KR100209999B1 - Cleansing compositions - Google Patents

Abstract

A denture cleaning composition comprising an inorganic peracid bleach, a boiling generator, and an aminoalkylsilicone. The composition provides improved antiplaque, cleansing and antimicrobial activity in addition to good physical and in-use performance activity.

Description

Cleaning composition {CLEANSING COMPOSITIONS}

Effervescent tablets and powders for cleaning such as dentures are known in the art. The purpose of denture cleaner products is to wipe dentures as completely and quickly as possible, especially to remove accumulations of plaque, mucus and bacterial waste that are collected during denture. Wearing dentures for which plaque and bacterial waste has not been completely removed is not only hygienic, but may also have a detrimental effect on the mucous membranes in a short time. Bacterial waste can also lead to the so-called bacterial erosion of plastic materials used to make dentures with continuous discoloration and malodor formation.

It is known that the liquid dentifrice composition includes silicone and assertively coats the teeth to prevent tooth decay and pigmentation. By way of example, GB-A-689,679 discloses gargling medicines containing organopolysiloxanes to prevent or remove the attachment of tars, colorings, tartars and food debris from teeth.

US-A-2,806,814 discloses dental preparations comprising the combination of a higher aliphatic acyl amide of an amino carboxylic acid and a silicone compound as an active agent. The patent teaches that silicone compounds have been proposed to facilitate the prevention or removal of tar, contaminants, tar tar, and the like from the teeth. Silicone compounds are said to act as synergists in improving the antibacterial and acid inhibitory activity of the active ingredient. Dimethyl polysiloxane is said to be particularly effective.

US-A-3624120 discloses quaternary ammonium salts of cyclic siloxane polymers for use as cationic surfactants, fungicides and anti-carticides.

Originally dentures are made of plastic material such as acrylic, so the problem of preventing or removing plaque accumulation from dentures is fundamentally different from the problem of preventing and removing plaque from dentures.

The present invention thus provides an oral composition having improved efficacy against plaque, mucus bacterial waste, while at the same time having excellent cleaning performance, physical properties and meltability and performance characteristics in use.

Summary of the invention

According to a first aspect of the present invention, there is provided a denture cleaning composition containing aminoalkylsilicone as an inorganic peracid bleach, a boiling generator and an antiplaque agent. The invention also relates to the use of aminoalkylsilicones defined as antiplaque agents in denture cleaning compositions.

All percentages and ratios herein are by weight of total composition unless otherwise indicated.

Thus, the cleaning composition of the present invention comprises three essential components bleach, aminoalkylsilicone and boiling base composition. Describe each in turn.

Bleaches take the form of inorganic persulfates and from any of the known bleaches for denture cleaners such as alkali metals and ammonium persulfates, perborates, percarbonates and perphosphates and alkali metals and alkaline earth metal peroxides. Can be selected. Examples of suitable bleaches include potassium, ammonium, sodium and lithium persulfate and perborate mono- and tetrahydrates, sodium pipeophosphate peroxyhydrate and magnesium, calcium, strontium and zinc peroxide. Among the above, alkali metal persulfate, perborate and mixtures thereof are preferred for use herein, with alkali metal perborate being particularly preferred. In fact, the tablet compositions of the present invention provide good antibacterial activity even in the absence of alkali metal persulfate.

The amount of bleach in the total composition is generally about 5 to about 70%, preferably about 10 to about 50%. The total persulfate: perborate ratio in the composition comprising a mixture of alkali metal persulfate and perborate is suitably 5: 1 to 1: 5, more particularly 2: 1 to 1: 2.

The composition here also comprises an aminoalkylsilicone antiplaque agent. In general terms, aminoalkylsilicones are selected from acyclic, hydrophobic aminoalkylsilicones comprising the following two basic units:

1) (R ¹ ) _m (R) _n SiO _{(4-mn) / 2} (wherein m + n is 1, 2 or 3, n is 1,2 or 3 and m is 0, 1, 2) );

2) (R ¹ ) _a (R ² ) _ｂ SiO _{(4-ab) / 2} (wherein a + b is 1, 2 or 3 and a and b are integers);

[Wherein R ¹ and R ² are each selected from H and alkyl and alkenyl having about 1 to about 10 carbon atoms optionally substituted with fluoro or cyano group, hydroxy, alkyl group and acetoxy, for example R ¹ and R ² are each selected from methyl, ethyl, phenyl, vinyl, trifluoropropyl and cyanopropyl, and R is

Wherein R ³ is a divalent alkylene having about 1-20, preferably about 3-5, carbon atoms optionally substituted or interrupted with an oxygen atom, and R ⁴ , R ⁵ and R ⁶ , which are the same or different from each other, Is selected from alkyl groups having about 1-20, preferably 1-10, more preferably about 1-4 carbon atoms, optionally substituted or interrupted with H, nitrogen and / or oxygen atoms, X ^- is halide, hydroxy and Monoalkyl anion such as tosylate, wherein the aminoalkylsilicone is about 60% or less, preferably about 0.1-30%, more preferably about 2-10%, particularly about 0.5-2%, based on the repeating unit (1)).

Preferably, in the embodiment, the aminoalkylsilicone comprises amodimethicone. Amodimethicone is a polydimethylsiloxane polymer comprising aminoalkyl groups. The aminoalkyl group can be hung or present at one or more ends of the polydimethylsiloxane chain. Wherein the aminoalkyl moiety R is (CH ₂ ) ₃ NH ₂ (CH ₂ ) ₃ NHCH ₂ CH ₂ NH ₂ , (CH ₂ ) ₃ N (CH ₂ CH ₂ OH) ₂ , (CH ₂ ) ₃ NH ₃ ⁺ X ⁻ And amino selected from (CH ₂ ) ₃ N (CH ₃ ) ₂ (C ₁₈ H ₃₇ ) ⁺ X ^_ , in particular from (CH ₂ ) ₃ NH ₂ and (CH ₂ ) ₃ NHCH ₂ CH ₂ NH ₂ , Alkylsilicon is preferred. Also preferred are aminoalkylsilicones having an average molecular weight of at least about 5,000, preferably from about 5000 to about 100,000, more preferably from about 5000 to about 30,000.

Suitable aminoalkylsilicon compounds for use herein are known. Methods of preparing aminoalkylsilicones are described, for example, in US Pat. No. 2,930,809.

Examples of amodimethicones include DC-929, DC-Q2-7224 and Q2-8075 from Dow Corning and OSI's Magnasoft fluids, with the latter being preferred. These polymers include aminoalkyl groups attached to the prevailing polydimethylsiloxane structure. The representative structure of the unit containing the aminoalkyl group of Magnasoft is -OSi (Me) -C ₃ H ₆ NHCH ₂ CH ₂ NH ₂ .

Aminoalkylsilicon is usually present at a level of about 0.01% to about 25%, preferably about 0.1% to about 5%, more preferably about 0.5% to about 1.5% (weight%).

The denture cleaning composition may also incorporate a boiling generator in the form of a solid base material which, in the presence of water, releases carbon dioxide or oxygen with boiling. Boiling generators may be selected from effective generators under acidic, neutral or alkaline pH conditions, but preferably they are effective or most effective under acidic or neutral pH conditions and those which are effective or most effective under alkaline pH conditions. It consists of a combination. Boiling agents effective under acidic or neutral pH conditions include one or more alkali metals such as sodium bicarbonate, sodium carbonate, sodium sesquicarbonate, potassium carbonate, potassium bicarbonate, or mixtures thereof Carbonate or bicarbonate and one or more nontoxic, physiologically acceptable organic acids, such as tartaric acid, fumaric acid, citric acid, malic acid, maleic acid, gluconic acid, succinic acid, salicylic acid, adipic acid or sulfamic acid, sodium Combinations with one or more nontoxic physiologically acceptable organic acids such as fumarate, sodium or potassium acid phosphate, betaine hydrochloride or mixtures thereof. Among them, malic acid is preferred. Boiling generators effective under alkaline pH conditions include perborate, persulfate, percarbonate, perphosphonate, and mixtures thereof, as described previously, such as monopersulfate, potassium sulfate and potassium bissulphate: EI du Point de Nemours Co., which is a 1: 1 mixture and has an active oxygen content of about 4.5%. Mixtures of alkali metal perborate (anhydrous, mono- or tetrahydrate) with monopersulfate, such as Caroat ^{R manufactured} by Co., Ltd.

In highly preferred compositions, the solid base material incorporates (non) carbonate / acid boiling couples optionally mixed with perborate / persulfate oxygen boiling generators. Mixing of the generator is valuable to implement pH conditions for optimal dissolution properties and optimal cleaning and antimicrobial activity. The (non) carbonate component generally comprises from about 5% to about 65%, preferably from about 25% to 55% of the total composition; The acid composition generally comprises about 5% to about 50%, preferably about 10% to about 30% of the total composition.

The composition of the present invention may be implemented by other known components of the denture cleaning formulation. A particularly preferred additional component is an organic peroxy acid precursor, which term can generally be defined as a compound having an appropriate amount of at least 1.5 ml of 0.1 N sodium thiosulfate in the following peracid preparation test.

Test solutions are prepared by dissolving the following materials in 1000 ml distilled water:

Sodium pyrophosphate

_{(Na 4 P 2 O 7 ·} 10H 2 O) 2.5 g

Having 10.4% soluble oxygen

Sodium perborate

(NaBO ₂ H ₂ O ₂ 3H ₂ O) 0.615 g

Sodium dodecylbenzene

0.5 g of sulfonate

An amount of activator is added to this solution at 60 ° C. so that one molecule of activator is introduced for each atom of useful oxygen present.

The mixture obtained by the addition of the active agent is stirred vigorously and maintained at 60 ° C. After 5 minutes of addition, 100 ml part of the solution was collected and immediately weighed into a mixture of 250 g of broken ice and 15 ml of glacial acetic acid, and the free iodine was immediately added to 0.1 N sodium thiosulfate with starch as an indicator. Titrate. The amount of sodium thiosulfate solution used in ml is the appropriate amount of the bleach activator.

Organic peracid precursors are typically compounds comprising one or more acyl groups that can be perhydrolyzed. Preferred active agents are those of the N-acyl or O-acyl compound type comprising an acyl radical R-CO, wherein R is a hydrocarbon, or preferably a substituted hydrocarbon group having from about 1 to about 20 carbon atoms. Examples of suitable peracid precursors include:

1) Acyl organoamide of the formula RCONR ₁ R ₂ as disclosed in US-A-3,117,148, wherein R ₁ is an acyl radical and R ₂ is an organic radical. Examples of the compound included in the group are shown below.

a) N, N-diacetylaniline and N-acetylphthalimide;

b) N-acylhydantoin, for example N, N'-diacetyl-5,5-dimethylhydantoin;

c) polyacetylated alkylene diamines as disclosed in GB-A-907,356, GB-A-907,357 and GB-A-907,358, for example N, N, N, N'-tetraacetylethylenediamine (TAED) and the corresponding Hexamethylenediamine (TAHD) derivatives.

d) acetylated glycolurils as disclosed in GB-A-1,246,338, GB-A-1,246,339 and GB-A-1,247,429, for example tetraacetylglycouril.

2) Acetylated sulfonamides as disclosed in GB-A-3,183,266, for example N-methyl-N-benzoyl-methane sulfonamide and N-phenyl-N-acetyl methane sulfonamide.

3) Carboxylic esters as disclosed in GB-A-836,988, GB-A-963,135 and GB-A-1,147,871. Examples of compounds of this type include phenyl acetate, sodium acetoxy benzene sulfonate, trichloroethyl acetate, sorbitol hexaacetate, fructose pentaacetate, p-nitrobenzaldehyde diacetate, isopropaneyl acetate, acetyl aceto hydroxamic acid and Acetyl salicylic acid. Other examples are esters of phenols or substituted phenols with alpha-chlorinated lower aliphatic carboxylic acids, such as chloroacetylphenol and chloroacetylsalicylic acid, as disclosed in US Pat. No. 3,130,165.

4) Carboxylic esters having the formula Ac L, wherein Ac is an organic carboxyl comprising an optionally substituted straight or branched C ₆ -C ₂₀ alkyl or alkenyl terminal or C ₆ -C ₂₀ alkyl-substituted allyl terminal Is an acyl terminal of an acid, L is a leaving group and its conjugate acid has pK _a in the range of 4 to 13), for example oxybenzenesulfonate or oxybenzoate. Preferred compounds of this type are:

a) Ac is R ₃ -CO, R ₃ is a straight or branched chain alkyl group having from 6 to 20, preferably from 6 to 12, more preferably from 7 to 9 carbon atoms, where carbonyl carbon, including Extended long-chain alkyl chains contain 5 to 18 carbon atoms, preferably 5 to 10 carbon atoms, and R ₃ is optionally substituted by Cl, Br, OCH ₃ or OC ₂ H ₅ (preferably at the carbonyl terminal Alpha substituted). Examples of substances in this class include sodium 3,5,5-trimethylhexanoyloxybenzene sulfonate, sodium 3,5,5-trimethylhexanoyloxybenzoate, sodium 2-ethylhexanoyl oxybenzenesulfonate, sodium nonanoyl Oxybenzene sulfonate and sodium octanoyl oxybenzenesulfonate and acyloxy groups, each of which is preferably p-substituted.

b) Ac is the formula R ₃ (AO) _m XA wherein R ₃ is a straight or branched chain alkyl or alkylaryl group having 6 to 20, preferably 6 to 15 carbon atoms at the alkyl terminal, and R ₅ is Cl , Optionally substituted by Br, OCH ₃ or OC ₂ H ₅ , AO is oxyethylene or oxypropylene, m is from 0 to 100, X is 0, NR ₄ or CO-NR ₄ , and A is CO, CO -CO, R ₆ -CO, CO-R ₆ -CO or CO-NR ₄ -R ₆ -CO (wherein R ₄ is C ₁ -C ₄ alkyl and R ₆ is 1 at the alkylene or alkenylene terminal) Alkylene, alkenylene, arylene or alkylene having from 8 to 8 carbon atoms.Bleaching activator compounds of this type are carboxylic acid derivatives of the formula R ₃ (AO) _m OCOL, of the formula R ₃ OCO (CH ₂ ) ₂ COL acid derivatives of formula R ₃ OCH ₂ COL of the glycolic acid derivative of formula R ₃ OCH ₂ CH ₂ COL-hydroxy acid derivative of formula R ₃ R ₃₎ and (OCOCOL oxalic acid derivative of the OCOCH = CH Fumaric acid derivative of COL, acyl aminocaproic acid derivative of formula R ₃ CONR ₁ (CH ₂ ) ₆ COL, acyl glycine derivative of formula R ₃ CONR ₁ CH ₂ COL, and formula R ₃ N (R ₁ ) CO (CH ₂ ) Amino-6-oxocapronic acid derivatives of ₄ COL, wherein m is preferably 0 to 10, R ₃ is preferably C ₆ -C ₁₂ , more preferably C ₆ -C when m is 0; ₁₀ alkyl and C ₉ -C ₁₅ alkyl when m is not 0. The leaving group L is as defined above.

5) US Patent Specification No. Acyl-cyanurate as disclosed in 3,332,882, for example triacetyl- or tribenzoylcyanurate.

6) Anhydrides of optionally substituted benzoic acid or phthalic acid, such as benzoic anhydride, m-chlorobenzoic anhydride and phthalic anhydride.

Of all the above, organic peracid precursors of type 1 (c) and 4 (a) are preferred.

If present, the level of peroxy acid bleaching precursor of the total composition is preferably from about 0.1% to about 10%, more preferably from about 0.5% to about 5% (weight%), and is generally added in the form of bleaching precursor aggregates. .

Preferred bleaching precursor aggregates for use herein generally comprise a binder or flocculant at a level of about 5% to about 40%, more particularly about 10% to about 30% (weight%). Suitable flocculants include polyvinylpyrrolidone, poly (oxyethylene) having a molecular weight of 20,000 to 500,000, polyethylene glycols having a molecular weight of about 1000 to about 50,000, carbowax having a molecular weight of 4000 to 20,000, nonionic surfactants, fatty acids, sodium Carboxymethyl cellulose, gelatin, fatty alcohols, phosphates and polyphosphates, clays, aluminosilicates and polymeric polycarboxylates. Among the above, polyethylene glycol is very preferred, and in particular, it is preferred that the molecular weight is about 1,000 to about 30,000, preferably 2000 to about 10,000.

In terms of optimum dissolution and pH properties, from about 10% to about 75%, preferably from about 20% to about 60% (weight%) of peroxy acid bleaching precursor, from about 5% to about 60%, preferably about 5% to about 50%, more preferably about 10% to about 40% (weight%) carbonate / acid boiling couple, about 0% to 20% peroxoborate, and about 5% to about 40% Preference is given to bleaching precursor aggregates, preferably comprising from about 10% to about 30% (weight%) of flocculant.

The final bleached precursor granules have an average particle size of about 500 to about 1500, preferably about 500 to 1,000 μm, as desired, which is valuable in terms of optimum dissolution performance and aesthetics. In addition, the level of bleach precursor aggregate is preferably from about 1% to about 20%, more preferably from about 5% to about 15% (weight%) relative to the composition.

The compositions of the present invention are highly preferred tablet-like compositions, but may be in the form of paste tablets, granules or powders. Tablet-like compositions may be single or multilayer tablets.

Denture cleaning compositions of the present invention include other conventional ingredients of the formulation, in particular surfactants, chelating agents, enzymes, flavoring agents, physiological coolants, antimicrobial compounds, pigments, sweeteners, tablet binders and fillers, foaming sedatives such as dimethylpolysiloxanes, Foam stabilizers such as fatty acid sugar esters, preservatives, lubricants such as talc, magnesium stearate, finely divided amorphous pyrogenic silica, and the like. The free moisture content of the final composition is preferably about 1% or less and in particular about 0.5% or less.

Tablet binders and fillers suitable for use herein include polyvinylpyrrolidone, poly (oxyethylene) having a molecular weight of 20,000 to 500,000, polyethylene glycols having a molecular weight of about 1000 to about 50,000, carbowax having a molecular weight of 4000 to 20,000, nonionic interfaces Active agents, fatty acids, sodium carboxymethyl cellulose, gelatin, fatty acid alcohols, clays, polymerizable polycarboxylates, sodium carbonate, calcium carbonate, calcium hydroxide, magnesium oxide, magnesium hydroxide carbonate, Sodium sulfate, proteins, cellulose ethers, cellulose esters, polyvinyl alcohols, alginic acid esters, vegetable fatty substances with pseudocolloidal properties. Among the above, polyethylene glycol is very preferred, and particularly those having a molecular weight of about 1,000 to about 30,000, preferably about 12,000 to about 30,000.

The surfactants used in the compositions of the present invention can be selected from many solubles that are compatible with other components of the denture cleaner, both in dry state and in solution. It is believed that the material improves the boiling of other components of the composition by helping to penetrate the internal denture surface. The material also helps to remove food debris attached to the teeth. 0.1 to 5% by weight of dry powder or granular form, such as sodium lauryl sulfate, sodium N-lauryl sarcosinate, sodium lauryl sulfoacetate or dioctyl sodium sulfosuccinate or ricinole sodium sulfosuccinate Dry compositions of anionic surfactants can be included, for example, in the composition and preferably the surfactant comprises from 0.5 to 4 percent of the composition.

Suitable cationic, nonionic and zwitterionic surfactants are, for example, quaternary ammonium compounds such as cetyltrimethylammonium bromide, alkylene oxides such as ethylene or propylene oxide and fatty alcohols, phenols, fatty amines or fatty acids Condensates of alkanolamides, fatty acid alkanolamides themselves, polyalcohols or long chains with sugars, which are, for example, glyceryl monostearate or saccharose monolaurate or sorbitol polyoxyethylene mono- or di-stearate Esters of (C ₈ -C ₂₂ ) fatty acids or betaines, sulfobetaines or long chain alkylaminocarboxylic acids.

Chelating agents beneficially aid in cleaning and bleaching stability by protecting metal ions such as calcium, magnesium and heavy metal cations in solution. Examples of suitable detergents include aminopolycarboxylates such as sodium tripolisphosphate sodium acid pyrophosphate, tetrasodium pyrophosphate, nitrilotriacetic acid and ethylenediaminetetraacetic acid and salts thereof, and polyphosphonates and hydroxy ethanediphosphonic acid Aminopolyphosphonates such as ethylenediamine tetramethylenephosphonic acid, diethylenetriaminepentaphosphonic acid and salts thereof. The chelate chosen is not critical except when it is in the dry and aqueous state, it must be compatible with the other ingredients of the denture cleaner. Advantageously, the chelating agent comprises 0.1 to 60% by weight and preferably 0.5 to 30% by weight of the composition. However, the phosphate chelating agent preferably comprises from about 0.1 to about 1 weight percent of the composition, preferably from about 0.1 weight percent to about 0.5 weight percent.

Enzymes suitable for use herein are exemplified by proteases, alkalases, amylases, lipases, dextrases, mutanases, glucanases and the like.

Flavors suitable for the compositions of the invention include winter green oil, oregano oil, bay leaf oil, peppermint oil, spearmint oil, clove oil, sage oil, sasafrase oil, lemon oil, orange oil, anise oil, benzaldehyde, bitter ) Almond oil, camphor, cheddar leaf oil, marjoram oil, citronella oil, lavendar oil, mustard oil, pine oil, pine needle oil, rosehead oil, timuscho oil, cinnamon oil, and mixtures thereof It includes.

Suitable antibacterial compounds include thymol, menthol, triclosan, 4-hexylesorcinol, phenol, eucalyptol, benzoic acid, benzoyl peroxide, butyl paraben, methyl paraben, propylparaben, salicylamide and mixtures thereof.

The following examples further describe and describe preferred embodiments within the scope of the present invention.

The present invention relates to cleaning compositions, in particular compositions for use in dentures and the like. In particular, the present invention relates to a positional cleaning composition having improved antiplaque activity with excellent denture cleaning performance, appearance, physical and solubility, antibacterial efficacy and performance characteristics in use.

Examples I to V

The following are representative denture cleansing tablets according to the present invention. The percentage is the weight of the total tablet. Tablets are made by compressing a mixture of granulation components in a punch and colored tablet press at a pressure of about 10 ⁵ kPa.

1. Ethylenediamitramethylenephosphonic acid

2. Tetraacetylethylene Diamine

3. Sodium 3,5,5-trimethylhexanoloxybenzene sulfonate

4. Magnasoft Fluids Provided by OSI

5. Peppermint-Based Incense

In Examples I to V above, the total tablet weight is 3 g; The diameter is 25 mm.

The denture cleansing tablets of Examples I to V exhibit improved antiplaque, cleansing and antibacterial activity with good cohesion and other physical and performance characteristics in use.

Claims (14)

A denture cleaning composition comprising an inorganic peracid bleach, a boiling generator, and an aminoalkyl silicone. The composition of claim 1 wherein the aminoalkylsilicone is an acyclic, hydrophobic aminoalkylsilicon having the formula consisting of two basic units: 1) (R ¹ ) _m (R) _n SiO _{(4-mn) / 2} (wherein m + n is 1, 2 or 3, n is 1,2 or 3, m is 0, 1, 2 to be) ; And 2) (R ¹ ) _a (R ² ) _ｂ SiO _{(4-ab) / 2} (wherein a + b is 1, 2 or 3 and a and b are integers); [Wherein R ¹ and R ² are independently selected from H and from 1 to about 10 carbon atoms alkyl and alkenyl optionally substituted with fluoro or cyano group, hydroxy, alkyl group, and acetoxy, and R is

Wherein R ³ is a divalent alkylene of 1-20 carbon atoms optionally substituted or interrupted with an oxygen atom, and the same or different R ⁴ , R ⁵ and R ⁶ are optionally substituted with H, N and / or oxygen atoms Or an interrupted alkyl of 1 to 20 carbon atoms, X ⁻ is a monovalent anion, the aminoalkylsilicon comprising up to 60% of unit (1) based on repeating units). The composition of claim 2 wherein the aminoalkylsilicone has a molecular weight of 5,000 or greater. The composition of claim 2 wherein R ¹ and R ² are independently selected from methyl, ethyl, phenyl, vinyl, trifluoropropyl and cyanopropyl. 5. The composition of claim 4, wherein R ³ is divalent alkylene having 3 to 5 carbon atoms. The compound of claim 5, wherein R is (CH ₂ ) ₃ NH ₂ (CH ₂ ) ₃ NHCH ₂ CH ₂ NH ₂ , (CH ₂ ) ₃ N (CH ₂ CH ₂ OH) ₂ , (CH ₂ ) ₃ NH ₃ ⁺ X ^-, and _{(CH 2) 3 N (CH} 3) 2 (C 18 H 37) + X a composition selected from the ^_. 7. The composition of claim 6, wherein the aminoalkylsilicone is amodimethicone. 8. The composition of claim 1 comprising 0.01% to 25% (% by weight) of aminoalkylsilicon. 9. 9. The composition of claim 8, wherein the inorganic peracid bleach comprises one or more bleaches selected from alkali metal persulfates, alkali metal perborates and mixtures thereof. 9. The composition of claim 8, wherein the boiling generator comprises a (non) carbonate / acid boiling couple. The composition of claim 9 additionally comprising an organic peroxy acid bleaching precursor. 12. The organic peroxy bleaching precursor according to claim 11, wherein the organic peroxy bleaching precursor is an acylated polyalkyldiamine, in particular tetraacetylethylenediamine, and the formula AcL, wherein Ac is an optionally substituted straight or branched C ₆ -C ₂₀ alkyl or alkenyl terminal Or an acyl terminal of an organic carboxylic acid comprising a C ₆ -C ₂₀ alkyl-substituted allyl terminal, L is a leaving group, and its conjugate acid has pK _a having a range of 4 to 13). Composition selected. 4. The composition of claim 3 wherein the aminoalkylsilicone has a molecular weight of 5,000 to 100,000. The composition of claim 8 comprising from 0.1% to 5% (% by weight) of aminoalkylsilicon.