JP5700523B2 - Dishwashing composition for hand washing - Google Patents

Description

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

  A dishwashing agent for hand washing is required to have abundant foaming at the time of washing and the persistence of the foam at the time of washing. This foamability / foam persistence is a very important physical property that correlates with detergency and washing persistence, and until now, the development of a detergent having excellent foamability / foam persistence has been mainly performed. On the other hand, with increasing awareness of water resources in recent years, it is desirable to reduce the amount of rinsing water required to remove foam from dishes and / or cleaning utensils.

  Patent Document 1 discloses a manual dishwashing composition containing a silicone polymer and a fatty acid as a foam inhibitor. Patent Document 2 discloses a liquid detergent containing a silicone foam inhibitor and a specific short-chain amine surfactant.

JP-T-2004-522817 JP 2000-5009078

  However, the compositions disclosed in Patent Documents 1 and 2 have problems in foaming and foam persistence during washing because foaming during washing is suppressed as well as during washing.

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

In the present invention, (a) a compound of the following general formula (a1) [hereinafter referred to as component (a)] is 1 to 50 mass%, (b) a fatty acid having 8 to 22 carbon atoms or a salt thereof [hereinafter referred to as (b) The ratio of the total number of moles of the compound in which R ^1a in general formula (a1) is a branched alkyl group to the total number of moles of the compound of general formula (a1) [hereinafter referred to as component (a)] Branching ratio] is 25 to 100 mol%, the mass ratio of component (b) / component (a) is 0.01 to 1, and (c) amine oxide surfactant (referred to as component (c)) ] The dishwashing agent composition for hand-washing is contained substantially.
R ^1a -O - _{[(PO) m / (EO)} n ] -SO ₃ M (a1)
[In the formula, R ^1a is an alkyl group having 10 to 24 carbon atoms, PO and EO are a propyleneoxy group and an ethyleneoxy group, respectively, m and n represent the average added mole number of PO or EO, It is a number from 0 to 1.5. M is an inorganic or organic cation. The order of addition of PO and EO does not matter. “/” Means that the addition form of PO and EO may be block or random. ]

  According to the present invention, there is provided a dishwashing agent for hand-washing that exhibits abundant foaming at the time of washing and the persistence of the foam at the time of washing, but the foam disappears instantly at the time of rinsing and the rinsing is completed with a small amount of water.

<(A) component>
The component (a) of the present invention is a compound of the general formula (a1), and a compound having a linear alkyl group or a compound having a branched alkyl group is used alone so that the branching rate is 25 to 100 mol%. Or more than one.

  Such an anionic surfactant is known to be very excellent in foaming properties, and more specifically, as the component (a) and satisfying the branching ratio, more specifically, having 10 to 24 carbon atoms, preferably An alkyl sulfate ester salt having an alkyl group having 10 to 16 carbon atoms and a branching ratio of 25 to 100 mol%, having an alkyl group having 8 to 22 carbon atoms, preferably 10 to 16 carbon atoms, and branched A polyoxyalkylene alkyl having a polyoxyalkylene group having a rate of 25 to 100 mol% and an average added mole number of a polyoxyalkylene group having 2 and / or 3 carbon atoms of the alkylene group Ether sulfate salts are preferred. As the salt, an inorganic salt selected from sodium salts, potassium salts, lithium salts, magnesium salts, and ammonium salts, and organic amine salts selected from monoethanolamine salts, diethanolamine salts, and triethanolamine salts are preferable.

  The branching rate of the component (a) is 25 to 100%, preferably 50 to 100 mol%, more preferably 80 to 100 mol%, and still more preferably 90 to 100 mol, from the viewpoint of foam disappearance at the time of rinsing. %.

  In general formula (a1), m is preferably 0 to 1.5, more preferably 0 to 1.0, still more preferably 0 to 0.5, and particularly preferably, from the viewpoints of washing performance and foam extinction. Is 0.

  In general formula (a1), n is preferably 0 to 1.5, more preferably 0 to 1.0, still more preferably 0 to 0.5, from the viewpoint of cleaning performance and foam extinction. Particularly preferred is 0.

  In the compound of the general formula (a1), the branching ratio of the component (a) is preferably 50 to 100 mol%, more preferably 80 to 100 mol%, still more preferably 90 to 100 mol%, from the viewpoint of foam disappearance. Select to be used.

  M in the general formula (a1) is an organic cation selected from an inorganic cation selected from sodium ion, potassium ion, lithium ion, magnesium ion and ammonium ion, monoethanolaminemonium ion, diethanolaminemonium ion and triethanolaminemonium ion. Of these, ammonium ions, sodium ions, potassium ions, and magnesium ions are preferred.

The method for preparing the compound of the general formula (a1) is not particularly limited. For example, after adding a predetermined amount of ethylene oxide and / or propylene oxide to the fatty alcohol represented by R ^1a —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 and / or propylene oxide 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 ^1a contains an alkyl group having a branched structure in general formula (a1), it is obtained by hydroformylating 1-alkene having 8 to 14 carbon atoms as the alcohol represented by R ^1a -OH as a raw material. Gelbe type alcohol obtained by condensing the resulting alcohol (containing 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, followed by reduction (100 mol% of the structure in which an alkyl group having 3 to 6 carbon atoms is branched at the β-position with respect to the OH group), 3,5,5-trimethylhexanol obtained by hydroformylation of a dimer of isobutene , Synthetic alcohol (branched tridecanol obtained by hydroformylation of isobutene trimer (branching rate is 100 mol%), petroleum and coal as raw materials Can be used is about 25 to 100 mole%).

  According to the hydroformylation reaction, a mixture of 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 it to the β-position is obtained. The branching rate (the branching rate of the raw material alcohol is also the ratio of the total number of moles of alcohol having a branched chain alkyl group to the total number of moles of the raw material alcohol) is a rinse when blended in the composition as the component (a) From the viewpoint of foam extinction at the time, it is 25 to 100%, preferably 50 to 100%, more preferably 90 to 100%, and particularly preferably 100%. Examples of such branched alcohols include Safol 123 (manufactured by Sasol, branching rate: 94 mol%), Safol 23 (manufactured by Sasor, branching rate: 50 mol%), and the like.

  In addition, gerbe alcohol is obtained by subjecting the aldehyde having 4 to 14 carbon atoms to aldol condensation followed by reduction treatment. Gerve alcohol is a primary alcohol having 8 to 24 carbon atoms (branching rate is 100%) in which an alkyl group having 2 to 6 carbon atoms is branched at the β-position. Examples of such a branched alcohol include Isophor 14T (manufactured by Sasol, Gerve alcohol having 14 carbon atoms).

  As the raw material alcohol of component (a) of the present invention, other than these, for example, 3,5,5-trimethylhexanol obtained by hydroformylation of isobutene dimer, and multi-branch obtained by hydroformylation of isobutene trimer Tridecanols can be mentioned, and these are polybranched primary alcohols having 9 to 15 carbon atoms, preferably 9 or 13, having 2 to 6 methyl groups branched.

<(B) component>
Component (b) 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.

  (B) 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 these, or salts thereof, more preferably lauric acid, myristic acid, coconut composition, palm oil composition, mixed fatty acid of palm kernel oil composition, or salts thereof, most preferably coconut oil composition Or a salt thereof.

<(C) component>
In the present invention, an amine oxide type surfactant usually used in a dishwashing composition for hand washing is substantially not included from the viewpoint of foam disappearance at the time of rinsing. The term “substantially free” as used in the present invention means that it may be contained within a range not impairing the effects of the present invention, and more specifically, the content in the composition. Is 0.5 mass% or less, preferably 0.3 mass% or less, more preferably 0.1 mass% or less. Specific compounds of (c) referred to in the present invention include N-alkanoylaminopropyl-N, N-dimethylamine oxide (lauroyl or myristoyl as alkanoyl), N-alkyl-N, N-dimethylamine oxide (as alkyl group). Lauryl group or myristyl group), which provides rich foaming during washing, but adversely affects foam extinction during rinsing.

<Dishwashing composition for hand washing>
The dishwashing detergent composition for hand-washing of the present invention is a relatively cleaner detergent by combining the component (a) having foamability / foam persistence and the component (b) having a defoaming effect under specific conditions. High cleaning water shows very high foaming and long-lasting foam, but if the surfactant concentration in the cleaning liquid decreases due to the addition of rinsing water after cleaning, the foam disappears instantly and a small amount of water. Too much can be completed. The reason for this is not necessarily clear, but the component (b) released from the micelles by dilution of the surfactant by rinsing has some effect on the bubbles, and the bubbles easily disappear, and the component (a) It is considered that the bubble structure itself is easily broken by the branched chain alkyl group. Although the component (b) is known as a solution property modifier, the cleaning composition of the present invention using the component provides rich foaming at the time of cleaning, and when it is rinsed, the effect of quickly defoaming is obtained. That is a surprising effect.

  The dishwashing composition for hand washing of the present invention has a component (a) of 1 to 50% by mass, preferably 10 to 40% by mass, from the viewpoint of foaming power at the time of washing, foam disappearance at the time of rinsing, and economy. More preferably, it contains 20-30 mass%. Moreover, (b) component becomes like this. Preferably it is 1-10 mass%, and also contains 2-5 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.

  Moreover, mass ratio of (b) component / (a) component is 0.01-1 from a foaming power at the time of washing | cleaning and the foam extinction property at the time of a rinse, Preferably it is 0.02-0.2. More preferably, it is 0.03-0.1.

  In the present invention, the component (c) is substantially not contained for the purpose of enhancing the foam disappearance during rinsing and reducing the amount of water used for rinsing as much as possible. The term “substantial” as used in the present invention means that it may be present at a concentration at which the foaming effect inherent in the component (c) is not shown, and is 0.5% by mass or less, preferably 0.1%. It is below mass%.

  The dishwashing detergent composition for hand washing of the present invention has (d) component (d1) magnesium-containing inorganic compound (hereinafter referred to as (d1) component) for the purpose of enhancing emulsifying power against oil stains and enhancing cleaning power. Or it is preferable to contain (d2) organic diamine [henceforth (d2) component].

  Examples of the component (d1) of the present invention include magnesium chlorides such as magnesium chloride, magnesium salts such as magnesium sulfate and magnesium nitrate, magnesium hydroxide, magnesium oxide, and the like. A compound selected from magnesium chloride and magnesium sulfate is used. More preferred is magnesium chloride, even more preferred.

  The component (d2) of the present invention is an organic diamine. C3-C12 diamine is mentioned from the point of foaming property at the time of washing | cleaning, and a bubble persistence, The primary diamine which has a C3-C12 alkylene spacer is preferable, and the alkylene spacer contains a cyclic structure. Is more preferable, the cyclic structure is more preferably a six-membered ring structure, and a diamine represented by the following formula (d2) is still more preferable. Specific examples include 1,3-bis (methylamino) cyclohexane and isophoronediamine. Among them, 1,3-bis (aminomethyl) cyclohexane is particularly preferable.

[Wherein, R ^{1d to} R ^12d are each an alkyl group having 1 to 3 carbon atoms, an aminoalkyl group having 1 to 3 carbon atoms, an amino group, or a hydrogen atom, and 2 in R ^{1d to} R ^12d. One is a group selected from an amino group and an aminoalkyl group having 1 to 3 carbon atoms. The alkyl group having 1 to 3 carbon atoms is preferably a methyl group. ]

  The dishwashing composition for hand washing of the present invention preferably contains 0.1 to 20% by mass, further 0.5 to 10% by mass, and further 1 to 6% by mass of component (d). The mass ratio of component (b) / component (d) is preferably 0.1 to 10, more preferably 0.5 to 8, and still more preferably 1 to 6. From the viewpoint of foam extinction at the time of rinsing, the mass ratio of the component (b) / (d) is preferably 0.1 or more, and is preferably 10 or less from the viewpoint of foaming power at the time of washing and blending stability. In addition, although (d1) component may contain crystallization water among (d) components, the said mass% and mass ratio are based on the mass except crystallization water. In addition, when the component (d) is the component (d1), the content of the component (d1) is preferably 1 to 20% by mass, more preferably 2 to 2% in the composition from the viewpoint of detergency. It is 15 mass%, More preferably, it is 3-10 mass%.

  In the present invention, the total mass of the component (a) and the component (b) with respect to the total surfactant content in the composition is preferably 60 to 100% by mass, preferably 80 to 100% by mass, more preferably 90 to 90%. 100% by mass.

  Surfactants that can be used in addition to component (a) and component (b) include (e) alkyl glyceryl ether type surfactants (hereinafter referred to as component (e)), and (f) (f1 ) Amphoteric surfactants, and (f2) surfactants selected from alkanolamide surfactants (hereinafter referred to as component (f)) and the like.

The dishwashing composition for hand-washing of the present invention is instantly free of moisture when rinsed, and is capable of completing rinsing with a small amount of water. As the component (e), an alkyl group having 6 to 18 carbon atoms in the alkyl group is used. 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 still more 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 10 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.

  The content of the component (e) is preferably 0.5 to 20% by mass, more preferably 1 to 15% by mass and 2 to 10% by mass in the composition from the viewpoint of cleaning performance.

  In the present invention, as the component (f), one or more kinds selected from (f1) amphoteric surfactants (hereinafter referred to as (f1) components) and alkanolamide surfactants (hereinafter referred to as (f2) components). Surfactant can be mix | blended in the range which does not impair the effect of this invention. The component (f) preferably has an alkyl group having 8 to 18 carbon atoms.

  In the present invention, the component (f1) may be used as a surfactant having a foam increasing effect. Examples of the component (f1) include sulfobetaine surfactants, carbobetaine surfactants, and imidazoline surfactants.

  A sulfobetaine-type surfactant is preferred in that it improves foaming properties and foam persistence during washing, but does not impair instantaneous foam disappearance during rinsing. Examples of the sulfobetaine surfactant include N-alkyl-N, N-dimethyl-N-sulfopropylammonium sulfobetaine having an alkyl group having 10 to 18 carbon atoms, and N-alkyl having an alkyl group having 10 to 18 carbon atoms. -N, N-dimethyl-N- (2-hydroxysulfopropyl) ammonium sulfobetaine, N-alkanoylaminopropyl-N, N-dimethyl-N-sulfopropylammonium sulfobetaine whose alkanoyl group has 10 to 18 carbon atoms, N-alkanoylaminopropyl-N, N-dimethyl-N- (2-hydroxysulfopropyl) ammonium sulfobetaine having an alkanoyl group having 10 to 18 carbon atoms is preferred. (F1) Content of a component becomes like this. Preferably it is 0.5-20 mass% in a composition, More preferably, it is 1-15 mass%, More preferably, it is 2-10 mass%. The mass ratio of (f1) component / [(a) component + (f1) component] is preferably 0.01 from the viewpoint of improvement in foamability / foam persistence during washing and foam extinction during rinsing. It is -0.2, More preferably, it is 0.02-0.1.

  In the present invention, the component (f2) may be used as a surfactant having a foam increasing effect. Examples of the component (f2) include amidated products of alkanolamines such as monoethanolamine, diethanolamine, and methylmonoethanolamine with fatty acids such as lauric acid and myristic acid. In view of the defoaming effect at the time of rinsing, the content of the component (f2) is preferably 0 to 10% by mass, more preferably 0 to 5% by mass, and still more preferably 0 to 1% by mass, and is substantially free. It is particularly preferred.

  The dishwashing detergent composition for hand washing of the present invention preferably contains a hydrotrope [hereinafter referred to as component (g)] for the purpose of improving storage stability. As the hydrotrope, toluenesulfonic acid, xylenesulfonic acid, cumenesulfonic acid and their sodium, potassium or magnesium salts are preferable, and p-toluenesulfonic acid is particularly preferable. The content of the component (g) is preferably 0.5 to 15% by mass, more preferably 1 to 10% by mass, and still more preferably 1.5 to 5% by mass in the composition from the viewpoint of storage stability. is there.

  In the present invention, for the purpose of improving storage stability, a solvent (hereinafter referred to as component (h)) can be contained as a viscosity modifier. 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 (h) is preferably 3 to 30% by mass, more preferably 5 to 20% by mass, and still more preferably 10 to 15% by mass in the composition from the viewpoint of storage stability.

  In the dishwashing detergent composition for hand washing of the present invention, a polymer for preventing gelation, for example, a gelation preventing polymer described in JP-A-11-513067 (hereinafter referred to as component (i)). In view of viscosity control and storage stability, it is preferable to add polyalkylene glycol. Specific examples of the polyalkylene glycol for preventing gelation include polypropylene glycol and polyethylene glycol having a weight average molecular weight of 200 to 3000 determined by gel permeation chromatography using polyethylene glycol as a standard. it can. The content of the component (i) is preferably 0.05 to 10% by mass, more preferably 0.1 to 5% by mass, and particularly preferably 0.5 to 3% by mass in the composition from the viewpoint of preventing gelation. %.

  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 is preferably an aqueous solution. As the water to be used, deionized water, distilled water, 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 10, more preferably 4.5 to 9, and still more preferably from the viewpoint of foaming power during washing and foam disappearance during rinsing. The pH is adjusted to 5 to 8 by adjusting an inorganic acid selected from sulfuric acid, hydrochloric acid and phosphoric acid, an organic acid selected from citric acid, malic acid, maleic acid, fumaric acid and succinic acid, hydroxylated It is carried out using an inorganic alkaline agent such as sodium, potassium hydroxide, magnesium hydroxide, sodium carbonate, 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 (d), such as magnesium hydroxide, are handled as component (d).

  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. Viscosity can be adjusted with (g) component, (h) component, (i) component, etc.

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

  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 component (a), component (b), component (c), component (e) and component (f) in the cleaning liquid retained by the flexible material is preferably 1,000 to 30,000 ppm, more Preferably it is 1,000-20,000 ppm, More preferably, it is 2,000-10,000 ppm from the point of high foaming property 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 hand washing detergent composition is used.

  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 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.

<Compounding ingredients>
A-1: linear / branched mixed alcohol [Isalchem 123 (containing 12 alkyl groups and 13 alkyl groups, branching rate: 94 mol%) manufactured by Sasol, sulfuric acid with sulfur trioxide Compound neutralized with sodium hydroxide (average molecular weight: 295)
A-2: linear / branched mixed alcohol [Safol 23 manufactured by Sasol Co., Ltd. (containing 12 alkyl groups and 13 alkyl groups, branching rate: 50 mol%)] sulfuric acid with sulfur trioxide Compound neutralized with sodium hydroxide (average molecular weight: 291)
A-3: mixed alcohol of straight chain / branched chain [Isalchem 11 (containing 99.7% by mass of alkyl group having 12 carbon atoms, branching rate of 99 mol%) manufactured by Sasol Co., Ltd.] with sulfur trioxide Compound neutralized with sodium hydroxide (average molecular weight: 277)
A-4: mixed alcohol of straight chain / branched chain [NEODOL23 manufactured by Shell (containing alkyl group of 12 carbon atoms and alkyl group of 13 carbon atoms, branching rate: 20 mol%) with sulfur trioxide] Compound neutralized with sodium hydroxide (average molecular weight: 296)
A-5: Sodium lauryl sulfate (branching rate is 0 mol%)

<Foaming power (initial foam amount) and foam disappearance>
The composition was diluted 30 times with 3.5 ° dH hard water, and 3 g of foam was produced in a 500 ml graduated cylinder (material: glass, manufactured by ASONE) using a pump former (one 200 mesh). The volume was recorded as the foaming power (initial foam amount). The lower surface of the handmade water bottle is placed on the upper end of the graduated cylinder, and the water is immediately filled with 100 ml of 3.5 ° dH hard water, and the hard water is added to the foam as it is through the water. The amount of foam after adding 100 ml) was confirmed, and the rate of change in the amount of foam represented by the following formula was determined. In this evaluation, it can be determined that rapid bubble disappearance by dilution (rinsing) can be achieved if the rate of change in the amount of foam is 30% or less.
Foam amount change rate (%) = (foam amount after adding 100 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 of Examples 1 to 5 and Comparative Example 1 in Table 1, when the component (a) and the component (b) are included, the foam amount change rate is low, the foam disappearance is excellent, and the component (b) is not included. It can be seen that the rate of change in the amount of foam is high and the foam disappearance is poor. Moreover, from the results of Examples 1 to 5 and Comparative Examples 2 to 4, it can be seen that when the branching ratio of the component (a) is less than 25 mol%, the foam amount change rate is high and the foam disappearance is poor.

  The dishwashing composition for hand washing of the present invention exhibits rich foaming during washing and the persistence of foaming during washing, but the foam disappears instantly during rinsing and the rinsing with a small amount of water is completed. Suitable as a composition.

Claims (12)

(A) 1-50 mass% of the compound of the following general formula (a1) [hereinafter referred to as (a) component], (b) a fatty acid having 8 to 22 carbon atoms or a salt thereof (hereinafter referred to as (b) component). And the ratio of the total number of moles of the compound wherein R ^1a in the general formula (a1) is a branched alkyl group to the total number of moles of the compound of the general formula (a1) is 25 to 100 mol%, (b) A dishwashing composition for hand-washing, wherein the mass ratio of component / (a) component is 0.03 to 1, and (c) is substantially free of amine oxide surfactants.
R ^1a -O - _{[(PO) m / (EO)} n ] -SO ₃ M (a1)
[In the formula, R ^1a is an alkyl group having 10 to 24 carbon atoms, PO and EO are a propyleneoxy group and an ethyleneoxy group, respectively, m and n represent the average added mole number of PO or EO, It is a number from 0 to 1.5. M is an inorganic or organic cation. The order of addition of PO and EO does not matter. “/” Means that the addition form of PO and EO may be block or random. ] The ratio of the total number of moles of the compound in which R ^1a in the general formula (a1) is a branched alkyl group to the total number of moles of the compound of the general formula (a1) is 50 to 100 mol%. Dishwashing composition. The component (b) is lauric acid, myristic acid, a mixed fatty acid having a palm composition, a mixed fatty acid having a palm oil composition, a mixed fatty acid having a palm kernel oil composition, or a salt thereof. Agent composition. (D) containing magnesium inorganic compounds and a compound selected from an organic diamine [hereinafter, (d) referred to as component] contain, claim 1-3 is 1 to 10 weight ratio of component (b) / (d) component The dishwashing agent composition for hand-washing of any one of 1 . The organic dish diamine of (d) component is a diamine represented by a following formula (d2), The dishwashing agent composition for hand-washing of Claim 4.

[In the formula, R ^1d ~ R ^12d Are each an alkyl group having 1 to 3 carbon atoms, an aminoalkyl group having 1 to 3 carbon atoms, an amino group, or a hydrogen atom, and R ^1d ~ R ^12d Two of these are groups selected from an amino group and an aminoalkyl group having 1 to 3 carbon atoms. ] 6. The dishwashing composition for hand washing according to claim 4 or 5 , wherein the component (d) is a compound selected from magnesium chloride, magnesium sulfate, 1,3-bis (methylamino) cyclohexane and isophoronediamine. The dishwashing composition for hand washing according to any one of claims 4 to 6 , wherein the component (d) is a compound selected from magnesium chloride and 1,3-bis (methylamino) cyclohexane. (D) The component is a 1, 3- bis (methylamino) cyclohexane, The dishwashing agent composition for hand-washing of any one of Claims 4-7 . (D) The dishwashing agent composition for hand-washing of any one of Claims 4-8 containing 1-6 mass% of components. The component (a) is R in the general formula (a1) ^1a The dishwashing composition for hand washing according to any one of claims 1 to 9, wherein-is a compound having an alkyl group having 10 to 16 carbon atoms. (A) The component is (1) an alcohol obtained by hydroformylating a 1-8 alkene having 8 to 14 carbon atoms, and (2) a Gerve type obtained by condensing an aldehyde having 4 to 8 carbon atoms and then reducing it. A raw material alcohol selected from alcohol, (3) 3,5,5-trimethylhexanol obtained by hydroformylation of dimer of isobutene, and (4) multi-branched tridecanol obtained by hydroformylation of isobutene trimer The dishwashing composition for hand-washing in any one of Claims 1-10 which is a compound obtained by this. (C) The dishwashing detergent composition for hand-washing of any one of Claims 1-11 whose content of an amine oxide type surfactant is 0.5 mass% or less.