JP5580036B2 - Liquid detergent composition for clothing - Google Patents

Description

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

  For example, Patent Documents 1 to 3 can be referred to for the technique of the garment cleaning agent using a nonionic surfactant having a large number of added moles of alkylene oxide as a main cleaning component. Moreover, the technique which uses a glycol ether type solvent for the washing | cleaning agent for clothes can refer patent document 4, for example.

Japanese Patent Laid-Open No. 2000-192099 JP 2003-238999 A JP 2009-155594 A Japanese Patent Application Laid-Open No. 08-231997

  In recent years, environmental awareness has increased, and there is a strong demand for the appearance of cleaning agents that have a low environmental impact. So-called concentrated type cleaning agents with higher cleaning component concentrations than conventional cleaning agents reduce the size of the cleaning agent itself, reduce the amount of container resin, reduce transportation costs, reduce waste after use, etc. It is thought that it is very effective for reducing.

  However, in a normal liquid detergent, there is a problem that if the surfactant concentration as a washing component is increased, thickening and gelation occur, and the usability is remarkably impaired. In particular, polyoxyalkylene alkyl ether type nonionic This occurs remarkably in cleaning agents containing a surfactant as a main component.

  As technologies for suppressing gelation, Patent Documents 1 and 2 show that a surfactant obtained by adding a polyalkylene oxide to a specific fatty acid lower alcohol ester is effective. The inhibitory effect is still inadequate, especially when pouring and washing into the detergent automatic inlet of the washing machine, gelation occurs suddenly when it comes into contact with the water injected into the automatic inlet, and a predetermined amount of water is poured into the washing tub. There is a problem that not only the detergent does not enter, but also a gel-like residue is generated at the automatic inlet. Furthermore, the detergency against lipophilic dirt such as sebum is low, and in particular, there is a demand for improvement in the detergency at the time of coating and washing that is applied directly to the dirt and washed. This is thought to be due to the relatively high number of moles of alkylene oxide added. Therefore, there is a need for a technique that is excellent in cleaning power against lipophilic soil such as sebum, particularly application cleaning power, and that does not cause gelation at an automatic detergent inlet. Patent Documents 1 to 4 are not sufficient as means for solving such problems.

  Accordingly, an object of the present invention is to improve the detergency against lipophilic dirt such as sebum in a detergent composition containing a fatty acid alkylene oxide addition type surfactant at a high concentration, and the problem of gelation at an automatic inlet. It is to provide a liquid detergent composition that does not cause odor.

In the present invention, (a) a compound of the following general formula (1) [hereinafter referred to as component (a)] is 30 to 70% by mass, (b) a glycol ether solvent of the following general formula (2) [hereinafter, (b 3) to 20% by mass of component)), (c) monohydric alcohol having 1 to 3 carbon atoms, and / or alkylene glycol having 2 or 3 carbon atoms [hereinafter referred to as component (c)] to 1 to 10% by mass. And a liquid detergent composition for clothing containing water.
R ¹ —COO— (AO) _m —R ² (1)
[Wherein, R ¹ is a hydrocarbon group having 7 to 21 carbon atoms, and R ² is a hydrogen atom or an alkyl group having 1 to 3 carbon atoms. A is an alkylene group having 2 carbon atoms and / or an alkylene group having 3 carbon atoms, m is an average added mole number of AO, and is a number of 10-30. ]
R ³ —O— (BO) _n —R ⁴ (2)
[In the formula, R ³ is a group selected from an alkyl group having 1 to 5 carbon atoms, a phenyl group, and a benzyl group, and R ⁴ is a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a phenyl group, and a benzyl group. Group. BO is an alkylene group having 2 carbon atoms and / or an alkylene group having 3 carbon atoms, n is the average added mole number of BO, and is a number from 1 to 15. ]

  According to the present invention, a liquid containing a fatty acid alkylene oxide addition type surfactant in a relatively high concentration, improved detergency against lipophilic dirt such as sebum, and does not cause a problem of gelation at an automatic inlet. A cleaning composition is provided.

<(A) component>
The component (a) of the present invention is a compound of the following general formula (1).
R ¹ —COO— (AO) _m —R ² (1)
[Wherein, R ¹ is a hydrocarbon group having 7 to 21 carbon atoms, and R ² is a hydrogen atom or an alkyl group having 1 to 3 carbon atoms. A is an alkylene group having 2 carbon atoms and / or an alkylene group having 3 carbon atoms, m is an average added mole number of AO, and is a number of 10-30. ]

In the formula, R ¹ preferably has 9 to 17 carbon atoms, more preferably 10 to 15 carbon atoms, and most preferably 11 to 13 carbon atoms. R ² is preferably a hydrogen atom, a methyl group or an ethyl group, and most preferably a methyl group. AO is an ethyleneoxy group and / or a propyleneoxy group, but it may also be a mixture Arukiren'oki sheet group ethyleneoxy groups and propyleneoxy groups are mixed. For mixed Arukiren'oki shea group preferably be respectively block addition in view of preventing gelation, propyleneoxy group is preferably addition forms to be added to the ester group side. m is preferably a number from 13 to 25, more preferably from 16 to 20.

In the present invention, the compound represented by the following general formula (1-1) is particularly preferable.
^{R 1 COO - [(PO)} m1 / (EO) m2] -R 2 (1-1)
[Wherein, R ¹ is a hydrocarbon group having 7 to 21 carbon atoms, and R ² is a hydrogen atom or an alkyl group having 1 to 3 carbon atoms. P is a propylene group, E is an ethylene group, m1 is the average added mole number of PO, m2 is the average added mole number of EO, m1 is 0 to 5, m2 is 10 to 25, and the sum of m1 and m2 is 10-30. / Indicates that PO and EO may be random or block. ]

In General Formula (1-1), R ¹ is preferably a hydrocarbon group having 9 to 17 carbon atoms, more preferably 10 to 15 carbon atoms, and still more preferably 11 to 13 carbon atoms. R ² is preferably a hydrogen atom, a methyl group, or an ethyl group, and most preferably a methyl group. m1 is preferably 0.3 to 5, more preferably 1 to 3, m2 is preferably 13 to 20, and the sum of m1 and m2 is m, as described above, 10 to 30; Preferably it is 13-25, More preferably, it is 16-20.

  From the viewpoint of preventing gelation, the compound represented by the general formula (1-1) is preferably a block adduct of PO and EO. In particular, after adding EO (1 to 9 mol), PO (0.3 ˜5 mol), and finally EO (1 to 16 mol) added compounds are preferred.

In the component (a) of the present invention, for example, propylene oxide and / or ethylene oxide (hereinafter, propylene oxide and ethylene oxide may be collectively referred to as alkylene oxide) and alcohol (R ² —OH) are ordered or simultaneously added. To produce an adduct, which is then produced by subjecting it to a fatty acid or a fatty acid ester, respectively, by esterification or transesterification, or by sequentially or simultaneously adding an alkylene oxide to the fatty acid to obtain an adduct. It can be obtained by reacting this with an alkyl halide. It can also be produced by a method in which an alkylene oxide is subjected to an addition reaction between an ester and an esterified product of fatty acid and alcohol (R ¹ COOR ² ) using a specific catalyst (see Japanese Patent Application Laid-Open No. 4-279552). it can.

  The liquid detergent composition for clothing of the present invention contains component (a) in an amount of 30 to 70% by mass, preferably 35 to 65% by mass, and more preferably 40 to 60% by mass.

<(B) component>
The component (b) of the present invention is a compound of the following general formula (2).
R ³ —O— (BO) _n —R ⁴ (2)
[In the formula, R ³ is a group selected from an alkyl group having 1 to 5 carbon atoms, a phenyl group, and a benzyl group, and R ⁴ is a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a phenyl group, and a benzyl group. Group. BO is an alkylene group having 2 carbon atoms and / or an alkylene group having 3 carbon atoms, n is the average added mole number of BO, and is a number from 1 to 15. ]

In the formula, R ³ is preferably a methyl group, an ethyl group, a propyl group, a butyl group, a phenyl group or a benzyl group, more preferably a butyl group, a phenyl group or a benzyl group, particularly preferably a phenyl group. R ⁴ is preferably a hydrogen atom. BO is an ethyleneoxy group and / or a propyleneoxy group, preferably an ethyleneoxy group, and n is a number of 1 to 10, preferably 1 to 5, more preferably 2 to 3.

  Specifically, diethylene glycol monomethyl ether, triethylene glycol monomethyl ether, diethylene glycol monoethyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monoethyl ether, tripropylene glycol monomethyl ether, diethylene glycol monobutyl ether, ethylene glycol monophenyl ether, diethylene glycol Examples thereof include monophenyl ether, triethylene glycol monophenyl ether, ethylene glycol monobenzyl ether, and diethylene glycol monobenzyl ether.

In the component (b) of the present invention, examples of the compound constituting the general formula (2) include compounds represented by the following general formula (2 ′).
R ³ —O— (BO) _{n ′} —R ⁴ (2 ′)
[In the formula, R ³ is a group selected from an alkyl group having 1 to 5 carbon atoms, a phenyl group, and a benzyl group, and R ⁴ is a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a phenyl group, and a benzyl group. Group. BO is an alkylene group having 2 carbon atoms and / or an alkylene group having 3 carbon atoms, and n ′ is the added mole number of BO and is an integer of 1-10. ]

In the present invention, in the general formula (2 ′), R ³ is a butyl group, a phenyl group or a benzyl group, n ′ is an integer of 1 to 5, BO is an oxyethylene group, and R ⁴ is The compound which is a hydrogen atom is preferably 80% by mass or more, more preferably 90% by mass or more, and particularly 100% by mass of the component (b). For example, when 2 mol of ethylene oxide is added to 1 mol of ethylene glycol monophenyl ether, 80% by mass or more of the compound group in which n ′ is 1 to 5 in the component (b) is included. In addition, as these compounds, the single compound which does not have distribution of ethyleneoxy group or propyleneoxy group is marketed, and you may use it.

  The liquid detergent composition for clothing of the present invention contains the component (b) in an amount of 3 to 20% by mass, preferably 5 to 15% by mass, more preferably 5 to 10% by mass.

<(C) component>
The component (c) of the present invention is a compound selected from monohydric alcohols having 1 to 3 carbon atoms and alkylene glycols having 2 or 3 carbon atoms, and specifically includes ethanol, propanol, ethylene glycol, and propylene glycol. It is done. In the present invention, the combination of the monohydric alcohol and the alkylene glycol as the component (c) is effective for preventing gelation, and the mass ratio of monohydric alcohol / alkylene glycol is preferably 1/10 to 10. / 1, more preferably 1/3 to 5/1, most preferably 1/1 to 3/1.

  The liquid detergent composition for clothing of the present invention contains 1 to 10% by mass, preferably 2 to 8% by mass of the component (c). Moreover, the liquid detergent composition for clothes of this invention contains (b) component and (c) component in total, Preferably it is 6 mass%-25 mass%, More preferably, it contains 10-20 mass%. The mass ratio of the component (b) / (c) is preferably 0.5 / 1 to 10/1, more preferably 1/1 to 5/1.

<Other ingredients>
In the present invention, although it is optional, for the purpose of further improving the gelation suppressing effect, as component (d), alkylbenzenesulfonic acid and / or a salt thereof, which may be substituted by 1 to 3 alkyl groups having 1 to 3 carbon atoms. It is preferable to contain. These compounds are known as hydrotropes and are mainly applied to cleaning agents containing a large amount of anionic surfactants. However, in the cleaning agents in which the nonionic surfactant of the present invention is the main cleaning component, gels are used. The effect on crystallization is seen. As specific compounds, compounds selected from toluene sulfonic acid, xylene sulfonic acid, cumene sulfonic acid and salts thereof such as sodium salt, potassium salt or magnesium salt are preferable, and in particular, p-toluenesulfonic acid and its salt are used. It is good.

  The content of the component (d) is preferably 1 to 10% by mass, more preferably 1.5 to 7% by mass, and further preferably 2 to 4% by mass, considering the acid structure in the composition of the present invention. . The total content of the component (b), the component (c), and the component (d) is preferably 7 to 25% by mass, more preferably 7 to 20% by mass in the composition, and (d) The mass ratio of component / [component (b) + component (c)] is preferably 0.01 to 0.6, more preferably 0.1 to 0.4. This mass ratio is also calculated by the amount that the component (d) is regarded as an acid structure.

In the present invention, component (a) is the main cleaning component, and other surfactants may reduce the effects of the present invention, so care must be taken when used. As surfactants other than the component (a) that can be used [hereinafter referred to as component (e)],
An alkylbenzenesulfonic acid (salt) having an alkyl group having 10 to 15 carbon atoms, an alkyl sulfate ester salt having 10 to 16 carbon atoms, an alkyl group having 10 to 16 carbon atoms and a polyoxyethylene group having an average addition mole number of 1 to 4; A polyoxyethylene alkyl ether sulfate ester salt, an anionic surfactant selected from saturated or unsaturated fatty acid having 10 to 18 carbon atoms or a salt thereof (hereinafter referred to as (e-1) component),
An alkyl glycoside having an alkyl group having 8 to 16 carbon atoms and an average degree of glucose condensation of 1 to 2, an amidated product of a fatty acid having 10 to 16 carbon atoms and monoethanolamine or diethanolamine, or an ethylene oxide adduct thereof, alkyl Nonionic interface selected from N-alkyl-N, N-dimethylamine oxide having 8 to 16 carbon atoms and N-alkanoylaminopropyl-N, N-dimethylamine oxide having 8 to 16 carbon atoms in alkanoyl group Activator [hereinafter referred to as (e-2) component],
Dialkyl (each having 8 to 14 carbon atoms) dimethylammonium salt, monoalkyl (8 to 14 carbon atoms) dimethylbenzylammonium salt, N-alkanoylaminopropyl-N, N-dimethylamine having an alkanoyl group having 8 to 18 carbon atoms, Alternatively, a cationic surfactant selected from an acid salt thereof or a quaternized product thereof (hereinafter referred to as (e-3) component),
N-alkyl (carbon number 8 to 16) -N, N-dimethyl-N-carboxymethylammonium betaine, N-alkyl (carbon number 8 to 16) -N, N-dimethyl-N- (2-hydroxysulfopropyl) Ammonium betaine, N-alkanoylaminopropyl-N, alkanoyl group having 8 to 16 carbon atoms, N-dimethyl-N-carboxymethylammonium betaine, N-alkanoylaminopropyl group having alkanoyl group having 8 to 16 carbon atoms Amphoteric surfactant selected from N, N-dimethyl-N- (2-hydroxysulfopropyl) ammonium betaine (hereinafter referred to as component (e-4))
Can be mentioned.

  Examples of the salt of component (e-1) include sodium salts, potassium salts, magnesium salts, and alkanolamine salts. Examples of the salt of the component (e-3) include hydrochloride, sulfate, alkyl sulfate ester having 1 or 2 carbon atoms, and benzenesulfonate which may be substituted with an alkyl group having 1 to 3 carbon atoms. It is done.

  In the present invention, the component (e-1) is preferable from the viewpoint of detergency, and a C10-14 fatty acid or a salt thereof is particularly preferable. However, since the component (e) generally has a tendency to gel when contained in a large amount in the composition, when used, it is regarded as an acid structure in the composition and is preferably 20% by mass or less, preferably 10% by mass or less. Particularly preferably, 5% by mass or less is suitable. Further, the lower limit when used is preferably 2% by mass or more, more preferably 1% by mass or more, considering the acid structure.

  Although it is optional in the present invention, a chelating agent [hereinafter referred to as component (f)] can be contained for the purpose of further improving the cleaning effect. (F) Component chelating agents include aminopolyethylene such as nitrilotriacetic acid, iminodiacetic acid, ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, glycol etherdiaminetetraacetic acid, hydroxyethyliminodiacetic acid, triethylenetetraaminehexaacetic acid, and diencoric acid. Organic acids such as acetic acid or salts thereof, diglycolic acid, oxydisuccinic acid, carboxymethyloxysuccinic acid, citric acid, lactic acid, tartaric acid, oxalic acid, malic acid, oxydisuccinic acid, gluconic acid, carboxymethylsuccinic acid, carboxymethyltartaric acid Or salts thereof, aminotri (methylenephosphonic acid), 1-hydroxyethylidene-1,1-diphosphonic acid, ethylenediaminetetra (methylenephosphonic acid), diethylenetriaminepenta (methylenephosphonic acid), alkali gold thereof Or lower amine salts, and the like.

  The content of the component (f) in the composition is preferably 0.1 to 5% by mass, more preferably 0.1 to 4% by mass, and still more preferably 0.1 to 3% by mass when regarded as the acid type. %.

Furthermore, although it is arbitrary, the component shown to following (i)-(x) can be mix | blended with the liquid cleaning composition of this invention in the grade which does not impair the effect of this invention.
(I) Polyacrylic acid, polymaleic acid, carboxymethyl cellulose, polyethylene glycol having a weight average molecular weight of 5000 or more, maleic anhydride-diisobutylene copolymer, maleic anhydride-methyl vinyl ether copolymer, maleic anhydride-vinyl acetate copolymer Recontamination preventing agents such as polymers, naphthalene sulfonate formalin condensates, and polymers described in claims 1 to 21 (page 1, column 3, line 5 to page 3, column 4, line 14) of JP-A-59-62614; Dispersant (ii) Color transfer inhibitor such as polyvinylpyrrolidone (iii) Bleaching agent such as hydrogen peroxide, sodium percarbonate or sodium perborate (iv) Tetraacetylethylenediamine, general formula (I- Bleach activators such as bleach activators represented by 2) to (I-7) (v) cellulase, amylase Enzymes such as pectinase, protease, lipase (vi) Boron compounds, calcium ion sources (calcium ion supply compounds), bihydroxy compounds, formic acid and other enzyme stabilizers (vii) fluorescent dyes such as Tinopearl CBS (trade name, Ciba Fluorescent dyes (viii) butylhydroxytoluene, distyrenated cresol, sodium sulfite and sodium bisulfite, etc., which are commercially available as Specialty Chemicals and Whitetex SA (trade name, manufactured by Sumitomo Chemical Co.) Water-immiscible organics such as paraffins such as decane, dodecane and tridecane, olefins such as decene and dodecene, alkyl halides such as methylene chloride and 1,1,1-trichloroethane, and terpenes such as D-limonene solvent.
(X) Other antifoaming agents such as pigments, fragrances, antibacterial preservatives, and silicones

  Although the density | concentration as a parameter | index at the time of mix | blending the said arbitrary component in the liquid detergent composition of this invention below is shown, it adjusts suitably to such an extent that this effect is not impaired, and excludes when it is not suitable for a mixing | blending. The content of the anti-staining agent and dispersant (i) is preferably 0.01 to 10% by mass. The content of the color transfer inhibitor (ii) is preferably 0.01 to 10% by mass. The content of the bleaching agent (iii) is preferably 0.01 to 10% by mass. The content of the bleach activator (vi) is preferably 0.01 to 10% by mass. The content of the enzyme (v) is preferably 0.001 to 2% by mass. The content of the enzyme stabilizer (vi) is preferably 0.001 to 2% by mass. The content of the fluorescent dye (vii) is preferably 0.001 to 1% by mass. The content of the antioxidant (viii) is preferably 0.01 to 2% by mass. The water-immiscible organic solvent (≡) is preferably 0.001 to 2% by mass. The other components of (≡) can be blended at a known concentration, for example. In addition, since (ix) influences stability among the said arbitrary components, special attention is required for its blending.

  The liquid detergent composition of the present invention is measured at 20 ° C. described in 8.3 of JIS K3362: 1998. The pH of the composition is preferably 5 to 9 in terms of stability, and more preferably 5.5 to 8. Moreover, 5-11 are preferable from the point of washing | cleaning performance and stability, as for pH of 0.05 mass% aqueous solution, 5-10 are more preferable, and 6-9 are still more preferable. Examples of the pH adjuster include inorganic acids such as hydrochloric acid, sulfuric acid, and phosphoric acid; organic acids such as polyvalent carboxylic acids and hydroxycarboxylic acids; sodium hydroxide, potassium hydroxide, ammonia, and the like. Therefore, an organic acid is preferable. Specific examples of the organic acid include polyvalent carboxylic acids such as succinic acid, maleic acid, fumaric acid, or salts thereof; hydroxy such as citric acid, malic acid, glycolic acid, p-hydroxybenzoic acid, or salts thereof. Examples thereof include carboxylic acids, and citric acid or a salt thereof is particularly preferable. A pH adjuster can be used 1 type or in mixture of 2 or more types. Specifically, the content of the pH adjuster is, for example, preferably 0.05 to 3% by mass, and more preferably 0.1 to 1.5% by mass in the liquid detergent composition. By being above the lower limit of the range, it becomes easy to keep the pH constant. On the other hand, by being below the upper limit, a pH adjusting effect for adjusting the pH to 5 to 11 is sufficiently obtained, which is economically advantageous.

  The viscosity at 20 ° C. of the liquid detergent composition of the present invention is preferably 10 to 500 mPa · s, more preferably 50 to 400 mPa · s, and still more preferably 100 to 300 mPa · s in terms of ease of handling. It is preferable to adjust so that it may become such a range with (b) component, (c) component, and (d) component. In the present invention, the viscosity is measured with a B-type viscometer. Select a rotor that matches the viscosity. It rotates at a rotational speed of 60 r / min, and the viscosity 60 seconds after the start of rotation is taken as the viscosity of the liquid detergent composition or diluent.

  The liquid detergent composition of the present invention contains water and is in the form of a liquid composition in which the above-mentioned components are dissolved / emulsified / dispersed in water, and an aqueous solution in which the solution is uniformly dissolved is particularly preferable. As the water, ion-exchanged water or distilled water from which a metal component dissolved in a trace amount is removed, or hypo-sterilized water containing 0.1 to 10 ppm of chlorine can be suitably used. From the viewpoint of solubility during dilution with water, the content of water is preferably 10% by mass or more, more preferably 15% by mass or more, and particularly preferably 20% by mass or more, preferably from the viewpoint of storage stability. Is 30% by mass or less, more preferably 28% by mass or less.

  The liquid detergent composition of the present invention is for clothing, and can include various textile products such as clothing and bedding.

  The following blending components shown in Table 1 are mixed to prepare liquid detergent compositions of Examples and Comparative Examples. Each composition was used for the following evaluations and the results are shown in Table 1.

<Compounding ingredients>
A-1; In the general formula (1-1), R ¹ is an alkyl group having 11 carbon atoms, m1 is 2, m2 is 18, R ² is a methyl group, R ¹ COO is EO, A compound in which PO and EO are block-bonded in this order (a compound obtained by adding 9 mol of ethylene oxide to 1 mol of R ¹ COOCH ₃ , adding 2 mol of propylene oxide, and adding 9 mol of ethylene oxide again)
A-2; a compound in which R ¹ is an alkyl group having 11 carbon atoms, m1 is 3, m2 is 17, and R ² is a methyl group in the general formula (1-1) (addition of PO and EO) Order is random)
B-1; diethylene glycol monobutyl ether; b-2; polyethylene glycol monophenyl ether (ethylene glycol monophenyl ether added with 2 mol of ethylene glycol, the average number of added moles of ethyleneoxy group is 3, general formula (2 Compound in which n ′ is 1 to 5 in 90% by mass or more)
B-3; diethylene glycol monobenzyl ether c-1; ethanol c-2; propylene glycol d-1; sodium p-toluenesulfonate (however, the numerical values in Table 1 are the concentrations of the acid forms)
E-1; sodium laurate (however, the numerical values in Table 1 are the concentration of the acid form)
F-1; trisodium citrate (however, the numerical values in Table 1 are the concentration of the acid form)
PH adjuster: monoethanolamine and 0.1 N sulfuric acid aqueous solution (used in such an amount that the composition has the pH shown in the table (indicated as “adjusted amount” in the table))

<Cleaning performance>
(Collar stain specimen)
Cut and collect the collar of cotton / polyester blended shirts worn for 3 days, divide the collar pieces into 5 groups according to the degree of soiling, and use the collars of the 2nd group from the most soiled side for cleaning evaluation.

(Cleaning conditions)
Put 40L of tap water into the washing tub of a two-tank washing machine (Toshiba Galaxy 3.6), and put 1.4kg cotton underwear and 0.6kg cotton / polyester unweared shirt . 10 g of the liquid detergent composition shown in Table 1 is added. Prepare a piece of 30cm x 30cm cotton cloth with 5 pieces of collar for cleaning evaluation, and apply the liquid detergent composition in the table (same composition as that in the washing machine) to 1 piece of collar. Apply 3 mL. Five pieces of the collar pieces thus obtained are put in a washing tub and washed normally for 10 minutes. Then dehydrate for 1 minute and rinse with running water at a rate of 15 L / min for 8 minutes. Then dehydrate for 5 minutes and let it air dry indoors. After drying, the cleaning performance is determined according to the following criteria. The average value of 5 collar pieces is shown in Table 1.
Judgment criteria;
1: Level where dirt is removed and recognized as being equal to white cloth 2: Level where dirt remains slightly but not noticeable compared to white cloth 3: Level where dirt remains clearly compared with white cloth 4: Level of concern Unsatisfactory level with dirt remaining and slightly dirty compared to unwashed collar piece 5: Level with little dirt removed and recognized as equivalent to unwashed collar piece

<Anti-gelling ability at automatic inlet>
The liquid detergent composition shown in Table 1 is introduced into the detergent inlet of a fully automatic washing machine (NA-F60K2 type manufactured by Matsushita Electric Industrial Co., Ltd.), and 30 L of water (hardness 4 ° DH) at 5 ° C. is added to the detergent inlet. Pour into the washing tub through. Thereafter, the state of the inlet is observed and determined as follows. This operation is repeated 5 times to obtain a total of 5 evaluation points, and the anti-gelling ability is evaluated. The results are shown in Table 1.
Criteria 0: No detergent remains at the detergent inlet 1: No detergent remains at the detergent inlet 2: Detergent remains at the detergent inlet

Claims (2)

(A) 30 to 70% by mass of a compound of the following general formula (1-1) , (b) 3 to 20% by mass of a glycol ether solvent of the following general formula (2), and (c) having 1 to 3 carbon atoms. A liquid detergent composition for clothing containing 1 to 10% by mass of monohydric alcohol and / or alkylene glycol having 2 or 3 carbon atoms and water.
^{R 1 COO - [(PO)} m1 / (EO) m2] -R 2 (1-1)
[Wherein, R ¹ is a hydrocarbon group having 7 to 21 carbon atoms, and R ² is a hydrogen atom or an alkyl group having 1 to 3 carbon atoms. P is a propylene group, E is an ethylene group, m1 is the average added mole number of PO, m2 is the average added mole number of EO, m1 is 0.3 to 5, m2 is 10 to 25, and m1 and m2 The total is 13-30. / Indicates that PO and EO may be random or block. ]
R ³ —O— (BO) _n —R ⁴ (2)
[In the formula, R ³ is a group selected from an alkyl group having 1 to 5 carbon atoms, a phenyl group, and a benzyl group, and R ⁴ is a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, a phenyl group, and a benzyl group. Group. BO is an alkylene group having 2 carbon atoms and / or an alkylene group having 3 carbon atoms, n is the average added mole number of BO, and is a number from 1 to 15. ] (D) Liquid detergent composition for clothes of Claim 1 which contains 1-10 mass% of alkylbenzenesulfonic acid and / or its salt in which 1-3 alkyl groups having 1 to 3 carbon atoms may be substituted. .