JP2021055097A - Detergent thickener and detergent composition containing the same - Google Patents

Abstract

To provide a thickener that can impart suitable viscosity to a liquid detergent containing as a main base a hardly thickened anionic surfactant such as an N-acylmethyltaurine salt.SOLUTION: A detergent thickener contains (A) 40-80 mass% of a fatty acid ester of polyoxyalkylene pentaerythritol represented by the general formula (1) in the figure, (B) 10-50 mass% of a fatty acid alkanolamide, and (C) 2-30 mass% of a C12-24 higher fatty acid.SELECTED DRAWING: None

Description

The present invention relates to a thickener for a cleaning agent, and more specifically, it is possible to impart an appropriate viscosity to a cleaning agent containing a hardly thickening anionic surfactant such as N-acylmethyltaurine salt as a main base. It is about thickeners.

Liquid cleaning composition composed mainly of N-acylmethyltaurine salt or amino acid-based surfactant is generally hypoallergenic, but it is difficult to impart an appropriate viscosity required for its use. .. Therefore, various techniques have been proposed for the purpose of constructing the viscosity of an anionic surfactant having a low viscosity.

A weakly acidic liquid cleaning agent formulation in which a fatty acid diethanolamide and a water-soluble inorganic salt are mixed with an N-acylamino acid-based surfactant is disclosed (see Patent Document 1). According to this technology, it is possible to increase the viscosity of the cleaning agent composition without impairing the usability of the N-acylamino acid-based surfactant, but the inorganic salt concentration is the upper limit in order to build a particularly sufficient viscosity. The low temperature stability of the cleaning agent composition in the portion close to was not sufficient.

A liquid cleaning agent formulation in which an inorganic salt is used in combination with an amphoteric surfactant, a semi-polar surfactant and a cationic surfactant is disclosed for the purpose of reducing the blending amount of the water-soluble inorganic salt to build the viscosity ( See Patent Document 2). Although improvement in low temperature stability was observed, it was not satisfactory because the inorganic salt was an essential component and it became difficult to use a conditioning agent in combination.

On the other hand, fatty acid amidoamine has been shown to have high viscosity in cleaning agents such as body detergents and kitchen detergents, and further to have excellent handleability, solubility and foaming power (see Patent Document 3). Further, polyoxyethylene pentaerythrit tetrastearate also has a high thickening effect on a liquid cleaning agent containing a poorly viscous anionic surfactant as a main base (see Patent Document 4).

Special Fair 2-54400 Gazette Japanese Unexamined Patent Publication No. 2003-147399 Japanese Unexamined Patent Publication No. 2011-021110 Japanese Unexamined Patent Publication No. 2008-63268

However, the formulation described in the examples of Patent Document 3 is a system in which an aliphatic amidoamine, sodium laureth sulfate and an amphoteric surfactant are used in combination, and the effect of a poorly viscous anionic surfactant (particularly an amino acid surfactant) is Not confirmed.
When polyoxyethylene pentaerythrit tetrastearate of Patent Document 4 is used alone, the viscosity increases remarkably, and it is difficult to control the viscosity to an appropriate level as a liquid cleaning agent.

An object of the present invention is to provide a thickener capable of imparting an appropriate viscosity to a liquid cleaning agent containing a poorly thickening anionic surfactant such as N-acylmethyltaurine salt as a main base. It is a thing.

As a result of investigating a thickener that solves the problem of imparting viscosity to a liquid cleaning agent containing a poorly thickening anionic surfactant as a main base, the present inventors have investigated a fatty acid ester of polyoxyethylene pentaerythrit. , Fatty acid alkanolamide and higher fatty acid are combined in a predetermined ratio to solve the above-mentioned problems, and the present invention has been completed.

〔式中、Ｒ^１〜Ｒ^４はそれぞれ独立して炭素原子数１１〜２３の脂肪酸残基を表し、ＡＯは炭素原子数２〜４のオキシアルキレン基を表す。また、ｐ、ｑ、ｒ及びｓは、２０≦ｐ＋ｑ＋ｒ＋ｓ≦３００の関係を満たす整数である。〕
により表される、ポリオキシアルキレンペンタエリトリットの脂肪酸エステル（Ａ）４０〜８０質量％、
脂肪酸アルカノールアミド（Ｂ）１０〜５０質量％および
炭素原子数１２〜２４の高級脂肪酸（Ｃ）２〜３０質量％
を含有する、洗浄剤用増粘剤。
［２］アニオン界面活性剤、及び［１］に記載の洗浄剤用増粘剤を含有する、洗浄剤組成物。
［３］前記アニオン界面活性剤が、Ｎ−アシルアミノ酸塩、Ｎ−アシルサルコシン塩及びＮ−アシルメチルタウリン塩から選ばれる１種又は２種以上である、［２］に記載の洗浄剤組成物。
［４］前記アニオン界面活性剤が、Ｎ−アシルメチルタウリン塩である、［２］又は［３］に記載の洗浄剤組成物に関するものである。
［５］さらに両性界面活性剤を含有する、［２］〜［４］のいずれか１項に記載の洗浄剤組成物。 That is, the present invention
[1] The following general formula (1):

[In the formula, R ^{1 to} R ⁴ independently represent fatty acid residues having 11 to 23 carbon atoms, and AO represents an oxyalkylene group having 2 to 4 carbon atoms. Further, p, q, r and s are integers satisfying the relationship of 20 ≦ p + q + r + s ≦ 300. ]
40-80% by weight of fatty acid ester (A) of polyoxyalkylene pentaerythrit, represented by
Fatty acid alkanolamide (B) 10 to 50% by mass and higher fatty acid (C) having 12 to 24 carbon atoms (C) 2 to 30% by mass
A thickener for cleaning agents.
[2] A cleaning agent composition containing an anionic surfactant and a thickener for a cleaning agent according to [1].
[3] The cleaning agent composition according to [2], wherein the anionic surfactant is one or more selected from N-acylamino acid salt, N-acylsarcosine salt and N-acylmethyltaurine salt. ..
[4] The cleaning agent composition according to [2] or [3], wherein the anionic surfactant is an N-acylmethyltaurine salt.
[5] The cleaning composition according to any one of [2] to [4], which further contains an amphoteric surfactant.

When the thickener for cleaning agents of the present invention is added to a cleaning agent composition containing a poorly viscous anionic surfactant as a main base, the viscosity is usually about 300 to 6000 mPa · s, which is useful as the viscosity of the liquid cleaning agent composition. Thicken.

Hereinafter, embodiments of the present invention will be described.

The fatty acid ester (A) of polyoxyalkylene pentaerythritol represented by the general formula (1) can be obtained, for example, by reacting an alkylene oxide adduct of pentaerythritol with a fatty acid having 12 to 24 carbon atoms. it can.

The AO in the general formula (1) is an oxyalkylene group having 2 to 4 carbon atoms, and specifically, an oxyethylene group, 1,2- or 1,3-oxypropylene group, 1,2-1,1. , 3- or 1,4-oxybutylene group. Among these, an oxyethylene group and a 1,2-oxypropylene group are preferable, and an oxyethylene group is particularly preferable. p, q, r and s are the number of moles of alkylene oxide added, and p + q + r + s is 0 to a positive integer of 20 to 300, but p + q + r + s is preferably 80 to 200 from the viewpoint of feel and handleability. More preferably, it is 120 to 180. The AOs may be the same or different, and if they are different, they may be in the form of random addition, block addition, or alternating addition.

Examples of fatty acids having 12 to 24 carbon atoms include lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, and coconut oil fatty acids.

The proportion of the fatty acid ester (A) of the polyoxyalkylene pentaerythrit in the thickener for cleaning agent of the present invention is 40 to 80% by mass, preferably 50 to 70% by mass, particularly preferably from the viewpoint of the thickening effect. Is 55 to 65% by mass.

The fatty acid ester (A) of polyoxyalkylene pentaerythrit increases the amount of liquid cleaning agent by containing about 2 to 5% by mass with respect to the total amount of the cleaning agent composition containing a hardly thickening anionic surfactant as a main component. Can be sticky. However, it is difficult to control the viscosity to a practical level because the viscosity increases rapidly by itself. That is, if a certain amount is not blended, there is almost no thickening effect, but if it exceeds an appropriate amount, the thickening effect may occur rapidly and gelation may occur, and it is extremely difficult to stably exhibit the thickening effect.

On the other hand, by combining the fatty acid ester (A) of polyoxyalkylene pentaerythrit with the fatty acid alkanolamide (B) and the higher fatty acid (C), it is possible to control the thickening effect, and it is possible to control the thickening effect. It is possible to impart a practical viscosity as a liquid cleaning agent to a liquid cleaning agent having an activator such as an acylmethyl taurine salt as a main base while controlling the thickening effect.

Examples of the fatty acid alkanolamide (B) include a reaction product of a saturated or unsaturated fatty acid having 8 to 20 carbon atoms, a fatty acid derivative such as a methyl ester thereof, or a fat or oil, and an alkanolamine having 2 to 5 carbon atoms. Can be mentioned. Specific examples of fatty acids, fatty acid derivatives, and fats and oils used in the reaction include caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, coconut oil fatty acids, or theirs. Examples thereof include methyl ester derivatives and coconut oil. Specific examples of the alkanolamine include monoethanolamine, diethanolamine, isopropanolamine, methylethanolamine and the like. Among these reaction products, lauric acid monoethanolamide (lauramide MEA), myristic acid monoethanolamide (militamide MEA), coconut oil fatty acid monoethanolamide (cocamide MEA), lauric acid diethanolamide (lauramide DEA), and myristic acid. Diethanolamide (militamid DEA), palm oil fatty acid diethanolamide (cocamide DEA), lauric acid isopropanolamide (lauramide MIPA), myristic acid isopropanolamide (militamid MIPA), palm oil fatty acid isopropanolamide (cocamide MIPA), lauric acid methylethanolamide (Lauramide methyl MEA), myristic acid methylethanolamide (militamid methyl MEA), coconut oil fatty acid methylethanolamide (cocamidomethyl MEA) are preferably used, and coconut oil fatty acid monoethanolamide (cocamide MEA) is particularly preferable. Used. In the present invention, one or more of these fatty acid alkanolamides can be arbitrarily used.

The proportion of the fatty acid alkanolamide (B) in the thickener for cleaning agents of the present invention is 10 to 50% by mass, but is preferably 15 to 45% by mass, particularly preferably 20 to 40% by mass from the viewpoint of viscosity adjusting effect. Is.

Examples of the higher fatty acid (C) having 12 to 24 carbon atoms include saturated fatty acids such as lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, arachidic acid and behenic acid, decenoic acid, undecenoic acid and dodecenoic acid. , Tetradecenoic acid, oleic acid, erucic acid, linoleic acid, linolenic acid, unsaturated fatty acids such as ricinolic acid and the like. In the present invention, one or more of these higher fatty acids can be arbitrarily used, and among them, oleic acid and isostearic acid are preferable from the viewpoint of viscosity adjusting effect.

The proportion of the higher fatty acid (C) having 12 to 24 carbon atoms in the thickener for cleaning agent of the present invention is 2 to 30% by mass, but preferably 3 to 25% by mass from the viewpoint of the viscosity adjusting effect.

Preferred combinations of (A) to (C) in the thickener for cleaning agents of the present invention include, but are not limited to, the following combinations.
(I) (A) Polyoxyethylene pentaerythrit tetrastearate, (B) Palm oil fatty acid monoethanolamide, (C) Oleic acid (II) (A) Polyoxyethylene pentaerythrit tetrastearate, (B) Palm oil fatty acid monoethanolamide, (C) isostearic acid (III) (A) polyoxyethylene pentaerythrit tetrastearate, (B) palm oil fatty acid monoethanolamide, (C) stearic acid (IV) (A) poly Oxyethylene pentaerythrit tetrastearate, (B) palm oil fatty acid diethanolamide, (C) oleic acid (V) (A) polyoxyethylene pentaerythrit tetrastearate, (B) palm oil fatty acid diethanolamide, (C) ) Isostearic acid (VI) (A) polyoxyethylene pentaerythrit tetrastearate, (B) coconut oil fatty acid diethanolamide, (C) stearic acid (VII) (A) polyoxyethylene pentaerythrit tetrastearate, ( B) Palm oil fatty acid methylethanolamide, (C) Oleic acid (VIII) (A) Polyoxyethylene pentaerythrit tetrastearate, (B) Palm oil fatty acid methylethanolamide, (C) Isostearic acid (IX) (A) ) Polyoxyethylene pentaerythrit tetrastearate, (B) palm oil fatty acid methylethanolamide, (C) stearic acid

The cleaning agent composition of the present invention contains the above-mentioned thickener for cleaning agent and a surfactant as a base of the cleaning agent.
The amount of the thickener for cleaning agent to be blended is not particularly limited, but is preferably 0.5 to 10% by mass, more preferably 1 to 5% by mass, based on the total amount of the cleaning agent composition, for example.

As the surfactant used in the cleaning composition of the present invention, an anionic surfactant and an amphoteric surfactant are mainly used.

Examples of the anionic surfactant used as the main base of the cleaning agent composition of the present invention include sodium lauroylalanine, potassium lauroylalanine, lauroylalanine triethanolamine, sodium cocoylalanine, sodium lauroyl aspartate, and potassium lauroyl aspartate. , N-acyl (8 to 24 carbon atoms) amino acid salt such as sodium cocoyl glutamate, sodium lauroyl glutamate; N-acyl (number of carbon atoms) such as sodium lauroyl sarcosin, potassium lauroyl sarcosin, lauroyl sarcosin triethanolamine, sodium stearyl sarcosin 8 to 24) Sarcosine salt; N-acyl (8 to 24 carbon atoms) methyl taurine salt such as stearyl methyl taurine sodium and coconut oil fatty acid methyl taurine sodium can be mentioned. One or more of these anionic surfactants can be arbitrarily used, but among them, the N-acylmethyltaurine salt is preferable because it is hypoallergenic.

In addition, alkyl (8 to 24 carbon atoms) sulfate, alkyl (8 to 24 carbon atoms) ether sulfate, alkyl (8 to 24 carbon atoms) benzenesulfonic acid for the purpose of enhancing detergency and foaming power. Salt, alkyl (8-24 carbon atoms) phosphate, polyoxyalkylene alkyl (8-24 carbon atoms) ether phosphate, alkyl (8-24 carbon atoms) sulfosuccinate, polyoxyalkylene alkyl (8-24 carbon atoms) 8 to 24 carbon atoms) Ether sulfosuccinate, α-sulfo fatty acid ester salt, ether carboxylate, polyoxyalkylene fatty acid monoethanolamide sulfate, long chain (8 to 24 carbon atoms) carboxylate, etc. You can also do it.

In the cleaning agent composition of the present invention, the content of the anionic surfactant is 1 to 20% by mass, preferably 3 to 15% by mass, and particularly preferably 5 to 10% by mass with respect to the total amount of the composition. ..

Examples of the amphoteric surfactant include alkyl (8 to 24 carbon atoms) amidopropyl betaine, alkyl (8 to 24 carbon atoms) carboxybetaine, alkyl (8 to 24 carbon atoms) sulfobetaine, and alkyl (carbon atoms). Number 8 to 24) Hydroxysulfobetaine, alkyl (8 to 24 carbon atoms) amidopropyl hydroxysulfobetaine, alkyl (8 to 24 carbon atoms) hydroxyphosphobetaine, alkyl (8 to 24 carbon atoms) aminocarboxylate , Alkyl (8 to 24 carbon atoms) imidazolinium betaine, alkyl (8 to 24 carbon atoms) amine oxide, alkyl (8 to 24 carbon atoms) phosphate ester containing tertiary nitrogen and quaternary nitrogen, etc. Can be mentioned.

In the cleaning agent composition of the present invention, the content of the amphoteric surfactant is 1 to 10% by mass, preferably 2 to 8% by mass, and particularly preferably 3 to 6% by mass with respect to the total amount of the composition. ..

Preferred combinations of the anionic surfactant and the amphoteric surfactant include, but are not limited to, the following combinations.
(I) Sodium coconut oil fatty acid methyl taurine and alkyl (8 to 24 carbon atoms) amide propyl betaine (cocamidopropyl betaine, etc.)
(Ii) Sodium methyl taurine fatty acid in coconut oil and alkyl (8 to 24 carbon atoms) carboxybetaine (alkyl betaine in coconut oil, etc.)
(Iii) Sodium coconut oil fatty acid methyl taurine and alkyl (8 to 24 carbon atoms) imidazolinium betaine (sodium lauroamphoacetate, etc.)
(Iv) Sodium cocoyl glutamate and alkyl (8 to 24 carbon atoms) amide propyl betaine (cocamidopropyl betaine, etc.)
(V) Sodium coconut glutamate and alkyl (8 to 24 carbon atoms) carboxybetaine (alkyl betaine of coconut oil, etc.)
(Vi) Sodium cocoyl glutamate and alkyl (8 to 24 carbon atoms) imidazolinium betaine (sodium lauroamphoacetate, etc.)
The preferred combination of the components (A) to (C) in the thickener for cleaning agent of the present invention: (I) to (XI) and the preferred combination of the anionic surfactant and the amphoteric surfactant: (i). ) To (vi) can be combined with each other to obtain the cleaning agent composition of the present invention.

A nonionic surfactant can also be used in the cleaning composition of the present invention, if necessary. Examples of the nonionic surfactant include alkanolamide, glycerin fatty acid ester, polyoxyalkylene alkyl ether, polyoxyalkylene glycol ether, polyoxyalkylene sorbitan fatty acid ester, sorbitan fatty acid ester, polyoxyalkylene sorbit fatty acid ester, and sorbit fatty acid ester. , Polyoxyalkylene glycerin fatty acid ester, polyoxyalkylene fatty acid ester, polyoxyalkylene alkylphenyl ether, tetrapolyoxyalkylene ethylenediamine condensate, sucrose fatty acid ester, polyoxyalkylene fatty acid amide, polyoxyalkylene glycol fatty acid ester, polyoxy Examples thereof include alkylene bean oil derivatives, polyoxyalkylene-cured bean oil derivatives, alkyl polyglycosides, and polyglycerin fatty acid esters.

Further, other components in the cleaning agent composition of the present invention are not particularly limited, and components generally used in the cleaning agent composition can be blended as optional components. Other ingredients that can be blended are illustrated below.

The cleaning agent composition of the present invention may contain an anionic polymer, a cationic polymer, a nonionic polymer, an amphoteric polymer, a silicone component, an oil component, a pearlizing agent, and a suspending agent.
Examples of anionic polymers include acrylic acid derivatives (polyacrylic acid and its salts, acrylic acid / acrylamide / ethyl acrylate copolymers and salts thereof, etc.) and methacrylic acid derivatives (polymethacrylic acid and its salts, methacrylic acid). -Acrylamide, diacetone acrylamide, acrylic acid alkyl ester, methacrylate alkyl ester copolymer and its salts, etc.), crotonic acid derivative (vinyl acetate, crotonic acid copolymer, etc.), maleic acid derivative (maleic anhydride, diisobutylene) (Copolymer, isobutylene / maleic acid copolymer, etc.), polyglutamic acid and its salt, hyaluronic acid and its salt, carboxymethyl cellulose, carboxyvinyl polymer and the like can be mentioned.

Examples of cationic polymers include quaternary nitrogen-modified polysaccharides (cationically modified cellulose derivatives, cationically modified guar gum, cationically modified locust bean gum, cationically modified tamarind gum, cationically modified taragum, cationically modified starch, etc.), dimethyldiallyl chloride. Ammonium derivative (dimethyldiallylammonium chloride / acrylamide copolymer, polydimethylmethylenepiperidinium chloride, etc.), vinylpyrrolidone derivative (vinylpyrrolidone / dimethylaminoethylmethacrylate copolymer salt, vinylpyrrolidone / methacrylatepropyltrimethylammonium chloride) Polymers, vinylpyrrolidone, methylvinylimidazolium chloride copolymer, etc.), methacrylic acid derivatives (methacryloylethyldimethylbetaine, methacryloylethyltrimethylammonium chloride, 2-hydroxyethyl methacrylate copolymer, methacryloylethyldimethylbetaine, methacryloyl chloride Trimethylammonium, methoxypolyethylene glycol methacrylate copolymer, etc.) and the like.

Examples of nonionic polymers include acrylate derivatives (hydroxyethyl acrylate / methoxyethyl acrylate copolymers, polyacrylic acid amides, etc.) and vinylpyrrolidone derivatives (polyvinylpyrrolidone, vinylpyrrolidone / vinyl acetate copolymers, etc.). , Polyoxyalkylene glycol derivatives (polyethylene glycol, polypropylene glycol, etc.), cellulose derivatives (methyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, etc.), polysaccharides and derivatives thereof (guar gum, locust bean gum, dextran, etc.) and the like.

Examples of amphoteric polymers include amphoteric starch, dimethyldiallylammonium chloride derivatives (acrylamide / acrylic acid / dimethyldialylammonium chloride copolymer, acrylate / dimethyldialylammonium chloride copolymer, etc.), and methacrylic acid derivatives (polymethacryloyl). Ethyldimethylbetaine, N-methacryloyloxyethyl N, N-dimethylammonium-α-methylcarboxybetaine, alkyl methacrylate copolymer, etc.) and the like can be mentioned.

As the silicone component, silicone rubber, silicone oil, and functional group-modified silicone can be blended. Specific examples thereof include dimethylpolysiloxane, amino-modified silicone, polyether-modified silicone, alkyl-modified silicone, cyclic silicone, fluorine-modified silicone and the like.

Examples of the oil include olive oil, jojoba oil, liquid paraffin, fatty acid alkyl ester and the like. Further, examples of the pearlizing agent include fatty acid ethylene glycol and the like, and examples of the suspending agent include polystyrene emulsion and the like.

Further, other components that can be blended in the cleaning composition of the present invention include cationic surfactants, pH adjusters (citric acid, lactic acid, glutamate, glycolic acid, etc.), solubilizers (ethanol, ethylene glycol, propylene, etc.). Glycol, etc.), moisturizer (glycerin, trehalose, sorbitol, martitol, dipropylene glycol, 1,3-butylene glycol, Na hyaluronate, etc.), antioxidant, higher alcohol, higher fatty acid, thickener, metal sequestering agent (Edetoate, etc.), ultraviolet absorbers, bactericides, preservatives, pigments, fragrances, foaming enhancers, etc. can be mentioned.

The cleaning composition of the present invention can be prepared by dissolving or dispersing each of the above components in water as a solvent. The blending amount of water is not particularly limited, but is, for example, 60 to 90% by mass with respect to the total amount of the cleaning agent composition.

As the dosage form of the cleaning agent composition of the present invention, a liquid cleaning agent, a gel-like cleaning agent, and a jelly-like cleaning agent are preferable, and a liquid cleaning agent and a gel-like cleaning agent are more preferable. Specific examples thereof include facial cleansers, body shampoos, shampoos, hand soaps, shaving agents, laundry detergents and the like.

Next, the present invention will be described in more detail and in detail with reference to Examples and Comparative Examples, but the present invention is not limited to these Examples. In addition, all of the compounding amounts described below are mass%.

Prepare shampoo formulations according to the formulations listed in Tables 1-3. (The pH was adjusted with citric acid or sodium citrate so as to have an appropriate value.) The formulation viscosity of these prepared formulations was measured.
The details of the components indicated by abbreviations in the table are as follows.
AMT: Sodium cocoyl methyl taurine (Neoscope CN-30 manufactured by Toho Chemical Industry Co., Ltd.)
CAB: Cocamidopropyl Betaine (Obazoline CAB-30 manufactured by Toho Chemical Industry Co., Ltd.)
CME: Coconut oil fatty acid monoethanolamide (Toho Hall N-120 manufactured by Toho Chemical Industry Co., Ltd.)
DEA: Coconut oil fatty acid diethanolamide (Toho Chemical Industry Co., Ltd. Toho Hall N-220XM)
PETS: Polyoxyethylene (150 mol) pentaerythrit tetrastearate

Explanation of evaluation method <Viscosity test>
At 25 ° C., the viscosity of the cleaning agent composition was adjusted to No. 1 using a B-type viscometer (Bismetron viscometer VS-A1 manufactured by Shibaura System Co., Ltd.). The rotation speed was fixed at 12 rpm with rotors 1 to 4 for measurement. The pH was adjusted to 5.0 with citric acid.

In each formulation, the total amount of surfactant (total amount of cleaning agent base and thickener component) is adjusted to 10.0 to 15.0% by mass with respect to the total mass of the cleaning agent composition (shampoo formulation). .. Comparing the Example group and the Comparative Example group, the thickener of the Example group is practical as a liquid cleaning agent for the formulation of cocoyl methyl taurine Na and cocamidopropyl betaine, which are poorly viscous anionic surfactants. It can be seen that the effect of imparting a high viscosity (300 to 6000 mPa · s) is exhibited. In the example group, the thickener components could be quickly and uniformly mixed and dissolved to prepare a cleaning agent composition, and the obtained cleaning agent composition had good foaming. That is, the cleaning agent composition of the example group has basic performance as a cleaning agent in terms of foaming property and solubility. On the other hand, in Comparative Examples 2 to 5 in which only PETS, which is the component (A), was blended as the thickener component, there was almost no thickening effect when the blending amount was 1.5% by mass or less, but 2.0 mass. When it exceeds%, the viscosity increases rapidly. Further, in Comparative Examples 6 to 10 and 12 to 16 in which any one of the components (A) to (C) is lacking as a thickener component, there is no thickening effect or sufficient viscosity cannot be imparted. .. Further, even when all the components (A) to (C) which are thickener components are contained, when the specified blending ratio is not satisfied, for example, in the case of Comparative Example 11 in which the component (C) exceeds a predetermined amount. As a result, the thickening became too high, and a practical viscosity could not be obtained.

Claims (5)

The following general formula (1):

[In the formula, R ^{1 to} R ⁴ independently represent fatty acid residues having 11 to 23 carbon atoms, and AO represents an oxyalkylene group having 2 to 4 carbon atoms. Further, p, q, r and s are integers satisfying the relationship of 20 ≦ p + q + r + s ≦ 300. ]
40-80% by weight of fatty acid ester (A) of polyoxyalkylene pentaerythrit, represented by
Fatty acid alkanolamide (B) 10 to 50% by mass and higher fatty acid (C) having 12 to 24 carbon atoms (C) 2 to 30% by mass
A thickener for cleaning agents. A cleaning agent composition containing an anionic surfactant and a thickening agent for a cleaning agent according to claim 1. The cleaning composition according to claim 2, wherein the anionic surfactant is one or more selected from N-acylamino acid salt, N-acylsarcosine salt and N-acylmethyltaurine salt. The cleaning composition according to claim 2 or 3, wherein the anionic surfactant is an N-acylmethyltaurine salt. The cleaning composition according to any one of claims 2 to 4, further containing an amphoteric surfactant.