Al ratio of 1.33 can be prepared by the following steps:

• (i) Mixing together sodium aluminate having a Na ₂ O: Al ₂ O ₃ molar ratio within a range of 1.4 to 2.0 and a sodium silicate having a SiO ₂ : Na ₂ O molar ratio within a range of 0.8 to 3.4 with vigorous stirring at a temperature in the range of 25 ° C to the boiling point of usually 95 ° C to obtain a gel having the following composition; Al ₂ O ₃ : (1.75-3.5) SiO ₂ : (2.3-7.5) Na ₂ O: P (80-450) H ₂ O.
• (ii) aging the gel composition for 0.5 to 10 hours, preferably 3 to 5 hours, at a temperature within the range of 70 ° C to the boiling point of usually 95 ° C, with sufficient agitation to suspend any solids present hold;
• (iii) separating the crystalline sodium aluminum silicate thus formed, washing to a pH within the range of 10 to 12.5 and drying to a moisture content of not less than 5% by weight, preferably at a temperature not exceeding 150 ° C ,

preferred Drying methods are spray drying and the flash evaporation. It seems like the oven drying at too high temperatures, the calcium binding capacity of the product is below certain circumstances adversely affected.

In Water solved commercial Sodium metasilicate pentahydrate and commercial sodium silicate solution (water glass) Both are suitable sources of silicon for the production of zeolite P in accordance with the present invention. The reactants can each other added either rapidly or slowly in any order become. The rapid addition at room temperature and the slow addition at elevated Temperature (90-95 ° C) deliver both the desired Product.

Vigorous stirring of the Gels during the addition of the Reaktionssteilrehmer and at least moderate stirring during the subsequent However, aging step seems to be for the formation of pure zeolite P to be essential. Without stirring can obtained various mixtures of crystalline and amorphous material become.

zeolite MAP generally has a calcium binding capacity of at least 150 mg CaO per gram of anhydrous aluminum silicate, measured by the method described in GB-A 1,473,201 (Henkel). The calcium binding capacity is normally 160 mg CaO / g and may be up to 170 mg CaO / g.

Even though Zeolite MAP, like other zeolites, contains water of hydration the quantities and percentages for Zeolite for Purpose of the present invention conceptually in the form of anhydrous Material expressed.

Of the Water content, which at ambient temperature and humidity in hydrated Zeolite MAP is present generally about 20% by weight.

In a preferred aspect, the zeolite MAP detergent builder has a particle size, expressed as d ₅₀ , of from 1.0 to 10.0 microns, more preferably from 2.0 to 7.0 microns, most preferably from 2.5 to 5.0 μm.

The d ₅₀ value indicates that 50% by weight of the particles have a diameter smaller than the size in question. In particular, particle size may be determined by conventional analytical techniques, such as microscopic determination using a scanning electron microscope or by using a laser granulometer. Other methods for determining d ₅₀ values are given in EP-A 0 384 070.

amylase

Of the second major component of the compositions is an amylase enzyme, this means, an enzyme with an amylolytic activity.

The Amylase enzyme is in the compositions in accordance with the invention typically in a proportion of 0.01% to 5%, preferably 0.1% to 3%, more preferably from 0.2% to 2%, most preferably 0.3 to 1.5% active enzyme by weight of the composition, on one 60 KNU / g (Kilo Novo Units / gram) activity base, incorporated.

The unit "Kilo Novo Units / Gram (KNU / g)" is a well known means to define the amylolytic enzyme activity and is described in GB-A 1,269,839 (Novo). More specifically, 1 KNU is the amount of enzyme which is 5.25 Grams of starch (Merck, Amylum Solubile Erg. B. 6, lot 9947275) per hour by the method described in GB-A 1,269,839, which has the following standard conditions: substratum Soluble starch Calcium content in the solvent 0.0043 M reaction time 7-20 minutes temperature 37 ° C pH 5.6

The Amylase enzyme may be fungal or bacterial in origin. Amylases caused by chemical or genetic modification obtained from fungal or bacterially derived strains are also usable herein. The amylase enzyme is preferably an α-amylase.

preferred Close amylases for example α-amylases a, obtained from a special strain of B. licheniformis, in more detail described in GB-A 1,269,839. The specified return numbers for B. licheniformis strains, which are suitable, α-amylases to create, close NCIB 8061, NCIB 8059, ATCC 6634, ATCC 6598, ATCC 11945, ATCC 8480 and ATCC 9945a.

preferred commercially available α-amylases shut down for example, those under the trade names Rapidase and Maxamyl to be sold by Gist-Brocades; those under the trademark Taka-Therm L-340 from Miles Laboratories, Elkhart, Indiana become; those sold under the trademark Rohalase AT by Rohm and Haas, West Philadelphia, PA; and those under the trademarks Termamyl 60T and 120T, Fungamyl and BAN from Novo Industries A / S are sold.

Under In a preferred aspect, the amylases are designed therefor have been improved stability, in particular improved Oxidation resistance, for example in a bleaching environment, and an improved one heat resistance exhibit. The stability may be known using any of those known in the art technical test procedure be measured, including specified in WO 94/02597. Increased stability amylases are commercial available from Novo Industries S / A or Genencor International.

High preferred amylases with increased oxidation resistance are made using site-specific mutagenesis of one or two several of the bacillus amylases, in particular bacillus α-amylases, regardless of whether one, two or more amylase strains immediate precursor are. Preferred amylases of this type are described in WO-A 94/02597 and comprise a mutant using alanine or threonine, preferably threonine, a substitution of the in position 197 methionine residues in the B. licheniformis amylase, which is sold under the trademark Termamyl, takes place, or at a homologous position change a similar one Stammamylase, such as B. amyloliquefaciens, B. subtilis or B. stearothermophilus.

Other preferred oxidative stability-enhanced amylases disclosed by B. licheniformis NCIB806 are described in an article by Genencor International titled "Oxidatively Resistant α-Amylases" presented by C. Mitchinson at the 207th American Chemical Society National Meeting, March 13-17, 1994. Methionine (Met) Met was simultaneously substituted at positions 8, 15, 197, 256, 304, 366, and 438 resulting in particular mutants, of which M 197L and M 197T are particularly important, with the M 197T variant is the most stable squeezed variant.

Other preferred amylases with increased oxidation resistance shut down WO-A 94/18314 (Genencor International) and WO-A 94/02597 (Novo) described one. It can be any other amylase with increased oxidation resistance used, for example, by region-specific Mutagenesis of known chimeras, Derive hybrids or simple mutant parent forms of available amylases. It Other enzyme modifications are acceptable including in WO-A 95/09909 (Novo).

It It is understood that enzymes for incorporation into solid detergent compositions generally sold as enzyme granules commercially, which contain active enzyme on a variety of inert support materials, the For example, alkali metal sulfates, carbonates and silicates may be included. Optional Organic binder materials are also incorporated. Under a preferred aspect is the calcium content of these enzyme granules kept to a minimum good storage stability of the Enzyme in the so-equipped To ensure product.

Additional detergent ingredients

The Detergent composition of the invention may contain other detergent ingredients such as surfactants, co-builder, Bleaching agents, fluorescers, anti-redeposition agents, inorganic Salts, such as sodium sulfate, or enzymes, foam control agents, Fabric softeners, pigments, dyed Speckles and perfumes.

surfactant

The Detergent composition of the invention includes a surfactant consisting of anionic, nonionic, zwitterionic, ampholytic and cationic surfactants is selected.

The Surfactant is preferably in the detergent compositions in one Proportion of 1% to 50%, preferably 3% to 30%, most preferably from 5% to 20% of the weight of the compositions.

It Many suitable detergent-active compounds are available and in the literature in detail described (for example, "Surfase Active Agents and Detergents ", Volumes I and II by Schwartz, Perry and Berch).

Examples of suitable additional close to anionic surfactants anionic sulfates, olefin sulfonates, alkyl xylene sulfonates, dialkyl sulfosuccinates and fatty acid ester sulfonates one. Sodium salts are generally preferred.

anionic sulfate surfactants

Anionic sulfate surfactants suitable for use herein include the linear and branched primary alkyl sulfates, alkyl ethoxy sulfates, fatty oleoyl glycerol sulfates, alkyl phenol ethylene oxide ether sulfates containing the C ₅ -C ₁₇ acyl-N- (C ₁ -C ₄ alkyl) and -N- (C ₁ -C ₂ -hydroxyalkyl) glucamine sulfates, and sulfates of alkyl polysaccharides such as the sulfates of alkyl polyglucoside (of which the nonionic, non-sulfated compounds are described herein).

Alkyl ethoxysulfate surfactants are preferably selected from the group consisting of the C ₆ -C ₁₈ alkyl sulfates which have been ethoxylated with from 0.5 to 20 moles of ethylene oxide per molecule. The alkyl ethoxysulfate surfactant is more preferably a C ₆ -C ₁₈ alkyl sulfate which has been ethoxylated with from 0.5 to 20, preferably from 0.5 to 55, moles of ethylene oxide per molecule.

anionic sulfonate

Anionic sulfonate surfactants suitable for use herein include the salts of li lower C ₅ -C ₂₀ alkyl benzene sulfonates, alkyl ester sulfonates, C ₆ -C ₂₄ primary or secondary alkanesulfonates, C ₆ -C ₂₄ olefin sulfonates, sulfonated polycarboxylic acids, alkyl glycerol sulfonates, fatty acylglycerol sulfonates, fatty oleyl glycerol sulfonates, and any mixtures thereof.

nonionic surfactant

The Nonionic surfactant is preferably a hydrophobic nonionic Surfactant, in particular an alkoxylated nonionic surfactant, with a hydrophilic / lipophilic balance (HLB) value of <9.5, more preferably of <10.5.

Examples suitable hydrophobic alkoxylated nonionic surfactants include alkoxylated ones Adducts of fatty alcohols, which on average less than 5 alkylene oxide groups per molecule contain.

The Alkylene oxide radicals can for example ethylene oxide radicals or mixtures thereof with propylene oxide radicals be.

Preferred alkylene oxide adducts of fatty alcohols for use in the present invention may be suitably selected from those having the general formula: RO- (C _n H _2n O) _Y H wherein R is an alkyl or alkenyl group of at least 10 carbon atoms, most preferably of 10 to 22 carbon atoms, y is 0.5 to 3.5 and n is 2 or 3.

Preferred nonionic surfactants include primary aliphatic alcohols C ₁₁ -C ₁₅ a, which are not condensed with an average of five ethylene oxide groups per mole of alcohol than with an ethylene oxide content of less than 50 wt .-%, preferably from 25% to less than 50 wt .-%.

One Particularly preferred ethoxylated aliphatic alcohol is a primary Alcohol with an average of 12 to 15 carbon atoms in the alkyl chain, which condenses on average with three ethoxy groups per mole of alcohol is.

Specific examples of suitable alkoxylated Fettalkoholaddukte are Synperonic A3 (ex ICI) which is a C ₁₃ -C ₁₅ -Alkolol with about three ethylene oxide groups per molecule and Empilan KB3 (ex Marchon) which is lauric alcohol 3EO.

Another class of nonionic surfactants includes alkyl polyglucoside compounds having the general formula RO (C _n H _2n O) _t Z _x wherein Z is a glucose derived unit; R is a saturated hydrophobic alkyl group containing from 12 to 18 carbon atoms; t is 0 to 10 and n is 2 or 3; x is 1.1 to 4 and the compounds include less than 10% unreacted fatty alcohol and less than 50% short chain alkyl glucosides. Compounds of this type and their use in detergent compositions are disclosed in EP-A 0 070 074, 0 070 077, 0 075 996 and 0 094 118.

Co-Builder

In addition to Zeolite MPA can make the builder system an organic or inorganic Include co-builders.

suitable organic co-builders can monomeric or polymeric carboxylates such as citrates or polymers of Acrylic, methacrylic and / or maleic acids in neutralized form be. Suitable inorganic co-builders include carbonates and amorphous and crystalline phyllosilicates.

Suitable crystalline layered silicates have the composition: NaMSi _x O _{2x + 1} · _y H ₂ O wherein M is sodium or hydrogen, preferably sodium; x is a number from 1.9 to 4; and y is a number from 0 to 20. Such materials are described in U.S. Patent Nos. 4,664,839; No. 4,728,443 and No. 4,820,439 (Hoechst AG). Particularly preferred are compounds in which x = 2 and y = 0. The synthetic material is commercially available from Hoechst AG as δ-Na ₂ Si ₂ O ₅ (SKS6) and is described in US-A 4,664,830.

Of the Total content of detergent builders in the granular composition ranges typically from 10 to 80 wt%, more preferably from 15 to 60% by weight, and most preferably from 10 to 45% by weight.

bleach

Detergent compositions according to the invention can suitably also contain a bleach system. This includes preferably one or more peroxygen bleaching compounds, such as inorganic persalts or organic peroxyacids, which can be used in conjunction with bleach precursors to to improve the bleaching action at low temperatures.

The Bleach system preferably comprises a peroxygen bleach compound, preferably an inorganic persalt, optionally in combination with a peroxygen bleach precursor. Suitable persalts include sodium perborate monohydrate and tetrahydrate and sodium percarbonate, of which sodium percarbonate most preferred.

preferred Bleach precursor are peracetic acid precursors like Tetraacetylethylenediamine (TAED); Peroxybenzoesäurevorläufer.

physical shape

The Detergent composition of the invention may be of any type, such as powder, liquids and gels. granular and liquid However, compositions are preferred.

production method

The Detergent compositions according to the invention can be prepared by any suitable method. The particulate detergent compositions be suitably by any tower method (spray-drying) or non-tower method.

at Procedures associated with a spray-drying tower become first by spray-drying a slurry made a base powder and other ingredients, which Processing on the way over the slurry are unsuitable then sprayed on or added (postdosed).

Of the MAP zeolite is for the inclusion in the slurry suitable, although it may be advantageous for procedural reasons, to incorporate a portion of the zeolite builder after the tower. The crystalline phyllosilicate, when used, is also over incorporated a non-tower process and is preferably replenished.

alternative can particulate Detergent compositions in accordance with the invention according to non-tower overall processes, such as granulation, getting produced.

The granular detergent compositions according to the invention can with any suitable bulk density getting produced. The compositions preferably have a bulk density of at least 400 g / l, preferably of at least 550 g / l, on most preferably at least 700 g / l, with particular preference of at least 800 g / l.

The Advantages of the present invention are with high density powders, of for example 700 g / l or above, especially clear. Such Powder can either spray-dried by compaction Powder after the tower or by total process without tower, such as dry mixing and granulating; In both cases can be beneficial a fast running mixer / granulator can be used. Procedure under Use of fast running mixers / granulators are for example in EP-A 0 340 013, EP-A 0 367 339, EP-A 0 390 251 and EP-A 0 420 317 (Unilever) disclosed.

The Detergent composition of the invention can be considered liquid A detergent composition can be formulated which is aqueous or can be anhydrous. The term "liquid" as used herein includes pasty-vikose Formulations, such as gels. The liquid detergent composition generally has a pH of 6.5 to 10.5.

Of the Total content of detergent builder is in the liquid composition preferably 5 to 70% of the liquid Total composition.

In The following examples show compositions according to the invention for demonstration purposes.

LAS

Lineares C₁₁-C₁₃-Alkylbenzolsulfonat

45AS

Verzweigtes Natriumalkylsulfattensid, enthaltend C₁₄-C₁₅-Alkylketten

246AS

Natriumalkylsulfattensid, enthaltend eine Alkylkettenlängengewichtsverteilung von 15% C₁₂-Alkylketten, 45% C₁₄-Alkylketten, 35% C₁₆-Alkylketten; 5% C₁₈-Alkylketten

TAS

Natriumalkylsulfattensid, enthaltend vorzugsweise von Tallöl abgeleitete C₁₆-C18-Alkylketten

24AE3S

C₁₂-C₁₄-Alkylethoxysulfat, enthaltend im Durchschnitt drei Ethoxygruppen pro Mol

35E3

Ein primärer C₁₃-C₁₅-Alkohol, kondensiert mit im Durchschnitt 3 Molen Ethylenoxid

25E3

Ein primärer C₁₂-C₁₅-Alkohol, kondensiert mit im Durchschnitt 3 Molen Ethylenoxid

24EY

Ein linearer primärer C₁₂-C₁₄-Alkohol, kondensiert mit im Durchschnitt Y Molen Ethylenoxid

Citrat

Natriumcitrat

Carbonat

Wasserfreies Natriumcarbonat

Perborat

Natriumperborattetrahydrat

Percarbonat

Natriumpercarbonat

TAED

Tetraacetylethylendiamin

Silicat

amorphes Natriumsilicat (SiO₂:Na₂O-Verhältins wie normal)

CMC

Carboxymethylcellulose

Schaum-unterdrücker

25% Paraffinwachs von Fp 50°C, 17% hydrophobes Siliciumdioxid, 58% Paraffinöl

Zeolith MAP

hydratisierter Natriumaluminiumsilicat-Zeolith MAP mit einem Silicium/Aluminium-Verhältnis von 1,07.

MA/AA

Copolymer aus 1:4 Malein-/Acrylsäure, mit einem mittlerem Molekulargewicht von etwa 80.000.

Amylase

Amylolytisches Enzym, verkauft unter dem Warenzeichen Termamyl 60T von Novo Industries A/S (60 KNU/Gramm Enzymaktivität)

BSA

Amylolytisches Enzym – M 197T-Variante, mit erhöhter Oxidationsbeständigkeit (60 KNU/Gramm Enzymaktivität)

Protease

Proteolytisches Enzym, verkauft von Novo Industries S/A unter dem Warenzeichen Savinase mit einer Aktivität von 4,0 KNPU/Gramm.

Lipase

Lipolytisches Enzym, verkauft von Novo Industries A/S unter dem Warenzeichen Lipolase mit einer Aktivität von 100.000 LU/Gramm

In the detergent compositions, the abbreviated ingredient designations have the following meanings:

READ

Linear C ₁₁ -C ₁₃ -alkylbenzenesulfonate

45AS

Branched sodium alkyl sulfate surfactant containing C ₁₄ -C ₁₅ alkyl chains

246AS

Sodium alkyl sulfate surfactant containing an alkyl chain length weight distribution of 15% C ₁₂ alkyl chains, 45% C ₁₄ alkyl chains, 35% C ₁₆ alkyl chains; 5% C ₁₈ alkyl chains

TAS

Sodium alkyl sulfate surfactant containing preferably tall oil derived C ₁₆ -C 18 alkyl chains

24AE3S

C ₁₂ -C ₁₄ -Alkylethoxysulfat containing, on average, three ethoxy groups per mole

35E3

A primary C ₁₃ -C ₁₅ alcohol condensed with on average 3 moles of ethylene oxide

25E3

A primary C ₁₂ -C ₁₅ alcohol condensed with on average 3 moles of ethylene oxide

24EY

A linear primary C ₁₂ -C ₁₄ alcohol condensed with an average of Y moles of ethylene oxide

citrate

sodium citrate

carbonate

Anhydrous sodium carbonate

perborate

sodium perborate

percarbonate

sodium

TAED

tetraacetylethylenediamine

silicate

amorphous sodium silicate (SiO ₂ : Na ₂ O ratio as normal)

CMC

carboxymethylcellulose

Foam suppressor

25% paraffin wax of mp 50 ° C, 17% hydrophobic silica, 58% paraffin oil

Zeolite MAP

hydrated sodium aluminosilicate zeolite MAP with a silicon / aluminum ratio of 1.07.

MA / AA

Copolymer of 1: 4 maleic / acrylic acid, with an average molecular weight of about 80,000.

amylase

Amylolytic enzyme sold under the trademark Termamyl 60T by Novo Industries A / S (60 KNU / gram of enzyme activity)

BSA

Amylolytic enzyme - M 197T variant, with increased oxidation resistance (60 KNU / gram enzyme activity)

protease

Proteolytic enzyme sold by Novo Industries S / A under the trademark Savinase with an activity of 4.0 KNPU / gram.

lipase

Lipolytic enzyme sold by Novo Industries A / S under the trademark Lipolase with an activity of 100,000 LU / gram

example 1

The below granular Laundry detergent compositions were in accordance with of the invention (parts by weight). All amylase enzyme components refer to the level of active enzyme expressed on 60 KNU / g activity base.

water and Miscellaneous (including Suds suppressors, Sodium sulfate, perfume) as the remainder.

Example 2

The below granular Laundry detergent compositions with the density of 850 g / l were in accordance with the invention (Parts by weight). All Amylase shares refer to the level of active enzyme expressed on a 60 KNU / g activity basis.

water and Miscellaneous (including Suds suppressors, Sodium sulfate, perfume) as the remainder.

Claims (9)

A detergent composition selected from liquid compositions and granular compositions having a bulk density of at least 550 g / l and comprising (a) a zeolite builder comprising zeolite P having a silicon to aluminum ratio not greater than 1.33 (zeolite MAP ) and having a particle size expressed as d ₅₀ value of 1 to 5 μm, and (b) an amylase enzyme containing in an amount of 0.1% to 2% of active enzyme by weight of the composition on an activity basis of 60 KNU / g. A composition according to claim 1 which is a particulate laundry detergent composition is nonionic surfactant, the zeolite builder, organic or inorganic co-builder and the amylase system. A detergent composition according to at least one preceding Claim, wherein the zeolite builder is crystalline and in one Proportion of 15 to 40 wt .-% of the composition is present. A detergent composition according to at least one preceding Claim, wherein the amylase system is an α-amylase. A detergent composition according to at least one preceding Claim, wherein the amylase system has been modified to its oxidative stability to increase. A detergent composition according to at least one preceding Claim containing a surfactant in a proportion of 5 to 50 wt .-% the composition. A detergent composition according to at least one preceding Claim, containing a co-builder, which is a crystalline Phyllosilicate is. A detergent composition according to at least one preceding A claim comprising a bleaching system comprising a peroxy bleach compound and a peroxyacid bleach precursor. A detergent composition according to claim 8, wherein the Peroxy bleach compound is sodium percarbonate.