JP2002256286A - Liquid cleanser composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid composition having high cleansing effect and the durability, and suitable for cleansing tableware. SOLUTION: This liquid cleanser composition with a viscosity of 300-1,000 mPa.s at 20 deg.C comprises (a) 10-55 mass% of a polyoxyalkylene alkyl ether sulfate salt having 8-16C alkyl or alkenyl group and oxyalkylene group with the average addition number of moles of 1-6, (b) 1-20 mass% of an amphoteric surfactant of the general formula 1 or 2 (R<1> to R<9> are each an alkyl, alkylene or the like; A and B are each COO, CONH or the like; D is COO<-> , SO3 <-> or the like; and (a) and (b) are each 0 or 1), (c) 0.1-2 mass% of MgO, (d) 0.05-2 mass% of a polyethylene glycol disulfate salt, (e) 1-15 mass% of a water- miscible organic solvent and (f) 1-10 mass% of a benzenesulfonic acid substituted with 1 to 3 1-3C alkyl group (s); wherein the total surfactant accounts for 30-60 mass% of the comosition.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid detergent composition, and more particularly, to a method for scrubbing an object to be cleaned by using a flexible absorbent body directly impregnated with a cleaning liquid and a small amount of water. The present invention relates to a liquid detergent composition having a long-lasting effect and a detergency, which is suitable for washing dishes.

[0002]

2. Description of the Related Art As consumers are becoming more and more conscious of the environment, efforts are being made to reduce the amount of waste in detergents, and to increase the concentration of compositions. Techniques have been developed to reduce the amount of waste by reducing the amount of cleaning agent used at one time and reducing the size of containers.

[0003] In addition to the cleaning performance, the cleaning agent is required to have a long-lasting detergency. For example, when washing dishes by hand washing, it is preferable that the number of dishes that can be washed by one impregnation after impregnating the flexible absorber with a detergent is larger. Regarding the dishwashing method, use an aqueous solution obtained by diluting a cleaning agent with water, and rub and wash with a flexible absorber such as a sponge or towel while contacting an object to be washed such as tableware, or a method using a washing solution and a small amount of water. There is a method of scrubbing tableware and the like using a flexible absorbent material directly impregnated with, and the latter method is generally often used.

Japanese Patent Publication No. Hei 11-503377 discloses that a surfactant composition which can be densified with a small amount of water is contained in an adsorbent such as a sponge, and then the adsorbent and the surfactant composition are treated with water. A washing method has been disclosed in which the surfactant composition is made denser in the adsorption carrier to prolong the release of the surfactant outflow. However, this technology has a long-lasting detergency for mild stains, but it does not provide a satisfactory cleaning effect for dishes with stubborn oil stains. Is also significantly reduced. As a method for improving the cleaning effect, it is conceivable to increase the concentration of a surfactant. However, if this technique is applied to the above-described technique, the composition may be thickened or gelled, and a problem may occur in storage stability.

[0005] On the other hand, it has been already known to use a sulfated product of a polyhydric alcohol alkylene oxide adduct in a liquid detergent. JP-A-1-40598 discloses the use of an alkylene oxide adduct sulfate as a means for suppressing the hydrolysis of polyoxyalkylene alkyl ether sulfate in an acidic detergent. Further, Japanese Patent Application Laid-Open Nos.
JP 17089 discloses that the above compounds are useful for stabilizing opacifying agents. JP-A-64-405
Japanese Patent Publication No. 98 describes a dishwashing detergent which has a mild action on the skin and has no odor deterioration. However, the compositions disclosed therein satisfy the cleaning effect and the sustainability of the cleaning power in a method of rubbing dishes and the like using a flexible absorber directly impregnated with a cleaning liquid and a small amount of water. It does not do.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a method for rubbing an object to be cleaned by using a flexible absorbent material which has excellent storage stability and is directly impregnated with a cleaning solution and a small amount of water, and has a high cleaning effect and a high detergency. It is an object of the present invention to provide a liquid detergent composition having a long lasting effect.

[0007]

SUMMARY OF THE INVENTION The present invention relates to (a) a polyoxyalkylene alkyl ether sulfate having an alkyl or alkenyl group having 8 to 16 carbon atoms and an oxyalkylene group having an average addition mole number of 1 to 6; 10-5 salt
5% by mass, (b) 1 to 20 amphoteric surfactants selected from the compound of the following general formula (1) and the compound of the general formula (2)
Mass%, (c) 0.1 to 2 mass% of magnesium,
(D) 0.1 g of polyethylene glycol disulfate salt.
0 to 2% by mass, (e) 1 to 15% by mass of a water-soluble organic solvent, and (f) 1 to 10% by mass of benzenesulfonic acid or a salt thereof in which 1 to 3 alkyl groups having 1 to 3 carbon atoms are substituted. %, The total surfactant amount is 30 to 60% by mass,
Provided is a liquid detergent composition having a viscosity at 20 ° C of 300 to 1000 mPa · s.

[0008]

Embedded image

Wherein R ¹ is a straight-chain alkyl group or alkenyl group having 8 to 16 carbon atoms, and R ³ and R ⁴ are each a group having 1 to 3 carbon atoms.
Is an alkyl group or a hydroxyalkyl group. R ² is an alkylene group having 1 to 5 carbon atoms. A is -COO-,
A is a group selected from —CONH—, —OCO—, —NHCO—, and —O—, and a is a number of 0 or 1. ]

[0010]

Embedded image

Wherein R ⁵ is an alkyl or alkenyl group having 9 to 23 carbon atoms, and R ⁶ is an alkylene group having 1 to ⁶ carbon atoms. B represents -COO-, -CONH-, -O
CO-, -NHCO-, a group selected from -O-,
b is a number of 0 or 1. R ⁷ and R ⁸ are an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group, and R ⁹ is an alkylene group having 1 to 5 carbon atoms which may be substituted with a hydroxy group. D is _{^{-COO -, -SO 3 -, -OSO}} 3 -
Is a group selected from ].

In the present invention, the viscosity of the composition is measured as follows. First, B made by TOKIMEC.INC
A viscometer model BM equipped with a rotor of rotor number No. 3 is prepared. The sample (composition) is filled in a tall beaker and adjusted to 20 ° C. in a 20 ° C. constant temperature bath. The sample prepared at a constant temperature is set in a viscometer. The rotational speed of the rotor is set to 30 r / m, and the viscosity 60 seconds after the start of the rotation is defined as the viscosity of the present invention.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, an alkyl or alkenyl group having 8 to 16 carbon atoms, preferably 10 to 14 carbon atoms, and an average number of added moles of 1 to 6, preferably 1 to 3 mol, particularly preferably 1 to 1 mol. A polyoxyalkylene alkyl ether sulfate having 0.5 to 3 moles of an added oxyalkylene group, preferably an oxyethylene group [hereinafter, referred to as a "sulfuric acid ester";
(Referred to as component (a)). Examples of the salt include a sodium salt, a potassium salt, a magnesium salt, and an alkanolamine salt. Particularly, a sodium salt, a potassium salt, and a magnesium salt are preferable from the viewpoint of viscosity.

The component (a) of the present invention preferably contains a branched alkyl group, and the weight ratio of the polyoxyalkylene branched alkyl ether sulfate to the total polyoxyalkylene alkyl ether sulfate is 20 to 70. % By mass, and more preferably 20 to 60% by mass, in order to achieve a cleaning effect and a desired viscosity. Such a component (a) can be produced using an alcohol obtained by hydroformylating a linear 1-alkene as a raw material. Here, the hydroformylation is a method in which carbon monoxide is added to linear 1-alkene using a carbonyl complex such as iron, cobalt or nickel as a catalyst to obtain an alcohol. The resulting alcohol is obtained. The polyoxyalkylene alkyl ether sulfate further adds an alkylene oxide, preferably propylene oxide (hereinafter, referred to as PO) or ethylene oxide (hereinafter, referred to as EO), more preferably EO to such an alcohol, Further, it can be obtained by sulfated with sulfur trioxide or chlorosulfonic acid and neutralized with an alkali agent. The average number of moles added is 1.5-3.
0, more preferably 1.6 to 3.0, especially 2.0 to 3.0 is preferable for achieving the cleaning performance and the target viscosity. As the alkali agent used for neutralization, sodium hydroxide, potassium hydroxide, magnesium hydroxide, sodium carbonate, potassium carbonate, and magnesium carbonate are preferable, and sodium hydroxide, potassium hydroxide, and magnesium hydroxide are more preferable.

The composition of the present invention contains one or more amphoteric surfactants (hereinafter, referred to as component (b)) selected from the compounds represented by the following general formulas (1) and (2).

[0016]

Embedded image

Wherein R ¹ is a straight-chain alkyl or alkenyl group having 8 to 16, preferably 10 to 16 and particularly preferably 10 to 14 carbon atoms, and R ³ and R ⁴ are each a group having 1 to 3 carbon atoms. Is an alkyl group or a hydroxyalkyl group. R ² is an alkylene group having 1 to 5, preferably 2 or 3, carbon atoms. A represents -COO-, -CONH-, -OCO-, -N
A group selected from HCO- and -O-, and a is 0 or 1, preferably 1. ]

[0018]

Embedded image

[Wherein: R^FiveHas 9 to 23 carbon atoms, preferably
Represents an alkyl group of 9 to 17, particularly preferably 10 to 16, or
Is an alkenyl group, and R⁶Has 1 to 6 carbon atoms, preferably
Is 1 to 4, particularly preferably 2 or 3, alkylene groups
You. B is -COO-, -CONH-, -OCO-, -N
A group selected from HCO- and -O-, wherein b is 0 or
It is 1, preferably 0. R⁷, R⁸Has 1 to 3 carbon atoms
Alkyl or hydroxyalkyl groups, preferably methyl
R, ethyl or hydroxyethyl; ⁹Is
1 to 5 carbon atoms which may be substituted with a hydroxy group, preferably
Or 1 to 3 alkylene groups. D is -COO^-,
-SO_Three ^-, -OSO_Three ^-A group selected from
O_Three ^-Is good for adjusting to the desired viscosity. ].

The composition of the present invention contains magnesium (hereinafter, referred to as component (c)) for the purpose of further improving the cleaning effect. Magnesium is blended as a counter ion of a surfactant or as a salt or hydroxide.
Specifically preferred compounds are magnesium sulfate, magnesium chloride and magnesium hydroxide, as well as the component (a), the component (d) or the component (f) described later, wherein magnesium is a counter ion. Magnesium is present in the system as a salt or ion, but is preferably dissolved and ionized. The content of magnesium in the composition can be measured by an atomic absorption method or the like.

The composition of the present invention contains polyethylene glycol disulfate (hereinafter referred to as component (d)). The molecular weight is 300 to 300 as a weight average molecular weight.
0, more preferably 500 to 2500. Examples of the salt include a sodium salt, a potassium salt, a magnesium salt, and an alkanolamine salt. Particularly, a sodium salt, a potassium salt, and a magnesium salt are preferable from the viewpoint of viscosity. Here, the molecular weight of the component (d) is determined by gel permeation chromatography using polyethylene glycol as a standard substance.

The component (d) used in the present invention is obtained by sulfating polyethylene glycol with a sulfonating agent such as sulfur trioxide or chlorosulfonic acid, and then adding sodium hydroxide, potassium hydroxide, magnesium hydroxide, sodium carbonate, carbonate It can be obtained by neutralizing with potassium, magnesium carbonate, preferably sodium hydroxide, potassium hydroxide, magnesium hydroxide. Further, in the production of the component (a), a predetermined amount of polyethylene glycol is mixed with the alkylene oxide adduct of alcohol, and the mixture is simultaneously sulfated with sulfur trioxide or chlorosulfonic acid.
Polyoxyalkylene alkyl ether sulfate and polyethylene glycol disulfate may be obtained at the same time. In this case, the concentration of the finally obtained polyethylene glycol disulfate can be adjusted by adjusting the amount of water at the time of adding the alkylene oxide to the alcohol.

The composition of the present invention contains a water-soluble organic solvent (hereinafter, referred to as component (e)). As the component (e), (e1) a monohydric alcohol having 1 to 5 carbon atoms, (e2)
A polyhydric alcohol having 4 to 12 carbon atoms, (e3) a compound represented by the following formula (3), (e4) a compound represented by the following formula (4), (e5) a compound represented by the following formula ( 5)
The compound represented by these is mentioned.

[0024]

Embedded image

[In the formula, R ¹⁰ and R ¹¹ each represent a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a phenyl group or a benzyl group, and when both R ¹⁰ and R ¹¹ are hydrogen atoms, except. s represents a number from 0 to 10, and t represents a number from 0 to 10, except when both s and t are 0. R ¹² and R ¹³ represent an alkyl group having 1 to 3 carbon atoms. R ¹⁴ represents an alkyl group having 1 to 8 carbon atoms. ].

The monohydric alcohol having 2 to 5 carbon atoms of (e1) is generally ethanol, propyl alcohol,
Isopropyl alcohol. By incorporating these lower alcohols, the stability of the system at low temperatures can be further improved.

The polyhydric alcohol having 4 to 12 carbon atoms (e2) includes isoprene glycol, 2,2,4-trimethyl-1,3-pentanediol, 1,8-octanediol and 1,9-nonanediol. , Ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, glycerin and the like.

The compound (e3) has a carbon number of 1 to ¹⁰ when R ¹⁰ and R ¹¹ are alkyl groups in the general formula (3).
4 is particularly preferred. Further, in the general formula (3), EO and P
The average number of moles of O, s and t, are each a number from 0 to 10 (except when both s and t are 0),
The order of addition is not particularly limited, and may be random addition. Specific examples of the compound (e3) include ethylene glycol monobutyl ether, dipropylene glycol dimethyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, propylene glycol monomethyl ether, propylene glycol monobutyl ether, propylene glycol monoethyl ether, propylene glycol dimethyl ether, Polyoxyethylene (p = 2
3) polyoxypropylene (p = 2 to 3) glycol dimethyl ether (p indicates the average number of moles added), polyoxyethylene (p = 3) glycol phenyl ether,
Phenyl carbitol, phenyl cellosolve, benzyl carbitol and the like can be mentioned. Among these, propylene glycol monomethyl ether, diethylene glycol monobutyl ether, and polyoxyethylene (p = 1 to 4) glycol phenyl ether are preferred from the viewpoints of detergency and usability.

The compound of (e4) includes 1,3
-Dimethyl-2-imidazolidinone, 1,3-diethyl-2-imidazolidinone are exemplified as suitable;
Examples of the compound (e5) include an alkyl glyceryl ether compound, and a compound in which R ¹⁴ is an alkyl group having 3 to 8 carbon atoms.

Of these, the water-soluble organic solvents (e1), (e2), (e3) and (e5) are preferred in order to satisfy the properties of the present invention. In particular, ethanol, isopropyl alcohol, ethylene glycol, propylene glycol, Diethylene glycol, dipropylene glycol,
A water-soluble solvent selected from glycerin, isoprene glycol, propylene glycol monomethyl ether, propylene glycol monoethyl ether, pentyl glyceryl ether and octyl glyceryl ether is preferred, and ethanol and propylene glycol are most preferred.

The composition of the present invention contains benzenesulfonic acid or a salt thereof in which 1 to 3 alkyl groups having 1 to 3 carbon atoms are substituted (hereinafter, referred to as component (f)). More specific preferred compounds include toluenesulfonic acid, xylenesulfonic acid, cumenesulfonic acid, and sodium, potassium or magnesium salts thereof, and p-toluenesulfonic acid is particularly preferable.

(Liquid detergent composition) The composition of the present invention contains the component (a) in an amount of 10 to 55% by mass, preferably 20 to 50% by mass.
%, Particularly preferably 25 to 45% by mass, and the component (b) 1 to 20% by mass, preferably 3 to 15% by mass, particularly preferably 5 to 10% by mass. Also, [(b) component] /
[(A) component] has a mass ratio of 20/1 to 1 from the viewpoint of cleaning effect
/ 1, more preferably 15/1 to 2/1. Further, the composition of the present invention contains the component (c) in an amount of 0.1 to 2% by mass, preferably 0.1 to 1% by mass. Furthermore, the composition of the present invention has a total surfactant content of 30 to 60% by mass, preferably 3% by mass.
0 to 55% by mass, in particular 35 to 50% by mass,
It is important to get excellent cleaning effect.

Further, in order to adjust the viscosity of the composition, to improve the storage stability and to satisfy the detergency of the detergency,
The composition of the present invention contains the above components (d), (e) and (f). The content of the component (d) is 0.05
To 2% by mass, preferably 0.1 to 1.5% by mass, (e)
The content of the component is 1 to 15% by mass, preferably 2 to 10% by mass, particularly preferably 5 to 10% by mass, and the content of the component (f) is 1 to 10% by mass, preferably 2 to 8% by mass. Yes, and most preferably, the content of ethanol of the component (e) is 3% by mass or less.

The composition of the present invention is in the form of an aqueous solution in which the above components are dissolved in water, and the content of water is 20 to 60% by mass, preferably 30 to 60% by mass, more preferably 40 to 60% by mass.
To 60% by mass, particularly preferably 45 to 55% by mass. Further, in order to obtain a high detergency and a long-lasting cleaning effect, the viscosity of the composition at 20 ° C. is 300 to 1000 m.
Pa · s, preferably 300 to 900 mPa · s.

The composition of the present invention preferably further contains a nonionic surfactant for the purpose of further improving the cleaning effect. As the nonionic surfactant, a compound represented by the following general formula (6) and / or the general formula (7) is preferred from the viewpoint of adjusting the cleaning effect and the intended viscosity. ^{R 15 -O- (R 16 O)} c -H (6) wherein, R ¹⁵ is 8 to 18 carbon atoms, preferably 10 to 1
R ¹⁶ is an alkylene group having 2 or 3 carbon atoms, preferably an ethylene group. c represents a number of 3 to 20, preferably 4 to 15, and particularly preferably 5 to 10. R ^17- (OR ¹⁸ ) _{d Ge} (7) wherein R ¹⁷ is a straight-chain carbon having 8 to 16, preferably 10 carbon atoms.
To 16, particularly preferably 10 to 14 alkyl groups, R ¹⁸
Is an alkylene group having 2 to 4 carbon atoms, preferably an ethylene group or a propylene group, particularly an ethylene group, G is a residue derived from a reducing sugar, d is a number having an average of 0 to 6, and e is an average of 1
The number is from 10 to 10, preferably from 1 to 5, particularly preferably from 1 to 2. ].

Particularly preferred compounds of the general formula (6) include the compound of the following general formula (6-1) and the compound of the general formula (6-2). R ¹⁹ -O (EO) _f -H (6-
1) [wherein R ¹⁹ is an average of 10 to 18 carbon atoms, preferably 10 carbon atoms
~ 16 primary linear, branched or secondary alkyl groups. EO is ethylene oxide, and f is 3 to 20 as an average addition mole number. ] _{^{R 19 -O [(EO) g}} / (PO) h] -H (6-2) wherein, R ¹⁹ is the average carbon number 10 to 18, preferably 10
~ 16 primary alkyl groups. EO indicates ethylene oxide, and PO indicates propylene oxide. g is 3 ~
15, h is 1 to 5. EO and PO may be added randomly, or PO may be added after EO is added, or vice versa. ].

In the compound of the general formula (7), G is a residue derived from a reducing sugar, and the reducing sugar as a raw material may be any of aldose and ketose, and has 3 to 6 carbon atoms. Individual trioses, tetroses, pentoses and hexoses can be mentioned. Specific examples of aldose include apiose, arabinose, galactose, glucose, lyxose, mannose, galose, aldose, idose, talose, and xylose, and examples of ketose include fructose. In the present invention, among them, aldopentose or aldohexose having 5 or 6 carbon atoms is particularly preferable, and glucose is most preferable.

The compound of the general formula (7) is obtained by combining the above reducing sugar with R ¹⁷
- (OR ¹⁸⁾ and _d -OH can be easily synthesized by reacting acetalization or ketalization using an acid catalyst. Further, in the case of an acetalization reaction, it may have a hemiacetal structure or a normal acetal structure.

In the present invention, as the nonionic surfactant,
Particularly, the compound of the general formula (7) is preferable from the viewpoint of the cleaning effect, and the content in the composition is preferably 1 to 15% by mass, more preferably 2 to 10% by mass. It is also preferable to use the compound of the general formula (6) and the compound of the general formula (7) in combination from the viewpoint of the cleaning effect, and the total of the compound of the general formula (6) and the compound of the general formula (7) is determined by the composition Middle 1-15
% By mass, preferably 2 to 10% by mass.

The liquid detergent composition of the present invention comprises components generally blended in a liquid detergent such as a fragrance component, a colorant, a dispersant, an abrasive, a germicide / antifungal agent, and the like. Can be blended in a range that does not affect the viscosity.

The composition of the present invention has a pH at 20.degree.
To 8, preferably 6.5 to 7.5 in terms of storage stability and safety to the skin. As a pH adjuster, inorganic acids such as hydrochloric acid and sulfuric acid, citric acid, succinic acid,
Acid agents such as malic acid, fumaric acid, tartaric acid, malonic acid, maleic acid and other organic acids, sodium hydroxide, potassium hydroxide, ammonia and derivatives thereof, and amine salts such as monoethanolamine, diethanolamine, triethanolamine, etc. It is preferable to use an alkali agent such as sodium carbonate, potassium carbonate or the like alone or in combination, and particularly to use an acid selected from hydrochloric acid, sulfuric acid and citric acid and an alkali agent selected from sodium hydroxide and potassium hydroxide. preferable.

The composition of the present invention is a liquid detergent composition most suitable for a method of directly impregnating a flexible absorbent body and rubbing an object to be washed such as tableware with a small amount of water. It shows excellent cleaning power and cleaning durability for cleaning dishes and utensils. Here, impregnation means that the detergent is soaked into the flexible absorber. As the flexible absorber, a sponge or scourer made of polyvinyl chloride, polyvinylidene chloride, nylon, polypropylene, polyester, cellulose, polyacrylamide, or polyurethane is preferable, and a material made of polyurethane or cellulose is particularly preferable. Further, in the present invention, it is preferable to impregnate the flexible absorbent with 0.1 to 2 g of the cleaning liquid in one cleaning step. In addition, moisture may be present in the flexible absorber. The dishwashing method using the composition of the present invention includes a step of washing the dish with the flexible absorbent impregnated with the composition as described above. In this step, a method in which the flexible absorbent body impregnated with the composition is brought into direct contact with tableware and scrubbed is preferred. After washing, wash the dishes with water.

[0043]

EXAMPLES A cleaning composition was prepared using the components shown in Table 1. The detergency, the persistence of the detergency and the storage stability of these compositions were evaluated by the following methods. Table 1 shows the results.

<Detergency Test> 0.2 g of oil obtained by mixing salad oil / tallow at a mass ratio of 1/1 was uniformly applied to the inside of polypropylene tappaware (B-803 manufactured by Iwasaki Kogyo Co., Ltd.). A model oil stain was prepared. A solution was prepared by diluting 0.3 g of the composition shown in Table 1 with 30 g of tap water, and the whole amount was prepared by using a commercially available sponge (flexible material, Goldfowl Cleaner No. 1).
5005, polyurethane foam). Using this sponge, the model oil stain was scrubbed and rinsed thoroughly with tap water, and then the feel of touching directly with a hand was evaluated according to the following criteria. ：: There is no slimming. Δ: There is slight slimming. ×: A considerable amount of slimming remains.

<Persistence test of detergency> Adjustment of model stains Salad oil / tallow was mixed at a mass ratio of 1/1, and 0.1% was added.
2 g of a model oil stain uniformly mixed with 1% by mass of a dye (stan red) was uniformly spread on a ceramic dish to obtain a model-contaminated tableware.

A commercially available sponge (flexible material, Goldbird Cleaner No. 5005, polyurethane foam) was impregnated with the composition of Table 1 in an amount of 0.44 g of the surfactant and 15 g of tap water to impregnate it. Blistered with the second hand. Using this, the model-contaminated tableware was scrubbed, and the number of dishes that could be cleaned (confirmed by disappearance of the color attached to the tableware) was determined.

<Storage Stability> 100 g of the composition shown in Table 1 was placed in a wide-mouthed bottle PS-13K and sealed, and allowed to stand in a constant temperature room at -5 ° C. for 24 hours, and then left in a constant temperature room at 30 ° C. for 24 hours. did. After repeating this for three cycles, the appearance of the composition was determined according to the following criteria. ；: There is no change in the appearance of the composition. □: The composition is slightly turbid or separated. Δ: The composition is slightly turbid, and separation or thickening is slightly observed. X: The composition becomes cloudy, separated or thickened.

[0048]

[Table 1]

Notes: 1): Sodium polyoxyethylene alkyl ether sulfate according to the oxo method [The raw material alcohol is an alcohol obtained by hydroformylating 1-decene and 1-dodecene 50/50 (mass ratio) as raw materials. After adding an average of 2 moles of EO to this alcohol, it was sulfated with sulfur trioxide and neutralized with sodium hydroxide. The proportion of the total sodium polyoxyethylene branched alkyl ether sulfate in the total sodium polyoxyethylene alkyl ether sulfate was 42% by mass. 2): N-lauroylaminopropyl-N, N-dimethylamine oxide 3): N-lauryl-N, N-dimethyl-N-carboxymethylammonium carbobetaine 4): N-lauryl-NN-dimethyl- N- (2-hydroxy-3-sulfopropyl) ammonium sulfobetaine 5): formulated as magnesium chloride hexahydrate (the values in the table are% by mass as magnesium atoms, 0.4% by mass)
Corresponds to a content of 3.8% by mass in the composition as magnesium chloride hexahydrate. 6): Sodium polyoxyethylene disulfate having a weight average molecular weight of 1500 7): Sodium polyoxyethylene disulfate having a weight average molecular weight of 450 8): Composition of alkyl group having 12 carbon atoms / 14 carbon atoms
Alkyl glucoside having 0/40 linear mixed alkyl and glucoside average condensation degree of 1 9): polyoxyethylene lauryl ether (average number of moles of added EO: 6) 10): Proxel BDN (manufactured by Avicia Corporation) 11): It adjusted using the 1 / 10N-sulfuric acid aqueous solution or the 1 / 10N-sodium hydroxide aqueous solution.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) C11D 3/34 C11D 3/34 17/08 17/08 (72) Inventor Kazunari Maruta Minato, Wakayama, Wakayama 1334 Kao Corporation Research Institute (72) Inventor Nobuyuki Ogura 1334 Minato, Wakayama-shi, Wakayama Prefecture 1334 Kao Corporation Research Institute F-term (reference)

Claims (1)

[Claims] (1) 10 to 55% by mass of a polyoxyalkylene alkyl ether sulfate salt having an alkyl or alkenyl group having 8 to 16 carbon atoms and an oxyalkylene group having an average addition number of 1 to 6; (B) 1 to 20% by mass of an amphoteric surfactant selected from the compound of the following general formula (1) and the compound of the general formula (2), (c) 0.1 to 2% by mass of magnesium, (d) polyethylene 0.05 to 2% by mass of glycol disulfate, (e) 1 to 15% by mass of a water-soluble organic solvent, and (f) 1 to 3 carbon atoms.
Contains 1 to 10% by mass of benzenesulfonic acid or a salt thereof in which 1 to 3 alkyl groups are substituted, and the total surfactant amount is 3%.
0 to 60% by mass, and the viscosity at 20 ° C. is 300 to
A liquid detergent composition having a pressure of 1000 mPa · s. Embedded image [Wherein, R ¹ is a straight-chain alkyl group or alkenyl group having 8 to 16 carbon atoms, and R ³ and R ⁴ are an alkyl group or hydroxyalkyl group having 1 to 3 carbon atoms. R ² has 1 to 5 carbon atoms
Is an alkylene group. A is -COO-, -CONH
—, —OCO—, —NHCO—, —O—, wherein a is a number of 0 or 1. ] [Wherein, R ⁵ is an alkyl group or alkenyl group having 9 to 23 carbon atoms, and R ⁶ is an alkylene group having 1 to ⁶ carbon atoms. B is -COO-, -CONH-, -OCO-, -N
A group selected from HCO- and -O-, wherein b is 0 or 1
Is the number of R ⁷ and R ⁸ are an alkyl group having 1 to 3 carbon atoms or a hydroxyalkyl group, and R ⁹ is an alkylene group having 1 to 5 carbon atoms which may be substituted with a hydroxy group. D is _{^{-COO -, -SO 3 -, -OSO}} 3 - is a group selected from. ]