JP2016196572A - Liquid detergent for fiber product - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid detergent for fiber product excellent in detergency with containing hydrogen peroxide, having deodorant performance and good in appearance stability of liquid.SOLUTION: There is provided a liquid detergent for fiber product containing (A) component: hydrogen peroxide, (B) component: a compound represented by the general formula (b1), and (C) component: a compound having buffering function in a solution with pH 4 to 9. (b1). In the general formula, Ris a linear or branched alkyl group having 7 to 22 carbon atoms or a linear or branched alkenyl group having 7 to 22 carbon atoms, Rand Rare each independently an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group having 1 to 3 carbon atoms, and q is an integer of 1 to 5.SELECTED DRAWING: None

Description

  The present invention relates to a liquid detergent for textile products.

A liquid detergent having bleaching performance has an effect of bleaching stains and the like, and has excellent detergency. Hydrogen peroxide is known as a component that imparts bleaching performance to liquid detergents.
Patent Document 1 describes a liquid bleach composition containing hydrogen peroxide, a nonionic surfactant having a specific HLB value, and an inorganic salt (a specific alkali metal salt or alkaline earth metal salt). An amine oxide type surfactant is described as a component for thickening the composition.

  Patent Literature 2 describes an acidic liquid bleach composition containing a nonionic surfactant having a specific cloud point, a cationic surfactant having an ester bond, and an amphoteric surfactant, and a bleaching component. An example of this is hydrogen peroxide. In the acidic liquid bleach composition, the amphoteric surfactant is a component contributing to the prevention of white turbidity, and an amine oxide type surfactant is described as a preferable one.

JP 2006-160955 A JP 2005-97432 A

In recent years, liquid cleaning agents for textile products such as clothing not only clean dirt, but also remove unpleasant odors attached to textile products (deodorizing effect), because of the increasing desire for cleanliness. It is required to prevent the generation of unpleasant odor (deodorizing effect) (hereinafter, the deodorizing effect and the deodorizing effect are collectively referred to as deodorizing effect).
The present inventors have found that amine oxide type surfactants contribute to the deodorizing effect, and among these, focused on amidoamine oxide compounds.
However, it has been found that when an amidoamine oxide compound is added to a liquid detergent containing hydrogen peroxide, the appearance of the liquid detergent deteriorates due to turbidity and separation during storage of the liquid detergent.

  The present invention has been made in view of the above circumstances, and provides a liquid detergent for textiles that contains hydrogen peroxide and has excellent detergency, deodorization performance, and good liquid appearance stability. The purpose is to do.

The present invention has the following configuration.
[1] (A) component: hydrogen peroxide, (B) component: a compound represented by the following general formula (b1), and (C) component: a compound having a buffer function in a solution of pH 4-9. A liquid cleaning agent for textiles characterized by containing.

[Wherein, R ¹ represents a linear or branched alkyl group having 7 to 22 carbon atoms, or a linear or branched alkenyl group having 7 to 22 carbon atoms. R ² and R ³ are each independently an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group having 1 to 3 carbon atoms. q is an integer of 1-5. ]
[2] It is preferable to further contain an anionic surfactant (D).

  The liquid detergent for textiles of the present invention contains hydrogen peroxide and has excellent detergency, and can impart excellent deodorizing performance to textiles such as clothes after washing, after storage of the liquid detergent The appearance is also good.

<Liquid detergent for textile products>
The liquid detergent for textile products of the present invention (hereinafter sometimes simply referred to as “liquid detergent”) is a liquid composition containing the component (A), the component (B) and the component (C).
The liquid detergent of the present invention includes a liquid bleach. The liquid bleaching agent refers to a liquid cleaning agent whose main purpose is bleaching.

<(A) component>
The component (A) is hydrogen peroxide. When the liquid detergent contains hydrogen peroxide, the bleaching effect is exhibited and excellent detergency is obtained. For example, the effect of bleaching aqueous stains can be obtained.
In the liquid detergent, the content of hydrogen peroxide is preferably 0.1 to 5% by mass, more preferably 1 to 4% by mass, and 1.5 to 3% by mass with respect to the total mass of the liquid detergent. Further preferred. When the content of hydrogen peroxide is not less than the lower limit of the above range, a good bleaching effect is easily obtained. Storage stability of a liquid detergent improves more that it is below the upper limit of the said range. For example, if the liquid stability is poor, the container may expand when the container is filled with a liquid detergent and stored.

<(B) component>
Component (B) is an amidoamine oxide compound represented by the following general formula (b1), and is a semipolar surfactant. (B) A component contributes to the deodorizing effect in textiles, such as clothes after washing.
In this specification, the “semipolar surfactant” is a surfactant having a semipolar bond (a bond having a property intermediate between a nonpolar bond and a polar bond), and the semipolar surfactant is dissolved therein. This refers to a substance that exhibits a cationic property, an anionic property, or a bipolar property depending on the pH of the solution or the dispersion to be dispersed.

[Wherein, R ¹ represents a linear or branched alkyl group having 7 to 22 carbon atoms, or a linear or branched alkenyl group having 7 to 22 carbon atoms. R ² and R ³ are each independently an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group having 1 to 3 carbon atoms. q is an integer of 1-5. ]
In the formula (b1), R ¹ is preferably a linear or branched alkyl group having 7 to 22 carbon atoms, more preferably a linear or branched alkyl group having 9 to 15 carbon atoms, A linear or branched alkyl group having 11 to 13 carbon atoms is more preferable.
In the formula (b1), R ² and R ³ are each independently preferably an alkyl group having 1 to 3 carbon atoms, and more preferably a methyl group. Among them, it is more preferable that R ² and R ³ are both methyl groups.
In the formula (b1), q is preferably an integer of 1 to 3, and more preferably 3.

Examples of the compound represented by the formula (b1) include caprylic amidopropyl dimethylamine oxide, lauric amidopropyl dimethylamine oxide, myristic amidopropyl dimethylamine oxide, palmitic amidopropyl dimethylamine oxide, stearic acid amide. Examples thereof include propyldimethylamine oxide, behenic acid amidopropyldimethylamine oxide, oleic acid amidopropyldimethylamine oxide, and coconut fatty acid amidopropyldimethylamine oxide.
As the component (B), any one type may be used alone, or two or more types may be used in combination.
Among the above, as the component (B), the effects of the present invention can be easily obtained, so that lauric acid amidopropyl dimethylamine oxide, myristic acid amidopropyl dimethylamine oxide, palmitic acid amidopropyl dimethylamine oxide, coconut fatty acid amidopropyl Dimethylamine oxide is more preferable, and lauric acid amidopropyldimethylamine oxide and palm fatty acid amidopropyldimethylamine oxide are particularly preferable.

In the liquid detergent, the content of the component (B) is preferably 0.1 to 5% by mass, more preferably 0.2 to 2% by mass, and 0.5 to 1 with respect to the total mass of the liquid detergent. More preferably, 5% by mass.
When the content of the component (B) is not less than the lower limit of the above range, the deodorizing effect in the textile after washing can be sufficiently obtained. Moreover, when it is below the upper limit of the above range, the viscosity does not become too low and good usability of the liquid detergent can be obtained.
The (B) / (A) ratio, which is the mass ratio of the content of the (B) component to the content of the (A) component in the liquid detergent, is not particularly limited, but is 0.03 from the point of the deodorizing effect. The above is preferable, 0.05 or more is more preferable, 0.1 or more is further preferable, and 0.3 or more is particularly preferable. The upper limit is preferably 3 or less, more preferably 1 or less, and even more preferably 0.5 or less from the viewpoint of appearance stability after storage.

<(C) component>
(C) A component is a compound which has a buffer function in the solution of pH 4-9.
The pH value in the present invention is a value at 25 ° C. Specifically, the sample is adjusted to 25 ° C., and a value measured by a pH meter (for example, using a product name “HM-30G” manufactured by Toa DKK Corporation) is shown.
The “compound having a buffer function” means a compound having an action of reducing the change in the hydrogen ion concentration in the solution. For example, when the pH of the solution changes with time, such a change in pH does not occur. Or a compound that exhibits the effect of reducing the rate of change in pH.
Having a buffer function in a solution having a pH of 4 to 9 means having a function of holding the pH of the solution in the vicinity of Z when the pH of the solution is a value Z in the range of 4 to 9.
(C) 4-7 are preferable and, as for this pH in which a component has a buffer function, 5-6 are more preferable.

By containing the component (C) together with the component (B) (amidoamine oxide compound) in the liquid detergent containing hydrogen peroxide, it is possible to suppress a decrease in pH of the cleaning composition over time, and after storage over time Can also maintain a good appearance.
The reason is considered as follows. In the amido amion oxide compound, an amide bond is decomposed in the presence of hydrogen peroxide to produce a fatty acid. Therefore, the pH of the liquid is lowered by storage, and the liquid becomes turbid and separated, thereby deteriorating the appearance. In the present invention, by containing the component (C), a decrease in pH during storage of the liquid can be suppressed, so that deterioration of the liquid appearance due to storage can be suppressed.

(C) component should just have a buffer function in the solution of pH 4-9, for example, the thing whose acid dissociation index (pKa) in 25 degreeC is 4.5-7.5 is preferable, and 5-7 Some are more preferable, and those having 5 to 6 are more preferable. When the pKa is within the above range, after preparing the liquid detergent, the liquid stability becomes better, and the decrease in pH with time is suppressed.
Moreover, when pKa is at least the lower limit value, deterioration of appearance with time is suppressed, and when pKa is at most the upper limit value, an increase in pH with time is suppressed and the stability of hydrogen peroxide is improved. . For example, a compound having a plurality of pKas such as polyvalent acids can be used as the component (C) as long as any pKa is within the above range.

Specific examples of the component (C) include citric acid (pKa3 = 5.66 (25 ° C.)), adipic acid (pKa2 = 5.03 (25 ° C.)), and succinic acid (pKa2 = 5.24 (25 ° C.)). )), Maleic acid (pKa2 = 5.83 (25 ° C.)), malonic acid (pKa2 = 5.28 (25 ° C.)), glutaric acid (pKa2 = 5.01 (25 ° C.)), phthalic acid (pKa2 = 5.41), terephthalic acid (pKa2 = 4.82), phosphoric acid (pKa2 = 7.21), malic acid (pKa2 = 5.13), ethylenediaminetetraacetic acid (pKa3 = 2.00, pKa3 = 2.69) PKa4 = 6.13) and tartaric acid (pKa2 = 4.8).
In the description of the acid dissociation index (pKa), “pKa3” represents the negative common logarithm of the acid dissociation constant in the third-stage dissociation equilibrium. “PKa2” represents the negative common logarithm of the acid dissociation constant in the second-stage dissociation equilibrium.
Among the above, as the component (C), citric acid is preferable because it is particularly excellent in the effect of suppressing deterioration in appearance due to a decrease in pH over time.

(C) A component can be used individually by 1 type or in mixture of 2 or more types.
In the liquid cleaning agent, the content of the component (C) is preferably 0.05 to 3% by mass, more preferably 0.1 to 2% by mass, and 0.2 to 0% with respect to the total mass of the liquid cleaning agent. .5% by mass is particularly preferred.
When the content of component (C) is equal to or greater than the lower limit of the above range, a decrease in pH over time is satisfactorily suppressed, and the effect of suppressing deterioration of the liquid appearance can be sufficiently obtained. Further, when the amount is not more than the upper limit of the above range, the pH increase with time is sufficiently suppressed, and good stability of hydrogen peroxide in the liquid detergent is easily obtained.

  The ratio (B) / (C), which is the mass ratio of the content of the component (B) to the content of the component (C) in the liquid detergent, is preferably 0.2 to 30, more preferably 1 to 15. 2 to 7 are particularly preferable. If it is within the above range, sufficient stability of the liquid appearance can be obtained.

<(D) component>
The liquid detergent of the present invention may contain an anionic surfactant (component (D)) in addition to the components (A) to (C).
(D) It does not specifically limit as a component, A well-known anionic surfactant is mentioned in cleaning agents for textiles etc.
Examples of the component (D) include linear alkylbenzene sulfonic acid or a salt thereof; α-olefin sulfonate; linear or branched alkyl sulfate ester salt; alkyl ether sulfate ester salt or alkenyl ether sulfate ester salt; Α-sulfo fatty acid ester salts; fatty acid salts, alkyl ether carboxylates, polyoxyalkylene ether carboxylates, alkyl (or alkenyl) amide ether carboxylates, acylaminocarboxylates, and the like carboxylic acid type anions Surfactant: Phosphate ester type anionic surfactant such as alkyl phosphate ester salt, polyoxyalkylene alkyl phosphate ester salt, polyoxyalkylene alkylphenyl phosphate ester salt, glycerin fatty acid ester monophosphate ester salt Etc.
Examples of these salts include alkali metal salts such as sodium and potassium, alkaline earth metal salts such as magnesium, alkanolamine salts such as monoethanolamine salts and diethanolamine salts.

Among these, as the linear alkylbenzene sulfonic acid or a salt thereof, one having 8 to 16 carbon atoms in the linear alkyl group is preferable, and one having 10 to 14 carbon atoms is particularly preferable.
The α-olefin sulfonate is preferably one having 10 to 20 carbon atoms.
As the alkyl sulfate ester salt, those having 10 to 20 carbon atoms are preferable.
The alkyl ether sulfate ester salt or alkenyl ether sulfate ester salt is a polyoxyethylene alkyl ether having a linear or branched alkyl group or alkenyl group having 10 to 20 carbon atoms and having an average of 1 to 10 moles of ethylene oxide added thereto. Sulfuric acid ester salts or polyoxyethylene alkenyl ether sulfuric acid ester salts are preferred.
As the alkanesulfonate, a secondary alkanesulfonate having an alkyl group having 10 to 20 carbon atoms, preferably 14 to 17 carbon atoms is preferable.
As the α-sulfo fatty acid ester salt, an α-sulfo fatty acid ester salt having 10 to 20 carbon atoms is preferable.
As the fatty acid salt, a fatty acid salt having 10 to 20 carbon atoms is preferable.

  Among these, from the viewpoint that the viscosity of the liquid detergent can be increased and the liquid detergent can be easily adjusted to an appropriate viscosity, as the component (D), a linear alkylbenzene sulfonic acid or a salt thereof (hereinafter referred to as the component (D-1) It is preferable to use. Moreover, it is preferable to use alkanesulfonic acid salt (henceforth (D-2) component) as (D) component from the point that favorable liquid stability is obtained. Furthermore, it is preferable to use the component (D-1) and the component (D-2) in combination as the component (D) from the viewpoint that a suitable viscosity and good liquid stability are easily obtained.

As the component (D), any one type may be used alone, or two or more types may be used in combination.
The content of the component (D) is preferably 0.1 to 5% by mass, more preferably 0.1 to 3% by mass, and still more preferably 0.1 to 2% by mass with respect to the total mass of the liquid detergent. . When the content of the component (D) is not less than the lower limit of the above preferred range, the viscosity of the liquid detergent can be appropriately increased, and the liquid detergent can be adjusted to a viscosity that is easy to use (for example, 10 to 300 mPa · s). It becomes easy. When the content of the component (D) is not more than the upper limit of the above preferred range, the appearance stability of the liquid detergent is likely to be improved.

<Solvent>
The liquid detergent of the present invention preferably contains water as a solvent from the viewpoint of ease of handling during production, solubility in water when used, and the like. Although content of the water in a liquid cleaning agent is not specifically limited, 50-99 mass% is preferable with respect to the total mass of a liquid cleaning agent, 60-98 mass% is more preferable, 70-97 mass% is further more preferable. .

<Other ingredients>
The liquid detergent of this invention may contain the other component normally used for a liquid detergent other than the said (A)-(D) component.
Examples of other components include surfactants other than the components (B) and (D), bleach activators, chelating agents, radical trap agents, solvents other than water, hydrotropes, inorganic salts, boron An acid compound, a polyol compound, a fragrance | flavor, an antibacterial agent, a pH adjuster etc. are mentioned.

Examples of the other surfactant include known surfactants in detergents for textile products and the like.
Examples of the cationic surfactant include alkyl trimethyl ammonium salts, dialkyl dimethyl ammonium salts, alkyl benzyl dimethyl ammonium salts, and alkyl pyridinium salts.

  Nonionic surfactants include polyoxyalkylene alkyl ethers, alkyl (poly) glycosides, sorbitan fatty acid esters, polyoxyethylene sorbitan fatty acid esters, polyoxyethylene fatty acid esters, polyoxyethylene fatty acid ester oxyethylene propylene block polymers, fatty acid monoglycerides. Etc.

Among the above, in terms of stability in a liquid detergent containing a bleaching component such as hydrogen peroxide, ease of control of the dissolved gas amount of the liquid detergent, polyoxyalkylene alkyl ether is preferable, Polyoxyalkylene alkyl ethers represented by the following formula (I) are particularly preferred.
R-O- (AO) n-H (I)
[Wherein, R represents a linear or branched alkyl group or alkenyl group having 8 to 16 carbon atoms; AO represents an oxyalkylene group; n represents the average number of moles of AO added; The number is preferably 3-15. ]
In the above formula, in R, the alkyl group has 8 to 16 carbon atoms, preferably 10 to 14 carbon atoms, more preferably 12 to 14 carbon atoms. The carbon number of the alkenyl group is the same as the carbon number of the alkyl group. When the carbon number is 8 or more, the detergency is improved, and when the carbon number is 16 or less, the solubility is improved.
Of these, alkyl groups are preferred, and specific examples include heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, and hexadecyl, and dodecyl, tetradecyl. The group is particularly preferred.
Examples of AO include an oxyethylene group, an oxypropylene group, an oxybutylene group, and an oxypentylene group. Of these, an oxyethylene group and an oxypropylene group are preferable, and an oxyethylene group is preferable. AO may be added individually by 1 type and 2 or more types may be added.
Although n depends on the type of AO, for example, when AO is an oxyethylene group and / or oxypropylene group, n is preferably 3-15.

As the nonionic surfactant, it is preferable to use a nonionic surfactant (a) having an HLB of 14 or less and / or a nonionic surfactant (b) having an HLB of more than 14. It is preferable to use at least a nonionic surfactant (a).
10-14 are preferable, as for HLB of nonionic surfactant (a), 10.5-14 are more preferable, and 11-13 are more preferable. When the HLB of the nonionic surfactant (a) is within the above preferred range, the coating cleaning power of the liquid cleaning agent is likely to be increased.

When the nonionic surfactant (a) is used as the nonionic surfactant, the amount of the nonionic surfactant (a) used is preferably more than 0% by mass to 15% by mass with respect to the total mass of the liquid detergent, 1-10 mass% is more preferable, and 3-8 mass% is further more preferable. When the content of the nonionic surfactant (a) is in the above range, the coating cleaning power of the liquid cleaning agent can be easily increased.
Further, the content ratio of the nonionic surfactant (a) is preferably more than 0 to 90% by mass, more preferably 40 to 80% by mass, and more preferably 50 to 70% with respect to the total content of the surfactant. More preferred is mass%. When the ratio of the content of the nonionic surfactant (a) is within the above-described preferable range, the coating cleaning power and appearance stability of the liquid cleaning agent are easily increased.

When the nonionic surfactant (b) having an HLB exceeding 14 is used as the nonionic surfactant, the amount of the nonionic surfactant (b) used is more than 10% by mass to 50% with respect to the total mass of the liquid detergent. % By mass is preferable, 15 to 30% by mass is more preferable, and 20 to 25% by mass is further preferable. When the content of the nonionic surfactant (b) is in the above range, an appropriate viscosity is imparted to the liquid detergent, and the coating usability is easily enhanced.
Further, the content ratio of the nonionic surfactant (b) is preferably more than 50% by mass to 100% by mass, more preferably 60 to 95% by mass, and more preferably 70 to 90% with respect to the total content of the surfactant. More preferred is mass%. When the ratio of the content of the nonionic surfactant (b) is within the above preferable range, an appropriate viscosity is imparted to the liquid detergent, and the appearance stability is easily improved.

When only the nonionic surfactant (a) is used as the nonionic surfactant, the total amount of the surfactant in the liquid detergent may be 1 to 55 mass% with respect to the total mass of the liquid detergent. Preferably, it is 2-40 mass%, It is more preferable that it is 4-20 mass%, 6-10 mass% is further more preferable. When it is at least the lower limit of the above range, a sufficient coating cleaning power can be easily obtained. If it is not more than the upper limit value, the appearance stability at high temperatures can be easily improved.
When only the nonionic surfactant (b) is used as the nonionic surfactant, the total amount of the surfactant in the liquid detergent may be 10 to 60% by mass with respect to the total mass of the liquid detergent. Preferably, it is 15-40 mass%, More preferably, it is 20-35 mass%. When it is at least the lower limit of the above range, an appropriate viscosity is imparted to the liquid detergent, and the coating usability is easily improved. If it is not more than the upper limit value, the appearance stability at high temperatures can be easily improved.
When the nonionic surfactant (a) and the nonionic surfactant (b) are used in combination as the nonionic surfactant, the total amount of the surfactant in the liquid detergent is 10 with respect to the total mass of the liquid detergent. It is preferably ˜60% by mass, more preferably 15 to 40% by mass, further preferably 20 to 35% by mass. When it is at least the lower limit of the above range, an appropriate viscosity is imparted to the liquid detergent, and the coating usability is easily improved. If it is not more than the upper limit value, the appearance stability at high temperatures can be easily improved.

As an example, the mass of nonionic surfactants in which R in formula (I) is an alkyl group having 12 carbon atoms (C12) and R is an alkyl group having 14 carbon atoms (C14) When the ratio is C12: C14 = 7: 3 and AO is an oxyethylene group, n in the formula (I) is 5 and HLB is 10.5 and n is 6. Is 11.5, n is 7, HLB is 12.3, n is 9, HLB is 13.4, n is 12, HLB is 14.6, and n is 15 Has an HLB of 15.4.
In the present invention, "HLB of nonionic surfactant" C. Values are shown using the method by Griffin (for details, see J. Soc. Cosmetic Chemists, 1949, page 1 311). In polyoxyethylene alkyl ether, it is calculated | required by following Formula: HLB = mass fraction (%) / 5 of an oxyethylene group.

Examples of chelating agents include nitrilotriacetic acid, glycol ethylenediamine hexaacetic acid, β-alanine diacetic acid, aspartic acid diacetic acid, methylglycine diacetic acid, iminodisuccinic acid, and other aminocarboxylic acids or salts thereof; 1-hydroxyethane-1,1-diphosphone Acid, ethane-1,1-diphosphonic acid, ethane-1,1,2-triphosphonic acid, hydroxyethane-1,1,2-triphosphonic acid, ethane-1,2-dicarboxy-1,2-diphosphonic acid, Hydroxymethanephosphonic acid, ethylenediaminetetra (methylenephosphonic acid), nitrilotri (methylenephosphonic acid), 2-hydroxyethyliminodi (methylenephosphonic acid), hexamethylenediaminetetra (methylenephosphonic acid), diethylenetriaminepenta (methylenephosphonic acid), etc. Organic phos Emissions acids or salts thereof; diglycolic acid, oxalic acid, organic acids or salts thereof such as gluconic acid and the like.
When the liquid detergent of this invention contains a chelating agent, 0.1-10 mass% is preferable with respect to the total mass of a liquid detergent, and 0.2-4 mass% is more with respect to the total mass of a liquid detergent. Preferably, 0.5 to 2% by mass is more preferable.

Examples of the radical trapping agent include p-methoxyphenol and dibutylhydroxytoluene.
When the liquid cleaning agent of the present invention contains a radical trapping agent, the content of the radical trapping agent is preferably 0.01 to 1% by mass, and 0.05 to 0.5% with respect to the total mass of the liquid cleaning agent. % By mass is more preferable, and 0.1 to 0.3% by mass is more preferable.
Examples of solvents other than water include diethylene glycol monophenyl ether, diethylene glycol monobutyl ether, propylene glycol, and ethanol.
When the liquid detergent of the present invention contains a solvent, the content of the solvent is preferably from 0.1 to 10% by mass, more preferably from 0.2 to 5% by mass, based on the total mass of the liquid detergent. 0.4-2 mass% is further more preferable.

Examples of the pH adjuster include hydrochloric acid, sulfuric acid, sodium hydroxide, potassium hydroxide, monoethanolamine, diethanolamine, triethanolamine, ammonia and the like.
4-9 are preferable, as for pH at 25 degreeC of the liquid cleaning agent of this invention, 4-7 are more preferable, and 5-6 are more preferable. Within the above range, the appearance stability of the liquid is likely to be improved.

The liquid detergent of the present invention has a viscosity at 25 ° C. of preferably about 10 to 300 mPa · s, and more preferably about 25 to 150 mPa · s.
If the viscosity of the liquid detergent is within the above preferred range, the liquid detergent can be easily measured with a measuring cap or the like. Further, when the liquid cleaning agent is directly applied to the object to be cleaned, the liquid cleaning agent can be easily applied to the object to be cleaned.
The viscosity at 25 ° C. of the liquid cleaning agent in the present invention is a value measured using a B-type viscometer (manufactured by TOKIMEC) after adjusting the sample to 25 ° C. (an example of measurement conditions: rotor No. 2. Measure the viscosity after 10 revolutions at 30 rpm.

  The liquid cleaning agent of the present invention, for example, dissolves the above-mentioned component (A), component (B), component (C) and optional components as required in water as a solvent, and uses a pH adjuster. It can manufacture by adjusting to predetermined | prescribed pH.

The liquid cleaning agent of this invention can be accommodated in the container generally used. Such containers include, for example, nozzle-type containers or inner-plug-type containers with measuring caps, squeeze containers or pump containers with automatic measuring mechanisms or simple measuring mechanisms, trigger containers or squeeze for spraying liquids or applying them in the form of bubbles. Examples include containers, application containers having an application surface for applying liquid, and refill containers (pouches, thin bottles, replacement bottles, etc.).

The method of using the liquid cleaning agent of the present invention includes, for example, a method in which the liquid cleaning agent is poured into water together with the object to be cleaned at the time of washing, and a cleaning agent aqueous solution prepared by dissolving the liquid cleaning agent in water in advance. The method of immersing a thing etc. is mentioned. Alternatively, the liquid cleaning agent may be applied directly to the article to be washed and left for a certain period of time, and then normal washing may be performed (application cleaning).
Although it does not specifically limit as a to-be-washed object which is a washing | cleaning object of the liquid cleaning agent of this invention, For example, clothing, a fabric, a curtain, a sheet | seat etc. are mentioned.

Hereinafter, the present invention will be described in more detail using examples, but the present invention is not limited to these examples. In this example, “%” indicates “% by mass” unless otherwise specified.
The raw materials used in this example are as follows.

<(A) component>
Hydrogen peroxide: 35% industrial hydrogen peroxide, manufactured by Mitsubishi Gas Chemical Co., Ltd.
<(B) component>
(B) -1: Lauric acid amidopropyldimethylamine oxide (APAX), manufactured by Clariant, trade name “GENAMINOX AP”; R ¹ in the general formula (b1) = a linear alkyl group having 11 carbon atoms, R ² = Methyl group, R ³ = methyl group, q = 3.
<(C) component>
Citric acid: Reagent "Citric acid" manufactured by Kanto Chemical Co., Inc.
<(D) component: anionic surfactant>
(D) -1: Linear alkyl (C10-14) benzenesulfonic acid (LAS-H): Raipon LH-200 (trade name, pure content of LAS-H = 96 mass%, manufactured by Lion Corporation). During the production of the liquid detergent, it is neutralized with sodium hydroxide, which is a pH adjuster, to form a sodium salt.
(D) -2: Sodium secondary alkane sulfonate, manufactured by Clariant Japan, trade name “SAS30”.

<Other ingredients>
Nonionic surfactant a: a mixture of an alcohol having 12 carbons (C12OH) and an alcohol having 14 carbons (C14OH) (mass ratio C12OH / C14OH = 75/25) with an average of 6 moles of ethylene oxide added, Product name “Leox CL-60” manufactured by Lion Corporation. (HLB = 11.5)
Nonionic surfactant b: a mixture of alcohol having 12 carbon atoms (C12OH) and alcohol having 14 carbon atoms (C14OH) (mass ratio C12OH / C14OH = 75/25) with an average of 15 moles of ethylene oxide added, Product name “LMAO-90” manufactured by Lion Chemical Co., Ltd. (HLB = 15.4)
Chelating agent: 1-hydroxyethane-1,1-diphosphonic acid (HEDP), manufactured by Rhodia, trade name “BRIQUEST ADPA”.
Radical trapping agent: p-methoxyphenol, manufactured by Kawaguchi Chemical Industry Co., Ltd., trade name “MQ-F”.
pH adjuster: sodium hydroxide (manufactured by Tsurumi Soda Co., Ltd.).
Solvent: Diethylene glycol monophenyl ether, manufactured by Nippon Emulsifier Co., Ltd., trade name “PhDG (90)”.
purified water.

[Manufacture of liquid detergents for textile products]
Table 1 shows the composition (formulation component, content (% by mass)) of the liquid cleaning agent in each example. In the table, when there is a blank blending component, the blending component is not blended. In the table, the content of the compounding component indicates a pure equivalent amount.
The “appropriate amount” indicating the content of the pH adjusting agent is the total amount of the pH adjusting agent (sodium hydroxide) added to adjust the pH (25 ° C.) of the liquid cleaning agent to the pH value in the table. Indicates.
“Balance” indicating the content of purified water means the balance added so that the total amount (mass%) of all the ingredients contained in the liquid detergent is 100 mass%.

  In the table, “(B) / (C) ratio” indicates the ratio (mass ratio) of the component (B) to the component (C) contained in the liquid detergent. The “total surfactant” in Table 1 is the total of component (B), component (D), and nonionic surfactant.

(Examples 1-12 and Comparative Examples 1-3)
According to the composition shown in Table 1, component (A), component (B), component (C), and optional components (excluding water and a pH adjuster) were added to water and mixed. This was adjusted to the pH value in the table with a pH adjusting agent to obtain a liquid cleaning agent of each example.
Moreover, except having not added any of (A)-(C) component to water, it carried out similarly to the above, and obtained the liquid cleaning agent of Comparative Examples 1-3.
About the liquid detergent of each example, the external appearance stability, the deodorizing effect, and the tea stain stain cleaning power were evaluated as follows. The evaluation results are shown in Table 1.
The viscosity at 25 ° C. of the liquid cleaning agent in each example was in the range of 25 to 150 mPa · s.

<Appearance stability evaluation method>
100 mL of the liquid cleaning agent of each example was collected in a transparent glass bottle (wide-mouth standard bottle PS-No. 11), the lid was closed, and the sample was used as a sample. The measurement sample was allowed to stand for 3 weeks in a thermostat set at 60 ° C., and then the appearance of each sample was visually observed, and the appearance stability was evaluated according to the following criteria. △ and ○ were accepted.
(Evaluation criteria)
○: Transparent.
Δ: Slight turbidity is observed.
X: Cloudiness or separation is observed.

<Evaluation method of deodorizing effect>
About 100 g of cotton towel used for one week at an actual home and about 700 g of cotton skin shirt worn by men in their 20s to 30s (hereinafter referred to as “clothing”). Then, it was put into a fully automatic electric washing machine (JW-Z23A manufactured by Haier). Next, 10 mL of the liquid detergent of each example was put into the washing machine, and washing, rinsing, and dehydration were performed in the standard course of the washing machine to wash the clothes. The clothes after washing were dried all day and night. Five panelists, including men and women, scored the “unpleasant smell” of clothes after drying according to the following six criteria. The average value of the five scoring results was classified into the following evaluation criteria to evaluate the deodorizing effect on clothing. △, ○, and ◎ were accepted.
(Judgment criteria)
0 point: odorless.
1 point: The smell that can finally be detected.
2 points: Smell that shows what kind of smell it is.
3 points: A smell that can be easily detected.
4 points: Strong odor.
5 points: Strong smell.
(Evaluation criteria)
A: 0 or more and less than 1.5 points.
○: 1.5 points or more and less than 2.5 points.
Δ: 2.5 or more and less than 3
X: 3 points or more and 5 points or less.

<Evaluation method of water stain stain (tea stain stain) detergency>
Add 5 tea bags (Mitsui Norin Co., Ltd., “Nitto Tea Earl Gray”) to 1L of boiling tap water (3 ° DH hard water), and after gently stirring for 5 minutes, take out the tea bag and place it in a 30cm square. One piece of cloth (cotton broad # 100) of the size was immersed and allowed to stand for 15 minutes. Subsequently, the cloth was taken out and air-dried by hanging and drying, cut into a size of 3 cm square, and used as a contaminated cloth.
On a plastic petri dish (diameter: 9 cm), spread the 5 contaminated cloths so that they do not overlap, and add 0.3 mL of the liquid detergent of each example to each contaminated cloth, without a lid, indoors. Left for 10 minutes. Next, using a washing tester (Terg-O-Tometer), in 900 mL of tap water (15 ° C., 4 ° DH hard water), the contaminated cloth after standing and a liquid detergent for clothing (manufactured by Lion, “NANOX”) 0.6 g and 30 g of charge cloth (cotton knitted cloth) were added and washed at 120 rpm for 10 minutes. Then, after dehydrating until the weight of the detergent solution contained in the contaminated cloth becomes the same weight as the contaminated cloth, rinsing with 900 mL of tap water (15 ° C., 4 ° DH hard water) for 3 minutes is performed once. And finally dehydrated. The dehydrated contaminated fabric was then dried with an iron.
The reflectance was measured with a colorimetric color difference meter (“SE2000” manufactured by Nippon Denshoku Co., Ltd.) for each of the uncleaned and 5 contaminated cloths, and the cleaning rate (%) was calculated from the following formula (1). did.
Washing rate (%) = (reflectance of contaminated cloth before washing−reflectance of contaminated cloth after washing) / (reflectance of contaminated cloth before washing−reflectance of uncontaminated cloth (white cloth)) × 100・ (1)
In formula (1), an uncontaminated cloth is a cloth (cotton broad # 100) which is not soaked in tea liquid.
The average value of the cleaning rate of the five soiled cloths was defined as the cleaning power, and the cleaning power against aqueous stains was evaluated according to the following evaluation criteria.
(Evaluation criteria)
○: 30% or more Δ: 20% or more and less than 30% ×: less than 20%

From the results shown in Table 1, it was confirmed that the liquid detergents of Examples 1 to 12 to which the present invention was applied had a good detergency against aqueous stain stains and a good deodorizing effect was obtained. Furthermore, the appearance stability during storage of the liquid detergent was also good.
The liquid detergent (Comparative Example 1) containing no component (A) was inferior in water stain stain cleaning power.
The liquid detergent (Comparative Example 2) containing no component (B) was inferior in deodorizing effect.
The liquid detergent (Comparative Example 3) containing no component (C) was poor in appearance stability.

Claims (2)

(A) component: hydrogen peroxide,
(B) component: the compound represented by the following general formula (b1),
(C) Component: The liquid detergent for textiles characterized by including the compound which has a buffer function in the solution of pH 4-9.

[Wherein, R ¹ represents a linear or branched alkyl group having 7 to 22 carbon atoms, or a linear or branched alkenyl group having 7 to 22 carbon atoms. R ² and R ³ are each independently an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group having 1 to 3 carbon atoms. q is an integer of 1-5. ]   The liquid detergent for textiles according to claim 1, further comprising an anionic surfactant (D).