WO2004029190A1

WO2004029190A1 - Novel surfactant and use thereof

Info

Publication number: WO2004029190A1
Application number: PCT/JP2003/012111
Authority: WO
Inventors: Yoshinobu Saito; Satoshi Matsumoto; Daiji Nagahama; Takahiro Okuda; Tetsuo Nishina
Original assignee: P & Pf Co., Ltd.
Priority date: 2002-09-24
Filing date: 2003-09-22
Publication date: 2004-04-08
Also published as: JPWO2004029190A1

Abstract

A novel surfactant obtained by mixing a C8-24 fatty acid with an alkali salt of an amino acid; a detergent composition containing this surfactant as a detergent ingredient; and an emulsion composition containing this surfactant as an emulsifying ingredient. Preferably, the amino acid is an acidic or neutral α-amino acid, and the alkali is sodium, potassium, triethanolamine, or sodium N-methyltaurine. The C8-24 fatty acid preferably is a C12-18 fatty acid. Due to the use of the surfactant, a detergent composition satisfactory in lathering and lather quality and giving neither frictional feeling nor stiff feeling after use and an emulsion composition in a satisfactory emulsified state can be provided.

Description

Specification

Novel surfactant and its application

The present invention relates to a novel surfactant and its use, and more particularly to a detergent composition and an emulsifying composition using the novel surfactant.

Conventionally, in order to improve lathering and lather quality, a large amount of sardine has been used as a cleansing agent for face wash, body shampoo and shampoo. Among them, the most frequently used are alkali metal salts such as fatty acid natrium and forceum, but they are cheap and have good foaming and creamy creaminess. While it has advantages, it has a squeaky feeling when it is used as a shampoo, and it has a drawback such as having a feeling of tension after use when it is used as a cleanser. In order to solve such problems, JP-A-9-1257688 contains N-methyl thalic acid metal salt of fatty acid or N-methyl thalin organic alkyt salt as an essential component. Detergent compositions have been proposed.

However, in this detergent composition, there was a problem that a squeaky feeling and a firm feeling still remained after use.

The present invention is intended to solve the above-mentioned problems, and an object thereof is to provide a detergent composition which is good in both lathering and lather quality, and does not have a squeaky feeling or a feeling after use. . Disclosure of the invention

The present inventors have made intensive studies to above problems, specific base and C ₈ _ _{2 4} fatty acids (i.e., amino acids alkali) a novel surfactant which is obtained by mixing the as wash component The detergent composition used is foamy and foamy in good condition, and after use It was found that there was no feeling of squeaky feeling and that the emulsion state was good in the case of the emulsion composition using the surfactant as the persimmon component, and the present invention was completed.

That is, the present invention is a field surface active agent obtained by mixing an amino acid alkali c ₈ _ ₂₄ fatty acids.

As preferred embodiments of the amino acids, at least one selected from acidic amino acids and neutral amino acids is preferable, and at least one selected from α-amino acids is preferable. More preferably, it is at least one selected from glycine, trimethinoleglycine, haranine, serine, proline, hydroxyproline, glutamine, glutamic acid, asparagin, asparagine acid and glycylglycine, particularly preferably glycine, trimethyl It is at least one selected from glycine, glutamic acid and glycylglycine.

As a preferred embodiment of alfauli, at least one selected from natrium, oleum, triethanolamine and Ν-methyltaurine natrium is preferred.

C ₈ - As a preferred embodiment of the _{2 4} fatty acid, C m ₈ fatty acids are preferred, Lowry phosphate, myristic acid, palmitic acid, stearic acid, preferably at least 1 Tsugayori selected from isostearic acid and O maleic acid.

The present invention is also a cleaning agent comprising the above-mentioned surfactant 'I / bio-agent as a cleaning component, and the content of the above-mentioned surfactant is preferably 3 to 50% by weight. .

The present invention is a cream composition comprising the above surfactant as an emulsifying component, and the content of the surfactant is preferably 0.1 to 5% by weight. Brief description of the drawings

Fig. 1 is a graph showing the change in pH against the concentration for the surfactant (denoted as "glycine laurate Na") obtained by mixing lauric acid and glycine sodium and the sodium laurate. is there. BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, the present invention will be described in detail.

Surfactants of the present invention, which was neutralized by mixing the amino al force Li of the weakly basic weakly acidic c ₈ _ _{2 4} fatty acid, a constant what kind of salt formation is carried out but not either amino acid alkali salts of C ₈ _ _{2 4} fatty acid, i.e., C ₈ - _{2 4} and Anion-derived carboxyl groups in the fatty acid, and Oniu arm from amino groups in the amino acid Al force Li is associated It is also considered that they may form ion pairs.

In the present invention, a "C ₈ _ _{2 4} fatty acid", having a carbon number of 8 to 2 4, linear or branched岐鎖form a saturated or unsaturated fatty acids, the number of carbon atoms 1 2-1 8 Is preferred. Specific preferable examples of the "c ₈ _ _{2 4} fatty acid", lauric acid, myristic acid, palmitic acid, stearic acid, saturated fatty acids such as Isosutearin acid; coconut oil which is a mixture thereof; unsaturated fatty acids such as Orein acid Examples include fatty acids, palm kernel oil fatty acids, and tallow fatty acids.

In the present invention, in the “amino acid alkali”, the anion derived from the carboxyl group in the amino acid and the cation derived from Al tori form an ion pair.

In the present invention, “amino acid” in “amino acid alkali” includes not only monoamino acid, but also / 3_ amino acid, γ-amino acid, δ-amino acid, etc., and ァ -anolosyl substitution (preferably having 1 carbon atom) 4) Amino acids, and oligopeptides consisting of 2 to 5 of these amino acids are also included. Specifically, for example, glycine, sarcosine, trimethylglycine, allanin, beta-paranine, nocrine, leucine, isoleucine, serine, threonine, asparaginate, glutamate, asparaginine, asparagin, gnoletamine, cystine, cystine, methionine, phe Examples include niolealanine, progestin, hydroxyproline, glycil, ricin, glycil, ricinoleglycine, glycylproline and the like. In addition, any stereoisomer of an amino acid (for example, in the case of a single amino acid, d form, 1 form, 1 form d 1 form) is included in this "amino acid".

In the present invention, “amino acid” is preferably an acidic amino acid and a neutral amino acid. And alpha-amino acids are preferred. Preferred specific examples of the "amino acid" include glycine, trimethylglycine, allanin, serine, proline, hydroxyproline, glutamine, glutamic acid, asparagine, asparagine acid, glycyrrhizin, among which glycine, trimethinoleglycine Glutamic acid and daricylglycine are particularly preferred. These amino acids have particularly good foaming when the surfactant of the present invention is used as a washing component.

In the present invention, “alkali” in “amino acid alkali” includes alkali metals such as sodium, potassium and lithium; alkaline earth metals such as calcium and magnesium; ethanolamine (mono form, di form and tri form) And organic amines such as basic amino acids (lysine, arginine, histidine etc.), sodium メチル -methyl taurine, potassium メチ -methinoletaurine, sodium taurine, taurine kalium etc. Preferred specific examples of "alkali" include sodium, potassium, triethanolamine, and Ν-methyl thal nate sodium. When the amino acid is an amino acid having two carboxyl groups, such as glutamic acid aspartic acid, the alkali is 1.2 to 2 equivalents, particularly 1.5 to 2 equivalents, to these 2 equivalents. The alkali is preferably 1.2 to 2 moles, and more preferably 1.5 to 2 moles) with respect to 1 mole of these.

Preferred specific examples of the “amino acid alkali” in the present invention include glycine sodium, trimethinoleglycine sodium, allanine sodium, serine sodium, proline sodium, hydroxyprolin sodium, glutamine sodium, gnoretamine sodium ( Sodium: 1.2 to 2 equivalents), sodium paraparaginate, sodium asparaginate (1.2 to 2 equivalents of sodium), sodium glycylglycine, potassium glycine, glycine triethanolamine, glycine trisodium methanoretaurine, Guloretamine acid potassium (1.2 to 2 equivalents of potassium), glutamate triethanolamine (1.2 to 2 equivalents of triethanolamine), glutamate メチル -methyl taurine (Ν-methyl taurine nato) Um is 1.2 to 2 eq), glycylglycine potassium and the like, medium However, monosodium glutamate (1.2 to 2 equivalents of sodium), glutamate N-methinoletaurine sodium (1.2 to 2 equivalents of N-methyltaurine sodium), sodium daricin, sodium trimethyldalysin Dali silk, ricinna small rhium is particularly preferred.

C ₈ - amount of ₂₄ amino acid alkali for fatty acids, C ₈ -. With respect to ₂₄ fatty acids 1 eq, 1.0 to 1 6 equivalents, particularly preferably 1.0 to 1 4 eq..

Preferred specific examples of the surfactant of the present invention obtained by mixing C ₈ _ ₂₄ fatty acid and amino acid are as described above for the preferred specific examples of the above-mentioned "C ₈ ₂₄ fatty acid". And the like, and various combinations and mixtures of the preferred specific examples of amino acid

Obtained by mixing lauric acid and sodium glutamate (1.2 to 2 equivalents of sodium);

Obtained by mixing lauric acid and glutamic acid N-methylturin sodium (1.2 to 2 equivalents of N-methyltaurine sodium);

Obtained by mixing lauric acid and sodium glycine;

Particularly preferred is one obtained by mixing lauric acid and trimethylglycine sodium; and one obtained by mixing lauric acid and sodium glycylglycine.

Surfactants of the present invention, by the addition with stirring grounds amino alkaline aqueous solution C ₈ _ ₂₄ fatty acids, or, C ₈ to amino acid alkali aqueous solution - by ₂₄ fatty acids are added with stirring, to prepare Can. The surfactant '1 to bioagent of the present invention thus prepared can be used as an aqueous solution, for example, as a washing component or an emulsifying component.

In the above preparation, it is better to use a slightly excess of amino acid over theoretical amount, because the c ₈ ₂₄ fatty acid is a weak acid and the amino acid alkali is a weak base for neutralization. The amount used varies depending on the type of fatty acid and alkali used as amino acid, but it is preferably in the range of 1. 0 to 1. 6 moles, in particular 1. 0 to 1: 1. per mole of C ₈ ₂₄ fatty acid. It is preferably 4 moles. When the amount of the amino acid alkali used is too large, the pH of the prepared surfactant becomes too high, which may result in poor foaming when used as a washing component, which is not preferable. In addition, as for the temperature at the time of said preparation, 50 to 80 degreeC is suitable.

The surfactant of the present invention thus prepared has a pH of 7.5 to 1: L1, preferably 7.5 to 9.5, and good lathering.

The detergent composition of the present invention, as the cleaning component, C ₈ _ _{2 4} fatty acid and amino acid Al force Li and mixed to the surfactant obtained (preferably an aqueous solution) is one comprising a. Here, these surfactants may be contained alone or in combination of two or more.

In the present invention, the content thereof is preferably 3 to 50% by weight in the composition, though it varies depending on the type of the above-mentioned surfactant. If the content is less than 3% by weight, foaming will be poor, and if it exceeds 50% by weight, the solubility will be poor, which is not preferable. The above content varies depending on the form of the detergent composition, for example, 3 to 40% by weight in liquid form, and 10 to 50% by weight in solid form. Ma ,. The detergent composition of the present invention may contain, in addition to the above-described surfactant which is an essential component, if necessary, an additive that is usually blended in the detergent composition. For example, an anionic surfactant such as fatty acid salt (stone), N-long chain acid amino acid salt, alkyl sulfate ester salt, polyoxyethylene alkyl alkyl ester sulfate, hydroxyalkyl ether carboxylate, etc .; idazoline based amphoteric interface Surfactants, amphoteric surfactants such as betaine amphoteric surfactants; nonionic surfactants such as polyoxyethylene alkyl ethers, polyoxyethylene fatty acid esters, sucrose fatty acid esters, alkyl dalcosides, maltitol hydroxy aliphatic ethers, etc .; Cationic surfactants such as trimethylalkyl ammonium compounds; glycerin, diglycerin, 1,3-butylene glycolonole, propylene glycolonole, dipropylene glycolonole, polyethylene glycol, sucrose, sorbit, hyaluro Moisturizing agents such as sodium; chelating agents such as Edeto salt; assembly, Shakuyaku, Irisu, horsetail, § b Plant extracts such as miso honey, eucalyptus oil, dipotassium glycyrrhizinate; drugs such as tranexamic acid, arbutin; perfumes; dyes; preservatives etc. The detergent composition of the present invention, which contains the above-mentioned surfactant as a cleansing component, has, for example, no squeaky feeling when used as a shampoo and, when used as a cleanser, it also has a firm feeling after use. There is no such thing. As compared to metal salts such as sodium of conventional fatty acids, they have better bubbling and foam quality. The detergent composition of the present invention can be used in any form known in the prior art such as solid, liquid, cream, foam, powder and the like, and shampoos and body shampoos; face wash; kitchen detergents It is applicable to any conventionally known use such as a laundry detergent.

The detergent composition of the present invention can be prepared by a conventionally known method. For example, in order to produce the detergent composition of the present invention in the form of a liquid detergent, a conventional production method is adopted. That is, mixed with a previously C ₈ _ _{2 4} fatty and amino acids the surfactant with an alkali aqueous solution obtained by mixing the other ingredients and water, such as alcohol solvent, heating at 5 0~ 7 0 ° C approximately By dissolving, a liquid detergent can be obtained. Incidentally, during this manufacturing process, C ₈ - _{2 4} by mixing the fatty acid and an amino acid alkali aqueous solution may be prepared the surfactant.

Moreover, in order to produce the detergent composition of the present invention in the form of a solid detergent, a conventional production method is adopted. That is, mixed with the surfactant was formed by mixing pre-C ₈ _ _{2 4} fatty acid and an amino acid alkali aqueous solution, other components with 6 0~ 8 0 ° C approximately, stone鹼by conventional framed Method A solid detergent can be obtained by obtaining a glue and using it to carry out a usual forming step, a ripening step (if necessary) and a shaping step. Contact name during the process of obtaining the stone鹼膠, by mixing the c ₈ one _{2 4} fatty acid and an amino acid alkali aqueous solution, yo les be prepared the surfactant.

Emulsion composition of the present invention, as emulsifying component, C ₈ - _{2 4} The surfactant frame properly obtained by mixing fatty acid and an amino acid alkali is of even comprising a) an aqueous solution. Here, this surfactant may be used alone or in combination of two or more. It may be

In the present invention, the content thereof is preferably 0.1 to 5% by weight in the composition, although the content varies depending on the type of the above-mentioned surfactant. If the content is too high or too low, the composition may have insufficient milkiness, which is not preferable.

The emulsion composition of the present invention comprises the above surfactant, which is an essential component, and an oil component (a liquid oil, a solid oil, a wax, a hydrocarbon oil, a higher fatty acid, a higher alcohol, a synthetic alcohol) which is usually mixed with the emulsion composition. Surfactants (anion surfactant, amphoteric surfactant, nonionic surfactant (lipophilic, etc.) which are usually added to the emulsion composition, if necessary, in addition to ester oil, silicone oil etc.) and water. Hydrophilicity), cationic surfactant) and additives may be included. Additives include moisturizers, powder components, water-soluble polymers, thickeners, UV absorbers, sequestering agents, lower alcohols, polyhydric alcohols, sugars (monosaccharides, oligos, etc., polysaccharides), amino acids, Organoamines, pH adjusters, antioxidants, antioxidants, preservatives, anti-inflammatory agents, anti-inflammatory agents, skin-whitening agents, various extracts, activators, blood circulation promoters, antiseborrhoeic agents, anti-inflammatory agents and the like.

The emulsified composition of the present invention, which contains the above surfactant as an emulsifying component, has a good emulsifying state.

The emulsion composition of the present invention can be used in any of the conventionally known forms such as creamy, liquid, and gel-like, and also, for example, cosmetic (cream, milky lotion, cosmetic liquid), for medicine, It can be applied to any conventionally known use such as quasi-drugs and food. The emulsion composition of the present invention can be prepared by a conventionally known method. For example, in order to produce the emulsion composition of the present invention in the form of a cream, conventional production methods are adopted. That is, mixed with preheated C ₈ _ _{2 4} fatty acid and an amino acid alkali aqueous solution and the surfactant was formed by mixing an oily component, an aqueous component and other additives at 5 0 to 7 0 ° C approximately Tartiform emulsified yarn or composition can be obtained by adding milk (using a homomixer etc.). The surfactant may be prepared by mixing a C ₈ 24 fatty acid and an aqueous solution of amino acid in this production process.

The surfactant of the present invention is not limited to the detergents and the emulsifiers, and may be used in conventional surfactants. For example, scouring agents, foaming agents, antifoaming agents, demulsifiers, dispersing agents, penetrants, wetting agents, solubilizers, effervescent agents, lathering agents, smoothing agents, anti-slip agents, softeners, It can also be expected to be used as dye fixing agent, leveling agent, relaxation agent, discharging agent, waterproofing agent, flameproofing agent, antistatic agent, flotation agent, mildewproofing agent, corrosion inhibitor, bactericidal agent, etc. Example

Hereinafter, the present invention will be described in more detail by way of examples, but the present invention is not limited to these examples.

Preparation of aqueous solution of pamino acid aqueous solution

By using predetermined amounts of amino acid, aqueous Al-water solution and ion-exchanged water as shown in Tables 1 to 3, amino acids are added to ion-exchanged water, and an aqueous alkaline solution is added at 70 ° C. with stirring. , Sample :! An aqueous solution of ~ 17 amino acids was prepared.

table 1

TEA: Triethanolamine

l- ¹

o NMT-Na: N-methynoletarin sodium

Table 2 Al-water solution Ion amino acid Alkaline aqueous solution Gluoletamic acid NaOH NMT-Na exchanged water (50%) (55%)

Sample 5 gnoretamic acid Na (20%) 16.96α 11.06g 71.98g

(Na: 1.2 eq)

Sample 6 gnoretamic acid a (20%) 15.76 g 15.42 g 68.82 g

(Na: 1.8 eq)

Sample 7 Glutamic acid NMT-Na (20%) 7.57 g 68.75 g

(NMT-Na: 1.5 eq)

Sample 8 Glutamic acid 丽 T-Na (30%) 9.4g 39.23g 51.37g

(NMT-Na: 2. Oeq)

NMT-Na: N-methyl turin sodium

M C

0 0

Table 3 Aqueous solution of aqueous solution ion amino acid aqueous solution of aqueous solution amino acid NaOH

Replacement water (50%)

Sample 9 Aranin Na (20) Alanine 16. 04g 69.56g Test family 10 Serine Na (20%) Serine 16. 54g 12.59g 70.87g Sample 11 Proline Na (20%) Proline 16. 79g 11.67g 71.54g Droxyproline Na (20%) Hydroxyproline 17. 13 g 10.45 g 72.42 g sample 13 asparagin Na (20) asparagine 17. 15 g 10.38 g 72.47 g sample 14 gnoletamine Na (20%) gnoletamine 17. 4 g 9.46 g 73.14 gt

Sample 15 asparaginate Na (20%) asparaginic acid 16 22 g 13.75 g 70.03 g

(Na: 1.4 eq)

Sample 16 Glycinoledalysin K (20) Glycylglycine 15 43g 7.67g 76.9g Sample 17 Trimethylglycine Na (20%) Trimethinoleglycine 16 72g 11.42g 71.86g

x> <

O · Examples 1 to 7

Using predetermined amounts of lauric acid, aqueous amino acid aqueous solution and ion-exchanged water shown in Table 4, add lauric acid to ion-exchanged water, and stir at 60 ° C under an aqueous solution of amino acid alkali Were added to prepare surfactants of Examples 1 to 17 (described as 30% aqueous solutions in Table 4 and Table 5 as “lauric acid-amino acid”).

Table 4 Surfactant (30% aqueous solution)

Amino acid alkaline ion (lauric acid and monoamino acid alkali) lauric acid

Aqueous solution exchange water (Amino acid alkali: 1.0 equivalent)

Example 1 Lauric acid-glycine Na 22. 29 g ^ Charge 1 38. 53 g 39. 18 g Example 2 Lauric acid-glycine K 21. 38 g Sample 2 43. 09 g 35. 53 g Example 3 Lauric acid-glycine TEA 16. 69 g ^: Food 3 66. 57 g 16. 74 g Example 4 Lauric acid-gudisine NMT-Na 16. 29 g Sample 4 68. 53 g 15. 18 g Example 5 Lauric acid gonorethamic acid a 18. 54 g sample 5 57. 29 g 24. 17 g Example 6 Lauric acid mono-hydroxylated sodium Na 18. 02 g Squid et al. 59. 9 g 22. 08 g Example 7 Lauric acid-glutamic acid NMT-Na 12. 58 g Sample 7 87. ig 0.32 g Example 8 Lauric acid Glutamic acid NMT-Na 11.3 g Sample 8 62. 57 g 26. 2 g Example 9 Lalanic acid Na 2 1 5 g Sample 9 42. 52 g 35. 98 g Example 10 Lauric acid-serine Na 20. 65 g Sample 10 46 74 g 32 61 g Example 11 Lauric Acid-Proline Na 20. 16 g Sample 11 49 21 g 30. 63 g Example 12 Lauric Acid Hydroxyproline Na 19. 41 g Sample 12 52. 93 g 2 7. 66 g Example 13 Lauric acid-aspalagin Na 19. 37 g Sample 13 53. 15 g 27. 48 g Example 14 Lauric acid gonorethamine Na 18. 72 g Sample 14 56 38 g 24. 9 g Example 15 Lauric acid-aspalformic acid Na 18. 99 g sample 15 55. 07 g 25. 94 g Example 16 Lauric acid-glycylglycine K 18. 99 g sample 16 55 07 g 25. 94 g Example 17 lauric acid-trimethylglycine Na 17. 64 g sample 17 61 8 g 20 · 56g

TEA: Triethanolamine

NMT-Na: N-methy ^ ^ taurine sodium

The surfactants prepared in Examples 1 to 7 were evaluated for foaming, usability (freshness and moist feeling) and stability. As surfactants of Comparative Examples 1 to 3, lauric acid N-methyl taurine sodium salt (30% aqueous solution), lauric acid sodium salt (30% aqueous solution) and lauric acid triethanolamine salt (3 The same evaluation was made for 0% ZR solution). The results are shown in Table 5.

Table 5

TEA: To Rietano Noleamine

NMT-Na: N methyl taurine sodium

Evaluation method>

1. Foaming

A 1% aqueous solution of the sample was prepared with artificial hard water of 70 ppm carbon calcium, and this was stirred at 40 ° C. by a mixer with a predetermined rotation number for a fixed time, and the amount of generated bubbles was measured. Foaming was judged according to the following criteria from the measured amount of foam.

:: 2200 ml or more

○: 2000 ml or more and less than 2200 ml

:: 1 to 800 m l and less than 2000 m l

X: less than 1 800 m 1.

2. Usability (Sense and moist feeling)

A female paneler (20 to 30 years old) picks up a sample in the normal face washing mode by 20 people, foams it to wash the face, and after washing the face according to the following criteria, after 5 minutes and 1 I judged the feeling of tension two hours later.

Sense of taste

:: When the feeling is extremely high

○: When a refreshing feeling is obtained

:: When the feeling is normal

X: When there is a sticky feeling

Feeling moist

:: When the feeling of moisture is extremely high

'O: When moist feeling was obtained

:: When moist feeling is normal

X: When I have a feeling of tightness.

3. Stability

Each sample has 3-7. It was stored in C for 4 weeks. For each sample after storage, a sample stored at 15 ° C. for 4 weeks was used as a standard, and the stability was judged based on the following criteria based on the degree of discoloration by five expert panelists. :: There is no change compared to the standard product

○: A slight difference is observed compared to the standard product (no problem)

:: Difference is recognized compared with the standard product (there is a problem)

X: Remarkable difference is recognized compared with the standard product (ρ. There is a title).

From Table 5, it is found that all the surfactants of Examples 1 to 16 have a good lathering property, and after use they can feel refreshing and even after 12 hours they can obtain a firm feeling. The Furthermore, the stability was also good.

On the other hand, in all of the surfactants of Comparative Examples 1 to 3, the foaming was slightly inferior, and at 12 hours after use, there was a feeling of pinching. The surfactant of Comparative Example 3 was also inferior in stability.

Example 1 8

A surfactant obtained by mixing lauric acid and glycine sodium (hereinafter referred to as "glycine Na a on lauric acid: glycine Na: 1.4 equivalents), sodium laurate (hereinafter referred to as" lauric acid The following evaluations were made on the notation N a "and N a: 1.0 equivalent).

1. Change of pH against concentration

For each sample, first, an aqueous solution of 20 O mmo 1 ZL was prepared, and then an aqueous solution was prepared by diluting this to each concentration of Table 6. The pH values of these aqueous solutions were each measured at 40 ° C. using a LAB p H meter M-12 (manufactured by Horiba, Ltd.). The results are shown in Table 6 and Figure 1.

Table 6

Concentration: unit mmo 1 L From Table 6 and Fig. 1, little change in pH is observed after dilution with glycine monosodium laurate, and it is almost constant at around 9.3-4. there were. On the other hand, sodium laurate was a constant value near pH 9.1 at high concentration, but changed to pH 7 as it was diluted. Thus, it can be seen that in low concentration aqueous solutions, the pH of both is clearly different. The reason for this is not clear, but lauric acid-glycine Na is an ion pair formed by the association of an anion derived from a carboxyl group in lauric acid and an amino acid derived from an amino group in glycine Na. Since the following equilibrium is established in the aqueous solution, it seems that there is almost no change in pH even after dilution.

RCOO "H ₃ N ⁺ CH ₂ COO 'Na ⁺ + H ₂ O

,-RCOOH + OH "+ H ₃ N ⁺ CH ₂ COO-Na + 2. Surface tension and cm c (critical micelle concentration)

Lauric acid-monoglycine Na aqueous solution for aqueous solution of lauric acid Na aqueous solution, surface tension and cm according to the Wilhelmy method using a _3- chamber type 1 surface tension gauge (manufactured by Shimadzu Corp.) at 40 c was calculated. The results are shown in Table 7. -

Table 7

As apparent from Table 7, it can be seen that the surface tension and cmc are distinctly different between monoglycine laurate Na and lauric acid Na.

Examples of formulations using the surfactant of the present invention are shown below, but the surfactant obtained by mixing fatty acid and amino acid is described as "fatty acid-amino acid". .

Example 1 9 (Preparation of Shampoo)-Laurylamino S Betaate succinate (30% solution) 0

Sodium lauryl sulfate (3 0% solution) 0

Lauric acid diethanolamine 5

Ethylene glycol fatty acid ester 5 Propylene dariconore 3

Fedetoate 0.

Lauric acid-glycine sodium (30% solution) 1 5

Purified water _ remaining

Total 1 0 0

• The above ingredients were uniformly dissolved at 70 ° C and cooled to 35 ° C with stirring to obtain a shampoo. This shampoo was less irritating to the hair and scalp, had a good lather, and was clean after washing.

Example 2 0 (Preparation of body shampoo). Potassium laurate (30% solution) 15

Coconut oil fatty acid amide propyl betaine (30% liquid) 15

Lauric acid-glycine strength (30% solution) 15

Lauric acid-hydroxyproline sodium (30% solution) 5

1, 3—Butylene Glyconole 10

Fedetoate 0

Lauric acid diethanolamine 3

Glycerin 5 Total 100

The above components were uniformly dissolved at 75 ° C. and cooled to 35 ° C. with stirring to obtain a body shampoo. This body shampoo had a good lather, was clean after washing, and was very moist.

Example 21 (Preparation of liquid face wash) Lauryl imidazolinum betaine (30% solution) 10

Lauric acid-proline sodium (30% solution) 3

Myristic acid sodium salt (30% solution) 15

Ethylene darylol fatty acid ester 2

Propylene Daricono 10

Fedetate '0. 1 Fragrance 0. 3 Purified water _ 1 Remainder

100 total

The above components were uniformly dissolved at 70 ° C. and cooled to 35 ° C. with stirring to obtain a liquid face wash. This liquid cleanser was lathering well and was cleansed. Harmful example 22 (Preparation of opaque solid stone test for face wash) Lauric acid 4

Myristic acid 7

Palmitic acid 3

Stearic acid 4

Isostearic acid 2

Sorbit liquid (7 0%) 5

Glycerin 5

Diglycerin 5

Fedetoate 0

Darsin 6

Caustic soda (40%) 8

Ion exchange water 4

Five

Coconut oil fatty acid Imidazolium betain 4

Fragrance Aloe extract solution 0.1 Ion-exchanged water

Total 1 0 0

Lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, sorbit solution, glycerin, diglycerin and edetate salt 75 After dissolving in C, a solution in which glycine, caustic soda and ion-exchanged water were uniformly dissolved was added to this to neutralize. After that, purified sugar, coconut oil fatty acid imidazolinium betaine, flavor, color, aloe extract and the remaining ion-exchanged water were added and dissolved to obtain a salt solution. The stalagmite solution was poured into a predetermined frame, solidified, and cut to obtain an opaque solid stalagmite. This opaque solid stone foams well, and after washing it is not washed I was going to take a bath again. There was no skin irritation.

Example 2 3 (Preparation of transparent solid stone weir for face wash) Lauric acid 4

Myristic acid 7

Palmitic acid 2

Stearic acid 5

Isostearic acid 2

Sorbit liquid (7 0%) 5

Glycerin 1 4

9 5% alcohol 8

Edeto acid salt 0 1 Guloretamic acid 1 2 5 caustic soda (98%) 1.7 caustic force (8 5. 5%) 7. 8 ion exchange water 15

Ten

N-Chassi oil fatty acid Asyl methyl taurine sodium 5

Dipotassium glycyrrhizinate 0.50 Ion exchange water balance

Total 1 0 0

Lauric acid, myristic acid, palmitic acid, stearic acid, isostearic acid, sorbit solution, glycerin, 95% alcohol and edetate · 75 After dissolving in C, a solution in which glutamic acid, caustic soda, potassium hydroxide and ion-exchanged water were uniformly dissolved was added to this to neutralize it. Thereafter, to this were added purified sugar, N-cobalt fatty acid fatty acid methyl methyl naphthalene, glycyrrhizic acid dicalum and the remaining ion-exchanged water, and the mixture was dissolved to obtain a sarcophagus solution. Put this solution in a specified frame The mixture was poured, solidified, cut, and aged to obtain a transparent solid stalagmite. This transparent solid stalagmite was well-foamed, and after washing, it was clean and moist. There was no skin irritation.

Example 2 4 (Preparation of a creamy face wash) Glycerin 1 8

Sorbit liquid (7 0%) 7

Polyethylene glycol Nore 1 5 0 0 9

Lauric acid 10

Myristic acid 4

Stearic acid 8

Glycylglycine sodium 1 2 6 Ion-exchanged water 1 2 6 Monoglyceride stearate 3

Isostearic acid monoglyceride 2

N-coconut oil fatty acid asyldaricin potassium 3

Polyethylene powder 3

Force Millet Extract 0,

Herea / lelonate 0. 1 perfume flavor 0.5 ion exchange water

Total 1 0 0

After dissolving glycerin, sorbit solution, polyethylene glycol 150, lauric acid, myristic acid and stearic acid at 75 ° C, add a solution in which potassium glycyrrhizin potassium and ion-exchanged water are uniformly dissolved in advance. I've added up. This is followed by monodearceride stearate, monoglyceride isostearate, potassium N-cocoyl fatty acid asylglycine, polyethylene powder, honeydew extract, Sodium hyaluronate sodium, perfume and remaining ion-exchanged water were added and dissolved to obtain a stone solution. The sarcophagus solution was cooled to 40 ° C. with stirring to obtain a creamy washing powder. This thalmic cleansing agent had a good bubbling, and after washing, it was fine after washing. There was no skin irritation.

Example 2 5 (Preparation of foamy face wash) Glycerin 5

Dipropylene Darikonole 1 0

1, 3-butylene gluconore 3

Lauric acid 2 glutamate monosodium 3

Caustic soda (40%) 8 ion-exchanged water 5

Lauryl amino acetic acid betaine (30% solution) 3.5 Fedetoate 0.2. Euric oil 0.50 Ion exchange water balance remainder

Total 1 0 0

After dissolving glycerin, dipropylene glycol, 1,3-butyleneglycolol, lauric acid and myristic acid at 75 ° C, monosodium glutamate, caustic soda and ion exchange water were uniformly dissolved in advance. The solution was added and neutralized. After that, laurylaminoacetic acid betaine, pedeto acid, eucalyptus oil and the remaining ion-exchanged water were added and dissolved to obtain a stone solution. The sarcophagus solution was cooled to 40 ° C. with stirring to obtain a liquid cleanser, which was filled in a predetermined pump former container. This foamy facial wash was well-foamed, and after washing, it was washed and raised after washing, and it was used as a pickle again. There was no skin irritation. Example 26 (Preparation of Beauty Cream) Vaseline 1.5 Seta nol.

1, 3—Butylene Glyconole 5

Hardened oil 3

1

Stearic acid 1.5 self-emulsifying glycerin monostearate 2

Polyoxyethylene glyceryl monostearate 0.5 Gnuretamic acid 0.50 59 Sodium hydroxide (98%) 0 32 Dipotassium glycyrrhizinate 0 2 Acetic acid d l i tocoffeol 0

Pure duck extract 0 2 Paraxoxybenzoic acid ester 0 2 Canopoxy vinylole polymer 0.3 0.3 Canzo flavonoid 0.1. 1 Purified water-79. 49

100 total

The carboxyvinyl polymer was dispersed in a portion of the purified water, and 1, 3- pentylene glycol was added and heated to 70 ° C. To this, an aqueous solution of stearic acid-glutamic acid sodium which was previously prepared from stearic acid, glutamic acid, sodium hydroxide and purified water was added and mixed. Then, this was mixed beforehand with vaseline, cetano-no-le, hydrogenated oil, squaran, self-modified glycerin monostearate, polyoxychelene monostearate glycerine and para-hydroxybenzoic acid ester and dissolved at 70 ° C. Add the emulsion particles to 1 to 5 μm using a homomixer. Milked for 10 minutes until it became. Furthermore, dipotassium glycyrrhizinate, acetic acid d 1-tocopherol, uggon extract and cansola flavonoid were added and mixed, and the mixture was cooled to 25 ° C. using a heat exchanger to obtain a beauty cream. This beauty cream was filled in a predetermined resin container. As apparent from the above description, C ₈ _ _{2 4} fatty and specific base (i.e., Amino acid alkali) novel surfactants of the present invention obtained by mixing a detergent composition used as a cleaning component The product is good in both foamability and foam quality, and does not have a squeaky feeling after use, and it can be seen that the emulsion state is good in the emulsion composition used as the emulsion component. Industrial applicability

The surfactants according to the invention, in particular, shampoos, body shampoos,? It is very useful as a washing component of a washing composition such as a pre-pigment, and also as an emulsifying component of an emulsion composition such as a cosmetic cream, emulsion, or cosmetic liquid. Priority is claimed on Japanese Patent Application No. 2002-2006, filed on Sep. 24, 2012, in Japan, as described in the application. The contents shall be included in the present specification.

Claims

The scope of the claims

1. Surfactant obtained by mixing c ₈ ₂₄ fatty acid and amino acid.

2. The surfactant according to claim 1, wherein the amino acid is at least one selected from an acidic amino acid and a neutral amino acid.

3. The surfactant according to claim 1, wherein the amino acid is at least one selected from one amino acid.

4. The method according to claim, wherein the amino acid is at least one selected from glycine, trimethylglycine, haranine, serine, proline, hydroxyproline, g ^ -tamine, gneuretamic acid, asparagine, asparagine acid and daricyl dalysin. The surfactant according to claim 1.

5. The surfactant according to claim 1, wherein the amino acid is at least one selected from glycine, trimethyldalysine, glutamic acid and glycylglycine.

6. The surfactant according to claim 1, which is at least one selected from alkaline power S, sodium, potassium, triethanolamine and N-methyltaurine sodium.

7. C ₈ - ₂₄ fatty acids C ₁₂ - ₁₈ fatty acid, claims surface active agent of claim 1 wherein

8. C ₈ - ₂₄ fatty acids, lauric acid, Mi Risuchin acid, palmitic acid, stearyl The surfactant according to claim 1, which is at least one selected from acid, isostearic acid and oleic acid.

9. A cleaning agent composition comprising the surfactant according to any one of claims 1 to 8 as a cleaning component.

10. The cleaning composition according to claim 9, wherein the content of the surfactant is 3 to 50% by weight.

11. An emulsion composition comprising the surfactant according to any one of claims 1 to 8 as an emulsion component.

The emulsion composition according to claim 11, wherein the content of the surfactant is 0.1 to 5% by weight.