CN1285864A - Detergent powder compositions with gulcamide-like bleach enhancers - Google Patents

Abstract

A detergent powder composition comprising an anionic and or nonionic surfactant, a bleach and a stain-removal enhancer selected from N-(optionally substituted) acyl-N-(C5C31) hydrocarbyl polyhydroxy amides, alkyl aldonamides, alkyl or alkenyl glycasuccinimides and N-(optionally substituted) aminoalkyl polyhydroxy fatty acid amides.

Description

Detergent powder composition with glucosamide-like bleach booster

The present invention relates to detergent powder compositions, especially those containing a bleaching component which facilitates the removal of certain stains from fabrics.

其中，R¹为氢或高达4个碳原子的烃基基团，R²为脂肪族类型的烃基基团，通常具有5-31个碳原子，Z为任选烷氧基化的多羟基基团，可以是线性构型，也可以是糖化物型(sugar-type)的构型。Over the past few years, there has been a great deal of interest in incorporating polyhydroxy fatty acid amides into various laundry products. Usually these substances are used to enhance the detergency. These materials are generally surfactant compounds of formula (A):

wherein R is ^hydrogen or a hydrocarbyl group of up to 4 carbon atoms, ^R is a hydrocarbyl group of the aliphatic type, usually having 5 to 31 carbon atoms, and Z is an optionally alkoxylated polyhydroxy group , can be a linear configuration or a sugar-type configuration.

There are numerous patent documents dealing with the use of polyhydroxy fatty acid amides in laundry products. For example, WO-A-92 06155 describes the use of materials of formula (A) wherein Z is linear in detergent compositions containing non-borate bleaches.

GB-A-2 292 564 discloses the use of polyhydroxy fatty acid amides in granular detergent compositions comprising surfactants, bleaches and builders, wherein the surfactant:builder ratio is not less than 0.8 : 1. These compositions have a low pH in the wash solution.

We also know, for example, from WO-A-93 25647 that polyhydroxy fatty acid amides are used to stabilize aqueous liquid or cream detergent compositions. However, the latter reference also indicates that, for use in such liquid detergents, a preferred polyhydroxy fatty acid amide is N-acetylglucamide. However, N-acetylglucamide is not chemically a polyhydroxy fatty acid amide. In practice it corresponds to a compound similar to formula (A), but with transposed long-chain ( ^R2 ) and short-chain ( ^R1 ) groups, and wherein Z is a glucose moiety.

EP-A-285 768 discloses the use of a class of materials comprising both polyhydroxy fatty acid amides and N-acetylglucamides as thickeners in aqueous liquid washing liquids.

Surprisingly, we have now found that N-acetylglucamide and certain analogs help enhance the removal of bleach-sensitive stains when incorporated into detergent powder compositions. The present invention therefore now provides a detergent powder composition comprising an anionic and/or nonionic surfactant, a bleaching agent and a detergency enhancer selected from the group consisting of N-(optionally substituted) acyl-N- (C ₅ -C ₃₁ ) Hydrocarbyl polyhydroxy amides, alkyl aldonamides, alkyl or alkenyl sugar succinimides and N-(optionally substituted) aminoalkyl polyhydroxy fatty acids amides.

其中，R³为C₅-C₃₁烃基基团，R⁴为氢或C_1-4烷基基团，Z¹为一-、二-或低聚-糖化物或任选与具有一-、二-或低聚-糖基的苷键合的多羟基烷基基团。If the soil release booster comprises N-(optionally substituted) acyl-N-(C ₅ -C ₃₁ )hydrocarbyl polyhydroxyamides, compounds of formula (I) are preferred:

Wherein, R ³ is a C ₅ -C ₃₁ hydrocarbyl group, R ⁴ is hydrogen or a C _1-4 alkyl group, Z ¹ is mono-, di- or oligo-saccharide or optionally combined with mono-, Di- or oligo-glycoside-bonded polyhydroxyalkyl groups.

In general, substances of formula (I) are commercially available.

Alkylaldonamides are alkyl derivatives of amides of aldonic acid (or aldonolactone), which in turn defines aldonic acid as a sugar substance in which a pseudoaldehyde or pseudoketone The sugar (pseudoketose) group (commonly found in the C ₁ or C ₂ position of the sugar) is oxidized to a carboxylic acid group, which is then dried and cyclized to an aldonolactone. Aldosamides are based on a combination of one saccharide unit (e.g. glyceramide, ribosamide, glucosamide or glucoheptamide), two saccharide units (e.g. lactosamide, maltosamide, melibiosamide, cellobiosamide , gentiobiosamide or D-glucopyranyl-(1-5)-D-arabinamide), or they may be based on compounds comprising two or more saccharide units (such as maltotriosamide or maltosexa sugar amides) compounds. Any carbohydrate can be used as long as the sugar has a pseudoaldehyde or pseudoketose group that can be oxidized to a carboxylic acid group.

If the soil release enhancer is an alkylaldonamide, it is preferably a compound of the formula (II): Wherein, n=1-6; m=1-6; each X ¹ is independently hydrogen or C ₁ -C ₄ alkyl group; each W ¹ is independently amine (NH), amine salt (NHA+) , ether (O), sulfur (S), sulfur monoxide (SO), sulfur dioxide (SO ₂ ), ester (SOO or OOC), amide (NACO, CONA or NCOA) groups; p=0-50; G ¹ and ^G independently represent a mono-, di-, oligo-, polysaccharide group, or (CH ₂ CH ₂ O) _q ----H or (CH ₂ CHCH ₃ O) _r ----H group . q=1-50; r=1-50; A ¹ =hydrogen, hydroxy C ₁ -C ₁₈ alkyl group, C ₁ -C ₁₈ straight or branched chain, can be unsubstituted or aromatic, ring Saturated or unsaturated hydrocarbons substituted by aliphatic, mixed aromatic aliphatic groups, or mixtures thereof; and R is ^a straight or branched chain, saturated or unsaturated hydrocarbon, which may be unsubstituted or comprised of about 4 to about Aromatic, cycloaliphatic or mixed araliphatic groups of 28 carbon atoms are substituted.

Compounds of formula (II) can be prepared as described in US-A-5 521 293.

其中，A²选自由以下结构(经所述结构上的氮原子附着于琥珀酸环上)所组成的基团：

其中，每一个基团G独立地选自氢、SO₃M、PO₃M、(CH₂CH₂O)_aH、(CH₂CHCH₃O)_bH，以及一-、二、低聚-或多糖；M选自氢、碱金属、碱土金属、铵、烷基取代的铵和具有约1-约5个碳原子的一-、二-、三-链烷醇铵基团；每一个W²独立地选自CH₂基团和氧原子；每一个X²独立地选自氢和具有约1-约4个碳原子的烷基基团；每一个Y独立地选自NR⁷、+N(R⁷)₂、O、S、SO、SO₂、COO、OOC、CONR⁷和NR⁷CO基团；每一个Z²独立地选自CH=CH和CH₂CH₂基团；R⁶为直链或支链的饱和与不饱和烃，其可以是未取代的或被具有约1-约31个碳原子的芳族、环脂族或混合的芳族基团所取代；R⁷选自氢、具有约1-约6个碳原子的羟基烷基基团、直链或支链的、饱和与不饱和烃，其可以是未取代的或被具有约1-约8个碳原子的芳族、环脂族或混合的芳族脂族基团所取代；R⁸选自氢和具有约1-约6个碳原子的烷基、链烯基或羟基烷基基团；R⁹选自氢和具有约1-约6个碳原子的烷基、链烯基或羟基烷基基团；和a=0-35；b=0-35；c=1-3；d=1-5；e=0-35；f=0-8；g=1-6；h=0-2；i=0-4；j=0-3；k=0-3和l=0-1。If the soil release booster is an alkyl- or alkenyl-sugar succinimide, it is preferably a compound of the formula (III):

Wherein, ^A2 is selected from the group consisting of the following structures (attached to the succinic acid ring via the nitrogen atom on the structure):

Wherein, each group G is independently selected from hydrogen, SO ₃ M, PO ₃ M, (CH ₂ CH ₂ O) _a H, (CH ₂ CHCH ₃ O) _b H, and mono-, di-, oligomer- or polysaccharides; M is selected from the group consisting of hydrogen, alkali metals, alkaline earth metals, ammonium, alkyl-substituted ammonium, and one-, two-, three-alkanolammonium groups with about 1 to about 5 carbon atoms; each W ² are independently selected from CH _groups and oxygen atoms; each ^X is independently selected from hydrogen and alkyl groups having from about 1 to about 4 carbon atoms; each Y is independently selected from NR ⁷ , +N (R ⁷ ) ₂ , O, S, SO, SO ₂ , COO, OOC, CONR ⁷ and NR ⁷ CO groups; each Z ² is independently selected from CH=CH and CH ₂ CH ₂ groups; R ⁶ is Linear or branched saturated and unsaturated hydrocarbons, which may be unsubstituted or substituted with aromatic, cycloaliphatic or mixed aromatic groups having from about 1 to about 31 carbon atoms; R ^is selected from Hydrogen, hydroxyalkyl groups having from about 1 to about 6 carbon atoms, straight or branched, saturated and unsaturated hydrocarbons, which may be unsubstituted or replaced by aromatic compounds having from about 1 to about 8 carbon atoms substituted by aromatic, cycloaliphatic or mixed aromatic aliphatic groups; R is selected from hydrogen and ^alkyl , alkenyl or hydroxyalkyl groups having from about 1 to about 6 carbon atoms; R ^is selected from Hydrogen and an alkyl, alkenyl or hydroxyalkyl group having from about 1 to about 6 carbon atoms; and a=0-35; b=0-35; c=1-3; d=1-5; e=0-35; f=0-8; g=1-6; h=0-2; i=0-4; j=0-3; k=0-3 and l=0-1.

Compounds of formula (III) can be prepared as described in US-A-5 541 341.

其中，R¹⁰如此前的基团R³所定义，R¹¹为C₁或C₂亚烷基，R¹²和R¹³独立地选自氢和C_1-4烷基，Z³如此前的基团Z¹所定义。If the soil release enhancer is an N-(optionally substituted) aminoalkyl polyhydroxy fatty acid amide, it is preferably a compound of formula (IV):

Wherein, R ¹⁰ is as defined in the previous group R ³ , R ¹¹ is C ₁ or C ₂ alkylene, R ¹² and R ¹³ are independently selected from hydrogen and C _1-4 alkyl, Z ³ is the same as the previous group Group Z defined by ¹ .

The compositions of the present invention may optionally comprise one or more soil release enhancers selected from any of the previously defined soil release enhancers. Preferably the total amount of soil release enhancers is from 0.1 to 10% by weight of the total composition, usually from 0.5 to 5% by weight, especially from 2 to 3% by weight.

Compositions according to the invention may also include a bleaching agent. Suitable bleaching agents include halogen, especially chlorine bleaching agents, such as those provided in the form of alkali metal hypohalites, such as hypochlorite. Preference is given to oxygen bleaches, for example in the form of inorganic persalts, preferably with precursors, or as peroxyacid compounds.

In the case of inorganic persalt bleaches, the precursors make the bleaching more effective at low temperatures, i.e. in the range of ambient temperature - about 60°C, so this bleaching system is also commonly known as a low temperature bleaching system, in are well known in the art. Inorganic persalts such as sodium perborate (both monohydrate and tetrahydrate) act to release reactive oxygen species in solution, and the precursors are usually those with one or more reactive acyl residues (resulting in the formation of peracids). Organic compounds which provide more effective bleaching at low temperatures than peroxygen bleaching compounds alone.

Typical examples of suitable persalts are alkali metal perborates (including tetrahydrates and monohydrates), alkali metal percarbonates, persilicates and perphosphates, of which sodium perborate and percarbonate are preferred. sodium.

Another class of preferred peroxygen compounds which may be incorporated to enhance formulation/dispersibility in water are the anhydrous perborates described in EP-A-217454 for this purpose.

Various precursors for peroxygen bleaching agents have been described in documents such as GB-A-836,988, GB-A-855,735, GB-A-907,356, GB-A-907,358, GB-A-907,950, GB-A-1,003,310 and GB-A-1,246,339, US-A-3,332,882, US-A-4,128,494, CA-A-844,481 and ZA-A-686,344 are fully described.

The exact mode of action of these precursors is still unknown, but we believe that the precursors react with inorganic peroxygen compounds to generate peracids, which then decompose to release reactive oxygen species.

These are generally compounds containing N-acyl or O-acyl residues in the molecule, which exert their activated effect on contact with peroxygen compounds in the wash liquor.

Among these groups, typical examples of precursors are various polyacylated alkylenediamines such as N,N,N ¹ ,N ¹ -tetraacetylethylenediamine (TAED) and N,N,N , ¹ N ¹ -Tetraacetylmethylenediamine (TAMD); various acylated glycolurils such as tetraacetyl glycoluril (TAGU); triacetyl cyanurate and sodium sulfophenyl ethyl carbonate ester.

A particularly preferred precursor is N,N,N ¹ ,N ¹ -tetraacetylethylenediamine (TAED).

其中，R为含有1-20个碳原子的亚烷基或取代的亚烷基基团，或含有6-8个碳原子的亚芳基基团，Y为氢、卤素、烷基、芳基或在含水溶液中能提供阴离子基团的任何基团。Organic peroxyacid compound bleaches are preferably solid at room temperature, most preferably those having a melting point of at least 50°C. Most generally, they are organic peroxyacids and their water-soluble salts having the general formula:

Wherein, R is an alkylene or substituted alkylene group containing 1-20 carbon atoms, or an arylene group containing 6-8 carbon atoms, and Y is hydrogen, halogen, alkyl, aryl Or any group capable of providing an anionic group in aqueous solution.

According to the invention, the amount of bleaching agent may be, for example, 5-50% by weight of the total composition, for example, 10-30% by weight. When the bleaching agent contains inorganic persalts and precursors, and/or peracids, the amount of persalt may be, for example, 6-30% by weight of the total composition, preferably 10-30% by weight, more preferably 15-25% (weight).

The amount of precursor and/or peracid is preferably 0.5-10% by weight of the total composition, more preferably 1-5% by weight. Generally, while the weight ratio of persalt compound to precursor is from about 15:1 to about 2:1, the ratio is preferably from about 10:1 to about 3.5:1.

Compositions according to the invention also contain one or more anionic surfactants.

Suitable anionic surfactants are generally water-soluble alkali metal salts of organic sulfates and sulfonates having alkyl groups containing from about 8 to about 22 carbon atoms, the term "alkyl" being used to include higher acyl groups the alkyl moiety. Examples of suitable synthetic anionic detergent compounds are sodium and potassium alkyl sulphates, especially those obtained by sulphating higher (C ₈ -C ₂₀ ) alcohols (eg derived from tallow or coconut oil), alkyl (C 20 ) alcohols, Sodium and potassium ₉ -C ₂₀ )benzenesulfonates, especially linear secondary alkyl (C ₁₀ -C ₁₅ ) sodium benzenesulfonates; sodium alkyl glyceryl ether sulfates, especially derived from tallow or coconut oil higher alcohols and ethers of synthetic alcohols derived from petroleum; coconut oil fatty monoglyceride sodium sulfate and sodium sulfonate; higher (C ₆ -C ₁₈ ) fatty alcohols - alkylene oxides, especially ethylene oxide sulfates Sodium and potassium salts, reaction products of fatty acids such as coconut fatty acids esterified with isethionic acid and neutralized with sodium hydroxide; sodium and potassium salts of fatty acid amides of methyl taurine; various alkane monosulfonates , as derived by reacting alpha-olefins (C _8-20 ) with sodium bisulfite or by reacting alkanes with SO ₂ and Cl ₂ followed by hydrolysis with base to form random sulfonates those; and various olefin sulfonates, a term used to describe substances made by reacting olefins, especially C ₁₀ -C ₂₀ α-olefins, with SO ₃ , followed by neutralization and hydrolysis of the reaction products. Preferred anionic detergent compounds are sodium (C ₁₁ -C ₁₅ ) alkylbenzene sulphonates and sodium (C ₁₆ -C ₁₈ ) alkyl sulphates.

The amount of anionic surfactants in the compositions according to the invention preferably does not exceed 30% by weight of the total composition, preferably 1-20% by weight, more preferably 5-15% by weight.

Suitable nonionic surfactants include, inter alia, compounds having a hydrophobic group and active hydrogen atoms, such as aliphatic alcohols, acids, amides or alkylphenols with alkylene oxides, especially ethylene oxide, alone or in combination with Propylene reaction product. Specific nonionic detergent compounds are alkyl (C ₆ -C ₁₈ ) primary or secondary straight or branched chain alcohols with oxypropylene, and the condensation of ethylene oxide with the reaction product of propylene oxide and ethylenediamine product of. Other so-called nonionic detergent compounds include long chain tertiary amine oxides, long chain tertiary phosphine oxides and dialkyl sulfoxides.

Compositions according to the present invention may also optionally comprise one or more additional surfactants selected from cationic, zwitterionic and amphoteric surfactants, and mixtures thereof (provided they are mutually compatible). For example, they may be selected from the following classes, subclasses and special substances: "Surface Active Agents" by Schwartz & Perry, Volume I, (Interscience 1949) and "Surface Active Agents" by Schwartz, Perry & Berch, Volume II , (Interscience 1958), latest edition of "McCutcheon's Emulsifiers & Detergents", or "Tensid-Taschenbuch", published by the McCutcheon division of Manufacturing Confectioners Company, H. Stache, 2nd edition, Carl Hanser Verlag, München & Wen, 1981 Year.

The total amount of surfactant substances (including anionic surfactants) in the composition according to the invention may be 2-30% by weight of the total composition, for example 5-25% by weight, usually 10- 25% by weight.

Compositions according to the invention may also optionally include alkali metal soaps of long chain mono- or dicarboxylic acids (eg having 12-18 carbon atoms). Typical acids of this type are oleic acid, ricinoleic acid and various fatty acids derived from castor oil, rapeseed oil, peanut oil, coconut oil, palm kernel oil or various mixtures thereof. Sodium or potassium soaps of these acids can be used. Typical levels of soap are 0.5-5% by weight of the total composition.

It is also preferred that the compositions according to the invention comprise detergency builder materials. A builder material is any material that reduces free calcium ions in the wash liquor and preferably imparts various other beneficial properties to the composition such as creating an alkaline pH, suspending stains removed from fabrics and dispersing fabric softening clay materials.

When phosphorus-containing inorganic detergency builders are present, examples thereof include the various water-soluble salts, especially the alkali metal pyrophosphates, orthophosphates, polyphosphates and phosphonates. Specific examples of inorganic phosphate builders include sodium and potassium tripolyphosphates, sodium and potassium phosphates, and sodium and potassium hexametaphosphates. Phosphonate sequestration builders can also be used.

When present, phosphorus-free inorganic detergency builders include the various water-soluble alkali metal carbonates, bicarbonates, silicates and crystalline and amorphous aluminosilicates. Specific examples include sodium carbonate (with or without calcite seeds), potassium carbonate, sodium and potassium bicarbonates, sodium and potassium silicates, and zeolites.

When organic detergency builders are present, examples include alkali metal, ammonium and substituted ammonium polyacetates, carboxylates, polycarboxylates, polyacetyl carboxylates, carboxymethoxysuccinate, carboxymethoxypropane Diacid ester, ethylenediamine-N,N-disuccinate, polyethoxysuccinate, oxydiacetate, triethylenetetraminehexaacetate, N-alkylene Aminodiacetates or dipropionates, alpha sulfo-fatty acid salts, dipicolinic acid salts, oxidized polysaccharides, polyhydroxysulfonates, and various mixtures thereof.

Specific examples include sodium, potassium, lithium, ammonium and substituted ammonium salts of ethylenediaminetetraacetic acid, nitrile triacetic acid, oxydisuccinic acid, meltaric acid, benzene polycarboxylic acid and citric acid, Tartrate succinate and tartrate disuccinate.

The amount of detergency builder is generally 10-60% by weight of the total composition, preferably 20-50% by weight, more preferably 30-40% by weight.

In addition to the various ingredients already mentioned above, various optional minor ingredients may also be present in the compositions according to the invention, for example various foam boosters, such as alkanolamides, in particular derived from palm kernel fatty acids and monoethanolamides of coconut fatty acids, various fabric softeners such as clays, amines and amine oxides, various suds suppressors, various inorganic salts such as sodium sulfate, and optical brighteners, usually in considerable trace amounts , fragrances, various enzymes such as proteases, amylases and lipases, fungicides and dyes.

The compositions according to the invention can be prepared by conventional spray-drying or mixing methods. In any case, the various components sensitive to any process can be post-fed if desired.

The invention will be illustrated by the following examples. In all examples all percentages are by weight unless otherwise indicated. Example

Table 1

Basic preparation A B Na PAS(1) 9.30 - Na LAS(2) - 5.88 Nonionic 7 EO(3) 5.95 3.91 Non-ionic 3 EO(4) 3.97 2.94 soap 1.54 0.56 Zeolite A24 31.27 - STP - 22.29 Sodium citrate dihydrate 5.19 - Sodium Carbonate (Light) 1.85 - Sodium disilicate - 5.88 Sokalan CP5(9) - 1.06 Fluorescent Whitening Agent(5) 0.05 0.08 SCMC(6) 0.88 0.21 Sokalan HP22(7) - 0.21 remainder(11) 5.34 8.78 Subtotal Total Base Powder 65.33 51.88

The following various ingredients were added (over the side) to the product: EAG Optical Brightener Additives (8) 4.00 0.8 Sodium carbonate - 9.15 sodium bicarbonate 1.00 - sodium percarbonate 20.50 - Sodium borate tetrahydrate - 18.73 TAED particles 6.50 2.06 Dequest 2047 0.45 - EDDS(12) - different

(1) C ₁₂ -C ₁₄ primary alkyl sulfate sodium salt, anionic surfactant

(2) Sodium salt of C ₁₁ -C ₁₃ alkylbenzene sulfonate, anionic surfactant

(3) C ₁₂ -C ₁₅ fatty alcohol, ethoxylated with an average of 7 oxirane groups per molecule, nonionic surfactant

(4) C ₁₂ -C ₁₅ fatty alcohols, ethoxylated with an average of 3 oxirane groups per molecule, nonionic surfactants

(5) Tinopal CBS-X optical brightener from Ciba

(6) Sodium Carboxymethyl Cellulose

(7) Soil Release Polymers from BASF

(8) Silicone defoamer

(9) Soil Release Polymers from BASF

(10) Chelating agent from Monsanto

(11) Moisture, salt and unidentified organic matter

(12) Ethylene diaminodisuccinate

To each of base formulations A and B (100%) was added an additional 2.5% by weight of a single soil release enhancer. Add each of the following decontamination enhancers separately: Example Decontamination enhancer 1.  C12/C14 Dimethylaminopropyl Glucamide 2. Undecanoyl 4-hydroxyglucamide 3.  C12/C14N-Methyl Glucamide 4.  Hexadecanoyl N-methylglucamide 5.  Coconut N-Methyl Glucamide 6.  N-acetyl-N-dodecyl-1-amino-1-deoxy-D-sorbitol 7.  N-acetyl-N-tetradecyl-1-amino-1-deoxy-D-sorbitol 8. N-acetyl-N-hexadecyl-1-amino-1-deoxy-D-sorbitol 9.  N-propionyl-N-dodecyl-1-amino-1-deoxy-D-sorbitol 10.  N-propionyl-N-tetradecyl-1-amino-1-deoxy-D-sorbitol 11.  N-propionyl-N-hexadecyl-1-amino-1-deoxy-D-sorbitol 12.  Coconut aminopropyl D-glucamide 13.  Oleylaminopropyl D-glucamide 14.  C8/C10 oxypropyl D-glucamide 15.  Dodecyloxypropyl D-glucamide 16.  Dodecyl N-methylglucosylamide 17. Lauryl lactobionamide (lactobionamide) 18.  Coconut lactosamide 19. Oleyl lactosamide 20. Butter (hardened) lactosamide 21.  Dodecyloxypropyl D-lactosamide 22. Cetyl maltamide 23.  Coconut maltamide 24.  Dodecyloxazolidineacetamide 25. Tetradecyl oxazolidine acetamide 26. Tetradecenyl N-methyl D-glucosuccinamide 27. Decyl D-glucosuccinimide 28. Dodecenyl D-glucosuccinimide 29. Dodecenyl D-glucosuccinimide 30. Tetradecenyl D-glucosuccinimide

A concentration of 5 g/l was used for each product, and washing was carried out at 40°C for 30 minutes in a 3-liter glass beaker equipped with a heater unit and a magnetic stirrer. The water was 30.4°FH (Ca:Mg-4:1) artificially hardened water with additional transition metal elements to simulate actual washing conditions. Some LES was added to facilitate dissolution of the sugar-amino compound. This did not affect the bleaching results on the BC-1 test cloth.

In the case of product A the added metals were 2 ppm Fe and 2.3 ppm Zn. The bleaching result obtained on the BCl bleaching test cloth is expressed by CFT reflectance (△R) as: No country stain removal enhancer △R 460=8.0 Add the reinforcing agent of 2.01% embodiment 6 △R 460=9.9, 10.4

In the case of product B, the same metals were added as in A, but with the addition of 1.1 ppm Cu and 0.12 ppm Mn. Formulations containing three grades (0.20%, 0.40% and 1.19% by weight of the formulation) of EDDS as a stabilizer were washed. Experiments were performed with and without the 3% soil release enhancer of Example 1. The bleaching results are as follows: without glucosamide Using C12/C14 Glucamide 0.20% EDDS △R 460=6.5 △R 460=8.3 0.40% EDDS △R 460=6.9 △R 460=9.2 1.19% EDDS △R 460=6.5 △R 460=9.0

All modifications of the described embodiments, as well as other embodiments, which are within the scope of the invention as defined by the appended claims will be apparent to those skilled in the art from this disclosure.

Claims (7)

1. detergent powder compositions, it comprises:

Negatively charged ion and/or nonionogenic tenside;

SYNTHETIC OPTICAL WHITNER; With

Be selected from N-(optional replacement) acyl group-N-(C ₅-C ₃₁) the decontamination toughener of alkyl polyhydroxy amides, alkyl aldose acid amides (aldonamides), alkyl or alkenyl sugar succinimide (glycasuccinimides) and N-(optional replacement) aminoalkyl group polyhydroxy fatty acid amide.

2. according to the composition of claim 1, wherein the amount of decontamination toughener is the 0.1%-10% (weight) of total composition.

3. according to the composition of claim 1 or claim 2, wherein SYNTHETIC OPTICAL WHITNER comprises the combination of peracid or inorganic persalt and bleaching precursor, or has both concurrently.

4. according to the composition of claim 3, wherein the amount of inorganic persalt is the 6%-30% (weight) of total composition, and the amount of peracid or precursor is the 0.5%-10% (weight) of total composition.

5. according to the composition of claim 4, wherein the amount of inorganic persalt is the 10%-30% (weight) of total composition.

6. according to the composition of any aforementioned claim, wherein the amount of negatively charged ion and/or nonionogenic tenside is no more than 30% (weight) of total composition.

7. according to the composition of claim 6, wherein the amount of negatively charged ion and/or nonionogenic tenside is the 1%-20% (weight) of total composition.