JPH11148094A - Liquid bleach composition - Google Patents

Abstract

(57) [Problem] To provide a hypochlorite-containing liquid bleaching composition which has reduced storage stability, especially gas generation. In a liquid bleach composition containing a hypohalite, (A) 1 to 10% by weight of alkali metal hypohalite (B) 0.1 to 5% by weight of alkali metal hydroxide (C) One or more selected from surfactants represented by the following general formula (I): 0.01 to 10% by weight (D) One or two selected from nitrogen-containing compounds represented by the following general formula (II) R ¹ R ² R ³ N → O (I) (wherein, R ¹ represents a linear or branched alkyl or alkenyl group having 8 to 20 carbon atoms. R ² , R ³ Which represents an alkyl group or a hydroxyalkyl group having 1 to 3 carbon atoms.) R ⁴ R ⁵ R ⁶ N (II) (wherein, R ⁴ represents a linear or branched chain having 8 to 20 carbon atoms) . an alkyl or alkenyl group ^R 5, ^{R 6;} hydrogen, or Inhibits gas generation during storage by the inclusion of showing.) An alkyl or hydroxyalkyl group having 1 to 3 carbon atoms.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a chlorine-based liquid bleaching composition containing an alkali metal hypohalite suitable for home use.

[0002]

2. Description of the Related Art Conventionally, hypochlorite has been widely used for the purpose of bleaching, sterilization, etc., and 1% to 7% even in home use.
As an alkaline solution diluted to a certain extent, it is blended in bleaching agents, toilet cleaners, mold removers, and the like. When used in these applications, surfactants are added for the purpose of imparting permeability and detergency or stably compounding hydrophobic raw materials such as fragrances. When used in combination with an acid salt, the surfactant and the hypochlorite are decomposed during long-term storage, which causes problems such as a decrease in bleaching power and gas generation. In order to solve these problems, Japanese Patent Laid-Open Publication No.
903 and JP-A-59-93799, polyoxyethylene alkylphenol ether sulfate, polyoxyethylene alkylphenol ether sulfate sulfonate, and amine oxide are used as surfactants which are stable even when used in combination with hypochlorite. Liquid detergents are disclosed. Japanese Patent Application Laid-Open No. 8-296169 discloses a hypochlorite-containing liquid bleaching composition comprising a combination of a specific alkylene oxide addition type surfactant and dioxane. These compositions were found to improve the stability of hypochlorite and have an effect on bleaching power and detergency, but they were not sufficient in terms of suppressing gas generation which causes problems such as bulging of containers. Therefore, a device such as a container using a material having gas permeability or a container that mechanically transmits gas has been required.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a hypochlorite-containing liquid bleaching composition which has reduced storage stability, in particular, gas generation.

[0004]

Means for Solving the Problems As a result of investigations for solving the above problems, the present inventors have found that hypochlorite, alkali metal hydroxide, a specific surfactant represented by the formula (I), (I
I) It has been found that by containing a specific nitrogen-containing compound represented by the formula, gas generation during storage can be suppressed, and the present invention has been completed. That is, the present invention provides (A) an alkali metal hypohalite salt of 1 to 10% by weight, (B) an alkali metal hydroxide of 0.1 to 5% by weight, and (C) a surfactant represented by the following general formula (I). One or more selected from the group consisting of 0.01 to 10% by weight (D) One or more selected from nitrogen-containing compounds represented by the following general formula (II)

[0005]

Embedded image R ¹ R ² R ³ N → O (I) (wherein, R ¹ represents a linear or branched alkyl or alkenyl group having 8 to 20 carbon atoms. R ² , R ³ ; carbon And represents an alkyl group or a hydroxyalkyl group of Formulas 1 to 3.)

[0006]

Embedded image R ⁴ R ⁵ R ⁶ N (II) (wherein, R ⁴ represents a linear or branched alkyl or alkenyl group having 8 to 20 carbon atoms. R ⁵ , R ⁶ ; hydrogen, or A liquid bleaching composition comprising an alkyl group or a hydroxyalkyl group having 1 to 3 carbon atoms).

Hereinafter, the present invention will be described in detail. The component (A) used in the present invention is an alkali metal hypohalite, and hypochlorite is preferably used. Specific examples include sodium hypochlorite, potassium hypochlorite, lithium hypochlorite and the like, with sodium hypochlorite being particularly preferred. (A) Component is 1-10 in a composition.
%, Preferably 2 to 8%.

The component (B) used in the present invention is an alkali metal hydroxide, such as sodium hydroxide, potassium hydroxide and lithium hydroxide. Among these, sodium hydroxide is preferably used. (B) component is mix | blended in the range of 0.1-5% in a composition.

The component (C) used in the present invention is a specific surfactant represented by the following formula (I).

[0010]

Embedded image R ¹ R ² R ³ N → O (I) In the formula, R ¹ represents a linear or branched alkyl or alkenyl group having 8 to 20 carbon atoms, and is preferably based on the total amount of the C component. , R ¹ having a carbon number of 12 to 14 has a content of 50% or more. R ² and R ³ represent an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group, and preferably contain at least one methyl group. Specific examples include lauryl dimethylamine oxide, myristyl dimethylamine oxide, coconut dimethylamine oxide, and hardened tallow dimethylamine oxide. Component (C) is incorporated in the composition in an amount of 0.01 to 10%, preferably 0.05 to 5%.

The component (D) used in the present invention is a nitrogen-containing compound represented by the following formula (II).

[0012]

Embedded image R ⁴ R ⁵ R ⁶ N (II) In the formula, R ⁴ represents a linear or branched alkyl or alkenyl group having 8 to 20 carbon atoms, preferably 1 carbon atom.
2 to 14 are contained in 50% or more. R ⁵ and R ⁶ represent hydrogen, an alkyl group having 1 to 3 carbon atoms, or a hydroxyalkyl group, and preferably contain at least one methyl group. Specific examples include octyldimethylamine, decyldimethylamine, lauryldimethylamine, myristyldimethylamine, cocodimethylamine, laurylamine, cocoamine, cocomethylethylamine, cocodiethylamine, and the like. It is preferable that the component (D) is added in an amount of 0.01 to 10%, particularly 0.05 to 3%, based on the total amount of the surfactant of the component (C). When the amount of the component (D) is within this range, the gas generation suppressing effect is particularly excellent.

In the present invention, a specific amount of the above-mentioned components (A) to (C) is blended, and further, the component (D) is used in combination to obtain a liquid bleaching composition in which gas generation is suppressed.
In the liquid bleach composition containing hypohalite of the present invention,
In addition to the above components, the following components can be contained.

(E) One or more compounds selected from benzoic acid or a salt thereof, halogenated benzoic acid or a salt thereof, salicylic acid or a derivative thereof. By blending these, the stability of the fragrance is improved. The compounding amount is 0.
The range of 01% to 1% is preferred.

(F) Fragrance. The perfume composition to be blended is arbitrarily prepared by a perfumer depending on the type of aroma of the product,
Particularly citronellol, hydroxycitronellol, mugol, myrcenol, terpinolene, ethyl-2-methylbutyrate, phenylpropyl alcohol, galact solid, tonalid, rose oxide, rilonal oxide, 2,6-dimethyl-3-octanol, tetrahydroethyllinalyl acetate Ortho-secondary butylcyclohexyl acetate, isorondiphorene epoxide and the like are fragrance components preferably used in the hypohalite-containing composition. The fragrance composition can be blended in the liquid bleach in the range of 0.001 to 1%.

The liquid bleaching composition containing liquid hypohalite of the present invention may further contain various coloring agents,
An inorganic electrolyte such as sodium chloride and potassium chloride, and a thickener such as xanthan gum when the main purpose is coating can be blended within a range that does not impair the effects of the present invention.

The liquid bleaching composition of the present invention is preferably adjusted to a pH of from 10 to 13, and generally has a viscosity of from 1 to 2.
Adjust to 00. Further, the composition can be contained in a container usually used for a liquid bleach, but a container having a function of preventing liquid dripping and liquid return is particularly preferable.

[0018]

According to the present invention, it is possible to provide a hypochlorite-based liquid bleaching composition having excellent storage stability and, in particular, significantly suppressing gas generation as compared with the prior art.

[0019]

EXAMPLES The present invention will be described below with reference to examples, but the present invention is not limited to these examples. Example The liquid bleach compositions shown in Table 1 were prepared, and the amount of gas generated was examined. (Method of Measuring Gas Generation) A glass tube was attached to an Erlenmeyer flask containing 500 ml of the bleaching agent composition, and after storing at 40 ° C. for 2 weeks, the volume of generated gas was measured.

[0020]

[Table 1]

In Examples 1 to 5, the amount of gas generated after storage was significantly suppressed, and the effect of the present invention can be confirmed. Also,
Examples 1 and 5 containing the E component had particularly excellent aroma stability after storage.

Claims (1)

[Claims] (1) (A) an alkali metal hypohalite salt
10% by weight (B) 0.1 to 5% by weight of an alkali metal hydroxide (C) One or more kinds selected from surfactants represented by the following general formula (I) 0.01 to 10% by weight ( D) A liquid bleach composition comprising one or more selected from nitrogen-containing compounds represented by the following general formula (II). Embedded image R ¹ R ² R ³ N → O (I) (wherein, R ¹ represents a linear or branched alkyl or alkenyl group having 8 to 20 carbon atoms. R ² , R ³ ; carbon R ⁴ R ⁵ R ⁶ N (II) (wherein R ^{4 is} a linear or branched alkyl group having 8 to 20 carbon atoms) R ⁵ , R ⁶ ; hydrogen or an alkyl group having 1 to 3 carbon atoms,
Shows a hydroxyalkyl group. )