JP6093691B2 - Liquid detergent for clothing - Google Patents

Description

The present invention relates to a liquid cleaning agent for clothing.
This application claims priority on February 25, 2011 based on Japanese Patent Application No. 2011-040061 for which it applied to Japan, and uses the content here.

Various liquid detergents for clothing, body use, kitchen use and the like have been proposed with various functions.
For example, as a washing agent for the body excellent in foam quality and storage stability, an anionic surfactant 5 to 70% by mass, a nonionic surfactant 0.05 to 14% by mass, and myristyl alcohol 1.6 to 14% by mass Has been proposed (see Patent Document 1).
Moreover, 5-50 mass% of anionic surfactants and nonionic surfactants 1 to 1 are contained as detergents for kitchens containing surfactants at high concentrations and suppressing deterioration of odor after storage and turbidity of liquids. A liquid detergent composition containing 30% by mass and 0.05 to 0.5% by mass of a saturated alcohol having 8 to 16 carbon atoms has been proposed (see Patent Document 2).

On the other hand, liquid detergents for clothing have recently been in demand because there is no concern about undissolved residue and it can be applied and washed directly on areas where dirt is likely to adhere, such as collars and cuffs.
For liquid detergents for clothing, a composition with a relatively low viscosity combining nonionic surfactant and protease enzyme is generally used. There are also problems such as poor usability, such as poor liquid drainage when weighing, and liquid that tends to flow before the liquid soaks sufficiently into clothing when liquid detergent is applied directly to clothing stains. there were.

  In order to solve this problem, a liquid detergent composition for clothing containing a nonionic surfactant, a cross-linked carboxyvinyl polymer, and a cationic surfactant has been proposed as a liquid detergent having a viscosity suitable for clothes. (See Patent Document 3).

JP 2008-31468 A JP 2002-332499 A JP 2007-297510 A

However, in the liquid detergent composition for clothing described in Patent Document 3, the applicability and the detergency when applied directly to the dirt of clothing are not examined. Moreover, it may isolate | separate or become cloudy and was not fully satisfying storage stability.
Moreover, even when a liquid detergent for clothing was prepared with the same composition as the detergents described in Patent Documents 1 and 2, the usability such as applicability and liquid breakage and detergency could not be satisfied at the same time. .

  The present invention has been made in view of the above circumstances, has excellent detergency, has an appropriate viscosity, is excellent in applicability to clothes, has good liquid drainage from the container, and is stable in storage. An object is to provide an excellent liquid detergent for clothing.

  The present invention has the following aspects.

1st aspect of this invention contains component (A)-(C),
Component (A) is at least one selected from the group consisting of component (A1) and component (A2),
Component (A1) is a polyoxyethylene alkyl ether sulfate represented by the general formula (1),
Component (A2) is an alkylbenzene sulfonate represented by the general formula (4),
Component (B) is at least one selected from the group consisting of component (B1) and component (B2),
Component (B1) is component (B1a) and component (B1b),
Component (B1a) is a polyoxyethylene alkyl ether represented by the general formula (2),
Component (B1b) is a higher alcohol represented by the general formula (3),
Component (B2) is an alpha sulfo fatty acid alkyl ester salt represented by the general formula (5),
Component (C) is a water-soluble inorganic salt or an organic acid salt having 1 to 6 carbon atoms (provided that the salt is at least one selected from the group consisting of sodium, potassium and magnesium), and the content thereof Is 0.5 to 8.0 mass%,
A liquid detergent for clothing, wherein the total content of the components (A1), (B1a), (A2) and (B2) is 5 to 25%.

[Wherein, R ¹ represents an alkyl group or alkenyl group having 8 to 18 carbon atoms, X represents an alkali metal, an alkaline earth metal, ammonium or ethanolamine, and m represents the average number of moles of ethylene oxide added. ~ 3. ]

［式中、Ｒ^４は炭素数８〜２０の直鎖又は分岐鎖のアルキル基であり、Ｃ_６Ｈ_４はベンゼン環から水素原子を２個除いてなる２価の基であり、Ｘ_１はアルカリ金属、アルカリ土類金属、アンモニウム又はエタノールアミンである。］

[Wherein R ⁴ is a linear or branched alkyl group having 8 to 20 carbon atoms, C ₆ H ₄ is a divalent group obtained by removing two hydrogen atoms from a benzene ring, and X ₁ is Alkali metal, alkaline earth metal, ammonium or ethanolamine. ]

[Wherein, R ² represents a linear or branched alkyl group or alkenyl group having 8 to 18 carbon atoms, and n represents an average addition mole number of ethylene oxide, which is 7 to 20. ]

[Wherein, R ³ represents a linear or branched alkyl group having 8 to 18 carbon atoms. ]

[Wherein, R ⁵ represents a linear alkyl group or alkenyl group having 10 to 16 carbon atoms. R ⁶ is a linear or branched alkyl group having 1 to 3 carbon atoms, and X ₂ is an alkali metal, an alkaline earth metal, ammonium or ethanolamine. ]

In the second aspect of the present invention, the component (B) is the component (B1), and the content of the component (B1b) is 0.8 to 3.0% by mass. The liquid cleaning agent for clothing described in 1.

  In the third aspect of the present invention, the mass ratio of the component (A) and the component (B) is component (A): component (B) = 40: 60 to 95: 5, and the content of the component (C) The liquid cleaning agent for clothing according to the second aspect, wherein the amount is 1.0 to 5.0% by mass.

  A fourth aspect of the present invention is the liquid cleaning agent for clothing according to the second or third aspect, wherein the component (A) is the component (A1).

  In a fifth aspect of the present invention, the component (C) is at least one selected from the group consisting of sodium sulfate, sodium carbonate, sodium chloride, potassium chloride, potassium sulfate, sodium citrate, and magnesium sulfate. It is the liquid cleaning agent for clothes as described in any one of the said 1st-4th aspect.

  A sixth aspect of the present invention is the liquid detergent for clothing according to the first aspect, wherein the component (B) is the component (B2).

  In a seventh aspect of the present invention, the mass ratio of the component (A) and the component (B2) is component (A): component (B2) = 60: 40 to 95: 5, and the content of the component (C) The liquid detergent for clothing according to the sixth aspect, wherein the amount is 1.0 to 3.0% by mass.

  The 8th aspect of this invention is the liquid cleaning agent for clothing as described in the said 6th or 7th aspect whose said component (A) is the said component (A2).

  In a ninth aspect of the present invention, the component (C) is at least one selected from the group consisting of sodium sulfate, sodium carbonate, sodium chloride, potassium chloride, potassium sulfate, sodium citrate, and magnesium sulfate. It is the liquid cleaning agent for clothes as described in any one of the said 6th-8th aspect.

  According to the present invention, there is provided a liquid detergent for clothing that has excellent detergency, has an appropriate viscosity, is excellent in applicability to clothes, has good liquid drainage from a container, and has excellent storage stability. Can be provided.

Hereinafter, the present invention will be described in detail.
The liquid detergent for clothing of the present invention (hereinafter referred to as “liquid detergent”) contains the following components (A) to (C).

<Component (A)>
Component (A) is at least one selected from the group consisting of component (A1) and component (A2).
The component (A1) is a polyoxyethylene alkyl ether sulfate represented by the general formula (1).
The component (A2) is an alkylbenzene sulfonate represented by the general formula (4).
Component (A) is a component that imparts detergency to the liquid detergent. By containing component (A), the detergency of protein stains in particular is improved. This detergency against protein stains is particularly effective when applied directly to clothing stains (coating and washing).

In the general formula (1), R ¹ is an alkyl group having 8 to 18 carbon atoms or an alkenyl group having 8 to 18 carbon atoms. If the alkyl group or alkenyl group has 8 or more carbon atoms, the function as a surfactant can be sufficiently exerted, and an excellent detergency can be imparted to the liquid detergent. On the other hand, if the number of carbon atoms is 18 or less, the component (A1) can maintain a liquid state, so that the liquid stability of the liquid detergent can be maintained. In R ¹ , the number of carbon atoms of the alkyl group and alkenyl group is preferably 10 to 16 from the viewpoint of improving detergency.
The alkyl group and alkenyl group may each be linear or branched.

Specifically, R ¹ is preferably, for example, a lauryl group or a myristyl group, and more preferably a lauryl group.

  X is an alkali metal, alkaline earth metal, ammonium or ethanolamine.

  Specifically, the alkali metal represented by X is preferably sodium or potassium, and more preferably sodium.

  Specific examples of the alkaline earth metal represented by X include magnesium and the like.

  X is preferably sodium.

  m shows the average addition mole number (average EO addition mole number) of ethylene oxide, and is 1-3. If m is 1 or more, the detergency improves. On the other hand, if m is 3 or less, the viscosity of the liquid detergent is unlikely to be low, and it is easy to apply to clothes. m is preferably 1 to 2.

Examples of such component (A1) include polyoxyethylene (1) sodium lauryl ether sulfate, polyoxyethylene (2) sodium lauryl ether sulfate, polyoxyethylene (1) sodium myristyl ether sulfate, and polyoxyethylene (2). Examples include sodium myristyl ether sulfate. Among these, polyoxyethylene (2) sodium lauryl ether sulfate and polyoxyethylene (2) sodium myristyl ether sulfate are preferable. The numerical value in parentheses after “ethylene” is the average number of EO addition moles.
These components (A1) may be used individually by 1 type, and may use 2 or more types together.

In the general formula ^(4), R 4 is a straight-chain or branched-chain alkyl group having 8 to 20 carbon atoms. If the carbon number of the alkyl group is 8 or more and 20 or less, excellent detergency can be imparted.
The alkyl group may be linear or branched.

The R ^4, specifically, for example, 8 to 18 preferably 10 to 14 is more preferable.

X ₁ is an alkali metal, alkaline earth metal, ammonium or ethanolamine.

The alkali metal X ₁ represents, in particular, sodium, potassium are preferred, sodium is more preferable.

The alkaline earth metal X ₁ represents, magnesium.

X ₁ is preferably sodium.

  Examples of such component (A2) include sodium dodecylbenzenesulfonate.

  As for content of a component (A) (component (A1) and / or component (A2)), 1-24 mass% is preferable.

<Component (B)>
The component (B) is at least one selected from the group consisting of the component (B1) and the component (B2).
The component (B1) is a component (B1a) and a component (B1b).
Component (B1a) is a polyoxyethylene alkyl ether represented by the general formula (2),
The component (B1b) is a higher alcohol represented by the general formula (3).
The component (B2) is an alpha sulfo fatty acid alkyl ester salt represented by the general formula (5).
The component (B1a) is a component that imparts detergency to the liquid detergent, and by containing the component (B1a), particularly the detergency against sebum stains is improved. This detergency against sebum is particularly effective in the case of application cleaning.

In the general formula (2), R ² is an alkyl group having 8 to 18 carbon atoms or an alkenyl group having 8 to 18 carbon atoms. If the alkyl group or alkenyl group has 8 or more carbon atoms, the function as a surfactant can be sufficiently exerted, and an excellent detergency can be imparted to the liquid detergent. On the other hand, if the number of carbon atoms is 18 or less, the component (B1a) can maintain a liquid state, so that the liquid stability of the liquid detergent can be maintained. In R ^2, an alkyl group, the carbon number of the alkenyl group from the viewpoint of detergency improvement, respectively 10 to 16 are preferred.
The alkyl group and alkenyl group may each be linear or branched.

Specific examples of the alkyl group having 8 to 18 carbon atoms represented by R ² include a linear lauryl group, a cetyl group, a stearyl group, a branched alkyl group having 12 carbon atoms, and an alkyl group having 14 carbon atoms. Can be mentioned.

  n shows the average addition mole number of ethylene oxide (EO), and is 7-20. If n is 7 or more, the detergency improves. On the other hand, if n is 20 or less, the viscosity of the liquid detergent is unlikely to be low, and it is easy to apply to clothes. n is preferably from 10 to 20.

Examples of such component (B1a) include polyoxyethylene (16) lauryl ether (for example, “Emulgen 116” manufactured by Kao Corporation) and polyoxyethylene (10) cetyl ether (for example, “BC manufactured by Nikko Chemicals Corporation). -10TX "), polyoxyethylene (15) cetyl ether (for example," BC-15TX "manufactured by Nikko Chemicals Corporation), polyoxyethylene (20) stearyl ether (for example," BS-20 "manufactured by Nikko Chemicals Corporation) And polyoxyethylene (15) alkyl (sec-C12-C14) ether (for example, “Softanol 150” manufactured by Nippon Shokubai Co., Ltd.). The numerical value in parentheses after “ethylene” is the average added mole number of EO.
In addition to the above-mentioned components (B1a), for example, “Ecolat KB-15” having an EO average addition mole number of 15 of lauryl alcohol, “Ecolat KB-7” having an EO average addition mole number of 7 (hereinafter, Ecogreen). Co., Ltd.), “Softar 90” (above, made by Nippon Shokubai Co., Ltd.) having an EO average addition mole number 9 of a linear secondary alcohol having 12 to 14 alkyl groups and C12 obtained by trimerizing butene Commercially available products such as “Lutensol TO7” (above, manufactured by BASF) having an EO average addition mole number of 7 of branched type C13 alcohol obtained by subjecting alkene to oxo method can be used.
Among these, “Ecolat KB-15” is preferable.
These components (B1a) may be used individually by 1 type, and may use 2 or more types together.

  The component (B1b) is a component that imparts an appropriate viscosity to the liquid detergent.

In the general formula (3), R ³ is an alkyl group having 8 to 18 carbon atoms. When the carbon number of the alkyl group is less than 8, the viscosity of the liquid cleaning agent becomes low, and when applied to the dirt of clothing, the liquid detergent tends to spread to other parts than the dirt. On the other hand, when the number of carbon atoms exceeds 18, the liquid detergent is easily separated, and the storage stability is lowered. In R ³ , the number of carbon atoms of the alkyl group is preferably 10 to 14 from the viewpoint of easy adjustment to an appropriate viscosity and improvement in detergency.
The alkyl group may be linear or branched.

Examples of such component (B1b) include capryl alcohol, decyl alcohol, lauryl alcohol, myristyl alcohol, cetyl alcohol, stearyl alcohol, palmitoleyl alcohol, oleyl alcohol, and isostearyl alcohol. Among these, decyl alcohol, lauryl alcohol, and myristyl alcohol are preferable.
These components (B1b) may be used individually by 1 type, and may use 2 or more types together.

  Content of a component (B1b) is 0.8-3.0 mass% in 100 mass% of liquid cleaning agents, and 1.0-2.5 mass% is preferable. When the content is less than 0.8% by mass, the viscosity of the liquid detergent becomes low, and the liquid detergent tends to spread to other parts than the dirt when applied to the dirt on clothes. On the other hand, when the content exceeds 3.0% by mass, the liquid detergent is easily separated, storage stability is lowered, and the viscosity of the liquid detergent is also lowered.

  The component (B2) is a component that imparts cleaning power to the liquid cleaning agent, and the cleaning power against sebum dirt is improved by containing the component (B2). Further, when the component (A) and the component (C) are combined, the growth of the surfactant aggregate is promoted, and an appropriate viscosity is imparted to the liquid detergent composition.

In the general formula (5), R ⁵ is a linear alkyl group or alkenyl group having 10 to 16 carbon atoms. When the carbon number of the alkyl group or alkenyl group is 10 or more and 16 or less, the growth of the surfactant aggregate formed with the A component is promoted by the C component, so that it can have an appropriate viscosity. In R ⁵ , the number of carbon atoms of the alkyl group and alkenyl group is more preferably 14 to 16 from the viewpoint of imparting appropriate viscosity.
Further, in the above general formula (5), R ⁶ is a linear or branched alkyl group having 1 to 3 carbon atoms. Specific examples of R ⁶ include a methyl group, an ethyl group, a propyl group, and an isopropyl group. Among these, a methyl group, an ethyl group, and a propyl group are preferable from the viewpoint of liquidity and cost, A methyl group is more preferred.
X ₂ is an alkali metal, alkaline earth metal, ammonium or ethanolamine. X ₂ is preferably sodium, potassium or ethanolamine, more preferably sodium or potassium, and particularly preferably sodium.

Examples of such a component (B2) include lauric acid methyl ester salt, myristic acid methyl ester salt, palmitic acid methyl ester salt, stearic acid methyl ester salt, or a mixture thereof. Among these, myristic acid A methyl ester salt, a palmitic acid methyl ester salt, a stearic acid methyl ester salt, or a mixture thereof is preferred, and a palmitic acid methyl ester salt, a stearic acid methyl ester salt, or a mixture thereof is more preferred.
These components (B2) may be used individually by 1 type, and may use 2 or more types together.

1-10 mass% is preferable and, as for content of a component (B2), 1-5 mass% is more preferable.
When the content of the component (B2) is 1% by mass or less, the detergency is not sufficiently exhibited, and the thickening action is hardly exhibited. On the other hand, when the blending amount of the component (B2) is 10% by mass or more, the component (B2) that does not contribute to the formation of aggregates may precipitate or an extremely thickening effect may be brought about.

<Ingredient (C)>
Component (C) is a water-soluble inorganic salt or an organic acid salt having 6 or less carbon atoms (provided that the salt is at least one selected from the group consisting of sodium, potassium and magnesium).
When the component (B1a), the component (B1b) and the component (C) are further added to the surfactant solution containing the component (A), the surfactant solution has a structural viscosity. Further, when the component (B2) and the component (C) are added to the surfactant solution containing the component (A), the surfactant solution also has a structural viscosity. That is, the present invention relates to a surfactant solution containing component (A), wherein component (C) cooperates with component (B1a) and component (B1b), or cooperates with component (B2). Thus, it has been found that structural viscosity is imparted to the surfactant solution containing the component (A). Therefore, the coexistence system of the component (A), the component (B) and the component (C) has structural viscosity.
The term “having structural viscosity” as used herein means that the viscosity is increased in a stationary state or a low shear rate region, and the viscosity is increased when a shear rate is further applied, such as when applied to clothing. Means reduced rheological behavior. The reason is not clear, but due to the coexistence of component (A), component (B), and component (C), the association state of the surfactant dissolved in the system changes from spherical micelles to string-like micelles. The essence of this phenomenon is thought to be intertwined in each other.
That is, since the composition in the container is in a state close to a stationary state, the entanglement based on the string-like micelles is randomly formed, showing the appearance of a thick liquid composition. Since the shear rate is applied when taking out, it becomes easier to get out of the container. Further, when the detergent composition is directly applied to clothing, the shear rate further increases, so that this entanglement can be solved or the string micelles are arranged in parallel. It is considered that the viscosity decreases, the liquid detergent spreads appropriately on the cloth, and dripping does not easily occur.
Moreover, although a reason is not clear, when a liquid detergent expresses the said structural viscosity, a cleaning power improves a little.

Examples of the component (C) include sodium, potassium, magnesium sulfate, carbonate, chloride, citrate and the like. In particular, from the group consisting of sodium sulfate, sodium carbonate, sodium chloride, potassium chloride, potassium sulfate, sodium citrate, and magnesium sulfate in that the viscosity of the liquid detergent can be increased moderately and storage stability becomes excellent. At least one selected is preferred.
In the present invention, “water-soluble” means that 5% by mass or more is dissolved in water at 25 ° C. on a mass basis.

  Content of a component (C) is 0.5-8.0 mass% in 100 mass% of liquid cleaning agents, and 1.0-5.0 mass% is preferable. When the content is less than 0.5% by mass, the effect of structural viscosity cannot be sufficiently obtained, and the liquid detergent tends to spread to other parts than the dirt when applied to the dirt of clothing. On the other hand, when the content exceeds 8.0% by mass, the liquid detergent is easily separated, storage stability is lowered, and the viscosity of the liquid detergent is also lowered. In particular, in the combination of A and B1, when the content of the component (C) is 1.0 to 5.0% by mass, a liquid cleaning agent that is superior in terms of running out of liquid, detergency, and storage stability can be obtained. Moreover, in the combination of A and B2, when the content of the component (C) is 1.0 to 3.0% by mass, a liquid cleaning agent that is superior in terms of running out of liquid, detergency, and storage stability can be obtained.

<Optional component>
In addition to the components (A) to (C), the liquid cleaning agent of the present invention may optionally contain other components within a range that does not impair the effects of the present invention.
Other components include surfactants other than component (A) and component (C), enzymes, texture improvers, pH adjusters, preservatives, hydrotropes, fluorescent agents, dye transfer inhibitors, pearl agents, Antioxidants, soil release agents, colorants, flavoring agents, emulsifying agents and the like can be mentioned.
(enzyme)
Examples of the enzyme include savinase, alcalase, evalase, cannase, esperase, licanase (trade name) manufactured by Novozymes (trade name); API21 (trade name) made by the company; Maxenase, Maxcal, Purecal, Maxapem, Properase (above, trade name) made by GENENCOR (Genocore); manufactured by Kao Corporation KAP (trade name); Proteases K-14 and K-16 (above, trade name) described in JP-A-5-25492; Termam made by Novozymes l), Duramil, Steinzyme, Promozyme 200L (trade name); Maxamyl (trade name) manufactured by Genencor Corporation; Pullulanase Amano manufactured by Amano Pharmaceutical Co., Ltd. (trade name) ), DB-250 manufactured by Seikagaku Corporation (trade name, pullulanase derived from Aerobacter aerogenes ATCC 9621: Crude or crystallized product); Lipolase, Lipolase Ultra, Lipex, Lipex 100L from Novozymes (Products above) Name); Commercially available lipase (lipase preparation) such as Liposome (trade name) manufactured by Showa Denko KK
For example, in the case of containing Everase as the enzyme, the content is preferably 0.1 to 3% by mass in 100% by mass of the liquid detergent composition. If the content of the enzyme is 0.1% by mass or more, the detergency against various types of dirt (especially the detergency against oily dirt such as sebum dirt) is improved. Moreover, if the content of the enzyme is 3% by mass or less, it is easy to obtain a sufficient detergency against various stains, which is economically advantageous.
(Texture improver)
As the texture improver, CF1188HV, SH3748, SH3794, SH3772M, SH3775M, SF8410, SH8700, BY22-008, BY22-012, SILWET L-7001, SILWET L-7002, SILWET L-762 manufactured by Toray Dow Corning Co., Ltd. , SILWET L-7604, SILWET FZ-2104, SILWET FZ-2120, SILWET FZ-2161, SILWET FZ-2162, SILWET FZ-2164, SILWET FZ-2171, ABN SILWET FZ-F1F09-IL, AB1-009-01, AB1-009-01 F1-009-02, ABN SILWET FZ-F1-009-03, ABN SILWET FZ-F1-009-05, ABN SI LWET FZ-F1-009-09ABN SILWET FZ-F1-009-11, ABN SILWET FZ-F1-009-13, ABN SILWET FZ-F1-009-54, ABN SILWET FZ-22-22 X-20-8010B, KF352A, KF6008, KF615A, KF6012, KF6016, KF6017 (above, trade name) manufactured by Shin-Etsu Chemical Co., Ltd .; TSF4450, TSF4452, TSF4445 (above, trade name) made by GE Toshiba Silicone Co., Ltd. And polyether-modified silicone.
The content of the polyether-modified silicone is preferably 0.1 to 3% by mass in the liquid detergent composition.
(PH adjuster)
Examples of the pH adjuster include inorganic acids (for example, hydrochloric acid, sulfuric acid, phosphoric acid, etc.), organic acids (for example, polyvalent carboxylic acids, hydroxycarboxylic acids, etc.), sodium hydroxide, potassium hydroxide, alkanolamine, ammonia and the like. . Among these, sulfuric acid, sodium hydroxide, potassium hydroxide, and alkanolamine are preferable from the viewpoint of the temporal stability of the liquid detergent composition.
(Hydrotrope agent)
Examples of the hydrotrope include p-toluenesulfonic acid, benzoate (also has an effect as a preservative), urea, and the like.
The content of the hydrotrope agent is preferably 0.01 to 15% by mass in 100% by mass of the liquid detergent composition.
(Preservative)
Examples of the preservative include Caisson CG (trade name) manufactured by Rohm & Haas, Proxel manufactured by Arch Chemicals, Inc, Actiside manufactured by THOR GmbH, and the like. The content of the preservative is preferably 0.001 to 1% by mass in 100% by mass of the liquid detergent composition.
(Coloring agent)
As the colorant, general-purpose dyes and pigments such as Acid Red 138, Polar Red RLS, Acid Yellow 203, Acid Blue 9, Blue No. 1, Blue No. 205, Green No. 3, Turquoise P-GR (above, trade name) and the like Etc.
It is preferable that content of a coloring agent is 0.00005-0.005 mass% in a liquid cleaning composition.
(Flavoring agent)
Representative examples of the flavoring agents include fragrance compositions described in Tables 11 to 18 of JP-A No. 2002-146399.
It is preferable that content of a flavoring agent is 0.1-1 mass% in a liquid cleaning composition.
(Emulsifier)
Examples of the emulsifying agent include polystyrene emulsion and polyvinyl acetate emulsion, and usually an emulsion having a solid content of 30 to 50% by mass is suitably used. For example, as a polystyrene emulsion having a solid content of 30 to 50% by mass, Cybinol RPX-196 PE-3 (trade name, solid content of 40% by mass) manufactured by Seiden Chemical Co., Ltd. may be mentioned.
The emulsifying agent content is preferably 0.01 to 0.5% by mass in the liquid detergent composition.

(Contents of component (A1), component (A2), component (B1a) and component (B2))
The sum total of content of a component (A1), a component (A2), a component (B1a), and a component (B2) is 5-25 mass% in 100 mass% of liquid cleaning agents, and 10-20 mass% is preferable. If the total content is less than 5% by mass, the detergency becomes insufficient. In addition, the viscosity of the liquid cleaning agent does not increase sufficiently, resulting in poor applicability and poor liquid breakage during measurement. On the other hand, when the total content exceeds 25% by mass, the viscosity of the liquid cleaning agent becomes too high, and the permeability to clothing decreases. Furthermore, it becomes difficult for the liquid detergent to come out of the container, and the usability deteriorates. In addition, the storage stability may be reduced.

Moreover, it is preferable that it is 40: 60-95: 5, and, as for the mass ratio of a component ( A) and a component (B1a), it is more preferable that it is 60: 40-90: 10.
When the mass ratio of the component ( A) is small, the viscosity of the liquid detergent tends to be low. In addition, the detergency against protein stains tends to decrease. On the other hand, when the mass ratio of the component ( A) increases, the viscosity of the liquid detergent tends to increase. Moreover, the detergency with respect to sebum dirt becomes easy to fall.

  Moreover, it is preferable that the mass ratio of a component (A) and a component (B2) is 60: 40-95: 5, and it is more preferable that it is 70: 30-93: 7.

By the way, as described in Patent Document 3, a conventional liquid detergent may be blended with a polymer compound such as a carboxyvinyl polymer in order to impart an appropriate viscosity.
However, since the liquid detergent of the present invention contains components (A) to (C) at a specific blending ratio, it has an appropriate viscosity even if it does not contain a polymer compound. A compound may be contained. However, when the content of the polymer compound is increased, the storage stability of the liquid detergent is lowered and stringing is likely to occur. Therefore, it is preferable that the content of the polymer compound is small, and it is more preferable not to include it.

<Preparation of liquid detergent>
The liquid detergent of the present invention dissolves or disperses the above-described components (A) to (C) and optional components as necessary in a solvent such as water, and further adjusts the pH with a pH adjuster as necessary. It can be obtained by adjusting to a desired value. The blending order of each component is not particularly limited.
As the pH adjuster, citric acid, sulfuric acid, sodium hydroxide, potassium hydroxide, alkanolamine and the like are preferable from the viewpoint of stability.

The liquid detergent of the present invention thus obtained has an appropriate viscosity. Specifically, the viscosity at 30 ° C. is preferably 500 mPa · s or more and less than 1000 or 1700 mPa · s or more and less than 2500 mPa · s, and more preferably 1000 Pa · s or more and less than 1700 mPa · s. If the viscosity is within the above range, when the liquid cleaning agent is applied directly to the dirt of clothing, it becomes difficult for the liquid to sag or the liquid to spread too much. In addition, it becomes difficult to run out of liquid during measurement.
The viscosity of the liquid detergent is a value measured by a B-type viscometer under the conditions of a temperature of 30 ° C. and a rotation speed of 30 rpm. This measurement condition was determined in consideration of the suitability of the thick feeling (viscous feeling) of the composition when the composition was taken out from the container and weighed.

<How to use>
The method of using the liquid detergent of the present invention is the usual method of use, that is, the method of pouring the liquid detergent (product of the present invention) into the water together with the laundry during washing, the product of the present invention to protein stains and sebum stains. A method of direct application, a method of preliminarily dissolving the product of the present invention in water, a method of immersing clothing, a method of applying the product of the present invention to laundry and then leaving it as appropriate, and then performing normal washing using a normal washing solution, etc. Is mentioned. In particular, since the product of the present invention has an appropriate viscosity, it is suitable for a method in which the product of the present invention is applied to the laundry, and then allowed to stand as appropriate, followed by normal washing using a normal laundry solution.

The liquid detergent of the present invention described above contains components (A) to (C) at a specific blending ratio, has a structural viscosity, and has a moderately high viscosity. Therefore, the liquid draining from the container is good, and the usability when taking out from the container or weighing is excellent. Moreover, the liquid detergent of this invention is excellent in the applicability | paintability to clothing.
Furthermore, the liquid cleaning agent of the present invention is excellent in detergency and storage stability.

  Hereinafter, the present invention will be specifically described by way of examples, but the present invention is not limited thereto.

[Raw materials]
As the component (A1), the following compounds were used.
A1-1: sodium polyoxyethylene lauryl ether sulfate (manufactured by Shin Nippon Rika Co., Ltd., “Sinoline SPE-1350”), R ¹ in the above general formula (1) = dodecyl group (lauryl group), X = sodium, m = 3 compounds.
A1-2: sodium polyoxyethylene lauryl ether sulfate (manufactured by Kao Corporation, “EMAL270N”), R ¹ = dodecyl group (lauryl group), X = sodium, m = 2 in the above general formula (1).
A1-3 (comparative product): sodium dodecyl sulfate (manufactured by Kanto Chemical Co., Inc.).
A1-4 (comparative product): sodium polyoxyethylene lauryl ether sulfate (manufactured by Taiko Yushi Chemical Co., Ltd., “Typol SFES-733”), R1 in the above general formula (1) = dodecyl group (lauryl group), X = sodium, m = 7 compound.
As the component (A2), the following compounds were used.
A2-1: Sodium linear alkylbenzene sulfonate (Laipon LS-250 (manufactured by Lion Corporation))

As the component (B1a), the following compounds were used.
B1a-1: polyoxyethylene lauryl ether (Ecogreen, “Ecolat KB-7”), R ² in the above general formula (2) = dodecyl group (lauryl group), n = 7 compound.
B1a-2: Polyoxyethylene lauryl ether (Ecogreen, “Ecolat KB-15”), R ² = dodecyl group (lauryl group) in the above general formula (2), n = 15 compound.
B1a-3: Polyoxyethylene stearyl ether (manufactured by Nikko Chemicals Co., Ltd., “BS-20”), R ² = octadecyl group (stearyl group) in the above general formula (2), n = 20 compound.
B1a-4 (comparative product): polyoxyethylene lauryl ether (manufactured by Ecogreen, “Ecolat KB-5”), R ² in the above general formula (2) = dodecyl group (lauryl group), n = 5 compound.

As the component (B1b), the following compounds were used.
B1b-1: Octanol (manufactured by Tokyo Chemical Industry Co., Ltd.), R ³ = octyl group compound in the above general formula (3).
B1b-2: Decanol (manufactured by Tokyo Chemical Industry Co., Ltd.), R ³ = decyl group compound in the above general formula (3).
B1b-3: Lauryl alcohol (manufactured by Tokyo Chemical Industry Co., Ltd.), a compound of R ³ = dodecyl group (lauryl group) in the above general formula (3).
B1b-4: a natural alcohol having 12 and 14 carbon atoms (Ecogreen Oleochemicals, “ECOROL 26”), R ³ in the above general formula (3) = a compound of a dodecyl group and a compound of a tetradecyl group (myristyl group) blend.
B1b-5: Compound of myristyl alcohol (manufactured by Tokyo Chemical Industry Co., Ltd.), R ³ = tetradecyl group (myristyl group) in the above general formula (3).
B1b-6: Cetyl alcohol (manufactured by Tokyo Chemical Industry Co., Ltd.), a compound of R ³ = hexadecyl group in the above general formula (3).
B1b-7 (comparative product): docosanol (manufactured by Tokyo Chemical Industry Co., Ltd.), R ³ in the above general formula (3) = compound of docosyl group.

B2-1 used as component (B2) was prepared as follows.
B2-1: a mixture of sodium alpha sulfopalmitate methyl ester and alpha sulfostearic acid methyl ester 1/1 in a mixture of 1/1 palmitate acid methyl ester ("Pastel M-16" manufactured by Lion Corporation) 1 kg (4.7 mol) and 1 kg (4.7 mol) of stearic acid methyl ester (“Lion Co., Ltd.“ Pastel M-18 ”) was placed in a reactor having a capacity of 3 L, and 449 g of sulfuric anhydride (“ Nisso Sulfan ”manufactured by Nisso Metal Chemical Co., Ltd.) 5.6 mol) was heated to gasify, and sulfonated by flowing in an open system with a nitrogen flow. The reaction temperature was 80 ° C., and the sulfuric acid anhydride feed rate was 10 g / min. Thereafter, an aging reaction was carried out at 80 ° C. for 30 minutes to obtain α-sulfo fatty acid methyl ester (sulfonic acid). Furthermore, 20 wt% (290 g) of methanol (manufactured by Kanto Chemical Co., Inc.) and 2 wt% (35% H ₂ O ₂ (manufactured by Kanto Chemical Co., Ltd.)) of H ₂ O ₂ as a pure component with respect to the obtained sulfonic acid 83 g) After the addition, esterification and bleaching were carried out by reacting for 60 minutes at 80 ° C. The obtained bleaching acid was adjusted to pH 7.0 with an aqueous NaOH solution, and the reaction solvent was distilled off under reduced pressure. Since it foamed, water was distilled off by adding isopropanol and azeotropically to obtain B2-1.
Moreover, B2-2 used as a component (B2) was prepared as follows.
-B2-2: Instead of methyl palmitate and stearic acid methyl ester, methyl laurate ("Pastel M-12" manufactured by Lion Corporation) and methyl myristate ("Pastel M-14" manufactured by Lion Corporation) were used. B2-2 was obtained by the same method as that for preparing B2-1 except that the mixture was mixed at a molar ratio of 3: 1.
Moreover, B2-3 used as a comparative product of component (B2) was prepared as follows.
-B2-3 (comparative product): B2-1 was prepared except that methyl caprate ("Pastel M-10" manufactured by Lion Corporation) was used instead of palmitic acid methyl ester and stearic acid methyl ester. B2-3 was obtained by a method similar to the method.

As the component (C), the following compounds were used.
-C-1: Sodium sulfate (made by Kanto Chemical Co., Inc.).
-C-2: Sodium chloride (made by Tokyo Chemical Industry Co., Ltd.).
C-3: Potassium chloride (manufactured by Kanto Chemical Co., Inc.).
-C-4: Sodium carbonate: (made by Kanto Chemical Co., Inc.).
-C-5: Potassium sulfate (made by Kanto Chemical Co., Inc.).
-C-6: Trisodium citrate (manufactured by Kanto Chemical Co., Inc.).
-C-7 (comparative product): Calcium sulfate (manufactured by Kanto Chemical Co., Inc.).

The following compounds were used as optional components.
・ MEA: Monoethanolamine, Optical Chemicals (Malaysia) manufactured by Sdn bhd ・ Citric acid: Anhui BBCA Biochemical manufactured by benzoic acid soda: manufactured by Tianjin Dongda Chemical, Inc. ・ Dye: LT Blue : Perfume Salon 7541, I.I. F. Made by company F

[Examples 1 to 4 9 , Comparative Examples 1 to 16]
<Preparation of liquid detergent>
To the 500 mL beaker, the components (A) to (C) of the types and blending amounts (mass%) shown in Tables 1 to 8 and the balance amount of water were added and sufficiently stirred. In addition, the mass% in a table | surface is the value of pure part conversion.
Subsequently, using any one of citric acid, sulfuric acid, sodium hydroxide, potassium hydroxide, and alkanolamine as a pH adjusting agent, the pH of the solution was adjusted to 7 to obtain a liquid cleaning agent.
The balance amount of water is water whose blending amount is adjusted so that the total amount of the liquid detergent as the final product is 100% by mass.
The obtained liquid cleaning agent was evaluated and measured as follows. The results are shown in Tables 1-8.
However, Examples 17 , 18 , 21 , 22 , 25 , 30 , 33 , 38 , and 41 are reference examples.

<Evaluation>
(Measurement of viscosity)
After putting 50 mL of liquid detergent in a 50 mL container and adjusting to 30 ° C., using a B-type viscometer (manufactured by Tokyo Keiki Co., Ltd.), NO. The viscosity after 30 seconds when rotating under the condition of 3 rotors and 30 rpm was measured, and the viscosity was evaluated according to the following evaluation criteria.
In addition, the judgments A and B were used as acceptance criteria.
A: The viscosity is 1000 mPa · s or more and less than 1700 mPa · s.
B: The viscosity is 500 mPa · s or more and less than 1000 mPa · s, or 1700 mPa · s or more and less than 2500 mPa · s.
C: The viscosity is 300 mPa · s or more and less than 500 mPa · s, or 2500 mPa · s or more and less than 3000 mPa · s.
D: The viscosity is less than 300 mPa · s, or 3000 mPa · s or more.

(Evaluation of applicability)
Place 10 mL of liquid detergent in a 30 mL beaker, apply the liquid detergent along the straight line of a cotton cloth with a length of 30 cm, measure the spread to the cloth, and the penetration time to the opposite side of the cloth, The applicability was evaluated according to the following evaluation criteria.
(1) Good spread Immediately after application to cotton cloth, the width of the liquid adhering to this cotton cloth was measured. In addition, what can apply | coat as a spot to the place to apply | coat is good.
In addition, the judgments A and B were used as acceptance criteria.
A: The width of the liquid is 1 cm or more and less than 1.5 cm.
B: The width of the liquid is 0.5 cm or more and less than 1 cm or 1.5 cm or more and less than 2 cm. C: The width of the liquid is less than 0.5 cm or 2 cm or more and less than 3 cm.
D: The width of the liquid is 3 cm or more.

(2) Penetration time The time until the back surface of the cotton cloth was wet after being applied to the cotton cloth was measured. In addition, if the penetration time is too early, it will be easy to sag before it is applied and put into the washing machine, and if the penetration time is too slow, it will be difficult to penetrate before starting washing.
In addition, the judgments A and B were used as acceptance criteria.
A: The penetration time is 60 seconds or more and less than 120 seconds.
B: Penetration time is 30 seconds or more and less than 60 seconds, or 120 seconds or more and less than 180 seconds.
C: Penetration time is 180 seconds or more and less than 300 seconds.
D: Penetration time is less than 30 seconds, 300 seconds or more.

(Evaluation of running out of liquid)
The liquid cleaning agent placed in a 100 mL graduated cylinder is tilted 120 degrees, the liquid cleaning agent is taken out of the graduated cylinder for 3 seconds, and when it is returned to the vertical, the length of liquid dripping on the outer wall of the graduated cylinder is measured. Liquid breakage was evaluated according to criteria.
In addition, the judgments A and B were used as acceptance criteria.
A: The dripping length is less than 1 mm.
B: The dripped length is 1 mm or more and less than 5 mm.
C: The dripped length is 5 mm or more and less than 10 mm.
D: The dripped length is 10 mm or more.

(Evaluation of cleaning power)
Making dirt cloth;
Ten sheets of dirty cloth (dirt cloth) prepared by rubbing the sebum stain on the face against 100th cotton plain weave cloth (uncontaminated cloth) cut into 10 cm square were prepared.
Apply 0.8 mL of liquid detergent to the soiled area on the soiled cloth, and 10 sheets of this soiled cloth and 1 kg of cotton non-wearing skin shirt with 30 L of tap water (15 ° C, 4 ° DH). The two-tank washing machine ("CW-C30A" manufactured by Mitsubishi Electric Corporation) was put in, and 2 mL of liquid detergent (total liquid detergent amount was 10 mL) was added and washed for 10 minutes.
Then, after dehydrating for 1 minute, the process of rinsing with 30 L of tap water (15 ° C., 4 ° DH) for 3 minutes was repeated twice. After further dehydration for 1 minute, it was naturally dried indoors.

Evaluation;
The Z value of the uncontaminated cloth and the dirt cloth before and after washing was measured using a colorimetric color difference meter (manufactured by Nippon Denshoku Industries Co., Ltd., “SE2000”), and the washing rate was obtained from the following formula (i). .
Washing rate (%) = (Z value of dirty cloth after washing−Z value of dirty cloth before washing) / (Z value of uncontaminated cloth−Z value of dirty cloth before washing) × 100・ (I)

The cleaning power was evaluated according to the following evaluation criteria from the obtained cleaning rate (average value of 10 sheets subjected to cleaning processing simultaneously).
In addition, the judgments A and B were used as acceptance criteria.
A: The cleaning rate is 75% or more.
B: The cleaning rate is 65% or more and less than 75%.
C: The cleaning rate is 55% or more and less than 65%.
D: The cleaning rate is less than 55%.

(Evaluation of storage stability)
Put the liquid detergent in the glass bottle, perform the process of heating and cooling between 10 ° C and 30 ° C for 2 cycles / day for 2 weeks, visually observe the appearance, and keep the storage stability according to the following evaluation criteria evaluated.
In addition, the judgments A and B were used as acceptance criteria.
A: Transparent and uniform.
B: Slight turbidity is generated, but when left at 30 ° C., it becomes transparent.
C: Turbidity has occurred and does not recover even when left at 30 ° C.
D: The cloudiness is separated.

Tables 1-3 are the data of a component (A), a component (B1), and a component (C) type | system | group. Data consisting of a combination of
As is clear from Tables 1 to 3, the liquid detergent obtained in each example had an appropriate viscosity. In addition, the result of good spreading to the fabric and penetration time was good, the coating property was excellent, and the liquid breakage was good. Furthermore, it was excellent in detergency and storage stability.
In particular, in the combination of component (A1), component (B1), and component (C), Examples 5 to 8, Examples 12 to 16, and Examples 28 and 32 have moderately high viscosities, excellent coating properties, and liquids. Cutting, cleaning power and storage stability were excellent. In these examples, the average EO addition mole number of the component (A1) is 2, the component (B1a) is polyoxyethylene lauryl ether having an average EO addition mole number of 15 mol, and the component (A1) + component (B1a) The component (B1b) is a C10-C14 alcohol and its content is in the range of 0.8-3.0%, and the component (A1): component (B1a) The mass ratio was in the range of 60:40 to 90:10, and the component (C) content was in the range of 1.0 to 5.0 mass%.
From the comparison between Example 1 and Example 6, it can be seen that the component (A1) is more preferably A1-2 than A1-1. From the comparison of Examples 2, 3, and 6, it can be seen that the component (B1a) is more preferably the component (B1a-2). From the comparison of Examples 4 to 9, it can be seen that the component (B1b) having 10 to 14 carbon atoms or a mixture thereof is more preferable. However, as can be seen from Examples 4 and 9, even if the component (B1b) is octyl alcohol or cetyl alcohol, the component (B1b) is within the range of 0.8% to 3.0%. It can be seen that it has a function that satisfies
In the comparison of Examples 12 to 16, if the selection of the component (A1), the component (B1a), and the component (B1b), the ratio, and the blending amount are the same, the evaluation varies greatly even if the type of the component (C) is changed. You can see that there is no.
In Examples 18 to 21, the mass ratio of component (A1): component (B1a) was varied, and the mass ratio was in the range of 40:60 to 95: 5. You can see that Moreover, it turns out that the ratio of 60: 40-90: 10 is more preferable.
From the comparison of Examples 6 and 23 to 25, the total amount of component (A1) + component (B1a) is 5%, 25% is the lower limit and upper limit of the acceptance criteria, and the total amount is 5%. It turns out that it is the last pass.
In Examples 26 to 29, the amount of component (B1b) was varied. If the amount of the component (B1b) is in the range of 0.8 to 3.0%, it can be seen that it has a function that satisfies the problems of the present invention, and that there is an optimum amount.
In Examples 30 to 33, the amount of the component (C) is varied. The liquid detergents of Examples 29 and 30 have a reasonably high viscosity, particularly remarkable spreadability to the cloth, and the content of the component (C) is more preferably 1.0 to 5.0% by mass. I understand.
Examples 10 and 11 were obtained by replacing part or all of the component (A1) of Example 6 with the component (A2), but the evaluations were almost the same.

Table 4 shows a formulation example of the liquid detergent based on the combination of the component (A1), the component (B1), and the component (C) in which a liquidity adjusting agent or the like is blended.
As is clear from Example 34, although the blending amount is slightly different from Example 7, it has almost the same viscosity, good spreading to the cloth, excellent permeation time result, The cut was good. Furthermore, the detergency and storage stability were excellent.

Table 5 shows data of a system containing the component (A), the component (B2), and the component (C).
As apparent from Table 5, the liquid detergents obtained in Examples 35 to 45 had an appropriate viscosity. Moreover, the spread to the cloth was good, the result of the permeation time was excellent, and the liquid breakage was good. Furthermore, it was excellent in detergency and storage stability.
As is clear from these results, it was shown that the object of the present invention can be achieved by replacing the combination of the component (B1a) and the component (B1b) with the component (B2) in combination with the component (A). . That is, if the total content of the component (A) and the component (B2) is in the range of 5 to 25% and the C component content is in the range of 0.5 to 8%, the component (A) and the component (B2) In addition, the system containing the component (C) also has an appropriate viscosity, good spread to the cloth and good results of penetration time, excellent applicability, good liquid drainage, cleaning power and storage A liquid detergent composition having excellent stability could be obtained. In Examples 35 to 38, the mass ratio of A2-1 (as component (A2)) and B2-1 (as component B2) was varied, and 60:40 to 95: 5 was preferable, and 70:30 to It can be seen that 93: 7 is more preferable. Moreover, Examples 39-41 shakes the quantity of a component (C), and it turns out that the range whose content of a component (C) is 1.0 to 3% is more preferable. Further, in contrast to Examples 35 and 42, in the system containing Component (B2), Component (A2) gives higher viscosity to the composition than Component (A1). From this aspect, it can be seen that B2-1 having a long chain length is superior to B2-2. In addition, Example 45 shows that the same effect can be obtained by mixing the components (A) A1 and A2.

Next, Table 6 shows the evaluation results of the prescription with optional components added for combinations in which component (A), component (B), and component (C) coexist.
In Examples 46 and 47, a system in which the component (A1), the component (B1a), the component (B1b), the component (B2), and the component (C) coexist is used. In Example 48, the component (A2), the component ( B1a), component (B1b), component (B2), and component (C) coexist in Example 49. In Example 49, component (A1), component (A2), component (B1a), component (B1b), component ( B2), a system in which component (C) coexists.
As is clear from Examples 46 to 49, it has an appropriate viscosity, good spread to cloth and good results of penetration time, excellent applicability, good liquid drainage, A liquid detergent composition having excellent storage stability could be obtained.

Tables 7 and 8 show comparative examples. In Comparative Examples 1 to 16, except Comparative Examples 9, 10, and 16, the system is a comparative example in which the component (A1), the component (B1), and the component (C) are combined. Therefore, first, comparative examples other than the comparative examples 9, 10, and 16 will be described.
As apparent from Tables 7 and 8, the liquid detergents of Comparative Examples 1, 2, 3, 4, and 11 lacking any of the component (A1), the component (B1a), the component (B1b), and the component (C) are The viscosity was low and the applicability was poor.
Comparative Example 1 lacking the component (A1) did not develop viscosity, was inferior in applicability, and did not have sufficient protein detergency. The liquid detergent of Comparative Example 2 lacking the component (B1a) had a viscosity that was too high, was inferior in applicability, and was poor in liquid drainage. Also, the detergency was poor. In Comparative Example 3 lacking the component (B1b), viscosity was not exhibited, and coating properties were insufficient. In Comparative Example 4 lacking the component (C), viscosity was not exhibited and coating properties were insufficient. In Comparative Example 11 lacking the component (B1b), viscosity was not exhibited and coating properties were insufficient.
Instead of the component (A1), the component (B1a), the component (B1b), and the component (C), the liquid detergents of Comparative Examples 5 to 8 using any of the comparative products have low viscosity and poor coating properties. It was. In addition, in all cases, the storage stability was poor.
The liquid detergent of Comparative Example 12 in which the total content of the component (A1) and the component (B1a) was 4% by mass had low viscosity and poor applicability. Also, the cleaning power and storage stability were poor. The liquid cleaning agent of Comparative Example 13 in which the total content of the component (A1) and the component (B1a) was 26% by mass was too high in viscosity and inferior in applicability and poor in liquid drainage. The storage stability was also poor.
When the total content of component (A1) and component (B1a) is as small as 6% by mass, the content of (C) has an appropriate range, and the viscosity is 0.3% by mass or 9% by mass 14 and 15 had a much lower viscosity than Example 17 and were inferior in applicability. The storage stability was also poor.
Next, in the component (A), component (B2) and component (C) systems, Comparative Example 9 used B2-3 as a comparative component as the component (B2). The liquid detergent of Comparative Example 9 had a low viscosity, poor applicability, and insufficient detergency. In Comparative Example 10, the component (A) is a comparative component. The viscosity was low and the applicability was poor. Moreover, even if the component (A) and the component (B2) were combined in the comparative example 16, if the component (C) was missing, the viscosity was low and the applicability was poor.

  The liquid detergent for clothes of the present invention is excellent in detergency, has an appropriate viscosity, is excellent in applicability to clothes, is well drained from the container, and is excellent in storage stability. Therefore, it can be suitably used as a liquid cleaning agent for clothing.

Claims (2)

Contains the following components (A) to (C),
Component (A) is at least one selected from the group consisting of component (A1) and component (A2),
Component (A1) is a polyoxyethylene alkyl ether sulfate represented by the general formula (1),
Component (A2) is an alkylbenzene sulfonate represented by the general formula (4),
Component (B) is component (B1), or component (B1) and component (B2),
Component (B1) is component (B1a) and component (B1b),
Component (B1a) is a polyoxyethylene alkyl ether represented by the general formula (2),
Component (B1b) is a higher alcohol represented by the general formula (3),
Component (B2) is an alpha sulfo fatty acid alkyl ester salt represented by the general formula (5),
Component (C) is a water-soluble inorganic salt or an organic acid salt having 1 to 6 carbon atoms (provided that the salt is at least one selected from the group consisting of sodium, potassium and magnesium), and the content thereof 1.0 to 5 . 0% by mass,
Said component (A1), (B1a), the sum content of 5 to 2 0% by weight of (A2) and (B2),
The content of the component (B1b) is 0.8 to 3.0% by mass,
A liquid detergent for clothing, wherein a mass ratio of the component (A) to the component (B1a) is component (A): component (B1a) = 60: 40 to 90:10.

[Wherein, R ¹ represents an alkyl group or alkenyl group having 8 to 18 carbon atoms, X represents an alkali metal, an alkaline earth metal, ammonium or ethanolamine, and m represents the average number of moles of ethylene oxide added. ~ 3. ]

[Wherein R ⁴ is a linear or branched alkyl group having 8 to 20 carbon atoms, C ₆ H ₄ is a divalent group obtained by removing two hydrogen atoms from a benzene ring, and X ₁ is Alkali metal, alkaline earth metal, ammonium or ethanolamine. ]

[Wherein, R ² represents a linear or branched alkyl group or alkenyl group having 8 to 18 carbon atoms, and n represents an average addition mole number of ethylene oxide, which is 7 to 20. ]

[Wherein, R ³ represents a linear or branched alkyl group having 8 to 18 carbon atoms. ]

[Wherein, R ⁵ represents a linear alkyl group or alkenyl group having 10 to 16 carbon atoms. R ⁶ is a linear or branched alkyl group having 1 to 3 carbon atoms, and X ₂ is an alkali metal, an alkaline earth metal, ammonium or ethanolamine. ] Contains the following components (A) to (C),
Component (A) is at least one selected from the group consisting of component (A1) and component (A2),
Component (A1) is a polyoxyethylene alkyl ether sulfate represented by the general formula (1),
Component (A2) is an alkylbenzene sulfonate represented by the general formula (4),
Component (B) is component (B2), or component (B2) and component (B1),
Component (B1) is component (B1a) and component (B1b),
Component (B1a) is a polyoxyethylene alkyl ether represented by the general formula (2),
Component (B1b) is a higher alcohol represented by the general formula (3),
Component (B2) is an alpha sulfo fatty acid alkyl ester salt represented by the general formula (5),
Component (C) is at least one selected from the group consisting of sodium sulfate, sodium carbonate, sodium chloride, potassium chloride, potassium sulfate, and magnesium sulfate, and the content thereof is 1.0 to 3 . 0% by mass,
Said component (A1), (B1a), Ri total content 5 to 25% by mass of (A2) and (B2),
A liquid detergent for clothing, wherein a mass ratio of the component (A) to the component (B2) is component (A): component (B2) = 70: 30 to 93: 7 .

[Wherein, R ¹ represents an alkyl group or alkenyl group having 8 to 18 carbon atoms, X represents an alkali metal, an alkaline earth metal, ammonium or ethanolamine, and m represents the average number of moles of ethylene oxide added. ~ 3. ]

[Wherein R ⁴ is a linear or branched alkyl group having 8 to 20 carbon atoms, C ₆ H ₄ is a divalent group obtained by removing two hydrogen atoms from a benzene ring, and X ₁ is Alkali metal, alkaline earth metal, ammonium or ethanolamine. ]

[Wherein, R ² represents a linear or branched alkyl group or alkenyl group having 8 to 18 carbon atoms, and n represents an average addition mole number of ethylene oxide, which is 7 to 20. ]

[Wherein, R ³ represents a linear or branched alkyl group having 8 to 18 carbon atoms. ]

[Wherein, R ⁵ represents a linear alkyl group or alkenyl group having 10 to 16 carbon atoms. R ⁶ is a linear or branched alkyl group having 1 to 3 carbon atoms, and X ₂ is an alkali metal, an alkaline earth metal, ammonium or ethanolamine. ]