JP5677102B2 - Bleaching composition and washing method using the same - Google Patents

Description

  The present invention relates to a bleaching composition and a washing method using the same.

  In general, a bleaching composition (a bleaching detergent composition, a bleaching composition, or the like) in which a substance having a bleaching effect (bleaching component) is blended is used for washing or bleaching of textile products such as clothing. In such applications, hydrogen peroxide-based compounds such as peroxide that dissolves in water and generates hydrogen peroxide when used as a bleaching component are used. The bleaching composition is said to have effects such as sterilization and sterilization in addition to a bleaching effect by an oxidation reaction.

A bleaching composition in which a fragrance is blended with a bleaching composition used for washing or bleaching of a textile product to impart (scent) the scent is known.
In recent years, not only the perfume of these compositions per se, but also the interest in the scent remaining in the fiber product after the fiber product has been treated by washing or the like has increased. In particular, the scent after washing is an important factor in recalling cleanliness. For this reason, it is desired to maintain the fragrance imparted to the textile product (residual fragrance), and various proposals have been made for such a demand.

Conventionally, a liquid bleach composition containing hydrogen peroxide, a chelating agent, and a fragrance has been proposed (for example, Patent Document 1). According to invention of patent document 1, prevention of the fragrance deterioration of the mix | blended fragrance | flavor is aimed at.
In addition, a bleaching detergent composition in which hydrogen peroxide, a specific bleaching activator, a fragrance having a log P of 3.8 or more, an enzyme, and a surfactant have been proposed (for example, Patent Documents). 2). According to invention of patent document 2, it is excellent in fragrance stability, masks an enzyme odor, and can maintain a favorable fragrance from the start of use until clothes dry.
Alternatively, a composition containing a hydrogen peroxide, a nonionic surfactant, a chelating agent having a calcium chelate constant of 4 or more, and a perfume unstable to hydrogen peroxide, a metal-containing pigment is included. There has been proposed a liquid bleach contained in a container made of a thermoplastic resin and put in an uncoated single-layer container (for example, Patent Document 3). According to the invention of Patent Document 3, even when an aromatic compound unstable to hydrogen peroxide is blended in the liquid oxygen bleach, the change of the aromatic during storage can be suppressed.

JP 2002-338997 A Japanese Patent Laid-Open No. 2000-230197 JP-A-10-130698

However, although the techniques of Patent Documents 1 to 3 are intended to prevent the fragrance deterioration of the fragrance during storage, the technique still does not satisfy the residual fragrance of the textile product after washing. In addition, even if the content of the fragrance in the bleaching composition is simply increased, it is difficult to improve the fragrance according to the increased amount of the fragrance. In particular, there is a problem that the fragrance component having a log P of less than 3.8 hardly remains in the fiber product.
Then, this invention aims at the bleaching composition which can be fragrance | flavored with the outstanding residual scent property with respect to textiles, and the washing method using the same.

In recent years, with the increase in environmental awareness and saving consciousness, the remaining hot water of a bath is frequently used as washing water for washing. The remaining hot water in the bath contains dirt and various microorganisms. If the remaining hot water from the bath is used as washing water, dirt and microorganisms may adhere to the clothing and generate a unique odor, or the microorganisms attached to the clothing may grow while the laundry is being dried and cause odor. There is a problem of generating.
As a result of diligent study, the inventors of the present invention have made it possible to perfume the textiles after washing with excellent residual aroma by using water containing fatty acid triglyceride as washing water, as in the remaining hot water of the bath. The headline, the present invention has been reached.

That is, in the bleaching composition of the present invention, the logarithmic value of (A) component: hydrogen peroxide or a peroxide that generates hydrogen peroxide in water and (B) component: Ca ²⁺ is 5 A chelating agent having a logarithmic value of the chelate stability constant with respect to Fe ³⁺ of 10 or more and a logarithmic value of the chelate stability constant with respect to Cu ²⁺ of 10 or more, and the component (C): 1-octanol / water partition coefficient P A logarithmic log P of 3.8 containing a fragrance component of less than 3.8 and dispersed in water containing 2 to 200 μg / cm ³ of a fatty acid triglyceride.
The component (C) is 2-isobutyl-4-hydroxy-4-methylhydropyran, benzophenone, 2,4-dimethyl-4,4a, 5,9b-tetrahydrindeno [1,2d] -1,3. -It is preferable that it is 1 or more types selected from a dioxin.

The washing method of the present invention uses a washing liquid in which a bleaching composition containing the following components (A) to (C) is dispersed in water containing 2 to 200 μg / cm ^{3 of} fatty acid triglyceride, and It has the 1st process to process, It is characterized by the above-mentioned.
(A) Component: Hydrogen peroxide or a peroxide that generates hydrogen peroxide in water (B) Component: A logarithmic value of the chelate stability constant for Ca ²⁺ is 5.5 or more, and a chelate stability constant for Fe ³⁺ Chelating agent having a numerical value of 10 or more and a logarithmic value of the chelate stability constant for Cu ²⁺ of 10 or more (C) Component: Perfume component having a common logarithm log P of 1-octanol / water partition coefficient P of less than 3.8 After this treatment, it is preferred to have a second treatment which is rinsed with water newly containing 2 to 200 μg / cm ^{3 of} fatty acid triglyceride.

  According to the present invention, it is possible to perfume a textile product with excellent residual fragrance.

(Bleachable composition)
The bleaching composition of the present invention has a logarithmic value of 5.5 for component (A): hydrogen peroxide or a peroxide that generates hydrogen peroxide in water and (B) component: Ca ²⁺ . As described above, the chelating agent having a logarithmic value of the chelate stability constant with respect to Fe ³⁺ of 10 or more and a logarithmic value of the chelate stability constant with respect to Cu ²⁺ of 10 or more and (C) component: 1-octanol / water partition coefficient P It contains a fragrance component having a logarithm log P of less than 3.8.
The bleaching composition includes a bleaching detergent composition and a bleaching composition. A bleaching agent composition is a composition mainly for the purpose of bleaching textile products (to be washed) to be treated, with an emphasis on bleaching power. A bleaching detergent composition is mainly to be washed. Although the bleaching power is inferior to that of the bleaching composition, it is a composition that emphasizes the cleaning power.

 In this article, the washing water means water used for washing the laundry (washing water) or water used for rinsing (rinsing water), and means water in which the bleaching composition is not dispersed. . In addition, the washing liquid means one in which a bleaching composition is dispersed in washing water.

The dosage form of the bleaching composition is not particularly limited, and may be solid such as powder, tablet, briquette, sheet, bar, or liquid.
When making a bleaching composition into a granular material, it is preferable that the average particle diameter of a granular material is 200-1500 micrometers, for example, and it is more preferable that it is 250-1000 micrometers. If the average particle diameter is 200 μm or more, powdering during use is suppressed. On the other hand, if it is 1500 micrometers or less, the solubility to water will improve.
The average particle size in this article is a value determined by the following measurement method.

First, the measurement object (sample) is classified using a 9-stage sieve having a mesh opening of 1680 μm, 1410 μm, 1190 μm, 1000 μm, 710 μm, 500 μm, 350 μm, 250 μm, and 149 μm and a tray. In the classification operation, first, the 9-stage sieve is stacked above the pan so that the openings gradually increase, and a sample of 100 g / time is placed on the top of the sieve having the top opening of 1680 μm. Next, it was attached to a low-tap type sieve shaker (manufactured by Iida Seisakusho, tapping: 156 times / minute, rolling: 290 times / minute) and shaken for 10 minutes, and then remained on each sieve and tray. Samples are collected for each mesh and the sample mass is measured.
The mass frequency of the tray and each sieve is integrated, the initial sieve opening with an integrated mass frequency of 50% or more is set to a μm, the opening of the sieve that is one step larger than a μm is set to b μm, The average particle diameter (mass 50%) is obtained by the following mathematical formula (I), where c% is the integration of the mass frequency up to the a μm sieve and d% is the mass frequency on the a μm sieve.

<(A) component>
The component (A) is hydrogen peroxide or a peroxide that generates hydrogen peroxide in water.
Examples of peroxides that generate hydrogen peroxide in water (hereinafter sometimes referred to simply as peroxides) include inorganic substances such as sodium percarbonate, sodium perborate monohydrate, and sodium perborate tetrahydrate. A peroxide is mentioned, Especially, sodium percarbonate is preferable from the point of the solubility at the time of use, and the stability at the time of storage. These can be used individually by 1 type or in combination of 2 or more types.
When the bleaching composition is solid, a peroxide is used as the component (A). At this time, the bleaching composition may be mixed with a peroxide as it is, and in order to improve stability during storage and the like, coated particles in which the particles of the peroxide are coated (for example, coated Sodium carbonate particles) may be blended.
When the bleaching composition is a liquid, the component (A) may be either hydrogen peroxide or peroxide.

As the coated particles, known particles can be used. For example, the coated sodium percarbonate particles are coated with silicic acid and / or silicate and boric acid and / or borate, or a combination of a surfactant such as LAS and an inorganic compound. Are preferred. For example, as described in Japanese Patent No. 2918991, those coated by spraying silicic acid and / or an alkali metal silicate aqueous solution and boric acid and / or an alkali metal borate aqueous solution, etc. No. 2871298, aromatic hydrocarbon sulfonic acid and / or water-insoluble organic compounds such as paraffin and wax, coated with alkali silicate, carbonate, bicarbonate and sulfate having an average particle size of 10 to 500 μm The thing etc. which were coat | covered are mentioned. For non-hazardous material, it may be used by powder blending with various inorganic materials such as sodium carbonate and sodium hydrogen carbonate.
Further, when the bleaching composition is a composition containing a large amount of water due to the incorporation of a surfactant, etc., a coating peroxide or aromatic carbonization coated with sodium percarbonate with silicic acid and sodium borate. It is more preferable to use those coated with hydrogen sulfonic acid and alkali silicate, carbonate, bicarbonate and sulfate.
Examples of the coated sodium percarbonate particles include JP-A-59-196399, USP4526698 (both sodium percarbonate coated with borate), JP-A-4-31498, JP-A-6-40709, Examples thereof include those manufactured by the methods described in Kaihei 7-111803 and Japanese Patent No. 2871298.

 (A) When mix | blending a component with a bleaching composition as particle | grains (peroxide particle | grains or covering particle | grains), 200-1000 micrometers is preferable and, as for the average particle diameter of this particle | grain, 500-1000 micrometers is more preferable. Moreover, in order to improve solubility and stability, it is preferable that the particles having a particle diameter of less than 125 μm and the particles having a particle diameter exceeding 1400 μm are 10% by mass or less in the component (A).

 Although content of (A) component in a bleaching composition is not specifically limited, In the case of a liquid bleaching composition, 0.1-10 mass% is preferable, for example, and 0.5-6 mass% is more Preferably, 1 to 6% by mass is more preferable. If it is less than the lower limit, the desired bleaching effect may not be obtained, and if it exceeds the upper limit, the storage stability may be insufficient. In the case of a granular bleaching composition, for example, 1 to 90% by mass is preferable, and 3 to 60% by mass is more preferable. If it is less than the above lower limit value, the desired bleaching effect may not be obtained, and if it exceeds the above upper limit value, it becomes difficult to achieve a blending balance with other components.

<(B) component>
The component (B) has a logarithmic value of the chelate stability constant for Ca ²⁺ of 5.5 or more, a logarithm of the chelate stability constant for Fe ³⁺ of 10 or more, and a logarithm of the chelate stability constant for Cu ²⁺ of 10 or more. Is a chelating agent.
By containing the component (B), the liquid bleaching composition can suppress the decomposition of the component (A) and increase the adsorption power of the fatty acid triglyceride in the washing water with respect to the laundry. As a result, adhesion of the component (C) to the laundry is promoted through the fatty acid triglyceride.
In general, in the washing liquid, an anionic substance (mainly fatty acid) contained in the soil detached from the laundry or the washing tub and a polyvalent metal salt in the washing water form a water-insoluble salt. Fatty acid triglyceride (including a mixture with the component (C)) is in a competitive relationship with the water-insoluble salt in adsorption to the laundry. The presence of the component (B) in the laundry liquid captures the polyvalent metal in the laundry liquid and suppresses the formation of the water-insoluble salt. As a result, adsorption of fatty acid triglyceride (including a mixture with the component (C)) to the laundry can be promoted.
The component (C) having high affinity with the fatty acid triglyceride is adsorbed to the laundry as a mixture with the fatty acid triglyceride, or the component (C) is adhered to the laundry through the fatty acid triglyceride. , (C) The residual fragrance of the component can be enhanced.

(B) The logK value with respect to Ca < ²⁺ > of a component is 5.5 or more, More preferably, it is 6.5 or more. When the log K value for Ca ²⁺ is less than 5.5, calcium ions in the washing liquid cannot be sufficiently captured, and the residual fragrance of the component (C) becomes insufficient. The upper limit of log K is not particularly limited, but is preferably 15 or less.

The component (B) has a log K value for Fe ³⁺ of 10 or more, more preferably 12 or more. When a trace amount of iron ions are present in the bleaching composition containing hydrogen peroxide, the stability of the coexisting component (A) is lowered and the bleaching effect is lowered. In addition, there is a concern that turbidity or coloring may occur when a liquid bleaching composition is stored. If the log K value for Fe ³⁺ is less than 10, iron ions cannot be sufficiently captured and the bleaching effect is lowered. In addition, if the log K value for Fe ³⁺ is less than 10, iron ions in the washing liquid cannot be sufficiently captured, and the residual fragrance of the component (C) becomes insufficient. The upper limit value of log K for Fe ³⁺ is not particularly limited, but is preferably 30 or less.

The component (B) has a log K value for Cu ²⁺ of 10 or more, more preferably 12 or more. When a trace amount of copper ions are present in the composition containing hydrogen peroxide, the stability of the coexisting component (A) is lowered and the bleaching effect is lowered. In addition, there is a concern that turbidity or coloring may occur when a liquid bleaching composition is stored.
If the log K value for Cu ²⁺ is less than 10, copper ions cannot be sufficiently captured, and the bleaching effect is lowered. In addition, if the log K value for Cu ²⁺ is less than 10, calcium ions in the washing liquid cannot be sufficiently captured, and the residual fragrance of the component (C) becomes insufficient. The upper limit of the log K value for Cu ²⁺ is not particularly limited, but is preferably 25 or less.
The chelate stability constant is determined by the following formula (II).

Parallel reaction of metal ion and chelating agent ... M + AZ⇔MZ _A
M: metal ion, Z: chelating agent, MZ: complex salt, A: number of Z binding to one M, [MZ _A ]: concentration of MZ _A (mol / dm ³ ), [M]: concentration of M (Mol / dm ³ ), [Z]: Z concentration (mol / dm ³ ).

As component (B), 1-hydroxyethane-1,1-diphosphonic acid (log K value [Dotite catalog 13th edition, 1964 (from Dojin Chemical Laboratory and BRIQUEST catalog, 1994, ALBRIGHT &WILSON); Ca ²⁺ / Fe ³⁺ / Cu ²⁺ = 6.5 / 16.2 / 12.5, hereinafter the same), nitrilotrimethylene phosphonic acid (7.9 / 14.6 / 17.7), ethylenediaminetetrakismethylene phosphone Organic phosphonic acid derivatives such as acid (9.4 / 19.6 / 23.2), aminocarboxylic acids such as methylglycine diacetic acid trisodium salt (7.0 / 16.5 / 13.9), nitrilotriacetic acid (6.41 / 15.87 / 12.96), ethylenediaminetetraacetic acid (10.96 / 25.11 / 18.80), H Droxyethylethylenediamine triacetic acid (8.5 / 19.8 / 17.6), diethylenetriaminepentaacetic acid (10.74 / 28.6 / 21.53), triethylenetetramine hexaacetic acid (10.06 / 26.8) /19.2) aminopolyacetic acid and organic acids such as dicarboxymethyl glutamic acid tetrasodium (11.0 / 20.5 / 17.5), among which organic phosphonic acid derivatives and aminocarboxylic acids are preferred, Among the organic phosphonic acid derivatives, 1-hydroxyethane-1,1-diphosphonic acid having a small molecular weight is more preferable, as a main commercial product of 1-hydroxyethane-1,1-diphosphonic acid, BREQUEST ADPA (manufactured by Rhodia Japan). , Kyrest PH-210 (manufactured by Kyrest), DEQUEST 2010 (manufactured by Monsanto), etc. As examples of aminocarboxylic acids, Trilon M (manufactured by BASF) and the like can be given, and the same effect can be obtained by using any of them.

  0.1-5 mass% is preferable and, as for content of (B) component in a bleaching composition, 0.3-3 mass% is more preferable. If it is in the said range, the adsorption amount of the fatty acid triglyceride and (C) component to a to-be-washed article will improve, and also adhesion of the water-insoluble matter derived from an anionic substance will be suppressed, and residual fragrance property will improve. Further, in the case of a liquid bleaching composition, the appearance is good and the stability of the aroma and the bleaching component is also good.

<(C) component>
The component (C) is a fragrance component having a common logarithm log P of 1-octanol / water partition coefficient P of less than 3.8. The component (C) often has a characteristic aroma, but when it is poured into tap water, it tends to hardly remain in the laundry because of its low hydrophobicity. In the fragrance | flavor component below logP3.8, the effect of this invention is exhibited. The component (C) preferably has a log P of 1.5 or more and less than 3.8, more preferably a log P of 2.5 to 3.2. If the amount is less than the lower limit, the hydrophilicity is too high, the affinity with the fatty acid triglyceride is weakened, and the amount of adsorption onto the laundry is reduced.

  Here, LogP is a coefficient indicating the affinity for water and 1-octanol in an organic compound. 1-octanol / water partition coefficient P is a distribution equilibrium when a trace amount of compound is dissolved as a solute in a two-liquid solvent of 1-octanol and water, and is a ratio of the equilibrium concentration of the compound in each solvent. They are generally shown in the form of their logarithm (common logarithm) logP to the base 10.

  Log P values for many compounds have been reported and are published in Daylight Chemical Information Systems, Inc. Many values can be found in databases available from (Daylight CIS) and the like. When there is no measured log P value, it is most convenient to calculate with the program “CLOGP” available from Daylight CIS. This program outputs the value of “calculated logP (ClogP)” calculated by Hansch, Leo's fragment approach when there is an actually measured logP value.

 The component (C) can be determined according to the scent required for the bleaching composition. For example, 2-isobutyl-4-hydroxy-4-methylhydropyran (Fluorol), benzophenone, 2,4-dimethyl-4 , 4a, 5,9b-tetrahydrindeno [1,2d] -1,3-dioxin (Magnanol) is preferred in terms of fragrance quality.

Examples of the florol include those manufactured by Firmenich, and the florol has a fresh and soft floral fragrance, and is used, for example, as a floral blended fragrance.
Examples of Benzophenone include those manufactured by Simrise, and this Benzophenone has a weak geranium and rose-like fragrance, and is used for the purpose of giving woody and geranium notes, for example.
Examples of Magnolan include those manufactured by Simrise, Inc. Magnolan has a magnolia and geranium-like floral fragrance, and is used, for example, as a floral-type blended fragrance.

 Content of (C) component in a bleaching composition can be determined in consideration of the kind etc. of (C) component, for example, 0.0001-1 mass% is preferable, 0.05-0.8 mass% Is more preferable, and 0.1-0.5 mass% is further more preferable. If the amount is less than the lower limit, there is a possibility that the scent of the laundry becomes insufficient, and even if the upper limit is exceeded, the effect of the remaining fragrance is saturated and the remaining fragrance may not be further improved.

<Optional component>
If necessary, the bleaching composition may include a bleach activator (hereinafter referred to as component (D)), a cationic surfactant (hereinafter referred to as component (E)), and a surfactant other than component (E) (optional surfactant). Agent), perfume ingredients (arbitrary perfume ingredient) other than component (C), solvent for perfume, radical trapping agent, pH adjuster, hydrotrope agent, inorganic salt, etc. as dispersion medium of (C) ingredient or optional perfume It can contain as a component, and it is preferable to contain (D) component and / or (E) component especially.

≪ (D) component≫
Component (D) is a bleach activator. By containing the component (D), the bleaching composition exhibits a bleaching effect superior to that containing the component (A) alone, promotes the removal of dirt from the textiles, and has a washed-out scent. Get better.

  Examples of the component (D) include alkanoyloxybenzenesulfonic acid having 8 to 14 carbon atoms in the alkanoyl group, alkanoyloxybenzenecarboxylic acid having 8 to 14 carbon atoms in the alkanoyl group, and salts thereof. As the component (D), when the bleaching composition is added to the washing water, that is, from the viewpoint of achieving both the peracid generation when the component (D) is diluted with water and the stability in the product, Preference is given to alkanoyloxybenzenesulfonic acid having a linear or branched alkanoyl group having 8 to 12 carbon atoms, alkanoyloxybenzenecarboxylic acid having a linear or branched alkanoyl group having 8 to 12 carbon atoms and salts thereof.

In addition, when the bleaching composition has a pH of 2.5 to 4.0, the component (D) is preferably a sulfonic acid type bleach activator from the viewpoint of generation of peracid when added to washing water. Iloxybenzenesulfonic acid and its salts are particularly preferred. When the liquid bleaching composition has a pH of more than 4.0 and not more than 4.5, a carboxylic acid type bleaching activator is preferred from the viewpoint of the stability of the bleach activator in the product, and carbon from the viewpoint of solution stability. An alkanoyloxybenzenecarboxylic acid having an alkanoyl group of several 8 to 10 or a salt thereof is more preferable.
As the salt, sodium salt, potassium salt, and magnesium salt are preferable, and sodium salt is particularly preferable from the viewpoint of solubility.

  As the component (D), decanoyloxy-p-benzenesulfonate sodium represented by the following formula (d-1), a compound represented by the following formula (d-2) (decanoyloxy-p-benzenecarboxylic acid) Acid), a compound represented by the following formula (d-3) (isononanoyloxy-p-benzenecarboxylic acid (3,5,5-trimethylhexanoyloxy-p-benzenecarboxylic acid)), (d- 4) A compound represented by the formula (sodium nonanoyloxy-p-benzenesulfonate), a compound represented by the following formula (d-5) (nonanoyloxy-p-benzenecarboxylic acid), and a formula represented by the following (d-6) formula: (Octanoyloxy-p-benzenecarboxylic acid) and the like, and the compound represented by (d-1) or (d-2) is particularly preferable.

  The content of the component (D) in the bleaching composition is preferably 0.1 to 10% by mass, more preferably 0.2 to 5% by mass, and particularly preferably 0.2 to 2% by mass. %. If the amount is less than the lower limit, it is difficult to obtain the blending effect of the component (D), and even if it exceeds the upper limit, the blending effect of the component (D) is saturated and the bleaching effect may not be further improved.

≪ (E) ingredient≫
The component (E) is a cationic surfactant. By containing the component (E), the bleaching composition imparts antibacterial action to the laundry, prevents the generation of odor due to the growth of microorganisms, and prevents the deterioration of the fragrance accompanying the generation of this odor. Can be prevented.

 As the component (E), a conventionally known cationic surfactant can be used, and examples thereof include compounds represented by the following formulas (e-1) to (e-9).

[Wherein, R ^{2 to} R ^{5 each} represents an alkyl group or an alkenyl group in which at least one of them has 8 to 20 carbon atoms, preferably 8 to 18 carbon atoms, more preferably 10 to 16 carbon atoms, and the remaining is 1 carbon atom. -5, preferably 1-3 alkyl or hydroxyalkyl groups. R ⁶ represents an alkyl group having 1 to 14 carbon atoms, preferably 1 to 12 carbon atoms, or an aryl group optionally substituted with an alkyl group having 1 to 10 carbon atoms, preferably 1 to 5 carbon atoms. Furthermore, T ^- is -OSO ₃ ^-, -COO ^- or -SO ₃ ^- indicates, preferably -OSO ₃ ^- a. ]

  [In formula, h is an integer of 10-18. ]

  [Wherein, i and j are integers of 10 to 18, which may be the same or different. ]

  [Wherein, k and e are integers of 10-18. ]

  [Wherein, f and g are integers of 10 to 18, which may be the same or different. ]

  The content of the component (E) in the bleaching composition can be determined in consideration of the type of the component (E), for example, 0.1 to 30% by mass is preferable, and 0.1 to 20% by mass is more preferable. Preferably, 0.1-10 mass% is more preferable. If the amount is less than the lower limit, the antibacterial effect of the component (E) may not be exhibited, and the durability of the scent after washing may not be improved. Even if the upper limit is exceeded, the antibacterial effect may not be further improved. There is.

≪Optional surfactant≫
Examples of the optional surfactant include nonionic surfactants, anionic surfactants, and amphoteric surfactants.
Nonionic surfactants include, for example, polyoxyalkylene alkyl ether, polyoxyalkylene fatty acid ester, polyoxyethylene fatty acid ester oxyethylene propylene block polymer, alkyl (poly) glycoside, sorbitan fatty acid ester, polyoxyethylene sorbitan fatty acid ester, fatty acid A monoglyceride, an amine oxide, etc. are mentioned, Among these, the nonionic surfactant represented by following (1) Formula is preferable.

(1) In the _{formula, - [(C 2 H 4} O) k1 / (C 3 H 6 O) m1] - shows that the ethylene oxide and propylene oxide are randomly added.
(1) In the formula, R ¹ is a linear or branched alkyl group or alkenyl group. R ¹ has 8 to 18 carbon atoms, preferably 8 to 16 carbon atoms.
k1 and n1 are each a number of 1 or more indicating the average number of added moles of ethylene oxide.
It is k1 + n1 = 3-30, Preferably, it is 5-20. By setting it as the said range, the storage stability of a bleaching composition and the washing | cleaning performance with respect to an oil stain become favorable.
m1 is a number of 0.2 to 5 indicating the average number of added moles of propylene oxide, preferably 0.5 to 5. By setting it as the said range, as a bleaching composition, the detergency improvement effect of a stain stain | pollution | contamination and sufficient residual scent effect with respect to the textiles after washing are acquired. This nonionic surfactant is considered to be less adsorbed to the fiber product, have a low nonionic surfactant concentration at the time of rinsing, and the component (C) and the optional fragrance component are likely to remain in the fiber product.
The content of the nonionic surfactant in the bleaching composition is preferably 0.5% by mass or more and less than 20% by mass, and more preferably 3% by mass or more and less than 20% by mass. By setting it as the said range, the bleaching composition aims at the further improvement of the cleaning power with respect to a stain stain | pollution | contamination, and the further improvement of the sufficient residual scent effect with respect to the clothes after washing.

  Examples of anionic surfactants include alkylbenzene sulfonates having a C10-18 alkyl group or alkenyl group, polyoxyalkylene alkyl ether sulfates, alkyl sulfates, α-olefin sulfonates, α-sulfo fatty acids Salt, or α-sulfo fatty acid lower alkyl ester salt.

  As the amphoteric surfactant, a compound represented by the following formula (2) is preferable. This is because the cleaning effect can be improved.

[Wherein R ⁷ is an alkyl group or alkenyl group having 9 to 23 carbon atoms, preferably 9 to 17 carbon atoms, particularly preferably 9 to 15 carbon atoms, and R ⁸ is an alkylene group having 1 to 6 carbon atoms, preferably 2 or 3 carbon atoms. It is a group. B is a group selected from —COO—, —CONH—, —OCO—, —NHCO— and —O—, and d is a number of 0 or 1. R ⁹ and R ¹⁰ are each independently an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group, and R ¹¹ is optionally substituted with a hydroxy group having 1 to 5 carbon atoms, preferably 1 to 3 carbon atoms. An alkylene group; D is a group selected from —COO—, —SO ₃ ^— , and —OSO ₃ ^— . ]

However, when an amphoteric surfactant and a bleaching activator are used in combination, the stability of the bleaching composition may be lowered, so that attention must be paid to the formulation.
The content of the optional surfactant in the bleaching composition can be determined according to the use of the bleaching composition. For example, the content of the optional surfactant in the bleaching detergent composition is, for example, 4 to 70. % By mass is preferable, 10 to 50% by mass is more preferable, and 20 to 40% by mass is further preferable.
Moreover, 45 mass% or less is preferable, for example, and, as for content of the arbitrary surfactant in a bleaching agent composition, 4-40 mass% is more preferable.

≪Optional fragrance ingredient≫
A list of perfume ingredients used as optional perfume ingredients can be found in various publications such as “Perfume and Flavor Chemicals”, Vol. I and II, Stephen Arctander, Allured Pub. Co. (1994), “Synthetic fragrance chemistry and product knowledge”, Motoichi Into, Chemical Industry Daily (1996), “Perfume and Flavor Materials of Natural Origin”, Stephen Arctander, Allred Pub. Co. (1994), "Encyclopedia of Scents", edited by the Japan Fragrance Association, Asakura Shoten (1989), "Performerly Material Performance V.3.3", Boelens Aroma Chemical Information Service (1996), "Flower oils". Lajaujis Anonis, Allured Pub. Co. (1993), etc., each of which is incorporated herein by reference.

≪Perfume solvent≫
Examples of the perfume solvent include ethanol, acetin (triacetin), MMB acetate (3-methoxy-3-methylbutyl acetate), ethylene glycol dibutyrate, hexylene glycol, dibutyl sebacate, and deltile extra (isopropyl myristate). , Methyl carbitol (diethylene glycol monomethyl ether), carbitol (diethylene glycol monoethyl ether), TEG (triethylene glycol), benzyl benzoate, propylene glycol, diethyl phthalate, tripropylene glycol, aboline (dimethyl phthalate), deltyl prime (Isopropyl palmitate), dipropylene glycol DPG-FC (dipropylene glycol), farnesene, dioctyl adipate, Butyrin (glyceryl tributanoate), hydrolite-5 (1,2-pentanediol), propylene glycol diacetate, cetyl acetate (hexadecyl acetate), ethyl abiate, avaline (methyl abietate), citroflex A-2 (Acetyl triethyl citrate), citroflex A-4 (tributyl acetyl citrate), citroflex no. 2 (triethyl citrate), Citroflex No. 4 (tributyl citrate), durafix (methyl dihydroabietate), MITD (isotridecyl myristate), polylimonene (limonene polymer), propylene glycol, 1,3-butylene glycol and the like. Although these fragrance | flavor solvents are mix | blended 0.1 to 99% in a fragrance | flavor composition, Preferably 0.1 to 10% is mix | blended.
Examples of the fragrance stabilizer include dibutylhydroxytoluene, butylhydroxyanisole, vitamin E and its derivatives, catechin compounds, flavonoid compounds, polyphenol compounds, and the like, preferably 0.0001 to 10% in the fragrance composition. Is blended 0.001 to 5%. Among these, a preferable stabilizer is dibutylhydroxytoluene.
In the present invention, the fragrance composition is a mixture comprising the component (C) or an optional fragrance component, a fragrance solvent, a fragrance stabilizer, and the like. The content of the fragrance composition in the bleaching composition is, for example, 0.0001 to 15% by mass, preferably 0.001 to 10% by mass.

≪Radical trapping agent≫
As the radical trapping agent, a radical trapping agent conventionally used in a bleaching composition can be used, and a phenol radical trapping agent is preferably used. In particular, when the liquid bleaching composition has a pH of 5 or more, decomposition of hydrogen peroxide derived from the component (A) may not be sufficiently suppressed only by adding the component (B). For this reason, it is preferable to use a phenol type radical trap agent with (B) component. Also, for example, when a liquid bleaching composition is applied to a textile product that is to be washed and left for a long time, abnormal decomposition of hydrogen peroxide occurs due to components that are highly reactive with metals and hydrogen peroxide. , May damage the textile products. In such a case, the bleaching composition can suppress damage to the textile product by containing the phenol radical trapping agent.

The phenol-based radical trapping agent is phenol and a phenol derivative, and examples of the phenol derivative include a compound having a phenolic OH group, an ester derivative of a phenolic OH group, an ether derivative, and the like. The substitution position may be any of ortho, meta, and para positions. Among them, a compound having a phenolic OH group is preferable, and an oxidation-reduction potential (OP) described in “GE Penketh, J. Appl. Chem”, pages 7,512 to 521 (1957) ₀ Is more preferably 1.25 V or less, and (OP) ₀ is more preferably 0.75 V or less. (OP) As a compound having ₀ of 0.75 V or less, dimethoxyphenol, catechol, hydroquinone, 4-methoxyphenol, dibutylhydroxytoluene (BHT) and the like can be mentioned, among which 4-methoxyphenol is preferable.
The content of the radical trapping agent in the bleaching composition is preferably 0.01 to 6% by mass, for example, from the viewpoint of the decomposition inhibitory effect of hydrogen peroxide derived from the component (A), the economy, and the like. -1 mass% is more preferable.

≪pH adjuster≫
Examples of pH adjusters include inorganic acids such as hydrochloric acid, sulfuric acid or phosphoric acid, organic acids such as p-toluenesulfonic acid, citric acid or phosphonic acid derivatives, sodium borate, sodium hydroxide, potassium hydroxide, sodium carbonate, carbonic acid. Examples include sodium hydride, monoethanolamine, diethanolamine, triethanolamine, and ammonia. The pH of the liquid bleaching composition is preferably 2 to 7, and various pH adjusting agents can be used so as to obtain a desired pH.

≪Hydrotrope agent≫
Hydrotrope agents include alcohols such as ethanol, 1-propanol, 2-propanol or 1-butanol, glycols such as propylene glycol, butylene glycol or hexylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, weight average Water-miscible organic solvents such as polyethylene glycol having a molecular weight of about 200, polyglycols such as polyethylene glycol or dipropylene glycol having a weight average molecular weight of about 400, alkyl ethers such as diethylene glycol monomethyl ether or diethylene glycol dimethyl ether, paratoluene sulfone Thickening agents or solubilizers such as acids, benzoates and urea can be mentioned.
When using an organic solvent as a hydrotrope agent, the content of the organic solvent in the bleaching composition is preferably, for example, 0.1 to 15% by mass.
When using a thinning agent or solubilizer as a hydrotrope, the content of the thinning agent or solubilizer in the bleaching composition is preferably, for example, 0.01 to 10% by mass.

≪Inorganic salts≫
Examples of inorganic salts include sodium chloride, potassium chloride, sodium sulfate, sodium carbonate, potassium carbonate and the like.

(Production method)
The manufacturing method of a bleaching composition is not specifically limited, According to the dosage form of a bleaching composition, it can manufacture according to a conventional method.
As a manufacturing method of a liquid bleaching composition, the following method is mentioned, for example. First, components (A) to (C) and optional components as needed are dispersed or dissolved in water (ion-exchanged water) so as to obtain a desired blending amount in terms of the pure component of each component. Subsequently, a liquid bleaching composition is obtained by adjusting to predetermined pH using a pH adjuster.

As a manufacturing method of a solid bleaching composition, the manufacturing method similar to manufacturing methods, such as general powder detergent for clothing, is mentioned. For example, dry blending methods such as dry blending method, dry granulation method, stirring granulation method and crushing granulation method in which components (A) to (C) and optional components are mixed as necessary, paste Examples thereof include wet granulation / drying methods such as granulation / drying method and wet granulation / drying method, spray drying method, extrusion granulation method of kneaded product, etc., and combining a plurality of these methods as appropriate it can.
For example, a method of spraying the component (C) to a dry blend of the components (A) to (B) and the powdery optional component to obtain a powdery bleaching composition can be mentioned. Furthermore, if necessary, the components (D) to (E) are added by spraying or dry blending, or the extrudate granulated product or crushed product of the (D) to (E) component is added, A powdery bleaching composition may be obtained. Moreover, you may shape | mold into desired shapes, such as a tablet, a briquette, a sheet | seat, or a bar.

(Washing method)
The washing method of the present invention is a first method of treating a textile product using a washing liquid in which the bleaching composition of the present invention is dispersed in water containing a fatty acid triglyceride (hereinafter sometimes referred to as triglyceride-containing water). It has a processing of.

The first treatment is, for example, a method in which triglyceride-containing water is used as washing water, a bleaching composition is dispersed in the washing water to form a washing liquid, and the laundry is immersed in the washing liquid and washed or bleached. Can be mentioned.
Alternatively, a method in which triglyceride-containing water and a bleaching composition are put into a washing tub of a washing machine to form a washing liquid, and the laundry is poured into the washing liquid, and the washing machine is operated to wash or bleach the laundry. Is mentioned.

 The fatty acid triglyceride in the triglyceride-containing water is not particularly limited, and examples thereof include triglycerides of saturated or unsaturated fatty acids having 8 to 12 carbon atoms. Among these, triglycerides of unsaturated fatty acids having 16 to 20 carbon atoms are preferable, and triglycerides of unsaturated fatty acids having 18 carbon atoms are more preferable.

The triglyceride-containing water contains 2 to 200 μg / cm ³ of fatty acid triglyceride. The content of the fatty acid triglyceride in the triglyceride-containing water is preferably 100 to 150 μg / cm ³ . If it is less than 2 μg / cm ³ , the residual fragrance to the fiber product will be insufficient, and if it exceeds 200 μg / cm ³ , the dispersibility of the fatty acid glyceride in the wash water will be reduced, and it will adhere uniformly to the laundry. This is because it becomes difficult.

 Examples of the triglyceride-containing water include, for example, bath remaining hot water and water in which fatty acid triglyceride is dispersed in tap water or well water. Among them, bath remaining hot water is preferable. The remaining hot water in the bath is one in which fatty acid triglycerides are uniformly dispersed. Therefore, the remaining bath water can be used as washing water in the washing method of the present invention without requiring a complicated operation such as dispersing fatty acid triglyceride in water.

 The amount of the bleaching composition added to the washing water is, for example, preferably 0.03 to 2 parts by mass and more preferably 0.06 to 1 part by mass with respect to 100 parts by mass of the washing water. If it is less than the above lower limit value, the desired washing effect or bleaching effect may not be obtained, and if it exceeds the above upper limit value, it is difficult to rinse off excess bleaching composition adhering to the laundry. There is a risk.

 The laundry is not particularly limited as long as it is a textile product. Examples of the textile products include clothes, cloths, sheets, curtains, and the like that are targeted for washing with the bleaching composition.

 The washing method of the present invention may include a rinsing process (second process) for the laundry processed in the first process using the triglyceride-containing water as a rinse water. By having a 2nd process, the improvement of the further fragrance property can be aimed at.

The triglyceride-containing water used in the second treatment is the same as the triglyceride-containing water used in the first step.
After the first treatment, the laundry may be rinsed with rinsing water such as tap water or well water that does not substantially contain fatty acid triglyceride. However, it is preferable to use triglyceride-containing water as the rinsing water from the viewpoint of improving the residual fragrance.

As described above, the bleaching composition of the present invention contains the component (A), so that stains on the laundry can be satisfactorily removed. In addition, the bleaching composition can be flavored to the textile product which is a laundry by containing (C) component.
Furthermore, the bleaching composition of the present invention can contain the component (B) and triglyceride-containing water as a washing liquid, whereby the component (C) can be aromatized with excellent residual fragrance.

The component (C) is a fragrance component having a low hydrophobicity of less than Log P3.8, and is easier to dissolve and disperse in water than a fragrance component of Log P3.8 or higher. For this reason, when tap water, well water, or the like is used as washing water, the component (C) is difficult to transfer from the washing water to the laundry. As a result, the fragrance balance of the fragrance composition containing the component (C) is lost, or the residual fragrance after washing is weakened.
In the present invention, by using triglyceride-containing water as washing water for (C) component having low hydrophobicity, the (C) component can be efficiently left in the laundry, and the residual fragrance can be improved. In addition, the original fragrance can be maintained.

By using triglyceride-containing water as washing water, the mechanism by which the residual fragrance property in the laundry is improved is not clear, but is estimated as follows.
When the triglyceride-containing water is used as washing water, the fatty acid triglyceride adheres to the surface of the laundry or the component (C), and the affinity between the laundry and the component (C) is improved. And it is thought that the adsorption | suction to the to-be-washed material of the fragrance | flavor components including (C) component is accelerated | stimulated, and the residual scent property to to-be-washed material is improved.

Furthermore, according to the present invention, by having the second treatment using the triglyceride-containing water as the rinsing water, it is possible to further improve the residual fragrance properties. Although the mechanism by which the residual fragrance property in the laundry is improved by using the triglyceride-containing water as rinsing water is not clear, it is presumed as follows.
When tap water or well water is used as the rinsing water, the hydrophobicity of the component (C) is low, so that the component (C) attached to the laundry in the first treatment is easily transferred to the rinsing water. On the other hand, when triglyceride-containing water is used as the rinse water, the component (C) desorbed from the surface of the laundry in the second treatment is re-adsorbed on the laundry via the fatty acid triglyceride and is washed. It is thought that the fall of the residual amount of (C) component in a thing is suppressed.

  EXAMPLES Hereinafter, although an Example is shown and this invention is demonstrated in detail, this invention is not limited by the following description.

(Raw materials used)
<(A) component>
A-1: Hydrogen peroxide (trade name; hydrogen peroxide (35%), manufactured by Mitsubishi Gas Chemical Co., Ltd.)
A-2: Sodium percarbonate (trade name; PC-A, manufactured by Nippon Peroxide Co., Ltd.)
<(B) component>
Hereinafter, the Ca ²⁺ chelate constant represents the log K value for Ca ²⁺ , the Fe ³⁺ chelate constant represents the log K value for Fe ³⁺ , and the Cu ²⁺ chelate constant represents the log K value for Cu ²⁺ .
B-1: 1-hydroxyethane-1,1-diphosphonic acid (HEDP) (trade name; BRIQUEST ADPA-60A, Ca ²⁺ chelate constant = 6.5, Fe ³⁺ chelate constant = 16.2, Cu ²⁺ chelate constant = 12.5, Rhodia Japan Ltd.)
B-2: Trisodium methylglycine diacetate (MGDA · 3Na) (trade name: Trilon M, Ca ²⁺ chelate constant = 7.0, Fe ³⁺ chelate constant = 16.5, Cu ²⁺ chelate constant = 13.9, BASF (Made in Japan)
<(B ′) component: Comparative product of component (B)>
B′-1: Trisodium citrate dihydrate (trade name; purified sodium citrate, Ca ²⁺ chelate constant = 4.7, Fe ³⁺ chelate constant = 12.5, Cu ²⁺ chelate constant = 4.4, Fuso Chemical Industry Co., Ltd.)
<(C) component>
C-1: 2-isobutyl-4-hydroxy-4-methylhydropyran (trade name: Fluorol, log P = 2.58, manufactured by Virmenich)
C-2: Benzophenone (trade name: Benzophenone, log P = 3.15, manufactured by Simrise)
C-3: 2,4-dimethyl-4,4a, 5,9b-tetrahydrindeno [1,2d] -1,3-dioxin (trade name; Magnolan, log P = 2.67, manufactured by Simrise)
<(C ′) component: Comparative product of component (C)>
C′-1: Limonene (trade name; limonene, log P = 4.57, manufactured by Tokyo Chemical Industry Co., Ltd.)

<(D) component>
D-1: Sodium decanoyloxy-p-benzenesulfonate (OBS) (prepared in Production Examples described later)
D-2: Decanoyloxy-p-benzenecarboxylic acid (OBC) (trade name; 4-decanoyloxybenzoic acid, manufactured by Mitsui Chemicals, Inc.)
<(E) component>
E-1: Didecyldimethylammonium chloride (manufactured by Tokyo Chemical Industry Co., Ltd.)

<Optional component>
≪Nonionic surfactant≫
F-1: Nonionic surfactant obtained by randomly adding 4 mol of ethylene oxide and 2 mol of propylene oxide to natural alcohol (C12 / C14 = 7/3) and then adding 12 mol of ethylene oxide (Prepared in the production example described later)
F-2: Nonionic surfactant obtained by adding 7 moles of ethylene oxide to natural alcohol (C12 / C14 = 7/3) (prepared in the production examples described later)
≪Other ingredients≫
MQ: p-methoxyphenol (trade name; MQ-F, manufactured by Kawaguchi Chemical Co., Ltd.)
Sodium carbonate: Sodium carbonate (trade name: Dens ash, manufactured by Tokuyama Corporation)

<Washing water>
W-1: Triglyceride-containing water (residual bath water, fatty acid triglyceride content; 36.5 μg / cm ³ )
W-2: Triglyceride-containing water (residual bath water, fatty acid triglyceride content; 5 μg / cm ³ )
W-3: Triglyceride-containing water (residual bath water, fatty acid triglyceride content; 180 μg / cm ³ )
w-1: Tap water (fatty acid triglyceride content; less than 1 μg / cm ³ )

≪Measurement method of fatty acid triglyceride content≫
The wash water was concentrated to 1/20 using a rotary evaporator heated at 60 ° C. to prepare a sample. This sample was measured by the following method using a triglyceride kit “Triglyceride E-Test Wako (GPO / DAOS method)” manufactured by Wako Pure Chemical Industries, Ltd.

(1) Preparation of color developing reagent and reference solution Color developing reagent: Lipoprotein lipase (LPL), adenosine-5′-triphosphate disodium trihydrate (ATP), glycerol kinase (GK), glycerol-3-phosphorus Acid oxidase (GPO), peroxidase (POD), chromogenic substrate (4-aminoantipyrine, 3,5-dimethoxy-N-ethyl-N- (2′-hydroxy-3′-sulfopropyl) -aniline sodium (DAOS)) 1 bottle of a mixture of 4-aminoantipyrine and ascorbate oxidase dissolved in 1 bottle of Good Buffer.
Reference solution: one corresponding to 31.2 mg / 100 cm ^{3 of} glycerin and 300 mg / 100 cm ³ of triolein.
(2) A sample of 0.2 cm ³ was collected, and a color reagent 3 cm ³ was added thereto to prepare a sample solution. Further, 0.2 cm ³ of a reference solution was collected, and 3 cm ³ of a coloring reagent was added thereto to prepare a reference solution.
(3) After mixing well each sample solution, the reference solution, 5 min heating at 37 ° C., within one hour, targeting reagent blind (coloring reagent 3 cm ^3), the absorbance of the sample solution (E _S ) And the absorbance (E _std ) (measurement wavelength λ = 600 nm) of the reference solution were measured, and the triglyceride content was determined by the following formula (III).

Triglyceride content (mg / cm ³ ) = E _S / E _std × 30 (III)

(Production Example 1) Preparation of component D-1 As a raw material, sodium p-phenolsulfonate (reagent, manufactured by Kanto Chemical Co., Inc.), N, N-dimethylformamide (reagent, manufactured by Kanto Chemical Co., Ltd.), lauric acid chloride (reagent) , Manufactured by Tokyo Chemical Industry Co., Ltd.) and acetone (reagent, manufactured by Kanto Chemical Co., Ltd.).
100 g (0.51 mol) of sodium p-phenolsulfonate dehydrated in advance was dispersed in 300 g of dimethylformamide, and 111 g (0.51 mol) of lauric acid chloride was added dropwise at 50 ° C. over 30 minutes while stirring with a magnetic stirrer. did. After completion of the dropwise addition, the mixture was reacted for 3 hours, and dimethylformamide was distilled off at 100 ° C. under reduced pressure (0.5 to 1 mmHg). Then, it wash | cleaned with acetone and recrystallized in a water / acetone (= 1 mol / 1 mol) solvent, and D-1 was obtained. The yield was 90% by mass.

(Production Example 2) Preparation of F-1 224.4 g of “CO-1270” manufactured by Procter & Gamble Co. and 2.0 g of a 30% by mass NaOH aqueous solution were collected in a pressure-resistant reaction vessel, Replaced with nitrogen. Next, after dehydrating for 30 minutes at a temperature of 100 ° C. and a pressure of 2.0 kPa or less, the temperature was raised to 160 ° C. While stirring ethanol, 176 g of ethylene oxide (gaseous) and 116 g of propylene oxide were gradually added to ethanol through a blowing tube and allowed to react. At this time, the addition rates of ethylene oxide and propylene oxide were adjusted so that the reaction temperature did not exceed 180 ° C. Thereafter, 526 g of ethylene oxide (gaseous) was introduced and further reacted.
After completion of the addition of ethylene oxide, aging was performed at a temperature of 180 ° C. and a pressure of 0.3 MPa or less for 30 minutes, and then unreacted ethylene oxide and propylene oxide were distilled off at a temperature of 180 ° C. and a pressure of 6.0 kPa or less for 10 minutes. After cooling this to 100 ° C. or lower, 70% by mass p-toluenesulfonic acid was added to neutralize so that the pH of the 1% by mass aqueous solution of the reaction product was about 7, to obtain F-1.

(Production Example 3) Preparation of F-2 224.4 g of “CO-1270” manufactured by Procter & Gamble Co. and 2.0 g of 30% by mass NaOH aqueous solution were collected in a pressure-resistant reaction vessel, and the inside of the vessel was collected. Replaced with nitrogen. Next, after dehydrating for 30 minutes at a temperature of 100 ° C. and a pressure of 2.0 kPa or less, the temperature was raised to 160 ° C. While stirring the reaction solution, 354.7 g of ethylene oxide (gaseous) was gradually added into the reaction solution using a blowing tube. At this time, the addition rate of ethylene oxide was adjusted so that the reaction temperature did not exceed 180 ° C.
After completion of the addition of ethylene oxide, aging was performed at a temperature of 180 ° C. and a pressure of 0.3 MPa or less for 30 minutes, and then unreacted ethylene oxide was distilled off at a temperature of 180 ° C. and a pressure of 6.0 kPa or less for 10 minutes. After cooling this to 100 ° C. or lower, 70% by mass p-toluenesulfonic acid was added to neutralize so that the pH of the 1% by mass aqueous solution of the reaction product was about 7 to obtain F-2.

(Examples 1-14, Comparative Examples 1-5, Reference Example 1)
According to the composition shown in Tables 1-3, a liquid bleaching composition was prepared as follows according to a conventional method. The composition (mass%) in the table indicates the pure content of each raw material.
First, each raw material except sulfuric acid and Na hydroxide was put into a beaker containing a part of purified water, stirred and dispersed in purified water. Then, it adjusted to pH as described in a table | surface with a sulfuric acid or sodium hydroxide, the remainder of purified water was added, and 1 kg of bleaching compositions of each case were obtained.

(Examples 15 to 17)
According to the composition shown in Tables 2-3, a granular bleaching composition was prepared as follows.
Filling rate with a horizontal cylindrical rolling mixer (cylinder diameter 585 mm, cylinder length 490 mm, container 131.7 dm ³ with two baffle plates with a clearance of 20 mm and a height of 45 mm on the inner wall of the drum) After mixing (A) component, (B) component, (D) component and optional component under the conditions of 30% by volume, rotational speed 22 rpm, 25 ° C., rolling for 1 minute while further spraying (C) component, 40 kg of the bleaching composition of each example was obtained.

(Evaluation of residual fragrance)
Washing water 30 dm ³ shown in Tables 1 to ³ was put into a washing tub of a two-tub washing machine (trade name: CW-C30A1, manufactured by Mitsubishi Electric Corporation). Next, 20 g of the bleaching composition of each example and 20 g of a commercial laundry detergent (top: lot100201C3A) were dispersed in washing water to obtain a washing liquid. Seven pieces of commercially available T-shirts (100% cotton, manufactured by BVD) were put in the washing tub containing the washing liquid, and the two-tub washing machine was operated for 10 minutes with standard water flow (No. 1) After one treatment), it was dehydrated for 1 minute. Next, the two-tub washing machine was operated with the rinsing water shown in Tables 1 to 3 for 5 minutes (second treatment), and then dehydrated for 1 minute. The washing water and the rinsing water are both adjusted to 25 ° C.

  After the T-shirt thus washed was left in a constant temperature and humidity room at 25 ° C. and a humidity of 65% RH for 24 hours, ten professional panelists evaluated the fragrance remaining on the T-shirt by sensory evaluation. A T-shirt washed only with a commercial clothing detergent (top: lot100201C3A) was used as a standard product, and the comparison result with this standard product was scored according to the following scoring criteria. The average score of 10 panelists was classified into the following evaluation criteria, and the evaluation of residual fragrance was made.

<Scoring criteria>
3 points: The scent of the bleach composition can be clearly detected. 2 points: The scent of the bleach composition can be detected. 1 point: It can be perceived as different from the scent of the standard product (I do not know the scent of the bleach composition. )
0: Same fragrance as standard products

<Criteria>
◎: 2.5 points or more ◎: 2 points or more and less than 2.5 points ○: 1.5 or more and less than 2 points △: 1 point or more and less than 1.5 points ×: less than 1 point

As shown in Tables 1 to 3, in Examples 1 to 17 to which the present invention was applied, the evaluation of the remaining fragrance was “O” to “◎”. On the other hand, in Comparative Examples 1 to 5 to which the present invention is not applied, the evaluation of the residual fragrance was “x” or “Δ”. In addition, the reference example 1 using the fragrance | flavor component of log P3.8 or more had favorable residual fragrance property even if washing water and rinse water were set to w-1 (tap water). In addition, Examples 6 to 9 containing the component (D) and / or the component (E) are superior in residual fragrance compared to Example 1 not containing the component (D) and the component (E). It was.
Moreover, Example 1 which used triglyceride containing water (W-1) for rinse water was excellent in the remaining fragrance property compared with Example 2 which used tap water (w-1) for rinse water.

Claims (5)

(A) component: hydrogen peroxide or a peroxide that generates hydrogen peroxide in water;
Component (B): The logarithmic value of the chelate stability constant for Ca ²⁺ is 5.5 or more, the logarithm of the chelate stability constant for Fe ³⁺ is 10 or more, and the logarithm of the chelate stability constant for Cu ²⁺ is 10 or more. Chelating agents,
Component (C): 2-isobutyl-4-hydroxy-4-methylhydropyran, benzophenone, 2,4-dimethyl-4,4a, 5,9b-tetrahydrindeno [1,2d] -1,3-dioxin Containing one or more selected from
A bleaching composition characterized by being dispersed in water containing 2 to 200 µg / cm ^{3 of} fatty acid triglyceride. Furthermore, (E) component: A cationic surfactant is contained, The bleaching composition of Claim 1 characterized by the above-mentioned. Content of the said (C) component is 0.0001-1 mass%, The bleaching composition of Claim 1 or 2 characterized by the above-mentioned. The 1st process which processes a textiles using the washing | cleaning liquid which disperse | distributed the bleaching composition of any one of Claims 1-3 to the water containing fatty-acid triglyceride 2-200microgram / cm < ³ >. A washing method characterized by comprising: 5. The washing method according to claim 4 , wherein after the first treatment, the second treatment is rinsed with water newly containing 2 to 200 [mu] g / cm < ³ > of fatty acid triglycerides.