JP6667338B2 - Liquid bleach composition - Google Patents

Description

  The present invention relates to liquid bleach compositions.

Generally, hydrogen peroxide is blended with a liquid oxygen bleach. Hydrogen peroxide is easily decomposed by exposure to generate gas. Therefore, in a container having a low light-shielding property, the internal pressure of the container is increased by the gas generated by the decomposition of hydrogen peroxide, and the container is likely to be deformed. Further, since hydrogen peroxide is decomposed, the quality value as a bleaching agent is easily lost. Then, the invention which suppresses the decomposition of hydrogen peroxide in the liquid oxygen-based bleach has been conventionally proposed.
For example, a container-containing liquid bleaching article containing a specific nonionic surfactant, a phenolic radical trapping agent, and a phosphonic acid sequestering agent is known (Patent Document 1). According to the invention of Patent Literature 1, stabilization of hydrogen peroxide suppresses a change in a container caused by decomposition of hydrogen peroxide.
Further, a liquid bleaching composition containing hydrogen peroxide, a specific aromatic compound, and a carboxy group-containing linear polymer is known (Patent Document 2). According to the invention of Patent Literature 2, the stability of the liquid oxygen-based bleach composition at high and low temperatures is improved by stabilizing hydrogen peroxide.

JP 2011-148987 A JP-A-9-286998

However, although the liquid oxygen-based bleach article described in Patent Document 1 can suppress deformation of the container due to stabilization of hydrogen peroxide, turbidity, yellowing, and the like generated in the liquid oxygen-based bleach article in a severe exposure environment The precipitation has not been sufficiently improved. Further, in the liquid bleaching composition described in Patent Literature 2, although the stability of hydrogen peroxide is improved, turbidity, yellowing, and precipitation caused by exposure are not improved.
Therefore, the present invention provides a liquid bleaching composition which can suppress the decomposition of hydrogen peroxide, and is turbid, yellowish, and hardly causes precipitation upon exposure, that is, improved liquid appearance stability even when exposed to sunlight. With the goal.

The present invention has the following aspects.
[1] A liquid bleach composition comprising hydrogen peroxide (A) and a polyoxyalkylene polycyclic phenyl ether.
[2] The liquid bleach composition according to [1], further comprising at least one kind (C) selected from the group consisting of alkylbenzenesulfonic acids having an alkyl group having 1 to 6 carbon atoms and salts thereof.
[3] The liquid bleach composition according to [1] or [2], further comprising (D) a bleach activator.

[4] The composition according to any one of [1] to [3], wherein the content of the component (A) is 0.1 to 5% by mass relative to the total mass of the liquid bleach composition. Liquid bleach composition.
[5] The composition according to any one of [1] to [4], wherein the content of the component (B) is 0.2 to 10% by mass relative to the total mass of the liquid bleach composition. Liquid bleach composition.
[6] The method according to any one of [1] to [5], wherein the mass ratio represented by the content of the component (A) / the content of the component (B) is 0.05 to 4. Liquid bleach composition.
[7] The liquid bleach composition according to [2], wherein the content of the component (C) is 0.1 to 5% by mass based on the total mass of the liquid bleach composition.
[8] The liquid bleach composition according to [3], wherein the content of the component (D) is 0.1 to 2% by mass based on the total mass of the liquid bleach composition.

  The liquid bleach composition of the present invention suppresses the decomposition of hydrogen peroxide and has excellent liquid appearance stability.

(Liquid bleach composition)
The liquid bleach composition of the present invention contains the following components (A) and (B).

<(A) component>
The component (A) is hydrogen peroxide. The component (A) has oxidizing power and is responsible for the bleaching effect of the liquid bleach composition.

  (A) As for content of a component, 0.1-5 mass% is preferable with respect to the total mass of a liquid bleach composition, 1-4 mass% is more preferable, 1.5-3 mass% is still more preferable. . When the content of the component (A) is at least the lower limit, the detergency (i.e., bleaching power) against yellowing in the liquid bleach composition will increase. When the content of the component (A) is equal to or less than the upper limit, the liquid bleach composition can have improved liquid appearance stability even when exposed to sunlight.

<(B) component>
The component (B) is a polyoxyalkylene polycyclic phenyl ether. The polyoxyalkylene polycyclic phenyl ether is a “group having at least two monocyclic aromatic hydrocarbon groups (eg, phenyl group, phenylene group, etc.)” or “a polycyclic aromatic hydrocarbon group (eg, naphthyl group, etc.)” A group having at least one ".
The component (B) is a component that suppresses the decomposition of the component (A) and has good liquid appearance stability. Examples of the component (B) include compounds represented by the following formula (1).

In the formula (1), X is a polycyclic phenyl group; AO is an alkyleneoxy group having 2 to 5 carbon atoms; Z is SO ₃ M or a hydrogen atom, and M is a hydrogen atom or an organic or inorganic Is a cation; n is a number from 3 to 120.

In the above formula (1), X is a polycyclic phenyl group.
Here, the “polycyclic phenyl group” is a “group having at least two monocyclic aromatic hydrocarbon groups (eg, phenyl group, phenylene group, etc.)” or a “polycyclic aromatic hydrocarbon group (specifically, Specifically, it is a group in which at least two benzene rings are condensed, and includes, for example, a naphthyl group, a phenanthryl group and the like).
The “polycyclic phenyl group” in the formula (1) is, for example, the following formulas (2) to (5).

In the formulas (2) to (5), R ¹ is a chain hydrocarbon group having 1 to 3 carbon atoms. R ² and R ³ are each independently a hydrogen atom, a chain hydrocarbon group having 1 to 3 carbon atoms, or a group represented by the formula (6). R ⁴ and R ⁵ are each independently a hydrogen atom or a chain hydrocarbon group having 1 to 3 carbon atoms. x is an integer of 1 to 3.

In the formula (6), R ⁶ and R ⁷ are each independently a hydrogen atom or a chain hydrocarbon group having 1 to 3 carbon atoms, and y is an integer of 1 to 3.

  The polyoxyoxyalkylene polycyclic phenyl ether used in the present invention may contain a bisphenol-based polycyclic group represented by the formulas (7) to (8).

In the formulas (7) to (8), R ⁸ and R ⁹ are each independently a hydrogen atom or a chain hydrocarbon group having 1 to 3 carbon atoms, and is an integer of m ≧ 2.

  In the formula (1), X is preferably a distyrenated phenyl group, a distyrenated methylphenyl group, or a tristyrenated phenyl group.

In the formula (1), Z represents SO ₃ M or a hydrogen atom, and M represents a hydrogen atom or an organic or inorganic cation, and is preferably a hydrogen atom. Examples of the cation represented by M include an alkali metal ion, an alkaline earth metal ion, an ammonium ion, and an alkyl-substituted ammonium ion.

  In the formula (1), n is preferably 3 to 120, more preferably 3 to 20, and particularly preferably 3 to 10. When the upper limit value and the lower limit value are within the above ranges, both the appearance stability of the liquid bleach composition and the suppression of hydrogen peroxide decomposition can be achieved.

Commercially available products include, for example, Emulgen A-60, Emulgen A-90, Emulgen A-500, and Emulgen B-66 manufactured by Kao Corporation; New Coal 703, New Coal 704, New Coal 706, New Coul Call 707, New Call 708, New Call 709, New Call 710, New Call 711, New Call 712, New Call 714, New Call 719, New Call 723, New Call 729, New Call 733, New Call 740, New Call 747. New Call 780, New Call 610, New Call 2604, New Call 2607, New Call 2609, New Call 2614, New Call 707-SF, New Call 707-SN, New Call 714-SF New Coal 723-SF, New Coal 740-SF, New Coal 780-SF, New Coal 2607-SF, New Coal 2614-SF; Neugen EA-87, Neugen EA-137, Neugen EA- 157, Neugen EA-167, Neugen EA-177, Neugen EA-197D, Neugen EA-207D (all are trade names).
These may be used alone or in combination of two or more.

  (B) As for content of a component, 0.2-10 mass% is preferable with respect to the total mass of a liquid bleach composition, 0.5-5 mass% is more preferable, 1-3 mass% is still more preferable. . When the content of the component (B) is at least the above lower limit, the decomposition of hydrogen peroxide can be sufficiently suppressed even when exposed to sunlight, and when it is at most the above upper limit, the liquid bleach even when exposed to sunlight. The liquid appearance stability of the composition can be improved.

  The liquid bleach composition of the present invention has a mass ratio represented by “content of component (A) / content of component (B)” (hereinafter sometimes referred to as the ratio (A) / (B)). Is preferably 0.05 to 4, more preferably 0.1 to 3, and still more preferably 0.3 to 2. When the lower limit and the upper limit of the (A) / (B) ratio are within the above ranges, the detergency of the liquid bleach composition against yellowing is increased, and the decomposition of hydrogen peroxide is sufficiently performed even when exposed to sunlight. Can be suppressed.

<(C) component>
The component (C) is at least one selected from the group consisting of alkylbenzenesulfonic acids having an alkyl group having 1 to 6 carbon atoms and salts thereof.
The component (C) is a component responsible for good liquid appearance stability.

The alkyl group having 1 to 6 carbon atoms may be linear or branched. For example, a methyl group, an ethyl group, a propyl group, and an isopropyl group are mentioned, and a methyl group and an isopropyl group are preferable.
Examples of the component (C) include p-toluenesulfonic acid (hereinafter sometimes abbreviated as PTS), m-xylenesulfonic acid, cumenesulfonic acid and the like, and PTS is preferable.

The content of the component (C) is preferably from 0.1 to 5% by mass, more preferably from 0.3 to 3% by mass, and preferably from 0.5 to 2% by mass, based on the total mass of the liquid bleach composition. More preferred. When the content of the component (C) is in the range of the lower limit and the upper limit, the appearance stability of the liquid bleach composition can be improved even when exposed to sunlight.
The liquid bleach composition of the present invention has a mass ratio represented by “content of component (C) / content of component (B)” (hereinafter, may be referred to as (C) / (B) ratio). Is preferably 0.01 to 0.5, more preferably 0.05 to 0.3, and still more preferably 0.1 to 0.2. When the (C) / (B) ratio is in the range of the lower limit value and the upper limit value, the liquid bleach composition can have improved liquid appearance stability even when exposed to sunlight.

<(D) component>
The component (D) is a bleach activator. A bleach activator is a substance that has no bleaching effect per se, but reacts with hydrogen peroxide in a liquid bleach composition to convert it to a highly oxidizing organic peracid.
Known compounds can be used as the bleaching activator. For example, tetraacetylethylenediamine; an alkanoyloxybenzenesulfonic acid having an alkanoyl group having 1 to 18 carbon atoms, preferably 8 to 12 carbon atoms or a salt thereof; an alkanoyl group having 1 to 18 carbon atoms, preferably 8 to 12 carbon atoms; Alkanoyloxybenzoic acid or a salt thereof. Of these, 4-decanoyloxybenzoic acid (DOBA), sodium 4-dodecanoyloxybenzenesulfonate (DOBS), and sodium 4-nonanoyloxybenzenesulfonate (NOBS) are preferred.
These bleach activators may be used alone or in combination of two or more.

The content of the bleach activator is preferably 0.1 to 2% by mass, more preferably 0.2 to 1.5% by mass, and more preferably 0.4 to 1% by mass, based on the total mass of the liquid bleach composition. % Is more preferred. When the content of the bleach activator is equal to or more than the lower limit, the bleaching power against yellowing in the liquid bleach composition increases, and when the content is equal to or less than the upper limit, the liquid of the liquid bleach composition is exposed to sunlight. The appearance stability can be improved.
The liquid bleach composition of the present invention has a mass ratio represented by “content of component (D) / content of component (B)” (hereinafter sometimes referred to as (D) / (B) ratio). Is preferably 0.1 or more, more preferably 0.5 to 10, and still more preferably 1 to 5. When the (D) / (B) ratio is in the range of the lower limit value and the upper limit value, the liquid bleach composition can be improved in liquid appearance stability even when exposed to sunlight.

<Solvent>
The liquid bleach composition of the present invention preferably contains water as a solvent from the viewpoints of ease of handling during production, solubility in water when used, and the like. In addition, water is the rest of the composition.
The water content is, for example, preferably from 20 to 98% by mass, more preferably from 40 to 95% by mass, and still more preferably from 60 to 92% by mass, based on the total mass of the liquid bleach composition.

<Optional components>
The liquid bleach composition of the present invention may contain components (arbitrary components) other than the components (A) to (D) as long as the effects of the present invention are not impaired.
The optional component may be any component that is generally blended with a detergent for clothing and a bleaching agent. For example, optional surfactants such as nonionic surfactants, anionic surfactants, semipolar surfactants, and cationic surfactants Agents; chelating agents; pH adjusters; hydrotropes such as primary alcohols having 1 to 3 carbon atoms; thickeners; enzymes; dyes; fragrances;

(Optional surfactant)
Examples of the nonionic surfactant include polyoxyalkylene alkyl ethers such as polyoxyethylene alkyl ether (AE) and polyoxyethylene polyoxypropylene alkyl ether (EOPO nonionic), alkyl (poly) glycoside, sorbitan fatty acid ester, and polyoxyethylene. Sorbitan fatty acid ester, polyoxyethylene fatty acid ester, polyoxyethylene fatty acid ester oxyethylene propylene block polymer, fatty acid monoglyceride and the like can be mentioned.
Among the above, polyoxyalkylene alkyl ethers are preferred from the viewpoints of stability in a liquid detergent containing a bleaching component such as hydrogen peroxide, ease of controlling the amount of dissolved gas in the liquid detergent, and the like. The polyoxyalkylene alkyl ether represented by the formula (9) is particularly preferred.

R ¹⁰ -O- (AO) _p -H (9)

In the formula (9), R ¹⁰ is a linear or branched alkyl or alkenyl group having 8 to 16 carbon atoms; AO represents an alkyleneoxy group having 2 to 5 carbon atoms; It indicates the number of moles added, and is 1 to 20, preferably 3 to 15.
The carbon number of R ^{10 in} the above formula (9) is 8 to 16, preferably 10 to 14, and more preferably 12 to 14 in any case of an alkyl group and an alkenyl group. When the carbon number is 8 or more, the detergency is improved, and when the carbon number is 16 or less, the solubility is improved.
R ¹⁰ is preferably an alkyl group, and specifically, a heptyl group, an octyl group, a nonyl group, a decyl group, an undecyl group, a dodecyl group, a tridecyl group, a tetradecyl group, a pentadecyl group, and a hexadecyl group are preferred. A tetradecyl group is particularly preferred.
Examples of AO include an oxyethylene group, an oxypropylene group, an oxybutylene group, and an oxypentylene group. Of these, an oxyethylene group and an oxypropylene group are preferred, and an oxyethylene group is preferred. AO may be added alone, or two or more may be added.
Although s depends on the type of AO, for example, when AO is an oxyethylene group and / or an oxypropylene group, it is preferably 3 to 15.

  Examples of the anionic surfactant include a linear alkylbenzene sulfonic acid or a salt thereof, an α-olefin sulfonate, a linear or branched alkyl sulfate, an alkyl ether sulfate or an alkenyl ether sulfate, and an alkyl group. Alkane sulfonate, α-sulfofatty acid ester salt and the like. Examples of the salt in these anionic surfactants include alkali metal salts such as sodium and potassium, alkaline earth metal salts such as magnesium, and alkanolamine salts such as monoethanolamine and diethanolamine.

As the linear alkylbenzene sulfonic acid or a salt thereof, a linear alkyl group having 8 to 16 carbon atoms is preferable, and one having 10 to 14 carbon atoms is particularly preferable.
As the α-olefin sulfonate, those having 10 to 20 carbon atoms are preferable.
As the alkyl sulfate, those having 10 to 20 carbon atoms in the alkyl group are preferable.
The alkyl ether sulfate or alkenyl ether sulfate has a linear or branched alkyl or alkenyl group having 10 to 20 carbon atoms, and an average of 1 to 10 moles of an ethyleneoxy group (EO) is added. And those further having an average of 0 to 6 moles of a propylene group oxy group (PO) added thereto (that is, polyoxyethylene (propylene) alkyl ether sulfate or polyoxyethylene (propylene) alkenyl ether sulfate).
When both EO and PO are adducts, the method of adding EO and PO is not particularly limited, and may be, for example, random addition or block addition. Examples of the block adding method include a method of adding PO after adding EO; a method of adding EO after adding PO; a method of adding PO after adding EO, and a method of further adding EO. Is mentioned.
As the alkane sulfonate, those having 10 to 20 carbon atoms in the alkyl group are preferable, and those having 14 to 17 carbon atoms are more preferable. Among them, those in which the alkyl group is a secondary alkyl group (ie, secondary alkane sulfonate) are particularly preferable.
As the α-sulfofatty acid ester salt, those having 10 to 20 carbon atoms in the fatty acid residue are preferable.

  Among these, linear alkylbenzene sulfonic acid or a salt thereof, alkane sulfonate, polyoxyethylene alkyl ether sulfate, and α-olefin sulfonate are preferable in terms of excellent detergency and stability. Acids or salts thereof, and alkane sulfonates are more preferred, and sodium linear alkylbenzene sulfonates (LAS) and sodium secondary alkane sulfonates having 14 to 17 carbon atoms (SAS) are particularly preferred.

  As the semipolar surfactant, for example, lauric acid amidopropyldimethylamine oxide, lauryldimethylamine oxide and the like can be mentioned.

Examples of the cationic surfactant include an alkyltrimethylammonium salt, a dialkyldimethylammonium salt, an alkylbenzyldimethylammonium salt, and an alkylpyridinium salt, and an alkyltrimethylammonium salt is preferable.
One of these optional surfactants may be used alone, or two or more thereof may be used in combination.

  When the liquid bleaching composition of the present invention contains a nonionic surfactant as an optional surfactant, the content of the nonionic surfactant is at least 3% by mass and 50% by mass relative to the total mass of the liquid bleaching composition. It is preferably at most 4 mass%, more preferably at most 4 mass% and at most 25 mass%, particularly preferably at least 5 mass% and at most 15 mass%. When the content of the nonionic surfactant is in the range of not less than the lower limit and not more than the upper limit, the effect of the component (B) is easily exerted.

(Chelating agent)
Examples of the chelating agent include aminocarboxylic acids such as nitrilotriacetic acid, glycol ethylenediamine hexaacetic acid, β-alanine diacetate, aspartic acid diacetate, methyl glycine diacetate and iminodisuccinic acid, and salts thereof; 1-hydroxyethane-1,1 -Diphosphonic acid, ethane-1,1-diphosphonic acid, ethane-1,1,2-triphosphonic acid, hydroxyethane-1,1,2-triphosphonic acid, ethane-1,2-dicarboxy-1,2-diphosphonic acid Acid, hydroxymethanephosphonic acid, ethylenediaminetetra (methylenephosphonic acid), nitrilotri (methylenephosphonic acid), 2-hydroxyethyliminodi (methylenephosphonic acid), hexamethylenediaminetetra (methylenephosphonic acid), diethylenetriaminepenta (methylenephosphonic acid) ) Machine phosphonic acids or salts thereof; diglycolic acid, oxalic acid, organic acids or salts thereof such as gluconic acid and the like.
These chelating agents may be used alone or in combination of two or more.
When the liquid bleaching composition of the present invention contains a chelating agent, the content of the chelating agent is preferably 0.1 to 10% by mass, and preferably 0.2 to 4% by mass, based on the total mass of the liquid bleaching agent composition. %, More preferably 0.5 to 2% by mass. When the content of the chelating agent is not less than the lower limit, decomposition of hydrogen peroxide in the liquid bleach composition can be sufficiently suppressed even when exposed to sunlight. When the content is not more than the upper limit, the liquid appearance stability of the liquid bleach composition can be improved even when exposed to sunlight.

(PH adjuster)
Examples of the pH adjuster include inorganic acids such as hydrochloric acid, sulfuric acid, and phosphoric acid; organic acids such as citric acid and phosphonic acid derivatives; sodium borate, sodium hydroxide, potassium hydroxide, sodium carbonate, sodium hydrogen carbonate, and monoethanol. Amine, diethanolamine, triethanolamine, ammonia and the like can be used.
The pH of the liquid bleach composition of the present invention is preferably 2 to 6, more preferably 3 to 5, and even more preferably 3 to 4. Various pH adjusters can be used so as to obtain a desired pH.
The pH of the liquid bleach composition (temperature adjusted to 25 ° C.) indicates a value measured by a pH meter (manufactured by Toa DKK Ltd., “HM-30G”) or the like.

<Production method of liquid bleach composition>
The liquid bleach composition of the present invention is not particularly limited, and is manufactured by a conventionally known manufacturing method.
For example, the components (A) and (B) and, if desired, at least one component selected from the group consisting of the component (C), the component (D), and an optional component are mixed with a solvent (for example, ion-exchanged water or the like). In water), dissolving and adjusting to a predetermined pH.

<How to use liquid bleach composition>
The method of using the liquid bleach composition of the present invention may be, for example, a method in which the liquid bleach composition is used alone or together with a known detergent or softener in water to form a cleaning solution, and the washing solution is charged with an object to be washed, Washing method: a method of dissolving the liquid bleach composition in water in advance, immersing the laundry in this, and then washing with a washing machine. Further, after applying the liquid bleaching composition to the laundry, it may be left as appropriate, and thereafter, ordinary washing may be performed.
Examples of the articles to be washed include textiles such as clothing, cloth, sheets, curtains, and carpets.
The content of the liquid bleach composition in the washing liquid is not particularly limited. The amount of the liquid bleach composition added to water is, for example, 3 to 15 mL of the liquid bleach composition per 10 L of water.

  The liquid bleach composition of the present invention contains the components (A) and (B), and the component (B) is preferably a compound represented by the formula (1); Is more preferably a group selected from the group consisting of groups represented by the above formulas (2) to (5); X is a distyrenated phenyl group, a distyrenated methylphenyl group, or a tristyrenated phenyl More preferably, it is a group.

  Hereinafter, the present invention will be described in detail with reference to examples, but the present invention is not limited to the following description.

(Raw materials used)
<(A) component>
A-1: Hydrogen peroxide (manufactured by Mitsubishi Gas Chemical Co., Ltd.).

<(B) component>
B-1: Newcol 704 (trade name, manufactured by Nippon Emulsifier Co., Ltd., polyoxyethylene distyrenated cresyl ether)
B-2: Newcol 710 (trade name, manufactured by Nippon Emulsifier Co., Ltd. Polyoxyethylene distyrenated methylphenyl ether)
B-3: Newcol 707SN (trade name, manufactured by Nippon Emulsifier Co., Ltd .; polyoxyethylene distyrenated methylphenyl ether sulfate)
B-4: Neugen EA-87 (trade name, manufactured by Dai-ichi Kogyo Seiyaku Co., Ltd. Polyoxyethylene allyl phenyl ether)
B'-1: methoxyphenol (trade name "MQ-F", manufactured by Kawaguchi Chemical Industry Co., Ltd.)
B′-2: 1-hydroxyethane-1,1-diphosphonic acid (HEDP) (trade name “BRIQUEST ADPA” manufactured by Rhodia)

<(C) component>
-C-1: p-toluenesulfonic acid (PTS) (trade name "PTS acid" manufactured by Kyowa Hakko Kogyo Co., Ltd.)

<(D) component>
D-1: Sodium 4-lauroyloxybenzenesulfonate (OBS) (trade name “OBS-12” manufactured by Nitto Kasei Co., Ltd.)
D-2: 4-decanoyloxybenzoic acid (OBC) (trade name “AC agent” manufactured by Mitsui Toatsu Chemicals, Inc.).

<Optional components>
(Nonionic surfactant)
-Polyoxyethylene alkyl ether (AE (EO7), manufactured by Lion Corporation, trade name "Rheox CL-70").
Polyoxyethylene polyoxypropylene alkyl ether (EOPO type nonion, natural alcohol CO1270 (C12 / C14 = 7/3 (mass ratio), manufactured by Procter & Gamble Co., Ltd.)), 8 mol of ethylene oxide and 2 mol of Nonionic surfactant obtained by block-adding propylene oxide and 8 mol of ethylene oxide in this order)
(Anionic surfactant)
-Sodium linear alkyl benzene sulfonate (LAS, manufactured by Lion Corporation, alkyl group having 10 to 14 carbon atoms).
-C14-C17 secondary sodium alkane sulfonate (SAS, Clariant Japan Co., Ltd. product name "HOTAPUR SAS 30A").
(Semipolar surfactant)
-Amidopropyldimethylamine oxide laurate (APAX, manufactured by Clariant, trade name "GENAMINOX AP").
(Cationic surfactant)
C14 monoalkyl cation: alkyl chloride (C14) trimethylammonium (manufactured by Tokyo Chemical Industry Co., Ltd.).

(Examples 1 to 15, Comparative Examples 1 to 4)
According to the compositions shown in Tables 1 to 3, the components (A) to (D) and optional components were mixed with water to prepare liquid bleach compositions of each example.
In addition, the compounding quantity in a table | surface is a pure content conversion value. In addition, components whose amounts are not described in the table are not blended. Water is blended as a balance so that the total amount of the liquid bleach composition is 100% by mass.
The liquid bleach composition of each example was evaluated for liquid appearance stability, suppression of decomposition of hydrogen peroxide, and bleaching power (that is, detergency against yellowing). The results are shown in Tables 1 to 3.

<Evaluation of liquid appearance stability>
150 g of the prepared composition was placed in a transparent bottle, a polypropylene container JP-250 (trade name, manufactured by Nikko Hanse Co., Ltd.), and stored outdoors in the sun. The appearance of the solution over time was visually evaluated, and the amount of ultraviolet light at the time when turbidity, yellowing, and precipitation occurred was calculated with an integrated illuminance recording device PH3T (trade name, manufactured by Suga Test Instruments Co., Ltd.), and the solution was evaluated according to the following evaluation criteria. The appearance stability was evaluated. 、, 、, ◎ were accepted.
Evaluation criteria:
A: The amount of ultraviolet light is 300 ly or more.
：: The amount of ultraviolet light is 150 ly or more and less than 300 ly.
Δ: The amount of ultraviolet light is not less than 50 ly and less than 150 ly.
X: The amount of ultraviolet rays is less than 50 ly.

<Evaluation of suppression of decomposition of hydrogen peroxide>
Each 150 g of the prepared composition was put in a polypropylene bottle (Nikko Hanse K.K., "JP-250"), which was a transparent bottle, and stored outdoors in the sun. The concentration of hydrogen peroxide at the time when the integrated illuminance calculated by an integrated illuminance recording device (“PH3T” manufactured by Suga Test Instruments Co., Ltd.) was 13 mJ / m ² was measured by an iodomery method. From the measurement results, the residual ratio of hydrogen peroxide was calculated from the concentration of hydrogen peroxide after outdoor storage with respect to the concentration of hydrogen peroxide before outdoor storage, and the suppression of decomposition of hydrogen peroxide was evaluated according to the following evaluation criteria. 、, 、, ◎ were accepted.
Evaluation criteria A: The residual ratio of hydrogen peroxide is 80% or more.
Good: The residual ratio of hydrogen peroxide is 70% or more and less than 80%.
Δ: The residual ratio of hydrogen peroxide is 50% or more and less than 70%.
X: The residual ratio of hydrogen peroxide is less than 50%.

<Evaluation of bleaching power>
(Creation of evaluation cloth)
Men in their 20s and 30s wore a commercially available cotton skin shirt (manufactured by BVD, 100% cotton) for one day. The cotton skin shirt after the wearing and a commercially available cotton skin shirt (manufactured by BVD, 100% cotton) were adjusted to a total of 700 g, and a fully automatic washing machine (Haier, product name "JW-Z23A"). ). Next, 4 mL of a liquid detergent for clothing (manufactured by Lion Corporation, product name "NANOX") was charged, and washing, rinsing, and dehydration were performed in the standard course of the washing machine, and the cotton shirt was washed. The washed cotton-skin shirt was dried using a standard course of an electric dryer for clothes (manufactured by TOSHIBA, product name "ED-45C").
Clothes obtained by repeating the operations from wearing to washing and drying 20 times were stored on a drawer shelf at room temperature for 6 months to prepare test clothes. A cloth having a size of 5 × 5 cm was cut out from the body of the test garment, and the reflectance was measured with a colorimeter (manufactured by Nippon Denshoku Co., Ltd., product name “SE2000”). = 8 ± 0.5) was used as an evaluation cloth (evaluation cloth before washing).

(Evaluation method)
The five evaluation cloths were spread on a plastic petri dish so as not to overlap, and 0.3 mL of each composition was dropped on each evaluation cloth, and then left at room temperature for 10 minutes. The evaluation cloth after standing and 43 g of the charge cloth (cotton knitted cloth) were put into a cleaning tester (Terg-O-Tometer) together with 900 mL of tap water (15 ° C., 3 ° DH hard water) and washed at 120 rpm for 10 minutes. . After the washing, dehydration was performed, and rinsing was performed with 900 mL of tap water (15 ° C., 3 ° DH hard water) for 3 minutes. The evaluation cloth after the rinsing was dehydrated and dried with an iron to obtain a cleaning evaluation cloth.
The reflectance of each of the evaluation cloth before cleaning and the five evaluation cloths after cleaning was measured with a colorimetric colorimeter (product name “SE2000” manufactured by Nippon Denshoku Co., Ltd.), and the cleaning rate (%) was calculated by the following formula (s). ).
Cleaning rate (%) = (Reflectance of evaluation cloth before cleaning−Reflectance of evaluation cloth after cleaning) / (Reflectance of evaluation cloth before cleaning−Reflectance of uncontaminated cloth) × 100 (s) )
In the formula (s), the non-contaminated cloth is a cloth cut out to a size of 5 × 5 cm from a trunk of a new cotton skin shirt (manufactured by BVD, 100% cotton).
Using the average value of the cleaning rates of the five evaluation cloths as the detergency, the detergency against yellowing (that is, the bleaching power) was evaluated according to the following evaluation criteria. △ and △ were accepted.
Evaluation criteria:
：: Bleaching power is 25% or more and less than 30%.
Δ: Bleaching power is 15% or more and less than 25%.
X: Bleaching power is 0 or more and less than 15%.

As is evident from Tables 1 and 2, the liquid bleach compositions of Examples 1 to 15 had suppressed decomposition of hydrogen peroxide and had excellent liquid appearance stability over time. Furthermore, the bleaching power was excellent.
Further, Example 10 containing the component (C) had better liquid appearance stability than Example 4 containing no component (C).
In Examples 14 and 15 in which the component (D) is contained in an amount of 1% by mass or more, the bleaching power is superior to those in Example 12 in which the component (D) is not included and Example 13 in which the component (D) is included in an amount of 0.2% by mass. I was
As is clear from Table 3, Comparative Example 1 containing no component (A) was inferior in bleaching power.
Comparative Example 2, which did not contain the component (B), was inferior in hydrogen peroxide decomposition suppression and liquid appearance stability. In Comparative Example 3 using methoxyphenol as the component (B), the stability and the bleaching power of hydrogen peroxide were good, but the stability of the liquid appearance was poor. In Comparative Example 4, in which HEDP was used as the component (B), the liquid appearance stability and the bleaching power were good, but the suppression of decomposition of hydrogen peroxide was poor.
From the above results, it was confirmed that the liquid bleaching agent composition according to the present invention successfully suppressed the decomposition of hydrogen peroxide, had good liquid appearance stability over time, and also had excellent bleaching power. Was done.

Claims (7)

A liquid bleaching detergent composition containing hydrogen peroxide (A) and polyoxyalkylene polycyclic phenyl ether (B), and having a pH of 2 to 6 . The liquid bleaching detergent composition according to claim 1, further comprising (D) a bleaching activator. The liquid bleaching detergent composition according to claim 1 or 2 , further comprising at least one kind (C) selected from the group consisting of alkylbenzenesulfonic acids having an alkyl group having 1 to 6 carbon atoms and salts thereof. The liquid bleaching detergent composition according to any one of claims 1 to 3, wherein the object to be washed is a textile. The liquid bleaching detergent according to any one of claims 1 to 4, wherein the content of hydrogen peroxide (A) is 0.1 to 5% by mass based on the total mass of the liquid bleaching detergent composition. Composition. The content according to any one of claims 1 to 5, wherein the content of the polyoxyalkylene polycyclic phenyl ether (B) is 0.2 to 10% by mass relative to the total mass of the liquid bleaching detergent composition. Liquid bleaching detergent composition. The ratio of the mass of the hydrogen peroxide (A) to the mass of the polyoxyalkylene polycyclic phenyl ether (B) [(A) / (B)] is 0.05 to 4. A liquid bleaching detergent composition according to any one of the preceding claims.