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Volume 31 (1997)
- Issue 4 Pages 373-
- Issue 3 Pages 245-
- Issue 2 Pages 117-
- Issue 1 Pages 3-
Volume 31, Issue 2
Displaying 1-11 of 11 articles from this issue
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Norio Sakaki1997 Volume 31 Issue 2 Pages 117-123
Published: June 20, 1997
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSI describe the following things in this paper;
1. Recent patents in Japan related to formulas and containers of mascara and eyeliner.
2. Interaction of resin and water-soluble thickeners, pigments.
3. Preservative and germicide permitted for use mascara and eyeliner in Japan.
4. Use test of mascara and its brush.View full abstractDownload PDF (944K) -
Kazuyoshi Morita1997 Volume 31 Issue 2 Pages 124-137
Published: June 20, 1997
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSRecently, gentleness to the skin is expected for cosmetics products. Then, sufficient consideration on microbiology should be made during the development of new cosmetic formula.
Although, preservatives are incorporated in cosmetics for ensuring the quality of products, it is desirable to decrease the amount of them as small as possible.
Here we reconsidered the constitution of cosmetics emulsion formula.
Accordingly, it was suggested to develop the emulsion type cosmetics which contain small quantity of preservatives by the following ways.
Namely, (1) selection of non-assimilative ingredients (2) the utilization of fatty group compounds and essential oils which have antimicrobial activity, and the development of new functional materials, and (3) the application of the partition theory of preservative in oil-aqueous phase.View full abstractDownload PDF (1825K) -
Shuji Kawai, Hajime Mori1997 Volume 31 Issue 2 Pages 138-148
Published: June 20, 1997
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSCosmetics bring us cleanliness and beauty. Therefore, consumers have good image to these products and can not imagine microbial contamination. However, microbial control of cosmetics is rather difficult than that of medical supplies and foods because of its special properties. There are three requisites for prevention of microbial contamination in manufacturing products, such as prescription of preservatives, facilities of production and control during manufacture. In this paper, we want to introduce important points in the aspects of production (facilities of production, environment of production, control of raw materials, washing and sterilization of facilities, microbial inspection of products and so on).View full abstractDownload PDF (1645K) -
Masashi Nanjo, Tadao Nakashima1997 Volume 31 Issue 2 Pages 149-157
Published: June 20, 1997
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSAs a first step in an investigation into the application of Shirasu Porous Glass (SPG) membrane emulsification method, a new emulsification technique has been developed at the Miyazaki Prefectural Industrial Research Institute. In the production of cosmetic products, we studied the influence of surfactants, etc., on the emulsification process. SPG is a porous glass with a uniform pore size, and a monodispersed O/W emulsion was obtained with the application of oil under pressure. The particle size of the grains of the emulsion increased to three times as large as the pore size of SPG.
Furthermore, with SPG membrane emulsification method, good emulsification is possible with only an extremely small amount of surfactant, and we confirmed that emulsification could be done with excellent stability and with absolutely no unification over a period of time.
Compared with emulsion made by normal homogenizer, small angle X-ray diffraction measurements and the like suggested that the surfactants were orientated more uniformly on the interface of oil and water.View full abstractDownload PDF (3256K) -
Kazuo Ogino, Masakatsu Ohta, Junichi Matsui1997 Volume 31 Issue 2 Pages 158-166
Published: June 20, 1997
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSA clear ruby-colored gold hydrosol was obtained by a reduction of chloroauric acid solution with sodium citrate. In the presence of hydrophilic nonionic surfactants, such as polyoxyethylene hydrogenated castor oil (60 E. O.) (HC 60) or polyoxyethylene sorbitan monooleate (20 E. O.) (PO 20), the hydrosol showed high stability against the addition of electrolytes as well as freezing. This remarkable stability of the hydrosol can be ascribed to both the effect of the electrical repultion of negatively charged particles and the steric barriers of surfactants. A lotion and a cream colored with gold hydrosol containing HC 60 exhibited enough stability to withstand color change after three years of exposure to sunlight.
Subsequently, we succeeded in producing a reddish-purple silk powder by vigorously stirring a mixture of gold hydrosol and a silk fibroin solution. An electron microscopic observation indicated that ultrafine particles of gold were taken in and dispersed uniformly throughout the silk fibroin. The color of the silk powder showed high stability against heat and light, and did not bleed even in water nor various oils.View full abstractDownload PDF (2946K) -
Minoru Hosokawa, Mihoko Sato, Masanao Sadai1997 Volume 31 Issue 2 Pages 167-175
Published: June 20, 1997
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSThough polyols were widely used in hair-care products, these effects on hair hardly investigated. We studied the effects of polyols on hair, using 3-methyl-1, 3-butanediol (isoprene glycol; IG). It was shown that IG decreased the amount of breaking off of cuticle and that the swelling of hair was suppressed by IG.
Also, we studied the effects of polyols on hair flexibility by means of balanced fiber methods. The treatment with polyols increased the flexibility of hair. Then the water contents of hair decreased by polyol treatment. We examined the effects of polyols on the structure of hair protein, using DSC. The denaturation temperature of α-helix were lowered by polyol treatment or by the increase of water content of hair. These results suggested that polyols acted the same manner with water in the hair.View full abstractDownload PDF (1233K) -
Masaru Kenjo, Sayuri Ohkura, Hitoshi Momota, Shuji Negishi1997 Volume 31 Issue 2 Pages 176-182
Published: June 20, 1997
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSWe developed the AL-ATR (aluminum-attenuated total reflectance) method to analyze each sebum component quantitatively with simplicity and rapidity. This method can determine major components of sebum, i.e., triglycerides, free fatty acids, squalene, wax esters, which were collected o the aluminum foil, using spectra obtained from ATR-FTIR (Fourier transform infrared) and, by the application of the PLS (partial least squares) method. We examined AL-ATR method and obtained the following results. (1) The calibration curves of ATR-FTIR method are linear with a high reproducibility. (2) The data obtained from AL-ATR method is well correlated with GC method. (3) The composition of the sample collected on AL is almost the same as that of the sample collected on the filter paper.
It takes only five minutes to complete the whole procedure, from collecting sebum samples to analyzing the sebum composition using AL-ATR method. Consequently, AL-ATR method is a simple, rapid, quantitative, and reliable method to analyze the sebum compositions.View full abstractDownload PDF (895K) -
Yutaka Ikeyama, Akie Tamura1997 Volume 31 Issue 2 Pages 183-189
Published: June 20, 1997
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSDEMATEL Method is one of the statistical procedures characterized by hierarchical presentation of the target items, and applied to examination of problems in organization and designing a goods. With the aim of structuring of cosmetics quality, we represented individual structure of experimental knowledges about disadvantage of skin, and analyzed the importance of descriptive terms with lipcolor. We obtained the results that will contribute, in the former, to promotion of communication among R & D staffs, in the latter, to classification of the customers' needs, then usefulness of DEMATEL method was confirmed in R & D process of cosmetics.View full abstractDownload PDF (910K) -
Masatoshi Itoh, Masashi Fujii1997 Volume 31 Issue 2 Pages 201-208
Published: June 20, 1997
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSThe problem of epicutaneous sensory irritation in relation to safety of external preparations requires attention because cosmetic materials such as phenoxyethanol and parabens induce epicutaneous sensory irritation. In order to investigate the cause of epicutaneous sensory imitative materials, chemical mediators such as histamine, prostaglandin-E1, -E2 and F2α and serotonin (5-hydroxytryptamine) and bradykinin with concentration of 0.003mol were applied on human cheek sites for only 5 minutes, and then washed off. At the same time, progress of the inflammatory reaction induced by the above chemical mediators was observed by using a device measuring skin temperature by infrared rays. According to the results, we report the relationship between epicutaneous sensory irritation and inflammatory reaction, caused by external use of chemical mediators.View full abstractDownload PDF (1044K) -
[in Japanese]1997 Volume 31 Issue 2 Pages 209-213
Published: June 20, 1997
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSDownload PDF (2065K) -
1997 Volume 31 Issue 2 Pages A4-A5
Published: June 20, 1997
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSDownload PDF (1049K)
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