JP5272676B2 - Cleaning composition - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a detergent composition for a body and hair such as a body soap, hand soap, facial wash and hair shampoo having excellent time stability and high viscosity retention in temperature change, independent of temperature of using environment and giving no slimy feeling in use. <P>SOLUTION: The detergent composition comprises (a) 1-5 mass% of a fatty acid alkyleneoxide derivative expressed by formula (1): R<SP>1</SP>O(EO)x(BO)y(EO)zH (wherein, R<SP>1</SP>is 8-14C alkyl or the like, EO is oxyethylene, BO is oxybutylene, 1&le;y&le;3, and 0&le;x+z&le;3), (b) 0.5-3 mass% of a polyoxyalkylene polyol isostearic acid ester expressed by formula (2): Z-(O[(EO)m(AO)n]-R<SP>2</SP>)a (wherein, Z is a residue without a hydroxyl group comprising a sugar skeleton having a ring acetal structure having 6-18C and 3-12 hydroxyl groups, 3&le;a&le;12, EO is oxyethylene, AO is 3-4C oxyalkylene, R<SP>2</SP>is an isostearic acid residue or hydrogen, esterification ratio is 35-100%, 12&le;m+n&le;70, m/(m+n)&ge;0.8), (c) 1-10 mass% of a taurine derivative expressed by formula (3): R<SP>3</SP>CONR<SP>4</SP>C<SB>2</SB>H<SB>4</SB>SO<SB>3</SB>M (wherein, R<SP>3</SP>CO is 6-10C acyl, R<SP>4</SP>is hydrogen or 1-3C alkyl and M is hydrogen or the like), and (d) at least one kind of amphoteric surfactants selected from the group consisting of alkylbetaine-type amphoteric surfactants and alkylamidobetaine-type amphoteric surfactants; wherein a+b+c+d is 10-30 mass%, mass ratio of a/b is 1/1 to 4/1, mass ratio of c/d is 1/3 to 3/1, and mass ratio of c to the total components c/(a+b+c+d) is &gt;0.2. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a detergent composition for body and hair such as body soap, hand soap, facial cleanser, hair shampoo and the like. More specifically, the present invention relates to a cleaning composition that is excellent in stability with time, has a high viscosity retention rate with a change in temperature, does not depend on the temperature of the use environment, and does not become sticky during use.

Detergent compositions such as hair shampoos and body soaps have traditionally been required to have excellent foaming performance, foam quality, creamy, excellent washing without rinsing during rinsing, and good foam removal. Various cleaning compositions have been developed.
Such a detergent composition is required to have a viscosity suitable for the intended use. For example, the hair shampoo is 1,000 to 3,000 (mPa · s), and the body soap is 500 to 1,000 for reasons such as not discharging from the pump container or flowing down without staying on the towel sponge. (MPa · s), kitchen detergents require a wide viscosity of 200 to 400 (mPa · s).
In general, the viscosity of a cleaning composition is adjusted with a combination of surfactants, a thickener such as alkanolamide, and a polymeric thickener (crosslinked polycarboxy polymer, carboxyvinyl polymer, alkylglycoside, etc.). . However, in the case of increasing the viscosity by a combination of surfactants, an anionic surfactant and an amphoteric surfactant are combined. However, in order to produce a sufficient viscosity, a lot of amphoteric surfactant is blended and becomes slim during use. There is a case. When a thickener such as monoethanolamide or diethanolamide is frequently used, stability at low temperatures may be deteriorated or foamability may be reduced. In addition, when a large amount of a polymeric thickener is blended, there are cases where the stringing of the cleaning agent and the wetness during use are affected.

  For this reason, there has been a demand for a detergent composition that is less sticky during use and has good rinsing properties and feel after use. As an example relating to such a detergent composition, Patent Document 1 discloses a detergent composition characterized in that an aliphatic acylamino acid-based ionic surfactant and an amphoteric surfactant have a specific ratio and a specific pH. Patent Document 2 discloses a detergent composition containing an acyliminodiacetic acid type surfactant and at least one selected from acylalkyl taurine compounds or acylalkyl neutral amino acid compounds in a specific ratio. A detergent composition containing a specific ratio of an acylamino acid salt having 6 to 10 carbon atoms in the acyl group and an anionic surfactant having a sulfate group or a sulfonate group is disclosed. In Patent Document 4, acylalkyl taurine salts and alkyliminodiacetic acid types are well known as weakly acidic surfactants, but have a tendency to lower the viscosity in the compounding system. A fatty acid alkylene oxide derivative is disclosed as a sticking agent.

However, these detergent compositions are less sticky when used and have good rinsability and feel after use, but the viscosity becomes lower when the temperature of the use environment is higher, and the discharge from the nozzle is more frequent. There were times when it fell out of my hand. In addition, even if there is sufficient storage stability at room temperature, there are problems such that when the temperature rises depending on the storage environment, the viscosity decreases, and sufficient storage stability may not be satisfied under that environment. In particular, recently, the number of bathrooms equipped with heating has increased, and the use temperature has become higher than the conventional room temperature, causing a problem that the viscosity during use and the viscosity during storage are lowered.
JP 2000-248300 A JP 2002-338993 A JP 2006-273770 A JP 2005-200640 A

  The present invention is excellent in stability over time, has a high viscosity retention rate with changes in temperature, does not depend on the temperature of the use environment, and does not have a sliminess during use, such as body soap, hand soap, face wash, hair shampoo, etc. It is to provide a cleaning composition for the body and hair.

The present inventor conducted research to solve the above-mentioned problems, and as a result, the following components (a), (b), (c), and (d) were combined at a specific ratio to achieve the target cleaning agent. A composition was obtained. That is, the present invention
(A) 1 to 5% by mass of the fatty acid alkylene oxide derivative represented by the formula (1), (b) 0.5 to 3% by mass of the polyoxyalkylene polyol isostearic acid ester represented by the formula (2), (c 1) at least one amphoteric surfactant selected from the group consisting of 1 to 10% by mass of a taurine derivative represented by formula (3) and (d) an alkylbetaine-type amphoteric surfactant or an alkylamidobetaine-type amphoteric surfactant. The total of a + b + c + d is 10 to 30% by mass, the mass ratio a / b of a and b is 1/1 to 4/1, and the mass ratio c / d of c and d is 1/3 to 3 / 1. A cleaning composition, wherein the mass ratio of c to the total amount is c / (a + b + c + d)> 0.2,
(A) R ¹ O (EO) x (BO) y (EO) zH (1)
[In the formula (1), R ¹ represents a group selected from an alkyl group having 8 to 14 carbon atoms, an alkenyl group, and an acyl group, EO represents an oxyethylene group, BO represents an oxybutylene group, and x, y And z represent the average number of moles added, and 1 ≦ y ≦ 3 and 0 ≦ x + z ≦ 3].
(B) Z- (O [( EO) m (AO) n] -R 2) a (2)
[In the formula (2), Z is a residue obtained by removing a hydroxyl group from a sugar skeleton having a cyclic acetal structure having 6 to 18 carbon atoms and 3 to 12 hydroxyl groups, and EO is an oxyethylene group. AO is an oxyalkylene group having 3 to 4 carbon atoms, R ² is an isostearic acid residue or a hydrogen atom and the esterification rate is 35 to 100%. m and n are 12 ≦ m + n ≦ 70 and m / (m + n) ≧ 0.8 in terms of the average added mole number of oxyethylene group and oxyalkylene group. The oxyethylene group and oxyalkylene group may be added in a block form or randomly. ]
(C) R ³ CONR ⁴ C ₂ H ₄ SO ₃ M (3)
[In the formula (3), R ³ CO is an acyl group having 6 to 10 carbon atoms, R ⁴ is hydrogen or an alkyl group having 1 to 3 carbon atoms, M is hydrogen, alkali metal, alkaline earth metal, ammonium, or organic ammonium. , Basic amino acids, acidic or neutral amino acids, or alkali metal salts thereof, taurine or N-methyl taurine, or alkali metal salts thereof. ]
It is.

  The cleaning composition of the present invention is excellent in stability over time, has a high viscosity retention rate with changes in temperature, does not depend on the temperature of the use environment, and does not become sticky during use.

Hereinafter, the present invention will be described in more detail.
<Fatty acid alkylene oxide derivative Hereinafter also referred to as component a>
The component a used in the present invention is a fatty acid alkylene oxide derivative represented by the formula (1).
R ¹ O (EO) x (BO) y (EO) zH (1)
[In the formula (1), R ¹ represents a group selected from an alkyl group having 8 to 14 carbon atoms, an alkenyl group, and an acyl group, EO represents an oxyethylene group, BO represents an oxybutylene group, and x, y And z each represent an average added mole number, and 1 ≦ y ≦ 3 and 0 ≦ x + z ≦ 3. ]

R ¹ in formula (1) is an alkyl group, an alkenyl group, and an acyl group having 8 to 14 carbon atoms, and may be linear or branched. R ¹ is preferably an alkyl group having 8 to 12 carbon atoms, an alkenyl group, and an acyl group, and more preferably an acyl group having 12 carbon atoms. When the carbon number of R ¹ is less than 8, the viscosity retention rate due to temperature change becomes poor, and when the carbon number exceeds 14, the viscosity decreases with time at high temperature and the stability of the composition becomes poor. EO represents an oxyethylene group, BO represents an oxybutylene group, and x, y, and z each represent an average number of added moles, and 1 ≦ y ≦ 3. The average addition mole number y of an oxybutylene group is 1-3, Preferably it is 1-2. When y is 1 to 3, the viscosity retention rate at a temperature change is high, and the stability over time at a high temperature (35 ° C.) is also excellent. The average addition mole number of oxyethylene group x and z are 0 ≦ x + z ≦ 3, more preferably 0 ≦ x ≦ 2, 0 ≦ z ≦ 2, 0 ≦ x + z ≦ 2, and more preferably x = z. = 0. When x + z is 3 or more, it becomes slippery during use.
In the present invention, the component a is contained in an amount of 1 to 5% by mass, preferably 2 to 3.5% by mass. If it is less than 1% by mass, the viscosity retention rate due to temperature change will be low, and the viscosity will decrease with time at high temperature, resulting in poor stability of the composition.

<Polyoxyalkylene polyol isostearic acid ester, hereinafter also referred to as component b>
The component b used in the present invention is a polyoxyalkylene polyol isostearic acid ester represented by the formula (2).
Z- (O [(EO) m (AO) n] -R 2) a (2)
[In the formula (2), Z is a residue obtained by removing a hydroxyl group from a sugar skeleton having a cyclic acetal structure having 6 to 18 carbon atoms and 3 to 12 hydroxyl groups, and EO is an oxyethylene group. AO is an oxyalkylene group having 3 to 4 carbon atoms, R ² is an isostearic acid residue or a hydrogen atom and the esterification rate is 35 to 100%. m and n are 12 ≦ m + n ≦ 70 and m / (m + n) ≧ 0.8 in terms of the average added mole number of oxyethylene group and oxyalkylene group. The oxyethylene group and oxyalkylene group may be added in a block form or randomly. ]

  Z in the formula (2) is a residue obtained by removing a hydroxyl group from a sugar skeleton having a cyclic acetal structure having 6 to 18 carbon atoms and a hydroxyl group of 3 to 12 and has lost reducing properties with a reducing sugar derivative. Residue, or non-reducing sugar residue. Residues that have been reduced in reducing sugar derivatives include monosaccharides such as methyl glucoside, ethyl glucoside, decyl glucoside, glyceryl glucoside, capryl glucoside, polyoxyethylene alkyl glucoside, alkyl mannoside, and mixtures of these saccharides. Residue. Examples of non-reducing sugar residues include disaccharides such as sucrose, diglucoside, trehalose, maltitol, chitobiose, and lactose and their derivative residues, and trisaccharides such as triglucoside and raffinose and their derivative residues. Preferably, it is a residue having 6 to 16 carbon atoms and 4 to 8 hydroxyl groups, such as alkyl glucoside, trehalose, and maltose, and more preferably an alkyl glucoside residue having 1 to 4 carbon atoms. Residues with a large number of carbon atoms or hydroxyl groups such as stachyose cause a feeling of use, and a residue with a small number of carbon atoms or hydroxyl groups has a poor viscosity retention rate due to temperature change.

R ² in the formula (2) is an isostearic acid residue or a hydrogen atom. The esterification rate of the formula (2) is 35 to 100%, preferably 50, where the esterification rate is the ratio of the number of moles esterified to the hydroxyl group of the polyhydric alcohol residue. ~ 85%. When the esterification rate is lower than 35%, the viscosity retention rate at a temperature change is low, and the stability with time at high temperature (35 ° C.) is also deteriorated. The isostearic acid is a fatty acid having 18 carbon atoms containing branched structures at various sites such as 16-methylheptadecanoic acid, 2-heptylundecanoic acid, 2-octyldecanoic acid, and a mixture thereof. m and n are the average added moles of oxyethylene group and oxyalkylene group, and 12 ≦ m + n ≦ 70, m / (m + n) ≧ 0.8, preferably 20 ≦ m + n ≦ 60 and n = 0. When m + n is less than 12, the viscosity retention at a temperature change is low, and when m + n is more than 70, and when m / (m + n) is less than 0.8, it becomes sticky during use. . The oxyethylene group and oxyalkylene group may be added in a block form or randomly. (M + n) × a, which is the total number of moles added of the oxyalkylene group, is preferably 50 to 240, more preferably 50 to 200.
Moreover, b component contains 0.5-3 mass%, Preferably 0.8-2 mass% is contained. If it is less than 0.5% by mass, the viscosity retention rate at a temperature change is low, the stability with time at high temperature (35 ° C.) is poor, and if it exceeds 3% by mass, the composition becomes wet during use.

<Taurine derivative hereinafter also referred to as component c>
The component c used in the present invention is a taurine derivative represented by the formula (3).
R ³ CONR ⁴ C ₂ H ₄ SO ₃ M (3)
[In the formula (3), R ³ CO is an acyl group having 6 to 10 carbon atoms, R ⁴ is hydrogen or an alkyl group having 1 to 3 carbon atoms, M is hydrogen, alkali metal, alkaline earth metal, ammonium, or organic ammonium. , Basic amino acids, acidic or neutral amino acids, or alkali metal salts thereof, taurine or N-methyl taurine, or alkali metal salts thereof. ]

R ³ CO in the formula (3) is an acyl group having 6 to 10 carbon atoms, and may be linear or branched. When the number of carbon atoms is 5 or less, the temporal stability at high temperature (35 ° C.) is poor, and when the number of carbon atoms is 11 or more, it becomes slippery during use. R ⁴ in the formula (3) is hydrogen or an alkyl group having 1 to 3 carbon atoms. Examples of the alkyl group having 1 to 3 carbon atoms include a methyl group, an ethyl group, and a propyl group. M in Formula (3) is an alkali metal, alkaline earth metal, ammonium, organic ammonium, basic amino acid, acidic or neutral amino acid, or an alkali metal salt thereof, taurine or N-methyltaurine, or an alkali thereof. Metal salts such as hydrogen, sodium, potassium, 1/2 calcium, 1/2 magnesium, ammonium, triethanolammonium, lysine, arginine, glycine, glutamic acid, sodium glycine, potassium glycine, disodium glutamate, taurine, N- Examples include methyl taurine, taurine sodium, taurine potassium, N-methyl taurine sodium and the like.
The component c is contained in an amount of 1 to 10% by mass, preferably 1 to 5% by mass. Outside this range, the viscosity retention rate with temperature change is low, and the stability over time at high temperature (35 ° C.) also deteriorates. Viscosity retention with temperature change is low, and viscosity decreases with time at high temperature, resulting in poor stability of the composition

<Alkylbetaine-type amphoteric surfactant, alkylamidobetaine-type amphoteric surfactant, hereinafter also referred to as component d>
The component d used in the present invention is at least one amphoteric surfactant selected from the group consisting of alkylbetaine-type amphoteric surfactants and alkylamidobetaine-type amphoteric surfactants.

<Cleaning agent composition>
The cleaning composition of the present invention contains a component to d component. The sum of component a, component b, component c and component d is 10 to 30% by mass, the mass ratio a / b between a and b is 1/1 to 4/1, and the mass ratio c between c and d. / D is 1/3 to 3/1, and the mass ratio of c to the total amount is c / (a + b + c + d)> 0.2.

  When the total mass of the a component to the d component is less than 10% by mass, the viscosity retention rate at a temperature change is lowered, and the viscosity is lowered with time at a high temperature, and the stability of the composition is deteriorated. When it exceeds 30 mass%, it will become economically high. When the mass ratio a / b of the a component and the b component is less than 1/1, the viscosity retention rate at a temperature change becomes low, the viscosity decreases with time at high temperature, and the stability of the composition deteriorates. If it exceeds, it will become slippery during use. When the mass ratio c / d between the component c and component d is less than 1/3, the viscosity decreases with time at high temperatures, and the composition becomes less stable. When the mass ratio c / (a + b + c + d) with respect to the total amount of c is 0.2 or less, the viscosity decreases with time at high temperatures and the stability of the composition deteriorates.

  In addition, the viscosity retention referred to in the present invention is obtained by dividing the viscosity (mPa · s) at 35 ° C. of the cleaning composition by the viscosity (mPa · s) at 25 ° C. of the cleaning composition, The viscosity retention rate is 0.8 or more, and a sufficient viscosity is maintained without depending on the temperature of the use environment.

  In the cleaning composition of the present invention, additives commonly used in cleaning agents such as lower alcohols, polyhydric alcohols, hydrocarbon oils, natural fats and oils, synthetic triglycerides, ester oils, waxes, silicone derivatives, Amphoteric surfactants, nonionic surfactants, cationic surfactants, water-soluble polymers, organic or inorganic salts, pH adjusters, bactericides, chelating agents, antioxidants, UV absorbers, vitamins, animals and plants You may mix | blend the natural extract derived from, a pigment | dye, a pigment, a fragrance | flavor, etc. in the range which does not impair the performance of this invention.

Next, the present invention will be described in more detail by way of examples.
The liquid whole body washing | cleaning agent composition prepared the component described in Table 1-Table 4 in the ratio of Table 5. FIG. The prepared liquid whole body detergent composition was evaluated for the viscosity retention rate and the stability over time (viscosity and odor) using the following evaluation criteria. The results are shown in Table 5.

(1) Viscosity retention rate Using a B-type viscometer (manufactured by TOKIMEC), each liquid whole body detergent composition is held at 25 ° C. and 35 ° C., and the viscosity at each temperature is measured in a measurement time of 100 seconds, The viscosity retention represented by the formula (4) was calculated and evaluated in the following three stages.
Viscosity retention = viscosity at 35 ° C. (mPa · s) / viscosity at 25 ° C. (mPa · s) (4)
◯: When the viscosity retention ratio is 0.8 or more Δ: When the viscosity retention ratio is 0.3 or more and less than 0.8 ×: When the viscosity retention ratio is less than 0.3

(2) Stability over time (viscosity) at high temperature (35 ° C)
Immediately after preparation, the viscosity of each liquid whole body cleaning composition was measured at 35 ° C. for a measurement time of 100 seconds, and each liquid whole body cleaning composition stored for 3 months was measured for viscosity at 35 ° C. for a measurement time of 100 seconds. The stability with time (viscosity) was calculated by the following formula, and evaluated in the following three stages.
Stability over time (viscosity) = viscosity after 3 months (mPa · s) / viscosity immediately after (mPa · s)
○: When the viscosity retention ratio is 0.9 or more Δ: When the viscosity retention ratio is 0.7 or more and less than 0.9 ×: When the viscosity retention ratio is less than 0.7

(3) Stability over time at high temperature (35 ° C) (odor)
20 males and females (20 to 40 years old) are panelists, and each composition is stored for 3 months. The odor is determined as follows, and the average value of 20 persons is obtained and rounded off to one decimal place. 15 The above point was evaluated as a composition having good aging stability at high temperature (35 ° C.) with respect to odor.
20 points: When there is no odor at all.
15 points: When there is almost no odor.
10 points: When a little odor is felt.
5 points: If you feel odor.
0 points: When the odor is very felt.

(4) Feeling of use (slackness during use)
20 males and females (20 to 40 years old) are panelists, and the forearms and fingers are washed with 3 g of each composition, and the wetness when rinsing with tap water is determined as follows. An average value was calculated and one decimal place was rounded off, and 15 or more points were evaluated as being good compositions with low luster when used.
20 points: When it is felt that there is no sliminess during use.
15 points: When it feels that there is almost no stickiness at the time of use.
10 points: When you feel that there is a little stickiness during use.
5 points: When you feel that there is a stickiness during use.
0 point: When it feels that there is very stickiness at the time of use.

Claims (1)

(A) 1 to 5% by mass of the fatty acid alkylene oxide derivative represented by the formula (1), (b) 0.5 to 3% by mass of the polyoxyalkylene polyol isostearic acid ester represented by the formula (2), (c 1) at least one amphoteric surfactant selected from the group consisting of 1 to 10% by mass of a taurine derivative represented by formula (3) and (d) an alkylbetaine-type amphoteric surfactant or an alkylamidobetaine-type amphoteric surfactant. The total of a + b + c + d is 10 to 30% by mass, the mass ratio a / b of a and b is 1/1 to 4/1, and the mass ratio c / d of c and d is 1/3 to 3 / 1. A cleaning composition having a mass ratio of c / (a + b + c + d)> 0.2 to the total amount of 1 and c.
(A) R ¹ O (EO) x (BO) y (EO) zH (1)
[In the formula (1), R ¹ represents a group selected from an alkyl group having 8 to 14 carbon atoms, an alkenyl group, and an acyl group, EO represents an oxyethylene group, BO represents an oxybutylene group, and x, y And z each represent an average added mole number, and 1 ≦ y ≦ 3 and 0 ≦ x + z ≦ 3. ]
(B) Z- (O [( EO) m (AO) n] -R 2) a (2)
[In the formula (2), Z is a residue obtained by removing a hydroxyl group from a sugar skeleton having a cyclic acetal structure having 6 to 18 carbon atoms and 3 to 12 hydroxyl groups, and EO is an oxyethylene group. AO is an oxyalkylene group having 3 to 4 carbon atoms, R ² is an isostearic acid residue or a hydrogen atom and the esterification rate is 35 to 100%. m and n are 12 ≦ m + n ≦ 70 and m / (m + n) ≧ 0.8 in terms of the average added mole number of oxyethylene group and oxyalkylene group. The oxyethylene group and oxyalkylene group may be added in a block form or randomly. ]
(C) R ³ CONR ⁴ C ₂ H ₄ SO ₃ M (3)
[In the formula (3), R ³ CO is an acyl group having 6 to 10 carbon atoms, R ⁴ is hydrogen or an alkyl group having 1 to 3 carbon atoms, M is hydrogen, alkali metal, alkaline earth metal, ammonium, or organic ammonium. , Basic amino acids, acidic or neutral amino acids, or alkali metal salts thereof, taurine or N-methyl taurine, or alkali metal salts thereof. ]