JPH02123195A - Detergent composition - Google Patents

Abstract

PURPOSE:To provide a detergent composition containing an alkyl glycoside, an amide-type surfactant and a polyalkylene oxide adduct of a polyhydric alcohol, giving remarkably suppressed irritation and damage to the skin and hair and having excellent frothability and detergency. CONSTITUTION:The objective composition contains (A) an alkylene glycoside, (B) an amide-type surfactant of formula I-III [R1, R3 and R5 are 7-19C alkyl or alkenyl; R2 is -(CH2CH2O)mH (m is 5-20); R4 and R6 are -CH2COOM or -CH2 CH2COOM (M is H, alkali metal, etc.); R7 is H, -CH2COOM, etc.] and (C) a polyalkylene oxide adduct of a polyhydric alcohol having an average molecular weight of 300-4,000 (provided that ethylene glycol is added with propylene oxide). The weight ratio of B/A is 1/(300-2) and that of C/A is 1/(300-2). The composition has excellent rinsing performance and gives good feeling to the hand in use.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention provides a detergent composition, more specifically, a detergent composition that has significantly reduced irritation and damage to the skin and hair, and has excellent foaming and detergent properties. Moreover, the present invention relates to a detergent composition that has good rinsability and feels good on the hands during use.

[Problems to be solved by conventional techniques and inventions 3. Today, as people become more and more conscious about the safety of the human body, cleaning agents for clothes, kitchen cleaners, household cleaners, hair cleaners, and body cleaners are becoming increasingly important. Various attempts have been made to make detergents that often come into contact with human skin, such as detergents, to have a milder effect on the skin. For example, efforts have been made to lower the pH of the composition to 5
Adjusted to ~6 (weakly acidic), close to the pH of human skin,
Efforts are being taken to make the effect gentle on the skin, and to use the least irritating material as possible as the main cleaning base. Amino acid-based surfactants, alkyl phosphoric acid-based surfactants, etc. are used as such hypoallergenic cleaning bases (Japanese Patent Publication No. 40125-1983, Japanese Patent Publication No. 426023-1983, Japanese Patent Publication No. 426023-1983, Japanese Patent Publication No. 55-1982). -9033, Special Publication No. 58-27319).

However, although these surfactants are hypoallergenic, they have drawbacks such as not being able to exhibit sufficient foaming and cleaning power when used alone, and being poorly understood. In addition, sodium alkylbenzene sulfonate has traditionally been widely used in kitchen detergents as a base with excellent cleaning performance, but it has the disadvantage that it has strong degreasing power from the skin and tends to cause rough hands. ing.

Therefore, in recent years, kitchen detergents have become mainstream that are entirely based on sodium alkyl ethoxy sulfate, which is less irritating to the skin, and are also made with tertiary amine oxides and higher fatty acids. The combined use of co-surfactants such as jetanolamide has further improved the B6-performance and at the same time made the effect on the skin more mild.

However, although the effects of various detergents on the skin have become milder than before, the current situation is that they have not yet reached a fully satisfactory level.

On the other hand, alkyl glycosides, which are sugar derivative surfactants, are mild surfactants and even though they are nonionic surfactants, they not only generate stable foam by themselves, but also have other negative effects. It is known that it acts as a foam stabilizer for ionic surfactants, and has been attracting attention in recent years. For example, JP-A-58-104625 discloses a foaming surfactant composition containing an alkyl glycoside and an anionic surfactant, and JP-A-62-74999 discloses a foaming surfactant composition containing an alkyl glycoside and an anionic surfactant. A liquid detergent composition for hand-washing dishes that contains an activator and a fatty acid alkanolamide and is hypoallergenic and has excellent foaming power and detergency is described. However, although the performance of these detergent compositions is better than that of conventional detergents using 1=-IJ oxyethylene alkyl ether as the king agent, they are still not sufficient, especially in terms of rinsability and hand feel after washing. It has the problem of being inferior in terms of quality.

[Means for solving problems]

Under these circumstances, the present inventors conducted extensive research to maximize the properties of alkyl glycosides, and as a result, found that certain nitrogen-containing surfactants and polyhydric alcohols have the same properties. When used in combination with realkylene oxide adducts, skin irritation is further alleviated, and cleaning power and foaming power are also enhanced.
Furthermore, we discovered that rinsability and hand feel were improved.
The invention has been completed.

That is, the present invention comprises the following components (a), (b) and (c)
(a) Alkyl glycoside (b) The following general formulas (n), (III) and (IV)
[In the formula, Rls R3 and R5 each represent a linear or branched alkyl group or alkenyl group having 7 to 19 carbon atoms, R2 represents hydrogen or -(CHzCHzO)mH,
m represents a number from 5 to 20, R4 and R6 are -CH2C0
0M or -CH2CH2C00M (where M is hydrogen,
(indicates an alkali metal or alkanolamine),
R7 is hydrogen, -CH2C00M or -CH2CHzCO
OM (where M represents hydrogen, alkali metal or alkanolamine) One or more amide type surfactants (all shown) (c) Polyhydric alcohols having an average molecular weight of 300 to 4000 Contains a realkylene oxide adduct (however, the polyhydric alcohol is ethylene glycol and the alkylene oxide is propylene oxide), and the weight ratio of (b) / (a) is 1/300 ~
It is in the range of 1/2, and the weight ratio of (c) / (a) is 1
The purpose of the present invention is to provide a cleaning composition characterized in that the cleaning composition has a cleaning composition of 1/300 to 1/2.

In the present invention, the alkyl glycoside of component (a) is used as the main surfactant and has the following general formula (DRs (OR9) Represents an alkyl group, alkenyl group or alkylphenyl group having 8 to 18 carbon atoms, and R
9 represents an alkylene group having 2 to 4 carbon atoms, and G is an alkylene group having 5 carbon atoms.
It is a residue derived from a reducing sugar of ~6, X represents a number whose average value is 0 to 5, and y represents a number whose average value is 1 to 10.

In the above formula, R8 is a linear or branched alkyl group having 8 to 18 carbon atoms, an alkenyl group, or an alkylphenyl group, but from the viewpoint of solubility, foaming property, and detergency, R8 is particularly
-14 is preferred.

R9 is an alkylene group having 2 to 4 carbon atoms, and from the viewpoint of solubility in water, one having 2 to 3 carbon atoms is particularly preferred.

G is a residue derived from a reducing sugar having 5 to 6 carbon atoms, and its structure is determined by the monosaccharide, disaccharide or more sugar used as a raw material. Raw materials for this G include monosaccharides such as glucose, galactose, xylose, mannose, lyxose, arabinose, and mixtures thereof, and disaccharides and more such as maltose, xylobiose, isomaltose, cellobiose, gentibiose, lactose, sucrose, and nigerose. , mannose, raffinose, gunthianose, merezotose, and mixtures thereof. Among these, as monosaccharide raw materials, gelcol and fructose are preferred from the viewpoint of availability and low cost, and maltose and sucrose are preferred among disaccharides or more.

X represents a number whose average value is 0 to 5, and a particularly preferable average value is 0 to 2. This value (a> adjusts the water bathing property and crystallinity of the component. That is, the larger the value of X, the higher the water solubility and the lower the crystallinity.

Further, y indicates a number whose average value is 1 to 10, and a particularly preferable average value is about 1.0 to 3.0.

This is a preferable value in order to obtain a sufficient foaming effect even when the content of components (b) and (C), which will be described later as foaming agents, is smaller.

Furthermore, if the average of yf'i is greater than 1, that is, 2
When containing an alkyl glycoside represented by the general formula (1) in which a hydrophilic group is a sugar chain or more, the bonding mode of the sugar chain is 1-2.1-3.1-4.1-6 bond, or It is possible to include a-β-pyranosidic or furanosidic linkages and any mixtures of these mixed modes of linkage.

Note that the sugar chain length y can be measured by proton NMR method.

Component (a) is preferably blended in the composition of the present invention in an amount of 1 to 60% by weight (hereinafter simply referred to as ``H''), particularly 10 to 40% by weight.

The amide type surfactant as the component (b) in the composition of the present invention is represented by the general formulas (IIL (III) and (■)), and those represented by the general formula (II) are preferably , R1 is a linear alkyl group having 9 to 15 carbon atoms, R2 is hydrogen, and m is a number of 5 to 15. Preferred specific examples of the group represented by general formula (III) include N- Lauroyl-N'-carboxymethyl-N'-(2-hydroxyethyl)ethylenecyamine, N-lauroyl-N'-carboxyethyl-N'-(2-hydroxyethyl)ethylenecyamine, N-myristoyl-N'-carboxy Methyl-N'-
(2-hydroxyethyl)ethylenecyamine, N-mil
) Stoyl-N'-carboxyethyl-N'-(2-
hydroxyethyl) ethylenecyamine, N-/9lumitoyl-N'-calgeximethyl-N'-(2-hydroxyethyl)ethylenecyamine, N-noQlumitoyl-N
'-Rumegidiethyl-N'-(2-hydroxyethyl)ethylenecyamine and salts thereof may be mentioned. Further, preferred specific examples of those represented by the general formula (Il/) include N-lauroyl-N-(2-hydroxyethyl)-N'-carboxymethylethylenecyamine, N
-Lauroyl-N-(2-hydroxyethyl) -N'
, N'-bis(carboxymethyl)ethylenecyamine, N-lauroyl-N-(2-hydroxyethyl)
-N', N'-bis(carboxyethyl)ethylenecyamine, N-myristoyl-N-(2-hydroxyethyl)-N'-carboxymethylethylenezoamine, N
-Myristoyl-N-(2-hydroxyethyl) -N
', N'-bis(carboxymethyl)ethylenediami〉', N-myristoyl-N-(2-hydroxyethyl)-N', N'-bis(carboxyethyl)ethylenecyamine, N-no? lumitoyl-N-(2-hydroxyethyl)-N'-hydroxymethylethylenezoamine,
N-noQ lumitoyl-N-(2-hydroxyethyl)N
', N'-bis(carboxymethyl)ethylenecyamine, N-noQlumitoyl-N-(2-hydroxyethyl)-N', N'-his(carboxyethyl)ethylenecyamine, and salts thereof. .

Examples of the salt include alkali metal salts such as sodium salts, alkaline earth metal salts such as magnesium salts, alkanolamine salts such as triethanolamine salts, and ammonium salts. Furthermore, when these salts are used, they tend to contain inorganic salts as contaminants, but if some or all of these inorganic salts are removed, the amount of contaminant inorganic salts in the final liquid detergent composition will be 1% or less. It is preferable to use a desalted amidoamine type amphoteric surfactant.

These (b) components can be used alone or in combination of two or more.

When component (b) is added to a detergent composition containing component (a), the alkyl glycoside, the irritation to the skin is further alleviated, and the cleaning power and foaming power are also enhanced, and the rinsability and use are improved. It also has the effect of improving the feel of the hands.

In order to exhibit such effects, component (b) is preferably blended in the composition of the present invention in an amount of 0.1 to 10%, particularly 1 to 5%.

Component (c) in the composition of the present invention is a 2+) alkylene oxide adduct of a polyhydric alcohol. However, when the polyhydric alcohol is ethylene glycol, the alkylene oxide is propylene oxide.

The polyhydric alcohols used as raw materials for component (c) include dihydric alcohols such as ethylene glycol, globylene glycol, and neopentyl glycol; trivalent or higher hydric alcohols such as glycerin, broken glycerin, trimethylolzolonone, pentaerythritol, and nrubitol; alcohols are preferred. Among these, ethylene glycol or glycerin adducts with propylene oxide are particularly preferred. These (C) components may be used alone or in combination of two or more.

When component (C) is incorporated into a detergent composition containing an alkyl glycoside, it further alleviates skin irritation, enhances detergency and foaming power, and improves rinsability and hand feel during use. be done.

In order to exhibit these effects, the molecular weight of the polyalkylene oxide adduct of polyhydric alcohol must be between 300 and 4,000.
, preferably 500-2. It must be within the OOO range, and if it deviates from this range, the effect of alleviating skin irritation, the effect of increasing cleaning power and foaming power will be small, and the effect of improving rinsability and hand feel during use will be small. Not expressed.

(c) It is preferable that 0.1 to 10 K components be blended into the composition of the present invention. If the amount is less than 0.1%, the effects of the present invention will not be exhibited, and if it exceeds 10%, the stability of the composition will deteriorate, which is not preferable.

Further, the cleaning composition of the present invention has a weight ratio of (b)/(a) of 1/300 to 1/2, and (c)/(
a) so that the weight ratio is 1/300 to 1/2.

In addition to the above-mentioned essential components, the detergent composition of the present invention may optionally contain a known active agent for detergents for the purpose of improving detergency and foaming power. Such activators include, for example, t? Nonionic surfactant such as IJ oxyethylene (average number of moles added 4 to 20) alkyl (Ct to C18 linear or branched) ether; a
-Olefin (Ca-C2o) sulfonate CNa %
K % Mg % ) Lieta/-luamine (T E
A), NH4:), polyoxyethylene (average number of moles added 2 to 8) alkyl (Ca = Cps linear or branched) sulfate ester salt (Na, ni, Mg, TEA, N)
f4), a-sulfo fatty acid ester salt (Rlo-C
HCOOR+t, Rho', (4~ (
4s, Rat: C+ ~ C4, S
03 M'M'; alkali metal), N-acyl (Ca~Cts)
Anions such as glutamic acid [(Na, ni, TEA), monoalkyl (Ca~Cts) phosphate (NaS K, TEA, arginine L straight-furkyl (C+o-Cts)) benzenesulfonate (Na%K%Mg) Examples include sex activators and the like.

The pH range of the stock solution of the cleaning composition of the present invention is preferably 4 to 10, particularly preferably 5 to 8.

Further, other optional components can be added to the cleaning composition of the present invention within a range that does not impair the separation stability, cleaning performance, and foaming performance of the composition. For example, lower aliphatic alcohols such as ethyl alcohol, solubilizers such as sodium and potassium salts of toluenesulfonic acid and xylenesulfonic acid, and urea, viscosity modifiers such as clay minerals and water-bathable polymer substances, calcite, silica stone, etc. , water-insoluble abrasives such as calcium phosphate, zeolite, polyethylene, nylon, and polystyrene, humectants such as glycerin and sorbitol, feel improvers such as cationized cellulose, other enzymes, fragrances,
Colorants, preservatives, anti-mold agents, etc. can be added.

〔Effect of the invention〕

The cleaning composition of the present invention has excellent cleaning power and rich foaming power, has a mild action on the skin or hair, is less rough on the hands, has excellent rinsability, and has excellent hand feel when used. It is a hypoallergenic cleaning composition with high practical value.

〔Example〕

EXAMPLES Next, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited to these Examples.

(1) Foaming power test The foaming power is measured when 0.1% of commercially available butter is added as a stain component to a detergent solution with a detergent concentration of 0.5%. The measurement method is to put the detergent bath liquid 40i to which No. ζ tar has been added into a glass cylinder with a diameter of 5 mm, rotate and stir for 10 minutes, and measure the foam height immediately after stopping.

(2) Detergent power test 0.1 inch of Sudan ■ (red pigment) was added as an indicator to beef tallow, and this 2.52 was applied to a porcelain plate (diameter 250), detergent 32, water (use water; hardness 3.5°DH water＞
Scrub it at 20℃ using a sponge soaked in 27 tons, and show the number of dishes that have been washed until the beef tallow can no longer be removed from the plates. The concentration added is 0.
Rotate and stir 3 tons of 25 samples of sample solution for 10 minutes, then open the cock attached to the bottom of the foaming vat to drain only the liquid. Next, tap water 3 was poured into the container, and the solution was similarly stirred for 10 minutes to drain the water. Repeat this operation by changing the tap water until no bubbles are observed at all, and evaluate by the number of times the tap water is replaced.

Hand feel during and after use Prepare two types of detergents A and Bk, and prepare 10 layers of detergent solutions at 40°C in 2 ton beakers. detergent A,
The feel of the water bath solution B is compared by a sensory test as described below.

■ Feeling of liquid Immerse your left and right hands up to your wrists separately in detergents A and B.

The feel of the detergent after 1 minute of immersion is evaluated using the following evaluation points based on detergent A.

■ Feeling after use After rinsing thoroughly and wiping your hands with a dry towel, rate the feel of your hands using the following evaluation points based on Detergent A.

The above test was conducted on 10 test subjects, and the usability of detergent B was evaluated based on the sum of the scores obtained for each item.

(5) Hand roughness test A detergent go of 5% by weight was prepared, and the liquid temperature was adjusted to 3.
Keep your hands at 0°C and soak them for 20 minutes every day, then wash them thoroughly with water. Repeat this operation for 3 days. The condition of the hands of the five subjects was visually judged after 4 days according to the following criteria, and the results were expressed as an average score. The evaluation criteria at this time are as follows.

In this test, it is desirable that the average score is 4 points or higher.

5 points 2: Almost no rough hands observed 4 points: Only a slight roughness of the hands 3 points: Slight roughness of the hands 2 points: Severe roughness of the hands 1 point: Significant roughness of the hands Example 1 Table 1 below The composition shown in (A) was divided into A-pieces, and the detergency, foaming power, rinsability, feel of hands during and after use, and roughness of hands were evaluated using the above-mentioned evaluation method. The results are shown in Table 1.

The comparative detergents used for the hand feel tests during and after use were detergent A (17 in Table 1), and detergent B.
A comparative test was conducted for (1 to 16 in Table 1).

1': Margin 2 TEA, :) Reethanolamine The number represents the average molecular weight of the compound PO adduct using ethylene glycol as a starting material PO adduct using glycerin as a starting material Example 2 7 Yanzo (Hair) or for body use): Alkyl glycoside diamide type surfactant 2) 15 (weight t%) ? Lioxyethylene (p=2.5) lauryl ether sulfate triethanolamine salt PPG1500 (diol tie 7°) ethanol cation (Polymer JR400, UCCtl:!B)
0, 2 Appropriate amount of fragrance dye water (adjusted pH to 7.0) Remainder (pH adjusted to 7.0) 1) General formula (1) x=1, y=1.5Ra:
CIO-Cps R9 @c.

G Nigelcose Residue Example 3 Liquid light detergent for clothing: Alkyl glycoside 3) Amide type surfactant 20 (M amount %) Polyoxyethylene (p=4) Alkyl (012~
CI3) Ether sulfate (Na salt) KO adduct of glycerin (molecular weight 1ooo) Latex (average particle size 05 μ) Ethanol flavored color water 0, 5 appropriate amount appropriate amount balance (pH adjusted to 7.5 by 1) 3) General formula (1) ) x=o, :/=2.3R6 :
Coo-C14 (branched) G nigercose residue C,3HI7CONH(C2H40)aH Example 4 Bathroom cleaning agent: Alkyl glycoside' 5 (it%) amide type surfactant 2 EO adduct of pentaerythritol 3 ( Molecular weight: 1,500) Trace amount of citric acid flavor and coloring water (pH adjusted to 5.0) 5) General formula (1) x = O, Y = 1.5R1
1 a c, ~Cl+ G nigercose residue

Claims (1)

[Claims] 1. The following components (a), (b) and (c) (a) Alkyl glycoside (b) The following general formulas (II), (III) and (IV) ▲ Numerical formula,
There are chemical formulas, tables, etc. ▼ (II) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (III) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (IV) [In the formula, R_1, R_3, and R_5 each have 7 carbon atoms. ~1
9 represents a linear or branched alkyl group or alkenyl group, R_2 is hydrogen or -(CH_2CH_2O)_
mH, m represents a number from 5 to 20, R_4 and R_
6 is -CH_2COOM or -CH_2CH_2COO
M (where M represents hydrogen, alkali metal or alkanolamine), R_7 is hydrogen, -CH_2COO
M or -CH_2CH_2COOM (where M is hydrogen,
(indicates an alkali metal or alkanolamine)]
(c) A polyalkylene oxide adduct of a polyhydric alcohol having an average molecular weight of 300 to 4,000 (However, when the polyhydric alcohol is ethylene glycol, alkylene The oxide is propylene oxide), and the weight ratio of (b)/(a) is 1/300 to 1/
2, and the weight ratio of (c)/(a) is 1/300
A cleaning composition characterized in that the cleaning agent composition has a cleaning composition of 1/2 to 1/2. 2. Component (a) has the following general formula (I) R_8(OR_9)_xG_y(I) [In the formula, R_8 is a linear or branched alkyl group having 8 to 18 carbon atoms, an alkenyl group, or an alkylphenyl group. , R_9 represents an alkylene group having 2 to 4 carbon atoms, and G
is a residue derived from a reducing sugar having 5 to 6 carbon atoms, x indicates a number whose average value is 0 to 5, and y indicates a number whose average value is 1.
The cleaning composition according to claim 1, which is represented by the following formula: -10. 3. The cleaning composition according to claim 1, wherein component (c) is an adduct of ethylene glycol or glycerin with polypropylene oxide.