JP2012172032A - Detergent composition for dish washing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a detergent for hand-washing of dishes exhibiting rich foaming and good foam stability, instantaneously extinguishing the foam in rinsing and finishing the rinsing work with a small amount of water.SOLUTION: The detergent composition for dish washing includes (a) 1-50 mass% of a specific alkylglycoside-type nonionic surfactant, (b) a compound selected from a sulfosuccinic acid monoalkyl ester having a 5-18C alkyl group, its salt, a sulfosuccinic acid dialkyl ester having a 5-18C alkyl group and its salt, and (c) an 8-22C fatty acid or its salt.

Description

  The present invention relates to a dishwashing detergent composition.

  A detergent composition for washing dishes is required to have abundant foaming at the time of washing and persistence of the foam at the time of washing. This foamability / foam persistence is a very important physical property that correlates with the persistence of washing, and until now, the development of a cleaning agent excellent in foamability / foam persistence has been mainly performed. On the other hand, in recent years, it is preferable to reduce the amount of water used for washing for the purpose of reducing the environmental burden and effectively using water resources, and it is desired to reduce the rinse water after washing with a dishwashing agent as much as possible.

  A dishwashing detergent composition containing an alkylglycoside surfactant is known as a detergent with little irritation to the skin. Patent Document 1 discloses a liquid detergent excellent in detergency and adaptability to the hand skin, which contains an alkylglycoside surfactant and soap, which are well known as foam stabilizers. On the other hand, Patent Document 2 discloses detergency, foam persistence, and hand skin containing an alkyl glycoside surfactant as a foam stabilizer and a sulfosuccinic acid diester surfactant as a foam stabilizer. A liquid detergent having excellent compatibility with the above is disclosed.

Japanese Patent Publication No. 6-504557 JP-A-63-225697

  As described above, the dishwashing detergent composition is required to exhibit abundant foaming and foam persistence at the time of washing, but to easily disappear when rinsing and to be rinsed with a small amount of water. However, the rinsing properties of the liquid detergent disclosed in Patent Document 1 are not sufficient, and it is difficult to remove bubbles during rinsing, and there is a problem that a large amount of water must be used for rinsing. The liquid detergent of Patent Document 2 contains an alkyl glycoside type surfactant and a sulfosuccinic acid diester type surfactant, which are foam stabilizers, but does not contain a component for improving the rinsing property, and has a rinsing property. It is a composition that cannot be expected to improve. As described above, these compositions cannot satisfy the required characteristics of the recent dishwashing detergent composition.

  Accordingly, an object of the present invention is to provide a dishwashing detergent composition that exhibits abundant foaming and foam persistence during washing, but disappears instantly during rinsing and is rinsed with a small amount of water.

In the present invention, (a) an alkylglycoside type nonionic surfactant represented by the following general formula (a1) [hereinafter referred to as component (a)] is 1 to 50% by mass, and (b) the alkyl group has 5 carbon atoms. A compound selected from sulfoalkyl succinic acid monoalkyl ester or a salt thereof having 18 to 18 carbon atoms and a sulfoalkyl succinic acid dialkyl ester or a salt thereof each having 5 to 18 carbon atoms [hereinafter referred to as component (b)], (c) carbon number 8 The present invention relates to a detergent composition for dishwashing, which comprises ˜22 fatty acids or salts thereof (hereinafter referred to as “component (c)”).
R ^1a- (OR ^2a ) _s G _t (a1)
[Wherein, R ^1a represents an alkyl group having 8 to 18 carbon atoms, and R ^2a represents an alkylene group having 2 to 4 carbon atoms. G represents a residue derived from a reducing sugar. s shows the number of 0-5 by average addition mole number, and t shows the number of 1-3 by average condensation degree. ]

  According to the present invention, there is provided a dishwashing detergent composition that exhibits abundant foaming at the time of washing and the persistence of the foam at the time of washing, but the foam disappears instantaneously at the time of rinsing and is rinsed with a small amount of water. .

<(A) component>
The component (a) of the present invention is an alkyl glycoside surfactant of the general formula (a1).
R ^1a- (OR ^2a ) _s G _t (a1)
[Wherein, R ^1a represents an alkyl group having 8 to 18 carbon atoms, and R ^2a represents an alkylene group having 2 to 4 carbon atoms. G represents a residue derived from a reducing sugar. s shows the number of 0-5 by average addition mole number, and t shows the number of 1-3 by average condensation degree. ]

In the general formula (a1), R ^1a is an alkyl group having 8 to 18, preferably 8 to 16, more preferably 8 to 12, and more preferably 8 to 10 carbon atoms. Good. In this case, the alkyl group is a straight chain, and the carbon atom of R ^1a bonded to the oxygen atom is a primary carbon atom. Further, s is preferably 0 to 3, more preferably 0 to 2, and particularly preferably 0. R ^2a is preferably an ethylene group.

  In general formula (a1), G is a residue derived from a reducing sugar. The reducing sugar as a raw material may be either aldose or ketose, and examples thereof include triose, tetrose, pentose, and hexose having 3 to 6 carbon atoms. 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 these, aldopentose or aldohexose having 5 or 6 carbon atoms is particularly preferred, and glucose is most preferred.

  In general formula (a1), t represents the average degree of condensation of sugars, and is a number of 1 to 2, preferably 1 to 1.5.

The compound of the general formula (a1) can be easily synthesized by acetalizing or ketalizing the above sugar and R ^1a — (OR ^2a ) _s —OH using an acid catalyst. In the case of an acetalization reaction, a hemiacetal structure or a normal acetal structure may be used.

<(B) component>
The component (b) of the present invention is a compound selected from a sulfosuccinic acid monoalkyl ester having 5 to 18 carbon atoms in an alkyl group or a salt thereof, and a sulfosuccinic acid dialkyl ester having an alkyl group in 5 to 18 carbon atoms or a salt thereof. Specifically, a compound of the following general formula (b1) is suitable.

[Wherein, R ^1b and R ^2b are each an alkyl group having 5 to 18, preferably 5 to 14, more preferably 5 to 12 carbon atoms or a hydrogen atom, and at least one of R ^1b and R ^2b is carbon. It is an alkyl group of formula 5-18. A ¹ and A ² are each independently an alkylene group having 2 to 4 carbon atoms, preferably 2 to 3 carbon atoms, and x and y are average added mole numbers, and are each independently 0 to 6. M ¹ is an inorganic or organic cation. ]

When the component (b) is a sulfosuccinic acid dialkyl ester or a salt thereof, R ^1b and R ^2b in the general formula (b1) may be the same or different, and foamability at the time of washing and foam at the time of rinsing From the viewpoint of disappearance, it is an alkyl group having 5 to 18, preferably 5 to 14, more preferably 5 to 12 carbon atoms. When the number of carbons is 5 or more, good foam disappearance at rinsing is obtained, and when the number of carbons is 18 or less, good foaming at washing is obtained. In addition, when the component (b) is a sulfosuccinic acid monoalkyl ester or a salt thereof, one of R ^1b and R ^{2b in} the general formula (b1) is a viewpoint of foamability during washing and foam disappearance during rinsing. To an alkyl group having 5 to 18 carbon atoms, preferably 5 to 14 carbon atoms, more preferably 5 to 12 carbon atoms, and the other is a hydrogen atom. R ^1b and R ^2b are each an alkyl group having 5 to 18 carbon atoms, preferably 5 to 14 carbon atoms, more preferably 5 to 12 carbon atoms, from the viewpoints of foamability during washing and foam extinction during rinsing. That is, the component (b) is preferably a sulfosuccinic acid dialkyl ester or a salt thereof. A ¹ and A ² are each independently an alkylene group having 2 to 4 carbon atoms, preferably 2 to 3 carbon atoms, from the viewpoints of foamability at the time of washing and foam disappearance at the time of rinsing. x and y are the average number of moles added, and are each 0 to 6, preferably 0 to 2, more preferably 0 to 1, from the viewpoints of foamability during washing and foam extinction during rinsing. Yes, particularly preferably 0.

In general formula (b1), R ^1b and R ^2b are each specifically hexyl, octyl, nonyl, decyl, dodecyl, tridecyl, 2-ethylhexyl, n-octyl, sec- An octyl group, an isopentyl group, an isononyl group, an isodecyl group, and a cyclohexyl group, and particularly preferably a group selected from an n-octyl group, a sec-octyl group, a decyl group, an isodecyl group, and a 2-ethylhexyl group. . Examples of M ¹ include inorganic cations selected from hydrogen ions, sodium ions, potassium ions, magnesium ions, and ammonium ions, organic cations selected from monoethanol ammonium ions, diethanol ammonium ions, and triethanol ammonium ions. Preferably, it is a cation selected from sodium ion, potassium ion, magnesium ion, and ammonium ion.

When component (b) is a dialkyl ester of sulfosuccinic acid or a salt thereof, the method for preparing the compound in which R ^1b and R ^2b are the same is not particularly limited, but for example, US Pat. No. 2,028 , 091 and an asymmetric compound in which R ^1b and R ^2b are different can be produced by referring to, for example, JP-A-58-24555. . When a commercially available compound is used, PALEX OT-P (a compound in which R ^1b and R ^2b are both 2-ethylhexyl groups) manufactured by Kao Corporation, and PELEX TR (both R ^1b and R ^2b are tridecyl groups). Compound), BASF's LuensitA-BO (a compound in which both R ^1b and R ^2b are 2-ethylhexyl groups), and aerosol AY-100 (R ^1b and R ^2b are both amyl groups) available from Mitsui Cytec Co., Ltd. And the same aerosol A-196 (a compound in which R ^1b and R ^2b are both cyclohexyl groups).

<(C) component>
Component (c) of the present invention is a fatty acid having 8 to 22 carbon atoms or a salt thereof, specifically decanoic acid, lauric acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, oleic acid, linoleic acid, Mention fatty acids with a single alkyl composition such as linoleic acid, coconut oil composition, palm oil composition, palm kernel oil composition, rapeseed oil composition, mixed fatty acids such as beef tallow fatty acid, fatty acids obtained by curing these with hydrogen, and salts thereof Can do. Fatty acid salts include inorganic salts selected from sodium salts, potassium salts, lithium salts, magnesium salts, ammonium salts, organic amine salts such as monoethanolamine salts, diethanolamine salts, and triethanolamine salts. From the viewpoint of odor deterioration and coloring, sodium salts, potassium salts and magnesium salts are preferable, and alkali metal salts such as sodium salts and potassium salts are more preferable.

  (C) As a component, from a viewpoint of foaming power and foam extinction property, More preferably, lauric acid, myristic acid, palmitic acid, coconut oil composition, palm oil composition, palm kernel oil composition, rapeseed oil composition, beef tallow composition fatty acid Mixed fatty acids such as, or salts thereof, more preferably lauric acid, myristic acid, coconut oil composition, palm oil composition, mixed fatty acid of palm kernel oil composition, or salts thereof, most preferably myristic acid , A mixed fatty acid having a coconut oil composition, or a salt thereof.

<Dishwashing detergent composition>
In general, the component (a) and the component (b) are known as compounds having extremely high foaming properties, and are generally used for dishwashing compositions, but the foam is difficult to disappear even after repeated rinsing after washing. In addition, a large amount of water was required to complete the rinsing. The component (c) of the present invention has an excellent effect of facilitating the disappearance of bubbles at the time of rinsing, but at the time of washing, a technique for achieving both excellent foaming properties and foam sustainability is required. In this invention, (c) component is mix | blended and it can use by a specific ratio, and it can make foaming property at the time of washing | cleaning / foam sustainability and the foam extinction property at the time of a rinse being compatible. In addition to the component (a) and the component (c), the compound (b) having an excellent foaming property is blended, so that not only the foaming property / sustainability of the foam at the time of washing but also the foam disappearance at the time of rinsing. It is an unexpected effect to improve.

  The reason for this is not necessarily clear, but it is considered as follows. The composition containing the component (a), the component (b), and the component (c) forms a foam film that exhibits excellent stability during cleaning. The foam film instantly extinguishes bubbles by calcium and (c) component forming a salt and depositing in tap water, and (c) component released from the micelle by dilution aggregates and precipitates. Can be considered. Here, it is considered that the component (b) has an effect of making the foam film itself fragile in such a mechanism.

  The detergent composition for dishwashing of the present invention is 1% by mass or more, preferably 10% by mass or more, and more preferably 15% by mass from the viewpoint of foamability and foam persistence when washing the component (a). From the viewpoint of foam extinction at the time of rinsing, the content is 50% by mass or less, preferably 45% by mass or less, and more preferably 40% by mass or less. In addition, from the viewpoint of foamability during washing and foam persistence, the component (b) is preferably contained in the composition in an amount of 30% by mass or less, more preferably 20% by mass or less, and still more preferably 15% by mass or less. From the viewpoint of foam extinction at the time of rinsing, the content is preferably 1% by mass or more, more preferably 2% by mass or more, and further preferably 2.5% by mass or more. In addition, from the viewpoint of foamability at the time of washing and foam persistence, the component (c) is preferably contained in an amount of 10% by mass or less, more preferably 8% by mass or less, and further preferably 5% by mass or less. From the viewpoint of foam extinction at the time of rinsing, the content is preferably 0.1% by mass or more, more preferably 0.15% by mass or more, and still more preferably 0.2% by mass or more.

  In addition, the total concentration of the component (a), the component (b), and the component (c) of the detergent composition for dishwashing according to the present invention is preferably from the viewpoint of foaming properties and foam persistence during cleaning. 2% by mass or more, more preferably 12% by mass or more, and further preferably 18% by mass or more. From the viewpoint of economy, it is preferably 90% by mass or less, more preferably 73% by mass or less, and more preferably 60% by mass. It is as follows.

  Moreover, the cleaning composition for dishwashing of this invention is [(b) component + (c) component] / (a from a viewpoint of the foamability at the time of washing | cleaning, the sustainability of foam, and the foam disappearance at the time of a rinse. ) Component mass ratio is preferably 0.30 to 1.3, more preferably 0.33 to 1.0, and particularly preferably 0.33 to 0.70.

  In addition, in the dishwashing detergent composition of the present invention, the mass ratio of component (c) / component (b) is preferably 0.20 to 4.0, more preferably, from the viewpoint of foam disappearance during rinsing. Is 0.25 to 3.0, more preferably 0.30 to 2.0.

  Further, in the dishwashing detergent composition of the present invention, from the viewpoint of foam disappearance at the time of rinsing, the total content of the component (b) and the component (c) is the total amount of the surfactant in the composition. On the other hand, it is preferably 10 to 50% by mass, more preferably 15 to 45% by mass, and still more preferably 20 to 40% by mass.

  In the present invention, the behavior of bubbles during washing and rinsing is very important. In general research on a detergent composition for washing dishes, a surfactant having a foam increasing effect has been used in consideration of foaming property / foam persistence during washing. In such a case, the surfactant having the effect of increasing the foam has a great influence on the foam disappearance at the time of rinsing. In the present invention, as the component (d), attention should be paid to the handling of a surfactant selected from amine oxide surfactants, carbobetaine surfactants and alkanolamide surfactants.

  In this invention, it is preferable that content of (d) component is 20 mass% or less with respect to content of all the surfactants in a composition, specifically, 0-20 mass%, and also 0 It is preferable that it is -10 mass%, and also it is 0-5 mass%. In the composition of the present invention, the contents of all surfactants ((a) component, (b) component, (c) component, (d) component, (e) component and other surfactants) are as follows: 2-60 mass%, Furthermore, 20-40 mass%, Furthermore, 25-35 mass% is preferable. Moreover, in this invention, it is preferable that content of (d) component shall be 20 mass% or less in a composition, and specifically 0-20 mass% in a composition, Furthermore, 0-5 mass%, Furthermore, it is preferable to set it as 0-2 mass%.

  As amine oxide type surfactants, N-alkanoylaminopropyl-N, N-dimethylamine oxide (lauroyl or myristyl as alkanoyl), N-alkyl-N, N-dimethylamine oxide (lauryl or myristyl as alkyl group) Group). Carbobetaine surfactants include N-alkanoylaminopropyl-N, N-dimethyl-N-carboxymethylammonium betaine, N-alkanoylaminopropyl-N, N-dimethyl-N- (2-hydroxysulfopropyl). Examples thereof include ammonium betaine, N-alkyl-N, N-dimethyl-N-carboxymethylammonium betaine, and N-alkyl-N, N-dimethyl-N- (2-hydroxysulfopropyl) ammonium betaine. Furthermore, examples of the alkanolamide surfactant include amidated products of alkanolamines such as monoethanolamine, diethanolamine, and methylmonoethanolamine with fatty acids such as lauric acid and myristic acid.

The dishwashing detergent composition of the present invention has an alkyl group having 6 to 18 carbon atoms in the alkyl group as the component (e) from the viewpoint that instant rinsing does not result in moisture and the rinsing can be completed with a small amount of water. It is preferable to contain glyceryl ether. Specifically, the compound of the following general formula (e1) is suitable.
R ^1e —O— (Gly) _r —H (e1)
[Wherein, R ^1e represents an alkyl group having 6 to 18 carbon atoms, Gly represents a residue obtained by removing two hydrogen atoms from glycerin, r represents an average number of added moles, and represents a number of 1 to 4. . ]

In the general formula (e1), R ^1e is an alkyl group having 6 to 18 carbon atoms, preferably 7 to 12 carbon atoms, more preferably 8 to 10 carbon atoms. In the present invention, a compound having a branched structure is preferable from the viewpoint of reducing the dullness at the time of rinsing, and R ^1e is preferably an alkyl group having a branched structure. Specific examples include 2-ethylhexyl group, sec-octyl group, isononyl. A group selected from a group and an isodecyl group is more preferable, a 2-ethylhexyl group or an isodecyl group is further preferable, and a 2-ethylhexyl group is particularly preferable. In general formula (e1), r is preferably 1 to 3, more preferably 1 to 2, and most preferably a compound of r = 1. A particularly preferred compound is a compound in which R ^1e is a 2-ethylhexyl group and r = 1.

The structure represented by Gly is the structure represented by —CH ₂ CH (OH) CH ₂ — in which the 1-position and 3-position hydroxy groups of glycerol are bonded, or the 1-position and 2-position hydroxy groups of glycerol are bonded. The structure is represented by —CH (CH ₂ OH) CH ₂ —, which varies depending on the catalyst and reaction conditions.

In order to obtain the compound of the general formula (e1), for example, an alkyl alcohol represented by R ^1e —OH is used as an alcohol having 6 to 18 carbon atoms, and an epoxy compound such as epihalohydrin or glycidol is reacted with an acid catalyst such as BF ₃ , Or the method of manufacturing by making it react using an aluminum catalyst can be used.

  For example, when 2-ethylhexanol is used, the obtained 2-ethylhexyl monoglyceryl ether is a mixture that can contain a plurality of products as described in JP-A No. 2001-49291.

  (E) From a viewpoint of washing | cleaning performance, content of (e) component is 0.5-20 mass% in a composition, Furthermore, 1-15 mass%, Furthermore, 2-10 mass% is more preferable.

  The dishwashing detergent composition of the present invention can contain a solvent [hereinafter referred to as component (f)] for the purpose of improving storage stability and adjusting viscosity. Specific examples of the solvent include ethanol, isopropyl alcohol, ethylene glycol, propylene glycol, diethylene glycol, dipropylene glycol, glycerin, isoprene glycol, propylene glycol monomethyl ether, propylene glycol monoethyl ether, 3-methyl-3-methoxybutanol, A water-soluble organic solvent selected from phenoxyethanol, phenyl glycol, phenoxyisopropanol, butyl diglycol (diethylene glycol monobutyl ether), dibutylene glycol, and benzyl alcohol is preferred. Among these, one or more water-soluble organic solvents selected from butyl diglycol, ethanol, and propylene glycol are preferable, and one or more water-soluble organic solvents selected from ethanol and propylene glycol are more preferable. Here, the water-soluble organic solvent refers to a solvent having an octanol / water partition coefficient (LogPow) of 3.5 or less. The content of the component (f) is preferably 1 to 30% by mass, more preferably 2 to 20% by mass, and particularly preferably 2 to 10% by mass in the composition.

  The dishwashing detergent composition of the present invention can contain a hydrotrope agent (hereinafter referred to as component (g)) for the purpose of improving storage stability. As the hydrotrope, toluenesulfonic acid, xylenesulfonic acid, cumenesulfonic acid or a sodium, potassium or magnesium salt thereof is preferable, and p-toluenesulfonic acid or a salt thereof is particularly preferable. (G) Content of a component becomes like this. Preferably it is 0.2-10 mass% in a composition, More preferably, it is 0.5-8 mass%, Most preferably, it is 1-7 mass%.

  In the present invention, in order to prevent gelation of the dishwashing detergent composition, a polymer (hereinafter referred to as component (h)), for example, a gelation-preventing polymer described in JP-T-11-513067 is used. May be used. In particular, blending of polyalkylene glycol is preferable from the viewpoint of viscosity control and storage stability. Specific examples of the polyalkylene glycol as a polymer for preventing gelation include polypropylene glycol having a weight average molecular weight of 200 to 5,000 determined by gel permeation chromatography using polyethylene glycol as a standard, and Examples include polyethylene glycol having a weight average molecular weight of 200 to 5,000. The content of the component (h) is preferably 0.05 to 3% by mass, more preferably 0.1 to 2% by mass, and particularly preferably 0.2 to 1.5% by mass in the composition.

  The dishwashing detergent composition of the present invention is preferably in the form of a liquid composition in which the above components are dissolved / dispersed / emulsified in water, and more preferably an aqueous solution. As water, deionized water, distilled water, or hypochlorous acid sterilized water in which about 0.5 to 10 ppm of hypochlorous acid is dissolved can be used.

  In the case of a liquid composition containing water, the pH at 25 ° C of the dishwashing detergent composition of the present invention is preferably 4 to 9, more preferably 5 to 8, and such pH is adjusted. Is an inorganic acid selected from sulfuric acid, hydrochloric acid, phosphoric acid, citric acid, malic acid, maleic acid, fumaric acid, organic acid selected from succinic acid, sodium hydroxide, potassium hydroxide, magnesium hydroxide, sodium carbonate, carbonic acid It is carried out using an inorganic alkaline agent such as potassium. In the present invention, it is preferable that the composition has a buffering ability from the viewpoint of foamability / foam persistence, and it is preferable to use the above organic acid, preferably citric acid, and an inorganic alkaline agent in combination. The organic acid may be added to the composition in the form of sodium salt or potassium salt, but the content is preferably 0 to 7% by mass, more preferably 0.5 to 5% by mass in the composition as an acid form. %, Particularly preferably 0.5 to 3% by mass.

  The viscosity at 20 ° C. of the dishwashing detergent composition of the present invention is preferably 10 to 300 mPa · s, more preferably 20 to 200 mPa · s. Such viscosities are component (f) and component (g). , (H) component and the like.

  The dishwashing detergent composition of the present invention may contain commonly used components such as fragrances, dyes and pigments.

  The dishwashing detergent composition of the present invention is suitably used for dishwashing washing of dishes. The cleaning liquid used for hand-washing is obtained using the dishwashing detergent composition of the present invention, and a stock solution of the composition or a diluted liquid containing water is used. As a specific hand-washing method, for example, the composition of the present invention is attached to a flexible material such as a sponge containing water to hold the cleaning liquid, and foamed while squeezing several times by hand to rub the dishes. To do. The total concentration of the component (a), the component (b), and the component (c) in the cleaning liquid retained by the flexible material is preferably 1,000 to 30,000 ppm, more preferably 1,000 to 20,000 ppm. More preferably, it is 2,000 to 10,000 ppm from the viewpoint of high foamability and foam persistence. After completion of washing, water is added to perform rinsing. For example, in the present invention, bubbles disappear with 3.3 to 133 parts by mass of rinsing water with respect to 1 part by mass of the composition used, and rinsing can be completed quickly. it can. The amount of the rinsing water is 2/3 to 1/10 when a conventional dishwashing detergent composition for hand washing is used.

Examples 1-10 and Comparative Examples 1-4
A dishwashing detergent composition shown in Table 1 was prepared using the following ingredients. Evaluation of foaming power and foam disappearance of each dishwashing detergent composition was evaluated by the following methods. The results are shown in Table 1. In addition, all the mass% of the compounding component in Table 1 is a numerical value based on the effective component of the compounding component. In addition, the viscosities at 20 ° C. of the compositions of Examples 1 to 10 were all 10 to 300 mPa · s.

<Blending ingredients>
A-1: an alkyl glucoside having an average glucoside condensation degree of 1.3 (C), wherein the alkyl group is a naturally derived straight chain and the composition is a mixed alkyl group of C8 / C10 / C12 = 60/30/10 (mass ratio) The number after the number means carbon number)
B-1: Sodium di (2-ethylhexyl) sulfosuccinate (Tokyo Kasei Co., Ltd., reagent)
B-2: Sodium di (2-isodecyl) sulfosuccinate (synthetic product)
B-3: sodium ditridecyl sulfosuccinate (Kao Corporation, Perex TR)
C-1; sodium myristate (Kanto Chemical Co., Inc., reagent)
・ C-2; Fatty acid composition fatty acid (Kao Corporation, Lunac L-55)
D-1; Lauryldimethylamine oxide (Kao Corporation, Amphital 20N)

<Foaming power>
40 ml of an aqueous solution obtained by diluting the composition to 0.40% with 3.5 ° dH hard water was added to a cylindrical glass container having a diameter of 5 cm and a height of 13 cm containing 20 plastic beads having a diameter of about 9 mm. Furthermore, 0.04 g of butter was added, and the temperature was adjusted to 20 ° C. for 15 minutes after sealing. Set the temperature-controlled sample in a laundry tester (Suga Test Instruments Co., Ltd.), stir for 15 minutes in an environment of 20 ° C, and immediately remove the sample and measure the height (mm) of the foam. did. Evaluation was performed twice per composition, and the average value was defined as the foaming power of the composition.

<Bubble disappearance>
The composition was diluted to 3.2% with 3.5 ° dH hard water, and 3 g of foam was produced in a 500 ml glass graduated cylinder using a pump former (one 200 mesh), and its volume was measured from the graduated scale of the graduated cylinder. Was recorded (initial foam amount). Next, 100 ml of 3.5 ° dH hard water was added to the foam through a handmade water heater. After 30 seconds, 100 ml of hard water (total 200 ml) was further added to the foam, and the amount of foam after 30 seconds was measured. The foam disappearance was determined from the rate of change in the amount of foam represented by the following formula. In this evaluation, it can be determined that rapid bubble disappearance by dilution (rinsing) can be achieved if the foam amount change rate is 60% or less, more preferably 50% or less, and even more preferably 30% or less. .
Foam amount change rate (%) = (foam amount after adding 200 mL of hard water / initial foam amount) × 100

  As the pump former, a commercially available pump former of “Cucut citric acid effect foam type” (manufactured by Kao Corporation: manufactured in 2007) was sufficiently washed with water and dried. The hand-made water bottle is made by removing about one-third of the bottom of a 250 ml polypropylene wide-mouthed bottle (Aswan: Eyeboy wide-mouthed bottle), and uniformly opening 13 holes with a diameter of about 2 mm in the opening with the lid removed. A thin plastic perforated plate with the opening opened was fixed. When water is poured from the top, water is released from the hole at the lower end.

  From the results in Table 1, it was found that the compositions of the examples were excellent in foaming power at the time of washing and foam disappearance at the time of rinsing. From Comparative Examples 1 and 4, it was found that if the component (b) was not blended, the foaming power and foam disappearance were poor. Moreover, it turned out that foam extinction property is inferior, unless (c) component is mix | blended from Comparative Examples 1-3. Furthermore, even if the blending amount of the component (a) is increased instead of the component (c) from the comparison between the example 2 and the comparative example 2, the foam disappearance is poor. From the comparison between the example 3 and the comparative example 3, (c) It was found that even if the blending amount of component (b) was increased instead of component, the foam disappearance was poor.

Example 11
A dishwashing detergent composition shown in Table 2 was prepared using the ingredients shown in Table 2. The foaming power and foam disappearance of each dishwashing detergent composition were evaluated by the method described in Example 1. Moreover, the following method evaluated the ease of removal of the null tack at the time of the rinse of a composition. The results are shown in Table 2. In addition, the compounding component [(a)-(c) component] in Table 2 is the same as Example 1.

<Evaluation regarding ease of removal of Nurtsuki>
1 g of the composition was weighed on a sponge (manufactured by Kikuron Co., Ltd.), and 30 g of tap water at 25 ° C. was contained. In this state, the sponge was squeezed 5 times, and then 5 polypropylene dishes (manufactured by Kanto Plastic Plastic Industry Co., Ltd.) having a diameter of about 23 cm were washed. Thereafter, it was rinsed with 25 ° C. tap water whose flow rate was adjusted to 4 L / min, and a sensory evaluation was performed on the ease of removing the null-stick from the polypropylene plate felt at that time. As a result, it was confirmed that it was easy to remove the null-stick derived from the surfactant in the composition at the time of rinsing and a quick and crisp feel was obtained, and the ease of removing the null-stick was evaluated as “good”.

Claims (5)

(A) 1 to 50% by mass of an alkylglycoside type nonionic surfactant represented by the following general formula (a1), (b) a sulfosuccinic acid monoalkyl ester having 5 to 18 carbon atoms in the alkyl group or a salt thereof and an alkyl A dishwashing detergent composition comprising a compound selected from a sulfosuccinic acid dialkyl ester having 5 to 18 carbon atoms or a salt thereof, and (c) a fatty acid having 8 to 22 carbon atoms or a salt thereof.
R ^1a- (OR ^2a ) _s G _t (a1)
[Wherein, R ^1a represents an alkyl group having 8 to 18 carbon atoms, and R ^2a represents an alkylene group having 2 to 4 carbon atoms. G represents a residue derived from a reducing sugar. s shows the number of 0-5 by average addition mole number, and t shows the number of 1-3 by average condensation degree. ] The cleaning composition for dishwashing according to claim 1, wherein the mass ratio of ((b) + (c)] / (a) is 0.30 to 1.3. The cleaning composition for dishwashing according to claim 1 or 2, wherein the mass ratio of (c) / (b) is 0.20 to 4.0. (D) an interface selected from amine oxide surfactants, sulfobetaine surfactants, carbobetaine surfactants, and alkanolamide surfactants with respect to the total surfactant content in the composition The cleaning composition for dishwashing according to any one of claims 1 to 3, wherein the content of the activator is 0 to 20% by mass. Furthermore, the cleaning composition for dishwashing of any one of Claims 1-4 which contains the monoalkyl glyceryl ether which has a C6-C18 alkyl group as (e) component.