JP2003020500A - Two-pack type bleach - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a two-pack type bleach having high detergency for lipophilic stain. SOLUTION: This two-pack type bleach is obtained by filling an A agent and a B agent in a container separately keeping the A agent from the B agent, wherein the A agent comprises (A1) hydrogen peroxide and (A2) water and has pH of a specified range and the B agent comprises (B1) a polymer having a specified monomer unit and (B2) water and has pH within a specified range.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a two-pack bleaching agent.

[0002]

BACKGROUND OF THE INVENTION Problems such as stains on food spills and yellowing on underwear are stains that cannot be removed with ordinary detergents, and therefore, a bleaching agent is generally used in combination,
Methods such as using a detergent containing a bleach are used. Bleach can be divided into chlorine-based bleach and oxygen-based bleach, but chlorine-based bleach is limited in the fibers that can be used,
Oxygen-based bleaching agents which do not have these drawbacks have been remarkably prevalent in recent years because they cannot be used for colors and patterns and have a unique odor. Of these oxygen-based bleaching agents, sodium percarbonate and sodium perborate are used as powder bleaching agents, and hydrogen peroxide is used as a liquid oxygen-based bleaching agent. Liquid bleach compositions are preferred because of their advantages. The stains that are subject to direct cleaning in a general household are:
It contains various stains such as hydrophilic stains such as black tea and red wine and lipophilic stains such as curry and chili oil. In order to wash and bleach various spilled stains that are subject to direct coating cleaning, it is common to add a bleach activator, chelating agent, dispersant, etc., especially to lipophilic stains. The selection of components other than the agent has a great influence on the cleaning performance.

Further, a two-pack type liquid bleaching agent has been studied for the purpose of enhancing the bleaching performance and storage stability. JP-A-3-
140400, JP-A-6-166892,
Japanese Patent Application Laid-Open No. 9-157693 discloses a bleaching agent composition comprising agent A containing hydrogen peroxide and agent B containing a bleach activator. These techniques are superior in bleaching effect to the case where a liquid oxygen bleaching agent containing hydrogen peroxide as a main base is used alone, but it is not yet at a satisfactory level. Further, JP-A-9-48997, JP-A-9-157693, and JP-A-3-140400 disclose a bleaching agent composition comprising agent A containing hydrogen peroxide and agent B containing an alkaline agent. Although disclosed, the detergency to lipophilic stains is not at a satisfactory level.

Therefore, the problem to be solved by the present invention is to provide a two-component liquid bleaching agent having a high bleaching detergency for lipophilic stains.

[0005]

The present invention contains (A1) hydrogen peroxide [hereinafter referred to as (A1) component] 0.1 to 20 mass% and (A2) water, and has a pH of 1 at 20 ° C. ．
Agent A comprising a composition of 0 to 7.0, (B1) a polymer having a monomer unit represented by the following general formula (I) [hereinafter referred to as (B1) component] 3 to 20 mass% and (B2) ) It contains water and has a pH of 9.0-1 at 20 ° C.
A two-component bleaching agent obtained by filling a container for separately holding the agent A and the agent B with the agent B having the composition of 3.5.

[0006]

[Chemical 2]

[Wherein X, Y, and Z are -H and-, respectively.
Represents CH ₃ , -COOM, -CH ₂ COOM, -OH,
M represents H or an alkali metal. ].

The bleaching agent in the present invention includes not only the bleaching agent as an auxiliary agent for detergents but also the use as an independent detergent.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION <A agent> Since the A agent of the present invention can obtain a good bleaching effect, the component (A1) is 0.1 to 0.1%.
20% by mass, preferably 0.5 to 10% by mass, particularly preferably 1 to 6% by mass. The hydrogen peroxide concentration is measured by a titration method using potassium permanganate.

The pH of agent A at 20 ° C. is 1.0.
˜7.0, preferably 1.5 to 5.0, more preferably 2.0 to 5.0. It is preferable to use an acid agent in order to adjust to such a pH. Sulfuric acid, phosphoric acid, boric acid, phosphonic acid, phosphonocarboxylic acid, carboxylic acid, polycarboxylic acid and aminocarboxylic acid are preferable as the acid agent for adjusting the pH. Except for sulfuric acid, it has a chelating ability to trap heavy metals that cause the decomposition of hydrogen peroxide, and also has a buffering ability, so that even if a small amount of agent B is mixed in agent A, it suppresses the decomposition of hydrogen peroxide. be able to. The use of hydrochloric acid as an acid agent is not preferable because chlorine ions reduce the stability of hydrogen peroxide. It is preferable that the content of chlorine ions is suppressed and 0.2 mass% or less, further 0.02 mass% or less, and particularly substantially not contained in the agent A. The acid agent is 0.001 to 10 mass% in the agent A,
Furthermore, it is preferable to mix in the range of 0.1 to 5% by mass, particularly 0.1 to 3% by mass.

The agent A of the present invention may be blended with an alkaline agent as long as the above pH condition is satisfied. In agent A,
The alkali agent is preferably used for the purpose of adjusting pH, and alkali metal hydroxide is preferable.

<B-agent> The agent-B of the present invention is 3 to 20% by weight, preferably 3 to 20% by weight, of a polymer having a monomer unit represented by the general formula (I) as the component (B1) for the purpose of enhancing the bleaching and cleaning performance. Is 3 to 10% by mass, more preferably 5 to
Contains 10% by mass. In the component (B1), the ratio of the monomer unit of general formula (I) is 10 to 100 mol%, and further 5
0 to 100 mol%, particularly 90 to 100 mol% is preferable, and 100 mol% is most preferable. Also,
The component (B2) has a weight average molecular weight of 3,000 to 20,000.
0, further 3000 to 150,000, especially 3000 to 10
0000 is preferable. This weight average molecular weight is measured by gel permeation chromatography using polyethylene glycol as a standard substance. In addition, X, Y, Z, and M in the plurality of monomer units of the general formula (I) in the component (B1) may be the same or different. Examples of the monomer unit other than the monomer unit represented by the general formula (I) include ethylene, propylene, vinyl acetate, vinylpyrrolidone, methylvinylpyrrolidone, acrylamide, methylvinyl ether, styrene, pentene, isobutylene, diisobutylene, butadiene, allylsulfonic acid. And salts thereof.

The component (B1) is blended with the agent B, but it is preferable that the agent A does not contain the component (B1).
Further, more preferably, the component (B1) is preferably blended as an alkali metal salt.

Specific examples of preferred component (B1) include:
Mention may be made of homopolymers of acrylic acid, methacrylic acid or maleic acid or copolymers thereof, copolymers of these with copolymerizable unsaturated compounds, alkali metal salts of these homopolymers or copolymers. Specifically, sodium polyacrylate (or potassium) or sodium polymethacrylate (or potassium) having a weight average molecular weight of 3,000 to 30,000, and a weight average molecular weight of 20,000 to 100,000, preferably 50, The sodium salt (or potassium salt) of acrylic acid-maleic acid copolymer from 000 to 80,000 is preferred. In the case of acrylic acid-maleic acid copolymer, the mass ratio of acrylic acid / maleic acid is 5/5 to
9/1, preferably 6/4 to 8/2 is preferable from the viewpoint of cleaning effect.

The agent B is 2 in terms of the bleaching effect and the storage stability.
The pH at 0 ° C. is 9.0 to 13.5, preferably 9.
5 to 11.5, and more preferably 10.0 to 11.0. In order to adjust the pH of the agent B of the present invention to such a pH,
It is preferable to add an alkaline agent.

The alkaline agent is preferably one or more selected from alkali metal hydroxides, alkaline earth metal hydroxides, carbonates, silicates and alkanolamines, and specifically, sodium hydroxide and hydroxide. Potassium, sodium silicate, potassium silicate, sodium carbonate, potassium carbonate, sodium silicate, potassium silicate, monoethanolamine, diethanolamine, triethanolamine, preferably sodium hydroxide, potassium hydroxide,
It is one or more selected from sodium carbonate, potassium carbonate and monoethanolamine.

The alkali agent is preferably blended in the agent B in the range of 0.1 to 20% by mass, more preferably 1 to 15% by mass, and particularly 4 to 15% by mass.

In addition to the alkaline agent, the agent B of the present invention contains p
An acid agent may be added as long as the H condition is satisfied. The acid agent is preferably sulfuric acid, hydrochloric acid, nitric acid, phosphoric acid, boric acid, phosphonic acid, phosphonocarboxylic acid, carboxylic acid, polycarboxylic acid and aminopolycarboxylic acid. Some of these may be used as sequestering agents described below.

Further, in the present invention, for the purpose of further improving the bleaching and cleaning performance of the agent B, an amphoteric surfactant as the component (B3) is 0.1 to 20% by mass, preferably 0.1 to 10% by mass,
More preferably, it is suitable to contain 0.5 to 5 mass%. The component (B3) is preferably added to the agent B. More preferably, the agent A does not contain the component (B3).

The component (B3) is represented by the following general formula (II)
The amine oxide represented by

[0021]

[Chemical 3]

[In the formula, at least one of R ²¹ , R ²² and R ²³ is a linear or branched carbon atom having 6 to 6 carbon atoms, which may be interrupted by an ester bond, an amide bond or an ether bond.
22, preferably 8 to 20, particularly preferably 8 to 15 are alkyl or alkenyl groups, and the other groups are alkyl groups or hydroxyalkyl groups having 1 to 5 carbon atoms, preferably 1 to 3 carbon atoms. ].

<Relationship between Agent A and Agent B> The two-pack bleaching agent of the present invention comprises Agent A and Agent B. The pH at 20 ° C. of the mixture obtained by mixing the agents A and B in equal amounts is 9.5 to 1
It is preferably 1.0, more preferably 10.0 to 11.0. It is preferable to adjust the composition of each of the agent A and the agent B so as to have such a pH. Specifically, it can be achieved by increasing the buffering capacity of agent B over agent A.

In use, the mixing ratio of the agent A and the agent B is not particularly specified, but the p of the mixed solution at 20 ° C.
H is 9.0 to 13.0, preferably 9.5 to 11.5,
Particularly preferably, it is 9.8 to 11.0 in order to enhance the bleaching cleaning effect. It is preferable to design the container and composition so as to have such a pH. <Other Components> In the present invention, the agent A is used as the component (A3) in the following general formula for the purpose of enhancing the bleaching cleaning performance against lipophilic stains. Bleach activator represented by (III) 0.1 to 20
% By mass, further 0.1-5% by mass, especially 0.1-1% by mass
It is preferable to contain

[0025]

[Chemical 4]

[In the formula, R ³¹ is a straight-chain or branched-chain carbon atom having 5 carbon atoms.
-19, preferably 6-14, more preferably 7-13.
Represents an alkyl group or an alkenyl group of A, and A is —SO ₃ M
Or COOM. Further, M represents an organic or inorganic cation. ].

Preferred examples of the component (A3) include octanoyloxy-p-benzenesulfonic acid, nonanoyloxy-p-benzenesulfonic acid, 3,5,5-trimethylhexanoyloxy-p-benzenesulfonic acid and decanoyl. Oxy-p-benzenesulfonic acid, dodecanoyloxy-p-benzenesulfonic acid, octanoyloxy-o- or -p-benzenecarboxylic acid, nonanoyloxy-o- or -p-benzenecarboxylic acid, 3, 5, 5
-Trimethylhexanoyloxy-o- or -p-benzenecarboxylic acid, decanoyloxy-o- or -p-benzenecarboxylic acid, dodecanoyloxy-o- or -p
-Benzenecarboxylic acid, and salts thereof.
As the salt, sodium salt, potassium salt and magnesium salt are preferable, and sodium salt is particularly preferable from the viewpoint of solubility. Among these, nonanoyloxy-p-benzenesulfonic acid, decanoyloxy-p-benzenecarboxylic acid, dodecanoyloxy-p-benzenesulfonic acid and salts thereof are preferable from the viewpoint of lipophilic stain bleaching effect.

In the present invention, the agent A and / or the agent B further comprises
It is preferable to contain one or more kinds of surfactants selected from nonionic surfactants, cationic surfactants, and anionic surfactants.

As the nonionic surfactant, a compound represented by the general formula (I
Compounds of V) are preferred. ^{R 41 -T - [(R 42} O) a -H] b (IV) wherein, R ⁴¹ is 10 to 18 carbon atoms, preferably 10 to
16 is an alkyl group or an alkenyl group, R ⁴² is an alkylene group having 2 or 3 carbon atoms, and preferably an ethylene group. a represents a number of 2 to 20, preferably 4 to 15, and particularly preferably 5 to 10. T is -O-, -CON-
Or -N-, and when T is -O-, b is 1.
B is 2 when T is -CON- or -N-. ].

The following compounds can be mentioned as specific examples of the compound of the general formula (IV). During ^{_{R 41 -O- (C 2 H 4}} O) r -H (IV-a) [wherein, R ⁴¹ have the same meanings as defined above. r is a number of 4 to 15, preferably 5 to 10. ] ^{_{R 41 -O- (C 2 H 4}} O) s - (C 3 H 6 O) t -H (IV-b) wherein, R ⁴¹ have the same meanings as defined above. s and t are each independently a number of 2 to 15, preferably 2 to 10, and ethylene oxide and propylene oxide may be random or block adducts. ]

[0031]

[Chemical 5]

In the present invention, among these, especially (IV-a)
Alternatively, a nonionic surfactant selected from (IV-b) is preferable.

The cationic surfactant is preferably a mono-long chain alkyl (or alkenyl) tri-short chain alkyl type cationic surfactant represented by the following general formula (V).

[0034]

[Chemical 6]

[In the formula, R ⁵¹ is an alkyl group or an alkenyl group having 8 to 18 carbon atoms, preferably 10 to 18 carbon atoms, and particularly preferably 10 to 16 carbon atoms, and R ⁵² , R ⁵³ and R ⁵⁴ are the same or different. It may be an alkyl group having 1 to 3 carbon atoms.
X ⁻ is an anion, preferably a halogen ion, having 1 carbon atom
Is an alkylsulfuric acid ester ion having 3 to 3 carbon atoms, a fatty acid ion having 1 to 12 carbon atoms, and an aryl sulfonate ion having 1 to 3 substituents having 1 to 3 carbon atoms. ].

Examples of the anionic surfactant include an alkyl group or an alkenyl group having 10 to 18 carbon atoms, preferably 10 to 16 carbon atoms, particularly preferably 10 to 15 carbon atoms, and --SO.
Anionic surfactants having ₃ M groups and / or -OSO ₃ M groups [M: counterion] are preferred. Specifically, alkylbenzene sulfonic acid having the above carbon number, alkyl (or alkenyl) sulfuric acid ester, polyoxyalkylene alkyl (or alkenyl) ether sulfuric acid ester, olefin sulfonic acid, alkane sulfonic acid, α-sulfo fatty acid, α-sulfo fatty acid Esters and their salts are preferred. Among these, alkyl (or alkenyl) sulfuric acid esters having an alkyl group or alkenyl group having 10 to 16 carbon atoms, an alkyl group or alkenyl group having 10 to 16 carbon atoms, and ethylene oxide (hereinafter referred to as EO) average The number of added moles is 1 to 6, preferably 1 to
4, particularly preferably 1 to 3, polyoxyethylene alkyl (or alkenyl) ether sulfate, or alkylbenzene sulfonic acid having 10 to 15 carbon atoms,
And, it is preferable to mix one or more selected from these salts. As the salt, sodium salt, potassium salt, ammonium salt, and alkanolamine salt are preferable from the viewpoint of storage stability.

The agent A of the present invention has a bleaching and washing effect.
0.5 to 30% by mass of nonionic surfactant, and further 1 to 2
It is preferable to contain 5% by mass, 0.1 to 2% by mass, and further 0.1 to 1% by mass of a cationic surfactant.

From the viewpoint of cleaning effect, the agent B of the present invention contains a nonionic surfactant in an amount of 0 to 50% by mass, more preferably 10 to 50% by mass.
It is preferable to contain 40% by mass, 0 to 30% by mass of anionic surfactant, 1 to 25% by mass, and 0 to 10% by mass, further 0.1 to 5% by mass of cationic surfactant. .

A solvent is preferably added to the agent A and / or agent B of the present invention for the purpose of enhancing the cleaning effect. As the solvent, (i) a monohydric alcohol having 1 to 5 carbon atoms, (ii)
A polyhydric alcohol having 2 to 12 carbon atoms, (iii) a compound represented by the following general formula (iii-1), (iv) a compound represented by the following general formula (iv-1), (v) Of the general formula (v
The compound represented by -1) is mentioned.

[0040]

[Chemical 7]

[In the formula, R ^a and R ^b each represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a phenyl group or a benzyl group, and when both R ^a and R ^b are hydrogen atoms, except. g represents a number from 0 to 10 and h represents a number from 0 to 10, except when both g and h are 0. R ^c and R ^d
Are each an alkyl group having 1 to 3 carbon atoms. R ^e represents an alkyl group having 1 to 8 carbon atoms. ].

Examples of the monohydric alcohol having 1 to 5 carbon atoms (i) include ethanol, propyl alcohol and isopropyl alcohol. These low grade (C1-C1
5) Stability of the system at low temperatures can be further improved by blending alcohol.

Examples of the polyhydric alcohol having 2 to 12 carbon atoms (ii) include isoprene glycol, 2,2,4-trimethyl-1,3-pentanediol, 1,8-octanediol and 1,9-nonanediol. , Ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, glycerin and the like.

The compound (iii) has a carbon number of 1 when R ^a and R ^b are alkyl groups in the general formula (iii-1).
-4 are especially preferable. Further, in the general formula (iii-1), E
Average moles of O and propylene oxide added, g and h
Is a number from 0 to 10 (both s and t are 0
However, the addition order of these is not particularly limited, and random addition may be performed. (Iii)
Specific examples of the compound of, ethylene glycol monobutyl ether, dipropylene glycol dimethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monobutyl ether, propylene glycol monoethyl ether, propylene glycol dimethyl ether, polyoxyethylene (P = 2 to 3) polyoxypropylene (p =
2-3) glycol dimethyl ether (p represents the average number of moles added), polyoxyethylene (p = 3) glycol phenyl ether, phenyl carbitol, phenyl cellosolve, benzyl carbitol and the like. Of these, propylene glycol monomethyl ether, diethylene glycol monobutyl ether, and polyoxyethylene (p = 1 to 4) glycol monophenyl ether are preferable from the viewpoints of detergency and feeling of use.

As the compound of (iv), 1,3-
Dimethyl-2-imidazolidinone, 1,3-diethyl-
2-Imidazolidinone is exemplified as a suitable one,
Alkyl glyceryl etherification as the compound of (v)
Compound, preferably R ^eIs an al having 3 to 8 carbon atoms
It is a compound of the kill group.

Of these, water-soluble solvents (i), (ii), (iii) and (v) are preferable in order to satisfy the properties of the present invention, particularly ethanol, isopropyl alcohol,
Ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, glycerin,
A solvent selected from isoprene glycol, propylene glycol monomethyl ether, propylene glycol monoethyl ether, pentyl glyceryl ether, octyl glyceryl ether, and polyoxyethylene (p = 1 to 4) glycol monophenyl ether is preferable.

The agent A and / or agent B of the present invention preferably contains such a solvent in an amount of 0 to 30% by mass, more preferably 5 to 20% by mass. Further, the solvent is preferably contained in the agent B.

Further, the agents A and / or B of the present invention include
It is preferable to add a sequestering agent. Examples of the sequestering agent include the following (C1) to (C8), and among them, at least one selected from (C2), (C5), (C6) and (C7) is preferable,
At least one selected from (C2) is more preferable. (C1) Phosphoric acid-based compound such as phytic acid or alkali metal salt or alkanolamine salt thereof (C2) ethane-1,1-diphosphonic acid, ethane-1,
1,2-triphosphonic acid, ethane-1-hydroxy-
Phosphonic acids such as 1,1-diphosphonic acid and its derivatives, ethanehydroxy-1,1,2-triphosphonic acid, ethane-1,2-dicarboxy-1,2-diphosphonic acid and methanehydroxyphosphonic acid, or alkalis thereof. A metal salt or an alkanolamine salt, (C3) 2-phosphonobutane-1,2-dicarboxylic acid,
1-phosphonobutane-2,3,4-tricarboxylic acid, α
Phosphonocarboxylic acids such as methylphosphonosuccinic acid or their alkali metal salts or alkanolamine salts (C4) Amino acids such as aspartic acid, glutamic acid, glycine or their alkali metal salts or alkanolamine salts (C5) nitrilotriacetic acid , Aminopolyacetic acid such as iminodiacetic acid, ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, glycol etherdiaminetetraacetic acid, hydroxyethyliminodiacetic acid, triethylenetetraminehexaacetic acid, dienecoric acid or their alkali metal salts or alkanolamine salts (C6) Diglycolic acid, oxydisuccinic acid, carboxymethyloxysuccinic acid, citric acid, lactic acid, tartaric acid, oxalic acid, malic acid, oxydisuccinic acid, gluconic acid, carboxymethylsuccinic acid, carboxymeth Alkali metal salt of aluminosilicic acid represented by organic acid such as tartaric acid or alkali metal salt or alkanolamine salt (C7) zeolite A thereof, or alkanolamine salt (C8) aminopoly (methylenephosphonic acid) or alkali metal salt thereof, or Alkanol amine salt, or polyethylene polyamine poly (methylene phosphonic acid) or its alkali metal salt or alkanol amine salt.

Such a sequestering agent is contained in the agent A and / or the agent B in a total amount of 0 to 5% by mass, more preferably 0.01 to 5% by mass.
It is preferably contained in an amount of 1% by mass.

In the present invention, the agent A and / or the agent B can contain, in addition to the above-mentioned components, known components usually added to a liquid bleaching agent. For example, it is preferable to use known magnesium sulfate, magnesium silicate, magnesium chloride, magnesium silicofluoride, magnesium salts such as magnesium oxide and magnesium hydroxide, and silicates such as sodium silicate as a stabilizer for hydrogen peroxide. Furthermore, it is preferable to add a redeposition preventing agent such as carboxymethyl cellulose, polyvinylpyrrolidone, or polyethylene glycol, if necessary.

The agents A and / or B of the present invention include
Furthermore, various compounds can be contained. For example, barbituric acid, which is known as a stabilizer for hydrogen peroxide, uric acid, acetanilide, aminopolycarboxylic acids represented by oxyquinoline and phenacetin, and DL-α-tocopherol, gallic acid derivative, butylated Hydroxyanisole (BHA), 2,6-di-t
It is preferable to add ert-butyl-4-methylphenol (BHT) or the like. These stabilizers are contained in the agent A and / or the agent B in a total amount of 0 to 5% by mass, and further 0.0
It is preferable to contain 1 to 3% by mass.

Further, the agents A and / or B of the present invention preferably contain a substance known as a discoloration preventing agent. Examples of such substances include phenylalanine, histidine,
Examples thereof include amino acids or salts thereof such as lysine, tyrosine and methionine, amino or imide compounds such as hydroxyiminodiacetic acid, copolymers of acrylonitrile and at least one monomer copolymerizable with acrylonitrile having a quaternary ammonium group. Although amino acids have optical isomers, the optical isomers do not participate in the effect of the present invention. Therefore, it is also possible to use chemically synthesized amino acids.

Furthermore, in the agents A and / or B of the present invention, as a fluorescent whitening agent in order to enhance the bleaching effect on bleached fibers, Tinopearl CBS (manufactured by Ciba Geigy),
Chino Pearl SWN (manufactured by Ciba Geigy) and color
Optical brighteners such as index optical brighteners 28, 40, 61, 71, etc., and conventionally known enzymes (cellulase, amylase, protease, for improving bleaching performance,
It is preferable to add a lipase) as needed.

Further, the agents A and / or B of the present invention include colorants such as dyes and pigments, fragrances, silicones,
It is preferable to add an appropriate amount of various trace additives such as a germicide and an ultraviolet absorber.

In addition to the above components, known components which are usually added can be added. A hydrotrope agent may be blended for the purpose of improving the stability and freeze-restoration property of the liquid at a low temperature and preventing the liquid separation at a high temperature.
As such a hydrotrope agent, in general,
A short-chain alkylbenzene sulfonate represented by toluene sulfonate and xylene sulfonate is preferable. The hydrotrope agent is the agent A and / or the agent B,
It is preferable to add 0 to 30 mass% in total.

The two-pack bleaching agent of the present invention is a detergent for clothes, a bleaching aid for clothing, a coating detergent for clothes, a cutting board, a tea bowl, a kitchen bleaching agent such as a sink, a dish detergent, a bath, a wall. It is preferably used for applications selected from bleaching agents for carpets. Further, it is more preferably used for bleaching and washing clothes.

The two-pack type bleaching agent of the present invention is preliminarily added to tap water with A
It can be used in a method of bleaching clothing by immersing the clothing in an aqueous solution in which the agent and the agent B are dissolved. Further, the two-pack type bleaching agent of the present invention can also be used as a mixture with a conventionally known clothing detergent.

Furthermore, in washing with a normal washing machine,
The two-pack bleaching agent of the present invention can also be used by mixing it with a conventionally known laundry detergent.

The two-pack bleaching agent of the present invention can be used in a bleaching method in which it is directly applied to clothing, allowed to stand and then washed with water. Alternatively, it can be used by mixing it with a conventionally known laundry detergent in a conventional washing machine after directly applying it on clothing and leaving it to stand. The standing time after application is 0 to 180
Minutes are preferred, and more preferably 1-60 minutes.

When the two-pack bleaching agent of the present invention is used as a laundry detergent, the two-pack bleaching agent of the present invention can be used for washing in an ordinary washing machine, or clothing. It is also possible to apply the product directly to and to leave it for washing in a usual washing machine.

In any of the embodiments, agent A and agent B are mixed for bleaching and washing. The mixing ratio of agent A and agent B is A agent / B agent = 1/5 to 5/1 in mass ratio. Preferably from 1/3
3/1 is preferable from the viewpoint of the bleaching cleaning effect. The mixing ratio of these is p at 20 ° C. after mixing the agents A and B.
From the viewpoint of the bleaching effect, it is preferable that H be 9 to 13, preferably 9.5 to 11.5, and particularly preferably 9.8 to 11.

In the two-component bleaching agent of the present invention, agent A, B
The viscosity of the agent at 20 ° C is 3 to 300 mPas.
.S, and preferably adjusted to a range of 3 to 200 mPa.s, from the viewpoint of usability. In the present invention, a viscosity modifier may be added to the agent A and / or the agent B in order to adjust to such a viscosity. As the viscosity modifier, an alkyl group having 1 to 3 carbon atoms or a hydroxy group is 1 to
Benzenesulfonic acid which may be substituted with 3, molecular weight 3
000 to 100,000 polyethylene glycol or polypropylene glycol can be used. Such a viscosity modifier is preferably contained in the agent A and / or the agent B in an amount of 0 to 10% by mass, and more preferably 0.01 to 5% by mass.

For the two-pack type bleaching agent of the present invention, it is preferable to use a container equipped with a discharging section capable of simultaneously discharging the agents A and B for the purpose of easily achieving the above-mentioned mixing ratio. Further, the container is capable of separately holding the agent A and the agent B. For example, an integrated container capable of storing the agent A and the agent B in different storage parts, a container capable of storing the agent A and the container B.
An example is a connection type container in which a container capable of containing the agent is joined with an appropriate member. The container used in the present invention is A
The ratio of the discharge amounts of the agent and the agent B is a mass ratio of agent A / agent B = 1/5
It is preferable to adjust the shape of each discharge part so that it becomes 5/1, preferably 1/3 to 3/1. The discharge amount can be adjusted by a known method by adjusting the viscosities of the agents A and B and the opening area and shape of the discharge portion.
From this point of view, the opening area of the ejection portion of the container used in the present invention has an area ratio of the A agent ejection portion and the B agent ejection portion of 1/5 to 5
/ 1, more preferably 1/3 to 3/1 is preferable for adjusting the discharge amount.

A schematic view of a concrete container used in the present invention is shown in FIGS. In FIG. 1, (11) and (12) are accommodating portions for the agent A or the agent B, and the agent A is accommodated in one side and the agent B is accommodated in the other side. Each container is separated by the partition wall (13), and the agent A and the agent B are separately held in the container.
(14) is a discharge part that discharges the A agent and the B agent at the same time. Further, (21) and (22) in FIG. 2 are accommodating portions for the A agent or the B agent, and the A agent is accommodated in one side and the B agent is accommodated in the other side. These are joined at the joint of (23). (2
4) is a discharge part for simultaneously discharging the A agent and the B agent.

The container used in the present invention is shown in FIG.
A cap that can measure agent A and agent B (1-
It is preferable to use 1) and (2-1). By using such a cap, it becomes possible to act on the dirt after mixing both the agent A and the agent B in the step of measuring the agent.

[0066]

As described above, according to the present invention, in the two-component bleaching agent containing the agent A and the agent B, the combined use of the polymer having the specific monomer unit provides excellent bleaching against lipophilic stains. The effect is obtained.

[0067]

EXAMPLES The agent A shown in Table 1 and the agent B shown in Table 2 were used in Table 3
Fill the container shown in FIG. 1 or 2 with the combination shown in FIG.
A formulation type liquid bleaching agent was prepared, and the bleaching effect was evaluated by the following method. The results are shown in Table 3. The pH in Tables 1 and 2 is 2
The value was measured at 0 ° C., and was adjusted using a 10 mass% sulfuric acid aqueous solution or a 30 mass% NaOH aqueous solution.

<Bleaching effect> From the two-part bleaching agent in Table 3, the agent A and the agent B were discharged so that the total amount was 1 ml (the ratio of the agent A and the agent B is as shown in Table 3), and prepared as follows. The four curry-contaminated cloths (lipophilic stains) were applied one by one and left for 5 minutes. Then, the mixture was poured into a commercially available aqueous detergent solution having a concentration of 0.0667% by mass, washed normally with a tergotometer (80 rpm × 10 minutes), rinsed with tap water and dried, and the bleaching rate was calculated by the following formula.

[0069]

[Equation 1]

The reflectance is ND-30 manufactured by Nippon Denshoku Industries Co., Ltd.
Measured using a 460 nm filter at 0A.

<Preparation of Curry Contaminated Cloth> After removing the solid content of retort curry (curry marche) made by House Foods with a mesh, the obtained solution was heated until it was boiled. A cotton cloth # 2003 was dipped in this solution and boiled for about 15 minutes. The mixture was removed from the heat as it was, and allowed to stand for about 2 hours. Then, the cloth was taken out, excess curry liquid adhering to it was removed with a spatula and naturally dried. Then, it was pressed and used for the experiment as a 10 cm × 10 cm test piece.

[0072]

[Table 1]

1) Polyoxyethylene lauryl ether (EO average addition mole number 6) 2) RO (C ₂ H ₄ O) _n (C ₃ H ₆ O) _m -H (R: lauryl,
n: 5, m: 3, C ₂ H ₄ O and C ₃ H ₆ O are random sequences. ) 3) Alkyl (C12-15) sodium benzene sulfonate 4) Sodium polyoxyethylene lauryl ether sulfate (EO average addition mole number 2) 5) α-Olefin (C16) sodium sulfonate 6) N- Tetradecyl-N, N, N-trimethylammonium chloride 7) Sodium lauroyloxybenzenesulfonate 8) 1-Hydroxyethylidene-1,1-diphosphonic acid

[0074]

[Table 2]

9) Sodium polyacrylate (weight average molecular weight 10,000) 10) Lauryl dimethylamine oxide 11) Sodium p-toluenesulfonate

[0076]

[Table 3]

[Brief description of drawings]

FIG. 1 is a schematic view showing an example of a two-component type container containing an agent A and an agent B.

FIG. 2 is a schematic diagram showing another example of a two-component type container containing an agent A and an agent B.

[Explanation of symbols]

(11), (12): Agent A or agent B container (13): Partition wall (14): Discharge part (1-1): Cap

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) C11D 7/22 C11D 7/22 17/08 17/08 D06L 3/02 D06L 3/02 (72) Inventor Aoyanagi Suro 1334 Minato Minato, Wakayama, Wakayama Kao Corporation Research Laboratory F-term (reference) 4H003 AB15 AB19 AB31 AC08 AC15 AC23 AE05 BA12 BA14 BA21 DA01 EA16 EB04 EB22 EB24 EB30 EB32 ED02 EE04 FA28 FA42 FA43

Claims (3)

[Claims] 1. (A1) 0.1 to 20% by mass of hydrogen peroxide
And (A2) water, and has a pH of 1.0 at 20 ° C.
PH of 20 ° C., containing A agent composed of the composition of about 7.0 to 7.0%, (B1) 3 to 20 mass% of a polymer having a monomer unit represented by the following general formula (I), and (B2) water. A two-component bleaching agent obtained by filling a container for separately holding the agent A and the agent B with the agent B having a composition of 9.0 to 13.5. [Chemical 1] Wherein, X, Y, Z is Zorezore -H, -CH _3, -C
Represents OOM, -CH ₂ COOM, an -OH, M represents H or an alkali metal. ] 2. A mixture prepared by mixing equal amounts of agent A and agent B.
The two-component bleaching agent according to claim 1, which has a pH at 0 ° C of 9.5 to 11.0. 3. The method according to claim 1 or 2, wherein the agent B further contains 0.1 to 20% by mass of an amphoteric surfactant (B3).
Dosage form bleach.