JPH06179892A - Detergent composition - Google Patents

Abstract

PURPOSE:To obtain a detergent compsn. which is excellent in physical cleaning effects, neither irritates nor injures the skin, and provides improved feeling (sliminess, fresh feeling) in use by incorporating a specific porous spherical silica into the compsn. CONSTITUTION:A detergent compsn. is obtd. by compounding 0.01-10wt.% spherical porous silica having a mean particle diameter of 0.1-100mum and a volume of micropores of 0.5ml/g, the main surfactant in an amt. described below, and required amts. of a foaming improver, a consistency improver, a pearlescence agent, a thickener, a wetting agent, a colorant, an antiseptic, a perfume, a bactericide, etc. The main surfactant is compounded in an amt. of 60-90wt.% when the cleaning component is solid, 30-70wt.% when it is pasty, 20-70wt.% when it is a gel, and 10-60wt.% when it is liq.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a detergent composition,
More specifically, it contains a specific spherical porous silica, has excellent physical (mechanical) detergency, does not cause irritation or damage to the skin, has little sliminess after washing, and has a clean wash. The present invention relates to a detergent composition which gives excellent feeling in use.

[0002]

2. Description of the Related Art In recent years, consumers' awareness of cleanliness has been increasing year by year, and cleanliness is the basis of daily life, and various functions and effects are especially required for cleaning agents. As for the functions required for cleaning agents such as body cleaning agents and facial cleansers, first of all, the basic functions of the cleaning agent are extrinsic dirt such as dust and microorganisms (bacteria), sebum, sweat, and dead keratin. It is a function to wash and remove the intrinsic dirt. Next, from the viewpoint that the skin performs various physiological actions as one organ of ecology, it is required not to impair the physiological function of the skin or to damage the skin. Furthermore, the feeling of use after washing is also an important function, and in recent years, there has been a strong demand for a refreshing finished feeling without the skin becoming dull especially after washing.

For the purpose of improving the function and the feeling of use, a detergent containing a scrubbing agent, a clay mineral, a polymer compound or the like has been proposed. For example, a scrub skin cleansing agent containing 2.5 to 20% by weight of pearls and / or pearl chips having a particle size of 100 to 1000 μm (JP-A-56-13152). Detergent containing montmorillonite as a clay mineral (JP-A-1-
No. 190622). Average particle size is 100-1000
A detergent composition containing polymer particles having a specific elastic modulus of μm (JP-A-2-151693) is disclosed.

[0004]

However, the above-mentioned cleansing agent is not sufficient as a skin cleansing agent since it has a large particle size and an irregular shape and is hard so that it may damage the skin surface. When applied to the detergent for higher fatty acid soap, etc., the detergent of (1) causes precipitation of montmorillonite, and it is sticky, and the feeling of use is not sufficient. Further, although the detergent composition (1) has an excellent cleaning effect, it is not sufficiently effective in terms of the feeling of use such as a freshly washed product, so that it is not completely satisfactory.

As described above, in the conventional technique, the washing property, the low irritation property, and the feeling of use (there is no slimyness and refreshing after washing) are incompatible with each other, and in order to achieve any one of them, There was a problem that the other effect had to be sacrificed, and its solution was strongly desired.

[0006]

In view of such circumstances, the inventors of the present invention have conducted diligent research to develop a detergent composition which has improved the problems and drawbacks of the above-mentioned prior art, and as a result, have a specific particle size and fine particle size. By incorporating spherical porous silica with pore volume into the detergent, it has a high cleaning effect, does not cause irritation or damage to the skin, and has a feeling of use (reduces sliminess after cleaning and is refreshing. The present invention has been completed by finding that a cleaning agent having an excellent washability can be obtained.

That is, the present invention has an average particle size of 0.1 to 0.1.
It is intended to provide a detergent composition comprising 100 μm and a spherical porous silica having a pore volume of 0.5 ml / g or more.

The present invention will be described in detail below. The spherical porous silica blended in the present invention has a chemical composition,
Silicon dioxide (SiO ₂ ), a white odorless, chemically stable compound. The shape thereof is spherical or spherical, and the hollow porous spherical silica in which the central portion of the spherical porous silica is hollow is also included in the present spherical porous silica.

The average particle size of the spherical porous silica is 0.1 to 1
The particle size is 00 μm, and preferably 1 to 20 μm. If it is less than 0.1 μm, a sufficient feeling cannot be obtained,
When it exceeds 100 μm, uncomfortable feeling and damage to the skin are exhibited, which is not preferable. Further, the pore volume of the spherical porous silica is
0.5 ml / g or more, preferably 1.0 ml / g
g or more. If it is less than 0.5 ml / g, the specific gravity of the spherical porous silica increases, and separation, precipitation and the like occur in the detergent composition, which is not preferable.

The blending amount of the spherical porous silica used in the present invention can be appropriately selected according to the actual application form, but is 0 based on the total weight of the prescription components in the detergent composition (weight of the composition). 0.01 to 10% by weight, preferably 0.1 to 5% by weight. If the amount is less than 0.01% by weight, the desired effect is difficult to be exhibited, and considering the stability in the formulation system and the feeling of use, the amount is preferably 10% by weight or less.

As the spherical other-porous silica used in the present invention, known ones which are usually commercially available can be used, and examples thereof include tradenames Sildex H-31 and H-3.
2, H-51, H-52, H-121, H-122, L
-31, L-51, L-121 (manufactured by Asahi Glass Co., Ltd.),
Product name Godball B-6C, A-11C, B16
C, B-25C, E-60C, D-11C, E-16
Examples thereof include C, E2-C (manufactured by Suzuki Yushi Co., Ltd.), but are not limited thereto.

The main surfactant used in the detergent composition of the present invention is not particularly limited, and examples thereof include fatty acid soap, carboxylic acid type activator, alkyl sulfate ester type activator, sulfosuccinate type activator, taurate type, Acyl sarcosine-based and acyl-β-alanine-based acylated amino acid type activators, phosphoric acid ester-type activators and other anionic activators, alkyl saccharides, EO addition-type surfactants and other nonionic surfactants, and the like. To be Among them, fatty acid soaps, carboxylic acid type activators, acylated amino acid type activators and the like are preferable because they are less sticky after use and cause less skin irritation.

The blending amount of the main surfactant is not particularly limited, but when the detergent is solid, it is 60 to 90%, when it is paste, it is 30 to 70%, when it is gel, it is 20 to 70%, and when it is liquid, it is 10%. It is preferable to blend -60%.

In addition to the main surfactant, it is also preferable to use an amine oxide, an imidazoline type or a betaine type amphoteric active agent in order to improve the foamability and to have an appropriate viscosity.

The detergent composition of the present invention can prevent the separation and aggregation of the spherical porous silica by using it together with a pearly luster such as fatty acid glycol diester and a thickener such as hydroxyethyl cellulose. It is possible to improve long-term daily stability.

In addition to the above-mentioned components, components usually used in detergents, such as wetting agents, colorants, preservatives, feel-improving agents, fragrances, bactericides, anti-inflammatory agents, ultraviolet absorbers, etc. can be used for the effects of the present invention. It can be used within a range that does not impair it.

The detergent composition of the present invention can be widely used, for example, as a whole-body detergent, a bar soap, a skin detergent such as a facial cleanser, a dishwashing agent, a contact lens detergent, and the like.

[0018]

EXAMPLES Next, the present invention will be described in detail with reference to examples, but the present invention is not limited thereto. The blending amount is% by weight. Prior to the examples, the evaluation method will be described.

(1) Measurement of cleaning effect: The artificial sebum containing 2% carbon black was applied to the measurement site of the left forearm and dried for a certain period of time, and then the upper dirt was wiped off so that the dirt remained in the skin groove. I chose Next, using a colorimeter (made by Minolta), the brightness (L
₂ ) is measured, and at the same time, the brightness (L ₁ ) of the uncoated area is also measured. Next, a cleaning process was performed with each cleaning agent. After the washing treatment, the left forearm is dried, and the brightness (L ₃ ) of the treated portion is measured again. The washing ratio was calculated from the lightness values obtained by the above equations.

Cleaning rate (%) = 100 × (L ₂ -L ₃ ) /
(L ₂ -L ₁₎

(2) Measurement of irritation and damage to the skin For 10 sensory panelists, a specific amount of the lower left arm was accurately measured for 60 seconds with a low-moisture sponge containing 1.0 g of each detergent. To wash. Then, the washing section is dried,
After performing this washing treatment 3 times a day, a total of 15 times, each test site was visually observed by a skilled appraiser and evaluated according to the criteria in Table 1, and the average value of the scores of 10 sensory panelists was calculated. Evaluated.

[0022]

[Table 1]

(3) Evaluation of feeling of use 20 professional beauty technicians were made to use each cleaning agent,
With respect to the slimy feeling and refreshing feeling of the skin after washing, it was judged by a 5-point evaluation according to the criteria of Table 2, an average value was calculated, and the average values are shown by symbols of ◯, Δ, and X according to the criteria of Table 3. .

[0024]

[Table 2]

[0025]

[Table 3]

Examples 1-3 and Comparative Examples 1-3 Table 4 shows the formulation and evaluation results of the body shampoo prepared by a conventional method. As is clear from Table 4, Examples 1-3 of the present invention were superior to Comparative Examples 1-3 in terms of cleaning effect, skin irritation, and feeling of use (lubricity, refreshing feeling).

[0027]

[Table 4]

Example 4 A soap having the following composition was produced by a conventional method.

Example 5 A face-wash foam having the following composition was produced by a conventional method.

Example 8 A liquid soap having the following composition and used for showering was prepared by a conventional method.

Example 7 A body shampoo having the following composition was produced by a conventional method.

The cleaning agents of Examples 4 to 7 were all good in terms of cleaning effect, skin irritation, and feeling of use (lubricity, refreshing feeling).

[0033]

The cleaning composition of the present invention has an excellent physical cleaning effect, does not cause irritation or damage to the skin surface, and has a feeling of use (smoothness of the skin is small and a clean wash is obtained). It is intended to provide a detergent composition having an excellent rising property.

Claims (1)

[Claims] 1. An average particle diameter of 0.1 to 100 μm,
A cleaning composition comprising spherical porous silica having a pore volume of 0.5 ml / g or more.