JP2016113422A - Surfactant composition - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a surfactant composition that provides quick foaming and stiff foam when foaming.SOLUTION: The invention provides a surfactant composition containing a component (a) consisting of a compound represented by the formula (1) of Claim 1, and a component (b) consisting of a compound represented by a formula (2) and/or a compound represented by a formula (3) of Claim 1, wherein the mass ratio [(a)/(b)] of the component (a) to the component (b) is 1/1-1/10.SELECTED DRAWING: None

Description

  The present invention relates to a surfactant composition that provides quick foaming properties and foam stiffness when freshly foamed.

Conventionally, various surfactants have been used in detergent compositions in accordance with their purposes and applications. For example, for the performance of surfactants used for detergents for the body and hair, quick foaming that immediately foams, and the firmness of foam that has fine foam quality and elasticity are important. Such a stiff foam cushion reduces the entanglement between the hairs to be cleaned and the friction between the skin and the towel, and allows gentle washing.
However, when the temperature of the water used for the foam becomes high, the foam film becomes thinner, and the foam film may be weakened or easily broken. In general, relatively warm water is often used for washing the body and hair, so it is important to obtain stiff foam that sufficiently maintains the foam film even in such an environment.

In response to these demands, sulfate-type surfactants and fatty acid salts such as alkyl sulfates and polyoxyethylene alkyl sulfates have been used in the past, and in recent years amino acids that have a favorable feeling of use such as being unsuccessful after washing are obtained. System surfactants have been used.
However, such a surfactant alone has a good rapid foaming property, but since there is no foaminess, attempts have been made to improve it in combination with other components.
For example, Patent Document 1 discloses a composition in which an N-acylmethyltaurine salt, an acylalanine salt, and an amphoteric surfactant are combined. However, this composition has good quick foaming properties at the time of washing, but the stiffness of the foam is not sufficient.
Patent Document 2 includes a composition containing an N-acyl glutamate, a higher fatty acid salt, and a polyamino acid. Patent Document 3 includes N-lauroyl-L-glutamate sodium, N- A composition containing sodium cocoyl-N-methyltaurine, a polymer compound, and glycerin is mentioned. However, this composition has a good foam quality, but sometimes has a fast foaming property.

JP 2003-34623 A JP 2009-196971 A JP 2005-298455 A

  It is an object of the present invention to provide a surfactant composition that provides quick foaming properties and foaminess when foamed.

  As a result of intensive studies, the present inventors have obtained a surfactant composition that can provide quick foaming properties and foam stiffness when combined with a specific anionic surfactant at a specific mass ratio. I found out.

  That is, the present invention provides the component (a) composed of the compound represented by the formula (1), the compound represented by the formula (2) and / or the compound represented by the formula (3) (b) component. The surfactant composition is characterized in that the mass ratio [(a) / (b)] of the component (a) to the component (b) is 1/1 to 1/10.

（式（１）中、Ｒ^１ＣＯは炭素数８〜２２の脂肪族アシル基を示し、Ｒ^２は単結合、炭素数１〜４の直鎖または分岐鎖のアルキレン基を示し、Ｒ^３は炭素数１〜４の直鎖または分岐鎖のアルキレン基を示し、Ｍ^１はアルカリ金属原子、アルカノールアミンを示す。）

(In formula (1), R ¹ CO represents an aliphatic acyl group having 8 to 22 carbon atoms, R ² represents a single bond, a linear or branched alkylene group having 1 to 4 carbon atoms, and R ³ represents represents a linear or branched chain alkylene group having 1 to 4 carbon atoms, M ¹ is shown an alkali metal atom, an alkanolamine.)

（式（２）中、Ｒ^４ＣＯは炭素数８〜２２の脂肪族アシル基を示し、ｎ１は１または２の整数を示し、Ｍ^２はアルカリ金属原子、アルカノールアミンを示す。）

(In the formula (2), R ⁴ CO represents an aliphatic acyl group having 8 to 22 carbon atoms, n1 represents an integer of 1 or 2, and M ² represents an alkali metal atom or an alkanolamine.)

（式（３）中、Ｒ^５ＣＯは炭素数８〜２２の脂肪族アシル基を示し、ｎ２は１または２の整数を示し、Ｍ^３は水素原子、アルカリ金属原子、アルカノールアミンを示す。）

(In formula (3), R ⁵ CO represents an aliphatic acyl group having 8 to 22 carbon atoms, n 2 represents an integer of 1 or 2, and M ³ represents a hydrogen atom, an alkali metal atom, or an alkanolamine.)

  According to the surfactant composition of the present invention, for example, even when warm water of about 40 ° C. is used, quick foaming properties and firmness of the foam can be obtained when foaming, so that it is suitably used as a cleaning agent for the body and hair. be able to.

Embodiments of the present invention will be described below.
The surfactant composition of the present invention comprises a component (a) comprising a compound represented by formula (1), a compound represented by formula (2) and / or a compound represented by formula (3). (B) component. Hereinafter, each compound will be described.

[(A) component]
(A) A component consists of a compound represented by the said Formula (1).
R ¹ CO in the formula (1) represents an aliphatic acyl group having 8 to 22 carbon atoms. The aliphatic acyl group is an acyl group derived from a saturated fatty acid having 8 to 22 carbon atoms or an unsaturated fatty acid, or a mixed fatty acid containing one or more of these fatty acids. Examples include coconut oil fatty acid acyl group, palm kernel oil fatty acid acyl group, caproyl group, lauroyl group, myristoyl group, palmitoyl group, stearoyl group, oleoyl group and the like. Lauroyl group, myristoyl group, coconut oil fatty acid acyl group, and palm kernel oil fatty acid acyl group are preferable. Particularly preferred are a lauroyl group, a coconut oil fatty acid acyl group, and a palm kernel oil fatty acid acyl group.

R ² in the formula (1) represents a single bond or a linear or branched alkylene group having 1 to 4 carbon atoms. Examples of the alkylene group include a methylene group, an ethylene group, an n-propylene group, an isopropylene group, an n-butylene group, and an isobutylene group, and an ethylene group and a propylene group are preferable. That is, in the formula, examples of R ² OH include a monohydroxyethyl group, a monohydroxypropyl group, a monohydroxyisopropyl group, a monohydroxybutyl group, and a 2-hydroxybutyl group. A monohydroxyethyl group and a monohydroxypropyl group are preferred.

R ³ in the formula (1) represents a linear or branched alkylene group having 1 to 4 carbon atoms. Examples of R ³ include a methylene group, an ethylene group, an n-propylene group, an isopropylene group, an n-butylene group, and an isobutylene group, and an ethylene group and a propylene group are preferable. That is, examples of R ³ COOH in the formula include a monocarboxymethylene group, a monocarboxyethylene group, a monocarboxypropylene group, a monocarboxyisopropylene group, a monocarboxybutylene group, and a monocarboxyisobutylene group. A monocarboxyethylene group is preferred.

M ¹ in the formula (1) represents an alkali metal atom or an alkanolamine. Examples of the alkali metal atom include sodium and potassium. Examples of the alkanolamine include monoethanolamine, diethanolamine, triethanolamine and the like. Of these, sodium, potassium, and triethanolamine are preferable.
In the present invention, component (A) can be used by appropriately selecting one or more of the compounds encompassed by formula (1).

[Component (b)]
(B) A component consists of a compound represented by Formula (2) and / or a compound represented by Formula (3).
The compound represented by the above formula (2) is an N-methyl-N-acylamino acid type surfactant. R ⁴ CO in the formula (2) represents an aliphatic acyl group having 8 to 22 carbon atoms. The aliphatic acyl group is an acyl group derived from a saturated fatty acid having 8 to 22 carbon atoms or an unsaturated fatty acid, or a mixed fatty acid containing one or more of these fatty acids. Examples thereof include coconut oil fatty acid acyl group, palm kernel oil fatty acid acyl group, caproyl group, lauroyl group, myristoyl group, palmitoyl group, stearoyl group, oleoyl group, and behenyl group. Lauroyl group, myristoyl group, coconut oil fatty acid acyl group, and palm kernel oil fatty acid acyl group are preferable. Particularly preferred are a lauroyl group, a coconut oil fatty acid acyl group, and a palm kernel oil fatty acid acyl group.

Represents an integer of n1 is 1-2 in formula (2), X shows a carboxylate (-COOM ^2), or sulfonate _(-SO 3 ^{M 2).} M ² represents an alkali metal atom or alkanolamine. Examples of the alkali metal atom include sodium and potassium. Examples of the alkanolamine include monoethanolamine, diethanolamine, triethanolamine and the like. Of these, sodium, potassium, and triethanolamine are preferable.

  Specific examples of the N-methyl-N-acyl amino acid type surfactant represented by the formula (2) include, for example, lauroyl methyl taurine sodium, coconut oil fatty acid methyl taurine sodium, lauroyl sarcosine sodium, lauroyl sarcosine triethanolamine, Examples include coconut oil fatty acid sarcosine sodium, coconut oil fatty acid sarcosine triethanolamine, lauroylmethylalanine sodium, coconut oil fatty acid methylalanine sodium, lauroylmethylalanine triethanolamine, coconut oil fatty acid methylalanine triethanolamine, and the like.

The compound represented by the above formula (3) is an acyl dicarboxylic acid type surfactant. R ⁵ CO in the formula (3) represents an aliphatic acyl group having 8 to 22 carbon atoms. The aliphatic acyl group is an acyl group derived from a saturated fatty acid having 8 to 22 carbon atoms or an unsaturated fatty acid, or a mixed fatty acid containing one or more of these fatty acids. Examples thereof include coconut oil fatty acid acyl group, palm kernel oil fatty acid acyl group, caproyl group, lauroyl group, myristoyl group, palmitoyl group, stearoyl group, oleoyl group, and behenyl group. Lauroyl group, myristoyl group, coconut oil fatty acid acyl group, and palm kernel oil fatty acid acyl group are preferable. Particularly preferred are a lauroyl group, a coconut oil fatty acid acyl group, and a palm kernel oil fatty acid acyl group.

N2 in the formula (3) represents an integer of 1 to 2, ^{M 3} represents an alkali metal atom, an alkanolamine. Examples of the alkali metal atom include sodium and potassium. Examples of the alkanolamine include monoethanolamine, diethanolamine, triethanolamine and the like. Of these, sodium, potassium, and triethanolamine are preferable.

  Specific examples of the acyl dicarboxylic acid type surfactant represented by the formula (3) include sodium lauroyl glutamate, coconut oil fatty acid acyl glutamate triethanolamine, and sodium lauroyl aspartate.

  In the present invention, the component (b) can be appropriately selected from one or two or more selected from the group consisting of the compound represented by the above formula (2) and the compound represented by the formula (3). Moreover, 1 type, or 2 or more types can be suitably selected and used among the compounds included by Formula (2), and 1 type or 2 or more types can be selected and used suitably among the compounds included by Formula (3). be able to.

  In the surfactant composition of the present invention, the mass ratio of the component (a) to the component (b) [(a) / (b)] is 1/1 to 1/10, preferably 6/10 to 3 /. 20. If the mass ratio [(a) / (b)] is too large, the rapid foaming property and foam stiffness may not be sufficient. If the mass ratio [(a) / (b)] is too small, the foam stiffness may be insufficient. May not be enough. In addition, the surfactant composition of the present invention can be used by diluting with water if the mass ratio [(a) / (b)] is within the above range.

The use form of the surfactant composition of the present invention is not limited. For example, the surfactant composition can be used as a hair cleaning composition or a body cleaning composition, and the surfactant composition is blended in an amount of 10 to 40% by mass. A hair cleanser composition or body cleanser composition can be used.
Moreover, the surfactant composition of the present invention further contains various components generally used for hair and body cleaning agents, as long as necessary, within a range not impairing the effects of the present invention. Also good. The following can be illustrated as such a component.

  Anionic surfactants such as polyoxyethylene (3) sodium lauryl ether sulfate and fatty acid salts; amphoteric surfactants such as lauryl betaine, coconut oil fatty acid amidopropyl betaine, palm kernel oil fatty acid amidopropyl betaine, lauryl hydroxysulfobetaine ; Nonionic surfactants such as fatty acid alkanolamide type nonionic surfactant, amine oxide type nonionic surfactant, polyoxyethylene alkyl ether type nonionic surfactant; alkyltrimethylammonium chloride, dialkyl chloride Cationic surfactants such as dimethylammonium; pearlescent agents such as ethylene glycol distearate and triethylene glycol distearate; 1,3-butylene glycol, propylene glycol, dipropylene glycol Moisturizers such as sucrose, glycerin, diglycerin, isoprene glycol, protein hydrolyzate; oils such as squalane, jojoba oil, olive oil, castor oil, lanolin, lecithin; preservatives such as paraben; salicylic acid, isopropylmethylphenol, triclosan , Zinc pyrithione, piroctone olamine, etc .; pH adjusters such as citric acid and sodium citrate; sequestering agents such as edetate and hydroxyethanediphosphonic acid; antioxidants such as dibutylhydroxytoluene and tocopherol acetate Agents; extracts derived from animals and plants; pigments; fragrances and the like.

[Examples 1 to 9 and Comparative Examples 1 to 10]
Hereinafter, the present invention will be specifically described with reference to Examples and Comparative Examples.
The surfactant compositions obtained with the formulations shown in Table 4 and Table 5 were each prepared as a 10% by mass aqueous solution as a sample, evaluated as follows, and the results are summarized in Table 4 and Table 5. .
Table 1 shows each symbol of formula (1) in the compounds of (a) -1 to (a) -3, and Table 2 shows formula (2) in the compounds of (b) -1 to (b) -4. Table 3 represents each symbol of formula (3) in the compounds of (b) -5 to (b) -6.

(1) Quick foaming (foaming during cleaning)
Twenty men and women (24 to 47 years old) were panelists, and the speed of foaming when a sample of 5 mL was foamed by hand was evaluated. The total score of 20 people was determined by 2 points when feeling foaming was fast, 1 point when feeling foaming was slightly fast, and 0 point when feeling foaming was slow, and evaluated as follows.
○: Total score of 30 or more △: Total score of 20 or more and less than 30 ×: Total score of less than 20

(2) Stiffness of foam 100 g of a surfactant composition aqueous solution (1% by weight aqueous solution diluted with ion-exchanged water) at 40 ° C. is placed in a 1000 mL graduated cylinder so as not to foam. Next, the air stone part of the goldfish pump (Nichido Co., Ltd., Air Pump Non-Noise S200) is put into the aqueous solution and bubbled up to 1000 mL at a flow rate of 1000 mL / min. Put a float with a weight (5g) (fluorescent synthetic ball No. 15, weight 10g) in the foam and measure the time when the center line of the float passes from 1000mL to 500mL. The stiffness was evaluated.
◎: Passing time 15 seconds or more: Very strong foam ○: Passing time 10 seconds or more, less than 15 seconds: Strong foaminess △: Passing time 5 seconds or more, but less than 10 seconds: Foam stiffness is weak × : Passing time less than 5 seconds: No bubbles

  From the evaluation results of Examples 1 to 9 shown in Table 4, it can be seen that the surfactant composition of the present invention is excellent in quick-foaming property at the time of washing (in use) and the foam has stiffness.

On the other hand, as shown in Table 5, in Comparative Examples 1 to 10, sufficient performance was not obtained.
That is, since the comparative example 1 did not contain the component (a), the foam during use was not stiff.
In Comparative Example 2, since the component (b) was not contained, the quick-foaming property at the time of use was inferior and the foam was not stiff.
In Comparative Example 3, the mass ratio [(a) / (b)] exceeded the upper limit of the range specified in the present invention, so that the quick foaming property and the stiffness of the foam were slightly inferior to those of the Examples.
In Comparative Example 4, the mass ratio [(a) / (b)] was below the lower limit value of the range specified in the present invention.
In Comparative Examples 5 to 8, since the surfactant different from the component (a) was contained instead of the component (a), sufficient performance as in Examples of the present application was not obtained.
In Comparative Example 9, since the component that increases the stiffness of the foam listed in Patent Document 3 is contained, the stiffness of the foam is increased, but the rapid foaming property is inferior to that of the present example.
In Comparative Example 10, since the component that increases the stiffness of the foam described in Patent Document 2 is included, the stiffness of the foam increases, but the effect is not sufficient.

Claims (1)

A component (a) composed of a compound represented by the formula (1), and a component (b) composed of a compound represented by the formula (2) and / or a compound represented by the formula (3), The surfactant composition is characterized in that the mass ratio [(a) / (b)] of the component (a) to the component is 1/1 to 1/10.

(In formula (1), R ¹ CO represents an aliphatic acyl group having 8 to 22 carbon atoms, R ² represents a single bond, a linear or branched alkylene group having 1 to 4 carbon atoms, and R ³ represents represents a linear or branched chain alkylene group having 1 to 4 carbon atoms, M ¹ is shown an alkali metal atom, an alkanolamine.)

(In the formula (2), R ⁴ CO represents an aliphatic acyl group having 8 to 22 carbon atoms, n1 represents an integer of 1 or 2, and M ² represents an alkali metal atom or an alkanolamine.)

(In formula (3), R ⁵ CO represents an aliphatic acyl group having 8 to 22 carbon atoms, n 2 represents an integer of 1 or 2, and M ³ represents a hydrogen atom, an alkali metal atom, or an alkanolamine.)