JPH11335694A - Liquid bleacher composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prepare the subject composition capable of retaining high performance in bleaching in a long-term storage without impairing merchandise appearance even when blended with an alkanoyloxybenzoic acid a bleaching activator by blending hydrogen peroxide and a surfactant with two kinds of specific bleaching activators. SOLUTION: This composition contains (A) 0.3-30 wt.% hydrogen peroxide, (B) 2-30 wt.% surfactant, (C) 0.01-20 wt.% bleaching activator of formula I (wherein, R<1> is a 5-21C alkyl or an alkenyl; M is H, an alkali metal, or the like), (D) 0.01-20 wt.% bleaching activator of formula II (wherein, R<2> is the same as R<1> ) and (E) water. A poly(oxyethylene alkyl ether)-type nonionic surfactant of the formula: C10 H21 (OC2 H4 )n -OH [wherein, (n) is 4-6; HLB is 5.5-9.4] or the like is pref. as the ingredient B. The content ratio (C/D) of the ingredient C to the ingredient D is pref. 0.3-3. A sequestering agent may be added.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a liquid bleach composition having high bleaching performance and excellent storage stability.

[0002]

BACKGROUND OF THE INVENTION Since liquid oxygen bleaching agents have lower bleaching performance than liquid chlorine bleaching agents, bleaching performance is improved by using a bleaching activator or various surfactants in combination. It is being enhanced. However, when a bleaching activator is used in combination, the bleaching activator precipitates and separates during storage, significantly impairing the appearance of the product, or the bleaching activator gradually decomposes to lower the bleaching performance. There is a problem. In particular, when alkanoyloxybenzoic acid is used as the bleaching activator, the above problem occurs more remarkably.

According to the present invention, even when alkanoyloxybenzoic acid is added as a bleach activator to a liquid oxygen-based bleaching agent, a high bleaching performance is maintained for a long time without impairing the appearance of the product during storage. It is an object to provide a liquid bleach composition that can be used.

[0004]

The present invention provides the following (a):
(D) A liquid bleaching composition containing a component and water. (A) 0.3 to 30% by weight of hydrogen peroxide, (b) 2 to 30% by weight of a surfactant, (c) the following general formula (I):

[0005]

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[Wherein, R ¹ represents a linear or branched alkyl or alkenyl group having 5 to 21 carbon atoms, and M represents a hydrogen atom, an alkali metal atom or an alkaline earth metal atom. (D) the following general formula (II):

[0007]

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[Wherein, R ² represents a linear or branched alkyl or alkenyl group having 5 to 21 carbon atoms, and M represents a hydrogen atom, an alkali metal atom or an alkaline earth metal atom. ]

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The content of hydrogen peroxide as the component (a) used in the present invention in a composition is from 0.3 to 30.
% By weight, preferably 0.5 to 20% by weight,
More preferably, it is 0.5 to 6% by weight. 0.3% by weight
When it is above, sufficient bleaching power can be provided, and 30
When the content is less than% by weight, the production cost can be reduced while maintaining excellent bleaching power.

The surfactant of the component (b) used in the present invention includes one or more selected from anionic surfactants, nonionic surfactants, amphoteric surfactants and cationic surfactants. it can.

Examples of the anionic surfactant include alkyl benzene sulfonate, alkyl or alkenyl ether sulfate, alkyl or alkenyl sulfate, olefin sulfonate, alkane sulfonate, saturated or unsaturated fatty acid salt, alkyl or alkenyl ether. Carboxylic acid salts, α-sulfo fatty acid salts, α-sulfo fatty acid esters and the like can be mentioned; as nonionic surfactants, polyoxyalkylene alkyl or alkenyl ether, polyoxyalkylene alkyl phenyl ether, higher fatty acid alkanolamides Or an alkylene oxide adduct thereof, a sucrose fatty acid ester, an alkyl glycoside, etc .; examples of the cationic surfactant include quaternary ammonium salts; and examples of the amphoteric surfactant include a Minoxide, sulfobetaine, carbobetaine and the like can be mentioned.

As the component (b), alkyl (C10
20) Benzene sulfonate, alkyl (C10-2)
0) or alkenyl (C10-20) sulfate, alkyl (C10-20) or alkenyl (C10-20) ether sulfate, polyoxyalkylene alkyl or alkenyl ether (ethylene oxide addition moles 4 to 15,
Preferred are alkyl or alkenyl groups having 10 to 20 carbon atoms), quaternary ammonium salts having at least one alkyl group having 10 to 20 carbon atoms, amine oxides, carbobetaines and the like.

As the component (b), a polyoxyalkylene alkyl or alkenyl ether is used in a surfactant.
0 wt% or more, and preferably occupy preferably 90 wt% or more, the following formula ^{(III): R 3 -O- (} A) n - (B) m -OH (III) [ wherein, R ³ is the number of carbon atoms A represents a linear or branched alkyl or alkenyl group having 5 to 21; A represents a polyoxyethylene chain; B represents an oxyalkylene group having 3 to 5 carbon atoms which may be branched; May be a block bond or a random bond; m and n each represent a number of 0 to 50, and m + n represents a number of 3 to 50. ] Is preferable.

Further, as the component (b), a compound represented by the general formula (II)
HL obtained by Davis' method among those expressed in I)
A polyoxyethylene alkyl ether type nonionic surfactant represented by the following general formula (IV), wherein B is 4.5 to 12, preferably 4.5 to 8, is more preferred. R ⁴ — (OC ₂ H ₄ ) _n —OH (IV) wherein R ⁴ is an alkyl group or an alkenyl group having 8 to 18 carbon atoms or an aryl optionally substituted with an alkyl group having 1 to 12 carbon atoms. It indicates radical, n is a number having an HLB calculated in Davis manner in relation to R ⁴ is selected to be from 4.5 to 12.

As the nonionic surfactant represented by the general formula (IV), the following compounds can be exemplified. _{C 10 H 21 (OC 2 H} 4) n -OH n = 4~16, HLB = 5.5~9.4 C 12 H 25 (OC 2 H 4) n -OH n = 4~18, HLB = 4.5~9.1 C 14 _{H 29 (OC 2 H 4)} n -OH n = 8~20, HLB = 4.9~8.9 C 16 H 33 (OC 2 H 4) n -OH n = 10~25, HLB = 4.6~9.6 C 18 H 37 _{(OC 2 H 4) n -OH} n = 14~30, HLB = 5.0~10.3 original nonionic surfactants among these are most preferred.

The content of the component (b) in the composition is as follows:
The content is 2 to 30% by weight, preferably 2 to 20% by weight, particularly preferably 3 to 20% by weight. Within this range, storage stability and detergency are excellent.

The bleach activator of the component (c) used in the present invention is represented by the general formula (I), and specific examples thereof include the following compounds.

[0018]

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The content of the component (c) in the composition is as follows:
In order to give sufficient bleaching power and not to cause precipitation,
It is 0.01 to 20% by weight, preferably 0.05 to 10% by weight, particularly preferably 0.05 to 5% by weight.

The bleach activator of the component (d) used in the present invention is represented by the general formula (II), and specific examples include the following compounds.

[0021]

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The content of the component (d) in the composition is as follows:
It is 0.01 to 20% by weight, preferably 0.05 to 10% by weight, particularly preferably 0.05 to 5% by weight. 0.0
When the content is 1% by weight or more, sufficient bleaching power can be imparted, and when the content is 20% by weight or less, precipitation can be prevented during use.

In the liquid bleach composition of the present invention,
The content ratio (weight ratio) of the component (c) to the component (d) is preferably (c) / (d) = 0.1 to 10, and particularly preferably 0.3 to 3.

The liquid bleach composition of the present invention may further contain a sequestering agent. Examples of the sequestering agent include those described in JP-A-9-188896, column 14, line 44 to column 15, line 36, and examples thereof include the following. (1) ethane-1,1-diphosphonic acid, ethane-1,1,2-triphosphonic acid, ethane-1-hydroxy-1,1-diphosphonic acid and derivatives thereof, ethanehydroxy-1,1,2-triphosphonic acid Phosphonic acids such as ethane-1,2-dicarboxy-1,2-diphosphonic acid and methanehydroxyphosphonic acid, or alkali metal salts or alkanolamine salts thereof; (2) nitrilotriacetic acid, iminodiacetic acid, ethylenediaminetetraacetic acid Aminopolyacetic acids such as diethylenetriaminepentaacetic acid, glycoletherdiaminetetraacetic acid, hydroxyethyliminodiacetic acid, triethylenetetraminehexaacetic acid, and diencoric acid, or alkali metal salts or alkanolamine salts thereof; (3) diglycolic acid, oxydisuccinic acid, Carboxymethyloxysuccinic acid, citric acid, lactic acid, tartaric acid, oxalic acid, malic acid, glue Phosphate, carboxymethyl succinic acid, carboxymethyl organic acids or their alkali metal salts or alkanolamine salts such as tartaric acid; the sequestering agent, 1 selected from the group consisting of (1)
More than one species are preferred.

The amount of the sequestering agent is preferably 0.0005 to 5% by weight, particularly preferably 0.05 to 5% by weight.
1 to 1% by weight.

The liquid bleach composition of the present invention may further contain a builder. Examples of the builder include water-soluble inorganic builders such as sulfate, carbonate, bicarbonate, silicate and phosphate. The amount of the builder is preferably 0.1 to 40% by weight.

[0027] The liquid bleach composition of the present invention may further contain a hydrogen peroxide stabilizer. Examples of the stabilizer include magnesium salts such as magnesium sulfate, magnesium silicate, magnesium chloride, magnesium oxide and magnesium hydroxide, silicates such as sodium silicate, phosphoric acid, barbituric acid, uric acid, acetanilide, oxyquinoline. And phenacetin, aminopolycarboxylic acids, DL-α-tocopherol, gallic acid derivatives, butylated hydroxyanisole (BH
A) and 2,6-di-tert-butyl-4-methylphenol (BHT). The compounding amount of the stabilizer is preferably from 0 to 5% by weight, particularly preferably from 0.01 to 3% by weight.

The liquid bleaching composition of the present invention may further contain a redeposition inhibitor. Examples of the anti-redeposition agent include carboxymethyl cellulose, polyacrylate, polyvinylpyrrolidone, polyethylene glycol and the like. The compounding amount of the anti-redeposition agent is preferably 0.1 to 5.0% by weight.

The liquid bleach composition of the present invention may further contain a hydrotrope for the purpose of stabilizing the composition at low temperatures and improving the freeze-recoverability and preventing liquid separation at high temperatures. As the hydrotrope, monopropylene glycol monobutyl ether, monopropylene glycol monopropyl ether, monopropylene glycol monoethyl ether, polyoxyethylene (n = 1 to 5) phenyl ether or benzyl ether is preferable, and the compounding amount is 0.1 to 0.1. It is 30% by weight, preferably 0.5 to 10% by weight.

The liquid bleach composition of the present invention further comprises a discoloration inhibitor, a fluorescent whitening agent, a thickener, a coloring agent such as a dye or a pigment, a fragrance, a bactericide, an ultraviolet absorber, an inorganic electrolyte ( Sodium chloride, sodium sulfate, calcium chloride, etc.),
An enzyme such as cellulase, amylase, protease and lipase which is not affected by the bleaching agent can be selected and blended.

The liquid bleach composition of the present invention contains water in addition to the above components. The water content is a balance amount with the total content of the components being 100% by weight.

The liquid bleach composition of the present invention is preferably added with an organic acid, an inorganic acid, or the like, in order to enhance the storage stability.
The H is adjusted to 6 or less, and particularly preferably the pH is adjusted to 3.5 or less.

The liquid bleach composition of the present invention is used by directly applying it to clothing or dipping clothing. In addition, it can be used in the same bath with a commercially available detergent.

[0034]

EXAMPLES Examples 1 to 3 and Comparative Examples 1 to 4 Hydrogen peroxide as the component (a), the following components (b-1) to (b-3) as the component (b), and the following components as the component (c): (C
-1) to (c-3), and the following (d-
1) to (d-3), the following (e) as a sequestering agent
-1) Using water and the composition shown in Table 1 (% by weight)
A liquid bleach composition was obtained. In addition, these compositions are:
The pH was adjusted to 2.5 with 0.1N sulfuric acid or 0.1N sodium hydroxide. _{(B-1): C 10} H 21 (OC 2 H 4) 8 -OH (HLB = 6.79) (b-2): C 12 H 25 (OC 2 H 4) 6 -OH (HLB = 5.18) (b _{-3): C 12 H 25 (} OC 2 H 4) 9 - (0C 3 H 6) 3 -OH

[0035]

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(E-1): 1-hydroxyethylidene-
1,1-Diphosphonic acid (manufactured by Monsanto Japan Co., Ltd., trade name: Dequest 2010) Using the compositions shown in Table 1, storage stability and bleaching performance were tested by the following methods. Table 1 shows the results.

(Storage stability) Storage stability of bleach activator 80 g of each composition was placed in a 100 ml glass sample bottle and stored at a temperature of 40 ° C for one month. The content of the bleach activator in the composition before and after storage was determined by high performance liquid chromatography, and the residual ratio of the bleach activator was determined from the following formula.

[0038]

(Equation 1)

Storage Stability of Appearance When 80 g of each composition was put in a 100 ml glass sample bottle and stored at a temperature of 5 ° C. or 40 ° C. for one month, the appearance was visually observed and evaluated according to the following criteria. 1: Uniform and transparent 2: Slightly cloudy 3: Cloudy 4: Some precipitation is observed 5: Precipitation is considerably observed.

(Bleaching Performance) Preparation of Curry-Contaminated Cloth After the solid content of house food retort curry (curry Marche) was removed with a net, the resulting liquid component was heated to boiling. Dip cotton cloth # 2003 in this solution,
Boil for a minute. Next, after being removed from the heat and left for 2 hours, the cotton / gold cloth # 2003 was taken out, and the excessively attached curry was removed with a spatula and air-dried. After that, it was pressed and cut into 10 × 10 cm to obtain a curry-contaminated cloth.

Measurement of Bleaching Performance A curry-stained cloth (new oily stain) was added to 40 liters of a composition added to 2 L of tap water containing a commercially available detergent (0.0833% by weight, pH = 10.2). Each sheet was immersed for 30 minutes. Then, it was taken out, rinsed with tap water, dried, and the bleaching rate was obtained from the following formula, and the bleaching performance was evaluated. The reflectivity is NDR-101DP manufactured by Nippon Denshoku Industries Co., Ltd.
Was measured using a 460 nm filter. The display is an average value of four sheets.

[0042]

(Equation 2)

[0043]

[Table 1]

[0044]

As described above, the liquid bleaching composition of the present invention has high storage stability against temperature changes, and therefore can maintain the bleaching performance and appearance stably for a long period of time. This facilitates product management in the distribution and sales processes, and can further improve convenience for consumers.

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Muneo Aoyagi 1334 Minato, Wakayama City, Wakayama Pref.

Claims (3)

[Claims] 1. A liquid bleaching composition containing the following components (a) to (d) and water. (A) 0.3 to 30% by weight of hydrogen peroxide; (b) 2 to 30% by weight of a surfactant; (c) the following general formula (I): [Wherein, R ¹ represents a linear or branched alkyl or alkenyl group having 5 to 21 carbon atoms, and M represents a hydrogen atom, an alkali metal atom or an alkaline earth metal atom. (D) a bleach activator represented by the following general formula (II): [Wherein, R ² represents a linear or branched alkyl or alkenyl group having 5 to 21 carbon atoms, and M represents a hydrogen atom, an alkali metal atom or an alkaline earth metal atom. 0.01 to 20% by weight of a bleaching activator represented by the formula: 2. The liquid bleach composition according to claim 1, wherein the content ratio (weight ratio) of component (c) to component (d) is (c) / (d) = 0.1 to 10. The component (b) is represented by the following general formula (III): R ³ —O— (A) _n — (B) _m —OH (III) wherein R ³ is a straight chain having 5 to 21 carbon atoms. A represents a polyoxyethylene chain, B represents an oxyalkylene group having 3 to 5 carbon atoms which may be branched, and A and B represent a random bond or a block bond. M and n each represent a number of 0 to 50, and m + n represents a number of 3 to 50. The liquid bleach composition according to claim 1 or 2, which is a nonionic surfactant represented by the formula: