JP4879499B2 - Bleach composition - Google Patents

Description

  The present invention relates to a bleaching composition suitable for foam coating.

  Oxygen-based liquid bleaching agent based on hydrogen peroxide is preferred because it can be used for colors and patterns, and it can be applied directly to dirt. In particular, it is a trigger type that applies liquid in the form of foam. Is very useful from the standpoint of ease of use, such as being difficult to drip and not dirtying hands, in addition to simplicity. As other dosage forms to form foam, squeeze foamer (Patent Document 4, Fig. 3 etc.) type is commercially available, but the discharge amount and foaming property are controlled due to the mechanism of crushing and discharging the container by hand. There was a problem that it was difficult to do.

  On the other hand, oxygen-based liquid bleaching agents are generally washed in a washing machine with a weak alkaline detergent or applied directly to the soil, and then washed in a washing machine with a weak alkaline detergent. The reality is that the level is not satisfactory.

Patent Document 1 discloses a bleaching agent containing a foaming mechanism and a discharge container, which contains a defoaming component and has a foam physical property excellent in permeability to clothing. Patent Document 2 discloses a liquid composition containing a spray-type dispenser, which contains a peroxygen bleach and a surfactant. Patent Document 3 discloses a bleaching agent for hard surfaces containing an alkyl glucoside. Patent Document 4 discloses a foam composition for clothing containing an alkyl glucoside and a polyoxyalkylene ether.
Japanese Patent Laid-Open No. 11-100594 Japanese National Patent Publication No. 11-500778 JP-A-5-156293 JP 2004-76006 A

  The bleaching composition disclosed in the above patent document can be directly sprayed on clothing, and foaming properties immediately after spraying can be obtained, but since the foam stability with time is low, a satisfactory level of bleaching performance is achieved. There was a problem that it could not be obtained.

  An object of the present invention is to provide a liquid oxygen bleaching agent having both simplicity and excellent bleaching power. Another object of the present invention is to provide a bleaching composition that can be stably adhered as a foam having a small particle diameter to an object to be bleached, such as clothing, and can provide an excellent bleaching effect.

  The present invention comprises (a) hydrogen peroxide (hereinafter referred to as component (a)) 0.1 to 6% by mass, (b) sulfonic acid group-containing surfactant (hereinafter referred to as component (b)) 0.1 2% by mass, (c) a nonionic surfactant having an HLB of 10 to 15 (hereinafter referred to as component (c)), (d) one or more surfactants selected from alkanolamide, amine oxide, and betaine [ Hereinafter referred to as (d) component] 0.1 to 3% by mass, and (e) water, and (b) / (d) = 0.5 to 5 and (c) / (d) by mass ratio = Bleach composition with 0.5-5.

  The present invention also relates to a bleach product obtained by filling the above-described bleach composition of the present invention into a container having a trigger sprayer having a foam formation mechanism.

  The present invention also relates to a bleaching method in which the bleaching composition of the present invention is made to act on a bleaching target in the form of foam by using a trigger sprayer having a foam formation mechanism.

  According to the present invention, a liquid oxygen bleach composition excellent in convenience and bleaching performance is provided. Since the bleaching agent composition of the present invention is excellent in foaming property and foaming stability of creamy foam having a small particle size, it is preferably used so as to act on the object to be bleached in the form of foam. The bleaching composition of the present invention is suitable for textile products such as clothing.

<Bleach composition>
The bleaching composition of the present invention contains hydrogen peroxide, which is an easy-to-use bleaching base, as component (a). The content of component (a) is 0.1 to 6% by mass, preferably 0.3 to 6% by mass, and more preferably 0.5 to 5% by mass in order to obtain excellent bleaching performance. .

  The bleaching composition of the present invention contains, as component (b), a sulfonic acid group-containing surfactant that is a foam booster with a stable foam film. As the component (b), one or more surfactants selected from alkylbenzene sulfonates, olefin sulfonates, and α-sulfo fatty acid ester salts are preferable. As a particularly preferred component (b), linear or branched alkyl (C8-18) benzene sulfonate, olefin (C8-18) sulfonate, α-sulfo fatty acid ester salt ( An ester salt of an α-sulfo fatty acid having 8 to 18 carbon atoms and an alcohol having 1 to 2 carbon atoms is preferable. Among these, linear or branched alkyl (carbon number 10 to 15) benzenesulfonate, olefin (carbon number 10 to 15) sulfonate, α-sulfo fatty acid ester salt (preferably carbon number 10 to 10) An ester salt of 15 α-sulfo fatty acid and alcohol having 1 carbon atom) is preferred. These components (b) can be used alone or in combination of two or more. Among these salts, sodium salts, potassium salts, ammonium salts, and alkanolamine salts are preferable from the viewpoint of storage stability. (B) Content of a component is 0.1-2 mass%, Preferably, it is 0.3-2 mass, More preferably, it is 0.5-2 mass%. The content of the component (b) is preferably 2% by mass or less from the viewpoint of suppressing increase in viscosity at low temperature and maintaining foamability.

  The bleaching composition of the present invention contains a nonionic surfactant as component (c). The HLB of the component (c) is 10 to 15, preferably 11 to 14.5, particularly preferably 11.5 to 14. Here, when the polyoxyethylene alkyl ether type nonionic surfactant is used as the HLB, the Griffin method is adopted. In addition, non-ionic surfactants for which HLB cannot be determined by the Griffin method are determined by experiments. As the experimental method, the method described in “Surfactant Handbook” Sangyo Tosho Co., Ltd., edited by Ichiro Nishi et al., 5th edition, January 10, 1966, page 319 can be employed. In addition, when a plurality of nonionic surfactants are mixed, the HLB value has an additivity, so that it can be obtained by a weighted average, and the weighted average value falls within the HLB value range of the present invention. That's fine.

  Preferred nonionic surfactants of the present invention include polyoxystyrene alkyl ether, polyoxyethylene polyoxypropylene alkyl ether and the like.

  More specifically, preferred nonionic surfactants include compounds represented by the following general formula (1).

^R1a- T-[( ^R1bO ) _w- H] _v (1)
[Wherein, R ^1a is a hydrocarbon group having 10 to 16 carbon atoms, preferably 10 to 14 carbon atoms, more preferably an alkyl group having 10 to 14 carbon atoms, and R ^1b is an ethylene group or a propylene group, preferably an ethylene group. , T is a group selected from —O—, —COO—, —CON <, —N <, and w and v are selected to fall within the range of the HLB of the present invention. v is a number of 1 when T is —O— or —COO—, and is a number of 2 when T is —CON <or —N <, and T is —O— or — In the case of COO-, w is 4 to 16, preferably 5 to 14, more preferably 6 to 10, and when T is -CON <or -N <, w is 2 to 8, preferably 2. ~ 7, more preferably 3-6 is suitable. ]

  As a more specific preferred example of the component (c), one or more selected from the compound represented by the following general formula (2-1) and the compound represented by the following general formula (2-2) are preferable.

^{_{R 2a -O- (C 2 H 4}} O) u -H (2-1)
[Wherein, R ^2a represents an alkyl group having 10 to 14 carbon atoms. u is a number of 4 to 12, preferably 5 to 10, particularly preferably 6 to 8.5. ]
_{^{R 2b -O - [(C 2}} H 4 O) t / (C 3 H 6 O) s] -H (2-2)
[Wherein, R ^2b represents an alkyl group having 10 to 14 carbon atoms. t and s are each independently a number of 2 to 12, and t + s is a number of 4 to 12, preferably 5 to 10. Further, ethylene oxide (C ₂ H ₄ O) and propylene oxide (C ₃ H ₆ O) may be random or block adducts. ]

  In the bleaching composition of the present invention, from the viewpoint of detergency, the component (c) is 0.1 to 20% by mass, preferably 1 to 15% by mass, particularly preferably 2 to 10% by mass, and still more preferably 4 to 4%. 8% by mass is contained.

  The bleaching agent composition of the present invention contains one or more surfactants selected from alkanol amides, amine oxides, and betaines as the component (d) from the viewpoint of foaming property.

As an example of the alkanol amide of this invention, what is shown to following General formula (3) is suitable.
R ^3a -CON-R ^3b (R ^3C OH) (3)
[Wherein R ^3a —CO— represents an acyl group having a hydrocarbon group having 8 to 18 carbon atoms, R ^3b represents a methyl group or an ethyl group, and R ^3c represents an alkylene group or an alkenylene group having 1 to 3 carbon atoms. It is. ]

In the general formula (3), R ^3a —CO— is an acyl group having 8 to 18 carbon atoms (referred to as an acyl group for the sake of convenience) and R ^3a is a saturated or unsaturated hydrocarbon group. preferable. Preferred specific examples of R ^3a —CO— include octanoic acid, decanoic acid, dodecanoic acid, tetradecanoic acid, hexadecanoic acid, octadecanoic acid, docosanoic acid, linoleic acid, 2-ethylhexanoic acid, 2-octylundecanoic acid, isostearic acid, Examples include acyl groups derived from oleic acid, and particularly preferred are acyl groups derived from octanoic acid, decanoic acid, dodecanoic acid, tetradecanoic acid, hexadecanoic acid, octadecanoic acid, and oleic acid. In the present invention, the acyl group may have a single alkyl group or alkenyl group, but the fatty acid corresponding to R ^3a —CO— is a mixed fatty acid, and the cleaning effect and foaming power From the point of view, it is preferable. A preferable mixed fatty acid composition is the following composition as mass% in the fatty acid. In addition, although it does not interfere even if it contains other fatty acids, it is desirable from the point of storage stability that it is prepared so that the total mass of the fatty acid shown below may be 100 mass%. Caprylic acid; 1-10% by mass, preferably 3-6% by mass, capric acid; 1-12% by mass, preferably 3-7% by mass, lauric acid; 44-60% by mass, preferably 44-55% by mass , Myristic acid; 10-22% by mass, preferably 10-17% by mass, palmitic acid; 4-10% by mass, preferably 6-10% by mass, stearic acid; 0-10% by mass, preferably 1-7% by mass %, Oleic acid; 0 to 17% by mass, preferably 1 to 17% by mass.

In the general formula (3), R ^3b is a methyl group or an ethyl group, and is preferably a methyl group from the viewpoint of cleaning effect, foaming property, and storage stability. R ^3c is an alkylene group having 1 to 3 carbon atoms or an alkenylene group, and is preferably a linear or branched alkylene group having 2 or 3 carbon atoms from the viewpoint of the cleaning effect.

  Preferred specific examples of the alkanol amide include N-ethanol-N-methyloctanoic acid amide, N-ethanol-N-methyldecanoic acid amide, N-ethanol-N-methyldodecanoic acid amide, N-ethanol-N-methyltetradecanoic acid amide, N-ethanol-N-methylhexadecanoic acid amide, N-ethanol-N-methyloctadecanoic acid amide, N-isopropanol-N-ethyldodecanoic acid amide, N-ethyl-N-isopropanol oleic acid amide, N-ethyl-N- Mention may be made of isopropanol isostearamide, N-ethanol-N-methyl coconut fatty acid amide, N-ethanol-N-methyl palm kernel fatty acid amide.

  As an example of the amine oxide of this invention, what is shown to following General formula (4) is suitable.

[Wherein, R ^4a is a linear alkyl group or alkenyl group having 8 to 16, preferably 10 to 16, particularly preferably 10 to 14 carbon atoms, and R ^4c and R ^4d are alkyl groups having 1 to 3 carbon atoms. Or it is a hydroxyalkyl group. R ^4b is an alkylene group having 1 to 5 carbon atoms, preferably 2 or 3 carbon atoms. Y is a group selected from —COO—, —CONH—, —OCO—, —NHCO—, and —O—, and m is 0 or 1, preferably 1. ]

  Preferred amine oxides of the present invention include lauryl dimethylamine oxide.

  As an example of betaine of this invention, what is shown to following General formula (5) is suitable.

[Wherein, R ^5a is an alkyl group or alkenyl group having 9 to 23 carbon atoms, preferably 9 to 17 carbon atoms, particularly preferably 10 to 16 carbon atoms, and R ^5b is 1 to 6 carbon atoms, preferably 1 to 4 carbon atoms. Preferably it is 2 or 3 alkylene groups. V is a group selected from —COO—, —CONH—, —OCO—, —NHCO—, and —O—, and k is a number of 0 or 1, preferably 0. R ^5c and R ^5d are an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group, preferably a methyl group, an ethyl group or a hydroxyethyl group, and R ^5e is 1 to 1 carbon atoms which may be substituted with a hydroxy group. 5, preferably 1 to 3 alkylene groups. D is, -SO ₃ ^-, -OSO ₃ ^- is a group selected from, in particular -SO ₃ ^- is good in terms of the bleaching detergent effect. ]

  Preferred betaines of the present invention include alkyl (carbon number: 12-14) sulfobetaines.

  (D) Content of a component is 0.1-3 mass% from a foamable viewpoint, 0.1-2.5 mass% is preferable, and 0.1-2 mass% is still more preferable.

  In the present invention, the ratio of the component (b) to the component (d) is (b) / (d) = 0.5 to 5, preferably 0.8 to 4, from the viewpoint of obtaining high foamability that enhances the cleaning effect. .5, more preferably 1-4.

  Furthermore, the mass ratio of the component (c) and the component (d) maintains a high foaming property obtained by blending the component (b) and the component (d) at a specific ratio, and has a small particle size with high detergency. And (c) / (d) = 0.5 to 5, preferably 1 to 4, from the viewpoint of obtaining the foaming stability of creamy foam and further obtaining the washing bleaching power.

  In the present invention, the ratio of the component (b) and the component (d), which are specific anionic surfactants, is controlled, and the component (c) having a specific range of HLB values and the component (d) at a specific ratio. When used in combination, a bleaching composition having a large foaming effect and a foam stabilizing effect of creamy foam having a small particle diameter and a high cleaning effect against oil stains can be obtained. The bleaching composition of the present invention uses both the component (b) and the component (d), but can obtain a higher detergency against oil stains than using only the component (b). In the bleaching composition of the present invention, the component (d) is used in combination with the component (c) (nonionic surfactant having an HLB of 10 to 15). Since a sufficient foam increasing effect is obtained as compared with the case where the surfactant (HLB = 9 to 10) is used in combination, a higher detergency against oil stains can be obtained.

  The bubbles formed from the bleach composition of the present invention are preferably creamy bubbles having a small particle size from the viewpoint of obtaining high foam stability and a high bleaching effect. In particular, the bleaching composition of the present invention preferably generates bubbles having an average particle size of 50 to 1000 μm, more preferably 50 to 800 μm, and particularly 100 to 800 μm according to the following test method.

<Bubble test method>
50 g of a 20-fold diluted solution of ion-exchanged water (2.50 g) in a 200 ml tall beaker (55 mm) is placed in a 200 ml tall beaker (55 mm). Stirring is performed at 6000 rpm for 5 minutes using 4 blades having a diameter of 3 cm and covered with a cylindrical metal (height 3 × diameter 3.5 cm). Immediately thereafter, the microscope was observed at 400 times magnification. The obtained image was subjected to image analysis to obtain an average particle size.

  The composition according to the present invention is in the form of a liquid composition such as an aqueous solution obtained by dissolving the components (a) to (d) in the water (e), and the water used is dissolved in a small amount of water. From the viewpoint of storage stability, ion-exchanged water or distilled water from which the metal is removed is preferred. The content of the component (e) is preferably 75 to 98% by mass, more preferably 80 to 95% by mass.

  The bleaching composition of the present invention preferably has a pH at 20 ° C. of 1 to 7, more preferably 2 to 6.5, and still more preferably 2.5 to 6. As pH adjusters for adjusting to such pH, acid agents such as inorganic acids such as hydrochloric acid and sulfuric acid, organic acids such as citric acid, succinic acid, malic acid, fumaric acid, tartaric acid, malonic acid and maleic acid, Sodium hydroxide, potassium hydroxide, ammonia and derivatives thereof, amine salts such as monoethanolamine, diethanolamine, triethanolamine, etc., preferably using an alkali agent such as sodium carbonate or potassium carbonate alone or in combination, In particular, it is preferable to use an acid selected from hydrochloric acid and sulfuric acid and an alkali agent selected from sodium hydroxide and potassium hydroxide. The pH is measured using a pH meter F52 manufactured by HORIBA, Ltd. and a pH electrode 6367-10D.

  The composition of the present invention preferably has a low viscosity from the viewpoint of obtaining a sufficient liquid flow rate and flow rate during spraying and performing a smooth spray operation, and preferably has a viscosity at 20 ° C. of 20 mPa · s or less. 1 to 10 mPa · s is more preferable, and 3 to 8 mPa · s is particularly preferable.

  In addition, the viscosity of this invention is measured as follows. To the B-type viscometer manufactured by Tokyo Keiki Co., Ltd., the rotor number no. Prepare the one with 1 Place the sample in a tall beaker, set the sample adjusted to 20 ° C. in a constant temperature bath at 20 ° C. in the viscometer, set the rotation speed of the rotor to 60 rpm, and measure the viscosity 60 seconds after starting the rotation of the present invention. Viscosity.

  In order to adjust to such a viscosity, a viscosity adjusting preparation can be blended in the present invention. As the viscosity modifier, (i) an alkyl group having 1 to 3 carbon atoms, or benzenesulfonic acid which may be substituted with 1 to 3 hydroxy groups, (ii) polyethylene glycol or polypropylene glycol having a molecular weight of 3000 to 100,000, (Iii) a sugar polymer compound selected from xanthan gum, guar gum, and carboxymethyl cellulose, (iv) an alkyl group or alkenyl group having 12 to 20 carbon atoms, preferably 14 to 18 carbon atoms, and an average addition mole number of 60 to 200, preferably A nonionic surfactant having 100 to 200 polyoxyethylene chains, and (v) a reaction product of the nonionic surfactant of (iv) with a diepoxy compound such as vinylcyclohexene diepoxide, etc. it can. The content of the viscosity modifier in the composition is 0 to 10% by mass, preferably 0.01 to 5% by mass.

  The composition according to the present invention can contain a sequestering agent for the purpose of improving the bleaching effect. For example, (1) phosphoric acid compounds such as phytic acid or alkali metal salts or alkanolamine salts thereof, (2) ethane-1,1-diphosphonic acid, 1-hydroxyethylidene-1,1-diphosphonic acid (ethane- 1-hydroxy-1,1-diphosphonic acid) and its derivatives, ethane such as ethanehydroxy-1,1,2-triphosphonic acid, ethane-1,2-dicarboxy-1,2-diphosphonic acid, methanehydroxyphosphonic acid Acid or an alkali metal salt or alkanolamine salt thereof, (3) phosphono such as 2-phosphonobutane-1,2-dicarboxylic acid, 1-phosphonobutane-2,3,4-tricarboxylic acid, α-methylphosphonosuccinic acid, etc. Carboxylic acid or alkali metal salt or alkanolamine salt thereof, (4) Aspartic acid, gluta Acids, amino acids such as glycine or alkali metal salts or alkanolamine salts thereof, (5) nitrilotriacetic acid, iminodiacetic acid, ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, glycol etherdiaminetetraacetic acid, hydroxyethyliminodiacetic acid, Aminopolyacetic acid such as ethylenetetramine hexaacetic acid, diencoric acid or alkali metal salt or alkanolamine salt thereof, (6) diglycolic acid, oxydisuccinic acid, carboxymethyloxysuccinic acid, citric acid, lactic acid, tartaric acid, oxalic acid, malic acid Organic acids such as oxydisuccinic acid, gluconic acid, carboxymethyl succinic acid, carboxymethyl tartaric acid or alkali metal salts or alkanolamine salts thereof, (7) alkali aluminosilicates represented by zeolite A Mention may be made of metal salts or alkanolamine salts, (8) aminopoly (methylenephosphonic acid) or alkali metal salts or alkanolamine salts thereof, or polyethylenepolyamine poly (methylenephosphonic acid) or alkali metal salts or alkanolamine salts thereof.

  Among these, at least one selected from the group consisting of (2), (5), (6) and (7) is preferable, and at least one selected from the group consisting of (2) is more preferable. The content of the sequestering agent is preferably 0.005 to 5% by mass, more preferably 0.01 to 2% by mass.

  The composition of the present invention includes, as other components, bleach activators, fluorescent brighteners, fragrances, colorants such as dyes and pigments, anti-staining agents, silicones, hydrotropes, bactericides, antibacterial agents Known components that can be usually added to a bleaching agent, such as an agent, an ultraviolet absorber, and a bleaching base stabilizer can be included.

  As the bleach activator, an alkanoyloxybenzene type bleach activator is preferable, and alkanoyloxybenzenesulfonic acid having an alkanoyl group having 8 to 14 carbon atoms, preferably 8 to 13 carbon atoms or 8 to 14 carbon atoms, preferably 8 carbon atoms. Alkanoyloxybenzenecarboxylic acids having -13 alkanoyl groups or their salts are preferred. More specifically, preferred examples include octanoyloxy-p-benzenesulfonic acid, nonanoyloxy-p-benzenesulfonic acid, 3,5,5-trimethylhexanoyloxy-p-benzenesulfonic acid, decanoyloxy-p-benzene. Sulfonic acid, dodecanoyloxy-p-benzenesulfonic acid, octanoyloxy-o- or -p-benzenecarboxylic acid, nonanoyloxy-o- or -p-benzenecarboxylic acid, 3,5,5-trimethylhexanoyloxy- o- or -p-benzenecarboxylic acid, decanoyloxy-o- or -p-benzenecarboxylic acid, dodecanoyloxy-o- or -p-benzenecarboxylic acid, and salts thereof. As the salt, sodium salt, potassium salt, and magnesium salt are preferable, and sodium salt is particularly preferable from the viewpoint of solubility.

  Among these, nonanoyloxy-p-benzenesulfonic acid, decanoyloxy-p-benzenecarboxylic acid, dodecanoyloxy-p-benzenesulfonic acid and salts thereof are particularly preferable from the viewpoint of bleaching effect.

  The bleaching agent composition of the present invention contains 0 to 5% by weight, preferably 0.01 to 3% by weight, particularly preferably 0.1 to 1% by weight of the bleach activator.

  The content of silicones is preferably less than 0.5% by mass from the viewpoints of foamability and foam stability.

<Bleach product>
The bleaching composition of the present invention can provide an excellent washing and bleaching effect by directly causing bubbles to act on the soil using a trigger sprayer having a foam formation mechanism. For this reason, it is preferable to make it act on foam to be bleached, and it is more preferable to use it as a bleach product in a container filled with a container having a trigger sprayer having a foam formation mechanism.

  As trigger type sprayers that can be used in the present invention, FIGS. 1 and 2 of Japanese Patent Application Laid-Open No. 2004-76006, FIGS. 1 and 2 of Japanese Patent Application Laid-Open No. 11-100594, FIGS. 1 to 6 of Japanese Utility Model No. 3044068, JP-A 2000-185247 FIGS. 1-9, JP-A 2001-334178 FIGS. 1-10 trigger, JP-A 2002-20266, JP-A 7-256162, JP-A 8-71463, JP-A-9 Reference can be made to -285746, JP-A-10-85637, JP-A-7-9451, and JP-A-7-9452.

In this invention, after making the foam formed from the said bleaching composition of this invention adhere to clothing, it wash | cleans with a general weak alkaline detergent. Adhesion amount of foam is 0.1 to 1 g / cm ^2, preferably preferred for the purpose of obtaining a high bleaching effect is 0.1 to 0.5 g / cm ^2. Moreover, after making foam adhere, it is suitable to wash | clean after leaving for 1 to 600 minutes, Preferably it is 3 to 300 minutes, Most preferably, it is 5 to 60 minutes.

<Blending ingredients>
The components used in the following examples and comparative examples are as follows. The liquid bleach composition of Table 1 was prepared using these, and the following evaluation was performed. The results are shown in Table 1. In addition, Table 1 also shows the pH, average particle diameter, and viscosity of the liquid bleach composition.

Hydrogen peroxide b-1 linear alkyl (carbon number 11-15) sodium benzenesulfonate b-2; α-olefin (carbon number 14-18) sodium sulfonate b-3; α-sulfo fatty acid sodium ester (sodium salt of ester of α-sulfo fatty acid having 14 to 16 carbon atoms and alcohol having 1 carbon atom)
C-1; polyoxyethylene lauryl ether (oxyethylene average addition mole number 7, HLB12.1)
D-1; N-ethanol-N-methyloctanoic acid amide d-2; ralyl dimethylamine oxide d-3; lauric acid amidopropyl hydroxysulfobetaine sequestering agent; 1-hydroxyethylidene-1, 1-Diphosphonic acid (Day Quest 2010 (Day Quest manufactured by Solusia))
・ E-1: Ion exchange water

(1) Evaluation method of foaming property In a 200 ml plastic measuring cylinder (inner diameter 40 mm), a commercially available trigger container (attack and foam spray manufactured by Kao Corporation / Manufacturing lot number: W1410474, 0.1 per stroke. Spray 8g, spray the liquid bleach composition of Table 1 10 times using the same after removing the contents, washing with water several times, filling the composition with dry), and using the composition at that time From the mass and the volume of foam, foamability (ml / g) was calculated from the following calculation formula (1-1). From the foaming value immediately after spraying and after 5 minutes, foam stability (%) was calculated by the following calculation formula (1-2).
Foaming property (ml / g) = foam volume (ml) / amount of composition (g) (1-1)
Foam stability (%) = [foamability after 5 minutes (ml / g) / foamability immediately after (ml / g)] × 100 (1-2)

(2) Average particle size of bubbles 50 g of a 20-fold diluted solution of ion-exchanged water (2.50 g) in Table 1 was placed in a 200 ml tall beaker (55 mm). Stirring is performed at 6000 rpm for 5 minutes using a TOKUSUKIKA ROBO MICS No.011002 (the stirring unit is a four-blade having a diameter of 3 cm and covered with a cylindrical metal (height 3 × diameter 3.5 cm)). . Immediately thereafter, the microscope was observed at 400 times magnification. The obtained image was subjected to image analysis to obtain an average particle size. The average particle size is shown in Table 1.

(3) Evaluation method of bleaching performance Using each of the trigger containers used in the above (1) filled with each composition, each of the four meat sauce-contaminated cloths prepared below was sprayed once to foam the composition. It was applied with. At that time, the creaminess of the applied foam was determined by the following panel evaluation points by 10 panelists, and the results are shown in Table 1. Results were expressed as average points.
5: Foam is very fine and white 4: Foam is fine and slightly white 3: Normal 2: Foam is coarse and not very white 1: Foam is very coarse and almost white

  Furthermore, after leaving the meat sauce-contaminated cloth coated with the composition at 20 ° C. for 5 minutes, it is washed with a tartometer using a commercial detergent solution with a concentration of 0.0667% by mass (80 rpm × 10 minutes), and then tap water. After excessive drying, the bleaching rate was determined by the following formula. Table 1 shows the average value of the bleaching rate of the four soiled cloths.

  The reflectance was measured using NDR-10DP manufactured by Nippon Denshoku Industries Co., Ltd. using a 460 nm filter.

* Preparation of Meat Sauce Contaminated Cloth Kagome (Made) Meat Sauce (Ripe Tomato Meat Sauce / Canned 259g Canned / Manufacturing Lot Number: D3611JI) was removed with a mesh (opening: 500 μm) and the resulting liquid was removed. Heated to boiling. Cotton gold cloth # 2003 was immersed in this solution and boiled for about 15 minutes. After removing from the fire as it was for about 2 hours and leaving it to room temperature, the cloth was taken out, the excess adhering meat sauce solution was removed with a spatula and allowed to dry naturally. Then, it was pressed and subjected to an experiment as a 10 cm × 10 cm test cloth.

  From the above results, by blending the component (d) of the present invention with the component (b) or the component (c) at a specific ratio, a large foaming action of creamy foam with a small particle size, It was confirmed that a stabilizing effect was obtained and a high washing bleaching effect was obtained.

Claims (9)

(A) 0.1 to 6% by mass of hydrogen peroxide, (b) 0.1 to 2% by mass of a sulfonic acid group-containing surfactant, (c) a nonionic surfactant having an HLB of 10 to 15, (d) It contains 0.1 to 3% by mass of one or more surfactants selected from alkanol amides, amine oxides, and betaines, and (e) water, and (b) / (d) = 0.5 to 5, and (c) / (d) = 0.5~5 der is, bleach composition viscosity at 20 ° C. is 1 to 10 mPa · s. Wherein (b) a sulfonic acid group-containing surfactants, alkyl benzene sulfonate, bleach olefin sulfonate according to claim 1, and one or more kinds of surfactants selected from α- sulfofatty acid ester salt object. The (c) nonionic surfactant having an HLB of 10 to 15 is at least one selected from a compound of the following general formula (2-1) and a compound of the following general formula (2-2). 2. The bleach composition according to 2.
^{_{R 2a -O- (C 2 H 4}} O) u -H (2-1)
[Wherein, R ^2a represents an alkyl group having 10 to 14 carbon atoms. u is a number from 4 to 12. ]
^{_{R 2b -O - [(C 2}} H 4 O) t / (C 3 H 6 O) s] -H (2-2)
[Wherein, R ^2b represents an alkyl group having 10 to 14 carbon atoms. t and s are each independently a number from 2 to 12, and t + s is a number from 4 to 12. Further, ethylene oxide (C ₂ H ₄ O) and propylene oxide (C ₃ H ₆ O) may be random or block adducts. ] The bleaching composition according to any one of claims 1 to 3, wherein (c) 0.1 to 20% by mass of a nonionic surfactant having an HLB of 10 to 15 is contained . The bleaching composition according to any one of claims 1 to 4 , which is used by being filled in a container having a trigger sprayer having a foam formation mechanism. A bleach product obtained by filling the bleach composition according to any one of claims 1 to 5 into a container having a trigger sprayer having a foam formation mechanism. A bleaching method in which the bleaching agent composition according to any one of claims 1 to 5 is attached in a foam form to a bleaching target using a trigger sprayer having a foam formation mechanism. Foam adhesion amount is 0.1-1 g / cm ² The bleaching method according to claim 7. The bleaching method according to claim 7 or 8, which is allowed to stand for 5 to 60 minutes after the foam is adhered.