JP2011122071A - Liquid bleach composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid bleach composition which is excellent in stability for preservation of hydrogen peroxide and in bleaching power even at a pH set at a high value, has an extremely low variation in smell of the composition after the preservation, and is excellent in effect of granting flavor to a fiber product, in the liquid bleach composition, to which a pH jump technology is applied. <P>SOLUTION: The liquid bleach composition contains: (a) hydrogen peroxide; (b) a polyoxyalkylene alkyl ether type nonionic surfactant, of which HLB determined by a griffin method is 10.5 to 17.5; (c) a specific silicate ester compound; (d) at least one compound selected from boric acid, borax, and borate; (e) a compound in which there are one or more sites having one hydroxyl group each on both carbon atoms adjacent to each other; and (f) an anionic surfactant, in which a pH at 20°C is 3.5 to 6. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a liquid bleach composition, and more particularly to a liquid bleach composition suitable for use in textile products such as clothing.

  The liquid bleach composition containing a bleach base such as hydrogen peroxide needs to have an acidic pH (for example, pH 1.5 to 6) during storage of the composition from the viewpoint of the stability of the bleach base. is there. Patent Document 1 discloses a technique (pH jump technique) for increasing pH by diluting a composition containing a boron compound and a saccharide in water at the time of use in the field of a bleaching composition containing a bleaching base and a cleaning composition. -3. When this technology is used, the pH rises when diluted with water, and high performance is exhibited when a bleaching base such as hydrogen peroxide is activated, but as an achievement means for effectively raising the pH It is necessary to adjust the pH of the composition before dilution with water (during storage) to be weakly acidic (for example, pH 3.5 to 6).

  On the other hand, in the liquid bleach composition, a fragrance can be blended from the viewpoint of leaving a good scent in clothing. However, the higher the pH, the more easily the bleaching base material reacts with the fragrance component, and the scent deteriorates, which is good for clothing. It becomes difficult to leave a scent.

  On the other hand, Patent Document 3 discloses a functional substance release agent containing a silicate ester that can release a constant functional substance gradually.

Japanese Patent Laid-Open No. 10-72595 Japanese Patent Laid-Open No. 10-72596 JP 2000-144187 A JP 2009-197055 A

  In a liquid bleach composition containing a bleaching base such as hydrogen peroxide, in order to achieve both improvement of the bleaching effect by hydrogen peroxide and leaving a good scent on clothing, Therefore, a technique for stably blending the fragrance component is required.

  Therefore, the problem to be solved by the present invention is that in a liquid bleaching composition to which the pH jump technique is applied, even if the pH is set high, the storage stability and bleaching power of hydrogen peroxide are excellent, and the composition after storage An object of the present invention is to provide a liquid bleaching composition that has very little change in the odor of a product and is excellent in the effect of imparting a scent to a textile product.

This invention contains the following (a) component, (b) component, (c) component, (d) component, (e) component, and (f) component, and pH at 20 degreeC is 3.5-6. It relates to a liquid bleach composition.
Component (a): Hydrogen peroxide (b) Component: Polyoxyalkylene alkyl ether type nonionic surfactant (c) having an HLB of 10.5 to 17.5 determined by the Griffin method Component: General formula (1) Compound represented by

[Wherein, X is —OH, —R ¹ (R ¹ is an aliphatic hydrocarbon group having 1 to 22 carbon atoms optionally having a phenyl group, a hydroxyl group or an alkoxy group) or —OR ^2. (R ² is a residue obtained by removing one hydroxyl group from perfume alcohol, preferably the residue is a hydrocarbon group having 5 to 22 carbon atoms), Y is X or —OSi (X) ₃ , and n is an average value It is the number of 0-15 which shows. A plurality of X and Y may be the same or different, but have at least one —OR ^{2 in} one molecule. ]
(D) component: at least one compound selected from boric acid, borax and borate (e) component: a compound in which one or more sites each having one hydroxyl group are present on both adjacent carbon atoms ( f) Anionic surfactant

  According to the present invention, in a liquid bleaching composition to which pH jump technology is applied, even if the pH is set high, the storage stability and bleaching power of hydrogen peroxide are excellent, and the odor of the composition after storage is changed. There is provided a liquid bleach composition which is extremely small and has an excellent fragrance imparting effect on textile products.

[(A) component]
The liquid bleach composition of the present invention contains hydrogen peroxide as the component (a). The content of the component (a) is preferably 0.1 to 30% by mass, more preferably 0.5 to 20% by mass, still more preferably 1 to 15% by mass, and further preferably 1 in the liquid bleach composition. .5 to 10% by mass, particularly preferably 1.8 to 5% by mass. In such a range, an excellent bleaching effect and good stability can be obtained.

[Component (b)]
In the liquid bleach composition of the present invention, the HLB obtained by the Griffin method as the component (b) (hereinafter, unless otherwise specified, the HLB is by the Griffin method) is 10.5 to 17.5, preferably 11.5. A polyoxyalkylene alkyl ether type nonionic surfactant which is ˜16, more preferably 12.5˜15. (B) Although it does not specifically limit as a component, For example, the nonionic surfactant represented by General formula (2) is mentioned.
R ³ —O [(EO) _a / (PO) _b ] —H (2)
[Wherein R ³ represents a hydrocarbon group, preferably an alkyl group or an alkenyl group having 10 to 18 carbon atoms, preferably 12 to 14 carbon atoms. EO is an ethyleneoxy group and PO is a propyleneoxy group. a is an average addition mole number of EO and is a number of 0 to 40, b is an average addition mole number of PO and is a number of 0 to 20, and a case where both a and b are 0 is excluded. Preferably a is a number of 5 to 30, more preferably 5 to 25, preferably b is a number of 0 to 10, more preferably 0 to 8, particularly preferably 0 to 6. “/” Indicates that EO and PO may be combined with random or block. ]

  In the general formula (2), EO and PO may be arranged in any form of a random copolymer or a block copolymer.

  Since the component (b) has a property of efficiently incorporating the component (c) described later into the micelle, the component (b) is also used in a system in which the component (c) coexists with highly reactive hydrogen peroxide. Stability can be maintained by blending. Here, when HLB is too high, it becomes difficult for a fragrance | flavor to be taken in in a micelle and the adsorptivity to the clothing of a fragrance | flavor improves, but there exists a possibility that the stability of (c) component in a product may fall. . On the other hand, if the HLB is too low, the component (c) is more easily taken up into the micelle, so that the stability of the component (c) is improved. There is a concern that there is a risk of reduction.

  Therefore, the above HLB is 10.5 to 17.5, preferably 11 from the viewpoint of improving the stability of the component (c) in the product and improving the adsorptivity of the component (c) to the clothing in use. .5 to 16, more preferably 12.5 to 15.

  In the liquid bleach composition of the present invention, the component (b) is preferably 3 to 50% by mass, more preferably 4 to 40% by mass, from the viewpoint of improving the storage stability of the component (c) and the bleaching property. More preferably, it contains 5 to 30% by mass, and particularly preferably 10 to 25% by mass.

[Component (c)]
The component (c) of the present invention is a compound represented by the above general formula (1). As the component (c), one or more compounds can be used.

In the general formula (1), X is —OH, —R ¹ or —OR ² , Y is X or —OSi (X) ₃ , n is a number of 0 to 15 indicating an average value, and a plurality of X and Y may be the same or different, but has at least one —OR ^{2 in} one molecule.

R ¹ represents an aliphatic hydrocarbon group having 1 to 22 carbon atoms which may have a phenyl group, a hydroxyl group or an alkoxy group as a substituent, and in particular, a linear or branched alkyl group or alkenyl group and aryl An alkyl group is preferable, and when n is 0, a linear or branched alkyl group having 6 to 18 carbon atoms and an alkyl having 1 to 5 carbon atoms (total carbon number 6 to 10) having a phenyl group as a substituent. More preferably, a linear alkyl group having 6 to 18 carbon atoms such as an n-hexyl group, an n-octyl group, an n-decyl group, an n-dodecyl group, an n-hexadecyl group, an n-octadecyl group, or a phenyl group. The alkyl group having 1 to 3 carbon atoms is more preferable, the linear alkyl group having 7 to 16 carbon atoms or the phenylethyl group is further preferable, and the linear alkyl group having 7 to 12 carbon atoms is still more preferable. Moreover, when n is more than 0 to 15, and further 1 to 15, R ¹ is preferably a group selected from an alkyl group having 1 to 5 carbon atoms such as a methyl group and a benzyl group, and more preferably a methyl group.

R ² represents a residue obtained by removing one hydroxyl group from a perfume alcohol, preferably such a residue, and having 5 to 22 carbon atoms, more preferably 6 to 18 carbon atoms, and more preferably 7 to 15 carbon atoms. A hydrogen group is mentioned. The hydrocarbon group is preferably a group selected from an alkyl group, an alkenyl group, an alkylaryl group and an arylalkyl group, and a group selected from an alkyl group, an alkenyl group and an arylalkyl group is preferred.

  Here, as the fragrance alcohol, for example, alcohol described in “Synthetic fragrance—Chemistry and Product Knowledge” (Chemical Industry Daily Co., Ltd., issued in March 2005), specifically, green leaf alcohol (cis-3) -Hexenol), 3-octenol (1-octen-3-ol), 9-decenol, geraniol, nerol, citronellol, rosinol, farnesol, hydroxycitronellol, 3,7-dimethyl-7-methoxyoctane-2-ol, 3 -Methyl-5- (2,2,3-trimethyl-3-cyclopenten-1-yl) -2-pentanol, 2-ethyl-4- (2,2,3-trimethyl-3-cyclopenten-1-yl ) -2-butenol, 2-methyl-4- (2,2,3-trimethyl-3-cyclopenten-1-yl) -2-buteno 2-methyl-4- (2,2,3-trimethyl-3-cyclopenten-1-yl) -1-butanol, 3-methyl-5- (2,2,3-trimethyl-3-cyclopentene-1 -Yl) -4-penten-2-ol, 3,3-dimethyl-5- (2,2,3-trimethyl-3-cyclopenten-1-yl) -4-penten-2-ol, etc. Saturated linear or branched alcohols: benzyl alcohol, 2-phenylethanol (β-phenylethyl alcohol), cinnamic alcohol, γ-phenylpropyl alcohol, anise alcohol, phenoxyethyl alcohol, styryl alcohol, 3-methyl-5 -Aromatic alcohols such as phenylpentanol, 2,2-dimethyl-3- (3-methylphenyl) -propanol; -Dimethyl-3-cyclohexene-1-methanol, 4-isopropylcyclohexylmethanol, 1- (4-isopropylcyclohexyl) ethanol, p-tert-butylcyclohexanol, o-tert-butylcyclohexanol, L-menthol, 1- ( Saturated or unsaturated cyclic alcohols such as 2-tert-butylcyclohexyloxy) -2-butanol, pentamethylcyclohexylpropanol, 1- (2,2,6-trimethylcyclohexyl) -3-hexanol, santalol, vetiverol, etc. Is mentioned.

In the general formula (1), when n is 0, a compound in which 2 to 4 of 4 X, further 3 or 4 is —OR ² , and the remainder is —R ¹ is suitable. .

  Preferred compounds when n is 0 include compounds represented by the following formula (1-1) or (1-2).

[Wherein, R ¹ and R ² have the same meaning as described above. ]
In the general formula (1), when n is 1 to 15, n represents an average value, and for all X and Y, 1/10 or more, preferably 1/8 or more is -OR ² . A compound in which the remainder is —R ¹ is preferred, and a compound in which all X and Y are —OR ² is particularly preferred. As n, 1-10 are preferable and 1-5 are more preferable.

  Preferred compounds when n is 1 to 15 include compounds represented by the following formula (1-3) or (1-4).

[Wherein, R ¹ and R ² have the same meaning as described above. n ′ represents a number from 1 to 15, and T represents —OR ² or —R ¹ . ]

  The compound represented by the general formula (1) can be obtained by a method described in JP-A No. 54-59498.

  In the liquid bleach composition of the present invention, the component (c) is preferably 0.01 to 10% by mass, more preferably 0.1 to 5% by mass, and still more preferably 0.2, from the viewpoint of product stability. -3 mass%, particularly preferably 0.4-2 mass%.

[Component (d)]
The liquid bleach composition of the present invention contains at least one compound selected from boric acid, borax and borate as the component (d). Examples of borates include sodium borate, potassium borate, ammonium borate, sodium tetraborate, potassium potassium borate, and ammonium ammonium borate.

  The content of the component (d) in the composition of the present invention is preferably 0.05 to 1% by mass, more preferably 0.15 to 0.5% by mass, and further preferably 0.2 to 0.5% as a boron atom. 0.4% by mass.

[(E) component]
The liquid bleach composition of the present invention contains, as component (e), a compound having one or more sites each having one hydroxyl group on both adjacent carbon atoms.

  Specific examples of the component (e) include the following compounds (i) to (iv), and at least one selected from the group consisting of these compounds can be used.

(I) Glycerin, diglycerin, triglycerin, alkyl (C1-C10) polyglyceryl ether (for example, alkyl (C1-C10) diglyceryl ether, alkyl (C1-C10) triglyceryl ether)
(Ii) sugar alcohols selected from sorbitol, mannitol, maltose, inositol, and phytic acid (iii) selected from glucose, apiose, arabinose, galactose, lyxose, mannose, galose, aldose, idose, talose, xylose, and fructose Reducing sugars and their derivatives (alkyl (poly) glycosides, etc.)
(Iv) A polysaccharide selected from starch, dextran, xanthan gum, guar gum, curdlan, pullulan, amylose, and cellulose.

  In the present invention, the sugar alcohols (ii) above are particularly suitable and can be used alone or in combination. In particular, sorbitol is preferable from the viewpoints of stability and bleaching / washing effect.

  Content of (e) component in the composition of this invention becomes like this. Preferably it is 3-35 mass%, More preferably, it is 5-30 mass%, More preferably, it is 10-20 mass%.

[Component (f)]
The liquid bleach composition of the present invention contains an anionic surfactant as the component (f). Examples of the anionic surfactant include alkyl having 10 to 18 carbon atoms or alkenyl group having alkenyl group or alkenylbenzene sulfonate, polyoxyalkylene (average number of added alkylene oxide of 0.5 to 5) alkyl (10 carbon atoms). -18) ether sulfate ester, alkyl (carbon number 10-16) sulfate ester salt, α-olefin (carbon number 8-18) sulfonate, α-sulfo fatty acid (carbon number 10-16) lower alkyl (carbon number) 1-3) Ester salt is mentioned.

As the alkylbenzene sulfonate, any of those generally distributed in the detergent surfactant market can be used as long as the alkyl group has 10 to 18, preferably 10 to 14, carbon atoms, For example, Neo-Perex F25 manufactured by Kao Corporation, Dobs102 manufactured by Shell, etc. can be used. Industrially, alkylbenzene widely distributed as a detergent raw material can be obtained by sulfonation using an oxidizing agent such as chlorosulfonic acid or sulfurous acid gas. The polyoxyalkylene alkyl ether sulfate ester salt has an average of 10 to 18 carbon atoms, preferably 10 to 16 carbon linear or branched primary alcohol or linear secondary alcohol, and ethylene oxide per molecule. 0.5-5 mol is added, and this can be obtained by sulfation using the method described in JP-A-9-137188, for example. The alkyl sulfate salt is obtained by sulfonating a linear or branched primary alcohol or linear secondary alcohol having 10 to 16 carbon atoms, preferably 10 to 14 with SO ₃ or chlorosulfonic acid, and neutralizing. it can. The α-olefin sulfonate can be obtained by sulfonating an α-alkene having 8 to 18 carbon atoms with SO ₃ and hydrating / neutralizing the compound, and a compound having a hydroxy group in the hydrocarbon group. A mixture of compounds in which a saturated bond is present. In addition, as the α-sulfo fatty acid lower alkyl ester salt, the alkyl group preferably has 10 to 16 carbon atoms, and methyl ester or ethyl ester is preferable from the viewpoint of washing effect. As the salt of component (f), sodium salts, potassium salts, magnesium salts, calcium salts, alkanolamine salts, and ammonium salts are preferable, and sodium salts, potassium salts, and magnesium salts are preferable from the viewpoint of cleaning effect.

  The content of the component (f) is preferably 1 to 30% by mass, further 2 to 20% by mass, and more preferably 3 to 10% by mass in the liquid bleach composition of the present invention.

[PH]
The liquid bleach composition of the present invention has a pH of 3.5 to 6, preferably 3.5 to 5.5, particularly preferably 4 to 5 at 20 ° C. By setting the pH within the above range, the stability during storage of the component (a) and the component (c) can be maintained.

[Other ingredients]
The liquid bleach composition of the present invention preferably contains a bleach activator as the component (g). The bleach activator of component (g) is selected from alkanoyloxybenzene sulfonic acids having an alkanoyl group having 8 to 14 carbon atoms, alkanoyloxybenzene carboxylic acids having an alkanoyl group having 8 to 14 carbon atoms, and salts thereof. Although at least 1 type is mentioned, from a viewpoint of making the peracid production | generation at the time of dilution compatible with the stability in a product, the alkanoyloxybenzenesulfonic acid which has a C8-C12 linear or branched alkanoyl group, carbon Bleach activators selected from alkanoyloxybenzenecarboxylic acids having a linear or branched alkanoyl group of 8 to 12 and salts thereof are preferred.

  When the composition has a pH of 3.5 to 5.5 at 20 ° C., the component (g) is preferably a sulfonic acid type bleach activator from the viewpoint of peracid generation upon dilution, and particularly nonanoyl. Oxybenzenesulfonic acid and its salts are particularly preferred.

  As the salt, sodium salt, potassium salt, and magnesium salt are preferable, and sodium salt is particularly preferable from the viewpoint of solubility.

  The content of the component (g) is preferably 0.01 to 5% by mass, more preferably 0.1 to 3% by mass, and still more preferably 0.2 to 1% by mass in the liquid bleach composition of the present invention.

  The liquid bleach composition of the present invention may contain a sequestering agent having a phosphonic acid group or a base thereof as the component (h) from the viewpoint of improving the stability of hydrogen peroxide. Content of (h) component in a composition is 0.01-5 mass%, Furthermore, 0.05-1 mass% is preferable.

  Specific examples of the component (h) include ethane-1,1-diphosphonic acid, ethane-1,1,2-triphosphonate, ethane-1-hydroxy-1,1-diphosphonic acid, ethane-1-hydroxy- Examples include organic phosphonic acid derivatives such as 1,1,2-triphosphonic acid, ethane-1,2-dicarboxy-1,2-diphosphonic acid, methanehydroxyphosphonic acid, nitrilotrimethylenephosphonic acid, ethylenediaminetetrakismethylenephosphonic acid, and the like. . These can be used alone or in combination of two or more. Of these, ethane-1-hydroxy-1,1-diphosphonic acid, ethylenediaminetetrakismethylenephosphonic acid and the like are preferable, and ethane-1-hydroxy-1,1-diphosphonic acid is particularly preferable.

  The liquid bleach composition of the present invention may contain a solvent as the component (i) from the viewpoint of preventing thickening at low temperatures. (I) Component includes alcohols such as ethanol, propanol, butanol, glycols such as ethylene glycol, propylene glycol, trimethylene glycol, butyl diglycol, diethylene glycol, triethylene glycol, diethylene glycol butyl ether, triethylene glycol phenyl ether, etc. And polyalkylene glycol monoalkyl or aryl ethers. Among these, ethanol or propylene glycol is preferable, and propylene glycol is particularly preferable. (I) Component content is 0.5-15 mass% in the liquid bleach composition of this invention, Furthermore, 1-10 mass%, Furthermore, 2-5 mass% is more preferable.

  The liquid bleach composition of the present invention can further contain a fragrance as the component (j) in order to broaden the variation of the fragrance. The component (j) can also be used as a fragrance mixture containing a plurality of fragrance components in a specific ratio. Perfume ingredients include “Chemistry of Perfume” (Ryoichi Akahoshi, edited by the Chemical Society of Japan, Industrial Chemistry Series, published on September 16, 1983) and “Synthetic Perfume Chemistry and Product Knowledge” (Author Motoichi Into, Chemical Industry) Nikkansha, published on March 6, 1996) and "Actual knowledge of perfumes and fragrances" (by Motoki Nakajima, Sangyo Tosho Co., Ltd., issued on June 21, 1995) can be used.

  As perfume ingredients, hydrocarbon compounds, alcohol compounds, ether compounds, aldehyde compounds, ketone compounds, ester compounds, lactone compounds, carboxylic acid compounds, cyclic ketone compounds, Schiff base compounds, Schiff bases Other nitrogen-containing compounds (such as nitrile, amine, oxime, and quinoline), and natural essential oils. Specific examples thereof are the same as those shown in pages 7 to 13 (paragraphs 0030 to 0044) of JP-A No. 2006-161229.

  (J) Content of a component is 0.01-5 mass% in the liquid bleach composition of this invention, Furthermore, 0.1-3 mass%, Furthermore, 0.2-2 mass% is more preferable.

  In addition, the liquid bleach composition of the present invention can contain optional components such as radical trapping agents, silicones, bactericides, fluorescent dyes, enzymes and the like. The liquid bleach composition of the present invention contains water, and usually the balance of the composition is water. The water content in the composition is preferably 15 to 85% by mass, and more preferably 20 to 80% by mass.

  The liquid bleach composition of the present invention is suitable for textile products such as clothes, bedding, and fabrics.

  The components shown in Table 1 were mixed to obtain liquid bleach compositions (present products 1 to 8 and comparative products 1 to 8). Using the obtained liquid bleach composition, its storage stability (product odor change, hydrogen peroxide stability), odor of fabric treated with the liquid bleach composition, and bleaching power were evaluated by the following methods. The results are shown in Table 1.

In addition, as each component in a table | surface, the following were used.
<Compounding ingredients>
・ A-1; hydrogen peroxide ・ b-1: polyoxyethylene lauryl ether (oxyethylene average addition mole number 20, HLB16.5)
B-2: polyoxyethylene lauryl ether (oxyethylene average addition mole number 9, HLB 13.6)
B-3: polyoxyethylene myristyl ether (oxyethylene average addition mole number 9, HLB 13.0)
B′-1: polyoxyethylene lauryl ether (oxyethylene average addition mole number 4, HLB 9.6)
B′-2: Polyethylene glycol monolaurate (oxyethylene average addition mole number 12, HLB 13.7, fatty acid ester type nonionic surfactant)
B′-3: polyoxyethylene lauryl ether (oxyethylene average addition mole number 40, HLB18.1)
C-1: Octylsilicic acid tris (2-phenylethyl) ester obtained in Synthesis Example 1 below c-2: Tetrakis (cis-3-hexenyloxy) silane obtained in Synthesis Example 2 below c ′ -1: phenylethyl alcohol, c'-2: cis-3-hexenol, d-1: boric acid (boron atom content is 15.3% by mass, and the blending amount in the table is, for example, 1.5% by mass In this case, the amount of boron atoms is 0.26% by mass.)
E-1: sorbitol f-1: alkyl (carbon number 12) benzenesulfonic acid g-1: sodium decanoyloxy-p-benzenesulfonate h-1: ethane-1-hydroxy-1,1- Diphosphonic acid (Daiquest 2010, manufactured by Solusia)
I-1: propylene glycol j-1: perfume (pearl ride / coumarin / benzyl salicylate (mass ratio) = 1/1/1)

Synthesis Example 1: Synthesis of octylsilicic acid tris (2-phenylethyl) ester [tris (2-phenylethyloxy) octylsilane] In a 300 mL four-necked flask, 83.01 g (0.30 mol) of octyltriethoxysilane and phenyl 127.76 g (0.83 mol) of ethyl alcohol and 0.857 mL of 2.8% sodium methoxide methanol solution were added, and the mixture was stirred at 110 to 115 ° C. for 2.5 hours while distilling ethanol under a nitrogen stream. After 2.5 hours, the pressure in the tank was gradually lowered to 8 kPa, and the mixture was further stirred at 110 to 119 ° C. for 3 hours while distilling ethanol. Three hours later, after cooling and releasing the reduced pressure, filtration was carried out to obtain 173.61 g of a pale yellow oily substance containing octylsilicic acid tris (2-phenylethyl) ester.

Synthesis Example 2: Synthesis of tetrakis (cis-3-hexenyloxy) silane [silica tetrakis (cis-3-hexenyl) ester] In a 200 mL four-necked flask, 35.45 g (0.17 mol) of tetraethoxysilane, cis- 3-Hexenol 64.74 g (0.65 mol), 2.8% sodium methoxide methanol solution 1.34 mL was added, and the mixture was stirred at 118 to 120 ° C. for about 2 hours while distilling ethanol under a nitrogen stream. After 2 hours, the pressure in the tank was gradually lowered to 8 kPa, and the mixture was further stirred at 112 to 119 ° C. for 3 hours while distilling ethanol. Three hours later, after cooling and releasing the reduced pressure, filtration was performed to obtain 66.17 g of a light brown oily substance containing tetrakis (cis-3-hexenyloxy) silane.

<Product odor change evaluation>
80 g of the liquid bleach composition was placed in a 100 mL glass sample bottle and stored at 40 ° C. for 1 month. Sensory evaluation of the odor change of the liquid bleach composition after storage was performed by 10 panelists specializing in fragrance intensity according to the following criteria, and the average value was obtained.
Evaluation criteria 3 Almost the same as the odor of the product before storage 2 Slightly different from the odor of the product before storage 1 Different from the odor of the product before storage 0 Very different from the odor of the product before storage

<Odor evaluation of cloth treated with liquid bleach composition>
In advance, using a commercially available detergent (Kao Corporation Attack High Activity Bio EX, manufactured on July 25, 2009), 24 cotton towels were repeatedly washed 5 times with Hitachi fully automatic washing machine NW-6CY and dried indoors. The excess chemical was removed (detergent concentration: 0.0667 mass%, using tap water 47 L, water temperature 20 ° C., washing 10 minutes, twice for rinsing).

The liquid bleach composition shown in Table 1 was stored at 40 ° C. for 1 month, and the liquid bleach composition after storage was added to 3 ° DH hard water at 25 ° C. so as to be 0.1% by mass, and prepared as described above. One cotton towel was washed with a tartometer (100 rpm × 10 minutes, bath ratio 15). Then, it was rinsed and dried with tap water, and the sensory evaluation of the odor of this towel was performed by 10 panelists specializing in fragrance intensity according to the following criteria, and the average value was obtained.
Evaluation Criteria 3 Strong scent from towel 2 Scent from towel 1 Slight scent from towel 0 Little scent from towel

<Storage stability evaluation of hydrogen peroxide>
80 g of the liquid bleach composition was placed in a 100 mL glass sample bottle and stored at 40 ° C. for 2 months. The hydrogen peroxide content in the liquid bleach composition before and after storage was measured by the iodometry method, and the hydrogen peroxide residual rate was determined by the following equation.
Hydrogen peroxide residual rate (%) = (hydrogen peroxide content after storage) / (hydrogen peroxide content before storage) × 100

<Evaluation of bleaching power>
The liquid bleach composition shown in Table 1 was stored at 40 ° C. for 2 months, and the liquid bleach composition after storage was added to a concentration of 0.1% by volume using 25 ° C. 3 ° DH hard water, Four pieces of the meat sauce-contaminated cloth prepared below were washed with a targotometer (100 rpm × 10 minutes). Thereafter, it was rinsed with tap water and dried, and the bleaching rate was determined by the following formula.
Bleaching rate (%) = [(reflectance of contaminated cloth after bleaching−reflectance of contaminated cloth before bleaching) / (reflectance of white cloth−reflectance of contaminated cloth before bleaching)] × 100
The reflectance was measured using NDR-10DP manufactured by Nippon Denshoku Industries Co., Ltd. using a 460 nm filter. The white cloth is an uncontaminated cloth (cotton gold cloth # 2003) used for preparing the contaminated cloth.

(Preparation of contaminated cloth)
After removing the solid content of meat sauce (meat sauce of ripe tomatoes (expiration date of August 9, 2009, lot number: D7809JC) / canned content of 295 g) manufactured by Kagome Co., Ltd. with a mesh (opening of eye: 500 μm), The resulting liquid was heated until boiling. Cotton gold cloth # 2003 was immersed in this solution and boiled for 10 minutes. After removing from the fire as it was for about 2 hours and leaving it to 30 ° C., the cloth was taken out, the excess liquid was removed with a spatula and allowed to dry naturally. Thereafter, it was pressed and subjected to an experiment as a test cloth of 8 cm × 8 cm.

  * The number in parentheses of the component (d) is a blending amount as a boron atom.

Claims (3)

Liquid bleach containing the following (a) component, (b) component, (c) component, (d) component, (e) component, and (f) component, and having a pH of 3.5 to 6 at 20 ° C. Composition.
Component (a): Hydrogen peroxide (b) Component: Polyoxyalkylene alkyl ether type nonionic surfactant (c) having an HLB of 10.5 to 17.5 determined by the Griffin method Component: General formula (1) Compound represented by

[Wherein, X is —OH, —R ¹ (R ¹ is an aliphatic hydrocarbon group having 1 to 22 carbon atoms optionally having a phenyl group, a hydroxyl group or an alkoxy group) or —OR ^2. (R ² is a residue obtained by removing one hydroxyl group from perfume alcohol), Y is X or —OSi (X) ₃ , and n is a number from 0 to 15 indicating an average value. A plurality of X and Y may be the same or different, but have at least one —OR ^{2 in} one molecule. ]
(D) component: at least one compound selected from boric acid, borax and borate (e) component: a compound in which one or more sites each having one hydroxyl group are present on both adjacent carbon atoms ( f) Anionic surfactant The component (c) is a compound in which R ² in the general formula (1) is a residue obtained by removing one hydroxyl group from a perfume alcohol and is a hydrocarbon group having 5 to 22 carbon atoms. Liquid bleach composition.   The liquid bleach composition according to claim 1 or 2, further comprising a bleach activator as component (g).