JPH09286998A - Oxygen-type liquid bleaching agent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain an oxygen-type liquid bleaching agent composition having excellent storage stability at high or low temperature and exhibiting high bleaching power. SOLUTION: This bleaching agent composition contains (1) 1.0-10wt.% of hydrogen peroxide, (2) 0.01-10wt.% of an aromatic compound expressed by the formula [R<1> is an aromatic ring; M<1> is O or S; R<2> is SO3 M<2> (M<2> is H, an alkali metal or an alkaline earth metal), R<3> -OX or (R<4> O)n -X; R<3> is a 1-4C alkylene; R<4> is a 1-5C alkylene; X is H, an alkyl, an aryl, an acyl or SO3 M<2> (M<2> is H, an alkali metal or an alkaline earth metal); (n) is 1-15] and (3) 1.0-10wt.% of a carboxyl-containing linear polymer. The pH of the bleaching agent composition is 2-5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid oxygen bleaching composition, and more particularly to a liquid oxygen bleaching composition having excellent long-term storage stability at high or low temperatures and having good bleaching power.

[0002]

2. Description of the Related Art Oxygen-based bleaching agents have hitherto been widely accepted because they can be easily and safely used for a wide range of clothing including colored patterns. As the oxygen-based bleaching agent, a liquid-type product and a powder-type product are commercialized according to the form. Generally, liquid oxygen bleach contains hydrogen peroxide,
Decomposition of hydrogen peroxide is accelerated in the alkaline region, gas is generated, the container is deformed due to an increase in the internal pressure of the container, and the quality value of the bleaching agent is lost. Therefore, the liquid type bleach is generally adjusted to be acidic. However, although the decomposition of the bleach is suppressed,
Even in the acidic region, the stability of the bleaching agent is not sufficient when stored at high temperature. BACKGROUND ART Heretofore, studies have been earnestly made to improve the storage stability of a liquid bleach containing hydrogen peroxide. For example, Japanese Examined Patent Publication (Kokoku) No. 40-7774 discloses a storage-stable weakly acidic liquid bleach containing a combination of acidic sodium pyrophosphate, neutral sodium pyrophosphate and potassium pyrophosphate. Further, in JP-A-49-52784, alkylidene diphosphonic acid, ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid and nitrilotrimethylenephosphonic acid organic acid selected from soluble tin salt and ammonium salt pH is 0. A stable liquid bleach of 0.5 to 7 is disclosed. Further, JP-A-52-103386 discloses a hydrogen peroxide stabilizer comprising poly-α-hydroxyacrylic acid. Further, JP-A-55-108500 discloses a stable liquid bleaching agent having a pH of 1.8 to 5.5, in which an acid selected from organic acids, phosphoric acid and boric acid is mixed with a nitrogen compound. Has been done. Further, in JP-A-55-76161, a synergistic stabilizing effect is exhibited by blending poly-α-hydroxyacrylate in an alkaline hydrogen peroxide bleaching system using condensed phosphate as a stabilizer. Is disclosed. Further, JP-A-57-154457 discloses a stabilizing aid for a hydrogen peroxide bleaching agent, which comprises a copolymer of acrylic acid and an acrylic ester and / or polyerylene glycol methacrylate. There is. In addition, JP
-185797 discloses a hydrogen peroxide-based bleaching stabilizer in which a poly-α-hydroxyacrylic acid salt and an organic phosphonate are used in combination. Furthermore, as an acidic hydrogen peroxide-based bleaching composition with improved storage stability at high temperature, JP-A-3-
Japanese Patent No. 91597 discloses an example in which polyacrylic acid having a specific molecular weight or a salt thereof is blended in a specific surfactant system. Further, JP-A-3-188198 discloses an example in which a polyacrylic acid polymer and / or a maleic acid polymer having a specific molecular weight in a specific surfactant system and a specific phosphorus compound are blended. Further, JP-A-4-23897 discloses an example in which a nonionic surfactant, a carboxylic acid polymer and a specific organic phosphonic acid compound are combined. Further, JP-A-4-28797 discloses an example in which a polycarboxylic acid having a specific molecular weight or a salt thereof in a specific surfactant system and a specific water-soluble inorganic salt are mixed.

[0003]

However, the hydrogen peroxide type bleaching agent using these stabilizers has a problem that the storage stability at high temperature is not sufficient, or liquid separation or a precipitate is generated during low temperature storage. Occurred.

[0004]

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a liquid oxygen bleach composition which improves the storage stability of liquid oxygen bleach at high and low temperatures. As a result of intensive studies to solve the above problems, the present inventors have added hydrogen peroxide to a carboxyl group-containing linear polymer and a specific aromatic compound,
The inventors have found that the above-mentioned problems can be achieved and arrived at the present invention. That is, the present invention includes (1) hydrogen peroxide, 1 to 10% by weight, (2) aromatic compound represented by the following general formula (I), 0.01 to 10% by weight, R ¹ -M ^1- R ² (I) (In the formula, R ¹ is an aromatic ring, M ¹ is an oxygen atom or a sulfur atom, R ² is —SO ₃ M ² (M ² is a hydrogen atom, an alkali metal or Indicates an alkaline earth metal),
-R ³ -OX, or - _{^{(R 4 O) n -X,}} R
³ is an alkylene group having 1 to 4 carbon atoms, R ⁴ is an alkylene group having 1 to 5 carbon atoms, X is a hydrogen atom, an alkyl group, an aryl group, an acyl group or —SO ₃ M ² ( M
² represents a hydrogen atom, an alkali metal or an alkaline earth metal. ) And n is 1 to 15. ), And (3) a linear polymer containing a carboxyl group, 0.1 to 10
%, And has a pH in the range of 2 to 5. The present invention relates to a liquid oxygen-based bleaching composition.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below. In the present invention, hydrogen peroxide used as a bleaching base is added to the liquid oxygen bleaching composition in an amount of 1 to 10% by weight, preferably 2 to 7% by weight. The aromatic compound in the present invention is represented by the above (I). Here, in the formula, examples of the aromatic ring represented by R ¹ include a benzene ring and a naphthalene ring. These rings may have a substituent. Examples of such a substituent include a halogen atom (eg, chlorine atom, fluorine atom, bromine atom, etc.) and a lower alkyl group (eg, methyl group, ethyl group, propyl group, isopropyl group, butyl group, etc.) C1 to C4 alkyl group), hydroxyl group, amino group, substituted amino group (substituents include, for example, lower alkyl groups such as methyl group, ethyl group, propyl group, phenyl group, nitro group, etc. , Halogen atoms, hydroxyl groups, etc.), NH ₂ CO groups, acetyl groups, etc., as long as they do not adversely affect the effects of the aromatic compound of the present invention. The number of substituents can be selected within the range of 1 to 5. When the substituent is an alkyl group and the carbon number thereof exceeds 4, it becomes lipophilic and the aromatic compound acts as a nonionic surfactant, which is not suitable. .

M ¹ is an oxygen atom or a sulfur atom.
R ² is —SO ₃ M ² (M ² represents a hydrogen atom, an alkali metal or an alkaline earth metal), —R ³ —OX, or — (R ⁴ O) _n —X, and R ³ Is an alkylene group having 1 to 4 carbon atoms, R ⁴ is an alkylene group having 1 to 5 carbon atoms, X is a hydrogen atom, an alkyl group, an aryl group, an acyl group or —SO ₃ M ² (M ² represents a hydrogen atom, an alkali metal or an alkaline earth metal). Here, examples of the alkylene group as R ³ include a methylene group, an ethylene group, a propylene group, an isopropylene group, a butylene group, an i-butylene group, an s-butylene group, a t-butylene group, and the like. The preferred alkylene group has 1 to 3 carbon atoms. Examples of the alkylene group as R ⁴ include methylene group, ethylene group, propylene group, i-propylene group, butylene group, i-butylene group, s-butylene group, t-butylene group, pentylene group, i-pentylene group. Group, s-pentylene group, t-pentylene group and the like.
The preferred alkylene group has 1 to 4 carbon atoms. Preferred R ⁴ is ethylene or propylene.

N represents the number of moles of alkylene oxide added, and is 1 to 15, preferably 3 to 5. As a preferable aromatic compound, R ² is — (R ⁴ —O) _n.
Are shown. In particular, an alkyl ester of (thio) phenol, an alkylene oxide adduct and the like can be mentioned. The aromatic compound is 0.01 to 10% by weight based on the weight of the liquid oxygen bleaching composition, preferably
0.1 to 7% by weight, particularly preferably 1 to 5% by weight. The carboxyl group-containing linear polymer used in the present invention is a carboxyl group-containing linear polymer obtained by polymerizing or copolymerizing a monomer containing a carboxylic acid group or a salt thereof. The carboxyl group-containing linear polymer may have a free carboxylic acid group or may contain a salt thereof. Examples of the carboxylic acid group-containing monomer constituting the carboxyl group-containing linear polymer include (meth) acrylic acid, crotonic acid, isocrotonic acid, maleic acid, itaconic acid, or a mixture thereof. The carboxyl group-containing linear polymer may be a homopolymer of a carboxylic acid group-containing monomer or a copolymer of such a monomer and another copolymerizable comonomer.

Examples of the comonomer include (meth) acrylic acid esters (eg, methyl (meth) acrylate, ethyl, propyl, etc.), vinyl compounds (eg, ethyl acetate, hexafluoropropylene, etc.), polyolefins. (For example, butadiene etc.), allyl ether (for example, ethyl allyl ether etc.), and further, (meth) acrylamide, (meth) acrylonitrile and the like can be mentioned. When the carboxyl group-containing linear polymer is present as a salt, examples of the salt include, for example, alkali metals such as sodium and potassium, alkaline earth metals such as calcium and magnesium, and ammonium. Is mentioned. Specific preferred examples of the linear polymer containing a carboxyl group include, for example, poly (meth) acrylic acid or a salt or partially neutralized salt thereof,
Examples thereof include homopolymers of maleic acid or salts or partially neutralized salts thereof, maleic acid and (meth) acrylic acid and copolymers or salts thereof or partially neutralized salts thereof. The number average molecular weight of the carboxyl group-containing linear polymer is usually
Those in the range of 1000 to 200,000, preferably 2000 to 100,000 are suitable. This number average molecular weight is within this range,
The storage stability of the liquid oxygen bleaching composition is improved. In the case of a copolymer of maleic acid and a comonomer, the ratio of monomers used is, for example, maleic acid / monomer = 90 /
It is preferably in the range of 10-40 / 60. The number average molecular weight of the maleic acid polymer is 5,000 to 100,000, preferably
10,000 to 100,000 is preferable.

The linear polymer containing a carboxyl group is used in an amount of 0.1 to 10% by weight, preferably 1 to 5% by weight, based on the weight of the liquid oxygen bleaching composition. For hydrogen peroxide-based acidic liquid bleach,
Carbopol, which is often used as a thickener, has a large molecular weight (for example, a number average molecular weight of 1,000,000 to 500).
10,000) and is a partially crosslinked polyacrylic acid,
It is completely different from the non-crosslinked carboxyl group-containing linear polymer used in the present invention. The water used in the present invention is used in an amount of 70 to 99% by weight, based on the weight of the liquid oxygen bleach composition. The pH of the liquid oxygen bleaching composition of the present invention is 2-5, preferably 3.0.
It is set in the range of ~ 4.5. By maintaining the pH within this range, the storage stability of the liquid oxygen bleaching composition is significantly improved. The pH of such a liquid oxygen bleach composition
Can be adjusted using, for example, an inorganic acid such as hydrochloric acid or sulfuric acid or phosphoric acid, or an organic acid such as p-toluenesulfonic acid or citric acid. If necessary, sodium hydroxide, potassium hydroxide, sodium carbonate, sodium hydrogen carbonate, ammonia or the like may be used in combination as an alkaline component.

The liquid oxygen bleaching composition of the present invention comprises the above-mentioned components, but if necessary, ethanol, alcohols such as isopropanol and ethylene glycol, and hydrotropes such as polyethylene glycol and glycerin. , Various surfactants, bleach activators, thickeners, fragrances, dyes, fluorescent dyes, enzymes, phosphonic acid-based chelating agents, etc. Generally, there are no particular restrictions on the ingredients to be added to detergents for clothes and bleaching agents. , Can be appropriately blended.
The liquid oxygen bleach composition of the present invention, if necessary,
You may mix | blend organic phosphonic acid. Organic phosphonic acid is
It is a compound in which one or more phosphonic acid groups are bonded to an organic residue. The number of phosphonic acid groups is preferably 2-3. Also,
The phosphonic acid group may be incorporated in the form of a salt. Examples of the organic residue include an aliphatic hydrocarbon group and an aromatic hydrocarbon group. Preferable examples of the organic phosphonic acid include organic phosphonic acids represented by the following formula (III).

[0011]

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(In the formula, R ¹ and R ² independently represent a hydrogen atom, an alkyl group or an alkenyl group having 1 to 6 carbon atoms, or a hydroxyl group, and M ^{1 to} M ⁴ independently represent
Indicates a hydrogen atom or an alkali metal. The alkyl group having 1 to 6 carbon atoms in the above formula may be linear or branched. The preferred alkyl group has 1 to 3 carbon atoms. Specific examples of the alkyl group include, for example, methyl group, ethyl group, propyl group, i-propyl group, butyl group, i-butyl group, s-butyl group, t-butyl group, pentyl group, i-pentyl group. , S-pentyl group, t-pentyl group, hexyl group, i-hexyl group, s-hexyl group, t-hexyl group and the like. Carbon number 1
Examples of the alkenyl group of 6, preferably 1 to 3 include alkenyl groups corresponding to the above alkyl groups. These alkyl groups or alkenyl groups may have a substituent, and examples thereof include an alkyl group or alkenyl group having 1 to 5, preferably 1 to 3 carbon atoms, a hydroxyl group, a phosphonic acid group and the like. Examples of the alkali metal in the above formula include alkali metals such as sodium, potassium and lithium.

Examples of preferable organic phosphonic acid include, for example, 1-hydroxyethylidene-1,1-diphosphonic acid, ethane-1,1-diphosphonic acid, ethane-1,1,
2-Triphosphonic acid, ethane-1-hydroxy-1,1
-Diphosphonates, or their salts. The organic phosphonic acid is usually added in an amount of 0.05 to 5% by weight, preferably 0.1 to 3% by weight, based on the weight of the liquid oxygen-based bleaching agent composition. Within this range, the detergency of the liquid oxygen bleaching composition can be improved. For example, examples of such a surfactant include a nonionic surfactant and an anionic surfactant. Examples of nonionic surfactants include polyoxyalkylene alkyl or alkenyl ethers, polyoxyethylene alkylphenyl ethers, higher fatty acid alkanolamides or their alkylene oxide adducts, sucrose fatty acid esters, alkyl polyglucosides, fatty acid glycerin monoesters, alkylamines. Examples thereof include oxides, sorbitan fatty acid esters, and ethylene oxide adducts thereof.

As the nonionic surfactant, a nonionic surfactant represented by the following formula (IV) can be preferably used. R ₁ -O- (CH ₂ CH ₂ O) _n -H (IV) (In the formula, R ¹ represents an aromatic ring or an alkyl group or an alkenyl group having 7 to 20 carbon atoms, preferably 10 to 15 carbon atoms. And n represents the average number of moles of ethylene oxide (EO) added.) In the above formula, examples of the aromatic ring include a phenyl group and
And a naphthyl group. These aromatic rings may have a substituent, and as the substituent, for example, an alkyl group having 8 to 20 carbon atoms, preferably 8 to 15 carbon atoms, for example,
Examples thereof include an octyl group and a nonyl group. The alkyl group or alkenyl group may be linear or branched. Specific examples of the alkyl group include a hexyl group, an octyl group, a nonyl group, a decyl group, an undecyl group, a dodecyl group, and a tridecyl group. Also,
Examples of the alkenyl group include a hexenyl group, an octenyl group, a nonenyl group, a decenyl group, an undecenyl group,
Examples thereof include dodecenyl group and tridecenyl group. R ₁ can be used as a mixture. For example, ethylene oxide may be added to two or more alcohols.

The average number of added moles of ethylene oxide (EO) is suitably 7 to 15, preferably 8 to 15. The nonionic surfactant may contain a propylene oxide (PO) block, if necessary.
The number of moles of repeating units of this block portion is, for example, about 1 to 3 is suitable. Nonionic surfactants are typically added based on the weight of the liquid oxygen bleach composition.
It is used in an amount of 0.5 to 20% by weight, preferably 1 to 10% by weight. Within this range, preferable detergency can be obtained without adversely affecting the bleaching action of the liquid oxygen bleaching agent composition. Further, an anionic surfactant can be used in combination as the surfactant. The anionic surfactant contributes to the improvement of the stability of hydrogen peroxide when added to the liquid oxygen bleaching composition. The blending amount is 0.1-0.1 based on the weight of the liquid oxygen bleaching composition.
It is used in an amount of 30% by weight, preferably 1-10% by weight. Examples of such an anionic surfactant include, for example, alkylbenzene sulfonate, alkyl or alkenyl ether sulfate, α-olefin sulfonate, α-sulfo fatty acid salt or ester salt, alkyl or alkenyl ether carboxylic acid. Examples thereof include salts, alkyl or alkenyl fatty acid salts.

The liquid oxygen bleaching composition of the present invention is produced by blending hydrogen peroxide, an aromatic compound, a carboxyl group-containing linear polymer and water, and various components to be blended as necessary. can do.

[0017]

The present invention will be described in more detail with reference to Examples and Comparative Examples, but the scope of the present invention is not limited by these Examples and Comparative Examples. Examples 1 to 37 and Comparative Examples 1 to 6 Liquid oxygen bleach compositions were produced according to the formulations shown in Table 1 below. The characteristics of the obtained liquid oxygen-based bleaching agent composition were measured for the following items. (1) Amount of gas generated The liquid oxygen-based bleaching composition obtained was filled with 500 ml of a 500 ml Erlenmeyer flask with a stopper and a stopper, and a glass tube with a stopper (above the stopper). The length was 100 cm, the length under the pickpocket was 15 cm, and the inner diameter was 5 mm.), And then allowed to stand for 1 week at 50 ° C. The amount was evaluated. (2) Liquid Phase Stability The obtained liquid oxygen bleaching agent composition was filled in a glass sample bottle having a volume of 20 mL and stored at -5 ° C for 2 weeks. The appearance of the liquid was visually evaluated according to the following criteria.

○ Liquid is uniform and does not cause turbidity, etc. △ Liquid is separated and causes slight turbidity × Liquid is separated and precipitates are generated (3) Bleaching rate Contaminated cloth prepared as described below 1 mL of the obtained liquid oxygen-based bleaching agent composition was applied onto 5 pieces of (black tea-contaminated cloth), and then a standard detergent concentration (667 ppm) of a commercially available detergent solution (enzyme top: manufactured by Lion Corporation) (solution temperature 20 After stirring for 10 minutes using a tergotometer in water (° C), it was rinsed with tap water and dried, and the bleaching rate was calculated by the following formula. Bleaching effect = (Reflectivity of bleached cloth-Reflectance of contaminated cloth) /
(Reflectance of untreated cloth−Reflectance of contaminated cloth) × 100 (%) The reflectivity was measured using a Z-Σ80 colorimetric color difference meter manufactured by Nippon Denshoku Co., Ltd. Black tea-contaminated cloth 80 g of Nitto black tea (yellow package) was boiled in 3 L of ion-exchanged water for 15 minutes, then rubbed with desized smooth cotton, and a plain-woven cotton cloth (# 100) was dipped in this liquid and boiled for 15 minutes. It was removed from the heat as it was, left to stand for 2 hours, naturally dried, washed with water until the washing liquid was not colored, dehydrated and pressed, and then a test piece of 8 × 8 cm was prepared and used for the experiment.

The above results are also shown in Table 1.

[0020]

[Table 1] Table 1 Example 1 2 3 4 5 6 7 Composition of liquid oxygen bleach composition (% by weight) Hydrogen peroxide 5 5 5 5 5 5 5 Aromatic compound Phenoxyethanol 1 2 3 5 3 3 Phenol ( EO) n ^{* 1)} 1 Carboxyl group-containing linear polymer Polyacrylic acid ^{* 2)} 1 3 5 1 Sodium polyacrylate ^{* 3)} 3 Maleic acid / acrylic acid 3 copolymer ^{* 4)} Sodium polymaleate ^{* 5)} 3 Other ingredients Polyethylene glycol ^{* 6)} 2 2 2 Perfume 0.1 0.1 0.1 0.1 Acid dye ^{* 7)} (PPM) 2 2 2 Ion-exchanged water Bla * ^{* 8)} la Bla Bla Bla Bla Bla Liquid oxygen bleach composition Characteristic pH 3.5 4.0 4.0 4.0 3.5 3.0 4.0 Amount of gas generated (cm) 10 11 12 9 14 13 8 Liquid phase stability ○ ○ ○ ○ ○ ○ ○ Bleach rate (%) 32 36 40 37 37 34 32 Note) 1) Phenol Ethylene oxide adduct (average number of moles added: 3) 2) Average molecular weight: 20000 (trade name: Julimer AC10L (manufactured by Nippon Pure Chemical Co., Ltd.)) 3) Flat Average molecular weight: 30000 (trade name "Sokalan PA50" (manufactured by BASF) 4) Average molecular weight: 50000 (trade name "Sokaran CP7" (manufactured by BASF)) 5) Average molecular weight: 10000 6) Polyethylene glycol: average molecular weight 1000 7) CI Acid Green 27 8) Means the remaining amount.

[0021]

[Table 2] Table 1 (continued) Example 8 9 10 11 12 13 14 Composition of liquid oxygen bleach composition (% by weight) Hydrogen peroxide 5 5 5 5 5 5 5 Aromatic compound Phenoxyethanol 1 Phenol (EO) _n ^{* 1)} 2 3 Phenol (EO) _n ^{* 9)} 3 3 Phenol (PO) _n ^{* 10)} 3 3 p-Cresol (EO) _n ^{* 11)} 3 Carboxyl group-containing linear polymer Polyacrylic acid ^{* 2)} 3 3 Sodium polyacrylate ^{* 3)} 3 3 Maleic acid / acrylic acid 3 3 copolymer ^{* 4)} Sodium polymaleate ^{* 5)} 3 Other ingredients Polyethylene glycol ^{* 6)} 1 2 Perfume 0.1 0.1 Acid dye ^{* 7)} ( PPM) 2 Ion-exchanged water Bla Bla Bla Bla Bla Bla Bla Characteristics of liquid oxygen bleach composition pH 4.0 4.0 4.0 4.0 4.0 4.0 4.0 Gas generation amount (cm) 8 9 10 7 11 10 12 Liquid phase stability ○ ○ ○ ○ ○ ○ ○ Bleaching rate (%) 36 35 37 34 36 36 37 Note) 9) Phenol ethylene oxide adduct (average number of moles added: 10) 1 0) Propylene oxide adduct of phenol (average number of moles added 3) 11) Ethylene oxide adduct of p-cresol (average number of moles added 3)

[0022]

[Table 3] Table 1 (continued) Example 15 16 17 18 19 20 21 Composition of liquid oxygen bleach composition (wt%) Hydrogen peroxide 5 5 5 5 5 5 5 Aromatic compound Phenoxyethanol 1 2 3 2 Phenol (EO) _n ^{* 1)} 2 Phenol (EO) _n ^{* 9)} 2 Phenol (PO) _n ^{* 10)} 2 Carboxyl group-containing linear polymer Polyacrylic acid ^{* 2)} 3 2 2 3 Sodium polyacrylate ^{* 3)} 2 2 2 Other components AOS ^{* 12)} 2 2 2 2 2 AES ^{* 13)} 2 2 Polyethylene glycol ^{* 6)} 2 2 Perfume 0.1 0.1 0.1 Acid dye ^{* 7)} (PPM) 2 2 2 Ion-exchanged water Bla Bla Bla Bla Bla Bla Bla Bla Characteristics of liquid oxygen bleach composition pH 4.0 4.0 4.0 4.0 4.0 4.0 4.0 Gas generation rate (cm) 4 5 6 4 6 7 7 Liquid phase stability ○ ○ ○ ○ ○ ○ ○ Bleach rate (%) 35 33 35 36 37 38 35 Note) 12) of 12 to 14 carbon atoms α- sodium olefin sulfonate 13) alkyl group having a carbon number of 14 to 16 ethylene Oki site average addition mode Number 7 Sodium polyoxyethylene alkyl ether sulfate

[0023]

[Table 4] Table 1 (continued) Comparative Example 1 2 3 Composition of liquid oxygen bleach composition (% by weight) Hydrogen peroxide 5 5 5 Aromatic compound Phenoxyethanol 1 Carboxyl group-containing linear polymer Polyacrylic acid ^{* 2 )} 3 Other ingredients Polyethylene glycol ^{* 6)} 2 Perfume 0.1 0.1 Acid dye ^{* 7)} (PPM) 2 Ion-exchanged water Bla Bla Bla Characteristics of liquid oxygen bleach composition pH 4.0 4.0 4.0 Gas generation rate (cm) 70 43 52 Liquid phase stability × ○ ○ Bleach rate (%) 34 17 16

[0024]

[Table 5] Table 1 (continued) Examples22 23 24 25 26 27 28 Composition of liquid oxygen bleach composition (wt%) Hydrogen peroxide 5 5 5 5 5 5 5 Aromatic compounds Phenoxyethanol 1 2 3 5 3 3 3 Carboxyl group-containing linear polymer Polyacrylic acid^{* 2)} 1 3 5 3 Sodium polyacrylate^{* 3)} 3 Maleic acid / acrylic acid 3 copolymer^*Four) Sodium polymaleate ^{* 5)} 3 Organic phosphonic acid Ethane-1-hydroxy 0.1 0.1 0.1 0.5 0.5 0.1 0.1 -1,1-diphosphonic acid Other ingredients AOS^{* 12)} 3 3 2 Perfume 0.1 0.1 0.1 0.1 Acid dye^{* 7)}(PPM) 2 2 2Ion exchange water Bla Bla Bla Bla Bla Bla Bla Bla Characteristics of liquid oxygen bleach composition pH 3.5 4.0 4.0 4.0 3.5 3.0 4.0 Liquid phase stability ○ ○ ○ ○ ○ ○ ○ Gas generation 8 9 8 6 7 8 5Bleaching rate (%) 33 37 37 42 39 37 39

[0025]

[Table 6] Table 1 (continued) Example Comparative Example29 30 31 32 4 5 6 Composition of liquid oxygen bleach composition (wt%) Hydrogen peroxide 5 5 5 5 5 5 5 Aromatic compounds Phenoxyethanol 12 Phenol (EO)_n ^{* 1)} 2 Phenol (EO)_n ^{* 9)} 3 Phenol (PO)_n ^*Ten) Threep-cresol (EO) _n ^{* 11)} 3 Carboxyl group-containing linear polymer Polyacrylic acid^{* 2)} 3 1 3Sodium polyacrylate ^{* 3)} 3 3 Organic phosphonic acid Ethane-1-hydroxy 0.1 3 0.5-1,1-diphosphonic acid ethane-1,1,2 0.1 0.1 0.1 -Triphosphonic acid Other ingredients AOS^{* 12)} 2 Perfume 0.1 0.1 Acid dye^{* 7)}(PPM) 2Ion exchange water Bla Bla Bla Bla Bla Bla Bla Bla Characteristics of liquid oxygen bleach composition pH 4.0 4.0 4.0 4.0 4.0 4.0 4.0 Liquid phase stability ○ ○ ○ ○ △ × ○ Gas generation 6 5 7 8 70 15 21Bleaching rate (%) 37 41 37 37 36 19 18

[0026]

[Table 7] Table 1 (continued) Example 33 34 35 36 37 Composition of liquid oxygen bleach composition (% by weight) Hydrogen peroxide 5 5 5 5 5 Aromatic compound Phenoxyethanol 3 3 Phenol (EO) _n ^{* 9 )} 3 Phenol (EO) _n ^{* 10)} 3 p-cresol (EO) _n ^{* 11)} 3 Carboxyl group-containing linear polymer Polyacrylic acid ^{* 2)} 3 2 Sodium polyacrylate ^{* 3)} 2 3 Maleic acid / acrylic Acid 3 copolymer ^{* 4)} Nonionic surfactant Polyoxyethylene 32 2 alkyl ether ^{* 14)} Polyoxyethylene 32 nonyl phenyl ether ^{* 15)} Other ingredients Perfume 0.1 0.1 Acid dye ^{* 7)} (PPM) 2 2 Ion-exchanged water Bla Bla Bla Bla Bla Characteristics of liquid oxygen bleach composition pH 4.0 4.0 4.0 4.0 3.5 Gas generation amount (cm) 3.0 4.0 4.5 3.5 5.0 Liquid phase stability ○ ○ ○ ○ ○ Bleach rate (%) 38 37 38 37 38 Note) 14) The number of carbon atoms in the alkyl group is 12 to 14, The added mole number of the id is 12 moles.

15) The number of moles of ethylene oxide added is
10 moles.

[0028]

INDUSTRIAL APPLICABILITY The liquid oxygen bleaching composition of the present invention exhibits a good bleaching power for all stain stains to be bleached, and has storage stability at low temperature and high temperature, especially peroxide at high temperature. It has excellent hydrogen stability and liquid phase stability at low temperatures.

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Kazuaki Fukano 1-3-7 Main Office, Sumida-ku, Tokyo Inside Lion Corporation

Claims (1)

[Claims] (1) Hydrogen peroxide, 1 to 10% by weight,
(2) an aromatic compound represented by the following general formula (I),
01 to 10% by weight, R ¹ -M ¹ -R ² (I) (In the formula, R ¹ is an aromatic ring, M ¹ is an oxygen atom or a sulfur atom, and R ² is -SO ₃ M. ² (M ² represents a hydrogen atom, an alkali metal or an alkaline earth metal),
-R ³ -OX, or - _{^{(R 4 O) n -X,}} R
³ is an alkylene group having 1 to 4 carbon atoms, R ⁴ is an alkylene group having 1 to 5 carbon atoms, X is a hydrogen atom, an alkyl group, an aryl group, an acyl group or —SO ₃ M ² ( M
² represents a hydrogen atom, an alkali metal or an alkaline earth metal. ) And n is 1 to 15. ), And (3) a linear polymer containing a carboxyl group, 0.1 to 10
%, And has a pH in the range of 2 to 5. A liquid oxygen bleaching composition.