KR930008484B1 - Laundry treatment product - Google Patents

Abstract

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Description

Laundry treatment product

1 is a schematic representation of a single two-compartment opening bag in accordance with the present invention.

2 is a schematic representation of another single two-compartment bag according to the present invention.

3 is a schematic representation of a pair of single-compartment opening bags in accordance with the present invention.

4 is a schematic representation of a pair of two compartment open bags in accordance with the present invention.

The present invention relates to a textile processing product for use in a washing machine in the form of a single compartment or multicompartment bag containing a particulate bleach composition which may contain a detergent component. An essential component of the bleach composition is a cationic bleach precursor.

EP-A-163417 (Unilever C. 3035) discloses an unopened pouch containing sodium perborate monohydrate and the precursor tetraacetylethylenediamine (TAED) (used as laundry adduct). have. This bag contains no detergent ingredients and no mention of other bleaching systems.

EP-A-293139 (Procter & Gamble) discloses bleaching components including various bleach precursors such as tetraacetylethylenediamine (TAED) and 3,5,5-trimethyl hexanoyl oxybenzene sodium sulfonate (SNOBS). A calendar-bonded or calendar-end laundry bag is disclosed that contains a detergent composition that may contain.

U.S. Patent No. 4 410 441 (Unilever C. 1092) discloses a two compartment pouch for sequentially adding particulate detergent components into a wash liquor. One compartment contains non-bleaching detergent plastics and the other compartment contains sodium perborate tetrahydrate. Release into the wash liquor is via a water-insoluble water-permeable bag wall.

British Patent 836 108 (Henkel) discloses a bleaching detergent composition containing a percompound (preferably perborate) and an active agent such as benzoic anhydride or propionic anhydride. The active agent (in some cases the overcompound) may be surrounded by a water-soluble coating and separated from the rest of the components.

United States Patent Nos. 4 751 015 and 4 818 426 (Unilever C. 6034) and our pending U.S. Patent Application No. 90 201338.2 (Unilever C.6085) are cationic bleach precursors choline-4-sulfo. Phenyl carbonate itself and noodle morphology have been published. Other cationic bleach precursors are disclosed in EP-A-284292 and EP-A-303502 (Kao).

It has now been found that pocketing brings particular advantages and advantages with regard to bleach precursors in the form of cationic (quaternary ammonium or phosphonium).

The present invention is a laundry treatment product in the form of a single compartment or a multi-compartment bag capable of releasing the contents into the washing liquid during the washing process.

(Iii) bleach precursors substituted with quaternary ammonium or phosphonium,

(Ii) optional inorganic or organic peroxy bleach compounds (by amounts such that the molar ratio of (ii) to (iii) is in the range of 0.5: 1-20: 1), and

(Iii) a particulate laundry treatment composition containing one or more optional detergent components, wherein the precursor (ii) and the optional bleach compound (ii) together constitute 1-100% by weight of the composition. Laundry treatment product, characterized in that.

[Particulate laundry treatment composition]

The bag product of the present invention contains a particulate laundry treatment composition. This composition contains, as an essential component, a bleaching precursor substituted with quaternary ammonium or phosphonium. The bleach precursor is a peroxycarbonate precursor substituted with quaternary ammonium or phosphonium, more preferably collyl-4-sulfophenyl carbonate: or a quaternized precursor that can produce substituted cationic perbenzoic acid And, more preferably, N, N, N-trimethyl ammonium toluoyloxy benzene sulfonate. Examples of such and related materials and other suitable bleach precursors are described below.

Three important aspects of the invention will be described. In the first aspect the bag product is a bleach additive intended for use with a bleach detergent composition containing a peroxy bleach compound, in order to be particularly effective at low temperatures. These products themselves do not contain peroxy bleach compounds and do not contain ingredients that have a function other than the bleach precursor.

In a second aspect, the bag product provides a complete bleach system containing a peroxy bleach compound (ii), ie an inorganic or organic peroxide capable of releasing hydrogen peroxide in water, together with the bleach precursor. This second embodiment is particularly suitable for use with non-bleaching detergent compositions, but is typically fully formulated when it is necessary to wash laundry that is very dusty or stained to provide bleaching performance when bleaching the laundry. It can also be used to promote the bleaching performance of the composition.

In a third aspect, the bag is a self-contained complete laundry product comprising not only bleaching ingredients (i) and (ii) but also detergent ingredients (e.g. surfactants, builders, enzymes, fluorescents, antifoams, etc.). .

As will be explained in more detail in the future, the pouch may be in the form of a single compartment pouch but multi-compartment pouches are particularly preferred. Compartmentation can be usefully used to separate different components in different ways.

Cationic Bleaching Precursor

Peroxy acid precursors substituted with quaternary ammonium or phosphonium that can be used in the products of the present invention are described, for example, in U.S. Pat.Nos. 4,751 015 (Unilever C.6034) and 4 397 757 (Unilever B.423). ) EP-A-284 292 (Kao) and EP-A-303 520 (Kao) and EP-A-331-229 (Unilever C.7116). Examples of this class of peroxyacid bleach precursors are peroxycarboxylic acid precursors substituted with quaternary ammonium having the general formula:

Wherein R ₁ , R ₂ , R ₃ are each a group selected from C ₁ -C ₁₈ alkyl, alkenyl, hydroxyalkyl and polyoxy alkylene; Or two of R ₁ , R ₂ , and R ₃ together with R ₄ and N-atoms form a substituted or unsubstituted nitrogen-containing heterocyclic ring system; Or _two or more of R ₁ , R ₂ and R ₃ together with the N-atom form a substituted or unsubstituted nitrogen-containing hetirocyclic ring system and R ₄ (R ₁ and / or R ₂ and / or R ₃ And when not forming a nitrogen-containing heterocyclic ring system) is a bridging group (bridged group) selected from the following groups,

Where each N is 0 or 1

X ₁ and X ₂ is H or -SO _3, respectively ^- M ^+; -COO ^- M ⁺ ; -SO ₄ ^- M ⁺ ; ^{_{Z (-N + R 1 R 2}} R 3) -; -NO ₂ ; Is a substituent selected from a C ₁ -C ₈ alkyl group, M is hydrogen, an alkylimetallic, ammonium or an alkyl- or hydroxyalkyl-substituted ammonium cation, Z ⁻ is chloride, bromide, hydroxide, nitrate , Methosulfate, bisulfate or acetate anion.

Wherein X ₁ is hydrogen X ₂ is -SO ₃ ^- M ⁺ is preferably a ^- M ⁺ or -COO.

The following compounds are representative examples of precursors. R ₁ , R ₂ , R ₃ , M and Z ⁻ are as specified above and R is _one of R ₁ , R ₂ , and R ₃ .

Among these preferred compounds are (I), (II) and (III), and representative examples thereof are as follows.

Particularly preferred precursors of this class are compounds of class (II) which produce substituted cation perbenzoic acids having the general formula:

Representative examples are shown in structural formulas (ii), (iii) and (V). Particularly preferred compounds are N, N, N-trimethyl ammonium toluyloxybenzenesulfonate resulting from formula (ii).

Another class of bleach precursors that may be used in accordance with the present invention are peroxycarbonate precursors substituted with quaternary ammonium or phosphonium having the formula:

In transplantation R ₅ , R ₆ and R ₇ are each a group selected from alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, alkaryl, aryl, phenyl, hydroxyalkyl, polyalkylene and R ₈ OCOL ; Or two or more of R ₅ , R ₆ , R ₇ together form an alkyl substituted or unsubstituted nitrogen-containing heterocyclic ring system; Or one or more of R ₅ , R ₆ , R ₇ is combined with R ₈ to form an alkyl substituted or unsubstituted nitrogen-containing heterocyclic ring system, R ₈ is alkylene, cycloalkylene, alkylenephenylene, A bridging group selected from phenylene, arylene and polyalkoxylene, which is a bridging group unsubstituted or substituted with C ₁ -C ₂₀ alkyl, alkenyl, benzyl, phenyl, aryl radicals, and Z ⁻ is a suitable ratio with Q ^+. A monovalent or polyvalent anion which is bonded to form a charge neutrality, is an oxidatively stable anion that does not interfere with the bleaching caused by peroxycarboxylic acid, Q is nitrogen or phosphorus, and L is its conjugate acid. PKa is a leaving group in the range of about 6-about 13.

An effective leaving group leads to the rapid production of peroxycarbonate in the presence of a peroxygen source under practical conditions (ie detergent solution during washing of the fabric). In general, L should be an electron affinity structure that successfully promotes nucleophilic attack by peroxide anions.

Leaving groups exhibiting this property are substances having a pka in the range of about 6- about 13, preferably about 7- about 11, more preferably about 8- about 11.

Many suitable leaving group structures are disclosed in this patent document. For example, US Pat. Nos. 4 412 935 and 4 483 778, EP-A-170 386 and EP-A-166 571 describe examples of preferred leaving groups. Suitable leaving group L is a group selected from:

Wherein R ₉ and R ₁₀ are C ₁ -C ₁₂ alkyl groups, R ₁₁ is H or R ₉ and Y is H or a water-soluble group. Preferred water-soluble group is ^{_{-SO 3, - M +, -COO}} - M +, -SO 4 - M +, -N + (R 9) 3 X -, NO 2, OH, ON (R 3) 2 , and mixtures thereof Wherein M ⁺ is hydrogen, alkali metal, ammonium or alkyl or hydroxyalkyl substituted ammonium cation and X ⁻ is a halide, hydroxide, phosphate, sulfate, methylsulfate or acetate anion.

Most preferred of leaving groups is in the form of phenolsulfonates. Particular preference is given to the 4-sulfophenol form. Preferred counterions for the sulfophenol constructs are natrium, potassium and ammonium cations.

Most preferably, Q is nitrogen. In addition, the precursors and the respective peracid derivative compounds are R ₅ , R ₆ and R ₇ (can be the same or different from each other and alkyl, alkylaryl, benzyl, hydroxyalkyl, R ₅ and R ₆ or R ₅ and R ₆ are bonded together Preferably containing a quaternary ammonium carbon surrounded by a heterocyclic ring containing quaternary nitrogen, and a C ₁ -C ₂₀ radical selected from the group consisting of mixtures thereof.

In particular R ₅ is a short chain C ₁ -C ₄ alkyl group, preferably a methyl group, and R ₆ and R ₇ are long chain C ₇ -C ₂₀ alkyl or alkylaryl, for example stearyl, lauryl or benzyl groups. For R ₈ bridging groups between quaternary nitrogen and carbonate groups, R ₈ is C ₂ -C ₂₀ alkylene, C ₆ -C ₁₂ phenylene, C ₅ -C ₂₀ cycloalkylene, C ₈ -C ₂₀ alkylenephenylene group It is preferable that it is a bridging agent selected from.

Preferably the alkylene group should have two carbon atoms. It may also be substituted or unsubstituted with bridging groups C ₁ -C ₂₀ alkyl, alkenyl, benzyl, phenyl and aryl groups.

Preferred precursors of this class of compounds are represented by the following structural formula.

Most preferred here is 2- (N, N, N-trimethylammonium) ethylsodium 4-sulfophenyl carbonate chloride (colyl-4-sulfophenol carbonate). Other examples of this class are described in US Pat. No. 4,751 015 (Unilever C.6034), which is incorporated herein by reference.

Another preferred class of bleaching precursors for use in accordance with the invention is disclosed in EP-A-303520 (Cao). Particularly preferred examples thereof include N, N, N-trimethylammonium acetonitrile salts having the following formulas.

In transplantation X ⁻ is a polyvalent anion.

[Peroxy Bleaching Compound (ii)]

The particulate laundry treatment composition contained in the bag product of the present invention also contains an inorganic or organic peroxy bleach compound (ii) capable of producing hydrogen peroxide in an aqueous solution except in the case of the first embodiment.

In general, the molar ratio of hydrogen peroxide (or peroxy compound to produce the corresponding amount of H ₂ O ₂ ) to the bleach precursor is in the range of 0.5: 1 to about 20: 1, preferably 1: 1-10: 1.

Hydrogen peroxide sources are well known in the art. These include alkali metal peroxides, organic peroxides (e.g. urea peroxide) and inorganic persalts (e.g., perborate alkali metal salts, percarbonate alkali metal salts, perphosphate alkali metal salts, persulfate alkali metal salts). Mixtures of two or more of these compounds are also suitable. Particularly preferred are tetrahydrate and sodium perborate in the form of the monohydrate, and thromium percarbonate.

Sodium perborate monohydrate is particularly preferred because it has excellent storage stability and dissolves very quickly in laundry and bleach aqueous solutions. This rapid dissolution also contributes to the production of large amounts of peroxycarboxylic acid or peroxycarboxylic acid, thereby improving the surface bleaching performance.

Also particularly preferred is sodium percarbonate without any possible environmental bonds related to boron content, which does not generate borate ions that do not dissolve the polyvinyl alcohol based coatings in the wash liquor Especially preferred in the pocket. Compositions containing sodium percarbonate, the storage stability of sodium percarbonate in powders of low density, are not as good as the storage stability of sodium perborate, and thus benefit from pocketing.

Our pending application (C) with the same filing date as this specification, which claims priority to British Patent Application Nos. 89 19120.9 (filed Aug. 23, 1989) and 89 27433.6 (filed Dec. 5, 1989). 3352) describes a compartment (water soluble or insoluble) with two compartments containing one compartment containing sodium percarbonate (optionally including other usable ingredients) and the other compartment containing other detergent components (preferably zeolite). And claims the patent.

[Other Ingredients]

In the first and second aspects of the present invention, other components may be additionally contained as necessary to improve solubility or other properties.

Such optional ingredients may be contained in the particulate laundry treatment (bleaching) composition up to 50% by weight in total, but preferably not more than 25% by weight.

Detergent composition

In the third aspect of the present invention, the bag product contains the aforementioned bleaching ingredients (iii) and (ii) and detergent ingredients in the form of particles. For convenience, the components will be referred to as detergent compositions, but do not necessarily exist as separate substances, as will be described in detail later. The bleach and detergent components may be distributed separately or together in other compartments of the multi-compartment bag system.

The detergent composition may be a conventional low bulk density detergent powder or may be a medium bulk density detergent powder. Such compositions are well known in the art and most are commercially available and will not need further explanation.

However, particularly preferred is that the detergent composition should have a relatively high bulk density, ie, a bulk density of at least 500 g / 1, preferably at least 650 g / 1, more preferably at least 700 g / 1. The high bulk density powder exhibits the same washing performance as the powder having an average level of bulk density, but has a merit of storage and transportation since the volume of the powder becomes small. These powders are particularly appealing to the consumer when they are contained in the pouch, which makes the pouch relatively small and therefore more economical and simpler to put and handle. Compositions having a bulk density in the range of 800-10000 g / 1 can provide particularly compact and good bag products.

Suitable high bulk density detergent powders are described in EP-A-340013 (Unilever C.3255) and EP-A-351937 (Unilever C.3261) and EP-A-352135 (Unilever C.3312). Detergent powders produced by granulation and densification processes using a high speed mixer / granulator as disclosed in US Pat. Our pending U.S. filed on March 16, 1990, prioritizing European Patent EP-A-367339 (Unilever C.7139) and British Patent Application No. 89 07187.2, filed March 30, 1989. Spray drying using high speed mixers / densifiers (e.g., Rödaz recyclers) and the following medium speed granulators / densifiers (e.g., Lodge Flowshares) as disclosed in European Patent Application No. 90 200622.0. Or a powder produced by a two-step densification process of the dry mix base.

The detergent composition contained in the third aspect of the present invention contains at least one detergent active compound (surfactant), at least one detergent builder, and optionally other components as described below.

The total content of the detergent active compound in the detergent composition is 2-50% by weight, preferably 5-40% by weight. Detergent active compounds present are selected from anionic (soapy or non-soapy), cationic, zwitterionic, amphoteric, nonionic or combinations thereof. The anionic detergent active compound is suitably contained 2-40% by weight, preferably 4-30% by weight.

Synthetic anionic surfactants are well known to those skilled in the field. Examples thereof include alkyl benzene sulfonates, especially linear alkyl benzene sulfonates having a C ₈ -C ₁₅ alkyl chain length; Primary and secondary alkyl sulfates, in particular C ₁₂ -C ₁₅ primary alcohol sodium sulfate; Alkyl ether sulfonate; Olefin sulfonate; Alkanesulfonates; Alkyl xylene sulfonate; Diylkill sulfosuccinate; And fatty acid ester sulfonates.

Moreover, it is also preferable to contain the soap of 1 or more types of fatty acids. Sodium soaps derived from fatty acids from natural fatty acids such as coconut oil, tallow, sunflower oil or hardened rapeseed oil are preferred.

Materials used as suitable nonionic surfactants are in particular compounds of hydrophobic groups and reactive hydrogen atoms (e.g. aliphatic alcohols, acids, amides or alkylphenols) and alkylene oxides (especially ethylene oxide alone or ethylene oxide / propylene oxide). Reaction product.

Particularly suitable nonionic detergent compounds are alkyl (C ₆ -C ₂₂ ) phenol-ethyleneoxide condensates, linear or branched aliphatic C ₈ -C ₂₀ condensation products of primary or secondary alcohols with ethylene oxide; And a reaction product of propylene oxide with ethylenediamine and a product of condensation of ethylene oxide with an alkyl poly glycoside. Other so-called nonionic detergent compounds include long-chain tertiary amine oxides, tertiary phosphine oxides and dialkyl sulfoxides.

Particularly preferred substances are compounds in which primary and secondary alcohol ethoxylates, in particular C ₁₂ -C ₁₅ primary and secondary alcohols, are ethoxylated with an average of 5-20 moles of ethylene oxide per mole of alcohol.

The detergent composition also contains 5-80% by weight, preferably 20-80% by weight of one or more detergency builders.

Particularly suitable detergency builders are alkali metal (preferably sodium) aluminosilicates, preferably incorporated in amounts of 5-60% by weight (based on anhydrides) of the composition. Alkali metal aluminosilicates are crystalline or amorphous or mixtures thereof having the following general formula:

0.8-1.5 Na ₂ O · Al ₂ O ₃ ㆍ 0.8-6SiO ₂

These materials contain some boundary water and require a calcium ion exchange capacity of at least 50 mg CaO / g. Preferred sodium aluminosilicates have 1.5-3.5 SiO ₂ units (wherein). Amorphous and crystalline materials can be readily prepared by the reaction between sodium silicate and sodium aluminate, as is well described in the literature.

Suitable crystalline sodium aluminosilicate ion-exchange detergency builders are described, for example, in British Patent 1 429 143 (Procter & Gamble). Preferred commercially available zeolites A and X of this kind of preferred sodium aluminosilicates and mixtures thereof. Also of interest is the new zeolite P, published and claimed in European Patent No. 384 070A (Unilever T.3047).

It may also contain other additional builders in the detergent composition, if necessary or desired. Suitable organic or inorganic water soluble or non-aqueous supplemental builders will readily be proposed to the skilled detergent manufacturers by themselves. Inorganic builders that may be contained include alkali metal (usually sodium) carbonates, and organic builders include polycarboxylate polymers such as polyacrylates, acrylic acid / maleic acid copolymers, and acrylic phosphinates; Monomeric properties such as citrate, gluconate, oxydisuccinate, glycerol mono-, di- and tri-succinate, carboxymethyloxysuccinate, carboxymethyloxymalonate, dipicolinate, hydroxyethyl iminodiacetate monomeric) polycarboxylates; Organic precipitant builders such as alkyl- and alkenylmalonates and succinates, and sulfonated fatty acid salts.

Particularly preferred supplemental builders include polycarboxylate polymers, in particular polyacrylate and acrylic acid / maleic acid copolymers, used in detergent compositions in particular amounts of 0.5-15% by weight, more preferably 1-10% by weight; And monomeric polycarboxylates, in particular citric acid and salts thereof, used in detergent compositions in amounts of 3-20% by weight, more preferably 5-15% by weight.

Preferred detergent compositions for use in the present invention contain no more than 5% by weight of inorganic phosphate builders, preferably virtually no phosphate builders. However, as noted above, phosphate-build compositions also fall within the scope of the present invention.

Detergent compositions may also contain detergent enzymes well known in the art for their ability to aid in the removal of various types of contamination and stains. Suitable enzymes include various proteases, cellulases, lipases, amylases, and mixtures thereof, which serve to remove various stains and stains from the fabric. Examples of suitable proteases include Maxatase® (supplied by Gist-Brocadec en V., Delft, The Netherlands), Alcalase® Esperase® and Savinase (trademark; supplied by Novo Industries A / S of Copenhagen, Denmark). Detergent enzymes are typically used in amounts of about 0.1-about 3.0% by weight of the composition, optionally in the form of optionally coated granules or marumes.

Detergent compositions may also contain fluorescent agents (optical brighteners) such as Tinopal® DMS or Dinopal CBS (available from Ciba-Geigy Age of Basel, Switzerland). Tinopal DMS is 4,4'-bis- (2-morpholino-4-anilino-S-triazin-6-ylamino) stilbene disulfonic acid sodium and Tinopal CBS is 2,2'-bis Disodium (phenyl-styryl) disulfonic acid.

In particular, when the bag product is mainly used for the front loading drum type automatic washing machine, it is advantageous to contain the antifoam material in the detergent composition. Suitable antifoams are usually granular, as described in EP 266 863A (Unilever C.3128). Such antifoam granules are typically in a form in which a mixture of silicone oil, petrolatum, hydrophobic silica and alkyl phosphate (as antifoam) is adsorbed onto a porous, absorbent water soluble carbonate-based inorganic carrier material. The vesicle granules are contained in an amount of at least 5% by weight of the detergent composition.

It is also preferred to include alkali metal silicates, in particular ortho-, meta- or preferably neutral or alkaline sodium silicates, in the detergent composition. Inclusion of such an alkali metal silicate, for example, 0.1-10% by weight, is advantageous in that it suppresses corrosion of the metal part of the washing machine in addition to enhancing cleaning power and providing process advantages.

Additional ingredients that may optionally be included in the detergent composition include anti-redeposition agents such as sodium carboxymethyl cellulose, polyvinylrollidone and cellulose ethers (e.g. methylcellulose and ethylhydroxyethyl cellulose) : Heavy metal ion blocking agent (for example, ethylenediamine tetraacetate): Fragrance: Pigment: Pigment, coloring agent, or coloring speckle.

Inorganic salts such as sodium sulphate and magnesium may also be contained, if necessary, up to 40% by weight of the detergent composition. However, it may contain less than 10% by weight of the detergent composition, or nearly 0% by weight of sodium sulfate, which is generally preferred in terms of compactness. However, the inertness of such salts makes them useful as diluents.

[Preferred Detergent Composition]

As mentioned above, it is advantageous to be used in the third aspect of the present invention of high bulk density detergent compositions prepared by densification and granulation processes in a high speed mixer / granulator.

Such compositions generally contain 5-70% by weight, preferably 5-35% by weight of anionic surfactant: 0-10% by weight of nonionic surfactant: and 0-5% by weight of fatty acid soap.

One class of preferred detergent compositions that can be conveniently used in accordance with the present invention are detergent compositions containing crystalline or amorphous alkali metal aluminosilicates, preferably crystalline zeolites, more preferably zeolite 4A as detergency builders. Such compositions generally comprise (a) 5-35% by weight of a soap-free detergent active substance, at least a portion of which is composed of anionic surfactants, and (b) 15-45% by weight of crystalline or amorphous alkali metal aluminosilicates, based on anhydrides. , And optionally other detergent components in total up to 100% by weight. It is preferable that the weight ratio of (b) to (a) is 0.9: 1 or more.

A particularly preferred class of detergent compositions which can be used are described in the above-mentioned European Patent No. EP-A-340013 (Unilever C.3235) and the patent is claimed. These compositions comprise (a) 17-35% by weight of a soap-free detergent active material, at least part of which is composed of an anionic surfactant, and (b) a weight ratio of crystalline or amorphous alkali metal aluminosilicate ((b) to (a)). Is 0.9: 1-2.6: 1, preferably 1.2: 1-1.8: 1) 28-45% by weight, and 100% by weight of other optional detergent components in total.

A second preferred class of detergent compositions which can be conveniently used according to the invention is the detergent compositions disclosed in EP-A-351937 (Unilever C, 3261) mentioned above. These compositions comprise a weight ratio of (a) 12-70% by weight of the soap-free detergent active material and (b) a water-soluble crystalline inorganic salt (b) to (a) containing sodium tripolyphosphate and / or sodium carbonate, at least 0.4-1, Preferably 0.4: 1-9: 1, more preferably 0.4: 1-5: 1) and at least 100% by weight of other optional detergent components.

Such compositions preferably contain a total of 15-70% by weight of water-soluble crystalline inorganic salts such as sodium sulfate, ortho-or sodium pyrophosphate or meta- or sodium orthosilicate.

All compositions of this preferred class which can be used in the products according to the invention may contain customary amounts of other conventional ingredients as described above. Such ingredients may be mixed into the detergent composition at any suitable stage, and the skilled detergent manufacturer will have no difficulty determining which ingredients are suitable for mixing in the high speed mixer / granulator.

[Pouch system]

It has been found that filling the bleach composition and the detergent composition described above in the bag system is particularly effective. Pouches are particularly appealing to consumers because they are easy to store and handle. In addition, more precise dosing of the laundry treatment agent is possible, thus achieving a constant cleaning effect. Accurate injection into a bag-shaped product can prevent underfeeding that can result in wasteful overfeeding and poor cleaning effects. The present invention also has improved stability when stored in pockets, especially when stored under humid conditions.

As used herein, the term "pocket system" means any discrete bag structure. This may simply mean a single pocket or may have a more complex form, including a pocket with multiple pockets and / or compartments. Various aspects of the bag system of the present invention will be described in detail later.

In the first aspect of the invention, the preferred form is a single compartment pouch when only bleach precursors, optionally including trace ingredients, are present. Each bag may be a single input suitable for an average level of laundry, or may be several small unit inputs that are flexible to allow consumers to control the amount of use depending on the size and degree of contamination of the laundry.

Preferred unit sizes are half dosing, ie half dosing which is considered necessary for average washing. This allows consumers to use 1 unit for light contamination or small washes, 2 units for average washing, and 3 units for very large amounts of contaminated washing, without the hassle of using multiple units in very small units. . Of course, these single compartments (units) can be easily connected to each other in a way that can be easily separated (e.g. perforated perforations), so that multiple pocket systems can be created to separate them into separate pockets (units) when needed. This may in principle be regarded as a multi-compartment bag, and the term "multi-compartment bag" as used herein is used to include structures in which the compartments are not all the same, for example in size or in the contents or in two different elements. .

In a second aspect of the invention, bleach precursors and peroxy bleach compounds (ii) are present. This can be combined in one compartment if desired, or in different compartments of a two compartment bag. However, two compartment bags are preferred because they minimize the tendency of prehydrolysis of precursors upon storage. Regardless of the type of bag used, a single unit can be a single-feed or multiple small unit-types as described in the first aspect above, and the units can be easily separated as needed (e.g. For example, a perforated cut line may be connected to form a multi-pouch system.

[Bag machine for finished laundry products]

The third embodiment relates to a bag system containing a complete bleaching and detergent composition containing a bleach precursor (iii), a peroxy bleach compound (ii) and a detergent component (detergent composition) (iii). The simplest form is a single compartment bag containing all the components in a mixed state. As described above, as in the first and second embodiments, a single unit is a single-feed or several small unit splashes, and the unit is in such a way that it can be easily separated as needed (eg perforated cutouts). Can be connected to form multiple pocket systems.

It is also possible to separate and compartmentalize different components (iii), (ii) and (iii). In addition, each component of these components may be separated and distributed in different compartments and may exceed these components if it is advantageous or convenient to contain any minor components.

Multi-compartment bags allow for the separation of potentially reactive components by compartmentalization. For example, separating bleach precursors from certain detergent components minimizes the hydrolysis of the bleach precursors during storage, and allows the bleach precursors to be removed from the peroxy bleach compound (ii) (as in the second embodiment). I) Separation may adversely affect the possible bleaching performance during storage and may also reduce the action of anionic surfactants. That is, cationic carboxylic acids are produced as a result of bleach precursor hydrolysis or perhydrolysis, which react with cationic surfactants to form complex water with little or no detergency.

By bleaching the bleaching components (iii) and (ii) separately from the main detergent composition (iii), the consumer can freely wash the laundry by using or not using a bleach depending on the degree of contamination of the laundry. It is also possible to form a single or multiple subunits of a mixture of detergent and bleach compositions in one set of bags in different forms, but also bleach compositions in different sets of bags. This form allows consumers to use more or less bleach depending on the degree and type of contamination of the laundry.

Therefore, the product of the present invention can be supplied in a number of ways, some of which allow the consumer to vary the proportions so that different ingredients can be used for washing, and another method is always a fixed ratio between the various components. To keep. The embodiments described herein are not limiting and the skilled person can readily conceive of other combinations.

In the present invention, the multi-compartment bag has in principle several compartments, but a two-compartment bag is preferred to avoid excessive complexity. It was found that three specific two compartment pouches showed good results and will be described in more detail in the examples that follow.

Pocket system (a):

Bleach precursors (if any) are contained in the first compartment of the two-compartment bag with trace detergent compositions (if any), and peroxy bleach compounds (ii) and at least most detergent compositions Contained within the second compartment.

Pocket system (b):

The bleach precursor and at least most of the detergent composition are contained together in the first compartment, while the peroxy bleach compound (ii) is contained in the second compartment with (if any) trace detergent composition. It is contained.

Pocket system (c):

The bleach precursor and the peroxy bleach compound (ii) are contained in the first compartment together with (optionally) traces of detergent composition and at least the majority of the detergent composition in the second compartment. do. Of course, as mentioned above, each of the two compartment units can be connected to the other units by means of easily detachable means (eg perforated cut lines).

[Release of pouch contents]

In general, the bag system is preferably designed such that the contents are released immediately upon contact with or after contact with the wash liquor. In particular, it is preferable that almost all of the contents are released within 3 minutes from contact with the washing liquid, more preferably within 1 minute.

However, sometimes it is desirable to prepare a bag system such that at least one compartment or bag thereof retards or inhibits release of the treatment agent. For example, a two compartment bag may contain a detergent composition that can be released quickly and a bleach composition that can be released after a delay or in a more controlled manner. Suitable bag constructions are described in EP 236 136A (Unilever C.3105). The bag structure in the bag is also possible, which means that all or part of the bleaching and / or detergent composition is contained in the second bag or the first compartment or the first compartment completely contained in the second compartment containing the remaining components of the composition. Listen.

[Pocket size and shape]

Pockets can be used in many forms, but squares or rectangles are common. If two or more compartments are present, the compartments may be, for example, side by side joined by a common seal or may be back to back joined by a common wall. The side-by-side shape is more suitable and easier to manufacture when the two compartments are very different sizes, such as in the "pouch system (a) and (b)" case. Other multicompartment forms are disclosed in European Patent No. 236 136A (Unilever C.3105).

The size of the bag, of course, depends on the amount of bleach and / or detergent composition contained. The filling amount of the bag may be up to 100% by volume depending on the size and amount of the treatment agent contained, preferably 20% by volume or more of the bag, and 50% by volume or more is particularly required for compactness. Depending on the type of washing machine and the size of the laundry, the bag system of the present invention generally has a total amount of 2-50 g of a component (i) and (ii) (bleach composition) and a component (detergent) in the case of a single input type. 20-300 g of the composition). In other words, the minimum percentage of the total amount of components (iii) and (ii) is 1% of the composition.

[Pouch material]

The bag system of the present invention may be in an unopened form in which the pores present in the bag substrate are flushed with the washing liquid, or may be in an open or degradable form when the bag is in contact with the wash water. The openable bag may be removed from the washing machine after the bag is opened with the water insoluble material. The openable bag may be a water-permeable material or a water-impermeable material, preferably a water-permeable material. Suitable water-insoluble materials include paper, woven and nonwoven fabrics, natural or synthetic coatings, or combinations thereof having a basis weight of 1-100 g / m 3. Examples of such materials are described, for example, in EP-A-246897A (Unilever C. 3121), polyamides, polyesters, cellulose acetates, polyethylenes, polyvinyl chlorides, polypropylenes, cellulose fibers, regenerated Cellulose fibers and mixtures thereof. Preferred materials are cellulose / polyester blend fabrics, and manila / viscose nonwovens (used for sausage packaging). Preference is given to manila / viscose papers having a basis weight of about 5-40 g / m 3, in particular 10-30 g / m 2.

The openable pouch according to the invention is preferably sealed so that it is optionally coated inside or outside or inside and outside with a substance that is dissolved or dispersed in the wash liquor. Examples of such materials include animal glue, gelatin bean glue, daxtrin, quartz starch, natural rubber, cellulose derivatives, starch derivatives, silicates and n-methyl methoxy nylon.

The sealant material is preferably a heat sealable resin that is easy to purchase and easy to seal in bag making. Suitable heat sealable resinous materials include polyvinyl alcohol, polyvinyl acetate, polyvinyl pyrrolidone, polyethylene oxide, acrylic resins, and mixtures thereof. Such heat sealable resinous materials may also be used with the other water soluble or water dispersible materials described above.

As another form for water-sensitive seals, mechanically weak heat seals collapsed by the mechanical action of a washing machine as published in EP-B-11500 (Unilever C. 1039) and claimed therein May be provided.

The most preferred seal is a seal consisting of a water-sensitive component and a heat sealable component, as disclosed in the aforementioned EP-A-246897 (Unilever C. 3121) and claimed therein. These seals are sensitive at washing temperature to water and mechanical agitation encountered in a washing machine environment, so they are opened and the bag contents are released. Preferably the water sensitive component is selected from polyvinylpyrrolidone, polyvinylalcohol and daxtrin and the heat sealable component is selected from vinyl acetate homopolymer, vinyl acetate / ethylene copolymer and polyacrylic acid. Particularly preferred combinations are mixtures of polyvinyl pyrrolidone and vinyl acetate / ethylene copolymers.

Other preferred sealants based on polyvinylpyrrolidone are disclosed in EP-A-312277 (Unilever C.3196). It is also within the scope of the present invention that the bag material itself dissolves or disintegrates in laundry. Suitable examples of commercially available demand materials include polyvinyl alcohol, partially hydrolyzed polyvinyl acetate, alginates, cellulose ethers (eg carboxymethylcellulose and methylcellulose), polyethylene oxides, polyacrylates, And combinations thereof. The water soluble coating can optionally be used in combination with the non-water soluble coating described above. The encapsulating material may be sealed by heat sealing. The coating material is preferably thermoplastic so that it can be sealed by heat sealing. This is not necessary because the thermoplastic coating is provided over the entire coating or at the place where the seal is made. Sealing may also be accomplished by solvent welding.

[Description of Drawing]

The invention will be explained in more detail by way of example with reference to the accompanying drawings. In accordance with FIG. 1, a single two-compartment bag (1) comprises a first compartment (2) containing a noodle-type cationic bleach precursor and a peroxy bleach compound (3) and a particulate detergent. It has a second compartment 4 of equal size containing the composition 5. This is an example of the "pocket system C" mentioned above.

The pouch is made from a water-insoluble water dispersible material such as manila / viscose paper, which is a sausage wrapping paper. The two compartments 2 and 4 are each at least once demarcated by a water dispersible or water soluble seal which is opened to release the bag contents in the wash liquor. The sealant may be, for example, a heat sealable polyvinyl alcohol / polyvinyl pyrrolidone resin described in EP-A-246897 (Unilever C. 3121). Such resins can optionally be used to internally and / or externally coat the entire bag material. A perforated line 7 can optionally be provided between two compartments 2 and 4. However, this line is not necessary if the two compartments are not intended to be separated from each other in use.

Suitably the two compartments are each filled at least 20% by volume, more preferably at least 50%. The two-compartment bag is a one-time type used for laundry with an average level of contamination and degree in a top-loading washing machine (30-40 L of washing capacity). Before use, the washing machine is filled with the fabric, preferably above the rod, before it is filled. The size of the pocket is generally 30-200mm in the "X" mark direction and 40-240mm in the "Y" mark direction. According to FIG. 2, a single two-compartment bag 8 comprises a small first compartment 9 containing a noodle-type cationic bleach precursor and a compound consisting of a particulate detergent composition and a peroxy bleaching compound (12). ) Has a large second compartment 11. A seal 13, such as a first degree, is provided along at least one side. This pocket is an example of the above-mentioned "pocket system (a)". This two-compartment bag is a half-loading type that requires two to be used for laundry with average levels and levels of contamination in the top-loading washing machine (30-40 l of washing capacity).

The bag of FIG. 2 can be used in the "pouch system (b)" as described above. In this case, compartment 9 contains a peroxy bleach compound and compartment 11 contains a bleach precursor and a detergent composition. According to the attached figure 3 the rectangular single-compartment pocket 14 is connected by another rectangular single compartment bag 15 and a perforated line 16 between them.

Each single bag contains the fully formulated bleach and detergent composition 17 according to the invention, each half-filled. Two bags are preferably placed in the washing machine along with the fabric on top of the rods for laundering laundry of average contamination size and degree. If you want, you can separate it into two separate pockets. In this case, separation is not necessary. If the laundry is small and lightly contaminated, the consumer can separate the bag by tearing along the perforated line 16 to use only one bag.

According to FIG. 4, the dual two-compartment pocket 18 consists of two pockets 19 and 20 having two compartments 21, 22 and 23, 24, respectively. In this case, all four compartments are square. All four compartments are bounded by a water-soluble or water dispersible seal 25 that is opened so that at least one side releases the contents of the compartment in the wash liquor.

In each bag, one compartment (21), (23) contains a bleach composition (26) consisting of noodle-type cationic bleaching precursor and a peroxy bleaching compound, another compartment (22) of the same size, Reference numeral 24 includes a particulate detergent composition 27. Suitably the bag is filled at least 20% by volume, more preferably at least 50% by volume.

A perforated line 28 is provided between compartments 21/23 and 22/24 of the same kind and between different segments 21/22 and 23/24 of the same kind. Since the four compartment structure can be easily divided into two-compartment pockets 19 and 20, the compartments of each pocket are not easily separated from each other.

Each two-compartment bag (19) and (20) is half-loaded for the average level of use of laundry in the top-loading washing machine (30-40 L of washing capacity). Therefore, the four compartment structure 18 is a one-time type of laundry treatment agent for use of the average level of laundry.

The preferred size of this bag is generally 55-200 mm in the direction of "X" and 40-120 mm in the direction of "Y".

EXAMPLE

The invention is illustrated in more detail by the following non-limiting examples, where parts and percentages are by weight unless otherwise indicated.

Example 1, Comparative Example X

Two compartments of general structure containing bleach composition (ii) in the first compartment (compartment A) and high bulk density detergent powder in the second compartment (compartment B) shown in FIG. 1 of the accompanying drawings. Manufacture the pouch. This is an example of the "pocket system (c)" described above.

Section A- (iii) (ii) Bleaching Composition

The bleaching composition was prepared with the following composition.

weight%

Noodle-type collyl-4-sulfophenylcarbonate (see below) 51.0

Sodium Perbong Monohydrate 46.4

Dequest 2047 Granules 26

100.0

The noodle composition is as follows.

weight%

Collyl-4-sulfophenyl carbonate

(81.6% active ingredient) 84.0

C ₁₈ , 21 EO nonionic surfactant 7.2

Lauric acid 7.8

Sodium Lauryl Sulfate 1.0

Minor ingredients up to 100

Compartment B- (High) Bulk Bulk Powder

The high star density detergent powder of the following composition is prepared as follows. That is, spray drying the aqueous slurry of all components except speckle, enzyme and flavoring, and then the powder thus produced is a high speed mixer / granulator, as described in European Patent No. 340 013A (Unilever C.3235). After granulation and densification in FS-1200, it is prepared by mixing an enzyme and a speckle mill flavor.

weight%

Linear Alkylbenzenesulfonic Acid 25.0

Nonionic Surfactants 2.0

Soap 1.0

Zeolite 4A (anhydride) 35.0

Zeolite Water 9.99

Sodium Silicate 4.0

Acrylic Acid / Maleic Acid Copolymer 1.0

Sodium Sulfate 1.77

Fluorescent agent 0.18

Sodium carboxymethyl cellulose 0.9

Sodium Carbonate 15.5

Total Added Water 2.0

Speckle 0.8

Enzyme 0.6

Spices 0.25

The ratio of zeolite (anhydride) to the total non-soap surfactant in the composition is 1.29: 1. This powder has a high bulk density of 650 g / l or more. 33 g of the detergent composition is used.

The pouch material is a Manila / Viscose sausage packaging paper having a basis weight of 21 g / m 2. This bag material is coated and sealed with a resin / sealing material comprising a mixture of PVA / ethylene copolymer, polyvinylpyrrolidone and water.

The pouch is quickly opened in less than 30 seconds in the wash water in the top-load washing machine. The entire contents are discharged leaving no residue of detergent powder upon completion of the wash cycle.

In order to compare the bleaching performance of the two compartment bag of Example 1 with that of the control (Comparative Example VII) containing no bleach precursor, it was used in the following test. The detergent composition and the bag structure for the control laundry product are the same as in Example 1, except that the second compartment contains sodium sulfate (13 g).

In each case the laundry treatment product is discharged into 30 liters of water at 20 ° C and 6 ° (French hardness). Five evenly contaminated test cotton fabrics, each contaminated with one of the five contaminants, are washed in synthetic laundry for 10 minutes as shown in Table 1.

The bleach obtained is evaluated by measuring the change in reflectance for each of the five test contaminations. The results are shown in Table 1. The same bag product and washing conditions were used in the second experiment except that the water temperature was 10 ° C. The results are shown in Table 2.

TABLE 1 Changes in reflectance of test contamination on cotton fabrics after washing at 20 ° C

[Table 2] Change in reflectance of test contamination on cotton fabrics after washing at 10 ° C

* Tea, wine, oxtail and clay pollution are measured at 460mm and blackberry pollution is measured at 540mm.

Example 2

A two compartment bag containing a high bulk density detergent powder and each bleaching composition is made into a bag structure and detergent composition as shown in FIG. The bleaching composition was the same as in Example 1 except that sodium perborate monohydrate was replaced with the same amount of sodium percarbonate.

Example 3, Comparative Example Y

A second compartment pocket of the general structure shown in FIG. 1 of the accompanying drawings is produced. In each case, two compartments (compartment B) contained 25 g of the high bulk density detergent composition of Example 1. The contents of the first compartment (compartment A) are as follows.

Example 3

Nyl-type collyl-4-sulfophenyl carbonate g

(Same as Example 1) 4.5

Perborate monohydrate 6.0

Testquest 2047 Particles 0.19

10.69

Example Y

TEAD Particles 1.5

Perborate monohydrate 5.25

Sodium Sulfate 7.0

13.75

These are the embodiments of the "pocket system (c)" described above.

The composition of compartment A is selected at a concentration approximately equal to the peracid concentration of the wash liquor.

For test fabrics contaminated with tea, wine and blackberry, the bleaching performance of these bags and the bleaching performance of the control bag without bleach as in Example X were compared by a single wash of a two-pack top dishwasher. At this time, the contaminated washings were mixed and used, and washing water (7-25 ° C.) having a French hardness of 5 ° was used for a minute under low stirring. One bag was used for each wash.

Table 3 shows the difference (ΔΔR) between the increase in reflectance observed using the bleach bag system 3 or Y and the increase in reflectance observed using the control bag without bleach. The results shown in the table demonstrate the superiority of the bag system of Example 3 containing collyl-4-sulfophenylcarbonate under conditions of low washing temperature, low stirring and short washing time.

TABLE 3

Example 4-7, Comparative Example Z and P-T

In this experiment, the storage stability of various bag products of the present invention was compared with each other and compared with a control bag system containing a non-cationic bleaching precursor, tetraacetylethylenediamine (TAED). All products containing the peroxy bleach compound used and the high bulk density detergent composition of Example 1 are sodium perborate monohydrate.

The cationic bleach precursor noodle used in these examples has the following composition.

weight%

Collyl-4-sulfophenyl carbonate (75% active) 82.0

Palmitic acid 8.3

C ₁₈ , 21 EO nonionic surfactant 8.7

100.0

This composition is intended to release the same concentration of peracid in the wash liquor. The molar ratio of bleach precursor to peracid salt is therefore 1: 4 in compositions containing collyl-4-sulfophenyl carbonate and 1: 8 in compositions containing TAED.

The specifications of the two compartment pouch as described with reference to FIG. 1 of the accompanying drawings were prepared in 80 × 160 mm, filled with the ingredients shown in Table 4, and then heat sealed at 185 ° C./45 psi per second.

Bleaching by washing tea, wine and blackberry-contaminated test cotton fabrics without stable loads in a National Two-Tier Top-In Washing Machine containing 35 liters of hard water (5 ° C, 2 ° Mg) with a French hardness of 7 ° The performance was evaluated. At this time, the washing temperature is 25 ℃ and the washing time is 10 minutes. The reflectance difference (ΔR) at 460 mm of the test fabric before and after the washing process was used as a measure of the bleaching performance.

In addition, peracid crystallization was carried out using a standard pyosulfite titration method.

The product was tested at a relative humidity of 37 ° C./70% after storage for 10 days in an open box. As a control, the same tests were performed on freshly prepared low density detergent powders and freshly prepared low density detergent powders under the same conditions as bag products. The results are shown in Table 5.

TABLE 4

Example 4 and P-Pocket System (a)

Example 5 and Q-bag system (b)

Example 6 and R-Pocket System (c)

Example 7 and S-Two Identical Compartments

Comparative Example I, Z, T, U-low density detergent powder

Comparative Examples I and T represent freshly prepared detergent powders, while Z and U represent the same detergent powder after storage under the same conditions as the bag product.

TABLE 5

From the results of freshly prepared detergent powders (I, T), it is clear that a composition containing collyl-P-sulfophenyl carbonate (CSPC) can perform a much stronger bleaching effect than a composition containing TAED. However, after 10 days of storage as a low density detergent powder, this benefit is completely lost and the two detergent powders (Z, U) perform very similarly.

However, pocket formation is effective in preventing loss of bleaching activity for the author. The most effective bag system was the bag system of Example 4 in which the CSPC was isolated from all other components: the bag system (c) and the remaining salts of Example 6 in which the CSPC, peracid and dequest were separated from the detergent composition. The bag system of Example 5 (b), which is less protected but still significant, separate from the components: and the bag of the complete composition of Example 7, which provides some advantages.

For TAED compositions, the effect of bag formation was found to be much less.

[Example 8, Comparative Example 8, J, K, L, V, W]

Similar experiments were performed using sodium percarbonate instead of sodium perborate monohydrate as the bleach peroxide compound. The tested products are shown in Table 6 and the results are shown in Table 7.

TABLE 6

Example 8 and J-bag system (b)

Comparative Examples V, W, K and L-Low Density Detergent Powders

Examples V and K represent freshly prepared detergent powders and Examples W and L represent the same detergent powder after storage under the same conditions as the bag product.

Bag formation with both precursors improves bleaching stability for storage or the effect is generally greater than that of CSPC compositions.

TABLE 7

Claims (14)

A laundry treatment product in the form of a single-compartment or multi-compartment bag capable of dispersing its contents into the wash liquor during the washing process, comprising (i) a bleach precursor substituted with quaternary ammonium or phosphonium, and (ii) ) Optionally optional inorganic or organic peroxy bleach compounds (by amounts such that the molar ratio of (ii) to (iii) is in the range of 0.5: 1-20: 1), and (iii) at least one optional detergent component. A laundry treatment product comprising a particulate laundry treatment composition, wherein said precursor (ii) and said optional optional bleach compound (ii) together constitute 1-100% by weight of the composition. 2. The laundry treating product of claim 1, wherein the bleach precursor is a peroxycarbonate precursor. The laundry treating product according to claim 1, wherein the bleach precursor is collyl-4-sulfophenyl carbonate. The laundry treating product according to claim 1, wherein the bleach precursor is noodle-type collyl-4-sulfophenyl carbonate. The laundry treating product according to claim 1, wherein the laundry treatment product contains a peroxy bleach compound (ii) such that the molar ratio of the peroxy bleach compound (ii) to the bleach precursor is in the range of 1: 1 to 10: 1. . The laundry treating product according to claim 5, which contains a peroxy bleach compound (ii) selected from sodium perborate monohydrate and sodium percarbonate. 6. The laundry treating product according to claim 5, wherein the peroxy bleach compound (ii) and the bleach precursor are contained in different compartments of the multi-compartment bag. 6. The laundry treating product according to claim 5, wherein the peroxy bleach compound (ii) and the bleach precursor are contained together in a single compartment bag or in the same compartment of a multicompartment bag. The laundry treating product according to claim 1, comprising a particulate detergent composition as a component. 10. The laundry treating product of claim 9, wherein the particulate detergent composition and the bleach precursor are contained in different compartments of the multi-compartment bag. The compound according to claim 1, which contains a peroxy bleach compound (ii) and a particulate detergent composition, wherein the bleach precursor and (if any) traces of the particulate detergent composition are selected from the multi-compartment bag. The laundry treating product contained in the first compartment, wherein the peroxy bleach compound (ii) and at least most of the particulate detergent composition are contained together in the second compartment. The compound according to claim 1, which contains a peroxy bleach compound (ii) and a particulate detergent composition, wherein the bleach precursor and at least most of the particulate detergent composition are contained together in a multi-compartment bag, A laundry treatment product, characterized in that peroxy bleaching compound (ii) (optionally containing trace amounts of particulate detergent composition) is contained in the second compartment. The compound according to claim 1, which contains a peroxy bleach compound (ii) and a particulate detergent composition, wherein the bleach precursor and the peroxy bleach compound (ii) (optionally a small amount of particulate detergent composition) And (b) are contained together in the first compartment of the multi-compartment bag, and at least most of the particulate detergent composition is contained in the second compartment. The laundry treating product according to claim 1, which is in the form of a bag having two compartments.

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