JPH09100492A - Liquid bleaching agent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a liquid bleaching agent composition excellent in preservation stability and expressing strong bleaching effects by effectively generating a peracid during cleaning by combining specific surfactants, hydrogen peroxide, a specific organic peracid precursor, water with an auxiliary solubilizing agent and a specific chelate. SOLUTION: This liquid bleaching agent composition comprises (A) a surfactant (A1 ) of a compound, etc. expressed by formula I [R1 is an 8-18C (branched) alkyl or alkenyl; (n) is 2-30] and a surfactant (A2 ) of a compound, etc. expressed by formula II (R2 is R1 ), (B) hydrogen peroxide, (C) a compound of formula III [R3 is a 7-12C straight chain alkyl; Z is an alkali metal (M1 ) or a group expressed by the formula: COOM (M is H or M1 ), etc.], (D) water (D1 ) and an auxiliary solubilizing agent (D2 ) and (E) a phosphonic acid-based chelating agent. The composition comprises 5-30wt.% ingredient (A), 0.5-10wt.% (B), 0.1-10wt.% (C), 0-5wt.% (E) and rest wt.% of (D). The weight ratios of A1 /B1 and D1 /D2 are (1000/1)-(10/1) and (1/0)-(1/10), respectively and the pH of the solution is regulated to 2.5-4.5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a liquid containing an organic peracid precursor which is excellent in storage stability and has a higher bleaching performance by efficiently generating an organic peracid from the organic peracid precursor. It relates to an oxygen-based bleaching agent.

[0002]

2. Description of the Related Art Oxygen-based bleaching agents have the characteristics that they can be used for colors and patterns, and have become the mainstream of bleaching agents for clothing. On the other hand, it is inferior to chlorine-based bleaching agents in terms of bleaching power, and much research has been conducted on improving the bleaching power of oxygen-based bleaching agents. One approach is to use an organic peracid precursor. This organic peracid precursor reacts with hydrogen peroxide in the cleaning liquid to produce an organic peracid having a higher bleaching power. As a peroxide that generates hydrogen peroxide in the cleaning solution used here, powder-type bleaching agents, or heavy detergents having bleaching performance, sodium percarbonate, sodium perborate, etc. are used. Uses hydrogen peroxide. Examples of organic peracid precursors include tetraacetylethylenediamine (TAED), glucose pentaacetate (PAG), and phenol derivative alkyl ester.

Since these organic peracid precursors have an ester bond, an amide bond, an imide bond, etc. in the structure, they are generally unstable to water and hydrogen peroxide, and have a hydrolysis reaction. Decomposes by hydrogen peroxide decomposition reaction and loses its activity as an organic peracid precursor. Therefore, in order to incorporate the organic peracid precursor into the liquid bleach composition, it is necessary to suppress hydrolysis and decomposition of hydrogen peroxide.

As a solution to this, use of a micelle reaction field can be considered. It has been reported that in a micelle reaction field, the incorporation of a compound having an ester bond causes a change in the hydrolysis rate (Ogaki Kazuichiro Kagaku and Kogyo, p47 (1988)). By utilizing the control of the rate of the decomposition reaction by the surfactant, it is possible to suppress the decomposition of the organic peracid precursor in the solution, and a technique which actually applied this phenomenon is disclosed in Japanese Patent Laid-Open No. 4-2.
No. 07196. However, the system that suppresses the decomposition of the organic peracid precursor in the solution, on the other hand, also suppresses the reaction rate of the organic peracid generation in the cleaning liquid, reducing the organic peracid generation efficiency and achieving a satisfactory bleaching power. There is a problem that you can not get.

[0005]

Accordingly, an object of the present invention is to provide a liquid bleaching composition which is excellent in storage stability and which highly efficiently produces an organic peracid during washing and exhibits a high bleaching effect. It is to be.

[0006]

Means for Solving the Problems As a result of intensive studies for solving the problems, the present inventors have found that a specific organic peracid precursor is mixed with an aqueous solution of a mixture according to a specific ratio of surfactants consisting of specific two groups. It has been found that the above problems can be solved by realizing high storage stability and high organic peracid production efficiency by dissolving in the solution.

That is, the present invention comprises one or more surfactants selected from the following group (a) and one or more surfactants selected from the group (b): (A)
The weight ratio of the group to the group (b) is 1000/1 to 10/1, and the total of (a) + (b) is 5 to 30% by weight in the composition, and the groups (c) and (d), Each component of the (e) group and the (f) group has the content described below, and the pH of the solution is 2.5 to
It is a liquid bleaching composition characterized by being 4.5. Group (a): Formula (I), (II) or (III) of Chemical formula 4
The surfactant represented by.

[0008]

Embedded image (In the general formulas I, II, and III, R ₁ represents a linear or branched alkyl group having 8 to 18 carbon atoms, an alkenyl group, or a mixture thereof; n represents the number of moles of ethylene oxide added; It takes a value of 30.)

Group (b): Formulas (IV), (V), and
A surfactant selected from (VI) or (VII), and a linear alkylbenzene sulfonate (LAS), α-olefin sulfonate (AOS) or polyoxyethylene alkyl or alkenyl ether sulfate ester salt (AES). Surfactants.

[0010]

Embedded image (In the general formulas IV, V, VI and VII, R ₂ represents a linear or branched alkyl group having 8 to 18 carbon atoms or an alkenyl group.
lu) n is a molecule in which n glucose molecular units are linked by bonds at 1, 4 or 1, 6 positions. n takes a value of 1 to 10. (Glu-OMe) represents methyl glucoside and has an ester bond at the 6-position. )

Group (c): Hydrogen peroxide 0.5 to 10% by weight. Group (d): 0.1 to 10% by weight in the composition of the organic peracid precursor represented by the general formula (VIII) of Chemical formula 6.

[0012]

Embedded image R ₃ COO—C ₆ H ₄ —Z Formula (VIII) (wherein R ₃ is a linear alkyl group having a carbon chain length of 7 to 12, Z is —COOH, —COOM, —SO ₃ H, -SO ₃ M, M
Indicates an alkali metal)

Group (e): The balance of the mixture composition containing water and a solubilizing agent in a weight ratio of water / solubilizing agent = 1/0 to 1/10. Group (f): Phosphonic acid type chelating agent 0 to 5% by weight.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION The components of each group will be described in detail below. The surfactant shown in the group (a) of the present invention is a surfactant represented by the following general formula (I), general formula (II) or general formula (III). .

[0015]

Embedded image R ₁ —O— (CH ₂ CH ₂ O) n—H General Formula (I) The surfactant of the general formula (I) is a nonionic surfactant obtained by adding ethylene oxide to alcohol, and R ₁ Represents a linear or branched alkyl group having 8 to 18 carbon atoms, an alkenyl group, or a mixture thereof. Further, n represents the number of moles of ethylene oxide added, and takes a value of 4 to 30.
As some examples, the compounds shown in the following chemical formula 8 can be enumerated.

[0016]

Embedded image C ₈ H ₁₇ O (CH ₂ CH ₂ O) ₅ HC ₁₃ H ₂₇ O (CH ₂ CH ₂ O) ₈ HC ₁₀ H ₂₁ O (CH ₂ CH ₂ O) ₇ HC ₁₃ H ₂₇ O (CH ₂ CH ₂ O) ₉ HC ₁₂ H ₂₅ O (CH ₂ CH ₂ O) ₉ HC ₁₃ H ₂₇ O (CH ₂ CH ₂ O) ₁₂ HC ₁₂ H ₂₅ O (CH ₂ CH ₂ O) ₁₂ HC ₁₃ H ₂₇ O (CH ₂ CH ₂ O) ₂₀ HC ₁₂ H ₂₅ O (CH ₂ CH ₂ O) ₂₀ HC ₁₃ H ₃₈ O (CH ₂ CH ₂ O) ₃₀ HC ₁₂ H ₂₅ O (CH ₂ CH ₂ O) ₃₀ HC ₁₄ H ₂₉ O (CH ₂ CH ₂ O) ₃₀ HC ₁₃ H ₂₇ O (CH ₂ CH ₂ O) ₅ HC ₁₆ H ₃₃ O (CH ₂ CH ₂ O) ₁₅ HC ₁₃ H ₂₇ O (CH ₂ CH ₂ O) ₇ HC ₁₈ H ₃₇ O (CH ₂ CH ₂ O) ₂₀ H

The surfactants of general formula (II) of group (a) are
This is as shown in Chemical Formula 9 below.

Embedded image R ₁ —C ₄ H ₄ —O— (CH ₂ CH ₂ O) n—H Formula (II) The surfactant represented by Formula (II) is a nonionic surfactant obtained by adding ethylene oxide to alkylphenol. With agent, R
₁ represents a straight-chain or branched alkyl group having 8 to 18 carbon atoms, an alkenyl group, or a mixture thereof, and n represents the number of moles of ethylene oxide added and takes a value of 4 to 30.
As some examples, the compounds shown in the following chemical formula 10 can be listed.

[0018]

Embedded image _{C 8 H 17 -C 6 H 4} -O- (CH 2 CH 2 O) 6 H C 8 H 17 -C 6 H 4 -O- (CH 2 CH 2 O) 10 H C 9 H 19 _{-C 6 H 4 -O- (CH 2} CH 2 O) 2 H C 9 H 19 -C 6 H 4 -O- (CH 2 CH 2 O) 5 H C 9 H 19 -C 6 H 4 -O- _{(CH 2 CH 2 O) 8} H C 9 H 19 -C 6 H 4 -O- (CH 2 CH 2 O) 10 H C 9 H 19 -C 6 H 4 -O- (CH 2 CH 2 O) 12 _{H C 9 H 19 -C 6 H} 4 -O- (CH 2 CH 2 O) 15 H C 9 H 19 -C 6 H 4 -O- (CH 2 CH 2 O) 20 H C 9 H 19 -C 6 _{H 4 -O- (CH 2 CH 2} O) 30 H C 10 H 21 -C 6 H 4 -O- (CH 2 CH 2 O) 12 H C 10 H 21 -C 6 H 4 -O- (CH 2 _{CH 2 O) 15 H C 12} H 25 -C 6 H 4 -O- (CH 2 CH 2 O) 20 H C 14 H 29 -C 6 H 4 -O- (CH 2 _{CH 2 O) 30 H C 18} H 37 -C 6 H 4 -O- (CH 2 CH 2 O) 30 H

The surfactant of the general formula (III) of the group (a) is as shown in the following chemical formula 11.

Embedded image The surfactant represented by the general formula (III) is an amphoteric surfactant having an alkylsulfobetaine structure, and R ₁ has 8 to ₁ carbon atoms.
8 represents a straight-chain or branched alkyl group, an alkenyl group, or a mixture thereof.
The compounds shown in can be listed.

[0020]

Embedded image

The surfactants represented by the group (b) of the present invention are represented by the following general formula (I), (14), (16) or (17)
V), the general formula (V), the general formula (VI), the surfactant represented by the general formula (VII), or LAS, AOS or A
It is ES. Details will be described below. The surfactant represented by the general formula (IV) in the group (b) is as shown in Chemical Formula 13 below.

[0022]

Embedded image The surfactant of the general formula (IV) is an alkylamine oxai
A series of compounds having a_TwoHas 8 to 18 carbon atoms
A linear or branched alkyl group, alkenyl group, or
These are mixtures.

As some examples, N, N-dimethyloctylamine oxide, N, N-dimethylnonylamine oxide, N, N-dimethyldecylamine oxide,
N, N-dimethyllaurylamine oxide, N, N-
Examples thereof include dimethylmyristylamine oxide, N, N-dimethylpalmitylamine oxide and N, N-dimethylstearylamine oxide.

The surfactant represented by the general formula (V) in the group (b) is as shown in Chemical formula 14 below.

Embedded image The surfactant represented by the general formula (V) is an amphoteric surfactant having an alkylcarbobetaine structure, and R ₂ has 8 to 18 carbon atoms.
Is a linear or branched alkyl group, alkenyl group, or a mixture thereof. As some examples, the compounds shown in Chemical formula 15 below can be listed.

[0025]

Embedded image

The surfactant represented by the general formula (VI) in the group (b) is as shown in Chemical formula 16 below.

Embedded image R ₂ O (glu) n general formula (VI) The surfactant of general formula (VI) is an alkyl polyglucoside, R ₂ is a linear or branched alkyl group having 8 to 18 carbon atoms, An alkenyl group, or a mixture thereof.
n represents the number of condensation of glucose, 1 to 10, or
It is a mixture of these. Condensation of glucose is carried out at the 1-position and 4-position of glucose, or at the 1-position and 6-position, and in the alkyl polyglucoside of the present invention, 1, 4-position and 1,
Either a single product or a mixture of 6th place may be used.

The surfactant represented by the general formula (VII) in the group (b) is as shown in Chemical formula 17 below.

Embedded image R ₂ COO- (glu-OMe) General formula (VII) The surfactant of general formula (VII) represents a methyl glucoside alkyl ester, wherein (glu-OMe) represents methyl glucoside, and R ₂ is a linear or branched alkyl group having 8 to 18 carbon atoms, an alkenyl group, or a mixture thereof. Examples of these include methyl glucoside octyl ester, methyl glucoside nonyl ester, methyl glucoside decyl ester, methyl glucoside lauryl ester, methyl glucoside myristyl ester, methyl glucoside palmityl ester, and methyl glucoside stearyl ester.

The surfactant of group (b) is L
AS, AOS, AES are used. For LAS,
A linear alkylbenzene sulfonate having an alkyl group having 10 to 16 carbon atoms is preferably used. As AOS,
An α-olefin sulfonate having 10 to 16 carbon atoms is preferably used. As AES, a polyoxyethylene alkyl or alkenyl ether sulfate having an alkyl group or an alkenyl group having 12 to 18 carbon atoms and an average number of moles of added polyoxyethylene of 2 to 10 is used. L
As the salt in AS, AOS, AES, a water-soluble salt such as an alkali metal such as a sodium salt or a potassium salt is used.

The surfactant compounded in the liquid oxygen bleach in the present invention is selected from the groups (a) and (b),
(A) / activator of group (a) and activator of group (b)
(B) The mixture is used so that it becomes 1000/1 to 10/1. By using the surfactants of the groups (a) and (b) in this mixing ratio, it is possible to maintain high stability in the composition of the organic peracid precursor, and efficiently use hydrogen peroxide during cleaning and use. Reacts to generate organic peracid. This ratio is preferably (a) / (b) 100/1 to 10/1, and more preferably (a) / (b) 50/1 to 10/1.

In the bleaching composition of the present invention, the activators of groups (a) and (b) are contained in the composition in an amount of 5 to 30% by weight, preferably 10 to 25% by weight. The present invention contains 0.5 to 10% by weight of hydrogen peroxide as the group (c). The organic peracid precursor of group (d) of the present invention is an organic peracid precursor having a phenol ester structure in the molecule represented by the following general formula (VIII) of Chemical formula 18.

[0031]

Embedded image R ₃ COO—C ₆ H ₄ —Z Formula (VIII) (wherein R ₃ is a linear alkyl group having a carbon chain length of 7 to 12, Z is —COOH, —COOM, —SO ₃ H, -SO ₃ M, M
Is an alkali metal) Specific examples of the organic peracid precursor of the group (d) of the present invention are shown in Chemical formula 19 below.

[0032]

Embedded image C ₇ H ₁₅ COO-C ₆ H ₄ -SO ₃ Na C ₇ H ₁₅ COO-C ₆ H ₄ -COOH C ₈ H ₁₇ COO-C ₆ H ₄ -SO ₃ Na C ₈ H ₁₇ COO- _{C 6 H 4 -COOH C 9 H} 19 COO-C 6 H 4 -SO 3 Na C 9 H 19 COO-C 6 H 4 -COOH C 11 H 23 COO-C 6 H 4 -SO 3 Na C 11 H 23 COO−C ₆ H ₄ −COOH

The organic peracid precursor of the component (d) is 0.1 to 10% by weight, more preferably 1 to 5% by weight in the composition.
Be blended. Further, (c) group component hydrogen peroxide and (d)
The molar ratio of the organic peracid precursor as a group component is (c) / (d)
It is desirable to mix them so that = 2 or more.

In the present invention, as the group (e), a mixture of water and a solubilizing agent in a weight ratio of water / solubilizing agent = 1/0 to 1/10 is used. Is used to balance the composition of the composition. Addition of a solubilizer further improves the stability of the organic peracid precursor during storage. Examples of the solubilizing agent include ethylene glycol, polyethylene glycol, propylene glycol, hexylene glycol, glycerin, polyglycerin, sorbitol, ethylcarbitol, glucose, ethanol and the like. Polyethylene glycol has a molecular weight of 20
It is desirable to use one of 0 to 10,000, and more preferably 400 to 6000.

Examples of the phosphinic acid type chelating agent of the present invention (f) include ethane-1,1-diphosphonic acid and ethane-
1,1,2-triphosphonic acid, ethane-1-hydroxy-1,1-diphosphonic acid and their derivatives can be used.

In the present invention, the stability of the organic peracid precursor can be further increased by incorporating the chelating agent of group (f). The phosphonic oxygen chelating agent of group (f) is 0 to 5% by weight, preferably 0.1% by weight in the composition of the present invention.
It is blended in an amount of 1 to 3% by weight. As the other chelating agent, a carboxylic acid polymer builder or the like can be used.
Examples of the carboxylic acid polymer builder include polyacrylic acid, polymaleic acid, acrylic acid, and maleic acid copolymer. Other examples include phosphinocarboxylic acid, phosphonocarboxylic acid, ethylenediaminetetraacetic acid, citric acid, lactic acid, tartaric acid, malic acid and the like.

Optional components can be further added to the liquid bleaching composition of the present invention. For example, a known substance as a discoloration / fading inhibitor can be included. Examples include a series of amino acid compounds, amine compounds, amine salts, amino alcohols and the like. Further, the liquid bleaching composition of the present invention can be blended with a proper amount of additives such as colorants such as dyes and pigments, fragrances, ultraviolet absorbers, inorganic electrolytes and enzymes. The liquid bleaching composition of the present invention has a pH of 4.5 or less, preferably 4 or less, more preferably 3.5.
It is desirable to make the following. The pH is adjusted using an inorganic acid such as sulfuric acid, hydrochloric acid or phosphoric acid, an organic acid such as toluenesulfonic acid or benzenesulfonic acid, or a caustic alkali such as sodium hydroxide or potassium hydroxide.

[0038]

According to the present invention, stability is excellent and at the same time,
A liquid bleaching composition having high bleaching performance can be obtained by effectively generating peracid from the blended organic peracid precursor.

[0039]

【Example】

(1) The components of each group used in the examples are shown in Tables 1-5.

[0040]

[Table 1]

[0041]

[Table 2] * 1) GLUCOPON 600 (manufactured by Henkel) * 2) Methyl glucoside fatty acid ester (carbon chain length of fatty acid 12 to 14) * 3) Linear alkylbenzenesulfonate sodium having 12 to 14 carbon atoms in the alkyl group * 4) Number of carbon atoms 14 to 16 sodium α-olefin sulfonate * 5) Sodium polyoxyethylene alkyl ether sulfate having 12 to 14 carbon atoms in the alkyl group and 7 average addition moles of ethylene oxide

[0042]

[Table 3] Table 3: (c) Group c-1 hydrogen peroxide

[0043]

Table 4 Table 4: (d) a group organic peracid precursor _{d-1 C 7 H 15 COO} -C 6 H 4 -SO 3 Na d-2 C 11 H 23 COO-C 6 H 4 -SO 3 Na _{d-3 C 7 H 15 COO} -C 6 H 4 -COOH d-4 C 11 H 23 COO-C 6 H 4 -COOH

[0044]

[Table 5] Table 5: (e) Group e-1 Water e-2 Polyethylene glycol (molecular weight 600) e-3 Polyethylene glycol (molecular weight 1000)

(2) Storage stability test The liquid bleaching composition was stored at 50 ° C for 2 weeks, and the residual rate of the organic peracid precursor after storage was measured. (3) Measurement of Organic Peracid Generation Rate 1 ml of a liquid bleaching composition (corresponding to the amount used during normal washing) was added to 1 L of a solution of 150 ppm of sodium carbonate at 25 ° C. and stirred. After 5 minutes, the amount of organic peracid in the test solution was titrated according to the iodometry method, and the generation rate of organic peracid was determined by the following formula 1.

[0046]

(Equation 1)

(3) Liquid bleach composition Table 6, Table 7, Table 8, Table 9, Table 10, Table 11 and Table 12
The liquid bleaching agent composition shown in 1 was prepared and the storage stability of the organic peracid precursor and the organic peracid generation rate were measured. In Tables 7 and 8, Tables 9 and 10, and Tables 11 and 12, one composition was divided into two tables.

[0048]

[Table 6]Table 6: Liquid bleach compositions (Examples 1-10) Example 1 2 3 4 5 6 7 8 9 10 (a) Group a-1 10 20 20 − − − − − − − a-2 − − − 10 10 20 20 20 20 20 (b) Group b-1 1 1 − 1 − − − − − − b-2 − − 1 − 1 1 2 2 − − b-3 − − − − − − − − 1 − b-4 − − − − − − − − − 1 (c) group c-1 5 5 5 5 5 5 5 5 5 5 (d) Group d-1 2 − − − − − − − − − d-2 − 2 − − 2 1 − 1 − − d-3 − − 2 − − − − − 1 − d-4 − − − 2 − 2 1 − − 1 (e) Group compounding amount (%) Remainder compounding ratio e-1 100 100 98 90 100 100 100 100 90 20 e-2 / 0/0/2/10/0/0/0/0/10/80 Ethane-1-hydroxy-0.1 − 0.5 − 0.1 0.1 − 0.5 − − 1,1-diphosphonic acid pH 3 3 3 3 3 2.5 2.5 3 3 3 Storage stability 94 93 92 95 93 95 94 93 92 82 Peracid generation rate 90 89 91 88 93 90 93 92 91 89

[0049]

[Table 7]Table 7: Liquid bleach composition (part 1 of Examples 11 to 20) Example 11 12 13 14 15 16 17 18 19 20 (a) Group a-3 10 20 − − − − − − − − a-4 − − 10 10 20 20 20 20 − − a-5 − − − − − − − − 10 20 (b) Group b-1 1 1 − − − − − − − − b-2 − − 1 1 2 2 1 1 1 1 (c) group c-1 5 5 5 5 5 5 5 5 5 5 (d) Group d-1 2 − − − 1 − − − − − d-2 − 2 − − − 1 − − 2 2 d-3 − − 2 − − − 1 − − − d-4 − − − 2 − − − 1 − − (e) Group Remainder composition ratio e-1 100 100 100 70 70 50 30 10 90 100 e-2 / 0/0/0/30/30/50/70/0/10/0 e-3 / 0/0/0/0/0/0/0/90/0/0

[0050]

[Table 8]Table 8: Liquid bleach composition (part 2 of Examples 11 to 20) Example 11 12 13 14 15 16 17 18 19 20 Ethane-1-hydroxy-0.5 − − 0.5 − 0.5 − − − − 1,1-Diphosphonic acid ethane-1,1,2- − 0.5 − − − − 0.5 − − − Triphosphonic acid ethane-1,1-di- − − − − − − 0.5 − 0.5 Phosphonic acid pH 3 3 3 3 2.5 2.5 2.5 2.5 3 3 Storage stability 91 93 95 96 97 95 94 94 91 92 Peracid generation rate 91 92 89 88 87 90 90 88 91 92

[0051]

[Table 9] Table 9: Liquid bleach composition (Part 1 of Examples 21 to 28 ) Example 21 22 23 24 25 26 27 28 (a) group a-1 --- --- --- --- a- 2 − − − − − − − − a-3 − − − − − − − − a-6 20 20 − − − − − − a-7 − − 10 10 10 10 − − a-8 − − − − − − 10 10 (b) Group b-1 1 − − − − − − − b-2 − 1 − − − − − − b-3 − − 1 − − − − − b-4 − − − 1 − − − − B-5 − − − − 1 − − − b-6 − − − − − 1 − − b-7 − − − − − − 1 − b-8 − − − − − − − 1 (c) group c -1 5 5 5 5 5 5 5 5

[0052]

[Table 10]

[0053]

[Table 11] Table 11: Liquid bleach composition (Part 2 of Examples 21 to 28 ) Example 21 22 23 24 25 26 27 28 (d) group d-1 2 2 − − − − − − d- 2 − − 2 2 − − − − d-3 − − − − 2 2 − − d-4 − − − − − − 2 2 (e) group Remaining compounding ratio e-1 100 100 100 70 50 30 100 100 e -2 / 0/0/0/30/0/70/0/0 e-3 / 0/0/0/0/50/0/0/0 ethane-1-hydroxy-0.5 0.1 − 0.1 − 0.1 − − 1,1-Diphosphonic acid pH 3 3 3 3 3 3 3 3 3 Storage stability 89 91 92 90 88 87 88 87 Peracid generation rate 90 91 92 95 93 94 92 93

[0054]

[Table 12]

The following are examples of the characteristic features of the present invention. (1) As a phosphonic acid-based chelating agent which is a component of (f),
Ethane-1,1-diphosphonic acid, ethane-1,1,2 triphosphonic acid or ethane-1-hydroxy-1,1-
Diphosphonic acid is used. (2) As a solubilizing agent for (e) group components, a molecular weight of 200-
10000 polyethylene glycol is used.

Claims (1)

[Claims] 1. The following (a), (b), (c), (d),
One or more surfactants selected from the following group (a), which contains compounds of groups (e) and (f); and (b)
One or more surfactants selected from the group,
The weight ratio of the group (a) to the group (b) is (a) / (b) = 100.
0/1 to 10/1, and the total of (a) + (b) is 5 to 30% by weight in the composition, and (c) group, (d) group,
A liquid bleaching composition, wherein each component of the groups (e) and (f) has the content described below, and the pH of the solution is 2.5 to 4.5. Group (a): general formula (I), (II) or (III) of formula 1
A surfactant represented by (In the general formulas I, II, and III, R ₁ represents a linear or branched alkyl group having 8 to 18 carbon atoms, an alkenyl group, or a mixture thereof; n represents the number of moles of ethylene oxide added;
Take the value of ) Group (b): a surfactant represented by the general formula (IV), (V), (VI) or (VII) of Chemical formula 2, and a linear alkylbenzene sulfonate, α-olefin sulfonate or polyoxy. One or more surfactants selected from ethylene alkyl or alkenyl sulfate salts (In the general formulas IV, V, VI and VII, R ₂ represents a linear or branched alkyl group or alkenyl group having 8 to 18 carbon atoms.
u) n represents a molecule in which n glucose molecular units are linked by bonds at 1, 4, or 1, 6 positions. n takes a value of 1 to 10. (Glu-OMe) represents methyl glucoside and has an ester bond at the 6-position. ) (C) group: 0.5 to 10% by weight of hydrogen peroxide in the composition (d) group: 0.1 to 10% by weight of the organic peracid precursor represented by the general formula (VIII) of Chemical formula 3 in the composition % R ₃ COO—C ₆ H ₄ —Z Formula (VIII) (wherein R ₃ is a linear alkyl group having a carbon chain length of 7 to 12, Z is —COOH, —COOM, —SO ₃ H) , -SO ₃ M, M
Represents an alkali metal) (group e): water and a solubilizing agent in a weight ratio of water / solubilizing agent = 1/0 to 1/10 balance (f) group: phosphonic acid group Chelating agent 0-5% by weight