JP2018002822A - Liquid detergent composition for clothing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid detergent composition for clothing which is excellent in detergency with respect to solid fat and has good wettability to a cloth.SOLUTION: A liquid detergent composition for clothing contains an anionic surface active agent (A), a semi-polar surface active agent (B) and a compound represented by R-O-[(EO)/(PO)]-H (Ris an alkyl group having 2 to 6 carbon atoms, m represents an average repeating number of EO, n represents an average repeating number of PO, m is the number of 0 to 5, n is the number of 0 to 5, an expression of 1≤m+n≤5 holds, EO represents an oxyethylene group, PO represents an oxypropylene group, and EO and PO may coexist), where a mass ratio of component (A)/component (B) is 0.5 to 2.SELECTED DRAWING: None

Description

  The present invention relates to a liquid cleaning composition for clothing.

Among the stains on clothes, residual sebum that causes a foul odor on towels and sebum stains on collar sleeves are among the top stains consumers want to remove.
For example, in Examples of Patent Document 1, a polyoxyalkylene type nonionic surfactant having a short EO chain length obtained by adding 2 to 5 moles of ethylene oxide (also referred to as EO) to a higher alcohol is effective in cleaning sebum soil. It has been shown.

JP 2002-167600 A

However, the method described in Patent Document 1 is not always sufficient. For example, solid fat (fatty oil that is solid at normal temperature) among human-derived sebum is less likely to be removed by conventional methods than liquid fat, and improvement in cleaning performance for solid fat is desired.
Also, from the viewpoint of cleanability and usability, it is preferable that the wet spreadability to the cloth is good when the detergent is applied to a dirty portion such as a collar sleeve.
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a liquid detergent composition for clothing that has excellent detergency for solid fat and has good wettability to cloth.

The present invention has the following aspects.
[1] (A) component: an anionic surfactant, (B) component: a semipolar surfactant, and (C) component: a compound represented by the following formula (1): (A) component / ( B) The liquid detergent composition for clothes whose mass ratio of a component is 0.5-2.
_{^{R 11 -O - [(EO)}} m / (PO) n] -H ··· (1)
[Wherein R ¹¹ represents an alkyl group having 2 to 6 carbon atoms. m represents the average number of repetitions of EO, n represents the average number of repetitions of PO, m is a number from 0 to 5, n is a number from 0 to 5, and 1 ≦ m + n ≦ 5. EO represents an oxyethylene group, PO represents an oxypropylene group, and EO and PO may be mixed. ]
[2] The liquid detergent composition for clothing according to [1], wherein the mass ratio of component (B) / component (C) is 0.5 or more.
[3] It is preferable that the total content of the surfactant is 5 to 20% by mass with respect to the liquid detergent composition for clothing.

  The liquid detergent composition for clothes of the present invention has good wettability to cloth and is excellent in detergency against solid fat.

The liquid detergent composition for clothing of the present invention (hereinafter also simply referred to as a liquid detergent) comprises (A) component: anionic surfactant, (B) component: semipolar surfactant, and (C) component: The compound represented by Formula (1) is contained.
≪ (A) component: anionic surfactant≫
Examples of the anionic surfactant include linear alkyl benzene sulfonic acid or a salt thereof; α-olefin sulfonate; linear or branched alkyl sulfate ester salt; alkyl ether sulfate ester salt; alkenyl ether sulfate ester salt; Alkane sulfonate having a group; α-sulfo fatty acid ester salt and the like.
Examples of the salt form of the component (A) include alkali metal salts such as sodium and potassium; alkaline earth metal salts such as magnesium; alkanolamine salts such as monoethanolamine salt and diethanolamine salt.
(A) A component may be 1 type and may use 2 or more types together.

(A) It is preferable that a component contains 1 or more types chosen from the group which consists of a linear alkylbenzenesulfonic acid or its salt, and an alkyl ether sulfate ester salt.
(A) It is more preferable that a component contains 1 or more types of a linear alkylbenzenesulfonic acid or its salt at least.
(A) It is preferable that the sum total of a linear alkylbenzenesulfonic acid or its salt is 20-100 mass% with respect to the sum total of a component, and it is more preferable that it is 50-100 mass%.

As the linear alkylbenzene sulfonate, those having 8 to 16 carbon atoms in the linear alkyl group are preferable, and those having 10 to 14 carbon atoms are particularly preferable.
As the alkyl ether sulfate ester salt, a polyoxyethylene alkyl ether sulfate ester salt having a linear or branched alkyl group having 10 to 20 carbon atoms and added with an average of 1 to 10 moles of ethylene oxide is preferable.

The content of the component (A) is preferably 10% by mass or less, more preferably 1 to 7% by mass, and particularly preferably 3 to 5% by mass with respect to the liquid detergent.
When the content of the component (A) is not less than the lower limit of the above range, the solid fat cleaning power is excellent, and when it is not more than the upper limit, the appearance of the liquid detergent is excellent.

≪ (B) component: semipolar surfactant≫
Examples of the semipolar surfactant include amine oxide type surfactants. Among these, a compound represented by the following formula (2) is preferable. One type of semipolar surfactant may be used, or two or more types may be used in combination.

[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; X represents —CONH— , —NHCO—, —COO—, or —OCO—; R ² is an alkylene group having 1 to 5 carbon atoms; R ³ and R ⁴ are each independently an alkyl group having 1 to 3 carbon atoms or A hydroxyalkyl group having 1 to 3 carbon atoms; p is 0 or 1; ]

In Formula (2), R ¹ is preferably a linear or branched alkyl group having 7 to 22 carbon atoms, and more preferably a linear or branched alkyl group having 9 to 14 carbon atoms.
X is preferably -CONH- or -NHCO-, more preferably -CONH-.
R ² is preferably an alkylene group having 1 to 3 carbon atoms, and more preferably a propylene group.
R ³ and R ⁴ are each independently preferably an alkyl group having 1 to 3 carbon atoms, and more preferably a methyl group. In particular, it is preferable that both R ³ and R ⁴ are methyl groups.
Among the amine oxide surfactants represented by the formula (2), compounds represented by the following general formula (3) or general formula (4) are more preferable.
It is preferable that (B) component contains 1 or more types chosen from the group which consists of a compound represented by the compound represented by General formula (3), and General formula (4).

[Wherein R ⁵ is a linear or branched alkyl group having 8 to 18 carbon atoms or a linear or branched alkenyl group having 8 to 18 carbon atoms; R ⁶ and R ⁷ are These are each independently an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group having 1 to 3 carbon atoms. ]

In Formula (3), R ⁵ is preferably a linear or branched alkyl group having 8 to 18 carbon atoms, and more preferably a linear or branched alkyl group having 10 to 14 carbon atoms.
R ⁶ and R ⁷ are each independently preferably an alkyl group having 1 to 3 carbon atoms, and more preferably a methyl group. In particular, it is more preferable that R ⁶ and R ⁷ are both methyl groups.

[Wherein R ⁸ is 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; and R ⁹ and R ¹⁰ are Each independently represents 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. ]

In Formula (4), R ⁸ is preferably a linear or branched alkyl group having 7 to 22 carbon atoms, and more preferably a linear or branched alkyl group having 9 to 13 carbon atoms.
R ⁹ and R ¹⁰ are each independently preferably an alkyl group having 1 to 3 carbon atoms, and more preferably a methyl group. In particular, it is more preferable that R ⁹ and R ¹⁰ are both methyl groups.
q is preferably an integer of 1 to 3, and more preferably 3.

(B) A component may be 1 type and may use 2 or more types together.
The content of the component (B) is preferably 1 to 10% by mass, more preferably 2 to 7% by mass, and particularly preferably 3 to 5% by mass with respect to the liquid detergent.
When the content of the component (B) is not less than the lower limit of the above range, the solid fat cleaning power is excellent, and when it is not more than the upper limit, the stability of the liquid detergent is excellent.

≪ (C) component≫
Component (C) is a compound represented by the following formula (1). The component (C) acts as a solvent and contributes to improving the wet spreadability of the liquid detergent onto the cloth.
_{^{R 11 -O - [(EO)}} m / (PO) n] -H ··· (1)
[Wherein R ¹¹ represents an alkyl group having 2 to 6 carbon atoms. m represents the average number of repetitions of EO, n represents the average number of repetitions of PO, m is a number from 0 to 5, n is a number from 0 to 5, and 1 ≦ m + n ≦ 5. EO represents an oxyethylene group, PO represents an oxypropylene group, and EO and PO may be mixed. ]

In Formula (1), R ¹¹ is preferably an alkyl group having 2 to 4 carbon atoms, and more preferably an alkyl group having 4 carbon atoms.
m is preferably 1 to 3, n is preferably 0 to 3, and 1 ≦ m + n ≦ 4 is preferable. More preferably, m is 1 to 3, n is 0 to 2, and 1 ≦ m + n ≦ 3.

Specific examples of the component (C) include ethylene glycol monobutyl ether, diethylene glycol monoethyl ether, diethylene glycol monopropyl ether, diethylene glycol monobutyl ether, diethylene glycol isobutyl ether, diethylene glycol monohexyl ether, diethylene glycol monoisopropyl ether, triethylene glycol monobutyl ether, propylene. Examples include glycol monopropyl ether, propylene glycol monobutyl ether, dipropylene glycol monopropyl ether, dipropylene glycol monobutyl ether, and polyalkylene glycol monobutyl ether (m = 1, n = 1 to 3).
Among these, ethylene glycol monobutyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, diethylene glycol isobutyl ether, triethylene glycol monobutyl ether, and polyalkylene glycol monobutyl ether (m = 1, n = 1 to 2) are preferable, and diethylene glycol monobutyl ether Polyalkylene glycol monobutyl ether (m = 1, n = 1 to 2) is more preferable.

(C) A component may be 1 type and may use 2 or more types together.
The content of the component (C) is preferably 0.1 to 7% by mass, more preferably 0.3 to 5% by mass, and further preferably 0.5 to 3% by mass with respect to the liquid detergent.
When the content of the component (C) is equal to or higher than the lower limit of the above range, the effect of improving the wetting and spreading property of the liquid cleaning agent on the cloth is excellent, and when the content is equal to or lower than the upper limit, the odor is satisfactorily suppressed and the fragrance of the liquid cleaning agent Excellent.

In the liquid cleaning agent of the present invention, the (A) component / (B) component representing the mass ratio of the content of the (A) component to the content of the (B) component is more than 0 to 2, and 0.2 to 1 .5 is preferable, and 0.5 to 1.2 is more preferable. When the component (A) / component (B) is in the above range, the solid fat cleaning power is excellent.
0.5 or more are preferable, (B) component / (C) component showing mass ratio of content of (B) component with respect to content of (C) component, 0.5-10 are more preferable, and 1-10 are More preferably, 2 to 5 is particularly preferable. When the component (B) / component (C) is at least the lower limit of the above range, the odor is satisfactorily suppressed and the scent of the liquid detergent is excellent. When the amount is not more than the upper limit, wetting and spreading to the cloth is excellent.

≪Water≫
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.
70 mass% or more is preferable with respect to a liquid cleaning agent, 80 mass% or more is more preferable, and 80-95 mass% is further more preferable.

≪Optional ingredient≫
In the liquid cleaning agent of the present invention, optional components other than the components described above may be blended as necessary within a range not impairing the effects of the present invention.
The optional component is not particularly limited, and components blended in the liquid detergent can be used as appropriate. For example, other surfactants that do not fall under any of the components other than (A) or (B), (C) other solvents that do not fall under any of the components or water, hydrotropes, pH adjusters, bleaching ingredients, Examples include a metal-trapping component, a radical trap agent, and a fragrance.
5-8 are preferable and, as for pH (25 degreeC) of a liquid detergent, 6-7.5 are more preferable. A pH adjuster is added as necessary.
The pH of the liquid detergent (controlled at 25 ° C.) is a value measured by a pH meter (“HM-30G” manufactured by Toa DKK Corporation).

≪Other surfactants≫
Examples of surfactants other than the components (A) and (B) include nonionic surfactants and amphoteric surfactants.
[Amphoteric surfactant]
Examples of amphoteric surfactants include amphoteric interfaces such as alkylbetaine type, alkylamide betaine type, imidazoline type, alkylaminosulfonic acid type, alkylaminocarboxylic acid type, alkylamidecarboxylic acid type, amide amino acid type or phosphoric acid type. An activator is mentioned.

[Nonionic surfactant]
From the viewpoint of more improved detergency and liquid stability, the liquid detergent preferably contains a nonionic surfactant.
The number of carbon atoms of the hydrophobic part (long chain hydrocarbon group) in the nonionic surfactant is preferably 8 to 22 and more preferably 10 to 18 because the blending effect of the nonionic surfactant is easily exhibited. More preferably, it is 10-16, Most preferably, it is 12-14.
Nonionic surfactants include, for example, polyoxyalkylene type nonionic surfactants obtained by adding alkylene oxide to higher alcohols, alkylphenols, higher fatty acids, higher fatty acid alkyl esters or higher amines; polyoxyethylene polyoxypropylene block copolymers; fatty acids Examples include alkanolamines; fatty acid alkanolamides; polyhydric alcohol fatty acid esters or alkylene oxide adducts thereof; alkylene oxide adducts of hardened castor oil; sugar fatty acid esters; N-alkyl polyhydroxy fatty acid amides;
One nonionic surfactant may be used alone, or two or more nonionic surfactants may be used in combination. Among these, a polyoxyalkylene type nonionic surfactant is preferable, and a polyoxyalkylene type nonionic surfactant obtained by adding an alkylene oxide to a higher alcohol is more preferable.
When the nonionic surfactant is blended, the content is preferably more than 0% by mass and 15% by mass or less, more preferably 0.5 to 12% by mass, and further preferably 1 to 10% by mass with respect to the liquid detergent. . When the content of the nonionic surfactant is not less than the lower limit of the above range, the effect of improving the detergency and liquid stability is excellent, and when it is not more than the upper limit, the solid fat detergency and liquid stability are further improved.

The total surfactant content is preferably 5 to 20% by mass, more preferably 5 to 18% by mass, and even more preferably 6 to 15% by mass with respect to the liquid detergent.
The total amount of the component (A) and the component (B) is preferably 10 to 100% by mass, more preferably 20 to 90% by mass, and more preferably 25 to 80% by mass with respect to the total content of the surfactant. Further preferred.

≪Other solvents≫
Examples of other solvents include C2-C4 monohydric alcohols and C2-C4 polyhydric alcohols. Examples of the monohydric alcohol having 2 to 4 carbon atoms include ethanol, 1-propanol, 2-propanol, 1-butanol and the like. Examples of the polyhydric alcohol having 2 to 4 carbon atoms include ethylene glycol, propylene glycol, butylene glycol, glycerin and the like. Another solvent may be used individually by 1 type, and may use 2 or more types together.
The content when other solvents are blended is preferably more than 0% by mass to 15% by mass or less, more preferably 0.1 to 10% by mass, and 0.5 to 7% by mass with respect to the liquid detergent. Further preferred. If the content of the other solvent is not less than the lower limit of the above range, the stability improvement effect of the liquid detergent is excellent, and if it is not more than the upper limit, the odor is satisfactorily suppressed and the scent of the liquid detergent is excellent.

≪Perfume≫
The fragrance includes a fragrance raw material alone, or a fragrance composition comprising a fragrance raw material, a fragrance solvent, a fragrance stabilizer, and the like, and is a liquid detergent for clothes, a liquid bleach detergent, a liquid bleach. The fragrance | flavor normally used for etc. can be mix | blended. In a liquid detergent composition, it is preferable that content of a fragrance | flavor is 0.01-1.0 mass% with respect to the total mass of a liquid detergent composition.

≪Method for producing liquid detergent composition for clothing≫
The production method of the liquid detergent of the present invention is not particularly limited, and is produced by a conventionally known production method.
For example, the (A) component, the (B) component, the (C) component, and an optional component blended as necessary are mixed and dissolved in a solvent (for example, water such as ion-exchanged water) It can manufacture by adjusting so that it may become pH.

≪How to use liquid detergent composition for clothing≫
The method of using the liquid detergent is, for example, a method in which the liquid detergent is poured into water together with the object to be washed at the time of washing, the object to be washed in a liquid detergent aqueous solution prepared by dissolving the liquid detergent in water in advance. Examples include a dipping method. Alternatively, the liquid detergent may be applied directly to the article to be washed and left for a certain period of time, after which normal washing may be performed (coating washing).
Examples of items to be washed include textiles such as clothes, cloths, towels and sheets.
When using a liquid detergent dissolved in water, for example, it is preferable to dilute 5 to 5000 times (volume basis).

The liquid detergent of the present invention comprises (A) component, (B) component and (C) component, and (A) component is selected from the group consisting of linear alkylbenzene sulfonic acid or its salt and alkyl ether sulfate ester salt Including at least one selected from the group consisting of a compound represented by the general formula (3) and a compound represented by the general formula (4), and the component (C): It is preferable to contain at least one selected from the group consisting of diethylene glycol monobutyl ether and polyalkylene glycol monobutyl ether (average EO repeat number m = 1, PO average repeat number n = 1 to 2).
Furthermore, it is preferable that 1 or more types chosen from the group which consists of a C2-C4 monohydric alcohol and a C2-C4 polyhydric alcohol are included.

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: anionic surfactant>
A-1: Linear alkyl (10 to 14 carbon atoms) sodium benzenesulfonate, manufactured by Lion Corporation, trade name “Lypon LS250”.
A-2: Sodium polyoxyethylene alkyl ether sulfate (sulfur oxide of ethylene oxide adduct (average addition mole number 1) of C12-14 synthetic alcohol, manufactured by Lion Corporation)
<(B) component: Semipolar surfactant>
B-1: Lauric acid amidopropyldimethylamine oxide, manufactured by Clariant, trade name “GENAMINOX AP”; in the general formula (4), R ⁸ = C11 linear alkyl group, R ⁹ = methyl group, R ¹⁰ = Methyl group, q = 3.
B-2: n-dodecyldimethylamine oxide, manufactured by Lion Akzo Co., Ltd., trade name “Aromox DM12D-W”; R ⁵ in formula (3) = a linear alkyl group having 12 carbon atoms, R ⁶ = methyl Group, R ⁷ = methyl group.
<(B ′) Component: Comparative Component of (B) Component>
B′-1: lauryldimethylaminoacetic acid betaine, manufactured by Daiichi Kogyo Seiyaku Co., Ltd., trade name “Amigen S”. Amphoteric surfactant.

<(C) component>
C-1: Diethylene glycol monobutyl ether (also known as butyl carbitol), manufactured by Nippon Emulsifier Co., Ltd.
C-2: Polyalkylene glycol monobutyl ether (average of 1 mol of ethylene oxide and average of 1.9 mol of propylene oxide added to alcohol having 4 carbon atoms, manufactured by Lion Chemical Co., Ltd.)
<(C ′) Component: Comparative Component of (C) Component>
PG: 1,2-propanediol (manufactured by Dow Chemical Company).
PEG: Polyethylene glycol (weight average molecular weight about 1000, 60% aqueous solution), manufactured by Lion Chemical.
<Optional component>
AE: Nonionic surfactant, 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 6 moles of ethylene oxide added Product name “Leox CL-60”, manufactured by Lion Corporation.
EtOH: Ethanol, manufactured by Nippon Alcohol Sales Co., Ltd., trade name “specific alcohol 95 degree synthesis”.
Fragrance | flavor: The fragrance | flavor composition A of Tables 11-18 of Unexamined-Japanese-Patent No. 2002-146399.
pH adjuster: sulfuric acid (manufactured by Toho Zinc Co., Ltd.), sodium hydroxide (manufactured by Tsurumi Soda Co., Ltd.).
<Solvent>
Water: Purified water.

[Production of liquid detergent composition for clothing]
Tables 1 and 2 show the composition (compounding component, content (unit: mass%)) of the liquid detergent of 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 pH adjusting agent (sulfuric acid or sodium hydroxide) added to adjust the pH (25 ° C.) of the liquid cleaning agent to the pH value in the table. The amount added is shown.
“Balance” indicating the water content means the balance added so that the total blending amount (% by mass) of all the blending components becomes 100% by mass.

(Examples 1-25)
Examples 1 to 18 are examples, and examples 19 to 25 are comparative examples.
According to the composition shown in Tables 1-2, (A) component, (B) component (or (B ') component), (C) component (or (C') component), and arbitrary components (pH adjuster) Was added to water and mixed, and a pH adjusting agent was added thereto to adjust the pH value of the liquid cleaning agent described in the table to prepare each of the liquid cleaning agents in each example.
However, in Example 19, neither component (B) nor component (B ′) was used. In Example 25, neither component (C) nor component (C ′) was used, and instead the amount of ethanol as an optional component was increased.
About the liquid cleaning agent of each example, the solid fat cleaning power and the wet spread property to cloth were each evaluated by the following method. The evaluation results are shown in Tables 1-2.

[Evaluation of solid fat cleaning power]
(1) Manufacture of oil-stained soil cloth Polyester tropical cloth obtained by diluting beef tallow 5 times with chloroform and adding 0.030 mL of a solution containing 0.01% oil red to 3 cm x 3 cm (Tanigami Shoten) The oil-stained dirt cloth was then dripped onto the product and air-dried at room temperature for 2 to 3 hours.
(2) Cleaning test 0.12 mL of the same liquid cleaning agent was applied to each of the five oil-stained soil cloths so as to cover the entire area where the oily soil was adhered, and left for 5 minutes.
Next, in Terg-O-Tometer (manufactured by UNITED STATES TESTING) filled with 900 mL of tap water at 15 ° C., 5 g of oil-stained dirt cloth and 0.3 g of commercially available detergent (“TOP NANOX” manufactured by Lion Corporation) Then, a clean knitted fabric was added so that the bath ratio would be 20 times, and washed at 120 rpm for 10 minutes.
Next, 5 oil-stained soil cloths after washing are taken out, and the oil-stained soil cloths are rinsed with running water for 3 minutes with a 2-tank washing machine (CW-C30A1 type, manufactured by Mitsubishi Electric Corporation), Next, after dehydration for 1 minute, it was air-dried.
(3) Evaluation of solid fat detergency Using a calorimetric color difference meter (Nippon Denshoku Co., Ltd., trade name SE2000), the raw cloth before the soil adhesion (polyester tropical cloth), and the oil dirt soil cloth before and after the washing test The Z value was measured, and the washing rate was calculated from the following formula. A larger value of the cleaning rate means higher cleaning power.
Washing rate (%) = (Z value of the oily soiled cloth after washing−Z value of the oily soiled cloth before washing) / (Z value of the raw soiled dirt cloth−Z value of the oily soiled dirt cloth before washing) ) × 100
Then, the solid fat cleaning power was evaluated according to the following evaluation criteria using the average value of the cleaning rate calculated for the five oil-stained and dirty cloths as an index. When the average value of the cleaning rate is 20% or more, it is determined to be acceptable.
(Evaluation criteria)
○: The average value of the cleaning rate is more than 30%.
Δ: The average value of the cleaning rate is 20% or more and less than 30%.
X: The average value of the cleaning rate is less than 20%.

[Evaluation of wet spread on cloth]
0.3 mL of the liquid detergent was dropped onto the center of a wet artificial soil cloth (made by the Laundry Science Association) cut to 5 cm × 5 cm, and left for 10 minutes to measure the wet spread diameter. Using the measured value of the diameter as an index, wetting and spreading properties were evaluated according to the following evaluation criteria. When the wet spread diameter is 3.5 cm or more, it is determined to be acceptable.
(Evaluation criteria)
○: Wetting spread diameter is 4 cm or more.
Δ: Wetting spread diameter is 3.5 cm or more and less than 4 cm.
X: Wetting spread diameter is less than 3.5 cm.

From the results shown in Tables 1 and 2, the liquid detergents of Examples 1 to 18 to which the present invention was applied showed a high detergency for solid fats and had good wetting and spreading properties on cloth.
Example 19 is a comparative example containing neither the component (B) nor the component (B ′), and the solid fat cleaning power is inferior.
Example 20 is a comparative example in which the component (A) / component (B) exceeds 2, and the solid fat cleaning power is inferior.
Example 21 is a comparative example in which the component (A) / component (B) is smaller than 0.5, and the solid fat cleaning power is inferior.
Example 22 is a comparative example using the component (B ′) instead of the component (B). Solid fat cleaning power is inferior.
Examples 23 and 24 are comparative examples using the component (C ′) instead of the component (C), and have poor wettability to the cloth.
Example 25 is a comparative example which does not contain any of the component (C) and the component (C ′), and is poor in wetting and spreading to the fabric.

Claims (2)

(A) component: anionic surfactant,
(B) component: a semipolar surfactant, and (C) component: a compound represented by the following formula (1),
The liquid detergent composition for clothes whose mass ratio of (A) component / (B) component is 0.5-2.
_{^{R 11 -O - [(EO)}} m / (PO) n] -H ··· (1)
[Wherein R ¹¹ represents an alkyl group having 2 to 6 carbon atoms. m represents the average number of repetitions of EO, n represents the average number of repetitions of PO, m is a number from 0 to 5, n is a number from 0 to 5, and 1 ≦ m + n ≦ 5. EO represents an oxyethylene group, PO represents an oxypropylene group, and EO and PO may be mixed. ]   The liquid detergent composition for clothes according to claim 1, wherein the mass ratio of component (B) / component (C) is 0.5 or more.