JPH0617088A - Milky detergent composition - Google Patents

Abstract

PURPOSE:To obtain a milky detergent composition which presents a beautiful pearlescent appearance, is axcellent in detergency and foaming ability, and has good long-term dispersion stability by mixing a specified alkyl glycoside, an anionic surfactant, an opacifying agent and a specified polyhydric alcohol/ polyalkylene oxide adduct. CONSTITUTION:The composition is obtained by mixing 1-40wt.% alkyl glycoside of formula I (wherein R<1> is 8-18C linear or branched alkyl, alkenyl or alkylphenyl; R<2> is 2-4C alkylene; G is a residue derived from a 5-6C reducing sugar; x is 0 to 5 on average; and y is 1.0 to 1.42 on average), 1-40wt.% anionic surfactant, 1-10wt.% opacifying agent, and 1-10wt.% polyhydric alcohol/ polyalkylene oxide adduct having an average molecular weight of 300 to 4,000. As the opacifying agent, it is desirable to use a compound selected from among those of formula II (wherein R<3> is 15-23C alkyl or alkenyl; n is 1 to 3; and A is a 15-24C fatty acid residue) and formula III (wherein R<3> is as defined above) and a glyceride of a 16-24C fatty acid.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a milky liquid detergent composition, and more particularly, an emulsion having a beautiful appearance of pearly luster or milky white color, excellent washability and foamability, and long-term dispersion stability. Detergent composition.

[0002]

2. Description of the Related Art Conventionally, liquid detergents such as shampoos, rinses, facial cleansers and kitchen detergents are given a pearlescent luster or a milky white appearance for the purpose of increasing their commercial value. Is being done. For this reason, long-chain fatty acid glycol esters, long-chain fatty acid alkanolamides, etc. are used as so-called opacifying agents.

Usually, in order to prepare a detergent composition exhibiting a pearly luster or milky white, an opacifying agent which is solid at room temperature is added at the time of preparation of a liquid detergent, and after heating and melting, it is cooled and crystallized. A method or a method in which a concentrated dispersion liquid having a pearly luster or a milky white color obtained by previously melting an opacifying agent and cooling or a concentrated opalescent liquid is mixed with another detergent component at room temperature is adopted. According to these methods, in the final composition, the opacifying agent will be dispersed in the composition in the form of fine crystals or solids.

[0004]

However, in the conventional milky liquid detergent composition, the opacifying agent is not sufficiently stable in dispersion, so that it may be separated by storage for a long period of time to cause precipitation. . In addition, when the amount of the opacifying agent added is increased to improve the aesthetics of the detergent, there is a problem that foaming which is the basic performance of the detergent is reduced.

Therefore, it has been desired to develop a milky liquid detergent composition which has a beautiful pearly luster or a milky white color and which can maintain a rich foaming and a uniform dispersed state for a long period of time.

[0006]

Means for Solving the Problems As a result of intensive studies in view of such circumstances, the present inventors have found that specific alkyl glycosides, anionic surfactants, opacifying agents, and polyalkylene oxide adducts of specific polyhydric alcohols. The inventors have found that the milky liquid detergent composition obtained by blending each of these in a specific ratio has a beautiful appearance, and that it does not form phase separation or precipitate even when stored for a long period of time, and completed the present invention.

That is, the present invention provides the following component (a),
(B), (c) and (d): (a) The following general formula (1)

[0008]

[Chemical 3]

(In the formula, R ¹ represents a linear or branched alkyl group having 8 to 18 carbon atoms, an alkenyl group or an alkylphenyl group, and R ² represents an alkylene group having 2 to 4 carbon atoms. , G represents a residue derived from a reducing sugar having 5 to 6 carbon atoms, x represents a number having an average value of 0 to 5, and y represents a number having an average value of 1.0 to 1.42. Of 1 to 40% by weight, (b) 1 to 40% by weight of anionic surfactant, (c) 1 to 10% by weight of opacifying agent, and (d) an average molecular weight of 300 to 4000. The present invention provides a milky liquid detergent composition containing 1 to 10% by weight of a polyalkylene oxide adduct of a polyhydric alcohol.

The component (a) alkylglycoside used in the present invention is represented by the above general formula (1). In the formula, the carbon number of R ¹ is preferably 10 to 14 from the viewpoint of solubility, foaming property, detergency and the like. The carbon number of R ² is preferably 2 to 3 from the viewpoint of solubility in water and the like.

The structure of G is determined depending on whether the raw material used is a monosaccharide or a disaccharide or more. Specific examples of the raw materials will be given below. Examples of monosaccharides include glucose, galactose, xylose, mannose, lyxose, arabinose and the like, and mixtures thereof. Examples of two or more sugars include maltose, xylobiose, gentibiose, lactose, sucrose, nigerose, turanose, raffinose, gentianose, Examples thereof include melezitose and the like, and mixtures thereof. Among these, preferred monosaccharides include glucose and fructose from the viewpoint of their availability, and examples of the two or more sugars include maltose and sucrose.

The value of x is an index showing the relationship between water solubility and crystallinity of the alkyl glycoside. That is, the larger x is, the higher the water solubility is, and thus the lower the crystallinity is.
The smaller x is, the lower the water solubility is, and therefore the crystallinity is improved. The average value of x is preferably 0 to 2.

When the average value of y is larger than 1, that is, when the alkyl glycoside (1) has a sugar chain having two or more sugars as a hydrophilic group, the sugar chain bonding modes are 1-2, 1-3, 1
-4, 1-6 bonds, further α-, β-pyranoside or furanoside bonds and mixtures thereof. In the present invention, the y value is measured by proton N
According to MR.

In the present invention, the component (a) can be used alone or in combination of two or more kinds.
The content of the component (a) in the composition of the present invention is 1 to 40% by weight.
(Hereinafter referred to as%), and preferably 5 to 20%. If the content is less than 1%, the foaming power and detergency are not sufficient, while if it exceeds 40%, the composition remarkably thickens, and it is difficult to take the composition out of the filling container. Inconvenience occurs.

The anionic surfactant of the component (b) used in the present invention is not particularly limited as long as it has good compatibility with the component (a), but the following (1) to (5) Those shown in () are preferable.

(1) The following general formula

[0017]

[Chemical 4]

(Wherein R ⁴ represents an alkyl group or an alkenyl group having 10 to 18 carbon atoms, M represents an alkali metal, alkaline earth metal, ammonium or alkanolamine, and m represents a number of 0 to 7). , R ² has the same meaning as described above), or a polyoxyalkylene alkyl ether sulfate or an alkyl sulfate.

(2) The following general formula

[0020]

[Chemical 5]

(Wherein R ⁵ represents a linear or branched alkyl or alkenyl group having 8 to 18 carbon atoms, and M has the same meaning as defined above).

(3) The following general formula

[0023]

[Chemical 6]

(Wherein R ⁶ represents an alkyl group or an alkenyl group having 8 to 18 carbon atoms, R ⁷ represents an alkyl group having 1 to 3 carbon atoms, and M has the same meaning as defined above).
-Sulfo fatty acid ester salts.

(4) Alkali metal salts, alkaline earth metal salts, ammonium salts, alkanolamine salts and the like of α-olefin sulfonic acids having 10 to 18 carbon atoms.

(5) Alkali metal salts, alkaline earth metal salts, ammonium salts, alkanolamine salts and the like of alkanesulfonic acids having 10 to 18 carbon atoms.

The component (b) can be used alone or in admixture of two or more. The component (b) is contained in the composition of the present invention in an amount of 1 to 40%, preferably 5 to 20%.

The opacifying agent of component (c) is dispersed in the composition of the present invention in crystalline or solid form. The component (c) is not particularly limited as long as it can impart a pearly luster or milky white appearance to the composition of the present invention, and can be derived from natural products such as fish scales and mica chips, or can be chemically synthesized. Although it may be a product, a chemically synthesized product is preferable in terms of quality stability, ease of handling during production, etc. Further, in terms of dispersion stability and foamability, the following general formulas (2), (3)

[0029]

[Chemical 7]

A compound represented by and a carbon number of 1
Glycerin monofatty acid esters of 6 to 24 are preferred.

These compounds can be used alone or in admixture of two or more. The component (c) is contained in the composition of the present invention in an amount of 1 to 10%, preferably 1 to 6%. If it is less than 1%, a beautiful pearly luster or milky white appearance cannot be obtained, and if it exceeds 10%, the dispersion stability is deteriorated.

The polyalkylene oxide adduct of the polyhydric alcohol of the component (d) is added to the detergent composition comprising the above components (a) to (c) in an appropriate amount to prepare the component (c).
Suppresses the decrease in foaming power due to the compounding of and further significantly improves the dispersion stability of the component (c), but in order to exert the effect,
The average molecular weight of the compound must be in the range of 300-4000. Above this range, the above effect cannot be obtained. The component (d) is contained in the cleaning composition in an amount of 1 to 10%. If it is less than 1%, the effect is insufficient, and if it exceeds 10%, the dispersion stability is adversely affected.

Particularly preferred specific examples of the component (d) include a polyethylene oxide adduct or a polypropylene oxide adduct of ethylene glycol or glycerin.

In the cleaning composition of the present invention, in addition to the above-mentioned essential components, various components can be blended, if necessary, within a range that does not impair the intended effect. Examples of the surfactant include nonionic surfactants such as polyoxyethylene alkyl ether, polyoxyethylene alkylphenyl ether, and fatty acid alkanolamide, and amphoteric surfactants such as alkyl betaine and alkyl sulfobetaine. Examples of the solubilizer include lower alcohols such as ethanol and isopropanol, polyhydric alcohols such as ethylene glycol, propylene glycol, glycerin and sorbitol, p-toluenesulfonate, m.
-Aromatic sulfonates such as xylene sulfonate. In addition, flavors, pigments, preservatives, fungicides, thickeners and the like can be added as desired.

In order to produce the milky liquid detergent composition of the present invention, the opacifying agent of component (c) is heated and melted at the time of production to be mixed with other components and then crystallized, or the component (c) is preliminarily crystallized. After preparing the concentrated dispersion of 1), it may be mixed with other components.

[0036]

EFFECTS OF THE INVENTION The milky liquid detergent composition of the present invention stably maintains a beautiful pearly luster or milky white appearance for a long period of time, thereby providing a high-grade feeling and a mild feeling. Further, the composition has excellent detergency and foaming power, and has a mild action on the skin. Therefore, the emulsion cleaning composition of the present invention is for shampoo, body shampoo,
It can be widely applied for hand washing, face washing, kitchen, home, clothing, etc.

[0037]

EXAMPLES The present invention will be described in detail below with reference to examples, but the present invention is not limited thereto. First, the test method adopted in the following examples will be described.

(1) Observation of appearance: A sample is put in a 100 ml transparent glass container and the appearance of the liquid is observed with the naked eye. The judgment criteria are as follows. ◯: Has a uniform pearly luster. X: Pearly luster is non-uniform, and a clear liquid or emulsion-like separation layer is recognized. XX: No pearly luster is observed, and a transparent liquid or emulsion-like appearance is exhibited.

(2) Storage stability: A sample is placed in a transparent glass container having a volume of 100 ml and stored in a thermostatic chamber at -5 ° C, 30 ° C and 40 ° C for one month. The appearance of each sample after storage is judged according to the appearance observation in (1) above.

(3) Foaming power: Commercially available butter was used as a stain component to prepare a detergent solution having a detergent composition concentration of 0.5% (water;
The foaming force when 0.1% is added to 3.5 ° DH hard water) is measured. For the measurement, 40 ml of the above sample was put in a glass cylindrical container having a diameter of 5 cm, 20 rubber balls having a diameter of 1 cm were further put in order to generate a foaming mechanical force, and the mixture was vortexed at 20 ° C. for 15 minutes to stop foaming after stopping. This is done by observing the height.

Examples 1 to 4 and Comparative Examples 1 to 3 A detergent having the composition shown in Table 1 was prepared by the following method, and the appearance immediately after the preparation, the storage stability and the foaming power were observed. The results are also shown in Table 1.

(Manufacturing Method) The components shown in Table 1 are mixed and heated, and the temperature is raised to 80 ° C. to melt the component (c). Then, it is cooled to 30 ° C. in about 2 hours while continuing stirring.

[0043]

[Table 1]

Examples 5 to 8 and Comparative Examples 4 to 7 A cleaning composition whose composition is shown in Tables 2 and 3 below was prepared as Example 1.
Was prepared in the same manner as above, and the appearance, storage stability and foaming power immediately after preparation were observed. The results are also shown in Table 3.

[0045]

[Table 2]

[0046]

[Table 3]

As shown in Tables 1 and 3, Examples 1 to 8 which are the products of the present invention are all comparative products (Comparative Examples 1 to 1).
It can be seen that, as compared with 7), it has good appearance, storage stability and foaming power. Further, the detergency of the present invention was far better than that of the comparative product.

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Claims (3)

[Claims] 1. The following components (a), (b), (c) and (d): (a) The following general formula (1): (In the formula, R ¹ represents a linear or branched alkyl group having 8 to 18 carbon atoms, an alkenyl group or an alkylphenyl group, R ² represents an alkylene group having 2 to 4 carbon atoms, and G represents (Indicates a residue derived from a reducing sugar having 5 to 6 carbon atoms, x represents a number having an average value of 0 to 5, and y represents a number having an average value of 1.0 to 1.42) Alkyl glycoside represented by 1 to 40% by weight, (b) anionic surfactant 1 to 40% by weight, (c) opacifying agent 1 to 10% by weight, (d) polyhydric alcohol having an average molecular weight of 300 to 4000 1 to 10% by weight of a polyalkylene oxide adduct of 1., a milky liquid detergent composition. 2. The component (c) is represented by the following general formulas (2) and (3): And 1 or 2 or more kinds selected from the group consisting of glycerin monofatty acid ester having 16 to 24 carbon atoms, and the milky liquid detergent composition according to claim 1. 3. The emulsion cleaning composition according to claim 1, wherein the component (d) is a polyethylene oxide adduct of ethylene glycol or glycerin or a polypropylene oxide adduct.