MXPA00002548A - Bleaching compositions - Google Patents

Bleaching compositions

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Publication number
MXPA00002548A
MXPA00002548A MXPA/A/2000/002548A MXPA00002548A MXPA00002548A MX PA00002548 A MXPA00002548 A MX PA00002548A MX PA00002548 A MXPA00002548 A MX PA00002548A MX PA00002548 A MXPA00002548 A MX PA00002548A
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Mexico
Prior art keywords
avo
bleach
hydrophobic
acid
peracid
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MXPA/A/2000/002548A
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Spanish (es)
Inventor
Noureddine Guedira
Susan Judith Mason
Ludivine Pascale Marie Grippay
Donald Ray Brown
Michelle Frances Mellea
Original Assignee
Donald Ray Brown
Ludivine Pascale Marie Grippay
Noureddine Guedira
Susan Judith Mason
Michelle Frances Mellea
The Procter & Gamble Company
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Application filed by Donald Ray Brown, Ludivine Pascale Marie Grippay, Noureddine Guedira, Susan Judith Mason, Michelle Frances Mellea, The Procter & Gamble Company filed Critical Donald Ray Brown
Publication of MXPA00002548A publication Critical patent/MXPA00002548A/en

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Abstract

The present invention relates to granular detergent compositions and in particular low density, phosphate-containing detergent compositions, which comprise a specific bleaching system containing hydrophobic peracid bleach and hydrophilic peracid bleach and a peroxide source, having specific low levels of available oxygen from hydrophobic and hydrophilic peroxyacid bleach, specific ratios of available oxygen from the hydrophobic peracid bleach to the hydrophilic peracid bleach and specific ratios of available oxygen of the peroxide source to the available oxygen of the peracids. The invention also relates to the use of specific mixed bleach systems for sanitisation or reduction of the bacterial activity.

Description

BLEACHING COMPOSITIONS TECHNICAL FIELD The present invention relates to bleach-containing compositions, suitable for use in laundry washing methods.
BACKGROUND OF THE INVENTION In the past decades, efforts have been directed towards the development of bleaching systems, based on organic peroxyacids, which can provide effective removal of stains and / or dirt from fabrics at lower wash temperatures. Organic peroxyacids are often obtained by in situ perhydrolysis of organic peroxyacid bleach precursor compounds (bleach activators). A commonly used precursor compound is tetracetylethylenediamine (TAED) which provides effective hydrophilic cleaning especially on beverage soils. To achieve effective bleaching of a detergent, the hydrophobic and hydrophilic stains need to be bleached by the bleaching system. Additional organic peroxyacid precursors have therefore been developed to treat hydrophobic stains and soils. Several documents describe the use of mixtures of hydrophobic and hydrophilic whiteners in detergents, for example JP 7-238298, DE 196, 16,782, W094 / 28103. However, the inventors have discovered that most bleach compositions of the prior art do not always work satisfactorily when used under stress conditions, such as low wash temperature, wash with limited agitation, use of low amounts of active ingredients. detergents, very dirty fabrics, presence of high levels of metal ions, or after storage under humid or high temperature. These problems occur in particular in low density detergents, particularly when the total level of the bleach system in the detergent composition is low, and also in detergents that contain high levels of phosphate builder, which can introduce metal ions to the washed. Additionally, to achieve an efficient bleaching system, the system must provide excellent bleaching at low levels, thus minimizing the opportunity for damage to fabrics. Therefore, there is a need to provide detergent compositions comprising low levels of a bleach system, which has a very effective whitening performance under stress conditions, on hydrophobic spots and hydrophilic spots. The inventors have now surprisingly discovered that improved bleaching under stress conditions can be achieved by using a composition containing bleach containing a low level of activators of bleach and source of peroxide, that is to say that it has an available oxygen (AvO) derived from hydrophobic and hydrophilic bleach activators of less than 5000 ppm, and having a specific ratio of AvO of the hydrophobic activator to the AvO of the hydrophilic activator from 3: 1 to 1:50, and a specific ratio of the total AvO to the AvO of the activators, namely, more than 2: 1. The bleaching system has been found to be particularly useful in low density detergents, in hand-washing detergents, in phosphate-containing compositions, and also in washing processes where a low concentration of detergent is used. In general, the bleach and in particular the hypochlorite bleach is known to remove bacteria. High levels of bleach are usually required to provide a sufficient reduction of bacteria or to eliminate bacteria. Therefore, most detergents comprising whitening system known in the art, which only comprise low levels of bleach, are not effective as biocide agents for disinfection. The inventors have discovered that blended bleaching systems, comprising specific levels and ratios of hydrophobic, hydrophilic bleach additives and peroxide sources, are very useful as biocidal agents. They have discovered that even the use of low levels of specific bleaching compositions in washing solutions or in detergent or cleaning agents, provides effective disinfection of washed fabrics or surfaces, or effective reduction of bacteria when the bleaching components are used in the specific relationships, mentioned herein. All documents cited in the present description are, in relevant part, incorporated herein by reference.
BRIEF DESCRIPTION OF THE INVENTION The present invention relates to a detergent composition, having a density of 330 g / liter, comprising a bleach system containing a hydrophobic peracid bleach and a hydrophilic bleach or peracid bleach precursor and a peroxide source, characterized in that the level Total Available Oxygen of hydrophobic and hydrophilic peracid bleach or bleach precursors (AvO-a) is less than 5000 ppm, the Available Oxygen ratio of the hydrophobic peracid or precursor (AvO-hb) to the Available Oxygen of the hydrophilic peracid or precursor (AvO-hp) is from 3: 1 to 1: 50 and the ratio of Available Oxygen from the peroxide source (AvO-o) to AvO-a is at least 2: 1.
DETAILED DESCRIPTION OF THE INVENTION In the detergent compositions of the invention, the total available Oxygen level of hydrophobic and hydrophilic peracid bleach or bleach precursors (AvO-a) is less than 5000 ppm, or even less than 4000 ppm or even less than 3000 ppm or still less than 2500 ppm. The Available Oxygen ratio of the hydrophobic peracid or precursor (AvO-hb) to the Available Oxygen of the hydrophilic peracid or precursor (AvO-hp) is from 3: 1 to 1: 50, more preferably from 2.5: 1 to 1: 30, or still 2: 1 to 1: 20. The ratio of the Available Oxygen from the peroxide source (AvO-o) to the AvO-a is at least 2: 1, preferably at least 3: 1 or even 4: 1. The compositions preferably have a density of 370g / liter, or even 650g / liter or up to 600g / liter. It may be preferred that the composition be a low density granular composition, in particular phosphate-containing compositions and in particular high foaming compositions, soaking or pre-treatment compositions, and hand washing compositions. In this way, the invention also relates to a method of washing clothes by hand or pre-treating or rinsing clothes, in which a detergent composition according to the invention is used. The invention also relates to the use of bleaching compositions, comprising hydrophobic peracid bleach and hydrophilic or precursors thereof, and a source of peroxide for reduction of bacterial activity, in which the ratio of AvO-hb to AvO-hp is from 3: 1 to 1: 50, preferably 2.5: 1 to 1: 10 as up to 2: 1 to 1: 20 and in which the ratio of AvO-o to AvO-a is at least 2: 1, preferably at least 3: 1 or up to 4: 1. When used herein, "reduction of bacterial activity" includes the elimination of the bacterium or part thereof and inhibition of further growth or development of bacteria. Preferably the bleaching compositions are used for disinfecting the fabrics or surfaces, cleaning with the bleaching compositions. Therefore, it is preferred that the disinfection method includes contacting the fabrics or surfaces containing the bacteria, in particular present in spots on fabrics or surfaces, with the compositions. Therefore, the invention also encompasses a method for disinfecting fabrics in which the fabrics make contact with a composition or solution of a composition, comprising a hydrophobic and hydrophilic peracid bleach or precursor thereof and a source of peroxide , characterized in that the Available Oxygen ratio of the hydrophobic peracid or precursor (AvO-hb) to the Available Oxygen of the hydrophilic peracid or precursor '(AvO-hp) is from 3: 1 to 1: 50, and the ratio of the Available Oxygen of the peroxide source (AvO-o) at the total level of Available Oxygen of hydrophobic and hydrophilic peracid bleach (AvO-a) is at least 2: 1. Bleaching compositions are present preferably in cleaning compositions for cleaning fabrics or surfaces, preferably laundry detergents or dishwashing or hard surface cleaners. Laundry detergent compositions comprising the ingredients described herein are preferred. Preferably the level of AvO-a in the cleaning compositions or detergent compositions, or solutions thereof, which contain the bleaching composition and which are to be used to reduce the activity of bacteria, is up to 10,000 ppm, more preferably up to 5,000 ppm or up to 4,000 ppm, or even 3,000 ppm or 2,500 ppm. Hydrophobic and hydrophilic peracid bleaches or preferred precursors thereof and preferred peroxide sources are described below.
Hydrophobic and hydrophilic percents or peracid precursors An essential characteristic of the detergent compositions of the invention is a hydrophobic peracid or precursor thereof. The bleaching system preferably comprises a hydrophobic percarboxylic acid and / or precursor thereof, of the formula: R1-C03M In which R1 has at least 6 carbon atoms, and M is a countercation; or of the formula: R1-CO-L In which L is a residual group which is linked to the group R1-CO- with an oxygen atom, and R1 has at least 6 carbon atoms. Preferred residual groups are benzoic acid and derivatives thereof and especially benzene sulfonate. The percarboxylic acid bleach precursor are compounds that react with hydrogen peroxide in a perhydrolysis reaction to produce a percarboxylic acid. The counterion M of the percarboxylic acid is preferably sodium, potassium or hydrogen. Preferably said hydrophobic percents or precursors thereof are those whose original carboxylic acid has a critical micellar concentration of less than 0.5 moles / liter and in which said critical micellar concentration is measured in aqueous solution at 20 ° -50 ° C. The percarboxylic acid, preferably formed from the precursor, preferably contains at least 7 carbon atoms, or at least 8 or up to 9 carbon atoms, and it may be preferred that it contains from 7 to 12 carbon atoms, more preferably from 8 to 11 carbon atoms, more preferably from 9 to 10 carbon atoms. In a preferred aspect, the percarboxylic acid formed from the precursor or the peroxy acid has an alkyl chain comprising at least 7 carbon atoms, more preferably at least 8 carbon atoms, more preferably 9 carbon atoms. The percarboxylic acid precursor can be any ester which has been described as a bleach activator for use in laundry detergents, for example alkyl percarboxylic acid precursors described herein, sugar esters, such as pentaacetylglucose, imidic acid esters such as tricylcyanurates of ethylbenzimidate, such as triacetylcyanurate and tribenzoylcyanurate and esters yielding relatively active surface oxidation products for example C8-18 alkanoic or aralkanoic acids such as those described in GB-A-864798, GB-A-1147871 and the esters described in EP- A-98129 and EP-A-106634. Preferred are phenyl esters of alkanoic or alkenoic acids of C14-22, hydroxylamine esters, gemnic diesters of lower alkanoic acids and gem-idoles, such as those described in EP-A-0125781, especially 1, 1, 5- triacetoxipent-4-ene and 1, 1, 5,5-tetracetoxypentane and the corresponding butene and butane compounds, ethylidenebenzoate acetate and bis (ethylidene acetate) adipate and enol esters, for example as described in EP-A-0140648 and EP-A-0092932. Other highly preferred hydrophobic alkylpercarboxylic acid precursors include decanolioxybenzoic acid or salt thereof, sodium dodecanoyloxybenzensulfonate or potassium salt, sodium decanoyloxybenzensulfonate or potassium salt (DOBS), sodium benzoyloxybenzensulfonate or potassium salt (BOBS) ), most preferred 3,5,5-tri- Sodium or potassium methyl hexanoyloxybenzensulfonate (iso-NOBS) and even more preferred sodium or potassium nonanoyloxybenzene sulfonate (NOBS). The substituted amine bleach activator compounds may also be useful herein, such as those described in EP-A-0170386. Suitable examples of this class of agents include precursors or acids such as (6-exylamino) -6-oxocaproic acid, (6-octylamino) -6-oxocaproic acid, (6-nonylamino) -6-oxocaproic acid , (6-decyamino) -6-oxocaproic acid, monoperoxyphthalate magnesium exahydrate, the salt of meta-chloroperbenzoic acid, 4-nonylamino-4-oxoperoxybutyric acid and diperoxydecanedioic acid, or precursors thereof, in particular they have a residual benzensulfonate group. Said bleaching agents are described in the patents of E.U.A. Nos. 4,483,781, 4,634,551, EP 0,133,354, 4,412,934 and EP 0,170,386. Other suitable organic peroxyacids include diperoxyalkanedioic acid having more than 7 carbon atoms, such as diperoxydecanedioic acid (DPDA), diperoxytetradecanedioic acid and diperoxyhexadecanedioic acid. Mono- and diperazelaic acid, mono- and diperbrasyl acid and N-phthaloylaminoperoxycaproic acid (PAP), nonioylamido peroxo-adipic acid (NAPAA) and exanesulfenoyl peroxypropionic acid are also suitable herein. The compositions also comprise hydrophilic percents or precursors thereof, preferably of the formula: R1-C03M wherein R1 has at least 6 carbon atoms, and M is a countercation; or of the formula: R1-CO-L In which L is a residual group which is linked to the group R1-CO- with an oxygen atom, and R1 has at least 6 carbon atoms. A preferred hydrophilic precursor is TAED.
Peroxide source Inorganic perhydrate salts are a preferred source of peroxide. Preferably those salts are present at a level of 0.01% to 30% by weight, more preferably from 0.5% to 10%. Examples of inorganic perhydrate salts include perborate, percarbonate, perphosphate, persulfate and persilicate salts. The inorganic perhydrate salts are usually the alkali metal salts. The inorganic perhydrate salt can be included as the crystalline solid without additional protection. For certain perhydrate salts, however, the preferred embodiments of said granular compositions use a coated form of the material which provides better storage capacity for the perhydrate salt in the granular product. Suitable coatings include inorganic salts such as silicate metal salts alkali, carbonate or borate or mixtures thereof, or organic materials such as waxes, oils or fatty soaps. Sodium perborate is a preferred perhydrate salt and may be in the form of the monohydrate of the nominal formula NaB02H202 or the tetrahydrate NaB02H202 »3H20. The alkali metal percarbonates, particularly sodium percarbonate, are preferred perhydrates herein. Sodium percarbonate is an addition compound having a formula corresponding to 2Na2C? 3 »3H2? 2, and is commercially available as a crystalline solid. Potassium peroximonopersulfate is another inorganic perhydrate salt for use in the detergent compositions herein.
Additional detergent components The detergent compositions according to the invention may also contain additional detergent components. The precise nature of these additional components and the levels of incorporation thereof will depend on the physical form of the composition or component, and on the precise nature of the washing operation for which it is to be used. The compositions of the invention preferably contain one or more additional detergent components selected from additional surfactants, additional bleaches, bleach catalysts, alkalinity systems, builders, builders. of detergency containing phosphate, organic polymeric compounds, enzymes, suds suppressors, lime soap dispersants, suspending and anti-redeposition agents, dirt release agents, perfumes, brighteners, photobleaching agents and additional corrosion inhibitors.
Bleach Catalyst The compositions of the invention may contain a bleach catalyst containing a transition metal. A suitable type of bleach catalyst is a catalyst system comprising a transition metal cation of defined bleach catalytic activity, such as copper, iron or manganese cations, an auxiliary metal cation having little or no catalytic activity of bleaching, such as zinc or aluminum cations and a sequestrant having defined stability constants for the auxiliary metal and catalytic cations, particularly ethylenediaminetetraacetic acid, ethylenediaminetetra- (methylenephosphonic acid) and the water soluble salts thereof. Said catalysts are described in the U.S. patent. No. 4,430,243. Other types of bleach catalysts include the manganese-based complexes described in the U.S. patent. No. 5,246,621 and in the U.S. patent. No. 5,244,594. Preferred examples of these catalysts include Mn'V2 (u-0) 3 (1, 4,7-trimethyl-1,4-triazacyclononane) 2- (PF6) 2 > Mn '|| 2 (u-0) - | (u-0Ac) 2 (1, 4,7-trimethyl-1, 4,7-triazacyclononane) 2- (Cl 4) 2, Mn'V4 (U -?) 5 (1, 4,7-triazacyclononane) 4- (Cl? 4) 2, Mnl || nlV4 (u-0)? (u-0Ac) 2 (1, 4,7-trimethyl-1, 4,7-triazacyclononane) 2- (Cl 4) 3 and mixtures thereof. Others are described in European Patent Application Publication No. 549,272. Other ligands suitable for use herein include 1, 5,9-trimethyl-1, 5,9-triazacyclododecane, 2-methyl-1, 4,7-triazacyclononane, 2-methyl-1, 4,7-triazacyclononane, 1 , 2,4,7-tetramethyl-1,4,7-triazacyclononane and mixtures thereof. For examples of suitable bleach catalysts see the US patent. No. 4,246,612 and in the U.S. patent. No. 5,227,084. See also the patent of E.U.A. No. 5,194,416, which teaches mononuclear manganese (IV) complexes such as Mn (1, 4,7-trimethyl-1, 4,7-triazacyclononane) (OCH 3) 3 (PF 6). Yet another type of bleaching catalyst, such as that described in the U.S.A. No. 5,114,606 is a water soluble complex of manganese (III) and / or (IV) with a ligand that is a non-carboxylate polyhydroxy compound having at least three consecutive C-OH groups. Preferred ligands include sorbitol, iditol, dulsitol, mannitol, xylitol, arabitol, adonitol, meso-erythritol, meso-isonitol, lactose, and mixtures thereof. U.S. Patent No. 5,114,611 teaches a bleach catalyst comprising a complex of transition metals, including Mn, Co, Fe, or Cu, with a non- (macro) -cyclic ligand. These ligands are from the formula: R2 R3 -i i i ^ In which R1, R2, R3 and R4 can each be selected from H, substituted alkyl and aryl groups such that each R1-N = C-R2 and R3-C = N-R4 form a five or six member ring. Said ring can be replaced additionally. B is a bridging group selected from O, S, CR5R6, NR7 and C = 0, wherein R5, R6 and R7 may each be H, alkyl or aryl groups, including substituted or unsubstituted groups. Preferred ligands include pyridine, pyridazine, pyrimidine, pyrazine, imidazole, pyrazole, and triazole rings. Optionally, said rings can be substituted with substituents such as alkyl, aryl, alkoxy, halide, and nitro. The 2,2'-bispyridylamine ligand is particularly preferred. Preferred bleach catalysts include complexes of Co, Cu, Mn, Fe, -bispyridylmethane and -bispyridylamine. Highly preferred catalysts include Co (2,2'-bispyridylamine) CI2, Di (isothiocyanate) bismyriamlamine-cobalt (ll), trisdispyridylamine-cobalt perchlorate (II), Co (2,2'-bispyridyl) Na) 2? 2CI04, Bis- (2,2'-bispyridylamine) copper perchlorate (ll), iron tris (di-2-pyridylamine) perchlorate (ll), and mixtures thereof. Manganese bridge cyclama may be highly preferred, such as Mn dichloro cyclamate or Mn 1,4,8,11 tetra azacyclotetradecane. Other examples include binuclear Mn complexed with ligands of tetra-N-dentate and bi-N-dentate, including N4Mn '"(u-0) 2Mn'VN4) + and [Bipy2Mnlll (u-0) 2Mnlvbipy2] - (CI04) 3. Other bleach catalysts are described, for example, in European Patent Application No. 408,131 (Cobalt Complex Catalysts), European Patent Applications Publication Nos. 384,503 and 306,089 (Metalloporphyrin Catalysts), E.U.A. 4,728,455 (manganese / multidentate ligand catalyst), E.U.A. 4,711, 748 and European patent application Publication No. 224,952 (manganese catalyst absorbed on aluminosilicate), E.U.A. 4,601, 845 (aluminosilicate support with manganese and zinc or magnesium salt), E.U.A. 4,626,373 (manganese / ligand catalyst), E.U.A. 4,119,557 (ferric complex catalyst), German patent specification 2,054,019 (cobalt chelator catalyst), Canadian 866,191 (salts containing transition metals), E.U.A. 4,430,243 (chelators with manganese cations and non-catalytic metal cations) and E.U.A. 4,728,455 (manganese gluconate catalysts). Highly preferred may be the cobalt pentaamine acetate dichloride salt (III). The bleach catalyst is typically used in a catalytically effective amount in the compositions and methods herein. By "catalytically effective amount" is meant an amount which is sufficient, under any conditions of comparative tests used, to improve the bleaching and removal of the stain or spots of interest for the target substrate. The test conditions will vary, depending of the type of washing apparatus used and the habits of the user. Some users choose to use very hot water, others use warm water or even cold water in laundry operations. Of course, the catalytic performance of the bleach catalyst will be affected by such considerations, and the levels of bleach catalyst used in fully formulated detergent and whitening compositions can be adjusted appropriately. As a practical matter, and not by way of limitation, the compositions and methods of the present may be adjusted to provide on the order of at least one part per ten million of the active bleach catalyst species in the aqueous wash solution, and will preferably provide from 0.2 ppm to 200 ppm, preferably from 0.4 ppm to 100 ppm of the catalyst species in the wash liquor. To illustrate this point further, on the order of 3 micromolar manganese catalyst is effective at 40 ° C, pH of 10 under European conditions using perborate and a bleach precursor. An increase in concentration of 3 to 5 times may be required under conditions of E.U.A. to achieve the same results.
Surfactant The detergent compositions according to the invention preferably contain one or more surfactants selected from anionic, nonionic, cationic, ampholytic, amphoteric and zwitterionic surfactants, and mixtures thereof.
A typical list of anionic, nonionic, ampholitic and zwitterionic classes, and species of these surfactants, is given in the U.S. patent. No. 3,929,678, issued to Laughlin and Heuring on December 30, 1975. Additional examples are given in "Surface Active Agents and Detergents" (Vols. I and II, by Schwartz, Perry and Berch). A listing of suitable cationic surfactants is given in the U.S.A. No. 4,259,217, issued to Murphy on March 31, 1981. When present, ampholytic, amphoteric and zwitterionic surfactants are generally used in combination with one or more anionic and / or nonionic surfactants.
Anionic Surfactant The detergent compositions according to the present invention preferably comprise an additional anionic surfactant. Essentially any surfactant useful for detersive purposes may be comprised in the detergent composition. These may include salts (including, for example, sodium, potassium, ammonium and substituted ammonium salts such as mono-, di- and triethanolamine salts) of the anionic sulfate, sulfonate, carboxylate and sarcosinate surfactants. Anionic sulfate and sulfonate surfactants are preferred. The highly preferred surfactant systems are those comprising a sulphonate and sulfate surfactant, preferably a linear or branched alkylbenzene sulphonate and alkyl ethoxy sulfates, as described herein, preferably combined with cationic surfactants as described herein. Other anionic surfactants include the setionates such as the acyl isethionates, N-acyl taurates, methyl tauride fatty acid amides, alkyl succinates and sulfosuccinates, sulfosuccinate monoesters (especially saturated and unsaturated C12-C18 monoesters), sulfosuccinate diesters (especially saturated and unsaturated C6-C14 diesters), N-acyl sarcosinates. Resin acids and hydrogenated resin acids are also suitable, such as rosin, hydrogenated rosin and rosin acids, as well as hydrogenated rosin acids present in tallow oil or derivatives thereof.
Anionic Sulfate Surfactant The anionic sulfate surfactants suitable for use herein include the alkyl ether sulphates, fatty oleyl glycerol sulfates, alkyl phenol ethylene oxide ether sulfates, the C5-C- | 7-N- acyl glucamin sulfates (C-alkyl). -1-C4) and -N- (hydroxyalkyl of C-1-C2), and alkylpolysaccharide sulfates such as the alkylpolyglucoside sulfates (the non-sulphonated non-ionic compounds are described herein). The alkyl sulfate surfactants are preferably selected from the group consisting of the linear primary C 10 -C 18 alkyl sulfates and branched, more preferably the branched chain Cn-C15 alkyl sulphates and the C? 2-C- alkyl sulfates? of linear chain. The alkyl ethoxy sulfate surfactants are preferably selected from the group consisting of the alkyl sulfates of C- | o-C- | 8 that have been ethoxylated with 0.5 to 20 moles of ethylene oxide per molecule. More preferably, the alkylethylsulfate surfactant is an alkyl sulfate of Cj -jC-js, u and preferably of C1 1-C-15, which has been ethoxylated with from 0.5 to 7, preferably from 1 to 5 moles of ethylene oxide by molecule. A particularly preferred aspect of the invention employs mixtures of the preferred alkyl sulfate and alkyl ethoxylate surfactants. Such mixtures have been described in PCT application No. WO 93/18124.
Sulfonate Anionic Surfactant The sulfonic anionic surfactants suitable for use herein include salts of C5-C20 linear alkylbenzene sulphonates, alkyl ether sulfonates, primary or secondary C6-C22 alkan sulfonates, C6-C24 olefinsulfonates, sulfonated polycarboxylic acids, alkyl glycerol sulfonates. , fatty acyl glycerol sulfonates, fatty oleyl glycerol sulfonates and any mixtures thereof.
Carboxylate anionic surfactant The appropriate carboxylate anionic surfactants they include the alkyoxycarboxylates, the alkylpolyethoxy polycarboxylate surfactants and the soaps ("alkylcarboxyls"), especially certain secondary soaps as described herein. Suitable alkyleoxycarboxylates include those with the formula RO (CH2CH20) xCH2C00-M + where R is an alkyl group of CQ at C-i 8, x varies from 0 to 10, and the ethoxylate distribution is such that, on a weight basis, the amount of material in which x is 0 is less than 20% and M is a cation. Suitable alkylpolyethoxypolycarboxylate surfactants include those having the formula RO- (CHR-j-CHR2-0) -R3 wherein R is an alkyl group of CQ to C-JS, x is from 1 to 25, R- | and R 2 are selected from the group consisting of hydrogen, methyl acid radical, succinic acid radical, hydroxysuccinic acid radical and mixtures thereof, and R 3 is selected from the group consisting of hydrogen, substituted or unsubstituted hydrocarbon having from 1 and 8 carbon atoms, and mixtures thereof. Suitable soap surfactants include secondary soap surfactants that contain a carboxyl unit connected to a secondary carbon. Preferred secondary soap surfactants for use herein are the water soluble mes selected from the group consisting of the water soluble salts of 2-methyl-1-undecanoic acid, 2-ethyl-1-decanoic acid, 2-propyl-1-nonanoic acid, 2-butyl-1-octanoic acid and 2-pentyl-1-heptanoic acid. Certain soaps can also be included as suds suppressors.
Alkali metal sarcosinate surfactant agent Other suitable anionic surfactants are the alkali metal sarcosinates of the formula R-CON (R1) CH2COOM, in which R is a linear or branched C5-C-17 alkyl or alkenyl group, R'1 is a C-1-C4 alkyl group and M is an alkali metal ion. Preferred examples are myristyl or oleoyl methylsarcosinates in the form of their sodium salts.
Alkoxylated nonionic surfactant Essentially any alkoxylated nonionic surfactants are suitable herein. Ethoxylated and propoxylated nonionic surfactants are preferred. Preferred alkoxylated surfactants can be selected from the classes of the nonionic condensates of alkylphenols, non-ionic ethoxylated alcohols, ethoxylated / propoxylated nonionic fatty alcohols, ethoxylated / propoxylated non-ionic condensates with propylene glycol and the ethoxylated condensation products not Ions with propylene oxide / ethylenediamine adducts.
Nonionic surfactant of alkoxylated alcohol The condensation products of aliphatic alcohols with from 1 to 25 moles of alkylene oxide, particularly ethylene oxide and / or propylene oxide, are suitable for use herein. The alkyl chain of the aliphatic alcohol can be either straight or branched, primary or secondary, and it generally contains from 6 to 22 carbon atoms. Particularly preferred are the condensation products of alcohols having an alkyl group containing from 8 to 20 carbon atoms with from 2 to 10 moles of ethylene oxide per mole of alcohol.
Non-ionic surfactant of polyhydroxy fatty acid amide The polyhydroxy fatty acid amides suitable for use herein are those having the structural formula R2CONR1Z, wherein: R1 is H, C1-C4 hydrocarbyl, 2-hydroxyethyl, -hydroxypropyl, ethoxy, propoxy, or a mixture thereof, preferably C 1 -C 4 alkyl, most preferably C 1 -C 2 alkyl, more preferably C 1 alkyl; (ie, methyl); and R2 is a C5-C3-1 hydrocarbyl, preferably straight chain Cs-Cg alkyl or alkenyl, most preferably straight chain C9-C17 alkyl or alkenyl, more preferably Cj alkyl or alkenyl -jC -J7 straight chain or a mixture thereof, and Z is a polyhydroxyhydrocarbyl having a linear hydrocarbyl chain with at least 3 hydroxyls directly connected to the chain, or an alkoxylated derivative (preferably ethoxylated or propoxylated) thereof. Z will preferably be derived from a reducing sugar in a reductive amination reaction; most preferably Z is a glycityl.
Nonionic Fatty Acid Amide Surfactant Suitable fatty acid amide surfactants include those having the formula: R6CON (R7) 2 wherein R is an alkyl group containing from 7 to 21, preferably from 9 to 17 atoms of carbon and each R ^ is selected from the group consisting of hydrogen, CJ-C4 alkyl, hydroxyalkyl of CJ-C4, and - (C2H4?) xH, where x is on the scale of 1 to 3.
Nonionic surfactant of algilpolysaccharide Suitable alkyl polysaccharides which are used herein are described in the U.S. patent. No. 4,565,647, Filling, issued January 21, 1986, having a hydrophobic group containing from 6 to 30 carbon atoms, and a polysaccharide, for example, a polyglycoside, a hydrophilic group containing from 1.3 to 10 units of saccharide. Preferred alkyl polyglycosides have the formula R20 (CnH2nO) t (glycosyl) x wherein R2 is selected from the group consisting of alkyl, alkylphenyl, hydroxyalkyl, hydroxyalkylphenyl, and mixtures thereof, in which the alkyl groups contain from 10 to 18 carbon atoms; n is 2 or 3; t is from 0 to 10, and x is from 1.3 to 8. The glucosyl is preferably derived from glucose.
Amphoteric Surfactant Amphoteric surfactants suitable for use herein include the amine oxide surfactants and the alkylamphocarboxylic acids. Suitable amine oxides include those compounds having the formula R3 (OR4) xN ° (R5) 2, wherein R ^ is selected from an alkyl, hydroxyalkyl, acylamidopropyl and alkylphenyl group or mixtures thereof, which contains to 26 carbon atoms; R ^ is an alkylene or hydroxyalkylene group containing 2 to 3 carbon atoms, or mixtures thereof; x is from 0 to 5, preferably from 0 to 3; and each R 5 is an alkyl or hydroxyalkyl group containing from 1 to 3 carbon atoms, or a group of polyethylene oxide containing from 1 to 3 ethylene oxide groups. The alkyl dimethylamine oxide of C- \ Q-C < \ Q and acylamidodimethylamine oxide of C-io-C-id- A suitable example of an alkylamphodicarboxylic acid is Miranol (MR) C2M Conc., Manufactured by Miranol, Inc., Dayton, NJ.
Zwitterionic Surfactant Zwitterionic surfactants can also be incorporated into the detergent compositions according to the invention.
These surfactants can be broadly described as derivatives of secondary and tertiary amines, derivatives of heterocyclic secondary and tertiary amines or derivatives of quaternary ammonium compounds, Quaternary phosphonium or tertiary sulfonium. The surfactants of sultaine and betaine are examples of zwitterionic surfactants that can be used herein. Suitable betaines are those compounds having the formula: R (R ') 2N + R2COO- in which R is a hydrocarbyl group of CQ-C ^ Q, each R1 is typically C1-C3 alkyl, and R2 is a C-1-C5 hydrocarbyl group. The preferred betaines are the dimethyl ammonium hexanoate betaines of C-j2-C-8 and the acylamidopropane (or ethane) dimethyl (or diethyl) betaines of C-jo-Ci8- Also suitable for use herein are Betaine surfactants in complex.
Cationic Surfactants Cationic surfactants suitable for use in the detergent herein include the quaternary ammonium surfactants. Preferably the quaternary ammonium surfactant is a mono-N-C6-C16 alkyl, preferably N-alkyl or C6-C10 alkenyl ammonium surfactant in which the remaining N positions are substituted by methyl, hydroxyethyl or hydroxypropyl groups. The mono-alkoxylated and bis-alkoxylated amine surfactants are also preferred. Another suitable group of cationic surfactants that can be used in detergent compositions or components thereof in the present are the cationic ester surfactants. The cationic ester surfactant is a compound preferably dispersible in water, having surfactant properties and comprising at least one ester linkage (ie, -COO-) and at least one cationically charged group. Preferred cationic ester surfactants are water dispersible. Suitable cationic ester surfactants, including choline ester surfactants, have been described, for example, in US Patents. Nos. 422,8042, 4239660 and 4260529. In a preferred aspect the ester linkage and the cationically charged group are separated from each other in the surfactant molecule by a spacer group consisting of a chain comprising at least three atoms (ie said chain length of three atoms), preferably three to eight atoms, most preferably three to five atoms, more preferably three atoms. The atoms forming the chain of the spacer group are selected from the group consisting of carbon, nitrogen and oxygen atoms, and any mixtures thereof, with the proviso that no nitrogen or oxygen atom in said chain connects only with the atoms of carbon in the chain. In this way, groups which have, for example, -OO- (ie, peroxide), -NN- and -NO- bonds are excluded, but include the spacer groups having, for example, -CH2-O bonds -CH2- and -CH2-NH-CH2. In a preferred aspect, the chain of the spacer group comprises only carbon atoms, most preferably the chain is a hydrocarbyl chain.
Mono-alkoxylated cationic amine surfactants Mono-alkoxylated amine cationic surfactants are highly preferred herein, preferably of the general formula: Wherein R1 is an alkyl or alkenyl portion containing from 6 to 18 carbon atoms, preferably from 6 to 16 carbon atoms, more preferably from 6 to 14 carbon atoms; R2 and R3 are each independently alkyl groups containing from one to three carbon atoms, preferably methyl, more preferably both R2 and R3 are methyl groups; R 4 is selected from hydrogen (preferred), methyl and ethyl; X "is an anion such as chlorine, bromine, methylisulfate, sulfate, or the like, to provide electrical neutrality, A is an alkoxy group, especially an ethoxy, propoxy or butoxy group, and p is from 0 to 30, preferably from 2 to 15, more preferably from 2 to 8. Preferably ApR4 is a hydroxyalkyl group, having no more than 6 carbon atoms in which the -OH group is separated from the Quaternary ammonium nitrogen atom for not more than 3 carbon atoms. Particularly preferred ApR4 groups are -CH2CH2OH, -CH2CH2CH2OH, -CH2CH (CH3) OH and -CH (CH3) CH2OH, with -CH2CH2OH being particularly preferred. Preferred R1 groups are linear alkyl groups. Linear R1 groups having from 8 to 14 carbon atoms are preferred. Other highly preferred cationic mono-alkoxylated amine surfactants for use herein are of the formula: Wherein R 1 is C 10 -C 8 hydrocarbyl and mixtures thereof, especially C 1 or C 4 alkyl, preferably C 1 and C 2 alkyl, and X is any convenient anion to provide charge balance , preferably chlorine or bromine. As noted, compounds of the type mentioned above include those in which the (CH2CH20) ethoxy units (EO) are replaced by butoxy, isopropoxy [CH (CH3) CH20] and units [CH2CH (CH30] (i-Pr) or n-propoxy (Pr) units, or mixtures of EO and / or units Pr and / or ¡-Pr. The levels of cationic mono-alkoxylated amine surfactants used in the detergent compositions of the invention are preferably from 0.1% to 20%, more preferably from 0.2% to 7%, more preferably from 0.3% to 3.0% by weight of the composition.
Cationic bis-alkoxylated amine cationic surfactant The cationic bis-alkoxylated amine surfactant preferably has the general formula II: (ll) Wherein R1 is an alkyl or alkenyl portion containing from 8 to 18 carbon atoms, preferably from 10 to 16 carbon atoms, more preferably from 10 to 14 carbon atoms; R2 is an alkyl group containing one to three carbon atoms, preferably methyl; R3 and R4 can vary independently and are selected from hydrogen (preferred), methyl and ethyl; X "is an anion such as chlorine, bromine, methylisulfate, sulfate, or the like, sufficient to provide electrical neutrality, A and A 'can vary independently and each is selected from C? -C4 alkoxy, especially ethoxy, (i.e. CH2CH20-), propoxy, butoxy and mixtures thereof, p is from 1 to 30, preferably from 1 to 4 and q is from 1 to 30, preferably from 1 to 4, and more preferably p and q are 1. Cationic surfactants of highly preferred bis-alkoxylated amine for use herein are of the formula: Wherein R1 is C0-C18 hydrocarbyl and mixtures thereof, preferably C-? 0 alkyl, C- | 2, C1 and mixtures thereof. X is any convenient anion to provide charge balance, preferably chlorine. With reference to the general structure of the bis-alkoxylated cationic amine noted above, because in a preferred compound R1 is derived from (coconut) C-? 2-C? 4 alkyl groups of fatty acids, R2 is methyl and ApR3 and A'qR4 are each monoethoxy. Other cationic bis-alkoxylated amine surfactants useful herein include compounds of the formula: Wherein R 1 is C 1 or C 18 hydrocarbyl, preferably C 1 -C 6 alkyl, independently p is 1 to 3 and q is 1 to 3, R 2 is C 1 -C 3 alkyl, preferably methyl, and X is an anion, especially chlorine or bromine. Other compounds of the above type include those in which the (CH2CH20) ethoxy (EO) units are replaced by butoxy (Bu), isopropoxy [CH (CH3) CH20] and units [CH2CH (CH30] (-Pr) or units n-propoxy (Pr), or mixtures of EO and / or Pr and / or i-Pr units.
Water-soluble detergent-enhancing compound The detergent compositions according to the present invention preferably contain a water-soluble builder compound, typically present in detergent compositions at a level of from 1% to 80% by weight, preferably from 10% to 60% by weight. % by weight, more preferably from 15% to 40% by weight of the composition. The detergent compositions of the invention preferably comprise phosphate-containing builder material. Preferably present at a level of 0.5% to 60%, more preferably from 5% to 50%, more preferably from 8% to 40%. The phosphate-containing builder preferably comprises tetrasodium pyrophosphate or even more preferably anhydrous sodium tripolyphosphate. Suitable water-soluble builder compounds include water-soluble monomeric polycarboxylates or their acid forms, homo- or copolymeric polycarboxylic acids or their salts, in which the polycarboxylic acid comprises at least two carboxylic radicals separated from one another by no more than two carbon atoms, borates, and mixtures of any of the foregoing. The carboxylate or polycarboxylate builder may be of the monomeric or oligomeric type, although they generally prefer monomeric polycarboxylates for reasons of cost and performance. Suitable carboxylates containing a carboxy group include the water soluble salts of lactic acid, glycolic acid and ether derivatives thereof. Polycarboxylates containing two carboxy groups include the water-soluble salts of succinic acid, malonic acid, (ethylenedioxy) diacetic acid, maleic acid, diglycolic acid, tartaric acid, tartronic acid and fumaric acid, as well as ether carboxylates and sulfinyl carboxylates . Polycarboxylates or their acids containing three carboxy groups include, in particular, citrates, aconitrates and water-soluble citraconates, as well as the succinate derivatives such as the carboxymethyloxysuccinates described in British Patent No. 1, 379,241, the lactoxysuccinates described in British Patent No. 1, 389,732 and the aminosuccinates described in the Dutch application 7205873 and the oxypolycarboxylate materials such as 2-oxa-1,1,1-propanedicarboxylates described in British Patent No. 1, 387,447. The most preferred polycarboxylic acid containing three carboxy groups is citric acid, preferably present at a level of 0.1% to 15%, more preferably 0.5% to 8% by weight of the composition. The polycarboxylates containing four carboxy groups include the oxydisuccinates described in British Patent No. 1, 261, 829, 1, 1, 2,2-etantetracarboxylates, 1,1, 3,3-propanetracarboxylates and the 1, 1, 2, 3-propanetracarboxylates. Polycarboxylates containing sulfo substituents they include the sulfosuccinate derivatives described in the British patents Nos. 1,398,421 and 1,398,422 and the patent of E.U.A. No. 3,936,448 and the sulfonated pyrolysed citrates described in British Patent No. 1, 439,000. Preferred polycarboxylates are hydrocarboxylates containing up to three carboxy groups per molecule, most particularly citrates. The acids of origin of monomeric or oligomeric polycarboxylate chelating agents or mixtures thereof with their salts, eg, mixtures of citric acid or citrate / citric acid are also contemplated as useful builders components. Borate builders, as well as detergency builders containing borate-forming materials that can produce borate under detergent storage conditions or under washing conditions are water soluble builders useful herein. Suitable examples of phosphate builders are alkali metal tripolyphosphates, sodium, potassium and ammonium pyrophosphate, potassium and sodium ammonium pyrophosphate, potassium and sodium orthophosphate, and sodium polymetaphosphate, in which the degree of polymerization varies from about 6 to 21, and the salts of phytic acid. Partially soluble or insoluble builder compound The detergent compositions according to the present invention may contain a builder compound partially soluble or insoluble, typically present in detergent compositions at a level of from 0.5% to 60% by weight, preferably from 5% to 50% by weight, more preferably from 8% to 40% by weight of the composition. Examples of detergents largely soluble in water include sodium aluminosilicates. Suitable aluminosilicate zeolites have the unit cell formula Naz [(Al? 2) z (Si? 2) and] -xH2? in which z and y are integers of at least 6; the molar ratio of zay is from 1.0 to 0.5 and x is at least 5, preferably from 7.5 to 276, more preferably from 10 to 264. The aluminosilicate material is in hydrated form and is preferably crystalline, containing from 10% to 28%. %, most preferably from 18% to 22% water in bound form. The aluminosilicate zeolites may be materials that occur naturally, but are preferably derived in synthetic form. Synthetic crystalline aluminosilicate ion exchange materials are available under the designations Zeolite A, Zeolite B, Zeolite X, Zeolite HS and mixtures thereof. Zeolite A has the formula: Na-j 2 [(Al? 2)? 2 (Yes ° 2) l 2--? 2 ° in which x is from 20 to 30, especially 27. Zeolite X has the formula: Na86 [(AI02) 86 (Si? 2) i 06J-276H2O.
Another aluminosilicate zeolite that is preferred is the detergency of zeolite MAP. The zeolite MAP can be present at a level of 1% to 80%, most preferably 15% to 40% by weight of the compositions. Zeolite MAP is described in EP 384070A (Unilever). It is defined as an alkali metal aluminosilicate of the zeolite P type having a silicon to aluminum ratio of not more than 1.33, preferably within the range of 0.9 to 1.33 and more preferably within the range of 0.9 to 1.2. Of particular interest is zeolite MAP which has a silicon to aluminum ratio no greater than 1.15, more particularly not greater than 1.07. In a preferred aspect, the zeolite builder MAP has a particle size, expressed as a dso value of 1.0 to . 0 microns, most preferably from 2.0 to 7.0 microns, more preferably from 2. 5 to 5.0 microns. The dso value indicates that 50% by weight of the particles have a diameter smaller than that number. The particle size can be determined in particular by conventional analytical techniques such as microscopic determination using a scanning electron microscope or by means of a laser granulometer. Other methods to establish the dso values are described in EP 384070A.
Heavy metal ion sequestrant The compositions of the invention preferably contain a heavy metal ion sequestrant as an optional component. By heavy metal ion sequestrant herein it means components that act to sequester (chelate) heavy metal ions. These components may also have calcium and magnesium chelating ability, but preferably show selectivity for binding heavy metal such as iron, manganese and copper. Heavy metal sequestrants are generally present at a level of 0.005% to 10%, preferably from 0.1% to 5%, more preferably from 0.25% to 7.5% and more preferably from 0.3% to 2% by weight of the compositions or components. Heavy metal ion sequestrants suitable for use herein include organic phosphonates, such as the aminoalkylene poly (alkylene phosphonates), alkali metal n-1-hydroxy diphosphonates, and nitrilotrimethylene phosphonates. Preferred among the above species are diethylenetriaminepenta (methylene phosphonate), ethylenediaminetri- (methylene phosphonate), hexamethylenediaminetetra (methylene phosphonate) and hydroxyethylene 1,1-diphosphonate, 1,1-hydroxyethoediphosphonic acid and 1,1-hydroxyethanedimethylene phosphonic acid. Another heavy metal ion sequestrant suitable for use herein includes nitrilotriacetic acid and polyaminocarboxylic acids such as ethylenediaminetetraacetic acid, ethylenediamine disuccinic acid, acid ethylenediamine digiutharic acid, 2-hydroxypropylenediamine disuccinic acid or any salt thereof. Other heavy metal ion sequestrants suitable for use herein are iminodiacetic acid derivatives such as 2-hydroxyethyl diacetic acid or glyceryl imino diacetic acid, described in EP-A-317,542 and EP-A-399, 133. Sequestrants of iminodiacetic acid-N-2-hydroxypropyl sulfonic acid and of aspartic acid-N-carboxymethyl N-2-hydroxypropyl-3-suphonic acid described in EP-A-516,102 are also suitable herein. The scavengers of ß-alanine-N-diacetic acid, aspartic acid-N, N'-diacetic acid, aspartic acid-N-monoacetic acid and iminodisuccinic acid described in EP-A-509,382 are also suitable. EP-A-476,257 describes suitable amino-based sequestrants, EP-A-510,331 describes suitable sequestrants derived from collagen, keratin or casein. EP-A-528,859 describes a suitable kidnapping of alkyl iminodiacetic acid. Also suitable are dipicolinic acid and 2-phosphonobutan-1,2,4-tricarboxylic acid. Glycinamide-N-N'-disuccinic acid (GADS), ethylenediamine-N-N'-diglutaric acid (EDDG) and 2-hydroxypropylenediamine-N-N-disuccinic acid (HPDDS) are also suitable. Especially preferred are diethylenetriaminepentaacetic acid, ethylenediamine-N'-disuccinic acid (EDDS), 1,1-hydroxyethanediphosphonic acid, and acid. 1, 1-hydroxyethane-phosphonic acid or the alkali metal, alkaline earth metal, ammonium or substituted ammonium salts thereof, or mixtures thereof. the same.
Enzymes Another preferred ingredient useful in detergent compositions is one or more additional enzymes. Additional preferred enzyme materials include commercially available lipases, cutinases, amylases, neutral and alkaline proteases, cellulases, endolases, esterases, pectinases, lactases and peroxidases incorporated in conventional manner in detergent compositions. Suitable enzymes are discussed in U.S. Patent Nos. 3,519,570 and 3,533,139. Enzymes Protease Preferred commercially available include those sold under the tradenames Alcalase, Savinase, Primase, Durazym, and Esperase by Novo Industries A / S (Denmark), those sold under the tradenames Maxatase, Maxacal and Maxapem by Gist-Brocades, those sold by Genencor International, and those sold under the trade names Opticlean and Optimase by Solvay Enzimes. The protease enzyme may be incorporated in the compositions according to the invention at a level of 0.0001% to 4% active enzyme by weight of the composition. Preferred amylases include, for example, α-amylases obtained from a special strain of B. licheniformis, described in more detail in GB-1, 269,839 (Novo). The commercially available amylases Preferred include, for example, those sold under the trade names Rapidase by Gist-Brocades, and those sold under the trade names Termamyl, Duramyl and BAN by Novo Industries A / S. Highly preferred amylase enzymes may be those described in PCT / US 970365, and in W095 / 26397 and W096 / 23873. The amylase enzyme can be incorporated in the composition according to the invention at a level of 0.0001% to 2% active enzyme by weight of the composition. The lipolytic enzyme may be present at levels of 0.0001% to 2% active lipolytic enzyme by weight, preferably from 0.001% to 1% by weight, more preferably from 0.001% to 0.05% by weight of the compositions. The lipase can be fungal or bacterial in origin, being obtained, for example, from a strain producing lipase Humicola sp., Thermomvces sp. or Pseudomonas sp. including Pseudomonas pseudoalcaligenes or Pseudomas fluorescens. Lipase from mutants chemically or genetically modified from those strains are also useful herein. A preferred lipase is derived from Pseudomonas pseudoalcaligenes, which is described in European patent EP-B-0218272. Another preferred lipase herein is obtained by cloning the gene from Humicola lanuginosa and expressing the gene in Aspergillus oryza, as host, as described in European patent application EP-A-0 258 068, which is commercially available from Novo Industri ACE, Bagsvaerd, Denmark, under the trade name Lipolase. This lipase is also described in U.S. Patent No. 4,810,414, Huge-Jensen et al, March 7, 1989.
Organic Polymeric Compound Organic polymeric compounds are preferred additional components of the detergent compositions, and are preferably present as components of any particulate components, where they can act such as to bind the particulate component together. By organic polymeric compound is trying to say herein essentially any polymeric organic compound commonly used as dispersants and agents antiredeposition and suspension of soils in detergent compositions, including any of the organic polymeric compounds of high molecular weight described as flocculating agents clay herein, including agent (poly) ethoxylated amine cuatemizada clay soil removal / antiredeposition according to the invention .. organic polymeric compound is typically incorporated in the detergent compositions of the invention at a level of 0.1% to 30%, preferably from 0.1% to 15%, more preferably from 0.5% to 10% by weight of the compositions. Examples of organic polymeric compounds include organic homo- or copolymeric polycarboxylic acids soluble in water or their salts in which the polycarboxylic acid comprises at least two carboxyl radicals separated from each other by not more than two carbon atoms. Polymers of the latter type are described GB-A-1, 596,756. Examples of such salts are polyacrylates of MW 1000-5000 and their copolymers with maleic anhydride, said copolymers have a molecular weight of 2000 to 100,000, especially 40,000 to 80,000. Polyamino compounds are useful herein, including those derived from aspartic acid such as those described in EP-A-305282, EP-A-305283 and EP-A-351629. Also suitable herein are terpolymers containing selected monomeric units of maleic acid, acrylic acid, polyaspartic acid and vinyl alcohol, particularly those having an average molecular weight of 5,000 to 10,000. Other organic polymeric compounds suitable for incorporation into the detergent compositions herein include cellulose derivatives such as methylcellulose, carboxymethylcellulose, hydroxypropylmethylcellulose and hydroxyethylcellulose. Additional useful organic polymeric compounds are polyethylene glycols, particularly those with a molecular weight of 1000-10000, more particularly 2000 to 8000 and more preferably around 4000. The highly preferred polymeric components herein are cotton soil release polymers and do not cotton according to U.S. Patent No. 4,968,451, Scheibel et al, and U.S. Patent No. 5,415,807, Gosselink et al, and in particular according to the application of E. U. A. No. 60/051517. Another organic compound, which is a preferred dispersing / anti-redeposition clay agent for use herein, may be the ethoxylated cationic diamines and monoamines of the formula: Wherein X is a nonionic group selected from the group consisting of H, C1-C4 alkyl or hydroxyalkyl ester or alkyl groups, and mixtures thereof, a is from 0 to 20, pref. From 0 to 4 (eg ethylene) , propylene, hexamethylene), b is 1 or 0; for cationic monoamines (b = 0), n is at least 16, with a typical scale of 20 to 35; for cationic diamines (b = 1), n is at least about 12 with a typical scale of about 12 to about 42. Other dispersing / anti-rejection agents for use herein are described in EP-B-011965 and E.U.A 4,659,802 and E.U.A. 4,664,848.
Foam suppression system The detergent compositions of the invention, when formulations for use in machine wash compositions, may comprise a foam suppression system present at a level of from 0.01% to 15%, preferably from 0.02% to 10%, more preferably from 0.05% to 3% by weight of the composition. The foam suppression systems suitable for use herein may comprise essentially any known antifoam compound, including, for example, silicone anti-foam compounds and 2-alkyl alkanol antifoaming compounds. By "antifoam compound" is meant herein any compound or mixtures of compounds which act to depress the foaming or foaming produced by a solution of a detergent composition, particularly in the presence of the agitation of that solution. Particularly preferred antifoam compounds for use herein are the silicone anti-foam compounds defined herein as any antifoaming compound that includes a silicone component. Said silicone anti-foam compounds also typically contain a silica component. The term "silicone", as used herein and generally in the industry, encompasses a variety of relatively high molecular weight polymers that contain siloxane units and hydrocarbyl groups of various types. Preferred antifoam silicone compounds are siloxanes, particularly polydimethylsiloxanes having trimethylsilyl end blocking units.
Other suitable antifoam compounds include the monocarboxylic fatty acids and the soluble salts thereof. These materials are described in the U.S. patent. No. 2,954,347, issued September 27, 1960 to Wayne St. John. The monocarboxylic fatty acids and salts thereof for use as foam suppressors typically have hydrocarbyl chains of 10 to 24 carbon atoms, preferably 12 to 18 carbon atoms. Suitable salts include the alkali metal salts such as the sodium, potassium and lithium salts, and the ammonium and alkanolammonium salts. Other suitable antifoam compounds include, for example, high molecular weight fatty esters (eg, fatty acid triglycerides), fatty acid esters of monovalent alcohols, aliphatic C18-C40 ketones (eg, stearone), amino triazines N- alkylated such as tri- or hexa-alkylmelamines or di- to tetra-alkyldiamin-chlorothriazines formed as cyanuric chloride products with two or three moles of a primary or secondary amine containing 1 to 24 carbon atoms, propylene oxide, bis stearic acid amide and the di-alkali metal monostearyl phosphates (eg, sodium, potassium, lithium) and phosphate esters. A preferred foam suppressor system comprises: (a) an antifoam compound, preferably a silicone antifoam compound, most preferably a silicone antifoam compound comprising in combination: (i) polydimethylsiloxane, at a level of 50% to 99%, preferably 75% to 95% by weight of the silicone antifoam compound; and (ii) silica, at a level of 1% to 50%, preferably 5% to 25% by weight of the silicone / silica antifoam compound; wherein said silica / silicone antifoam compound is incorporated at a level of 5% to 50%, preferably 10% to 40% by weight; (b) a dispersing compound, most preferably comprising a glycol silicone hardener copolymer having a polyoxyalkylene content of 72-78% and a ratio of ethylene oxide to propylene oxide of from 1: 0.9 to 1: 1.1, 0.5% to 10% level, preferably 1% to 10% by weight; a particularly preferred glycol silicone hardener copolymer of this type is DC0544, commercially available from DOW Corning under the tradename DC0544; (c) an inert carrier fluid compound, most preferably comprising an ethoxylated C-J6-C-18 alcohol with an ethoxylation degree of 5 to 50, preferably 8 to 15, at a level of 5% to 80%, preferably 10% to 70% by weight; A highly preferred particulate foam suppression system is described in EP-A-0210731 and comprises a silicone antifoam compound and an organic carrier material having a melting point in the range of 50 ° C to 85 ° C, wherein The organic carrier material comprises a monoester of glycerol and a fatty acid having a carbon chain containing from 12 to 20 carbon atoms. EP-A-0210721 discloses other particulate foam suppressor systems Preferred in which the organic carrier material is a fatty acid or alcohol having a carbon chain containing from 12 to 20 carbon atoms or a mixture thereof, with a melting point of 45 ° C to 80 ° C. Other highly preferred foam suppression systems comprise polydimethylsiloxane or mixtures of silicone, such as polydimethylsiloxane, aluminosilicate and carboxylic polymers, such as copolymers of laic acid and acrylic acid.
Polymeric Dye Transfer Inhibition Agents The detergent compositions herein may also contain from 0.01% to 10%, preferably from 0.05% to 0.5% by weight, of dye transfer inhibiting polyimic agents. The polymeric dye transfer inhibiting agents are preferably selected from polyamine N-oxide polymers, copolymers of N-vinylpyrrolidone and N-vinylimidazole. Polyvinylpyrrolidone polymers or combinations thereof, in which those polymers can be entangled polymers.
Optical brightener The detergent compositions herein also optionally contain from about 0.005% to 5% by weight of certain types of hydrophilic optical brighteners. The hydrophilic optical brighteners useful in the present include those that have the structural formula: wherein R-j is selected from anilino, N-2-bis-hydroxyethyl and NH-2-hydroxyethyl; R 2 is selected from N-2-bis-hydroxyethyl, N-2-hydroxyethyl-N-methylamino, morphino, chloro and amino; and M is a salt-forming cation such as sodium or potassium. When in the above formula R- \ is anilino, R2 is N-2-bis-hydroxyethyl and M is a cation such as sodium, the brightener is 4,4'-bis ^ -anilino-e-ÍN ^ -bis- Hydroxyethyl-S-triazin-amino-2-stybenedisulfonic acid and disodium salt. This particular brightener species is marketed under the trade name Tinopal UNPA-GX by Ciba-Geigy Corporation. The Tinopal UNPA-GX is the preferred hydrophilic optical brightener useful in the detergent compositions herein. When in the above formula Rj is anilino, R2 is N-2-hydroxyethyl-N-2-methylamino and M is a cation such as sodium, the brightener is the disodium salt of 4,4'-bis [(4-anilino -6- (N-2-hydroxyethyl-N-methylamino) -s-triazn-2-yl) amino] -2,2'-stilbenedisulfonic acid. This particular brightener species is marketed under the trade name Tinopal 5BM-GX by Ciba-Geigy Corporation.
When in the previous formula R- | is aniline, R2 is morphine and M is a cation like sodium, the brightener is the sodium salt of 4,4'-bis [(4-anilino-6-morphino-s-triazin-2-yl) amino] ] 2,2'-stybenedisulfonic. This particular type of brightener is scommercially under the trade name Tinopal DMS-X and Tinopal AMS-GX by Ciba-Geigy Corporation.
Polymeric dirt-releasing agent Polymeric soil release agents known, hereinafter "SRA", can optionally be used in the present detergent compositions. If used, the SRA's will generally comprise from about 0.01% to 10.0%, typically from about 0.1% to 5%, preferably from about 0.2% to 3.0% by weight, of the compositions. Preferred SRA's typically have hydrophilic segments to hydrophilize the surface of the hydrophobic fibers such as polyester and nylon, and hydrophobic segments to deposit on and remain adhered to the hydrophobic fibers through the completion of the washing and rinsing cycles, thus serving as an anchor for the hydrophilic segments. This can make it possible for stains that occur after treatment with the SRA to be cleansed more easily in subsequent washing procedures. Preferred SRA's include oligomeric terephthalate esters, typically prepared by methods that include at least one transesterification / oligomerization, commonly with a metal catalyst such as a titanium (IV) alkoxide. Said esters can be manufactured using additional monomers capable of being incorporated into the ester structure through uan, two, three, four or more positions, without, of course, forming a densely intertwined overall structure. Suitable SRA's include a sulphonated product of a substantially linear ester oligomer formed from an oligomeric ester base structure of terephthaloyl and oxyalkylenoxy repeating units and sulfonated terminal portions derived from allyl covalently bonded to the base structure, for example, as described in the US patent 4,968,451, November 6, 1990 by J. J. Scheibel and E.P. Gosselink. Said ester oligomers can be prepared: (a) ethoxylating aulic alcohol; (b) reacting the product of (a) with dimethyl terephthalate ("DMT") and 1,2-propylene glycol ("PG") in a two step transesterification / oligomerization process; and (c) reacting the product of (b) with sodium metabisulfite in water. Other SRAs include polyesters of 1, 2-propylene / polyoxyethylene terephthalate of non-ionic blocked ends of the U.S. patent. No. 4,71 1, 730, of December 8, 1987 to Gosselink and others, for example those produced by the transesterification / oligomerization of polyethylene glycol methyl ether, DMT, PG and polyethylene glycol ("PEG"). Other examples of SRAs include: oligomeric esters of partially blocked anionic ends and completely from the patent of E.U.A. No. 4,721, 580, from January 26, 1988 to Gosselink, such as oligomers of ethylene glycol ("EG"), PG, DMT and Na-3,6-dioxa-8-hydroxyoctansulfonate; the non-ionic blocked block polyester oligomeric compounds of the U.S.A. 4,702,857, from October 27, 1987 to Gosselink, for example produced from DMT, PEG and EG and / or PG (Me) -blocked methyl or a combination of DMT, EG and / or PG, PEG Me-blocked and Na-dimethyl-5-sulfoisophthalate; and the blocked terephthalate esters of the anionic ends, especially of sulfoaroyl of the U.S. patent. No. 4,877,896 of October 31, 1989 to Maldonado Gosseiink et al., The latter being a typical SRA's useful in both fabric conditioning and laundry products, one example being an ester composition made from the monosodium salt of the acid m- sulfobenzoic, PG and DMT, optionally but preferably further comprising added PEG, eg, PEG 3400. SRA's also include: simple copolymer blocks of ethylene terephthalate or propylene terephthalate with polyethylene oxide terephthalate or polypropylene oxide, see US patent No. 3,959,230 to Hays of May 25, 1976 and the patent of E.U. No. 3,893,929 to Basadur, July 8, 1975, cellulosic derivatives such as the cellulosic hydroxyether polymers available as METHOCEL from Dow; the C-1-C4 alkyl celluloses and C4 hydroxyalkylcells of the U.S. patent.
No. 4,000,093, of December 28, 1976 to Nicol, et al., And the methyl cellulosic esters having an average degree of substitution (methyl) by anhydroglucose unit of from about 1.6 to about 2.3 and a solution viscosity of from about 80 to about 120 centipoises measured at 20 ° C as a 2% aqueous solution. Such materials are available as METOLOSE SM100 and METOLOSE SM200, which are the commercial brands of the methylcellulose ethers manufactured by Shin-etsu Kagaku Kogyo KK. Additional classes of SRA's include: (I) non-ionic terephthalates using diisocyanate coupling agents to link the polymeric ester structures, see E.U. 4,201, 824, Violland et al. And E.U. 4,240,918 Lagasse et al., And (II) SRA's with carboxylate end groups made by adding trimethyl anhydride to known SRA's to convert terminal hydroxyl groups to trimethylate esters. With the proper selection of the catalyst, trimethyl anhydride forms bonds to the polymer terminals through a carboxylic acid ester isolated from the trimethyl anhydride instead of opening the anhydride linkage. Both non-ionic or anionic SRAs can be used as starting materials, as long as they have hydroxyl end groups that can be esterified, see E.U. No. 4,525,524 Tung and others. Other classes include (lll) non-anionic terephthalate-based SRAs of the urethane-linked variety, see E.U. 4,201, 824, Violland et al .; Other Optional Ingredients Other optional ingredients suitable for inclusion in the compositions of the invention include perfumes, colors and filler salts, with sodium sulfate being a preferred filler salt. Highly preferred may be the inclusion of particles removes spots. The next particle removes stains is a particle removes stains preferred: particles of sodium carbonate, which have 75% of particles that have a particle size of 600 to 850 microns and 25% of particles that have a particle size of 425 to 600 Microns are obtained by agglomerating and sieving sodium carbonate powder. The particles obtained in this way are sprayed with Monastral BV blue paste solution and subsequently dried, obtaining particles that remove spots comprising approximately 1000 ppm of dye. Highly preferred compositions contain from 2% to 10% by weight of an organic acid, preferably citric acid. further, preferably combined with a carbonate salt, minor amounts (for example less than 20% by weight) of neutralizing agents, pH regulating agents, phase regulators, hydrotropes, enzyme stabilizing agents, polyacids, foaming regulators, opacifiers, anti-oxidants, bactericides and colorants, such as those described in US Patent No. 4,285,841 to Barral et al, August 25, 1981 (incorporated herein by reference) may be present.
Form of the compositions The detergent composition of the invention can be manufactured by a variety of methods, including dry blending and agglomeration and / or spray drying the different compounds contained in the detergent component. The composition according to the invention can take a variety of physical forms including liquid and solid forms such as tablets, flakes, bars and bars, and preferably granulated form. The compositions according to the present invention can also be used in or in combination with whitening additive compositions, for example comprising chlorine bleach.
Chlorine-based bleach The detergent compositions may include as an additional component a chlorine-based bleach. However, because the preferred detergent compositions of the invention are solid, most chlorine-based liquid bleaches will not be suitable for these detergent compositions and only chlorine-based or granular bleaches will be suitable. Alternatively, the detergent compositions can be formulated in such a way that they are compatible with chlorine-based bleach, thereby ensuring that a chlorine-based bleach can be added to the detergent composition by the user at the start or during the washing procedure. Those based on chlorine bleach in such a way that a hypochlorite species is formed in aqueous solution. The amount of hypochlorite is represented chemically by the formula OCI '. Those bleaching agents that yield a hypochlorite species in aqueous solution include alkali metal and alkali metal hypochlorites, hypochlorite addition products, chloramines, chlorimines, chloramides, and chlorimides. Specific examples of compounds of this type include sodium hypochlorite, potassium hypochlorite, calcium monobasic hypochlorite, dibasic magnesium hypochlorite, chlorinated trisodium phosphate dodecahydrate, potassium dichloroisocyanurate, sodium dichloroisocyanurate dihydrate, trichlorocyanuric acid, 1,3-dichloro- 5,5-dimethylhydantoin, N-chlorosulfamide, Chloramine T, Dicloramine T, chloramine B, and dichloramine B. A preferred bleaching agent for use in the compositions of the instant invention is sodium hypochlorite, potassium hypochlorite or mixtures thereof . A preferred chlorine-based bleach may be Triclosan (tradename). The majority of the hypochlorite-yielding bleaching agents described above are available in solid or concentrated form and are dissolved in water during the preparation of the instant compositions of the invention. Some of the above materials are available as aqueous solutions. The average particle size of the components of the The granular composition according to the invention should preferably be such that no more than 25% of the particles are larger than 1.8mm in diameter and no more than 25% of the particles are less than 0.25mm in diameter. Preferably the average particle size is such that 10% to 50% of the particles have a particle size of 0.2mm to 0.7mm in diameter. The term "average particle size" as defined herein is calculated by sieving a sample of the composition in a number of fractions (typically 5 fractions) over a series of sieves, preferably Tyier sieves. The fractions by weight obtained are therefore plotted against the opening size of the sieves. The average particle size is taken to be the size of the aperture through which 50% by weight of the sample would pass.
Machine laundry method The machine laundry methods herein typically comprise treating laundry with an aqueous wash solution in a washing machine having an effective amount of a laundry detergent composition dissolved or filled therein. of machine clothes according to the invention. For an effective amount of a detergent composition means from 10g to 300g of dissolved product osurtido in a volume wash solution of 5 to 65 liters, as are the typical product dosages and volumes of wash solution commonly used in conventional machine washing methods. In a preferred use aspect the detergent composition is formulated such that it is suitable for hand washing. In another preferred aspect the detergent composition is a pre-treatment or rinse composition, to be used for pre-treating or rinsing them dirty or stained. Abbreviations used and Examples In detergent compositions, abbreviated component identifications have the following meanings: LAS: C-j linear sodium alkylbenzenesulfonate -] _ 13 TAS: Sodium alkyl sulfate CxyAS: Sodium alkylsulfate of C-? XC- | and C46SAS: Sodium alkylsulfate of secondary C14-C16 (2.3) CxyEzS: Sodium alkyl sulfate of C- | xC-j and condensed with z moles of oxide of ethylene CxyEz: A primary alcohol of C ^ -C ^ and predominantly linear condensed with an average of z moles of ethylene oxide QAS R2.N + (CH3) 2 (C2H OH) with R2 = C12-C14 QAS 1: R2.N + (CH3) 2 (C2H4OH) R2 = C8-C11 SADS: C14-C22 sodium alkyldisulfate of formula 2- (R) .C4H7.-1, 4- (S04-) 2 wherein R = C? 0-C? 8 SADE2S: C14-C22 sodium alkyldisulfate of formula 2- (R) .C4H7.-1, 4- (S04-) 2 where R = C? 0-C18 condensed with z moles of ethylene oxide MES: x-sulfomethyl ester of C? 8 fatty acid APA: amidopropyl dimethylamine of C8-C? Or soap: linear sodium alkylcarboxylate derived from a mixture of 80/20 fatty acids of tallow and coconut STS sodium toluensulfonate CFAA: N-methylglucamide of (coconut) C-12-C14 alkyl TFAA: C- | 6-C- | 8 alkyl N-methylglucamide TPKFA: C-I6-C-I8 crowned whole chopped fatty acids STPP: Tripol! Anhydrous sodium phosphate TSPP: Tetrasodium pyrophosphate Zeolite A: Hydrated sodium aluminosilicate of the formula Na- | 2 (A1? 2Si? 2) i2- 27H2O, which has a primary particle size on the scale of 0.1 to 10 microns (weight expressed on an anhydrous base).
NaSKS-6: Crystalline layered silicate of the formula d- Na2Si2? 5 Citric acid: Anhydrous citric acid Borate: Sodium borate Carbonate: Anhydrous sodium carbonate with a particle size between 200μm and 900μm Bicarbonate: Anhydrous sodium bicarbonate with a particle size distribution of between 400μm and 1200μm Silicate: Amorphous sodium silicate (S? 2: Na2? = 2.0: 1) Sulfate: Anhydrous sodium sulfate Mg sulfate: Anhydrous magnesium sulfate Citrate: Trisodium citrate dihydrate of 86.4% activity with a particle size distribution of between 425μm and 850μm MA / AA: Copolymer of maleic acid / acid 1: 4 Acrylic with an average molecular weight of approximately 70,000 MA / AA (1): Copolymer of maleic acid / Acrylic acid 4: 6, average molecular weight of approximately 10,000 AA: Sodium polyacrylate polymer with average molecular weight of 4,500 CMC: Sodium carboxymethylcellulose Cellulose ether: Methylcellulose ether with a degree of polymerization of 650 available from Shin Etsu Chemicals Protease: Proteolytic enzyme having 3.3% by weight of active enzyme , sold by Novo Industries A / S under the trade name Savinase Protease 1: Proteolytic enzyme having 4% by weight of active enzyme, as described in WO 95/10591, sold by Genencor Int. Inc. Alcalase: Proteolytic enzyme having 5.3% by weight of active enzyme, sold by Novo Industries A / S Cellulase: Cellulite enzyme having 0.23% active enzyme sold by Novo Industries A / S under the trade name Carezyme Amylase: Amiolitic enzyme having 1.6% by weight of enzyme active sold by Novo Industries A / S under the trade name Termamyl 120T Amylase II: Amylolytic enzyme, as described in PCT / US9703635 Lipase: Lipolytic enzyme having 2.0% active enzyme sold by Novo Industries A / S under the trade name Lipolase Lipase (1): Lipolytic enzyme having 2.0% active enzyme sold by Novo Industries A / S under the trade name Lipolasa Ultra Endolasa: Enzyme endoglunase, which has 1.5% by weight of active enzyme sold by Novo Industries A / S PB4: Sodium perborate tetrahydrate of nominal formula NaBO2.3H2O.H2O2 PB1: Anhydrous sodium perborate bleach of nominal formula NaB? 2-H2? 2 Percarbonate : Sodium percarbonate of nominal formula 2Na2C? 3.3H2? 2 DOBS: Decanoyl oxybenzene sulfonate in the form of sodium salt DPDA: Diperoxydecanedioic acid NOBS: Nonanoyloxybenzenesulfonate in the form of Sodium salt NACA-OBS: (6-nonamidocaproyl) oxybenzene sulfonate LOBS: Dodecanoyloxybenzene sulfonate in the form of sodium salt DOBS: Decanoiloxybenzene sulphonate in the form of sodium salt DOBA: Decanoyl oxybenzoic acid TAED: Tetraacetylethylenediamine DTPA: Diethylenetriaminepentaacetic acid DTPMP: Diethylenetriaminepenta (methylenephosphonate) marketed by Monsanto under the trade name Dequest 2060 EDDS: Isomer (S, S) of ethylenediamine-N, N'-disuccinic acid in the form of its sodium salt. Photoactivated: sulfonated zinc phthalocyanine encapsulated in bleaching polymer (1) soluble in dextrin Photoactivated: Aluminosulfonated phthalocyanine encapsulated in bleaching polymer (2) soluble in dextrin Brightener 1: 4,4'-bis (2-sulfoestirl) bifenyl disodium Brightener 2: 4,4'-bis (4-anilino-6-morpholino-1,3,5-triazin-2-yl) amino) disodium stilben-2: 2'-disulfonate HEDP: 1, 1-hydroxydanediphosphonic acid HEDMP: 1, 1-hydroxy ethanedimethylene phosphonic acid PEGx: Polyethylene glycol with a molecular weight of x (typically 4,000) PEO: Polyethylene oxide with an average molecular weight of 50,000 TEPAE: Ethoxylated tetraethylene pentaamine PVI: Polyvinylimidazole, with an average molecular weight of 20,000 PVP: Polyvinylpyrrolidone polymer with an average molecular weight of 60,000 PVNO: Polyvinylpyridine N-oxide polymer, with an average molecular weight of 50,000 PVPVI: Polyvinylpyrrolidone copolymer and vinylimidazole, with an average molecular weight of 20,000 QEA: bs ((C2H50) (C2H40) n) (CH3) -N + -C6H12-N + - (CH3) bis ((C2H50) - (C2H 0)) n, in which n = from 20 to 30 SRP 1: Polysers of anionically blocked ends SRP 2: Poly (1, 2-propylene terephthalate) dietoxylated short block polymer PEI: Polyethylenimine with an average molecular weight of 1800 and an average degree of ethoxylation of 7 ethyleneoxy residues per nitrogen. Silicone antifoams: Polydimethylsiloxane foam controller with a siloxane-oxyalkylene copolymer as a dispersing agent with a ratio of said foam controller to said dispersing agent from 10: 1 to 100: 1. Opacifier: Mix of water-based monostyrene latex, sold by BASF Aktiengesellshaft under the trade name Lytron 621 Wax: Paraffin wax Particle removes Particle removes stains as described in stains: present on page 52 In the following examples, all levels are cited as% by weight of the composition: EXAMPLE 1 The following detergent formulations are according to the invention.
EXAMPLE 2 The following detergent compositions are according to the invention.
EXAMPLE 3 The following granular detergent formulations are according to the invention.
EXAMPLE 4 The following compositions are pre-treatment compositions according to the invention.
EXAMPLE 5 1. - Dirt release polymer according to the patent of E.U.A. No. 5,415,807, Gosselink, Pan, Kellett and Hall, May 6, 1995. 2.- Dirt release polymer according to the application of E.U.A. No. 60/051517.
EXAMPLE 6 1. - Dirt release polymer according to U.S. Patent No. 4,968,451, Scheibel et al, November 6, 1990. 2.- Non-cotton dirt release polymer according to the application of E.U.A. No. 60/051517.

Claims (11)

NOVELTY OF THE INVENTION CLAIMS
1. - A detergent composition, which has a density of 330g / liter, comprising a bleach system containing a hydrophilic peracid bleach and a hydrophobic or precursor thereof and a peroxide source, characterized in that the total available oxygen level of the hydrophilic peracid bleach and the hydrophobic bleach (AvO-a ) is less than 5000 ppm by weight of the composition, the ratio of the available oxygen of the hydrophobic peracid or precursor (AvO-hb) to the available oxygen of the hydrophilic peracid or precursor (AvO-hp) is from 3: 1 to 1:50 and the ratio of the oxygen available from the peroxide source (AvO-o) to AvO-a is at least 2: 1.
2. A detergent composition according to claim 1, further characterized in that the hydrophilic bleach precursor comprises TAED.
3. A detergent composition according to claim 2, further characterized in that the hydrophobic peracid or precursor comprises a hydrophobic group which is derived from fatty acid, comprising at least 8 carbon atoms, preferably a precursor having a residual group of oxybenzenesulfonate. 4.- A detergent composition in accordance with any of the preceding claims, further characterized in that the ratio of AvO-o to AvO-a is at least 3: 1, more preferably at least 4: 1. 5. A detergent composition according to claim 1 or 2, comprising a phosphate detergent builder. 6. A detergent composition according to any of the preceding claims, further characterized in that the bleach of the peroxide source comprises one or more inorganic salts of perhydrate, preferably a salt of perborate or carbonate. 7. A detergent composition according to any of the preceding claims comprising one or more enzymes, preferably at least one amylase enzyme. 8. A hand washing method characterized in that a detergent composition is used according to any of the preceding claims. 9. A method of pre-treatment or soaking of laundry with a detergent composition according to any of the preceding claims. 10. The use of a bleaching composition for reducing the activity of bacteria, characterized in that the composition comprises a hydrophilic peracid bleach and a hydrophobic or precursor thereof and a source of peroxide, characterized in that the ratio of the available oxygen of the hydrophobic peracid or precursor (AvO-hb) to the available oxygen of the hydrophilic peracid or precursor (AvO-hp) is from 3: 1 to 1: 50 and the 0 ratio of available oxygen from the peroxide source (AvO-o) to the total available oxygen level of the hydrophilic and hydrophobic peracid bleach (AvO-a) is at least 2: 1, the bleaching agent preferably being present in a detergent composition , preferably at a level at which the AvO-a is less than 10,000 ppm or up to 5,000 ppm. 11. The method for disinfecting fabrics further characterized in that the fabrics are contacted with a composition or a solution of a composition, comprising a bleach of hydrophilic peracid and a hydrophobic or precursors thereof and a source of peroxide, characterized also because the ratio of the available oxygen of the hydrophobic peracid or precursor (AvO-hb) to the available oxygen of the hydrophilic peracid or precursor (AvO-hp) is 3: 1 to 1: 50 and the available oxygen ratio of the peroxide source (AvO-o) at the total available oxygen level of the hydrophilic and hydrophobic peracid bleach (AvO-a) is at least 2: 1.
MXPA/A/2000/002548A 1997-09-11 2000-03-13 Bleaching compositions MXPA00002548A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9719235.5 1997-09-11
GB9719231.4 1997-09-11

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MXPA00002548A true MXPA00002548A (en) 2001-06-26

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