JP5809006B2 - Dishwashing composition for hand washing - Google Patents

Description

  The present invention relates to a dishwashing composition for hand washing.

  In addition to good detergency, dishwashing agents for hand washing are required to have abundant foaming (foaming properties) during washing, foam persistence (foam persistence), and foaming properties during rinsing. This foaming property and foam persistence are important physical properties that are very correlated with the feeling of washing at the time of washing, and until now, the development of a detergent excellent in foaming property and foam persistence has been mainly performed. In recent years, detergents that are excellent in foaming property at the time of rinsing have been developed along with the lack of water, water precious areas, and the growing awareness of consumers about water conservation.

  Patent Document 1 discloses a detergent composition having improved foaming performance by selecting a specific combination of sulfosuccinic acid diester type surfactants having a specific chain length. Patent Document 2 discloses a dishwashing composition containing a sulfosuccinic acid diester type surfactant and other anionic surfactants that improve the low-temperature detergency of oil and / or starch stains. . Furthermore, Patent Document 3 describes a detergent composition that suppresses foaming by synergistic action of an anionic surfactant, silicone oil, and 2-alkyl-alkanol. In Patent Document 4, a composition containing an anionic surfactant having a branched carbon chain and a silicone foam control agent, a fatty acid foam control agent, and a mixture thereof, and a rinsing step of a manual dishwashing method are used. A method for reducing the amount of water is disclosed.

JP 59-138299 A Special table 2008-507611 Japanese National Patent Publication No. 8-502545 JP-T-2004-522817

  In recent years, it has been preferable to reduce the amount of water used for hand-washing dishwashing agents, as water shortages and areas where water is precious, and consumers' increased awareness of saving water, especially from tableware, cooking utensils and / or washing utensils. It is desired to reduce as much as possible the rinsing water required to remove the foam.

  The end point of the rinsing of the hand-washing dishwashing agent is thought to be the disappearance of bubbles and the elimination of dishwashing. It visually confirms that many consumers are removing foam from dishes and cooking utensils and / or cleaning utensils, and also helps to clean the detergent that remains on the dishes and utensils and / or utensils. It is because it understands that it is confirming by tactile sense. However, in general, a cleaning agent that is excellent in foaming property and foam persistence requires a large amount of water to finish rinsing because the tableware is always slick. Accordingly, there is a strong need for a dishwashing detergent for hand washing that completes rinsing with a small amount of water because it exhibits abundant foaming and persistence of foam when washed, but instantly eliminates null sticking when rinsed.

  However, in Patent Documents 1 and 2, no consideration is given to the improvement of nulliness during rinsing. Further, Patent Documents 3 and 4 are methods for reducing the amount of water used during the rinsing process. However, in recent years, with a small amount of water due to water shortages and areas where water is precious, and people's awareness of water conservation is increasing. There is a need for a technique that completes rinsing by suppressing null tack.

  An object of the present invention is to provide a dishwashing agent for hand-washing in which rinsing with a small amount of water is completed, since abundant foaming is exhibited at the time of washing, but null-sticking disappears instantaneously at the time of rinsing.

  The present invention includes (a) a sulfosuccinic acid alkyl ester represented by the following general formula (1) or a salt thereof (hereinafter referred to as component (a)), (b) a hydrocarbon group having 8 to 21 carbon atoms, and a sulfate ester. An anionic surfactant having a base or a sulfonate group (excluding (a)) (hereinafter referred to as component (b)), and (c) an alcohol having 8 to 24 carbon atoms having a branched hydrocarbon group [ Hereinafter referred to as component (c)] relates to a dishwashing composition for hand washing containing 0.0001 to 0.1% by mass.

[Wherein, R ¹ and R ² are each an alkyl group having 5 to 18 carbon atoms or a hydrogen atom, and at least one of R ¹ and R ² is an alkyl group having 5 to 18 carbon atoms. That is, the case where R ¹ and R ² are hydrogen atoms at the same time is excluded. A ¹ and A ² are each independently an alkylene group having 2 to 4 carbon atoms, and x and y are average added mole numbers, and are each independently 0 to 6. M ¹ is a cation. ]

  Moreover, this invention relates to the washing | cleaning method of the tableware which wash-washes tableware with the washing | cleaning liquid using the dishwashing agent composition for hand-washing of the said invention, and then rinses using water.

  ADVANTAGE OF THE INVENTION According to this invention, the dishwashing agent for hand-washing which completes a rinse with a small amount of water is provided by showing a rich foaming at the time of a washing | cleaning, but disappearing instantly at the time of a rinse.

<(A) component>
The component (a) of the present invention is a sulfosuccinic acid alkyl ester represented by the following general formula (1) or a salt thereof.

[Wherein R ¹ and R ² are each an alkyl group having 5 to 18 carbon atoms, preferably 6 to 14 carbon atoms, more preferably 7 to 10 carbon atoms, or a hydrogen atom, and at least one of R ¹ and R ² is carbon. It is an alkyl group of formula 5-18. That is, the case where R ¹ and R ² are hydrogen atoms at the same time is excluded. A ¹ and A ² are each independently an alkylene group having 2 to 4 carbon atoms, preferably 2 to 3 carbon atoms, x and y are average addition mole numbers, and are each independently 0 to 6; M ¹ is a cation, preferably an inorganic or organic cation. ]

When the component (a) is a sulfosuccinic acid dialkyl ester or a salt thereof, R ¹ and R ² in the general formula (1) may be the same or different and have 5 to 18 carbon atoms, preferably 6 to 14 carbon atoms. More preferably, it is an alkyl group of 7 to 10, and preferably an alkyl group having a branched structure. When component (a) is a dialkyl ester of sulfosuccinic acid represented by the general formula (1) 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. , X and y are the average number of moles added, and 0 to 6, each independently preferably 0 to 2, more preferably 0. Moreover, x + y = 0 to 12, preferably 0 to 4, more preferably 0.

In addition, when the component (a) is a sulfosuccinic acid monoalkyl ester or a salt thereof, one of R ¹ and R ^{2 in} the general formula (1) has 5 to 18 carbon atoms, preferably 6 to 14 carbon atoms, more preferably It is a 7-10 alkyl group, and the other is a hydrogen atom. When the component (a) is a sulfosuccinic acid monoalkyl ester represented by the general formula (1) 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, x and y are average added mole numbers, and are each independently 0 to 6, preferably 0 to 3, and more preferably 0. Moreover, it is x + y = 0-12, Preferably it is 0-4.

R ¹ and R ² in the general formula (1) are each an alkyl group having 5 to 18 carbon atoms, preferably 6 to 14 carbon atoms, more preferably 7 to 10 carbon atoms, that is, the component (a) is sulfosuccinate. An acid dialkyl ester or a salt thereof is preferable.

In general formula (1), R ¹ and R ² are each preferably hexyl, octyl, nonyl, decyl, dodecyl, tridecyl, 2-ethylhexyl, n-octyl, sec-octyl. Group, isopentyl group, isononyl group, isodecyl group, cyclohexyl group, among which n-octyl group, sec-octyl group, decyl group, isodecyl group, and 2-ethylhexyl group are preferable. A 2-ethylhexyl group is more preferred. M ¹ is an organic cation selected from an inorganic cation selected from hydrogen ion, sodium ion, ammonium ion, potassium ion and magnesium ion, monoethanolamine, diethanolamine, triethanolamine and morpholine acid salt, preferably Is a cation selected from sodium ion, ammonium ion, potassium ion, and magnesium ion.

When the component (a) is a dialkyl ester of sulfosuccinic acid or a salt thereof, the preparation method of the compound in which R ¹ and R ² are the same is not particularly limited, but for example, US Pat. No. 2,028 , 091 can be produced with reference to the method described in JP-A No. 58-24555, and an asymmetric compound having different R ¹ and R ² can be produced, for example. . When using a commercially available compound, PALEX OT-P (a compound in which R ¹ and R ² are both 2-ethylhexyl groups) manufactured by Kao Corporation, and PELEX TR (both R ¹ and R ² are tridecyl groups) Compound), LusitA-BO (compound in which R ¹ and R ² are both 2-ethylhexyl groups) manufactured by BASF, and aerosol AY-100 (R ¹ and R ² are both amyl groups) available from Mitsui Cytec Co., Ltd. And the same aerosol A-196 (a compound in which R ¹ and R ² are both cyclohexyl groups). (A) As a raw material of a component, what added the alkylene oxide to the alcohol of predetermined carbon number can also be used.

<(B) component>
The component (b) of the present invention is an anionic surfactant (except for the component (a)) having a hydrocarbon group having 8 to 21 carbon atoms and a sulfate ester group or a sulfonic acid group. Such anionic surfactants are known to be very excellent in foaming properties, and more specifically, alkyl sulfates having an alkyl group having 8 to 18 carbon atoms, preferably 8 to 15 carbon atoms. The average added mole number of the salt, an alkyl group having 8 to 18 carbon atoms, preferably 8 to 15 carbon atoms, and an oxyalkylene group having 2 to 3 carbon atoms is 0.1 to 6, preferably 0.3 to 3, More preferably, a polyoxyalkylene alkyl ether sulfate having a polyoxyalkylene group of 0.4 to 1.5, an alkylbenzene sulfonate having an alkyl group having 8 to 15 carbon atoms, and an alkane having 8 to 15 carbon atoms An anionic surfactant selected from sulfonates is preferred. As the salt, an inorganic salt selected from a sodium salt, an ammonium salt, a potassium salt, and a magnesium salt, an organic amine salt selected from a monoethanolamine salt, a diethanolamine salt, a triethanolamine salt, and a monophorin salt are preferable.

As the component (b), the compound represented by the following general formula (2) is preferable from the viewpoints of foamability at the time of washing, foam persistence, and foam extinction at the time of rinsing.
R ³ —O— (R ⁴ O) _n —SO ₃ M ² (2)
[In the formula, R ³ is an alkyl group having 8 to 18 carbon atoms, preferably 8 to 15 carbon atoms, R ⁴ is an ethylene group and / or a propylene group, n is an average added mole number, and is 0 or more and 6 or more. The following numbers, preferably 0 or more and 2 or less. M ² is a cation, preferably an inorganic or organic cation. ]

n is preferably a number of 1.5 or less and more preferably a number of 0.3 or more when R ⁴ is an ethylene group. Further, n is preferably 1.5 or less, more preferably 1.0 or less, and further 0.8 or less when R ⁴ is a propylene group, and 0.1 or more, further 0.2 or more, and further 0 A number of 4 or more is preferred. When R ⁴ is an ethylene group or a propylene group, n can be selected from these ranges.

In the general formula (2), when n is 0, a compound containing an alkyl group in which R ³ has a branched structure may be used. When n is 0, the compound of the general formula (2) preferably has a branching ratio [ratio of the total number of moles of the compound having a branched alkyl group to the total number of moles of the compound of the general formula (2)]. A compound of 15 to 100 mol%, more preferably 40 to 100 mol%, particularly preferably 70 to 100 mol% is suitable.

M ² in the general formula (2) is selected from an inorganic cation selected from sodium ion, ammonium ion, potassium ion and magnesium ion, monoethanolammonium ion, diethanolammonium ion, triethanolammonium ion and morpholine acid salt. An organic cation is mentioned, Preferably they are a sodium ion, potassium ion, ammonium ion, and magnesium ion.

The method for preparing the compound of the general formula (2) is not particularly limited. For example, after a predetermined amount of ethylene oxide and / or propylene oxide is added to the fatty alcohol represented by R ³ —OH depending on the purpose. It is produced by sulfate formation with a sulfating agent selected from sulfur trioxide (liquid or gas), sulfur trioxide-containing gas, fuming sulfuric acid and chlorosulfonic acid, and neutralization with a predetermined alkali agent. The addition reaction of ethylene oxide (hereinafter referred to as EO) and / or propylene oxide (hereinafter referred to as PO) requires a catalyst, and an alkali hydroxide such as NaOH or KOH can be used. Moreover, the catalyst which has a magnesium oxide as a main component as described in Unexamined-Japanese-Patent No. 8-323200 can be used, The former can obtain polyoxyethylene alkyl ether with comparatively wide addition mole number distribution, The latter is comparison. A compound having a narrow addition mole number distribution can be obtained. Further, as disclosed in JP-A-10-158384, it is also possible to control the added mole number distribution by using an alkali catalyst and a metal oxide catalyst in combination.

In the case of obtaining a compound in which R ³ is an alkyl group having a branched structure, which is suitable when n is 0 in the general formula (2), the alcohol represented by R ³ —OH as a raw material has 8 to 8 carbon atoms. 14 alcohols obtained by hydroformylation of 1-alkene (contains 15 to 70 mol% of an alkyl group having a methyl group branched at the β-position with respect to the OH group) and an aldehyde having 4 to 8 carbon atoms were condensed. Subsequently, a gel-form alcohol obtained by reduction (containing 100 mol% of a structure in which an alkyl group having 3 to 6 carbon atoms is branched at the β-position relative to the OH group) and a dimer of isobutene are hydroformylated. The resulting 3,5,5-trimethylhexanol and isobutene trimer are hydroformylated to form a multibranched tridecanol (branching rate is 100 mol%), petroleum and coal. Synthetic alcohol (branch index of about 20 to 100 mole percent of the alkyl group) can be exemplified.

In the present invention, the component (b) is a compound represented by the general formula (2), wherein R ⁴ is a propylene group, n is 0.1 to 1.5, and further 0.2 to 1.0. Further, a compound having a number of 0.4 to 0.8 is most preferable.

<(C) component>
The component (c) of the present invention is an alcohol having 8 to 24 carbon atoms having a branched hydrocarbon group. (C) As for carbon number of a component, 8-18 are preferable and 8-12 are more preferable. More specifically, 2-ethyl-1-hexanol, 2-propylheptanol, 2-butyl-1-octanol, 2-butyloctanol, 2-pentylnonanol, 2-hexyldecanol, 2-heptylundecanol, Alternatively, 2-octyldodecanol and the like can be mentioned, but 2-ethyl-1-hexanol, 2-butyl-1-octanol, or 2-propylheptanol is preferable, and 2-octyldodecanol is more preferable. Ethyl-1-hexanol and 2-butyl-1-octanol are preferable, and 2-ethyl-1-hexanol is particularly preferable.
(C) Although it does not specifically limit as a preparation method of a component, A commercial item may be used, it synthesize | combines and may be used and 1 type (s) or 2 or more types can be used. For example, (I) a method of preparing a branched alcohol obtained by hydroformylating a 1-alkene having 8 to 24 carbon atoms, or (II) an aldol condensation of an aldehyde having 4 to 14 carbon atoms, followed by reduction. Examples include a method for preparing Gerve alcohol.
Here, according to the hydroformylation reaction of (I), a linear primary alcohol obtained by adding carbon monoxide to the α-position of the olefin carbon and a branched primary alcohol obtained by adding to the β-position A mixture is obtained. In the present invention, it is preferable to use a branched primary alcohol obtained by separation and purification from this mixture. However, the mixture may be used as it is as long as the amount does not impair the effects of the present invention.

  Furthermore, a commercial item can also be used. For example, Safol 123 (manufactured by Sasol Corporation, a mixture of an alkyl group having 12 carbon atoms and an alkyl group having 13 carbon atoms (carbon number 12 / carbon number 13 = 50/50 (mass ratio)) and the branching rate is 94 mol% mixed alcohol), Safol 23 (manufactured by Sasol, a mixture of alkyl group having 12 carbon atoms and alkyl group having 13 carbon atoms (carbon number 12 / carbon number 13 = 50/50 (mass ratio)) Mixed alcohol having a branching ratio of 50 mol%), Neodol 23 (manufactured by Shell Co., Ltd., a mixture of an alkyl group having 12 carbon atoms and an alkyl group having 13 carbon atoms (carbon number 12 / carbon number 13 = 40 / 60 (mass ratio)), and a branched / linear alcohol mixture such as a mixed alcohol having a branching ratio of 20 mol% can also be used.

  Further, as shown in (II), gel alcohol obtained by subjecting an aldehyde having 4 to 24 carbon atoms to aldol condensation and then reduction treatment can be used. Gerve alcohol is a primary alcohol having 8 to 24 carbon atoms in which an alkyl group having 2 to 6 carbon atoms is branched at the β-position (branching rate is 100 mol%). As a commercial product of such a branched-chain alcohol, Isofol 14T (manufactured by Sasol, butyloctanol, 2-butyldecanol, 2-hexyloctanol, a mixture of 2-hexyldecanol (average molecular weight 218)) and the like can also be used. .

  Further, as component (c) other than these, for example, 3,5,5-trimethylhexanol obtained by hydroformylation of isobutene dimer, and multi-branched tridecanol obtained by hydroformylation of isobutene trimer are used. You can also. These are polybranched primary alcohols having 9 to 15 carbon atoms, preferably 9 or 13, having 2 to 6 methyl groups branched.

<Dishwashing composition for hand washing>
The dishwashing composition for hand washing of the present invention exhibits a very high foaming property in a cleaning agent having a relatively high concentration of the cleaning agent by using the component (b) having foaming property and foam persistence. However, due to the high concentration of the cleaning agent, it is difficult to remove the null-sticking during rinsing. In this system, the packing property of the surfactant layer adsorbed on the tableware surface can be disturbed by using the bulky (a) component and the (c) component together, and the null-sticking at the time of rinsing is reduced. it is conceivable that.

  The dishwashing composition for hand-washing of the present invention is preferably 1 to 30% by mass, more preferably 2 to 20% by mass of the component (a) from the viewpoint of foaming power and ease of removal of null-sticking at the time of rinsing. More preferably, it contains 3-10 mass%. Moreover, (b) component becomes like this. Preferably it is 1-50 mass%, More preferably, it is 5-40 mass%, Most preferably, it contains 10-30 mass%. In addition, the quantity of (b) component for calculating | requiring mass%, mass ratio, etc. in this invention is the quantity as an acid type compound. In addition, from the viewpoint of easy removal of the null thickness at the time of rinsing, the component (c) is 0.0001 to 0.1% by mass, preferably 0.0005 to 0.045% by mass, and more preferably 0.015 to 0.005%. Contains 025 mass%.

  In the dishwashing composition for hand washing of the present invention, the ratio of the total mass of the component (c) to the total mass of the components (a), (b) and (c), that is, [(c) component] / [(( The mass ratio of (a) component + (b) component + (c) component] is preferably 0.0001 to 0.05, more preferably 0.005, from the viewpoint of the durability of the foam and the ease of removing the null-stick. 0.01, and still more preferably 0.001 to 0.005.

  In the dishwashing detergent composition for hand washing of the present invention, the mass ratio of (b) component / [(a) component + (c) component] is preferably 0.1 or more from the viewpoint of foaming power and foam disappearance. , More preferably 0.5 or more, particularly preferably 1 or more. The mass ratio is preferably 20 or less, more preferably 15 or less, more preferably 10 or less, and particularly preferably 5 or less.

  Further, in the dishwashing composition for hand washing of the present invention, the mass ratio of component (c) / component (a) is preferably 0.0001 to 0.1, more preferably 0, from the viewpoints of odor and null prevention. 0.001 to 0.01, more preferably 0.01 to 0.06.

  In the dishwashing detergent composition for hand washing of the present invention, the mass ratio of the component (a) / (b) is preferably 0.01 to 2, more preferably, from the viewpoints of foaming power and foam breakage. It is 0.03-1.5, More preferably, it is 0.1-1, More preferably, it is 0.2-0.5.

  In the present invention, the total mass of the component (a), the component (b) and the component (c) with respect to the total surfactant content in the composition is 20 to 100% by mass, further 40 to 100% by mass, and further 60 to 60%. It is preferable that it is 100 mass% from a viewpoint of foaming power, foaming property, and null-sticking prevention.

  It is preferable that the dishwashing composition for hand-washing of this invention contains a C10-C18 fatty acid or its salt as (d) component from a foam extinction property and a foam quality viewpoint. Specific examples of the component (d) include decanoic acid, lauric acid, myristic acid, palmitic acid, palmitoleic acid, stearic acid, oleic acid, linoleic acid, linolenic acid, and salts thereof. Moreover, it is also possible to use mixed fatty acids, such as an insulator composition fatty acid. Examples of fatty acid salts include inorganic salts selected from sodium salts, ammonium salts, potassium salts, and magnesium salts, and organic amine salts such as monoethanolamine salts, diethanolamine salts, triethanolamine salts, and morpholine salts. Salts, ammonium salts, potassium salts, magnesium salts, and more preferably sodium salts, ammonium salts, and potassium salts. The component (d) is more preferably lauric acid, myristic acid, palmitic acid or a salt thereof, more preferably lauric acid, myristic acid or a salt thereof, most preferably myristic acid or a salt thereof. is there. Therefore, from the viewpoint of foaming ability and foam extinction, the component (d) preferably contains myristic acid or a salt thereof. In the component (d), the proportion of myristic acid or a salt thereof is 50 to 100% by mass, 80 to 100% by mass, and still more preferably 100% by mass.

  In the present invention, by using the component (d) in the system containing the component (a), the component (b), and the component (c), when rinsing water is added after completion of washing, calcium in the tap water and the component (d) It is thought that it can improve the effect of completing the rinsing with a small amount of water by forming a salt and making it insoluble, and by coagulating and insolubilizing the fatty acid released from the micelle by dilution to suppress foaming It is done.

  (D) Content of a component in a composition becomes like this. Preferably it is 0.1-20 mass%, More preferably, it is 0.5-10 mass%, More preferably, it is 1-6 mass%.

  Moreover, from the viewpoint of foaming power and foaming property, the mass ratio of component (d) / component (a) is preferably 0.001 to 11, more preferably 0.05 to 6, and still more preferably 0.07. ~ 3.

  In addition, when (d) component is contained, the total mass of (a) component, (b) component, (c) component, and (d) component with respect to content of all the surfactants in a composition is 20-100. It is preferable from a viewpoint of foaming power, foaming property, and prevention of null-sticking that it is mass%, 40-40 mass%, and also 60-100 mass%.

  The dishwashing composition for hand washing of the present invention has a magnesium-containing inorganic compound and / or an alkylenediamine compound (the alkylene group has a carbon number as component (e) for the purpose of enhancing the emulsifying power against oil stains and enhancing the cleaning power. 2-6), preferably containing a magnesium-containing inorganic compound. These compounds interact relatively weakly with at least two molecules of the effect necessary for the present invention, ie, component (a), component (b), and other anionic surfactants optionally contained to form a complex. And has a common effect / action mechanism as a compound that improves the surface activity such as emulsifying power.

  Examples of the magnesium-containing inorganic compound include magnesium chloride such as magnesium chloride, magnesium salts such as magnesium sulfate and magnesium nitrate, magnesium hydroxide, magnesium oxide, and the like, more preferably a compound selected from magnesium chloride and magnesium sulfate. Even more preferred is magnesium chloride. As the alkylene diamine compound, ethylene diamine, propylene diamine, hexylene diamine and cyclohexane diamine are preferable, but cyclohexane diamine and 1,3-bis (aminomethyl) cyclohexane are more preferable, and 1,3-bis (aminomethyl). ) Cyclohexane is more preferred.

  (E) Content of a component is 0.4-20 mass% in a composition, Furthermore, 1-15 mass%, Furthermore, 2-10 mass% is more preferable. In addition, although these (e) components may contain crystal water, content shown here is the mass except crystal water.

  In the dishwashing composition for hand washing of the present invention, an inorganic compound other than the component (e) may be used in combination with the component (e). Examples of inorganic compounds include sodium chloride, potassium chloride, sodium iodide, potassium iodide, sodium sulfate, potassium sulfate, alum and the like.

  In the present invention, the behavior of bubbles during washing and rinsing is also important. In a general study of a dishwashing composition for hand washing, a surfactant having a foam increasing effect is used in consideration of foaming property / sustainability of foaming at the time of washing. In such a case, a surfactant having a foam increasing effect affects the foam disappearance at the time of rinsing, so care must be taken when using it. In the present invention, attention should be paid to the handling of a surfactant selected from amine oxide type surfactants, carbobetaine type surfactants and alkanolamide type surfactants as the component (f).

  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.

  In the present invention, the behavior of foam is very important, and care must be taken in using the component (f) that gives the composition a foam-enhancing effect. In particular, the content of the component (f) relative to the total weight of the composition Is preferably 5% by mass or less, more preferably 3% by mass or less, still more preferably 2% by mass or less, still more preferably 1% by mass or less, still more preferably 0.5% by mass or less, and most preferably Is not contained.

  In the present invention, a sulfobetaine surfactant (hereinafter referred to as component (g)) may be used as a surfactant having a foam increasing effect. The sulfobetaine type surfactant improves the foaming property at the time of washing. Examples of the sulfobetaine surfactant include N-alkyl-N, N-dimethyl-N-sulfopropylammonium sulfobetaine having an alkyl group having 10 to 18 carbon atoms, N-alkyl-N, N-dimethyl-N- ( 2-hydroxysulfopropyl) ammonium sulfobetaine, N-alkanoylaminopropyl-N, N-dimethyl-N-sulfopropylammonium sulfobetaine having an alkanoyl group of 10 to 18 carbon atoms, N-alkanoylaminopropyl-N, N- Dimethyl-N- (2-hydroxysulfopropyl) ammonium sulfobetaine is preferred. (G) Content of a component becomes like this. Preferably it is 0.5-20 mass% in a composition, More preferably, it is 1-15 mass%, 2-10 mass%. The mass ratio of (g) component / [(a) component + (b) component] is preferably 0.01 to 0.2, more preferably 0.02 to 0.1. It is preferable from the viewpoint of improvement of foaming property and foam disappearance at the time of rinsing.

  The dishwashing detergent composition for hand washing of the present invention preferably contains a hydrotrope [hereinafter referred to as component (h)] 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 more preferable. (H) Content of a component becomes like this. Preferably it is 0.5-15 mass% in a composition, More preferably, it is 1-12 mass%, More preferably, it is 2-8 mass%.

  The dishwashing composition for hand washing of the present invention can contain a solvent [hereinafter referred to as component (i)] 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. (I) Content of a component becomes like this. Preferably it is 3-30 mass% in a composition, More preferably, it is 5-25 mass%, More preferably, it is 8-20 mass%.

  The dishwashing detergent composition for hand washing of the present invention includes a polymer for preventing gelation (hereinafter referred to as component (j)), for example, a gelation-preventing polymer described in JP-T-11-513067. In particular, it is preferable to blend polyalkylene glycol 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 3,000 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 3,000.

  Moreover, the alkylene oxide adduct of glycerol can also be used as (j) component. The alkylene oxide adduct of glycerin is effective in suppressing the formation of a surfactant film that can be formed at the gas-liquid interface of the cleaning composition. Particularly, glycerin is added with an average of 5 to 120, preferably 10 to 50 mol of ethylene oxide. In particular, it is preferable to use an ethylene oxide adduct of glycerin having a weight average molecular weight of 500 to 4000.

  (J) Content of a component becomes like this. Preferably it is 0.05-10 mass% in a composition, More preferably, it is 0.1-5 mass%, More preferably, it is 0.5-3 mass%.

  The dishwashing composition for hand washing 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 the water to be used, ion-exchanged water or distilled water from which a minute amount of dissolved metal components are removed, or hypochlorous acid sterilized water in which about 0.5 to 10 ppm of hypochlorous acid is dissolved can be used.

  The pH at 25 ° C. of the dishwashing composition for hand washing of the present invention is preferably 4 to 8, more preferably 5 to 7. Adjustment to such pH is an inorganic selected from sulfuric acid, hydrochloric acid, and phosphoric acid. The reaction is carried out using an organic acid selected from acids, citric acid, malic acid, maleic acid, fumaric acid and succinic acid, and an inorganic alkaline agent such as sodium hydroxide, potassium hydroxide, magnesium hydroxide, sodium carbonate and potassium carbonate. 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 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. Of the compounds used for pH adjustment, those corresponding to component (e), such as magnesium hydroxide, are handled as component (e).

  The viscosity at 20 ° C. of the dishwashing composition for hand washing of the present invention is preferably 5 to 500 mPa · s, more preferably 10 to 300 mPa · s. The viscosity can be adjusted by the component (h), the component (i), the component (j), and the like.

  The dishwashing composition for hand-washing of this invention can contain components, such as a fragrance | flavor, dye, and a pigment.

<Hand-washing method>
The dishwashing composition for handwashing of the present invention is used for handwashing dishes. The cleaning liquid used for hand-washing is obtained using the dishwashing detergent composition for hand-washing of the present invention, and a stock solution of the composition or a diluted solution 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 viewpoints of high foamability and ease of removal. After washing, water is added to perform rinsing. For example, in the present invention, the foam disappears and the water is removed with 3.3 to 133 parts by mass of rinsing water with respect to 1 part by mass of the composition used. Can be completed promptly. The amount of the rinsing water is about 2/3 to 1/10 when the conventional hand washing detergent composition is used.

Below, the aspect of this invention is shown.
<1> (a) a sulfosuccinic acid alkyl ester represented by the following general formula (1) or a salt thereof, (b) an anionic interface having a hydrocarbon group having 8 to 21 carbon atoms and a sulfate ester base or a sulfonate group A dishwashing detergent composition for hand-washing containing an activator (excluding (a)) and (c) 0.0001 to 0.1% by mass of an alcohol having 8 to 24 carbon atoms having a branched hydrocarbon group.

[Wherein R ¹ and R ² are each an alkyl group having 5 to 18 carbon atoms, preferably an alkyl group having a branched structure, or a hydrogen atom, and at least one of R ¹ and R ² has 5 to 18 carbon atoms. It is an alkyl group. That is, the case where R ¹ and R ² are hydrogen atoms at the same time is excluded. A ¹ and A ² are each independently an alkylene group having 2 to 4 carbon atoms, preferably an alkylene group having 2 to 3 carbon atoms, x and y are average added mole numbers, and are each independently 0 to 6, preferably 0 to 2, More preferably 0. M ¹ is a cation, preferably an inorganic or organic cation. ]

<2> The dishwashing composition for hand washing according to <1>, wherein (b) is contained in an amount of 1 to 50% by mass, preferably 5 to 40% by mass, more preferably 10 to 30% by mass.

<3> The mass ratio of [(c)] / [(a) + (b) + (c)] is 0.0001 to 0.05, preferably 0.005 to 0.01, more preferably 0.001. The dishwashing composition for hand washing according to <1> or <2>, wherein the composition is -0.005.

<4> The above <1> to <1>, wherein the mass ratio of (c) / (a) is 0.0001 to 0.1, preferably 0.001 to 0.01, and more preferably 0.01 to 0.06. The dishwashing agent composition for hand-washing of any one of 3>.

<5> Further, (e) the magnesium-containing inorganic compound and / or the alkylenediamine (the alkylene group has 2 to 6 carbon atoms), preferably a compound selected from magnesium chloride and magnesium sulfate. The dishwashing agent composition for hand-washing any one of Claims.

<6> A method for washing dishes, wherein the dishes are washed by hand with a cleaning solution using the dishwashing composition for washing hands according to any one of <1> to <5>, and then rinsed with water. .

  Using the following ingredients, the dishwashing composition for hand washing shown in Table 1 was prepared, and the following evaluations were made. The results are shown in Tables 1 and 2. Table 3 shows a comparative example. In addition, the mass% of the compounding component in Table 1 thru | or Table 3 is a numerical value based on an effective part altogether [(b) component has shown the mass% based on the quantity as a sodium salt for convenience. ]. In Table 3, the mass ratio is shown with c'-1 and c'-2 as the component (c) when the component (c) is not used. For the sake of convenience, the component (e) indicates mass% based on the amount of the compound containing crystal water. ]

<Blending ingredients>
A-1: Sodium di-2-ethylhexyl sulfosuccinate (Kanto Chemical Co., Inc.)
B-1: After adding 0.6 mol of PO to 1 mol of natural alcohol having an alkyl chain of 12 carbon atoms / 10 carbon atoms / 8 carbon atoms = 90/5/5 (mass ratio), sulfur trioxide Sulfated and neutralized with sodium hydroxide (10% diluted with water until neutralized until pH 11).
B-2: After adding 0.4 mol of PO and 1.5 mol of EO to natural alcohol having an alkyl chain of 12 carbon atoms / 14 carbon atoms = 73/27 (mass ratio), sulfur trioxide Sulfated and neutralized with sodium hydroxide (10% diluted with water until neutralized until pH 11).
C-1: 2-ethyl-1-hexanol (Kishida Corporation)
C-2: 2-butyl-1-octanol (manufactured by Sasol)
C'-1: 1-octanol (Kanto Chemical Co., Inc.)
C′-2: n-hexyl alcohol (Kanto Chemical Co., Inc.)
E: MgCl ₂ .6H ₂ O: Magnesium chloride hexahydrate

<Foaming power>
The composition was diluted 30 times with 3.5 ° DH hard water and filled into a pump former container shown in FIG. 1 of JP-A-2008-260852. Here, a single mesh having a mesh size of 200 / inch was attached to the foam discharge mechanism. Next, 3 g of foam was produced in a 500 ml graduated cylinder by continuously pushing out the pump head at the top of the container for 3 pushes. Note that the speed of pushing out was 1 second per push. The foam volume (ml) was read from the scale of the graduated cylinder and used as the foaming power. As a result, both Example and Comparative Example were 40 ml, which was good.

<Evaluation of ease of removal of Nurtsuki>
Bubbles were made by squeezing a commercially available sponge (trade name: Kikuron A, Kikuron Co., Ltd.) impregnated with 1 g of each composition in Table 1 and 30 g of tap water adjusted to 25 ° C. by hand 5 times. Using this sponge, 5 sheets of both sides of a ceramic dish having a diameter of 23 cm were washed. At this time, each surface was rubbed 5 times. Immediately thereafter, 5 pieces of ceramic dishes washed with running water adjusted to 25 ° C. (4 L / min) were rubbed at a constant hand speed until the detergent was no longer squeezed. The time (seconds) until the five pieces of ceramics disappeared was used as an index of the ease of removing the pieces. If it was 45 seconds or less, preferably 40 seconds or less, it was judged as passing.

Claims (7)

(A) a sulfosuccinic acid alkyl ester represented by the following general formula (1) or a salt thereof; (b) an anionic surfactant having a hydrocarbon group having 8 to 21 carbon atoms and a sulfate ester base or a sulfonate group [ However, (except for (a)], and (c) containing 0.0001 to 0.1% by mass of an alcohol having 8 to 24 carbon atoms having a branched hydrocarbon group , [(c)] / [(a) + (B) + (c)] is a dishwashing composition for hand washing , wherein the mass ratio is 0.0001 to 0.01.

[Wherein, R ¹ and R ² are each an alkyl group having 5 to 18 carbon atoms or a hydrogen atom, and at least one of R ¹ and R ² is an alkyl group having 5 to 18 carbon atoms. That is, the case where R ¹ and R ² are hydrogen atoms at the same time is excluded. A ¹ and A ² are each independently an alkylene group having 2 to 4 carbon atoms, and x and y are average added mole numbers, and are each independently 0 to 6. M ¹ is a cation. ]   (C) is 2-ethyl-1-hexanol, 2-propylheptanol, 2-butyl-1-octanol, 2-butyloctanol, 2-pentylnonanol, 2-hexyldecanol, 2-heptylundecanol, and The dishwashing composition for washing hands according to claim 1, which is an alcohol selected from 2-octyldodecanol.   The dishwashing agent composition for hand-washing of Claim 1 or 2 which contains 1-50 mass% of (b). The dishwashing composition for hand-washing according to any one of claims 1 to 3, which contains 0.0005 to 0.045 mass% of (c).   The mass ratio of (c) / (a) is 0.0001 to 0.1. The dishwashing composition for hand washing according to any one of claims 1 to 4.   6. The dishwashing composition for hand washing according to any one of claims 1 to 5, further comprising (e) a magnesium-containing inorganic compound and / or an alkylenediamine (the alkylene group has 2 to 6 carbon atoms).   A method for washing dishes, wherein the dishes are washed by hand with a cleaning liquid using the dishwashing composition for washing hands according to any one of claims 1 to 6, and then rinsed with water.