Drug – bio-affecting and body treating compositions – Live skin colorant containing
Patent
1996-08-09
1997-09-30
Mosley, Terressa
Drug, bio-affecting and body treating compositions
Live skin colorant containing
424 61, 424 64, 424 81, 514772, 514844, 514845, A61K 7021
Patent
active
056723393
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a composition for rouge for lip and, in particular, to an improvement in the secondary adhesion thereof.
The rouge for lip is one of very popular cosmetics. Due to its characteristic of being applied to lip, it should be bland and harmless to the lip while yielding no unpleasant taste or smell, for example.
Recently, there has been a strong demand for improving so-called secondary adhesion in which the rouge applied to the lip is transferred thereafter to portions of cups or the like which come into contact with the lip.
Accordingly, in recent years, there has been reported a "cosmetic composition having an improved anti-transfer characteristic" disclosed in Japanese Unexamined Patent Publication Hei No. 6-199630. This cosmetic composition is characterized in that it contains a volatile solvent, a silicone resin, wax, powder, and an oil content. The secondary adhesion is supposed to be improved when such a cosmetic composition is used.
However, the above-mentioned cosmetic composition is still problematic about the spreadability at the time of its application and the smooth feel of use. Also, the problem of its secondary adhesion has not completely been eliminated and is yet to be improved.
Also, the rouge for lip should be smoothly attached to the lip, and this smooth feel of use should be maintained. Since the improvement of the above-mentioned secondary adhesion is contrary to the maintenance of the smooth feel of use, it has been difficult to develop a composition for rouge for lip having both of these characteristics.
In view of the problems of the prior art mentioned above, the object of the present invention is to provide a composition for rouge for lip in which the secondary adhesion is further improved together with smooth feel of use.
As the result of diligent studies conducted by the inventors in order to attain the above-mentioned object, it has been found that, a composition for rouge for lip in which both smooth feel of use and secondary adhesion are improved can be obtained when the relationship between a water-repellent polymer and a powder, the relationship between the polymer and its solvent, and the relationship between the polymer and a wax are taken into account, thereby accomplishing the present invention.
Namely, the first aspect of the composition for rouge for lip in accordance with the present invention contains a volatile oil content, a water-repellent polymer soluble to the volatile oil content, a powder, and a nonvolatile oil content having a compatibility with the volatile oil content, wherein the powder contained in 1 g of the composition has a total surface area of 1 to 25 m.sup.2.
Preferably, the above-mentioned composition contains 10 to 60% by weight of the volatile oil content, 5 to 35% by weight of the water-repellent polymer, 1 to 25% by weight of the powder, and 5 to 40% by weight of the nonvolatile oil content.
Also, preferably, the above-mentioned composition contains 10 to 50% by weight of the volatile oil content, 10 to 35% by weight of the water-repellent polymer, 1 to 25% by weight of the powder, and 10 to 40% by weight of the nonvolatile oil content.
The second aspect of the composition for rouge for lip in accordance with the present invention is characterized in that, in the above-mentioned composition for rouge for lip, the powder is capable of being coated with the water-repellent polymer in a state where the volatile oil content does not exist.
In this composition, at least a part of the powder is preferably silica.
Also, preferably, this composition contains 20 to 60% by weight of the volatile oil content, 5 to 20% by weight of the water-repellent polymer, 1 to 10% by weight of silica, and 5 to 30% by weight of the nonvolatile oil content.
The third aspect of the composition for rouge for lip in accordance with the present invention is characterized in that at least a part of the powder is titanated mica.
Also, preferably, this composition contains 10 to 50% by weight of the volatile oil content, 10 to 35% by weight of the
Hirayama Junko
Minami Takashi
Nasu Akio
Soyama Yoshikazu
Takada Hirotaka
Mosley Terressa
Shiseido Co. Ltd.
Snider Ronald R.
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