JPH0699275B2 - Non-water cleansing fee - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a novel non-aqueous cleansing agent based on liquid oil, which has a transparent or translucent appearance to improve cleansing effect and skin safety. Excellent and after use
It is to provide a non-water cleansing agent that can be easily emulsified and dispersed in water and rinsed off.

[Prior Art] Conventionally, cleansing agents for removing makeup include creamy, milky, and liquid types, and there are emulsion type, oil type, and water type types by type. , Are used according to each usability.

In general, it is known that an aqueous cleansing lotion has features such that an anionic surfactant is mixed to enhance a cleansing effect and facilitate rinsing after use. It is known that an oil-based cleansing oil containing no surfactant has excellent compatibility with oily stains and has a high cleansing effect.

Further, in recent years, a gel-like transparent cleansing composition containing a hydrophilic sucrose ester, a polyhydric alcohol, an anionic surfactant, etc. has been proposed (JP-A-60-115509).

[Problems to be Solved by the Invention] However, there is no oil-based type that can be easily rinsed off by emulsifying and dispersing a cleansing agent after use, and there is no conventional cleansing lotion (aqueous type). ) Is easily washed off with water and is refreshing after use, but on the other hand, it has a drawback in cleansing effect (makeup remover). Further, the cleansing oil (oil-based type) has an excellent cleansing effect, but has a problem in terms of rinsing such as stickiness after use.

In addition, usual aqueous cleansing agents and gel-like cleansing agents are often blended in relatively large amounts, with the total content of nonionic surfactants and anionic surfactants being 20 to 30%, and in particular, anionic surfactants. Although the formulation of the agent enhances the cleansing effect, it has a problem in terms of skin safety.

Therefore, without being restricted to the conventional type, it is a transparent or semi-transparent non-water cleansing agent by blending a nonionic surfactant and a liquid oil, which has a good cleansing effect and is an oily gelling agent. Viscosity can be adjusted by blending, and in particular, in terms of usability, there has been awaited the development of a new type of cleansing agent having a feature that it can be easily emulsified and dispersed in water after removing makeup and rinsed off.

[Means for Solving Problems] In view of the above points, the present inventors have conducted intensive studies to obtain a cleansing agent that is easy to use, particularly easy to rinse, and has good skin safety. It has been found that the above-mentioned drawbacks of the conventional cleansing agents can be eliminated by blending the nonionic surfactant of (3) above, and the present invention has been completed.

That is, the present invention is a transparent or translucent non-water cleansing agent essentially containing a nonionic surfactant and liquid oil, which is a liquid or paste at room temperature and has an HLB value of 5 to 15. It is characterized by containing an ionic surfactant.

Within this HLB value range, it has good temperature stability, cleansing effect, and emulsifying dispersibility when blended in liquid oil. That is, if the HLB value is 5 or more, the emulsifying dispersibility of the cleansing agent after use is good, while the HLB value is 1
When it is 5 or less, the compatibility with the liquid oil is good and the temperature stability is also good.

Further, the carbon chain of the fatty acid portion or the alkyl portion constituting the nonionic surfactant has a branch, and /
Alternatively, those having an unsaturated bond are particularly preferable.

The blending amount of the nonionic surfactant in the present invention is preferably 1 to 15% by weight.

As the nonionic surfactant, for example, POE sorbitan fatty acid ester, POE glycerin fatty acid ester,
POE castor oil, POE hydrogenated castor oil, POE sorbit fatty acid ester, polyglycerin fatty acid ester, polyethylene glycol fatty acid ester and other fatty acid moieties, POE alkyl ether, POE-POP
Examples thereof include those having an alkyl portion such as alkyl ether, and those which are safe for the human body can be used. Any of these may be used alone or in combination of two or more.

The oil agent used in the present invention is commonly used in the art. It may be any liquid oil at room temperature, for example, castor oil, olive oil, avocado oil, palm oil, safflower oil, sunflower oil, cocoa oil and other oils and fats, liquid paraffin, hydrocarbons such as squalane, isopropyl myristate, Ester oils such as isopropyl palmitate, octyldodecyl myristate, cetyl 2-ethylhexanoate, and isocetyl stearate, which are safe for the human body, can be used.

The present invention is a non-water cleansing agent characterized by essentially containing the above-mentioned components, and an oily gelling agent can be added as necessary for adjusting the viscosity. As the oily gelling agent that can be used, for example, organic bentonite, hydrophobized silicic acid, silicic acid anhydride, starch fatty acid ester and the like can be blended, and it can be applied as a transparent to translucent liquid to gel-like cleansing agent. It will be possible.

In the present invention, in addition to the above components, fragrances, pigments such as dyes, preservatives, bactericides, antioxidants, pearl agents, various cosmetic agents and the like can be appropriately added.

EXAMPLES Next, the present invention will be further described with reference to examples. These do not limit the present invention in any way.

Example [1] Liquid transparent cleansing (formulation) (% by weight) (1) Safflower oil 46.0 (2) Isocetyl myristate 10.0 (3) Isopropyl palmitate 25.0 (4) Liquid paraffin 15.0 (5) Polyoxyethylene (6) Mol) Monoisostearate (HLB = 8.5) 4.0 (6) Perfume Suitable amount (Production method) A (1) to (4) are uniformly mixed.

Add (5) and (6) to BA and mix evenly.

Fill the C container.

Example [2] Liquid cleansing (formulation) (% by weight) (1) Olive oil 50.0 (2) Jojoba oil 10.0 (3) Isopropyl myristate 30.0 (4) Liquid paraffin 7.0 (5) Polyoxyethylene (10 mol) oleyl ether (HLB = 14.0) 3.0 (6) Perfume proper amount (manufacturing method) According to Example [1].

The liquid cleansing products obtained as described above (Examples [1] and [2]) have a transparent appearance, have good temperature stability, and have good emulsification dispersibility with water when washed off. The cleansing agent was preferable because it had no feeling of remaining amount on the skin and had a refreshing feeling after use.

Example [3] Gel-like cleansing (formulation) (% by weight) (1) Sunflower oil 25.0 (2) Octyldodecyl myristate 25.0 (3) Isopropyl myristate 30.0 (4) Squalane 10.0 (5) Polyoxyethylene (6) Mol) sorbitan oleate (HLB = 10.0) 3.0 (6) polyoxyethylene (20 mol) castor oil (HLB = 10.5) 2.0 (7) dextrin fatty acid ester 5.0 (8) perfume proper amount (process) A (1)-( 4) is heated and (7) is added and mixed and dissolved.

Add (5), (6) and (8) to BA and mix evenly.

C Cool and fill the container.

The gel-like cleansing agent obtained as described above had a transparent and beautiful appearance, good cleansing effect, good emulsification and dispersibility with water, and good temperature stability for a long period of time.

Next, for comparison and examination with Example [1], Comparative Example [1]
~ Shows the prescription of [3].

The surfactant used in the comparative example is the same as in Example [1] of the present invention.
As a representative example, one which can be uniformly dissolved in the basic base of (3) and is often used in the conventional emulsifying dispersant was selected and used.

[Comparative Example] Comparative Example (wt%) Treatment [1] [2] [3] (1) Safflower oil 46.0 46.0 46.0 (2) Isocetyl myristate 10.0 10.0 10.0 (3) Isopropyl myristate 25.0 25.0 25.0
(4) Liquid paraffin 15.0 15.0 15.0 (5) Polyoxyethylene (8 mol) Monostearate (HLB = 8.0) (solid type) 4.0 --- (6) Sorbitan sesquioleate (HLB = 3.7) -4.0- (7) ) Dipolyoxyethylene (4 mol) Alkyl ether phosphoric acid (HLB = 9.0)-4.
(8) Perfume proper amount proper amount proper amount (manufacturing method) A (1) to (4) are heated and mixed uniformly.

Add (5) or (6) or (7) to BA, and mix uniformly.

After C cooling, each container is filled.

Here, Comparative Example [1] is one of the formulations of Example [1].
POE (6 mol) monooleate (HLB = 8.5) POE
A fatty acid which is a monostearate (HLB = 8.0) and which is solid at room temperature and which is a constituent fatty acid is a straight chain saturated fatty acid. Comparative Example [2], which is similarly substituted with sorbitan sesquioleate (HLB = 3.7) and is liquid at room temperature, is outside the HLB value range of the nonionic surfactant of the present invention. Further, in Comparative Example [3], similarly, anionic surfactant diPOE alkyl ether phosphoric acid was substituted.

Further, in order to confirm the feeling of use, temperature stability, and skin safety of the cleansing agent of the present invention, each test is carried out on Examples [1] and [2] and Comparative Examples [1] to [3]. It was

i) Usability test For each evaluation item by 15 panelists specialized in sensory test,
An absolute evaluation of 7 steps was performed.

The evaluation was performed using a face that had been previously made up.

(Average value of scores) 4.6 to 6.0 Very good ◎ 3.1 to 4.5 Good ○ 1.6 to 3.0 Slightly bad △ 0 to 1.5 Bad × ii) Temperature stability test The temperature stability test was conducted in the same manner as in Example [1. ], [2], and Comparative Examples [1] to [3], and the condition after 2 weeks under each storage condition of 5 ° C. and 40 ° C. was observed.

iii) Skin Safety Test For the skin safety test, a patch test was performed on the forearm flexor lateral side of 34 healthy men and women using Examples [1], [2] and Comparative Examples [1] to [3] as undiluted solutions. A 24-hour patch test was performed using an adhesive bandage (made by Torii Pharmaceutical Co., Ltd.). The observation was performed 4 hours after the adhesive bandage was peeled off, and a person who recognized a slight erythema or higher reaction was regarded as a positive person.

The results of each of the above tests are shown in Table 1.

As is clear from the results in Table 1, the cleansing agents of Examples [1] and [2] of the present invention are comparative examples [1] to
Compared with [3], it was more excellent in overall judgment from usability, temperature stability, and skin safety.

[Effect of the Invention] As described in detail above, the present invention provides a non-aqueous cleansing agent in which a nonionic surfactant in a specific range is mixed with a liquid oil,
Appearance is transparent or translucent, has an excellent cleansing effect, has less irritation to the skin, and despite being an oil base which is the object of the present invention, it is easily emulsified and dispersed by water after use and rinsed off. It was found to have an excellent feeling of use.

Claims (2)

[Claims] 1. A liquid or paste at room temperature and HLB
A non-water cleansing agent containing a nonionic surfactant having a value of 5 to 15 and a liquid oil as essential components and being transparent or translucent. 2. The non-water cleansing agent according to claim 1, wherein the carbon chain of the fatty acid portion or the alkyl portion of the nonionic surfactant has a branched and / or unsaturated bond.