JP3397405B2 - Hygiene composition - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel sanitary composition, and more particularly, it is characterized by containing a nonionic surfactant which is liquid or pasty at room temperature and a specific liquid oil. The present invention relates to a hygienic composition for the anus and pubic region, which contains a lower alcohol in accordance with the above, has excellent effects of improving skin roughness and cleansing without irritating the skin and mucous membranes, and has a good feeling in use.

[0002]

2. Description of the Related Art Conventionally, to clean the anus and genital area,
Paper wiping is generally performed. This is simple,
Although it is an advantageous method in terms of being inexpensive,
On the other hand, rubbing during wiping may damage the surrounding skin and mucous membranes and cause pain. In particular, when the surrounding skin or mucous membrane has a wound or a disease, it is often the cause of further scratching or aching pain.

For this reason, in order to prevent damage due to friction during wiping, various kinds of cleaning articles in which a non-woven fabric is impregnated with a surfactant or the like have been proposed and commercialized.

Further, in recent years, washing with water or warm water using a warm water washer has become quite popular, and it has been established as a method having a refreshing feeling on the back skin and a high cleaning effect without causing scratches or pain due to friction. It's starting.

[0005]

However, even if a washing device is used, the skin and mucous membranes are not roughened. If used frequently, sebum degreasing occurs due to repeated washings, and the skin and mucous membranes are roughened. There were many cases that led to.

[0006]

Therefore, as a result of intensive studies, the inventors of the present invention have blended a nonionic surfactant that is liquid or pasty at room temperature with a specific liquid oil and, if necessary, a specific amount of a lower alcohol. When an oil-in-water type (hereinafter referred to as "O / W type") emulsion cleaning solution obtained by adding the composition to the wash water is used, the skin and mucous membranes are mildly irritating, and oil remains on the back skin for a moisturizing effect. The inventors have found that they are excellent in the effect of improving rough skin and also have a good cleaning effect, and have completed the present invention.

That is, the present invention provides the following components (A) and (B) (A) polyoxyethylene sorbitan fatty acid ester,
Polyoxyethylene glycerin fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene castor oil, polyoxyethylene sorbit fatty acid ester, polyoxyethylene / polyoxypropylene alkyl ether, polyglycerin fatty acid ester, polyethylene glycol fatty acid ester, polyoxyethylene alkyl One or two or more nonionic surfactants selected from phenyl ethers, polyoxyalkylene-modified silicones, and alkylpolyoxyalkylene-modified silicones, which are liquid or pasty at room temperature. % (B) Castor oil, olive oil, avocado oil, palm oil,
Safflower oil, cacao oil, liquid paraffin, squalane, isopropyl myristate, octyldodecyl myristate, cetyl 2-ethylhexanoate, isocetyl stearate, isocetyl myristate, palmitic San'i
An isopropyl, selected liquid lanolin, acetic acid lanolin
One or two or more kinds and 30 to 97% by weight of a liquid oil containing a silicone oil are contained , and 0.
1 to 70% by weight of silicone oil, and further, if necessary, containing less than 30% by weight of ethanol, which is used by adding to washing water or warm water for use.
A sanitary composition for the genital area is provided.

The nonionic surfactant which is liquid or paste-like at room temperature and which is used as the component (A) in the present invention contains a non-water soluble component such as liquid oil as the component (B) when added to the washing water. It is used for dispersing as a / W type emulsion, as a greasing agent for the skin after washing, as a touch control agent, and for improving the washing effect.

The component (A) is polyoxyethylene.
Sorbitan fatty acid ester, polyoxyethylene glycerin fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene castor oil, polyoxyethylene sorbit fatty acid ester, polyoxyethylene / polyoxypropylene alkyl ether, polyglycerin fatty acid ester, polyethylene glycol fatty acid ester, Examples thereof include polyoxyethylene alkylphenyl ethers, polyoxyalkylene-modified silicones, and alkylpolyoxyalkylene-modified silicones. Of these, liquid or pasty ones can be used alone or in combination of two or more.

If this nonionic surfactant is in a solid form, it tends to cause precipitation over time, which is not preferable. Also,
The amount of the component (A) in the product of the present invention is 3 to 70% by weight (hereinafter,
Simply indicated by "%") is preferred. If it is less than 3%, the amount is insufficient and it is difficult to quickly emulsify it, or the emulsion is separated. Further, if it is blended in an amount of more than 70%, stickiness or the like will occur, which is not preferable in terms of sensory characteristics.

The liquid oil which is the component (B) in the present invention is emulsified by the above-mentioned component (A) in washing water, adsorbs and permeates the skin and mucous membranes during washing, and remains after washing. Therefore, the excessive loss of sebum caused by washing water is compensated for, the back skin is moistened, and the emollient effect exerts a protective effect on the anus and genital area.

As the component (B), castor oil, olive oil, avocado oil, palm oil, safflower oil, cocoa oil,
Liquid paraffin, squalane, isopropyl myristate, octyldodecyl myristate, cetyl 2-ethylhexanoate, isocetyl stearate, myristic San'i
Socetyl, isopropyl palmitate, liquid lanolin,
One or more selected from lanolin acetate , and
It is a liquid oil containing corn oil.

However, in order to achieve sufficient effects such as emulsification in water, stability of washing water obtained by emulsification with time, and refreshing feeling after use of the washing liquid, the amount of the liquid oil of the component (B) of 0. 1 to
It is essential that 70% is silicone oil. Specifically, for example, one or more silicone oils or silicone derivatives such as dimethyl silicone, phenyl modified silicone, alkyl modified silicone, cyclic silicone, etc. can be used. If the content of the silicone oil in the component (B) is less than 0.1%, the above effect is not sufficient, and if it is more than 70%, the ratio of other liquid oil components is low and the emollient effect and the protective effect are lowered. Resulting in.

The blending amount of the component (B) having the above-mentioned specific ratio is preferably 30 to 97%. If it is less than 30%, the emollient is insufficient, and if it is more than 97%, the necessary amount of the component (A) cannot be blended.

Furthermore, in order to impart a refreshing feeling and to adjust the emulsifying property in water due to a decrease in viscosity, etc., ethano may be added , if necessary.
It can be incorporated Lumpur. However, if the blended amount is 30% or more, the irritation to the anus and the genital area becomes strong,
This is outside the purpose of the present invention aiming at the protective effect.

In the present invention, in addition to the above components, a detergent, an ionic surfactant, a highly viscous oil, an oily gelling agent, a polyhydric alcohol, water, a moisturizer, a fragrance, a pigment such as a dye, a pearlescent agent, Preservatives, bactericides, antistatic agents, antioxidants, other agents such as anti-inflammatory agents, cosmetic ingredients and the like can be added within a range that does not impair the effects of the invention.

The sanitary composition for the anus and genital region of the present invention can be easily emulsified and dispersed by adding an appropriate amount to washing water to give a cloudy detergent. The method of adding the product of the present invention to the wash water may be any method, but in the case of a general mechanical hot water washer, a method of adding an appropriate amount to the wash water tank in advance may be used. It's simple.
Further, a system for adding the product of the present invention can be incorporated in the warm water washer itself.

The composition of the present invention can adjust the white turbidity of washing water, sensory characteristics and effects by appropriately adjusting the amount added to water, but generally, the weight ratio to water is 0. It is preferable to add it so as to be 001 to 20%.

Further, the composition of the present invention is 0.001-2.
It is also possible to add and disperse it in water or warm water in advance so as to be 0%, and use it as a sanitary cleansing agent for the anus and genital area.

[0020]

EXAMPLES Next, the present invention will be further described with reference to examples, but the present invention is not limited to these examples.

Examples 1 to 4 and Comparative Examples 1 to 5 The ingredients shown in Table 1 were mixed or dissolved by heating to obtain hygienic compositions for the anus and genital area.

[0022]

[Table 1]

(Evaluation) With respect to the hygienic compositions for the anus and genital area of Examples 1 to 4 and Comparative Examples 1 to 5, the stability of the composition, the emulsification dispersibility, the stability and usability of the emulsified dispersion were evaluated. did.

(1) Stability test Each composition was allowed to stand in a constant temperature bath at 40 ° C. and 5 ° C. for 2 weeks, and its stability was visually observed. Those that were stable and did not change were evaluated as ⊚, and those that caused appearance changes such as white turbidity, separation, and precipitation were evaluated as x.

(2) Emulsion Dispersibility Test and Emulsion Dispersion Stability Test 10 g of each composition was added to 1 liter of warm water (35 ° C.) to evaluate the emulsion dispersibility. Further, the emulsification dispersibility was evaluated by observing a change in appearance after standing for 1 week at room temperature.

(Evaluation of Emulsion Dispersibility) ⊚: Uniformly emulsified and dispersed very easily. ◯: Emulsified and dispersed relatively easily. Δ: A considerable amount of stirring is required to emulsify and disperse. X: Cannot be emulsified and dispersed.

(Evaluation of stability of emulsified dispersion) A: There is no change in appearance and stability is good. ◯: There is some cloudiness at the top. Δ: There is separation of oil content or solid content. X: Two layers are separated.

(3) Usability test The emulsified dispersion obtained in the above test (2) was used by 10 evaluation panels to wash the anus and the pubic area to remove stains, irritation during washing, and after washing. Each of the moist feeling, refreshing feeling and skin roughening improving effect was subjected to an absolute evaluation in 5 grades, and the average score was further divided into 4 grades for evaluation.

Absolute evaluation 5: Very good 4: good 3: Normal 2: Somewhat bad 1: Bad

4-step evaluation (average score) 4.0-5.0: Very good (◎) 3.0 to 3.9: Good (○) 2.0 to 2.9: Somewhat bad (△) 1.0 to 1.9: Poor (x)

The results of the above evaluations are summarized in Table 2.

[0032]

[Table 2]

As shown in the above evaluation results, the product of the present invention had good results in stability, emulsification property and usability. However, in the comparative examples, those satisfying all of them cannot be obtained, and further, those having a small amount of the component (A) and those using the solid type nonionic surfactant have poor emulsification dispersibility and are used. The sex could not be evaluated.

[0034]

EFFECTS OF THE INVENTION The hygiene composition for the anus and genital region of the present invention has good stability and good emulsification property when added to water, and has a feeling of use, a rough skin improving effect, and a preventive effect on diseases around the anus. It is an excellent one.

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-4-182423 (JP, A) JP-A-4-154717 (JP, A) JP-A-2-152920 (JP, A) (58) Field (Int.Cl. ⁷ , DB name) A61K ^7/ 00-7/50

Claims (3)

(57) [Claims] 1. The following components (A) and (B) (A) polyoxyethylene sorbitan fatty acid ester,
Polyoxyethylene glycerin fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene castor oil, polyoxyethylene sorbit fatty acid ester, polyoxyethylene / polyoxypropylene alkyl ether, polyglycerin fatty acid ester, polyethylene glycol fatty acid ester, polyoxyethylene alkyl One or two or more nonionic surfactants selected from phenyl ethers, polyoxyalkylene-modified silicones, and alkylpolyoxyalkylene-modified silicones, which are liquid or pasty at room temperature. % (B) Castor oil, olive oil, avocado oil, palm oil,
Safflower oil, cacao oil, liquid paraffin, squalane, isopropyl myristate, octyldodecyl myristate, cetyl 2-ethylhexanoate, isocetyl stearate, isocetyl myristate, palmitic San'i
An isopropyl, selected liquid lanolin, acetic acid lanolin
A sanitary composition containing 30 to 97% by weight of a liquid oil containing one or more kinds and a silicone oil, and 0.1 to 70% by weight of the component (B) being silicone oil. A sanitary composition for the anus and genital area, which is used by adding it to washing water or warm water. 2. The hygienic composition for the anus and genital area according to claim 1, which contains less than 30% by weight of ethanol. 3. A sanitary cleansing agent for the anus and genital area, which comprises 0.001 to 20% by weight of the sanitary composition according to claim 1 or 2 in water or warm water. .