JPS6086198A - Detergent composition - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cleaning composition that satisfies the essential requirements for a cleaning agent, such as foaming properties and cleaning properties, while successfully reducing irritation to branch offices. .

Conventionally, the surfactants used in shampoos, whether used by professionals such as hairdressers or general commercial products, are mainly alkyl sulfate ester salts, polyoxyethylene alkyl sulfate ester salts, and alkylminezene sulfonic acids. Salts, α-adrefin sulfonates, etc. have been widely used for over 10 years.

However, although shampoos containing these surfactants have excellent cleaning power, they are known to be highly irritating to hair salons, although the degree of For professionals who often come into contact with shampoo, it is said that the skin such as rough hands is 1+'?
It is easy to cause trouble.

Also, recently, young people who have a particularly developed sense of fashion wash their hair more often, but even the general public washes their hair less than 3 to 3 times.
The number of people washing their hair 4 times a week or every day has increased, and if they continue to wash their hair with shampoos containing irritating surfactants, the scalp will become rough, leading to dandruff and itching. There are other problems.

From these points, the current situation is that there is a strong demand for the use of shampoos with low skin irritation properties, not only for professional use but also for general commercial use.

The inventors of the present invention have conducted intensive research on the above points, and have found that surfactants and surfactant compositions with strong protein denaturing power can cause severe roughness of hands when used repeatedly. On the other hand, surfactants and shampoo compositions with low protein denaturing power can cause skin disorders such as rough hands even if used for a long period of time, and can also cause dandruff on the scalp.
It has been found that the occurrence of dandruff is significantly reduced.

That is, for various surfactants and mixed surfactant compositions, we measured the protein denaturation rate, tested rough hands using actual human hands, and determined the high IU of dandruff due to actual use (prolonged use). They discovered that surfactants and mixed surfactant compositions with a low protein denaturation rate tend to cause less rough hands and less sagging, leading to the completion of the invention of this cleaning composition. It is.

Finally, the present invention is based on the general formula (A) n, -o (0H2cHo)m -s as M ・
・-・"--(A) (in the formula, R is the average number of carbon atoms 7
to 21 alkyl or alkenyl groups, m represents an average number of added moles of 05 to 3, and M represents one or more of monoethanolamine, monoethanolamine, and triethanolamine, and an alkali metal. It is a mixture of one type or two or more types. ), an anionic surfactant represented by the general formula (B) 1(S (wherein R2 is an alkyl group or alkenyl group having an average of 7 to 19 carbon atoms, and R3 is a hydrogen atom or an average carbon number of 1 to 3) (lower alkyl group, R, R5 is a lower alkyl group having an average number of carbon atoms of 1 to 3, n is an integer of 1 to 4); (C) (CI(2C)I20)PH/R16-coN-(OH,,0H20)qH・・・
・(C).

(In the formula, R6 represents an alhyl group or alkenyl group having an average number of carbon atoms of 7 to 19, and P and q are numbers p'+q
is 5 to 5. ) to provide a cleaning composition containing an alkylolamide type nonionic surfactant represented by
) is 41 to 14, and (A) + (B
The weight ratio of ) and (C) is in the range of 10.1 to 11, and (A) + (B) + (c) is the ratio of 10 to 10 of the total.

Hereinafter, the configuration of the present invention will be explained in detail.

The anionic surfactant represented by the general formula (A) is
The average number of moles of polyoxyethylene added is selected within the range of 0.5 to 3, preferably 1 to 2.5. If the average number of added moles of polyethylene is less than 0.05, it has good properties in terms of foaming and creaminess of the foam, but it increases skin irritation, rough hands, etc., and has insufficient low-temperature stability, so it is not preferable. do not have. On the other hand, those having an average added mole number of polyoxyethylene exceeding 3 are not preferable because they are satisfactory in terms of skin irritation, rough hands, etc., but are insufficient in terms of lathering, foam creaminess, etc. The counter ion is a mixture of one or more of monoethanolamine, jetanolamine, and triethanolamine and one or more of alkali metals such as sodium, potassium, or lithium. Although the anionic surfactant represented by the general formula (A) has sufficient surfactant properties such as foaming properties and detergent properties, it has strong protein denaturing properties, and when used alone, it provides the desired low irritation cleaning property. agent is not available.

On the other hand, the alkylyl-amide betaine-type amphoteric tetrasurfactant represented by the general formula CB) has low protein denaturation ability and weak irritation, but is inferior in surfactant properties such as foaming and detergent properties. Therefore, when used alone, there is a drawback that a cleaning agent with satisfactory performance cannot be obtained.

The present inventors have discovered that when the anionic surfactant represented by the general formula (A) and the alkylylamide betaine type amphoteric surfactant represented by the general formula (B) are mixed at a certain ratio, each -H with higher viscosity than when used alone
, discovered that phenomena such as a decrease in the critical micelle temperature by 6 degrees occur,
It was assumed that a complex of an anionic surfactant and an amphoteric surfactant was formed, but in a mixture of this constant ratio, surfactant abilities such as foaming and detergent properties are not expressed by the general formula (A). At the same time, the protein denaturation performance is comparable to that of an alkylamide betaine type amphoteric surfactant represented by t' (Il) alone. It was discovered that there was a significant decrease in In other words, by mixing to form a complex, a synergistic effect was clearly exerted, and it was possible to successfully obtain a hypoallergenic surfactant composition with excellent surfactant ability and low protein denaturation ability. This is what I did. this(
The weight ratio of A):(B) is in the range of 4:mm to 14mm. If the balance of the system is disrupted by mixing at a mixing ratio outside this range or by adding a large amount of other anionic surfactants, the protein denaturation performance will not be sufficiently reduced and no results will be obtained.

In addition, the alkylolamide type nonionic surfactant represented by the general formula (C) used in the present invention has been traditionally used in anionic surfactant shampoos to have a foaming enhancement effect, a thickening effect, and a low l711X stability. However, in the present invention, this ((υ) is added to the mixture of (A) and (B) to a certain level. It has been found that the protein denaturation ability of the layer is reduced more by blending in the ratio of (A) + (B): (C), which is preferably 10:1 to 1.1 by weight. If there is too much (A) + (B) from this ratio, the effect of reducing protein denaturation ability of (C) will not be sufficiently exhibited, and if there is too much (C), the detergency as a shampoo, In addition, (A) + CB) 10 (C) is preferably a total of 10 interstices in order to form a liquid shampoo.

In the present invention, R8 in the anionic surfactant represented by general formula (A) is, for example, CIIH23-C
I2 R25-・C13R27-, CI4 R211-
・C16H33-・Cl8H3? Examples include alkyl groups such as -, mixed alkyl groups having 7 to 19 carbon atoms obtained from coconut oil fatty acids, and alkenyl groups such as CIH35-.

As R2 of the alkylylamide betaine type amphoteric surfactant represented by the general formula (B), for example, CyHi5%
CIIH23-1013H27s”*sHs+-1CI
TH36%CI? Alkyl groups such as H31S, mixed alkyl groups with 7 to 19 carbon atoms obtained from coconut oil, etc.
Or c,,Hl,-1CI? R33-・CI?
When an alkenyl group such as R29- is connected to R3 and -1aH, aH2c
Examples include alkyl groups such as H3.

As R6 of the alkylolamide type nonionic surfactant represented by the general formula (0), for example, 01lH23-
C13H27-1 product-→-015H3□-・Cl7H3
Mixed Al 4 having 7 to 9 carbon atoms obtained from alkyl groups such as 5- or coconut oil fatty acids, or 017H33-
Examples include alkenyl groups such as.

The cleaning composition of the present invention may optionally contain ingredients commonly added to cleaning agents, such as higher alcohols, lanolin derivatives, protein derivatives, oily ingredients such as fatty acid esters of polyethylene glycol, propylene glycol, glycerin, polyethylene glycol, etc. Humectant ingredients such as glycol, non-r-on surfactants such as polyoxyethylene alkyl ether and polyskin ethylene polyogine propylene block polymer, water-soluble polymer substances (anionic,
(including non-ionic and cationic ones), gold-14 ion sequestering agents, preservatives, bactericides, p■ adjusters, ultraviolet absorbers,
Antioxidants, dyes, fragrances, etc. can be included.

In particular, the polyoxyethylene polyoxybrobylene block polymer acts effectively as a viscosity modifier for the cleaning composition of the present invention. In particular, the weight ratio of the anionic surfactant represented by the general formula (A) to the alkylylamide betaine type amphoteric surfactant represented by the general formula IBI is 37.
to 7.3, and (A), (E) and the general formula (
When the total amount of the alkylolamide type nonionic surfactants represented by 0) is 15 to 50 parts by weight of the total, the polyoxyethylene polyoxypropylene block polymer is added to 01 to 10 parts by weight of the total. By blending, a cleaning composition with a desired viscosity can be obtained.

Next, the present invention will be explained in detail using examples.

The present invention is not limited thereby. Prior to the examples, the test methods and evaluation methods employed in each example will be explained.

Foaming Test Method A 1% sample concentration solution was prepared using 0aOO370ppm artificial hard water, and the amount of foaming was measured using a cylindrical cylinder equipped with a stirrer under conditions of a temperature side of °C.

○ Good foaming Foam volume 2.000 ml or more 2 △ Normal foaming Foam 1ik L500ml or more & less than 00〇×...Poor foaming Foam II R Less than 500ml Cleanability test method OaO/MgO-3/l, 5°DH in artificial hard water - A solution with a sample concentration of 1% was prepared and a cloth contaminated with artificial sebum was washed using wool surge.

? ! The sample was washed using a turbotometer (J-Tech 5K-3371) at 1'A degrees Celsius, and the cleaning efficiency was determined from the reflectance after washing I) 11.

o-Rs Ro゛Reflectance R8 of original cloth (wool serge), reflectance RW of contaminated cloth: Reflectance of contaminated cloth after washing ○・ Good cleaning performance Cleaning efficiency 80% or more △・ Normal cleaning performance Cleaning efficiency 60% Less than 80% x Poor cleaning efficiency Less than 60% Protein denaturation rate measurement method When a sample is added to an ovalbumin p117 slow-moving solution using aqueous high performance liquid chromatography, the sample concentration is 1%. The ovalbumin denaturation rate was set to 220 Om.
It was measured using the absorption peak of

o-Hs Denaturation rate (%) + -Z 100 O 220 nm absorption peak height of HO ovalbumin HG: 22 when the sample is added to the ovalbumin slow gun solution
0Om absorption peak height.

◎ Egg white alu-min denaturation rate less than 30%○ Ovalbumin denaturation rate,! 0% or more 2 Less than 60%△ Ovalbumin denaturation rate 60% or more - Less than 80% Ovalbumin denaturation rate 80% or more (blank below) Using the panel, hold either the left or right hand at a sample concentration of 5% and 1'flI.
Place one hand in an aqueous solution at 35°C and the other hand in water at the same temperature.
A 0-minute soaking operation was performed twice a day for 2 consecutive days, and the difference in rough skin between the left and right hands was visually determined.

◎ - Extremely weak hand roughness 0-1 out of 10 people Rough hands were observed on the sample side ○ - Hand roughness slightly weak 2 out of 10 people
~ 4 people Trial: Roughness was observed on the 1st side △: Slightly rough hands 5-7 out of 10 people Trial (Roughness was observed on the 1st side ×: Extremely strong roughness on the hands) Out of 10 people 8-1
0 people Trial 1: Dandruff generation amount measurement method where rough hands were observed on the 1st side On a panel that usually uses a commercially available shampoo made of lauryl ether lyrunate yarn (one that does not contain chemicals for dandruff itching), Using the sample, the subjects were asked to wash their hair five times using the same hair washing frequency and summer washing method as usual, and the amount of curling before and after using the sample was compared. After washing my hair with a commercially available shampoo, I added the dandruff from the third eye and the dandruff from the third pewter from the last day of 5 washes as a sample.

Dandruff is collected by suction from the head using a suction device with a P cloth.
In order to eliminate errors caused by other foreign substances, the nitrogen concentration was determined using the Kercoeur method, and this was multiplied by 625 to determine the average protein amount.
It was defined as the amount of dandruff (m9/head).

The number of panels was 3 for each sample, and the average values were compared.

◎... After using the sample, the amount of dandruff has decreased by 10% or more ○... After using the sample, the amount of dandruff has decreased by 10% or more
Less than △: The amount of dandruff after using the sample is 0
% or more but less than 10% Decreased ×...Dandruff melody increased after using the sample Examples 1 to 2 Shampoos having the composition shown in Table 1 were prepared, and their foaming properties, detergent properties, protein denaturation, We investigated the amount of dandruff caused by rough hands, usability (finger slippage), and low humidity stability.

(The following is a blank space) Examples 3 to 6 Shampoos having the composition shown in Table 2 were prepared, and their foaming properties, cleansing properties, denaturation of texture, roughness of hands, amount of J generation, and ease of use (finger smoothness) were evaluated. , the low humidity stability was investigated.

As is clear from the results in Tables 1 and 2, the cleaning composition of the present invention has foaming properties, detergency, protein denaturation rate, roughness on hands,
It showed excellent performance in all areas of dandruff generation.

(Margin below) Example 7 A shampoo consisting of the following formulation was prepared.

(Heavy M%) East polyoxyethylene (average 1.5) Lauryl sulfate 4 Triethanolamine 2 Alkyloylamide betaine type amphoteric surfactant 3 (Note 1) Lauric acid jetanolamide 2 Glycerin 2 Fragrance. 3 Pigment Trace amount of water Residual (hereinafter referred to as margin) Example 8 A shampoo consisting of the following formulation was prepared.

(% by weight) o- Polyoxyethylene (average zO) lauryl sulfate 41 15 triethanolamine 9 alkylylamide betaine type amphoteric surfactant 1z (
Note 1) Lauric acid jetanolamide 6 Coconut fatty acid monoethanolamide 2 Ethylene glycol fatty acid ester/l' Z51.3 butylene glycol 1 Polyoxyethylene yopolyoxyprovires yobro, Kuvorimer-3 Fragrance Trace color pigment Residual water (hereinafter referred to as blank space) Example 9 A shampoo having the following formulation was prepared.

(Weight%) East polyoxyethylene (average 15) lauryl sulfate +
8 Triethanolamine 7 Alkylamide betaine type amphoteric surfactant 10 (Note 1) Lauric acid jetanolamide 4 Polyethylene glycol 1 Pigment Weight composition. 3 Water Residual (hereinafter referred to as margin) Example 10 A shampoo having the following formulation was prepared.

(Weight %) o- Polyoxyethylene (average 10) Lauryl sulfate 4-7 (Heiji J4zo) rt Triethanolamine 6 Coconut fatty acid diethanolamide 5 Protein derivative 05 Preservative Small amount Color I Fragrance 025 Water Remaining Example 7 Example 1 About the shampoo obtained in ~10
As a result of performing the same performance evaluation test as in 6 to 6, the shampoo was excellent in all of the foaming properties, cleansing properties, protein denaturation rate, roughness on hands, and amount of dandruff.

Patent applicant Shiseido Co., Ltd. Procedural amendment (voluntary) 1. Indication of the case 1982 Patent Application No. 195697 2 Name of the invention Cleaning composition 3 Person making the amendment 4 Description subject to amendment 5 Contents of the amendment (1) Claims of the specification attached Correct as follows.

(2) Page 5, line 8 of the specification IC) IzCIIOJ should be corrected to ``C1l, Clll0j.''

(3) In the first line from the bottom of No. 6 of the specification, replace “Department” with “
%” first.

(4) Page 10 of the specification, line 4, ``Part'' is 1%.''
I will correct it.

(5) In the 8th line of page 12 of the specification, the word "part" is replaced with "%"
I will correct it.

(6) In the 10th line of page 12 of the specification, the word “part” should be replaced with “%”.
” and correct it.

(Attachment) 2. Claims (1) General formula (A) R1-0(Cl17CI110) m-303M −
-----(A) (wherein R1 represents an alkyl group or alkenyl group having an average number of carbon atoms of 7 to 21, m represents an average number of added moles of 0.5 to 3, M represents monoethanolamine, jetanol of amines and triethanolamines
1 type λ12 is an anionic surfactant represented by two or more types and one type of alkali metal (a mixture of 12 or more types) and the general formula (B) R (in the formula, R2 is an average number of carbon atoms of 7). R3 is a hydrogen atom or a lower alkyl group having an average of 1 to 3 carbon atoms, R4 and R5 are lower alkyl groups having an average of 1 to 3 carbon atoms, An alkyloylamide betaine type amphoteric surfactant represented by
-------(C) (wherein R6 represents an alkyl group or alkenyl group having an average number of carbon atoms of 7 to 19, p and q
is an integer and p+q is 1 to 5. ) A cleaning composition containing an alkylolamide type nonionic surfactant as an active ingredient.

(2) The weight ratio of the anionic surfactant represented by the general formula (A) and the alkylylamide betaine type amphoteric surfactant represented by the general formula (B) is in the range of 4=1 to 1:4, The weight ratio of (A)→-(B) and the alkylolamide type nonionic surfactant represented by the general formula (C) is in the range of 10:1 to 1:1, and (A)+(B)+
The cleaning composition according to claim 1, wherein (C) is 10 to 50% by weight of the total amount.

Claims (2)

[Claims] (1) General formula (A) RI-0(OI(200H)In-s 03M ・-・
--(A) (in the formula, R represents an alkyl group or alkenyl group having an average carbon number of 7 to 21, m represents an average number of added moles of 05 to 3, and M represents monoethanolamine, jetanolamine and It is a mixture of one or more triethanolamines and one or more alkali metals. 7 to 19 alkyl or alkenyl groups, with hydrogen atoms or an average number of carbon atoms of 1
to 3 lower alkyl groups, with the formula having an average number of carbon atoms of 1
3 to 3 lower alkyl groups, n is an integer and represents 1 to 4. ) and an alkylyl-midobetaine-type amphoteric surfactant represented by
9 represents an alkyl group or an alkenyl group; and q is an integer, and p+q is 1 to 5. ) A cleaning composition containing an alkylolamide type nonionic surfactant as an active ingredient. (2) An anionic surfactant represented by general formula (A) and an alkylylamide betaide represented by general formula (B). The weight tj and ratio of 4. Work or 1:
4, and the weight ratio of (A) + (B) and the alkylolamide type nonionic surfactant represented by the general formula (0) is in the range of 1O-1 to 1.1, and (A)
+ (E)