JP4916679B2 - Liquid bleach article - Google Patents

Description

  The present invention relates to a liquid bleaching article containing a liquid bleaching composition in a discharge container equipped with a trigger sprayer, and a cleaning method using the liquid bleaching composition. In particular, it relates to liquid bleach articles for garments and washing methods for garments.

  Since spilled stains and yellowing of underwear are stains that cannot be removed with ordinary detergents, methods such as using a bleaching agent or using a detergent with a bleaching agent are generally used. Bleaching agents can be divided into chlorine bleaching agents and oxygen bleaching agents, but chlorine bleaching agents are limited in the fibers that can be used, cannot be used for colors and patterns, and have a unique odor. In recent years, oxygen-based bleaching agents that do not have these drawbacks have become extremely popular. Among them, the liquid bleach composition containing hydrogen peroxide as a main base is preferred and used because it can be used for colors and patterns and can be directly applied to dirt.

  Further, from the viewpoint of convenience, an article in which a liquid bleach composition is stored in a discharge container is known (see Patent Documents 1, 2, 3, 4, and 5). In a discharge container that discharges a liquid material, a discharge container in which a discharge device such as a trigger sprayer or a pump sprayer is attached to the mouth of the container body, or a liquid material in the form of foam or shower by squeezing a bottle There are many types of discharge containers such as squeeze type discharge containers. In these containers, it is necessary to consider liquid dripping and clogging during use.

Although it is preferable to use a nonionic surfactant from the viewpoint of cleaning performance, it is generally used in combination with an anionic surfactant because it tends to cause clogging. On the other hand, anionic surfactants tend to be too foamy, especially when a trigger sprayer is used, and the foam stability is too good, so it tends not to penetrate into objects to be cleaned (clothing, etc.). There is.
JP-A-5-156293 Japanese National Patent Publication No. 11-500778 Japanese Patent Laid-Open No. 11-100594 JP 2004-76006 A JP-T-2001-503814

  An object of the present invention is to provide a liquid bleaching article and a liquid bleaching composition that are excellent in preventing dripping and clogging, and having excellent washing performance and foaming property, without substantially using an anionic surfactant. It is in providing the washing | cleaning method using this.

The present invention is a liquid bleaching article containing the liquid bleaching composition (I) in a discharge container (B) equipped with a trigger sprayer that discharges the liquid bleaching composition (I) in a foam form. And
The liquid bleach composition (A) comprises (a) 0.1 to 10% by mass of hydrogen peroxide, (b) 1 to 20% by mass of a nonionic surfactant, and (c) a phenol solvent 0.001 to 5%. (D) boron compound 0.01 to 5% by mass, (e) 65 to 98% by mass of water, and (f) 1% by mass or less of an anionic surfactant, (c) phenol solvent / (D) It relates to a liquid bleaching article in which the mass ratio of the boron compound is 10/1 to 1/50.

  The present invention also includes (a) 0.1 to 10% by mass of hydrogen peroxide, (b) 1 to 20% by mass of a nonionic surfactant, (c) 0.001 to 5% by mass of a phenolic solvent, (d (B) 0.01-5% by mass of boron compound, (e) 65-98% by mass of water, and (f) 1% by mass or less of an anionic surfactant, (c) phenol solvent / (d) boron compound The present invention relates to a cleaning method in which a liquid bleaching agent composition (A) having a mass ratio of 10/1 to 1/50 is used by applying it to an object to be cleaned in a foam form.

The following are mentioned as a preferable aspect of this invention.
(I) Furthermore, the liquid bleaching agent article (a) contains (g) 0.05-5% by mass of a phosphonic acid-based metal scavenger,
(Ii) Further, the liquid bleach composition (a) is (j) (j1) a monohydric alcohol having 1 to 5 carbon atoms, (j2) a polyhydric alcohol having 2 to 12 carbon atoms, (j3) A liquid bleaching article containing 0.05 to 10% by mass of an alcohol compound selected from the group consisting of a compound represented by formula (1) and (j4) a compound represented by the following general formula (2):

R ¹ O (C ₂ H ₄ O) _e (C ₃ H ₆ ) _f R ² (1)
R ³ OCH ₂ CH (OH) CH ₂ OH (2)
[Wherein, R ¹ and R ² each represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a phenyl group or a benzyl group, except for the case where both R ¹ and R ² are hydrogen atoms. e represents a number from 0 to 10, and f represents a number from 0 to 10, except when both e and f are 0. R ³ represents an alkyl group having 1 to 8 carbon atoms. ]
(Iii) a liquid bleaching article in which the pH of the liquid bleaching composition (a) at 20 ° C. is 7 or less,
(Iv) A cleaning method in which the object to be cleaned is clothing.

  According to the present invention, there is provided a liquid bleaching article excellent in preventing dripping and clogging, having excellent cleaning performance and foaming property (particularly foaming property after storage), and a cleaning method using the liquid bleaching composition. can get.

<Liquid bleach composition (I)>
The liquid bleach composition (a) according to the present invention comprises (a) hydrogen peroxide (hereinafter referred to as component (a)) 0.1 to 10% by mass, (b) a nonionic surfactant (hereinafter referred to as (b) ) Component] 1-20 mass%, (c) phenolic solvent [hereinafter referred to as component (c)] 0.001-5 mass%, (d) boron compound (hereinafter referred to as component (d)) 0.01 ~ 5% by mass, (e) water (hereinafter referred to as component (e)) 65 to 98% by mass, and (f) an anionic surfactant (hereinafter referred to as component (f)) 1% by mass or less And the mass ratio of (c) phenol solvent / (d) boron compound is 10/1 to 1/50.

  The pH at 20 ° C. of the liquid bleach composition (a) according to the present invention is preferably 7 or less, more preferably 1 to 6.5, still more preferably 2 to 5, particularly preferably 2 in terms of stability. ~ 4. PH adjusting agents for adjusting to such pHs include inorganic acids such as hydrochloric acid and sulfuric acid, or acid agents such as organic acids such as citric acid, succinic acid, malic acid, fumaric acid, tartaric acid, malonic acid, maleic acid, etc. Or alkali agents such as sodium hydroxide, potassium hydroxide, ammonia and derivatives thereof, amine salts (monoethanolamine, diethanolamine, triethanolamine, etc.), sodium carbonate, potassium carbonate and the like are preferably used alone or in combination. In particular, it is preferable to use an acid selected from hydrochloric acid and sulfuric acid, or an alkali agent selected from sodium hydroxide and potassium hydroxide.

  In addition, the liquid bleach composition (i) according to the present invention has a viscosity at 20 ° C. of 3 to 100 mPa · s, more preferably 3 to 80 mPa · s, particularly 4 to 60 mPa · s. It is suitable at the point which discharges as a point, especially a preferable foam. In order to adjust to such a viscosity, a viscosity modifier can be blended in the present invention. (1) As a viscosity modifier, an alkyl group having 1 to 3 carbon atoms, or benzenesulfonic acid optionally substituted with 1 to 3 hydroxy groups, (2) polyethylene glycol or polypropylene glycol having a weight average molecular weight of 3000 to 100,000 , (3) a sugar polymer compound selected from xanthan gum, guar gum, and carboxymethyl cellulose, (4) 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 substance having 100 to 200 polyoxyethylene chains, and (5) a reaction product of the nonionic substance and a diepoxy compound such as vinylcyclohexene diepoxide can be used. The ratio of such a viscosity modifier is preferably 0 to 10% by mass, more preferably 0.01 to 5% by mass in the liquid bleach composition (A).

[(A) component]
The liquid bleach composition (a) according to the present invention contains 0.1 to 10% by mass of hydrogen peroxide as the component (a). Preferably (a) component is 0.5-8 mass%, More preferably, it is 1-6 mass%, Most preferably, it contains 1.5-5 mass%. In such a range, an excellent bleaching effect and safety can be obtained.

[Component (b)]
The liquid bleach composition (I) according to the present invention contains 1 to 20% by mass of a nonionic surfactant as component (b). Preferably, the component (b) is contained in an amount of 2 to 18% by mass, more preferably 3 to 15% by mass, and particularly preferably 5 to 12% by mass. In such a range, an excellent bleaching effect and good foam characteristics can be obtained.

  From the standpoint of excellent bleaching effect and long-term slidability when using a trigger sprayer, the mass ratio of (a) hydrogen peroxide / (b) nonionic surfactant is 5/1 to 1 / 5 is preferable, 3/1 to 1/3 is more preferable, and 2/1 to 1/1 is still more preferable.

  As the component (b), alkyl glycoside, polyoxyethylene alkyl ether, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene fatty acid ester, oxyethyleneoxypropylene block polymer (pluronic), fatty acid monoglyceride, amine oxide, etc. A nonionic surfactant having at least one linear or branched alkyl group or alkenyl group having 8 to 24 carbon atoms, or aryl substituted with a linear or branched chain alkyl group having 8 to 24 carbon atoms Nonionic surfactants having at least one group can be mentioned. Among these, polyoxyethylene alkyl ether (especially ethylene oxide (hereinafter referred to as EO) average added mole number of 7 to 12, carbon number of alkyl group of 10 to 16) is preferable.

[Component (c)]
The liquid bleach composition (a) according to the present invention contains 0.001 to 5% by mass of a phenol solvent as the component (c). Preferably (c) component is 0.005-4 mass%, More preferably, it is 0.01-3 mass%, More preferably, it is 0.05-2 mass%, Most preferably, 0.1-1 mass% is contained. In such a range, it is possible to obtain excellent clogging prevention and long-term maintenance of stability.

  (C) As a component, the compound which has a phenolic hydroxyl group, the ester derivative of a phenolic hydroxyl group, an ether derivative, etc. are mentioned. More specifically, as such a compound, cresol, thymol, chlorophenol, bromophenol, methoxyphenol, nitrophenol, hydroxybenzoic acid, salicylic acid, hydroxybenzenesulfonic acid, di-t-butyl-hydroxytoluene, naphthol, Examples include hydroquinone, catechol, pyrogallol, phenoxyethanol, and phenol. Among these, 4-methoxyphenol, 4-hydroxybenzoic acid, hydroquinone, and catechol are more preferable, and 4-methoxyphenol and 4-hydroxybenzoic acid are more preferable among these, considering the stability of the phenolic solvent. 4-methoxyphenol is particularly preferred.

  The mass ratio of (b) nonionic surfactant / (c) phenolic solvent is preferably 100/1 to 1/1, and 80/1 to 5 in terms of obtaining excellent bleaching effect and long-term maintenance of stability. / 1 is more preferable, 60/1 to 10/1 is more preferable, 50/1 to 15/1 is still more preferable, and 40/1 to 20/1 is particularly preferable.

[Component (d)]
The liquid bleach composition (a) according to the present invention contains 0.01 to 5% by mass of a boron compound as the component (d). In terms of obtaining excellent clogging prevention and long-term maintenance of stability, 0.05 to 3% by mass is more preferable, 0.1 to 2% by mass is still more preferable, and 0.5 to 1% by mass is particularly preferable. preferable.

  Examples of the component (d) include boric acid and borates, among which sodium tetraborate · pentahydrate and sodium borate · 10 hydrate are preferable in production.

  In addition to obtaining excellent bleaching effect and long-term maintenance of stability, the mass ratio of (c) phenolic solvent / (d) boron compound is 10/1 to 1/50 in terms of foamability. 5/1 to 1/30 is preferable, 2/1 to 1/20 is more preferable, 1/1 to 1/10 is further preferable, and 1/4 to 1/8 is particularly preferable.

[(E) component]
The liquid bleach composition (I) according to the present invention contains 65 to 98% by mass of water as the component (e). As the water, ion-exchanged water or distilled water from which a metal dissolved in a minute amount is removed is preferable from the viewpoint of storage stability. The content of the component (e) in the liquid bleach composition (A) is preferably 70 to 95% by mass, more preferably 75 to 90% by mass in terms of stability and dischargeability.

[Component (f)]
The liquid bleach composition (a) according to the present invention can contain an anionic surfactant as the component (f) from the viewpoint of cleaning performance, but from the viewpoint of permeability to clothing, the content is 1% by mass or less, preferably 0.5% by mass or less, more preferably 0.1% by mass or less, still more preferably 0.05% by mass or less, and particularly preferably 0.01% by mass or less. Preferably not.

  (F) As a component, an anionic surfactant having at least one linear or branched alkyl group or alkenyl group having 8 to 24 carbon atoms, or a linear or branched alkyl group having 8 to 24 carbon atoms Anionic surfactants having at least one aryl group substituted with an alkylbenzene sulfonate, soap, alkyl sulfate, polyoxyethylene alkyl sulfate, aliphatic α-sulfomethyl ester, An alpha olefin sulfonic acid etc. can be mentioned.

[Other ingredients]
The liquid bleach composition (a) according to the present invention contains 0.05 to 5% by mass of a phosphonic acid-based metal scavenger as a component (g) from the viewpoint of obtaining excellent bleaching effect and long-term maintenance of stability. It is preferably 0.1 to 4% by mass, more preferably 0.5 to 3% by mass, and particularly preferably 1 to 2% by mass.

  As the component (g), 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, hydroxymethanephosphonic acid, ethylenediaminetetra (methylenephosphonic acid), nitrilotri (methylenephosphonic acid), 2-hydroxyethyliminodi (methylenephosphonic acid), hexa Examples thereof include organic phosphonic acid derivatives such as methylenediaminetetra (methylenephosphonic acid) and diethylenetriaminepenta (methylenephosphonic acid) and salts thereof. Among these, 1-hydroxyethane-1,1-diphosphonic acid and its salt are preferable.

  The liquid bleach composition (a) according to the present invention preferably contains a bleach activator as the component (h) for the purpose of improving the bleaching effect, and the content in the composition (a) is 0.1. -5 mass% is more preferable, 0.2-3 mass% is still more preferable, and 0.4-1 mass% is especially preferable.

  As the component (h), 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 liquid bleach composition (a) according to the present invention preferably contains a dispersant as the component (i) for the purpose of enhancing the bleaching effect, and the content in the composition (a) is 0.05 to 14 mass. % Is more preferable, and 0.1 to 8% by mass is still more preferable. In particular, polyacrylic acid or a salt thereof or polymethacrylic acid or a salt thereof having a weight average molecular weight of 5,000 to 40,000, preferably 5,000 to 10,000, a weight average molecular weight of 10,000 to 100,000, preferably 30,000 to 70,000. A nonionic polymer selected from a carboxylic acid polymer selected from a copolymer of acrylic acid and maleic acid or a salt thereof, and / or a polyethylene glycol having a weight average molecular weight of 4,000 to 20,000, preferably 5,000 to 10,000 is preferable.

  The liquid bleach composition (a) according to the present invention preferably contains an alcohol compound as the component (j) for the purpose of enhancing the bleaching effect, and the content in the composition (a) is 0.05 to 10. % By mass is preferred, 0.05 to 10% by mass is more preferred, 0.05 to 3% by mass is still more preferred, and 0.1 to 2% by mass is particularly preferred.

  As the component (j), (j1) a monohydric alcohol having 1 to 5 carbon atoms, (j2) a polyhydric alcohol having 2 to 12 carbon atoms, (j3) a compound represented by the following general formula (1), and (J4) Alcohol compounds selected from the group consisting of compounds represented by the following general formula (2) are preferred.

R ¹ O (C ₂ H ₄ O) _e (C ₃ H ₆ ) _f R ² (1)
R ³ OCH ₂ CH (OH) CH ₂ OH (2)
[Wherein, R ¹ and R ² each represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a phenyl group or a benzyl group, except for the case where both R ¹ and R ² are hydrogen atoms. e represents a number from 0 to 10, and f represents a number from 0 to 10, except when both e and f are 0. R ³ represents an alkyl group having 1 to 8 carbon atoms. ]

  Examples of the monohydric alcohol having 1 to 5 carbon atoms in (j1) include ethanol, propyl alcohol, and isopropyl alcohol. By blending these lower alcohols, the stability of the system at low temperatures can be further improved.

  Examples of the polyhydric alcohol having 2 to 12 carbon atoms in (j2) include isoprene glycol, 2,2,4-trimethyl-1,3-pentanediol, 1,8-octanediol, 1,9-nonanediol, and ethylene glycol. , Propylene glycol, diethylene glycol, dipropylene glycol, glycerin, sorbitol and the like.

In the general formula (1), the compound (j3) preferably has 1 to 4 carbon atoms when R ¹ and R ² are alkyl groups. Moreover, in general formula (1), e and f of the average addition mole number of EO and a propylene oxide are the numbers of 0-10 respectively (except when the case where both e and f are 0), The order of addition is not particularly limited, and may be randomly added. Specific examples of the compound (j3) include ethylene glycol monobutyl ether, dipropylene glycol dimethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monobutyl ether, propylene glycol monoethyl ether, propylene glycol dimethyl ether, Polyoxyethylene (p = 2 to 3), polyoxypropylene (p = 2 to 3) dimethyl ether (p represents the average number of moles added, the same applies hereinafter), polyoxyethylene (p = 1 to 4) phenyl ether, phenyl carb Toll, phenyl cellosolve, benzyl carbitol and the like can be mentioned. Among these, propylene glycol monomethyl ether, diethylene glycol monobutyl ether, and polyoxyethylene (p = 1 to 4) monophenyl ether are preferable from the viewpoints of detergency and usability.

The compound of (j4) include alkyl glyceryl ether compounds, preferably the general formula (2) R ³ Compounds of the alkyl group having 3 to 8 carbon atoms in the.

  Among these, alcohol compounds (j1) to (j4) are preferable in order to satisfy the properties of the present invention, and in particular, ethanol, isopropyl alcohol, ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, glycerin, isoprene glycol, propylene A solvent selected from glycol monomethyl ether, propylene glycol monoethyl ether, pentyl glyceryl ether, octyl glyceryl ether, and polyoxyethylene (p = 1 to 4) monophenyl ether is preferred.

  In order to increase the bleaching effect on bleached fibers, the liquid bleach composition (i) according to the present invention is used as a fluorescent whitening agent, such as Tinopearl CBS (manufactured by Ciba Specialty Chemicals), Tinopearl SWN (Ciba Specialty Chemicals). (Manufactured by Kogyo Co., Ltd.), fluorescent whitening agents such as color index fluorescent whitening agents 28, 40, 61 and 71, and enzymes (cellulase, amylase, protease, lipase) to improve bleaching performance. it can. Moreover, you may mix | blend appropriate amounts of various trace additives, such as coloring agents, such as dye and a pigment, a fragrance | flavor, silicones, a disinfectant, and an ultraviolet absorber.

<Discharge container>
The discharge container according to the present invention includes a storage section for the liquid bleach composition (I) and a trigger sprayer as a means for discharging the liquid bleach composition (I) in the form of foam.

  The trigger sprayer according to the present invention includes a component member that slides on each other and a member that constitutes the trigger sprayer by fitting. For example, examples of the constituent members that slide with each other include a piston and a cylinder of a trigger sprayer. Moreover, as a member which comprises a trigger type sprayer by fitting, the liquid passage with respect to a pump housing, etc. are mentioned.

<Liquid bleach article>
The liquid bleach article of the present invention is obtained by filling the above-mentioned liquid bleach composition (I) into the above discharge container, and can be used as a bleaching agent for hard surfaces and a bleaching agent for clothing. The liquid bleach article of the present invention is more preferred as a clothing bleach.

  From the viewpoint of safety and bleaching performance, it is preferable to use the liquid bleach composition (i) by discharging it in the form of foam. In particular, in the present invention, the term “foam” means that the apparent volume per unit mass of the composition when adhered to the target surface is twice or more due to inclusion of bubbles, and doubles even after 1 minute has passed. A state in which the above apparent volume is maintained is preferable. Further, the bubbles constituting the foam are preferably an average bubble diameter of 1 to 10,000 μm, more preferably 10 to 5000 μm, and particularly preferably 100 to 3000 μm. The viscosity of the composition discharged in the form of foam is preferably 3 to 100 mPa · s at 20 ° C., more preferably 3 to 80 mPa · s, and particularly preferably 4 to 60 mPa · s.

<Washing method>
The liquid bleaching composition (I) of the present invention is applied to the object to be cleaned in the form of foam, set for contact time, and then rinsed. Preferably, after a contact time is provided, washing is performed with a general weak alkaline detergent.

Adhesion amount of foam composition to a unit area of the cleaning object (cm ²⁾ (g) are, 0.1~1g / cm ^2, preferably obtain a high bleaching effect is 0.1 to 0.5 g / cm ² Preferred for the purpose. The contact time between the foam composition and the object to be cleaned is preferably 1 to 600 minutes, more preferably 3 to 300 minutes, and particularly preferably 5 to 60 minutes. The article to be cleaned is preferably a textile product, particularly clothing.

Examples 1-7 and Comparative Examples 1-7
300 ml of the liquid bleach composition shown in Table 1 was stored in a discharge container (see below), stored at 40 ° C. and 20% humidity, and the bleaching performance, spray nozzle state, and foaming property were observed by the following methods. The results are shown in Table 1.

(Bleaching performance evaluation)
On a bilirubin-stained cloth (corresponding to a model soil of lipophilic soil), 1 g of the liquid bleach composition stored for 1 week under the above conditions was sprayed and applied in the form of foam, and left for 1 minute. Five test cloths were prepared. After leaving, 5 test cloths were used at 100 rpm in 1 L of washing liquid (hardness 3DH, 20 degreeC) which melt | dissolved commercial detergent (attack) with the density | concentration of 0.0667% using the tart-o-meter. Washed for 10 minutes. At this time, 5 test cloths were processed in the same beaker. After washing, the test cloth was thoroughly rinsed under running water (tap water) and dried at room temperature. The bleaching rate of the test cloth after drying was calculated according to the following formula, and the average value of five test cloths was obtained. The results are shown in Table 1.

<Bilirubin contaminated cloth>
0.03 g of bilirubin (Merck reagent) was dissolved in 100 ml of chloroform. 0.06 ml of this bilirubin-chloroform solution was added dropwise to a 5 cm × 5 cm cotton cloth uniformly and dried at room temperature to obtain a bilirubin-contaminated cloth.

<Calculation method of bleaching rate>
The bleaching rate was calculated as follows.

  The reflectance was measured with ND-300A manufactured by Nippon Denshoku Industries Co., Ltd. using a 460 nm filter.

(Spray nozzle condition evaluation method)
Spraying was performed 10 times once a week, and the state after 4 weeks (the storage conditions during that time were as described above) was evaluated according to the following evaluation criteria.
Evaluation criteria ○: No change in nozzle
Δ: Slightly adhered to the nozzle
×: The nozzle is clogged (defective spray)

(Foamability evaluation)
The liquid bleach composition stored for 4 weeks under the above conditions was discharged twice from a distance of 15 cm (horizontal) onto a cotton cloth, the state of the foam formed was observed, and evaluated according to the following criteria.
Evaluation criteria ○: Beautiful bubbles that do not scatter around
△: Bubbles that are watery and scatter around
×: Does not become foam

<Liquid bleach composition>
The compositions shown in Table 1 were prepared. In all cases, the pH at 20 ° C. was adjusted as shown in Table 1 (adjusted with a 1/10 N aqueous sulfuric acid solution and a 1/10 N aqueous sodium hydroxide solution). The components in Table 1 are as follows.
-C12EO10: C10-C14 primary alcohol with an average of 10 moles of EO added-C10 alkyl glucoside: C10-C12 alkyl glucoside (degree of sugar condensation p = 1.3)
・ LAS: Sodium alkylbenzene sulfonate having 12 to 14 carbon atoms in the alkyl group ・ PHG-30: A mixture of phenol with an average of 3 mol of EO ・ BDG: Diethylene glycol monobutyl ether ・ Dequest2010: 1-hydroxyethane-1, 1-diphosphonic acid (Solucia)

<Discharge container>
・ Discharge container No. 1
In the sliding part and fitting part of the discharge container of FIG. 1 of Japanese Utility Model Publication No. 7-3744, R in the following general formula (3) is a saturated hydrocarbon group having 1 carbon atom, and R ′ is an alkyl group having 10 carbon atoms. A was a methyl group, n / m was 12, and a long chain alkyl-modified silicone having a viscosity at 25 ° C. of 500 mPa · s was applied at a rate of 0.05 g / m ² . This discharge container is a discharge container provided with a manual pump assembly (discharge means) and capable of discharging the contents of the container in a foam state by a manual operation applied to the manual pump assembly. The sliding portion of the manual pump assembly And the said long-chain alkyl modified silicone oil is apply | coated to a fitting part.

・ Discharge container No. 2
In the sliding part and fitting part of the discharge container of FIG. 1 of Japanese Utility Model Publication No. 7-3744, R in the following general formula (4) is a saturated hydrocarbon group having 1 carbon atom, and R ′ is an alkyl group having 12 carbon atoms. , R ″ is a 2-phenylpropyl group, B is a methyl group, (p + q) / r is 9, q / p is 4, and a long-chain alkylaralkyl co-modified silicone having a viscosity at 25 ° C. of 500 mPa · s is 0 It was applied at a rate of 0.05 g / m ² .

・ Discharge container No. 3
A dimethyl silicone having a viscosity of 500 mPa · s at 25 ° C. was applied at a rate of 0.05 g / m ² to the sliding portion and the fitting portion of the discharge container of FIG.

Claims (4)

A liquid bleaching article containing the liquid bleaching composition (I) in a discharge container (B) equipped with a trigger sprayer that discharges the liquid bleaching composition (I) in the form of foam,
The liquid bleach composition (A) comprises (a) 0.1 to 10% by mass of hydrogen peroxide, (b) 1 to 20% by mass of a nonionic surfactant, and (c) a phenol solvent 0.001 to 5%. Mass%, (d) boron compound 0.01-5 mass%, (e) water 65-98 mass% , ( f) anionic surfactant 0.1 mass% or less, and (j) propylene glycol monomethyl ether 0.05 to 10% by mass of an alcohol compound selected from the group consisting of monoethylene ether, diethylene glycol monobutyl ether and polyoxyethylene (average addition mole number 1 to 4) , (c) phenol solvent / (d ) mass ratio of the boron compound is Ri 10 / 1-1 / 50 der, pH at 20 ° C. is 2-5, the liquid bleach product. 2. The liquid bleach article according to claim 1, wherein the liquid bleach composition (a) further comprises (g) 0.05 to 5% by mass of a phosphonic acid-based metal scavenger. A cleaning method, wherein the liquid bleach composition (I) in the article is applied to the article to be cleaned in the form of foam from the liquid bleach article according to claim 1 or 2 . The cleaning method according to claim 3 , wherein the object to be cleaned is clothing.