JPH07331280A - Bleach composition - Google Patents

Abstract

(57) [Summary] [Purpose] To obtain an alkali metal hypochlorite that has excellent storage stability without fear of decomposing the alkali metal hypochlorite even when stored for a long time under severe conditions. Providing a bleaching composition containing, further, even if the bleaching composition as a thickening system or a coloring system, without any adverse effect,
To provide a bleaching agent composition capable of exerting the effect of the bleaching agent composition. [Structure] The bleaching composition of the present invention comprises (a) an alkali metal hypochlorite salt; 0.1 to 13% by weight, (b) an alkali metal halide; 0.1 to 4% by weight, (c). Polyoxyalkylene alkyl ether carboxylate; 0.0
1 to 20% by weight and (d) an alkali agent; 0.1 to 5% by weight.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention has excellent storage stability.
The present invention relates to a chlorine-based bleaching agent composition containing an alkali metal hypochlorite.

[0002]

2. Description of the Related Art Conventionally, many cleaning / bleaching agent compositions containing an alkali metal hypochlorite as a main base have been known. Currently, the above cleaning and bleaching composition is used for disinfection of tableware used in public facilities, company cafeterias, general cafeterias, etc .; bleaching of kitchen products and clothing of general households; cleaning of toilets and drains, bleaching, and clogging removal. It is widely used for the purpose of sterilizing and deodorizing; bleaching mold stains generated in bathrooms. However, the above-mentioned cleaning / bleaching agent composition has a problem that decomposition of alkali metal hypochlorite is likely to occur, and improvement in storage stability is desired.

Therefore, in order to improve the storage stability of the above cleaning / bleaching agent composition, many attempts have been proposed. For example, in Japanese Patent Laid-Open No. 50-89280, the decomposition of sodium hypochlorite is performed by blending an alkaline aqueous solution of sodium hypochlorite with a specific surfactant represented by the following [Chemical formula 3]. Liquid wash bleach compositions having improved protection and storage stability are disclosed. In addition, JP-A-51-
37903, JP-A-51-5307, and JP-A-52-78905 disclose that in a hypochlorite-containing detergent composition, a polyoxyethylene alkylphenol ether sulfate ester salt and a surfactant are used as a surfactant. It is disclosed that the stability of hypochlorite is improved by blending an anionic surfactant such as alkyl diphenyl ether sulfonate. In addition, JP-A-5
JP-A-2-9006 describes that in a hypochlorite-containing liquid cleaning bleaching composition, a surfactant represented by the following [Chemical Formula 4] contributes to the stability of hypochlorite. ing.

[0004]

[Chemical 3]

[0005]

[Chemical 4]

Further, JP-A-54-114485 discloses that the stability of hypochlorite can be improved by alkali metal pyrophosphate, and JP-A-57-40081 discloses periodate ion. A stable aqueous solution of hypochlorite by containing a compound is disclosed in JP-A-63-273.
JP-A-2-212599 discloses a stable detergent composition containing sodium hypochlorite, which is obtained by applying acrylic acid or polyhydroxyacrylic acid or a mixture thereof and chlorine-resistant phosphonate or organic phosphonate.
The publication discloses a stable liquid detergent composition containing sodium hypochlorite, a sulfobetaine-type amphoteric surfactant, an amine oxide and a saturated fatty acid having 8 to 18 carbon atoms.

Further, JP-A-57-8298 discloses a thickened aqueous bleaching composition comprising an alkali metal hypochlorite and a carboxylated surfactant represented by the following [Chemical formula 5]. In the publication, by adding sodium chloride so that the sodium chloride content is 4 to 25% by weight in the hypochlorite-containing bleaching composition, the bleaching composition has an excellent stable thickening effect. However, there is no description or suggestion that the addition of sodium chloride can stabilize the hypochlorite-containing bleaching composition.

[0008]

[Chemical 5]

And, in general, the cleaning and bleaching composition is
No special consideration is given to quality deterioration during storage,
Especially in the summer, it is often stored under severe conditions such as storage under high temperature.

However, none of the hypochlorite-containing cleaning / bleaching compositions described in the above publications have sufficient storage stability for long periods under severe conditions. Further, even if the above hypochlorite-containing cleaning / bleaching agent composition can be given long-term storage stability, if it is a thickening system or a coloring system, long-term storage stability, particularly storage under severe conditions Stability is not always guaranteed.

Therefore, an object of the present invention is to provide an alkali metal hypochlorite which is excellent in storage stability without fear of decomposition of the alkali metal hypochlorite salt even when stored for a long time under severe conditions. Providing a bleach composition containing a salt,
It is another object of the present invention to provide a bleaching agent composition which can exert the effects of the bleaching agent composition without being adversely affected even if the bleaching agent composition is made into a thickening system or a coloring system.

[0012]

Means for Solving the Problems As a result of intensive studies, the present inventors have found that a bleaching composition containing a specific amount of an alkali metal hypochlorite, a polyoxyalkylene alkyl ether carboxylate and an alkaline agent, Further, it was found that the above object can be achieved by containing a specific small amount of alkali metal halide.

The present invention has been made based on the above findings, and provides a bleaching agent composition containing the following components (a), (b), (c) and (d) in the following amounts: To do. (A) Alkali metal hypochlorite; 0.1 to 13% by weight (b) Alkali metal halide; 0.1 to 4% by weight (c) Polyoxyalkylene alkyl ether carboxylate; 0.01 to 20% by weight % (D) Alkaline agent; 0.1 to 5% by weight

The bleaching composition of the present invention will be described in detail below.

The component (a) of the alkali metal hypochlorous acid salt used in the present invention is used as a bleaching component and is not particularly limited, but the component (a) includes hypochlorous acid. Potassium, sodium hypochlorite and the like are preferable,
Further, a mixture of these in an arbitrary ratio is also preferable.

The content of the above component (a) in the composition is
0.1 to 13% by weight (hereinafter, simply expressed as%), preferably 1 to 7% from the viewpoint of stability and performance. If the content is less than 0.1%, the bleaching performance, especially the bleaching speed will be insufficient, and if it exceeds 13%, the composition stability such as separation of the composition system may not be obtained, or The odor of chlorous acid becomes strong, which is not preferable in terms of product form. Incidentally, alkali metal hypohalites other than the above alkali metal hypochlorite have problems of cost and stability, and are not suitable for the composition of the present invention.

The alkali metal halide of the component (b) used in the present invention is used as a stabilizer for improving the composition and is not particularly limited, but as the component (b), salt, Potassium chloride and the like can be mentioned, and sodium chloride is particularly preferable in terms of cost.

The content of the above component (b) in the composition is
It is 0.1 to 4%, preferably 0.1 to 3%. In general, the alkali metal hypochlorite salt of the above-mentioned component (a) contains salt which is an alkali metal halide of the above-mentioned component (b). Since the content is less than 0.1%, the salt contained in the component (a) alkali metal hypochlorite must be significantly reduced.
It becomes very economically disadvantageous, and when it exceeds 4%, the decomposition of the alkali metal hypochlorite is promoted, which is not preferable.

The total amount of the alkali metal halide of the above component (b) in the composition of the present invention is the composition of the above component (b) including that in the alkali metal hypochlorite of the above component (a). The content may be within the range of the content (0.1 to 4%).

The polyoxyalkylene alkyl ether carboxylate as the component (c) used in the present invention serves as a solubilizer to improve storage stability and at the same time as a penetrant to improve bleaching performance, and is not particularly limited. Although not limited to this, the component (c) is as follows:
A compound represented by the general formula (I) (same as the above [formula 1]) is preferable.

[0021]

[Chemical 6]

In the compound represented by the general formula (I), the number of carbon atoms represented by R ₁ in the general formula (I) is 6
Examples of the linear or branched alkyl group of ~ 22 include dodecyl group, hexyl group, octyl group, decyl group, tetradecyl group, hexadecyl group, octadecyl group, and the like.
Particularly, a dodecyl group and a tetradecyl group are preferable, examples of the aryl group include a phenyl group, a tolyl group, a xylyl group, and a naphthyl group. Particularly, a phenyl group is preferable, and an alkylaryl group is particularly preferably a p-nonylphenyl group. As the linear or branched alkyl group having 5 to 22 carbon atoms represented by R ₃ in the R ₃ CONH-group represented by R ₁ , a hexyl group, an octyl group, a decyl group,
Examples thereof include dodecyl group, tetradecyl group, hexadecyl group, octadecyl group and the like, with dodecyl group being particularly preferred.

Further, as the linear or branched alkylene group having 2 to 4 carbon atoms represented by A in the above general formula (I), ethylene group, propylene group, isopropylene group,
Examples thereof include a butylene group and an isobutylene group, and an ethylene group and a propylene group are particularly preferable.

The linear or branched alkylene group having 1 to 4 carbon atoms represented by R ₂ in the above general formula (I) is a methylene group, a propylene group, an isopropylene group, a butylene group or an isobutylene group. And the like, and a methylene group and a propylene group are particularly preferable.

Examples of the alkali metal atom represented by M in the above general formula (I) include a sodium atom and a potassium atom, and a sodium atom is particularly preferable. As the alkaline earth metal atom, a calcium atom,
Examples thereof include magnesium atom.

In the general formula (I), n is 1
The number is from 50 to 50, but the range from 1 to 20 is particularly preferable.

Specific examples of the above component (c) include sodium hexyl polyoxyethylene oxaacetate (p [number of moles of ethylene oxide added] = 3.8), sodium octyl polyoxyethylene oxaacetate (p = 4.5). ), Sodium dodecyl polyoxypropylene oxaacetate (p =
2), sodium dodecyl polyoxyethylene oxaacetate (p = 10), sodium dodecyl polyoxyethylene oxapropionate (p = 5), sodium tetradecyl polyoxyethylene oxaacetate (p = 10), nonylphenyl polyoxyethylene oxa Sodium acetate (p = 6.0) and the like can be mentioned. Of these, alkyl (straight or branched chain having 8 to 10 carbon atoms) polyoxyethylene (p = 1 to 8) oxa is particularly preferable in terms of production cost. Preference is given to using mixtures such as sodium acetate, alkyl (straight chain or branched chain with 12 to 14 carbon atoms) polyoxyethylene (p = 1 to 20) sodium oxaacetate.

The content of the above component (c) in the composition is
It is 0.01 to 20%, preferably 0.01 to 10%. If the content is less than 0.01%, the permeability to dirt and the stability of available chlorine are insufficient, and the content is less than 20%.
If it exceeds%, it is not economical.

The alkali agent of the component (d) used in the present invention is used as a stabilizer of the alkali metal hypochlorite of the above component (a) and is not particularly limited, but the component is not limited. Examples of (d) include caustic alkali and silicates. Examples of the caustic alkali include sodium hydroxide, and examples of the silicate include sodium metasilicate. These alkaline agents are
These may be used alone or in admixture of two or more.

The content of the above component (d) in the composition is
It is 0.1 to 5%, preferably 0.1 to 2%. If the content is less than 0.1%, the stability of the composition system will be poor, and if it exceeds 5%, it may have an adverse effect on the skin or the eye mucous membrane, and There is no improvement in the effect due to the increase.

By increasing the viscosity of the composition of the present invention, the bleaching property and safety can be enhanced, and even in the case of this thickened system, the composition has good storage stability. In order to make the composition of the present invention into a thickened system, it is preferable to use a surfactant belonging to the following components (e) and / or (f).

(E) Alkali metal salt of fatty acid having 8 to 18 carbon atoms (f) Tertiary amine oxide represented by the general formula (II) of the following [Chemical formula 7] (the same as the above-mentioned [Chemical formula 2])

[0033]

[Chemical 7]

Further, in order to prepare a thickened system of the composition of the present invention, a surfactant of the following component (g) may be added to the above components (e) and / or (f). (G) Linear alkylbenzene sulfonate having an alkyl group having 8 to 20 carbon atoms and / or having 8 to 20 carbon atoms
Linear Alkylnaphthalene Sulfonate Having Alkyl Group

The surfactants of the above components (e), (f) and (g) are stable in the aqueous solution of the alkali metal hypochlorite of the above component (a) and are soluble in the alkaline aqueous solution. is there.

Among the above-mentioned surfactants, the alkali metal salt of saturated fatty acid having 8 to 18 carbon atoms of the component (e) is sodium salt of saturated fatty acid such as lauric acid, myristic acid, palmitic acid and stearic acid. Examples thereof include potassium salt.

In the tertiary amine oxide of the above component (f), the alkyl group having 8 to 20 carbon atoms represented by R ₁ in the general formula (II) is an octyl group, a decyl group, a dodecyl group or a tetradecyl group. , Hexadecyl group, octadecyl group and the like, and dodecyl group and tetradecyl group are particularly preferable. Further, the component (f) may be a mixture of tertiary amine oxides derived from natural products and having alkyl groups having different carbon numbers. In addition, the number of carbon atoms represented by R ₂ and R ₃ in the general formula (II) is 1
Examples of the alkyl group of to 3 include a methyl group, an ethyl group, a propyl group and the like, and a methyl group is particularly preferable.

Specific examples of the tertiary amine oxide of the above component (f) include lauryl dimethyl amine oxide, myristyl dimethyl amine oxide, coconut dimethyl amine oxide and the like.

The carbon number of the above component (g) is 8 to 20.
Examples of the linear alkylbenzenesulfonate having an alkyl group and / or the linear alkylnaphthalenesulfonate having an alkyl group having 8 to 20 carbon atoms include sodium dodecylbenzenesulfonate and sodium dodecylnaphthalenesulfonate. However, a mixture having an alkyl group having about 10 to 14 carbon atoms is particularly preferable because it is usually available at low cost.

It is preferable that the surfactants of the above-mentioned components (e) and (f) are used in combination, because it is effective for thickening the composition of the present invention, and in that case, the above-mentioned component (e) is used. Content in the composition of 0.1 to 5%, content of the component (f) in the composition of 0.1 to 5%, and weight of the component (e) and the component (f). The ratio (e) / (f) is 50/50 to 75/25, especially 51/49 to 65/35.
Is preferably used in the ratio of. If the above weight ratio is out of this range, the viscosity tends to be too high and the usability tends to deteriorate.

When the above component (g) is added to the above components (e) and / or (f), the content of the above component (g) in the composition is 0.1 to 5%, and the above components are included. (E),
It is preferable to mix the surfactants (f) and (g) in the composition such that the total content thereof is 0.1 to 10%.

The composition of the present invention can also be used as a coloring system. In the case of using a coloring system, one or more phthalocyanine pigment [component (h)] can be used as a coloring system. Preferably, even in the case of such a coloring system,
It has very good storage stability. The phthalocyanine pigment [component (h)] is not particularly limited, but a compound represented by the general formula (III) of the following [Chemical formula 8] is preferable.

[0043]

[Chemical 8]

In the above general formula (III), the halogen atom represented by X is preferably one or a combination of two or more selected from a chlorine atom, a bromine atom and an iodine atom. Further, as the metal atom represented by M, Is preferably one type or a combination of two or more types of iron atom, cobalt atom, and copper atom, and among these, a copper atom is particularly preferable.

As the phthalocyanine pigment [component (h)] represented by the general formula (III), one having a halogen substitution number n of 0 to 16, particularly 8 to 16 in the general formula (III) is used alone. Alternatively, it can be preferably used as a mixed pigment whose color is adjusted.

The above phthalocyanine pigment [component (h)]
Is an aqueous dispersion at room temperature and usually has a particle size of 0.01
Those having a size of up to 0.3 μm are commercially available, and the commercially available products can be used.

The content of the above component (h) in the composition is preferably 0.00001 to 0.01%. If the content is less than 0.00001%, the coloring effect is small, while if it exceeds 0.01%, the dispersion stability tends to decrease.

The sulfonate and carboxylate salts of the compound represented by the general formula (III) above cannot be used because they impair the storage stability of the composition of the present invention.

When the above-mentioned phthalocyanine-based pigment [component (h)] is blended in the composition of the present invention, a water-soluble polymer having a sulfonic acid group [component (i) is used for the purpose of further stabilizing the dispersion of the pigment. ] Is preferably blended.

Examples of the water-soluble polymer having a sulfonic acid group as the component (i) include a water-soluble polymer composed of a formaldehyde condensate of an aromatic compound having a sulfonic acid group or a sulfonic acid group or a salt thereof, or styrenesulfonic acid. , 2-acrylamido-2-methylpropane sulfonic acid, allyl sulfonic acid, vinyl sulfonic acid, methallyl sulfonic acid and sulfopropyl methacrylate, or a water-soluble monomer comprising one or more monomers selected from the group consisting of salts thereof. Polymers or copolymers are preferred. The aromatic compound having a sulfonic acid group or a sulfonate group, petroleum sulfonic acid or a salt thereof, naphthalene sulfonic acid or a salt thereof,
Those selected from the group consisting of lignin sulfonic acid or a salt thereof, creosote oil sulfonic acid or a salt thereof and cresol alkylene sulfonic acid or a salt thereof are preferable.

Specific examples of the water-soluble polymer having a sulfonic acid group of the above component (i) include metacresol methylene sulfonic acid-shefferic acid formalin condensate salt (for example, Demor SSL; trade name of Kao Corporation). ), Meta-cresol methylene sulfonic acid formalin condensate salt (for example, Demol SC30; trade name of Kao Corporation),
Butylnaphthalenesulfonic acid formalin condensate salt, creosote oil sulfonic acid formalin condensate salt (for example, Demol C; trade name of Kao Corporation), naphthalenesulfonic acid formalin condensate salt (for example, Demor NL; Kao (stock) )), Lignin sulfonic acid formalin condensate salt, melamine sulfonic acid formalin condensate salt, sodium styrene sulfonate polymer, and the like.

Among the above-mentioned components (i), from the viewpoint of maintaining good stability during storage of the above-mentioned phthalocyanine pigment [the above-mentioned component (h)] in the composition, naphthalene sulfonate formalin condensate salt, butyl naphthalene. Sulfonic acid formalin condensate salt, meta-cresol methylene sulfonic acid-sherfaric acid formalin condensate salt, meta-cresol methylene sulfonic acid formalin condensate salt, creosote oil sulfonic acid formalin condensate salt, etc. Particularly preferred.

The content of the above component (i) in the composition is preferably 0.001 to 3% by weight, more preferably 0.0 to 3% by weight.
It is 1 to 1.5% by weight.

The composition of the present invention further comprises the above-mentioned component (c).
In addition to the above-mentioned surfactant and the above-mentioned components (e), (f) and (g), other commonly used surfactants can be blended. The other surfactant is not particularly limited, but examples of the other surfactant include alkane sulfonate, a fatty acid salt other than the component (e), an alkyl sulfate ester salt, and the component (g). ) Other than alkylbenzene sulfonate, alkylnaphthalene sulfonate, alkyl sulfosuccinate, alkyl diphenyl ether disulfonate, alkyl phosphate, polyoxyethylene alkyl sulfate ester salt, polyoxyethylene alkyl allyl sulfate ester salt, polyoxyethylene Anionic surfactants such as alkylphenyl ether sulfonates (excluding nitrogen-containing anionic surfactants such as amino acid derivatives); polyoxyethylene alkyl ethers, polyoxyethylene alkyl allyl ethers, oxyethylene / oxypropylene blocks Polymers, nonionic surfactants such as ethylene oxide / propylene oxide adducts of lower / higher alcohols (excluding ester type, amine type, amide type and sugar skeleton nonionic surfactants); sulfobetaine, carbobetaine, etc. Examples thereof include amphoteric surfactants and cationic surfactants, and these can be used alone or in combination of two or more.

Further, the composition of the present invention is prepared by combining two or more kinds of the above-mentioned other surfactants by a known technique and an electrolyte such as an inorganic water-soluble salt such as NaCl, mirabilite, calcium salt or magnesium salt. It is possible to further improve the stability effect of the present invention by blending it into a thickening system.

Further, by trapping a heavy metal contained in a trace amount in the composition of the present invention with a chelating agent, further stabilization can be achieved. For example, aminophosphonic acid-N-oxide, especially [nitrilotris (methylene)] trisphosphonic acid-N-oxide, 2-phosphonobutane-1,2,4-tricarboxylic acid salt, 1-hydroxyethane-1,1-diphosphone. Application of acid salts, cross-linked polycarboxylic acid salts and the like can be mentioned as application examples of known techniques.

Examples of aminocarboxylic acid salts such as ethylenediamine tetraacetate and nitrilotriacetate; oxycarboxylic acid salts such as citrate, malate and tartrate; succinic acid, glutaric acid, adipic acid, etc. The application of a chelating agent such as a dicarboxylic acid type compound; a phosphate type compound such as pyrophosphate, tripolyphosphate, hexametaphosphate, etc. is not preferable because the decomposition itself is caused in the hypochlorous acid aqueous solution.

In the composition of the present invention, aromatic sulfonates such as toluene sulfonate, xylene sulfonate, cumene sulfonate, naphthalene sulfonate, and the like, as a builder for improving the cleaning performance; fluorescent dyes. ; BH
It is also possible to incorporate components such as radical scavengers such as T; abrasives and turbid agents such as calcium carbonate, silica, montmorillonite, and smectite; perfumes such as terpene alcohol-based perfumes. The bleaching composition of the present invention usually contains the above essential components (a), (b),
It is prepared by adding a balanced amount of water to (c) and (d) and the above optional components other than the above.

[0059]

EXAMPLES The bleaching composition of the present invention will be described in more detail with reference to the following examples. However, the invention is not limited by these examples.

Example 1 Each liquid bleaching agent composition having the composition shown in the following [Table 1] and [Table 2] (composition ratio unit: wt%) was prepared, and the storage stability, color stability and viscosity of each of them were measured. It evaluated based on the following evaluation methods and evaluation criteria. The results are shown in [Table 1] and [Table 2] below.

Evaluation Method for Storage Stability The prepared liquid bleach composition was applied to a polyethylene cylinder cylinder.
600 ml tor (full volume 725 ml, bottom wall thickness 0.6 mm)
Fill and seal, store at 50 ° C for 1 month, and then take it out.
Then, the bulge of the cylinder bottle was visually observed. <Evaluation Criteria for Storage Stability> ○: No change △: Bottle bottom swells slightly and the bottle does not sit well
×: The bottom of the bottle swells and the bottle collapses.
The internal pressure is 0.6 kg / cm ²When it is above, the bottle is like this
State)

Evaluation Method of Color Stability 600 ml of the prepared colored liquid bleaching composition was filled and sealed in a polyethylene cylinder bottle (full volume 725 ml, bottom wall thickness 0.6 mm) and stored at 50 ° C. for 1 month. After that, a part of the sample was taken, and the color change of the sample after storage was visually observed in comparison with the sample before storage. <Evaluation Criteria for Color Stability> ◯: No color change Δ: Slightly faded ×: Decolorized

Evaluation Method of Viscosity and Evaluation Criteria The prepared liquid bleaching agent composition was measured using a B type viscometer at 20
The viscosity was measured after 60 seconds at 60 ° C. and expressed in units of cP (centipoise). However, 1 cP = 10 ⁻³ Nsm ⁻²
Is.

[0064]

[Table 1]

[0065]

[Table 2]

From the above [Table 1] and [Table 2], the products 1 to 7 of the present invention are the comparative example 1 containing the excessive amount of the essential component (b) and the comparative products 2 to 4 not containing the essential component (c). In comparison, thickening system,
It can be seen that good stability is exhibited in both the coloring system and the thickening / coloring system.

Among the products 1 to 7 of the invention, the products 3, 6 and 7 of the invention of the thickening type and the thickening / coloring type are suitable for toilet bowl cleaners, drain pipe cleaners and the like. The non-thickened / non-colored and non-thickened / colored products of the present invention 1, 2, 4, 5 are suitable for kitchen, bathroom mold removal, drain pipe cleaners and the like.

[0068]

The bleaching composition of the present invention is a bleaching composition having excellent storage stability, which is unlikely to decompose the alkali metal hypochlorite even when stored for a long time under severe conditions. (Claim 1). The bleaching composition of the present invention further contains the specific polyoxyalkylene alkyl ether carboxylate to further improve the above effect (claim 2). The bleaching agent composition of the present invention can thicken the system by containing a specific surfactant, and this thickened system is also excellent in storage stability (claim 3,
4). The bleaching composition of the present invention can be colored by containing a specific phthalocyanine-based pigment, and even this colored system is excellent in storage stability and color stability (claim) 5). The bleaching agent composition of the present invention contains a water-soluble polymer having a sulfonic acid group together with a specific phthalocyanine pigment, whereby the pigment dispersibility is enhanced and the above effects (storage stability and color stability) are further improved. (Claim 6). The bleaching agent composition of the present invention contains a water-soluble polymer having a specific sulfonic acid group together with a specific phthalocyanine pigment, whereby the pigment dispersibility is further enhanced and the above effects (storage stability and color stability) are achieved.
Is further improved (Claim 7).

Claims (7)

[Claims] 1. A bleaching composition comprising the following components (a), (b), (c) and (d) in the following amounts. (A) Alkali metal hypochlorite; 0.1 to 13% by weight (b) Alkali metal halide; 0.1 to 4% by weight (c) Polyoxyalkylene alkyl ether carboxylate; 0.01 to 20% by weight % (D) Alkaline agent; 0.1 to 5% by weight 2. The bleaching composition according to claim 1, wherein the component (c) is a compound represented by the following general formula (I). [Chemical 1] 3. As a surfactant, the following components (e) and / or (f) are further added in a total amount of 0.1 to 10% by weight.
The bleaching composition according to claim 1 or 2, which contains the bleaching agent composition. (E) Alkali metal salt of fatty acid having 8 to 18 carbon atoms (f) Tertiary amine oxide represented by the following general formula (II) 4. A linear alkylbenzene sulfonate having an alkyl group having 8 to 20 carbon atoms and / or a linear alkylnaphthalene sulfonate having an alkyl group having 8 to 20 carbon atoms [component (g)]. , The above component (e) and / or
The bleaching agent composition according to claim 3, which is contained so that the total amount with (f) is 0.1 to 10% by weight. 5. A phthalocyanine pigment [component (h)] in an amount of 0.00001 to 0.01% by weight.
The bleaching composition according to any one of 1. 6. The bleaching composition according to claim 5, which contains 0.001 to 3% by weight of a water-soluble polymer [component (i)] having a sulfonic acid group. 7. The component (i) is a water-soluble polymer comprising a formaldehyde condensate of an aromatic compound having a sulfonic acid group or a sulfonate group or a salt thereof, or styrenesulfonic acid, 2-acrylamido-2-methyl. 7. A water-soluble polymer or copolymer comprising one or more monomers selected from the group consisting of propanesulfonic acid, allylsulfonic acid, vinylsulfonic acid, methallylsulfonic acid and sulfopropylmethacrylate or salts thereof. The bleach composition described.