JP4437674B2 - Liquid bleach composition - Google Patents

Description

  The present invention relates to a liquid bleach composition.

  Liquid bleaching agents based on hydrogen peroxide are preferred because they can be used for color and patterned clothing and can be applied directly to soiled areas. The liquid oxygen bleach currently on the market is generally applied in a predetermined amount to a cap and applied to clothing or put into a washing machine.

  In addition, a bleach activator is blended for the purpose of improving the bleaching effect and obtaining sufficient storage stability. Patent Documents 1 to 4 disclose compositions that improve the bleaching effect by combining hydrogen peroxide, a specific bleach activator, and a surfactant, and that do not impair storage stability. Patent Documents 5 to 9 describe liquid bleach compositions in which a bleach activator is stabilized using an ester-type cationic surfactant.

Further, Patent Document 10 describes a detergent composition comprising a water-soluble builder and an enzyme. In this document, it is described that an enzyme-free solution containing a water-soluble builder is first acted on the dirt, and after removing the dirt to some extent, the enzyme is allowed to act to obtain a high detergency.
JP-A-4-337399 Japanese Patent Laid-Open No. 5-206129 Japanese Unexamined Patent Publication No. 7-3293 JP-A-8-503017 JP 7-216390 A JP 7-228893 A Japanese Patent Laid-Open No. 7-305094 JP-A-8-35170 JP 2003-89799 A JP 9-512291 JP

  Bleach activators react with inorganic peroxides to produce organic peracids, which exhibit high bleaching performance. However, this organic peracid has the disadvantage that when its concentration is high, a diacyl form is formed and the bleaching performance is remarkably lowered. In addition, since stain pigments such as food spills are mainly dispersed in oil, it is important to obtain a high bleaching rate by allowing the organic peracid to act after washing the oil beforehand.

  Therefore, the problem to be solved by the present invention is to provide a liquid bleaching composition capable of obtaining higher bleaching performance in a bleaching agent that generates an organic peracid from a bleaching activator.

The present invention provides (a) inorganic peroxide (hereinafter referred to as component (a)), (b) --COO (M) _{(1 / f)} , --SO ₃ (M) _{(1 / f)} and -OSO ₃ (M) _{(1 / f)} Activation of alkanoyloxybenzene-type bleaching having a group selected from [M is a cation, and f is the valence of M] and a hydrocarbon group having 5 to 20 carbon atoms Agent (hereinafter referred to as component (b)), (c) a compound having a quaternary ammonium group and a hydrocarbon group having 5 to 20 carbon atoms in the molecule (hereinafter referred to as component (c)), (d) carbon number 5 Liquid bleaching containing an ester compound of ˜20 fatty acids and an alcohol having 1 to 5 carbon atoms (hereinafter referred to as “component (d)”) and water, the molar ratio of (d) / (b) being 0.001-10 An agent composition is provided.

  According to the present invention, a liquid bleach composition containing hydrogen peroxide capable of exhibiting high bleaching power can be obtained. The liquid bleach composition of the present invention can be used as a bleaching detergent for clothing by being applied or put into a detergent bath, and an unprecedented bleaching effect can be obtained.

<(A) component>
The component (a) of the present invention is an inorganic peroxide, and hydrogen peroxide is particularly preferable.

<(B) component>
The component (b) of the present invention contains -COO (M) _{(1 / f)} , -SO ₃ (M) _{(1 / f)} and -OSO ₃ (M) _{(1 / f)} [M is An alkanoyloxybenzene type bleach activated having a group selected from a cation, f represents the valence of M, and a hydrocarbon group having 5 to 20 carbon atoms, preferably 7 to 13 carbon atoms, particularly preferably 7 to 11 carbon atoms Agents that do not have a quaternary ammonium group are preferred, and compounds of general formula (I) are more preferred. The hydrocarbon group of component (b) is preferably an alkyl group or an alkenyl group, and more preferably an alkyl group.

[Wherein R ¹ is a hydrocarbon group having 5 to 20 carbon atoms, preferably 7 to 13 carbon atoms, particularly preferably 7 to 11 carbon atoms, n is 1 or 0, preferably 0, and X is —COO (M) _{(1 / f)} , -SO ₃ (M) _{(1 / f)} , -OSO ₃ (M) _{(1 / f)} , preferably -COO (M) _{(1 / f)} , -SO ₃ ( M) _{(1 / f)} . M represents a cation, preferably a hydrogen ion, an alkali metal ion, or an alkaline earth metal ion, and f represents a valence of M. ]

  Specific preferred compounds include alkanoyloxybenzenesulfonic acid or a salt thereof, alkanoyloxybenzenecarboxylic acid or a salt thereof. In particular, an alkanoyloxybenzenesulfonic acid having an alkanoyl group having 6 to 14 carbon atoms, preferably 7 to 13 carbon atoms, or a salt thereof is preferable. Specific preferred compounds are octanoyloxy-p-benzenesulfonic acid, nonanoyloxy-p-benzenesulfonic acid, 3,5,5-trimethylhexanoyloxy-p-benzenesulfonic acid, decanoyloxy-p-benzenesulfonic acid. , Dodecanoyloxy-p-benzenesulfonic acid, octanoyloxy-o- or -p-benzenecarboxylic acid, nonanoyloxy-o- or -p-benzenecarboxylic acid, 3,5,5-trimethylhexanoyloxy-o- Or -p-benzenecarboxylic acid, decanoyloxy-o- or -p-benzenecarboxylic acid, dodecanoyloxy-o- or -p-benzenecarboxylic acid, and salts thereof. As the salt, sodium salt, potassium salt, and magnesium salt are preferable, and sodium salt is particularly preferable from the viewpoint of solubility.

  Among these, nonanoyloxy-p-benzenesulfonic acid, decanoyloxy-p-benzenecarboxylic acid, nonanoyloxy-p-benzenecarboxylic acid, 3,5,5-trimethylhexanoyloxy-p-benzenecarboxylic acid, dodecanoyloxy -P-Benzenesulfonic acid and salts thereof are preferred from the viewpoint of the lipophilic soil bleaching effect.

<(C) component>
The component (c) of the present invention is a compound having a quaternary ammonium group and a hydrocarbon group having 5 to 20, preferably 7 to 14, and particularly preferably 11 to 14 carbon atoms in the molecule. Specifically, a compound of the general formula (II) is preferable. The hydrocarbon group of component (c) is preferably an alkyl group or an alkenyl group, and more preferably an alkyl group.

[Wherein R ² , R ⁴ , R ⁵ and R ⁶ are each a hydrocarbon group having 1 to 20 carbon atoms, and at least one of them is 5 to 20 carbon atoms, preferably 7 to 14 carbon atoms, particularly 11 to 14 hydrocarbon groups are preferred. T is —COO— or —OCO—, R ³ is an alkylene group having 1 to 6 carbon atoms, preferably 2 or 3, and m is 1 or 0. Y ^t- is an anionic group, preferably a sulfate ion, a fatty acid ion having 1 to 12 carbon atoms, a phosphate ion, an alkyl sulfate ester ion having 1 to 3 carbon atoms, and 1 to 3 alkyl groups having 1 to 3 carbon atoms. An aryl sulfonate ion having 6 to 9 carbon atoms that may be substituted, t is the valence of Y. ]

Specific examples of the compound (II) include
(II-1) One of R ² , R ⁴ , R ⁵ and R ⁶ is an alkyl group having 5 to 20, preferably 7 to 14, particularly preferably 11 to 14 carbon atoms, and the other is a methyl group. A mono long chain alkyltrimethylammonium salt with m = 0,
(II-2) One of R ² , R ⁴ , R ⁵ and R ⁶ is an alkyl group having 5 to 20, preferably 7 to 14, particularly preferably 11 to 14 carbon atoms, and one is an ethyl group A mono-long chain alkyldimethylethylammonium salt (especially tetradecyldimethylethylammonium salt) in which the other is a methyl group and m = 0,
(II-3) One of R ² , R ⁴ , R ⁵ and R ⁶ is an alkyl group having 5 to 20, preferably 7 to 14, particularly preferably 11 to 14 carbon atoms, and the other is a methyl group. M = 1, mono long chain alkanoyloxyalkyltrimethylammonium salt,
(II-4) One of R ² , R ⁴ , R ⁵ and R ⁶ is an alkyl group having 5 to 20, preferably 7 to 14, and particularly preferably 11 to 14 carbon atoms, and one is an ethyl group. And the other is a methyl group and m = 1, a mono long chain alkanoyloxyalkyldimethylethylammonium salt,
Is mentioned.

  Among these, preferred are octanoyloxyethyltrimethylammonium salt, octanoyloxyethyldimethylethylammonium salt, nonanoyloxyethyltrimethylammonium salt, nonanoyloxyethyldimethylethylammonium salt, decanoyloxyethyltrimethylammonium salt. Decanoyloxyethyldimethylethylammonium salt, dodecanoyloxyethyltrimethylammonium salt, dodecanoyloxyethyldimethylethylammonium salt, and the like.

<(D) component>
The component (d) of the present invention is an ester compound of a fatty acid having 5 to 20 carbon atoms and an alcohol having 1 to 5 carbon atoms, specifically, a compound represented by the following general formula (III) .

[Wherein, R ⁷ is a hydrocarbon group having 4 to 19, preferably 7 to 14, and particularly preferably 11 to 14 carbon atoms, and R ⁸ is a hydrocarbon group having 1 to 3 carbon atoms. Any hydrocarbon group is preferably an alkyl group or an alkenyl group, and particularly preferably an alkyl group. ]

  It is considered that the component (d) contributes to high bleaching performance in the present invention. Although the mechanism is not clear, it is presumed that the component (d) can obtain high bleaching performance by controlling the rate of formation of organic peracid. As the details, the following two mechanisms can be considered.

  (I) The component (b), which is a bleach activator that generates organic peracids, is often present in detergent micelles derived from detergents or components (e) when using bleach. By blending component (d), micelles become more lipophilic, component (b) is more stably incorporated into micelles, and the reactivity with component (a) decreases, so the rate of formation of organic peracids Is considered to be suppressed. It is known that the organic peracid derived from the component (b) generates a diacyl compound when its concentration is high. Since the reactivity of this diacyl compound is extremely low, the production efficiency of the organic peracid is deteriorated, resulting in a decrease in bleaching performance. By blending component (d), the rate of formation of organic peracid from component (b) was suppressed, resulting in a temporary increase in the concentration of organic peracid in the system. The total amount of peracid generated increases, and high bleaching performance can be obtained.

  (Ii) Next, it is known that stain stain pigments such as food spills are dispersed in the stain oil. In order to bleach this dye efficiently, it is effective to remove the oil in advance with a surfactant or the like and then to make an organic peracid act on it. In the present invention, since the organic peracid production rate is suppressed by the component (d), the organic peracid can act after the oil is removed, and high bleaching performance can be obtained. From these facts, by blending the component (d), in the present invention, it is possible to obtain a liquid bleach composition exhibiting high bleaching performance.

  In the present invention, from the viewpoint of bleaching performance, (d) / (b) (molar ratio, hereinafter the same applies to this ratio) is 0.001 to 10, preferably 0.001 to 2, more preferably 0.001 to 1, Preferably it is in the range of 0.005 to 0.5, most preferably 0.01 to 0.2. If (d) / (b) is 0.001 or more, the speed can be controlled appropriately and the bleaching performance can be improved. On the other hand, if (d) / (b) is 10 or less, it is preferable in terms of the reactivity of the component (b) with the component (a), and the bleaching performance can be improved within a practical time.

  Specific examples of the component (d) include methyl caproate, ethyl caproate, propyl caproate, methyl caprylate, ethyl caprylate, propyl caprylate, methyl pelargonate, ethyl pelargonate, propyl pelargonate, methyl caprate, Ethyl caprate, propyl caprate, methyl laurate, ethyl laurate, propyl laurate, methyl myristate, ethyl myristate, propyl myristate, methyl palmitate, ethyl palmitate, propyl palmitate, methyl stearate, stearic acid Examples include ethyl and propyl stearate. Among these, methyl laurate, ethyl laurate, methyl myristate, and ethyl myristate are particularly preferable from the viewpoint of the ability to suppress the peracid production rate.

<(E) component>
In the present invention, it is preferable to contain a surfactant as the component (e) from the viewpoint of storage stability. As the surfactant, an anionic surfactant, a nonionic surfactant and an amphoteric surfactant can be used.

As the anionic surfactant, an alkyl group or alkenyl group having 10 to 18 carbon atoms, preferably 10 to 16 carbon atoms, particularly preferably 10 to 15 carbon atoms, a —SO ₃ (M) _{(1 / f)} group, and An anionic surfactant having a //-OSO ₃ (M) _{(1 / f)} group [M: counter ion, f: valence of M] is preferred. Specifically, alkylbenzenesulfonic acid having an alkyl group having the above carbon number, alkyl (or alkenyl) sulfate, polyoxyalkylene alkyl (or alkenyl) ether sulfate, olefin sulfonic acid, alkane sulfonic acid, α-sulfo fatty acid, α Sulfo fatty acid esters and their salts are preferred. Among these, an alkyl (or alkenyl) sulfate ester having an alkyl group or alkenyl group having 10 to 16 carbon atoms, an alkyl group or alkenyl group having 10 to 16 carbon atoms, and an average addition mole number of ethylene oxide of 1 to 6, One or more selected from polyoxyethylene alkyl (or alkenyl) ether sulfates preferably 1 to 4, particularly preferably 1 to 3, or alkylbenzene sulfonic acids having an alkyl group having 10 to 15 carbon atoms, and salts thereof Is preferably blended. As the salt, sodium salt, potassium salt, ammonium salt and alkanolamine salt are preferable from the viewpoint of storage stability.

  The nonionic surfactant is preferably a polyoxyalkylene (carbon number 2 or 3) alkyl or alkenyl ether having an alkyl group or alkenyl group having 8 to 20 carbon atoms, and particularly a nonionic surfactant represented by the following general formula (IV): Is good.

^{R 9 -V - [(R 10} O) i -R 11] j (IV)
[Wherein R ⁹ is an alkyl group or alkenyl group having 8 to 18 carbon atoms, preferably 10 to 16 carbon atoms, and R ¹⁰ is an alkylene group having 2 or 3 carbon atoms, preferably an ethylene group. R ¹¹ is an alkyl group having 1 to 3 carbon atoms or a hydrogen atom. i represents a number of 2 to 100, preferably 4 to 60, more preferably 4 to 20, and particularly preferably 4 to 10. j shows the number of 1-5. V is -O-, -COO-, -CON- or -N-]

Specific examples of the compound of the general formula (IV) include the following compounds.
_{^{R 9 -O- (C2H4O) k -H}} (IV-1)
[Wherein R ⁹ has the above-mentioned meaning. k is a number of 4 to 20, preferably 4 to 10. ]
R ⁹ —O— (C ₂ H ₄ O) ₁ — (C ₃ H ₆ O) _m —H (IV-2)
[Wherein R ⁹ has the above-mentioned meaning. l and m are each independently a number of 1 to 10, preferably 2 to 10, and (C ₂ H ₄ O) and (C ₃ H ₆ O) may be random or block adducts. ]

[Wherein R ⁹ has the above-mentioned meaning. n and p are each independently a number of 0 to 10, and n + p is a number of 2 to 10, preferably 4 to 10. R ¹² and R ¹³ are each independently a hydrogen atom or an alkyl group having 1 to 3 carbon atoms. ]

  In the present invention, the compound of (IV-1) and / or the compound of (IV-2) is preferred as the nonionic surfactant from the viewpoints of cleaning effect and storage stability.

  The amphoteric surfactant is preferably a compound selected from the following general formula (VI) or general formula (VII).

[Wherein R ¹⁸ is a linear alkyl group or alkenyl group having 8 to 16 carbon atoms, preferably 10 to 16 carbon atoms, particularly preferably 10 to 14 carbon atoms, and R ²⁰ and R ²¹ are alkyl groups having 1 to 3 carbon atoms. Or it is a hydroxyalkyl group. R ¹⁹ is an alkylene group having 1 to 5 carbon atoms, preferably 2 or 3 carbon atoms. A is a group selected from —COO—, —CONH—, —OCO—, —NHCO—, and —O—, and c is a number of 0 or 1, preferably 1. ]

[In the formula, R ²² is an alkyl group or an alkenyl group having 9 to ²³ carbon atoms, preferably 9 to 17 carbon atoms, particularly preferably 10 to 16 carbon atoms, and R ²³ is 1 to 6 carbon atoms, preferably 1 to 4 carbon atoms, particularly Preferably it is 2 or 3 alkylene groups. B is a group selected from —COO—, —CONH—, —OCO—, —NHCO—, and —O—, and d is a number of 0 or 1, preferably 0. R ²⁴ and R ²⁵ are an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group, preferably a methyl group, an ethyl group or a hydroxyethyl group, and R ²⁶ is 1 to 1 carbon atoms which may be substituted with a hydroxy group. 5, preferably 1 to 3 alkylene groups. D is a group selected from —SO ₃ ⁻ and —OSO ₃ ⁻ , and —SO ₃ ⁻ is particularly preferable from the viewpoint of the bleaching washing effect. ]

  In the present invention, the nonionic surfactant of the general formula (IV), the cationic surfactant of the general formula (V), and the amphoteric surfactant of the general formula (VII) are preferable from the viewpoint of cleaning effect and storage stability, In particular, nonionic surfactants of general formula (IV) are most preferred.

<(F) component>
In the present invention, a metal sequestering agent is preferably contained as the component (f) for the purpose of improving the stability of hydrogen peroxide. As the metal sequestering agent, (f1) a phosphoric acid compound selected from phosphoric acid, tripolyphosphoric acid and phytic acid, (f2) ethane-1,1-diphosphonic acid, ethane-1,1,2-triphosphonic acid, ethane-1 A phosphonic acid selected from -hydroxy-1,1-diphosphonic acid, ethanehydroxy-1,1,2-triphosphonic acid, ethane-1,2-dicarboxy-1,2-diphosphonic acid, methanehydroxyphosphonic acid, (f3 ) Phosphonocarboxylic acid selected from 2-phosphonobutane-1,2-dicarboxylic acid, 1-phosphonobutane-2,3,4-tricarboxylic acid, α-methylphosphonosuccinic acid, (f4) from aspartic acid, glutamic acid, glycine Selected amino acids (f5) nitrilotriacetic acid, iminodiacetic acid, ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, glycol etherdiaminetetraacetic acid, hydroxyethyliminodiacetic acid, trie Lentetraamine hexaacetic acid, aminopolyacetic acid selected from diencoric acid, (f6) diglycolic acid, oxydisuccinic acid, carboxymethyloxysuccinic acid, citric acid, lactic acid, tartaric acid, oxalic acid, malic acid, oxydisuccinic acid, gluconic acid, carboxy Examples thereof include organic acids selected from methyl succinic acid and carboxymethyl tartaric acid, (f7) aminopoly (methylenephosphonic acid), or polyethylenepolyaminepoly (methylenephosphonic acid), and salts thereof, more preferably (f2) The phosphonic acid compound of (f5), the aminopolyacetic acid compound of (f5), the organic acid of (f6), the compound of (f7), and alkali metal salts thereof are preferred. In the present invention, in particular, ethane-1,1-diphosphonic acid, ethane-1,1,2-triphosphonic acid, ethane-1-hydroxy-1,1-diphosphonic acid, citric acid, ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, ethylenediamine2 Most preferred are compounds selected from acetic acid and 2-hydroxyethyliminodiacetic acid and their sodium salts.

<(G) component>
In the present invention, a radical trapping agent is preferably contained as the component (g). As the radical trapping agent, a phenolic compound is preferable, and in particular, phenol, catechol, hydroquinone, pyrogadol, hydroxybenzoic acid, hydroxyphthalic acid, phenolsulfonic acid, gallic acid, 2,6-di-tert-butyl-4-methyl. Phenol is preferred from the viewpoint of storage stability.

<(H) component>
In the present invention, the component (h) contains a homopolymer or copolymer obtained by polymerizing or copolymerizing acrylic acid, methacrylic acid, or maleic acid, or a copolymer with an unsaturated compound that can be copolymerized therewith if desired. Is preferable for the purpose of improving the bleach cleaning effect. Among these polymers, preferred are compounds having a weight average molecular weight of 3,000 to 100,000, more preferably 5,000 to 80,000 using polyethylene glycol as a standard substance in gel permeation chromatography. Further, such a polymer may be in the form of a salt partially neutralized with an alkali agent.

<(I) component>
In the present invention, a solvent is preferably used as the component (i) for the purpose of improving the bleach cleaning effect. As the solvent, (i1) a monohydric alcohol having 1 to 5 carbon atoms, (i2) a polyhydric alcohol having 2 to 12 carbon atoms, (i3) a compound represented by the following general formula (VIII), (i4) Examples include compounds represented by general formula (IX) and (i5) compounds represented by the following general formula (X).

[Wherein, R ²⁷ and R ²⁸ each represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a phenyl group, or a benzyl group, except that both R ²⁷ and R ²⁸ are hydrogen atoms. g represents a number from 0 to 10, and h represents a number from 0 to 10, except when both g and h are 0. R ²⁹ and R ³⁰ each represent an alkyl group having 1 to 3 carbon atoms. R ³¹ represents an alkyl group having 1 to 8 carbon atoms. ]

  Examples of the (i1) monohydric alcohol having 1 to 5 carbon atoms generally include ethanol, propyl alcohol, and isopropyl alcohol. By blending these lower alcohols, the stability of the system at low temperatures can be further improved.

  Examples of the polyhydric alcohol having 2 to 12 carbon atoms (i2) include isoprene glycol, 2,2,4-trimethyl-1,3-pentanediol, 1,8-octanediol, 1,9-nonanediol, and ethylene glycol. , Propylene glycol, diethylene glycol, dipropylene glycol, glycerin and the like.

In the general formula (VIII), the compound (i3) preferably has 1 to 4 carbon atoms when R ²⁷ and R ²⁸ are alkyl groups. Moreover, in general formula (VIII), g and h of the average addition mole number of ethylene oxide and propylene oxide are numbers of 0-10, respectively (except when both g and h are 0). The order of addition is not particularly limited, and may be randomly added. Specific examples of the compound (i3) include ethylene glycol monobutyl ether, dipropylene glycol dimethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monobutyl ether, propylene glycol monoethyl ether, propylene glycol dimethyl ether, Polyoxyethylene (p = 2 to 3) polyoxypropylene (p = 2 to 3) glycol dimethyl ether (p represents the average number of moles added), polyoxyethylene (p = 3) glycol phenyl ether, phenyl carbitol, phenyl Examples include cellosolve and benzyl carbitol. Among these, propylene glycol monomethyl ether, diethylene glycol monobutyl ether, and polyoxyethylene (p = 1 to 4) glycol monophenyl ether are preferable from the viewpoint of detergency and usability.

Examples of the compound (i4) include 1,3-dimethyl-2-imidazolidinone and 1,3-diethyl-2-imidazolidinone, and examples of the compound (i5) include alkyl glyceryl. Examples include ether compounds, and R ³¹ is preferably a compound having 3 to 8 carbon atoms.

  Among these, water-soluble solvents (i1), (i2), (i3), and (i5) are preferable in order to satisfy the properties of the present invention, particularly ethanol, isopropyl alcohol, ethylene glycol, propylene glycol, diethylene glycol, dipropylene. A solvent selected from glycol, glycerin, isoprene glycol, propylene glycol monomethyl ether, propylene glycol monoethyl ether, pentyl glyceryl ether, octyl glyceryl ether, and polyoxyethylene (average number of added moles of 1 to 4) glycol monophenyl ether is preferred.

<Liquid bleach composition>
In the liquid bleach composition of the present invention, the component (a) is 0.05% to 20% by mass, further 0.1 to 10% by mass, particularly 0.5 to 6% by mass, and the component (b) is 0.05%. % To 50% by mass, more preferably 0.1 to 20% by mass, and particularly preferably 0.5 to 10% by mass. Moreover, it is preferable to contain (c) component 0.05-50 mass%, 0.1-20 mass% further, 0.1-10 mass%, especially 0.1-5 mass%. The mass ratio of component (b) / component (c) is 1/100 to 100/1, more preferably 1/10 to 10/1, still more 1/5 to 5/1, particularly 1/3 to 3 /. 1 is preferred. In addition, (d) component is 0.05-50 mass% in the composition after satisfy | filling the range (0.001-10) of said (d) / (b) molar ratio, Furthermore, 0.1-20 mass%, Especially 0.5-10 It is preferable to be contained by mass%.

  In the liquid bleach composition of the present invention, the component (e) is 0.05 to 85% by mass, further 0.5 to 50% by mass, and more preferably 1 to 30% by mass from the viewpoint of storage stability and bleach cleaning effect. In particular, the content is preferably 2 to 20% by mass. Further, from the viewpoint of the stability of hydrogen peroxide, the component (f) is 0.001 to 10% by mass, more preferably 0.005 to 5% by mass, particularly 0.01 to 3% by mass, and the component (g) is 0%. -10% by mass, more preferably 0.001-5% by mass, and particularly preferably 0.005-1% by mass. Further, the component (h) is 0 to 20% by mass, more preferably 0.05 to 10% by mass, particularly 0.05 to 5% by mass, and the component (i) is 0 to 10% by mass, and further 0.1 to 7%. It is preferable to contain it by mass%, especially 0.5-5 mass%.

  The liquid bleach composition of the present invention is in the form of a liquid composition in which the above components are dissolved or dispersed in water, and the water used is ion-exchanged water or distilled water from which a small amount of metal dissolved in water is removed. Is preferable from the viewpoint of storage stability. Moreover, the pH at 20 ° C. of the composition of the present invention is preferably 7 or less, more preferably 1 to 6.5, still more preferably 2 to 5, and most preferably 2 to 4. For pH adjustment, it is preferable to use an inorganic acid other than hydrochloric acid or an acid form of the component (f), and sulfuric acid, phosphoric acid, phosphonic acid, and phosphonocarboxylic acid are particularly preferable. Since chlorine ions derived from hydrochloric acid or the like reduce the stability of hydrogen peroxide, the concentration of the composition is preferably 0.02% by mass or less. Further, the viscosity of the liquid bleaching composition of the present invention at 20 ° C. is preferably adjusted in the range of 3 to 500 mPa · s, preferably 4 to 300 mPa · s from the viewpoint of ease of use. In order to adjust to such a viscosity, a viscosity modifier can be blended in the present invention. As the viscosity modifier, an alkyl group having 1 to 3 carbon atoms, benzenesulfonic acid which may be substituted with 1 to 3 hydroxy groups, polyethylene glycol or polypropylene glycol having a weight average molecular weight of 3000 to 100,000 can be used. The amount of the viscosity modifier used is preferably 0 to 10% by mass, and more preferably 0.01 to 5% by mass in the composition of the present invention.

  Using the following compounds, liquid bleaching compositions shown in Table 1 were prepared, and organic peracid production and bleaching power were evaluated by the following methods. The results are shown in Table 1.

<Bleaching effect>
The composition of Table 1 was weighed to 40 mL, and poured into a solution obtained by dissolving 8 g of a commercial detergent (Kao Corporation, Attack) in 2 L of tap water at 20 ° C., and ketchup-contaminated cloth 5 prepared as follows: The sheet was immersed for 2 hours. The contaminated cloth was rinsed with tap water and dried, and the bleaching rate was calculated according to the following formula.

Bleaching rate (%) = [(reflectance after bleaching−reflectance before bleaching) / (reflectance of white cloth−reflectance before bleaching)] × 100
The reflectance was measured with NDR-10DP manufactured by Nippon Denshoku Industries Co., Ltd. using a 460 nm filter.

* Preparation of Ketchup-Contaminated Cloth 1 g of ketchup (manufactured by Kagome Co., Ltd.) was evenly coated on a 10 cm × 10 cm cotton gold cloth # 2023 and dried at room temperature for 3 hours for the test.

<Measurement method of organic peracid production>
Add 8 mL of the liquid bleach composition to be measured to 400 mL of an aqueous solution (cleaning solution) of a commercial detergent (Attack, Kao Co., Ltd.) at a concentration of 20 g / 5 L of water, stir for 30 minutes or 2 hours, and then add 4 mL of 1% catalase aqueous solution. The mixture was stirred for 3 minutes, and 10 mL of 20% sulfuric acid and 10 mL of 10% aqueous potassium iodide solution were added to develop a yellow color. Titration was performed with 1/50 N sodium thiosulfate until the yellow color disappeared, and the amount of organic peracid produced was determined according to the following equation. Table 1 shows a result obtained by converting the value into an amount per 1 L of the cleaning liquid.

Organic peracid production amount (mol) = (1/50) × [amount of sodium thiosulfate required for titration (L)] × 0.5

  In this evaluation, a large amount of organic peracid is not generated in 30 minutes of stirring, and a sufficient amount of organic peracid is generated for bleaching in 2 hours of stirring. In view of increasing the bleaching power, it is preferable.

Claims (4)

(a) inorganic peroxide, (b) -COO (M) _{(1 / f)} , -SO ₃ (M) _{(1 / f)} and -OSO ₃ (M) _{(1 / f)} [M Is a cation, f represents the valence of M], and an alkanoyloxybenzene bleach activator having a group selected from C5 to C20, and (c) a quaternary ammonium group in the molecule. A compound represented by the following general formula (II) having a hydrocarbon group having 5 to 20 carbon atoms, (d) an ester compound of a fatty acid having 5 to 20 carbon atoms and an alcohol having 1 to 5 carbon atoms, (e) an interface A liquid bleach composition comprising an activator and water, wherein the molar ratio of (d) / (b) is 0.001 to 2, and the pH at 20 ° C. is 7 or less.

[Wherein R ² , R ⁴ , R ⁵ , R ⁶ are one of R ² , R ⁴ , R ⁵ , R ⁶ , an alkyl group having 5 to 20 carbon atoms, and the other being a methyl group. A combination or a combination in which one of R ² , R ⁴ , R ⁵ and R ⁶ is an alkyl group having 5 to 20 carbon atoms, one is an ethyl group, and the other is a methyl group. T is —COO— or —OCO—, R ³ is an alkylene group having 1 to 6 carbon atoms, and m is the number of 1. Y ^t− is an anionic group, and t is the valence of Y. ] The liquid bleach composition according to claim 1, wherein (b) is a bleach activator represented by the following general formula (I) .

[Wherein R ¹ is a hydrocarbon group having 5 to 20 carbon atoms, n is a number of 0 , and X is —COO (M) _{(1 / f)} , —SO ₃ (M) _{(1 / f )} , -OSO ₃ (M) _{(1 / f)} . M represents a cation, and f represents the valence of M. ] The liquid bleach composition according to claim 1 or 2 , wherein (d) is a compound represented by the following general formula (III).

[Wherein, R ⁷ is a hydrocarbon group having 4 to 19 carbon atoms, and R ⁸ is a hydrocarbon group having 1 to 3 carbon atoms. ] The liquid bleach composition according to any one of claims 1 to 3 , wherein a mass ratio of (b) / (c) is from 1/100 to 100/1.