JP2001207193A - Bleaching agent composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a bleaching agent which is capable of forming a uniform foam having an extremely fine texture, consequently uniformly covering the surface of stain target once when contents are sprayed from a spray container provided with a delivery apparatus such as a trigger type sprayer, etc. SOLUTION: This bleaching agent comprises (1) 0.1-10 wt.% of an alkali metal hypochlorite, (2) 0.1-5 wt.% of an alkali agent, (3) 0.1-5 wt.% of a surfactant and (4) 0.1-5 wt.% of terminal blocked type water-soluble compound of formula (I) R1O-(AO)m-(EO)n-R2 [R1 is a 1-8C monofunctional hydrocarbon group; R2 is a 1-4C alkyl group or alkenyl group; AO is a 3-8C oxyalkylene; EO is an oxyethylene group; 0<=m<=10, 0<=n<=15 and m+n is 1-15] or formula (II) R3O-[(AO)s, (EO)t]-R4 [R3 is a 1-8C monofunctional hydrocarbon group; R4 is a 1-4C alkyl group or alkenyl group; AO is a 3-8C oxyalkylene group; EO is an oxyethylene group; 0<=s<=0, 0<=t<=15 and s+t is 1-15].

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bleaching composition, and more particularly to a bleaching composition having excellent foaming properties when sprayed with a bleaching detergent from a discharge vessel equipped with a discharge device such as a trigger sprayer. The present invention relates to a bleaching composition having excellent content stability during storage.

[0002]

2. Description of the Related Art Conventionally, dirt in places where water is frequently used, such as tiles, joints, plastics, ceramics, drain pipes, etc. in bathrooms, bathtubs, kitchens, etc., around houses, Most of these substances are caused by organic matter caused by mold, and cannot be easily removed by ordinary cleaning agents containing a surfactant as a main component. To remove these stains, alkali metal hypochlorite is mainly used. A bleaching detergent as a base is frequently used.

[0003] At that time, a method of spraying a bleaching detergent using a dispenser such as a trigger type sprayer for easy use is often adopted, and a surfactant is blended to prevent scattering of mist. (JP-A-63-72798, JP-A-63-16549).
No. 5). Also, bleaching detergents having improved foaming power by incorporating a hydrotrope have been proposed (JP-A-63-72798, JP-A-63-16549).
No. 5, JP-A-10-204495).

However, when these compositions are sprayed on a vertical surface or an inclined surface from a discharge container equipped with a discharge device such as a trigger type sprayer, the fineness of the foam produced is not sufficient, and Since the bleaching detergent cannot be sprayed uniformly on the contaminated object and must be sprayed repeatedly in the same place, there is an economic problem due to fatigue of the wrist and arm and waste of the detergent. . In addition, when a compound having a hydroxyl group is used as a hydrotrope, there is a problem that the active ingredient is deactivated by gradually reacting with the alkali metal hypochlorite, which is a cleaning base, and as a result, the bleaching power is deteriorated. there were.

Accordingly, an object of the present invention is to provide a bleaching agent capable of forming fine and uniform foam when spraying a bleaching detergent on a vertical surface or an inclined surface, and having high bleaching performance and excellent stability during storage. Agent composition.

[0006]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems, and as a result, have found that a surfactant and an aqueous solution having a terminal blocked by the following general formula (I) or (II) are blocked. When sprayed from a discharge container equipped with a discharge device such as a trigger type sprayer, a uniform foam with fine grain can be formed, and bleaching and washing of the soiled object many times It was found that there was no need to spray the agent and that the composition exhibited excellent bleaching performance and also had excellent content stability during storage, and completed the present invention.

That is, the present invention provides: (1) 0.1 to 10% by weight of an alkali metal hypochlorite (2) 0.1 to 5% by weight of an alkali agent (3) 0.1 to 5% by weight of a surfactant % (4) A bleaching composition characterized by containing 0.1 to 5% by weight of one or more of end-blocking type water-soluble compounds represented by the following general formulas (I) and (II). Offer things.

R ¹ O— (AO) _m — (EO) _n —R ² (I) [wherein, R ¹ represents 1 to 8 carbon atoms which may contain a substituent.
A hydrocarbon group, R ² : an alkyl group or alkenyl group having 1 to 4 carbon atoms, AO: at least one selected from oxyalkylene groups having 3 to 8 carbon atoms, EO: oxyethylene group, m: average of alkylene oxide The number of moles added, 0
≦ m ≦ 10, n: average addition mole number of ethylene oxide, 0 ≦
n ≦ 15, m + n: indicates the number of 1 to 15. ^{] R 3 O - [(AO} ) s, (EO) t] -R 4 (II) [ wherein, R ^3: 1 1 to 8 carbon atoms which may contain a substituent
A hydrocarbon group, R ⁴ : an alkyl group or alkenyl group having 1 to ⁴ carbon atoms, AO: at least one selected from oxyalkylene groups having 3 to 8 carbon atoms, EO: oxyethylene group, s: average of alkylene oxide The number of moles added, 0
≦ s ≦ 10, t: average number of moles of ethylene oxide added, 0 ≦
t ≦ 15, s + t: indicates the number of 1 to 15. ]

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail. As the alkali metal hypochlorite of the component (1) used in the present invention, sodium hypochlorite, potassium hypochlorite and the like can be mentioned, and sodium hypochlorite is particularly preferable. The content of the component (1) in the bleaching composition of the present invention is usually 0.1 to 10% by weight, preferably 1 to 5% by weight.
% By weight. (1) If the content of the component is too small, the bleaching power will be insufficient, and if it is too large, the bleaching power will not be particularly improved.

The alkaline agent of the component (2) used in the present invention is not particularly limited, but examples thereof include caustic alkali and alkali silicate. Sodium hydroxide and potassium hydroxide are used as caustic alkali, and sodium metasilicate and the like are used as alkali silicate. Of these, sodium hydroxide is preferred. The content of the component (2) in the bleaching composition of the present invention is generally in the range of 0.1 to 5% by weight, preferably 0.5 to 3% by weight.
(2) If the content of the component is too small, the stability with the lapse of time is deteriorated.

The surfactant of the component (3) used in the present invention is not particularly limited, and generally used surfactants such as anionic surfactants, nonionic surfactants, amphoteric surfactants and cationic surfactants. An activator may be used, such as an alkane sulfonate, a fatty acid salt, an alkyl sulfate, an alkylbenzene sulfonate,
Alkyl naphthalene sulfonates, alkyl sulfosuccinates, alkyl diphenyl ether disulfonates,
Anionic surfactants such as alkyl phosphates, polyoxyethylene alkyl sulfates, polyoxyethylene alkylaryl sulfates, and polyoxyethylene alkyl phenyl ether sulfonates; polyoxyethylene alkyl ethers, polyoxyethylene alkyl aryls One or more nonionic surfactants such as ethers; amphoteric surfactants such as sulfobetaine, carboxybetaine, and alkyldimethylamine oxide; and one or more cationic surfactants such as alkyltrimethylammonium chloride can be appropriately blended. it can.

Among these surfactants, particularly preferred are (a) an alkali metal salt of a fatty acid having 8 to 20 carbon atoms, and (b) a general formula R ⁵ O (CH ₂ CH ₂ O) _a SO ₃ M. (R ⁵
Represents a linear or branched alkyl group having 8 to 20 carbon atoms, and a represents an average addition mole number of ethylene oxide.
A polyoxyethylene alkyl sulfate salt represented by the general formula R ⁵ O (CH ₂ CH ₂ O) _b H (R ⁵ is a number of carbon atoms) 8-20
Is a straight-chain or branched-chain alkyl group, and b is a number of 3 to 20 indicating an average addition mole number of ethylene oxide.)
A polyoxyethylene alkyl ether represented by
(D) General formula R ⁶ R ⁷ R ⁸ N → O (R ⁶ is a linear or branched alkyl group having 8 to 20 carbon atoms, and R ⁷ and R ⁸ are linear or Which is a branched alkyl group).

The content of the component (3) in the bleaching composition of the present invention is usually 0.1 to 5% by weight, preferably 0.1 to 5% by weight.
It is in the range of 5 to 3% by weight. (3) If the content of the component is too small, bubbles cannot be formed when the content is sprayed from the discharge container, and if it is too large, the decomposition of the alkali metal hypochlorite, which is a bleaching base, is promoted. Absent.

The terminal-blocking type water-soluble compound of the component (4) used in the present invention includes the following general formulas (I) and (I).
This is represented by I). _{^{R 1 O- (AO) m -}} (EO) n -R 2 (I) R 3 O - [(AO) s, (EO) t] -R 4 (II)

In the general formula (I), R ¹ is a monovalent hydrocarbon group having 1 to 8 carbon atoms which may contain a substituent;
Methyl, ethyl, propyl, butyl, pentyl, hexyl and the like; R ² is an alkyl or alkenyl group having 1 to 4 carbon atoms; methyl, ethyl, vinyl, allyl and the like; Oxypropylene, oxybutylene, etc., and m, which is the average number of moles of alkylene oxide added, is a number of 0 ≦ m ≦ 10, preferably 0 ≦ m ≦ 3, EO is an oxyethylene group, and n, which is the average addition mole number of ethylene oxide, is 0 ≦ n ≦
15 numbers, preferably 0 ≦ n ≦ 5, and m + n is 1 to 15
, Preferably 1 to 5.

In the general formula (II), R ³
Is a monovalent hydrocarbon group having 1 to 8 carbon atoms which may contain a substituent, and examples thereof include methyl, ethyl, propyl, butyl, pentyl, and hexyl; and R ⁴ represents an alkyl group or alkenyl having 1 to ⁴ carbon atoms. AO is at least one selected from oxyalkylene groups having 3 to 8 carbon atoms, such as oxypropylene, oxybutylene, and the like. S, which is the number of added moles, is a number satisfying 0 ≦ s ≦ 10;
Preferably, 0 ≦ s ≦ 3, EO is an oxyethylene group, and t is an average addition mole number of ethylene oxide.
Is a number satisfying 0 ≦ t ≦ 15, preferably 0 ≦ t ≦ 5, and s + t
Is a number of 1 to 15, preferably 1 to 5.

Specific examples of the terminal-blocking type water-soluble compounds represented by the general formulas (I) and (II) include ethylene glycol dimethyl ether, diethylene glycol dimethyl ether, triethylene glycol dimethyl ether, diethylene glycol dipropylene glycol dimethyl ether, and triethylene glycol dimethyl ether. Ethylene glycol butylene glycol dimethyl ether, diethylene glycol methyl ethyl ether, triethylene glycol methyl ethyl ether, triethylene glycol dipropylene glycol methyl ethyl ether, tetraethylene glycol butylene glycol methyl ethyl ether, diethylene glycol diethyl ether, triethylene glycol diethyl ether, triethylene glycol Dipropylene glycol di Chirueteru, tetraethylene glycol butylene glycol diethyl ether, diethylene glycol methyl propyl ether, triethylene glycol methyl propyl ether, tetraethylene glycol propylene glycol methyl propyl ether,
Pentaethylene glycol butylene glycol methyl propyl ether, triethylene glycol methyl butyl ether, tetraethylene glycol methyl butyl ether, pentaethylene glycol propylene glycol methyl butyl ether, tetraethylene glycol methyl pentyl ether, pentaethylene glycol propylene glycol methyl pentyl ether, pentaethylene glycol methyl hexyl Ether, hexaethylene glycol propylene glycol methylhexyl ether and the like, and among them, ethylene glycol dimethyl ether, diethylene glycol dimethyl ether, triethylene glycol dimethyl ether,
Examples thereof include diethylene glycol methyl ethyl ether and diethylene glycol diethyl ether.

The terminal-blocking type water-soluble compounds are used alone or in combination of two or more.

The content of the terminal-blocking type water-soluble compound of the component (4) in the bleaching composition of the present invention is usually 0.1.
-5% by weight, preferably 0.5-3% by weight. (4) If the content of the component is too small, it is impossible to form fine and uniform foam, and if it is too large, the decomposition of the alkali metal hypochlorite, which is a bleaching base, is promoted.

The bleaching composition of the present invention can also contain other components such as builders, solvents, dyes, and fragrances. Further, the bleach composition of the present invention is prepared by adding a balanced amount of water to the above essential components and the other optional components.

The bleach composition of the present invention can be used directly from a container or can be applied using a brush or the like. However, it is convenient to use a discharge container provided with a discharge device such as a trigger type sprayer. Preferably, such a discharge container is provided with a discharge device for discharging the bleaching agent composition, and the discharge device is provided with a liquid passing through a sliding portion such as a piston / cylinder or a pump housing. It can be used without any particular limitation as long as it has a fitting portion.

As a specific example, the composition contained in the discharge container 1 as shown in FIG.
By pulling the trigger 3, the piston 4 and the cylinder 5 are actuated to discharge, and the discharge container 1 provided with the trigger type sprayer 6 and the pump head are moved up and down to discharge the composition contained in the container body through the dip tube. A discharge container provided with a pump sprayer or the like as a discharge device is used.

[0023]

According to the present invention, when the contents are sprayed from a discharge container provided with a discharge device such as a trigger type sprayer, very fine grain and uniform foam can be formed. The surface of the soiled object can be uniformly covered at once. Therefore, it is not necessary to spray the bleaching detergent onto the soiled object many times, and it shows excellent bleaching performance and the stability of the contents when stored for a long period of time. Suitable for use on surfaces.

[0024]

The present invention will be described in more detail with reference to examples and comparative examples, but the present invention is not limited to these examples.

Examples and Comparative Examples Various bleaching compositions having the compositions shown in Tables 1 to 3 were prepared, and the foaming properties, bleaching power and stability over time were evaluated based on the following criteria. The obtained results are shown in Tables 1 to 3. In addition, ethylene glycol dimethyl ether as the water-soluble solvent 1, diethylene glycol dimethyl ether as the water-soluble solvent 2, water-soluble solvent 3
As the water-soluble solvent 4, diethylene glycol methyl ethyl ether as the water-soluble solvent 4, and diethylene glycol diethyl ether as the water-soluble solvent 5.

<Method of Measuring Foam Formability> Using a trigger type dispenser (YT87L-FM, manufactured by Yoshino Kogyosho Co., Ltd.) adjusted so that the sample is sprayed in a steady state, at a distance of 2
Spray panel (3
(0 × 30 cm; ABS) was sprayed with two strokes of the various bleaching compositions at the center, and the foam formation at that time was sensory-evaluated by five panelists according to the following evaluation criteria. Evaluation criteria: ：: fine-grained foam uniformly adhered △: coarse-grained foam uniformly adhered ×: coarse-grained foam adhered to spots

<Method of measuring bleaching power> Black mold (Clado)
sporium cladosporioids were cultured and applied to unglazed tiles (INAX; SPK)
C-1060) was used as a model plate (the L value of the model mold plate when the L value of the unglazed tile was calculated as 100) = 30 to 40). The model mold plate was placed vertically, and various bleaching compositions were applied to the center of a 1-stroke (about 0.8 g) plate using a trigger-type dispenser (YT87L-FM, manufactured by Yoshino Kogyo Co., Ltd.).
m. After standing for 5 minutes, washing with water and air drying, the lightness (L value) was measured using a color difference meter (manufactured by MINOLTA; CR-200).

<Evaluation Method of Stability Over Time> 90 g of each bleaching agent composition was filled in a transparent container made of polyethylene terephthalate (manufactured by Takemoto Container; JOY-120), and the lid was covered.
0 ° C thermostat (Tavai Espec; Platinous PU
-4SP) for one month, the concentration of the alkali metal hypochlorite was automatically measured by a fully automatic titrator (Hiranuma Sangyo Co., Ltd .; TS-98).
Using 0), a sample reacted with potassium iodide and acetic acid was titrated with a sodium thiosulfate solution. This concentration was defined as the residual ratio of the alkali metal hypochlorite to the initial concentration, and was determined according to the following evaluation criteria. Evaluation criteria: ○: residual rate of alkali metal hypochlorite 60 to 100% △: residual rate of alkali metal hypochlorite 30 to 60%
(Less than) ×: Residual rate of alkali metal hypochlorite 0 to 30%
(Less than)

[0029]

[Table 1]

[0030]

[Table 2]

[0031]

[Table 3]

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of a main part of a discharge container provided with a discharge device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Discharge container 2 Container main body 3 Trigger 4 Piston 5 Cylinder 6 Sprayer

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Masako Fujitsu, Inventor 1-3-7, Honjo, Sumida-ku, Tokyo Inside Lion Corporation (72) Inventor Hiroshi Yamagishi 1-3-7, Honjo, Sumida-ku, Tokyo F-term in Lion Corporation (reference) 4H003 AB03 AC15 BA12 BA20 BA21 DA06 DA08 DA10 DA13 DA17 DB01 EA21 ED02 ED29 EE08 FA16 FA18 FA21 FA28 FA44

Claims (1)

[Claims] (1) 0.1 to 10% by weight of alkali metal hypochlorite (2) 0.1 to 5% by weight of alkali agent (3) 0.1 to 5% by weight of surfactant (4) A bleaching composition comprising 0.1 to 5% by weight of one or more end-blocking type water-soluble compounds represented by the following general formulas (I) and (II). R ¹ O— (AO) _m — (EO) _n —R ² (I) [wherein, R ¹ represents 1 to 8 carbon atoms which may contain a substituent.
A hydrocarbon group, R ² : an alkyl group or alkenyl group having 1 to 4 carbon atoms, AO: at least one selected from oxyalkylene groups having 3 to 8 carbon atoms, EO: oxyethylene group, m: average of alkylene oxide The number of moles added, 0
≦ m ≦ 10, n: average addition mole number of ethylene oxide, 0 ≦
n ≦ 15, m + n: indicates the number of 1 to 15. ^{] R 3 O - [(AO} ) s, (EO) t] -R 4 (II) [ wherein, R ^3: 1 1 to 8 carbon atoms which may contain a substituent
A hydrocarbon group, R ⁴ : an alkyl group or alkenyl group having 1 to ⁴ carbon atoms, AO: at least one selected from oxyalkylene groups having 3 to 8 carbon atoms, EO: oxyethylene group, s: average of alkylene oxide The number of moles added, 0
≦ s ≦ 10, t: average number of moles of ethylene oxide added, 0 ≦
t ≦ 15, s + t: indicates the number of 1 to 15. ]