JP2007008882A - Cleansing agent - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cleansing agent free from dripping, being easy to massage the skin and excellent in cleansing power and refreshing feeling after washing off. <P>SOLUTION: The cleansing agent comprises a polybutene and/or a hydrogenated polybutene and optionally further a liquid oil and a nonionic surfactant. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a cleansing material that does not sag, is easy to massage, has excellent cleansing power, and has a refreshing feeling after being washed away.

  In general, cleansing materials intended to remove oily stains and makeup cosmetics include creams, gels, liquids (aqueous, oily), and the like, and are used according to their respective usability. Oily liquids, that is, oily cleansing agents, are based on liquid oils, and are known to be excellent in familiarity with sebum-derived dirt and makeup cosmetics and have a high cleansing effect.

Oil-type cleansing materials have the property of low viscosity, so that they have the disadvantage that they are difficult to massage when dripping from a hand when taken out from a container and blending with makeup cosmetics. For this reason, a cleansing material for thickening liquid oil using a specific gelling agent has been proposed. (See Patent Documents 1 to 4)
However, these materials have a sticky feeling when washed off, and further improvements have been desired.

JP 2002-370930 A JP 2003-267835 A JP 2005-2047 A JP 2003-252726 A

  Accordingly, an object of the present invention is to provide a cleansing material that does not sag, is easy to massage, has excellent cleansing power, and has a refreshing feeling after being washed away.

  As a result of intensive studies to solve the above problems, the present inventors have found that the above problems can be solved by developing a cleansing material containing a specific oil component, and have completed the present invention. It was.

  That is, Claim 1 of the present invention is a cleansing material characterized by containing polybutene and / or hydrogenated polybutene.

  Moreover, Claim 2 of the present invention is the cleansing material according to Claim 1, further comprising a liquid oil and a nonionic surfactant.

  Moreover, Claim 3 of the present invention is the cleansing charge according to Claim 1 or 2, which is oily.

  The present invention provides a cleansing material that does not sag, is easy to massage, has excellent cleansing power, and has a refreshing feeling after being washed away.

  Hereinafter, the configuration of the present invention will be described in detail.

  The polybutene and / or hydrogenated polybutene in the present invention is obtained by polymerizing isobutene and normal butene, and is preferably further purified by distillation. The molecular weight is preferably in the range of 500 to 2700. If the molecular weight is less than 500, it may be insufficient in terms of thickening the cleansing material, and if it exceeds 2700, it may cause stickiness after washing. . The blending amount of the polybutene and / or hydrogenated polybutene in the present invention is preferably 5 to 30% by mass (hereinafter simply referred to as “%”) in the total amount of the cleansing material. If it is less than 5%, it may be insufficient in terms of thickening the cleansing material, and if it exceeds 30%, a sticky feeling may be generated after washing.

  The liquid oil in the present invention can be arbitrarily selected and blended as long as it is generally used in cosmetics and is liquid at room temperature. Particularly preferred are hydrocarbon oils such as liquid paraffin and squalane. , Glyceryl 2-ethylhexanoate, glyceryl tri (capryl / capric acid), castor oil, jojoba oil, sunflower oil, olive oil, etc., octyl palmitate, cetyl octanoate, octyldodecyl myristate, isocetyl myristate, isononanoic acid Examples include ester oils such as isononyl, silicone oils such as decamethylcyclopentasiloxane, dimethylpolysiloxane, and methylphenylpolysiloxane, which can be used alone or in combination of two or more.

  As a compounding quantity of the liquid oil in this invention, 60 to 95% is preferable, Most preferably, it is 70 to 90%. When the blending amount is less than 60%, a sufficient cleansing effect may not be obtained. When the blending amount exceeds 95%, it is difficult to wash out and a sticky feeling may be caused.

  The nonionic surfactant used in the present invention is not particularly limited as long as it is generally used in cosmetics. However, a nonionic surfactant that is liquid or pasty at room temperature and has an HLB of 5 to 15 is selected. In this case, it is preferable because of excellent usability and stability.

The HLB of the nonionic surfactant can be calculated by the Kawakami equation shown below.
(formula)
HLB = 7 + 11.7log (Mw / Mo)
Mw: molecular weight of hydrophilic group of surfactant Mo; molecular weight of hydrophobic group of surfactant

Nonionic surfactants satisfying the above conditions include, for example, polyoxyethylene (7-10) oleyl ether, polyoxyethylene tetraoleate (6-40) sorbit, polyoxyethylene (20) glyceryl triisostearate, monococonut oil Fatty acid polyoxyethylene (7) glyceryl, polyoxyethylene (5-15) glyceryl monooleate, polyoxyethylene (5-15) glyceryl monostearate, polyoxyethylene monostearate (6) sorbitan, polyisoisostearate Oxyethylene (20) sorbitan, polyoxyethylene (6) sorbitan monooleate, polyoxyethylene (20) sorbitan trioleate, diglyceryl dioleate, tetraglyceryl monostearate, monoolein Tetraglyceryl, hexaglyceryl monomyristate, hexaglyceryl monostearate, hexaglyceryl monooleate, decaglyceryl monomyristate, decaglyceryl monostearate, decaglyceryl monooleate, decaglyceryl diisostearate, decaglyceryl tristearate, etc. 1 type can be used alone or two or more types can be used in combination.

  As a compounding quantity of the nonionic surfactant in this invention, 3 to 30% is preferable, Most preferably, it is 5 to 20%. If the blending amount is less than 3%, it may be difficult to wash off, and stickiness may be caused. If it exceeds 30%, stickiness may be caused by the surfactant, which is not preferable.

  In the present invention, in addition to the above essential components, surfactants other than the essential components, oil agents other than the essential components, polyhydric alcohols, fragrances, pigments, preservatives, bactericides, oxidation, as long as the effects of the invention are not impaired Ingredients usually used in cosmetics such as an inhibitor, an ultraviolet absorber, an oily gelling agent, an anti-inflammatory agent, and a plant extract can be appropriately blended.

  Hereinafter, the present invention will be described with reference to examples and comparative examples. The present invention is not limited to these.

  The cleansing power and sensory test methods shown in the Examples and Comparative Examples are as follows. In addition, the compounding quantity of the composition shown in the following table | surfaces is each shown by%.

<Cleansing power and sensory test evaluation method>
Twenty women in their 20s and 30s use commercial makeup cosmetics (foundation and lipstick), and after 30 minutes, 2 g of the samples of Examples and Comparative Examples are used for 1 minute on the face with a constant force and speed. Was massaged and then washed away with water. At that time, there was no rating of dripping, ease of massage, cleansing power, and refreshing feeling were evaluated in five levels, and the average score was determined according to the following criteria.

5-point rating 5 points: very good 4 points: good 3 points: normal 2 points: somewhat bad 1 point: bad

Judgment ◎: Average score is 4.5 or more ○: Average score is 3.5 or more and less than 4.5 △: Average score is 2.5 or more and less than 3.5 ×: Average score is less than 2.5

Examples 1-3, Comparative Examples 1-3
An oily cleansing material having the formulation shown in Table 1 was prepared by a conventional method, and the above tests were performed. The results are also shown in Table 1.

  As is clear from Table 1, all of the oily cleansing materials of Examples using the components of the present invention had excellent performance. On the other hand, the comparative example lacking the essential components was inferior in any aspect of no sagging, ease of massage, cleansing power, and refreshing feeling, and the object of the present invention could not be achieved.

Example 3
Hydrogenated polybutene 20.0%
Tri (capryl / capric acid) glyceryl 20.0
Tetraoleic acid polyoxyethylene (30) sorbit 10.0
Cyclic silicone (n = 5) 2.0
Methylphenylpolysiloxane 3.0
Isononyl isononanoate 15.0
Chimpi extract 0.3
(Product name: Chinpi extract SQ, manufactured by Maruzen Pharmaceutical Co., Ltd.)
Glycerin 0.2
Panax ginseng extract 0.15
(Product name: Carrot Extract SQ, manufactured by Maruzen Pharmaceutical Co., Ltd.)
Orange oil 0.05
Carrot oil 0.05
Lavender oil 0.05
Fragrance 0.1
Purified water 0.8
Squalane rest

  When an oily cleansing composition having the above composition was prepared and evaluated, it had excellent performance in terms of no sagging, ease of massage, cleansing power, and refreshing feeling.

  In addition, the composition of the fragrance | flavor used in said Example is shown in Table 2.

Claims (3)

A cleansing material comprising polybutene and / or hydrogenated polybutene. The cleansing composition according to claim 1, further comprising a liquid oil and a nonionic surfactant. The cleansing material according to claim 1 or 2, wherein the cleansing material is oily.