日本化粧品技術者会会誌
Online ISSN : 1884-4138
ISSN-L : 0387-5253
最新号
選択された号の論文の8件中1~8を表示しています
  • 西岡 清
    1978 年 12 巻 2 号 p. 5-9
    発行日: 1979/01/25
    公開日: 2010/08/06
    ジャーナル フリー
  • 小松 一男, 石渡 勝己, 松本 勲
    1978 年 12 巻 2 号 p. 10-15
    発行日: 1979/01/25
    公開日: 2010/08/06
    ジャーナル フリー
    Rapid analysis of cosmetic clay minerals such as Talc, Kaolin etc. was studied by fluorescent X-ray spectrometry. It was said to effect much the differences of sample's composition and partical size in this study. In order to reduce these effects, a fusing technique was introduced as a pretreatment.
    Several standard mixtures were made similar to the composition of Talc and Kaolin, the calibration curves of every composition were determined. They were found linear. Using these curves, practical samples ware analyzed. The analytical results of the present method coincided well with those of chemical wet analysis.
    The present method was found to be of great advantage in time and procedure to the chemical wet analysis.
  • 山口 道広, 高橋 元次, 春沢 文則, 福島 正二
    1978 年 12 巻 2 号 p. 16-22
    発行日: 1979/01/25
    公開日: 2010/08/06
    ジャーナル フリー
    It is known that oil-in-water creams or ointments used in cosmetic or pharmaceutical products increased in consistency and stability on adding of cetyl alcohol. This paper reports the effects of the polymorphism of the alcohol and the cooling procedures after emulsification on the stability of the cream.
    Long chain alcohols are known to exist in three crystal forms, designated as α, β, and γ. The α-form is stable at higher temperatures and transforms into the β- or γ-form at lower temperatures. The creams were stable in the temperature range in which the alcohol crystallized into the α-form, whereas they were broken within a few days in the temperature range in which the alcohol crystallized into the β-or γ-form. The creams that were cooled to 30°C at which the alcohol crystallized into β-or γ-form in a bath containing ice water (fast cooling procedure) were broken within a few days, on the other hand, those cooled to 30°C in air (slow cooling procdure) were stable for a longer period. Liquid clystals found to be formed in this system, which also contributed to stabilizing the creams.
  • 谷本 文城, 梨本 道子
    1978 年 12 巻 2 号 p. 23-28
    発行日: 1979/01/25
    公開日: 2010/08/06
    ジャーナル フリー
    It is necessary in the evaluation of cosmetic products to get the user's tactile impression directly and objectively. The measurement of the friction on human skin surfaces, which may be one of methods to get the user's tactile impression directtly and obiectively, is important in the objective evaluation of cosmetic products.
    Frictional measurements on the human skin surfaces were carried out on 12 subjects before and after the application of an emollient cream. Seasonal change, individual differences and the use of a toilet soap were found to affect the fricttion on the human skin surfaces. The frictional characteristic of the human skin surfaces after the application of an emollient cream was found to relate with the sensory attribute and also with the composition of oil phase in formulary of cream.
    It was interesting to find that the frictional characteristic of the skin after an application of an emollient cream in the early winter corresponded to that of the bare skin in summer, and also that the difference of preference for the emollient creams related to the tendency of individual differrences of the friction values of the bare skin.
  • 釈 政雄, 黒田 秀夫, 野沢 進, 森田 一二
    1978 年 12 巻 2 号 p. 29-35
    発行日: 1979/01/25
    公開日: 2010/08/06
    ジャーナル フリー
    Human skin surface is covered with surface film. This film is said to have some protective functions and is assumed to be one of the important factors affecting skin surface condition. Since sebum is the main component of this film, in order to investigate the relationship between physiological condition of skin surface and skin type, we studied the variations in the amount and composition of sebum with respect to the age as well as the diurnal variation in the sebum excretion rate.
    Sebum was collected by the method of Pochi et al and its components were analyzed with gas-liquid chromatography. The amount of sebum was calculated by the formula: Y=0.114x+2.03 where Y is the amount of squalene, X is that of total lipid. The rhythms of sebum excretion rate were analyzed by the least squares method and cosinor method.
    The results obtained were as follows. Among the women between 18 and 40 years old the amount of sebum excretion from the forehead was nearly constant. For women over 40 years old the amount of sebum from trom the forehead began to decrease with the age. The total amounts of sebum varied widely in women with the average value of 71μg/cm. The composition of sebum also varied widely in women, especially in the composition of triglycerides. The average composition of sebum varied insignificantly with respect to the age and the amount of excretion sebum. The amount of replacement sebum exhibited diurnal variation. The sebum excretion rate from the forehead exhibited a circadian rhythm in both men men and women. The sebum excretion rate from the chest of men also exhibited a circadiadian rhythm. The excretion rates of sebum components squalene, wax esters and triglycerides, were synchronous. In the majority of subjects, the maximum sebum excretion was observed in the early morning. Although the wave form of sebum excretion rate was found to be composed of multiple rhythmic components of different frequencies (infradian and ultradian rhythms), this circadian rhythm was the main component of the sebum excretion rate rhythms.
    The results show that both the amount of replacement sebum and the sebum excretion rate vary constantly with time. From this study, it is clear that the amount of sebum present on the skin varies significantly with the excretion rate rhythms and that this relationship must taken into consideration when investigating the condition of skin surface or characterizing the skin type.
  • VIラウリル硫酸ナトリウムの皮膚に与える影響
    河合 通雄, 岡本 暉公彦
    1978 年 12 巻 2 号 p. 36-43
    発行日: 1979/01/25
    公開日: 2010/08/06
    ジャーナル フリー
    The influence of the Sodium Lauryl Sulfate (SLS) upon the skin has been investigated. The occuring roughness and inflammatory reaction depend on the SLS concentrations and contact time,
    In vivo experiments; the inner surface of normal human forearm was treated with 0, 0.5 and 5% of SLS solutions at 37°C for 10 minutes a day. This test was carried out daily for two successive days. Roughness (dryness and scaling) and inflammatory reaction (erythema, edema and so on) of the skin were odserved at 24 hours after original treatment with 5% of SLS solution but not observed with 0 and 0.5% of SLS solutions. The amounts of solubilized protein and the number of removed corneocytes from the skin were increased remarkably by the 5% of SLS solution.
    In vitro experiments; keratin powder isolated from human heel was incubated in 0, 0.05, 0.5 and 5% of SLS solution at 37°C for 20 and 120 minutes. The amounts of solubilized protein from keratin powder, adsorbed SLS on keratin powder and SH groups of keratin powder, were increased remarkably by treatments of 5% SLS solution for 120 minutes. The hygroscopicity of keratin powder was decreased most by the treatment of 5% of SLS solution for 20 minutes.
  • 谷本 文城, 小柳 敏栄
    1978 年 12 巻 2 号 p. 55-59
    発行日: 1979/01/25
    公開日: 2010/08/06
    ジャーナル フリー
    Presently sensory evaluation is interpreted extensively, and used in many fields. With improvement of computer, many theories are also developed, and especially multivariate analysis is employed widely.
    We attempted to study from three viewpoints, make-up consciousness of consumer, usual cosmetics of them and preference for make-up characteristics of them, by means of mail survey for 500 persons who are selected by random sampling.
    We examined the correlation of three groups of data obtained from above questions through the application of the quantification theory (III).
    Results obtained are as follows:
    Three major factors were extracted, and consumers were classified into six groups.
  • 加藤 精二, 佐野 功, 北村 義一
    1978 年 12 巻 2 号 p. 60-62
    発行日: 1979/01/25
    公開日: 2010/08/06
    ジャーナル フリー
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