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Volume 15 (1981)
- Issue 3 Pages 193-
- Issue 2 Pages 121-
- Issue 1 Pages 5-
Volume 15, Issue 3
Displaying 1-8 of 8 articles from this issue
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Yoshio Kaneda, Masahiro Iwaida1981 Volume 15 Issue 3 Pages 193-200
Published: December 25, 1981
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSThe present situation of enzymatic analysis methods for cosmetics was reviewed from viewpoints of its availability and its background. Some examples in which the methods were applied to cosmetics were also demonstrated.View full abstractDownload PDF (1147K) -
Yasuhide Tonogai, Yoshio Ito, Masahiro Iwaida1981 Volume 15 Issue 3 Pages 201-206
Published: December 25, 1981
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSA systematic detection and determination method of impurities in 10 kinds of cosmetic coaltar dyes was developed with the aid of HPLC under the following operation conditions. “Zipax SAX” (strong anion exchange resin) column, gradient elution system of 0.01M sodium borate and 0.2M sodium perchlorate with UV detection system at the wavelength of 254nm. In order to estimate organic impurities in cosmetic coal-tar dyes, total regulation system of organic matter impurities was proposed; i.e. contents of starting material residues and uncombined intermediates were expressed as typical starting material, while total subsidiary dyes were expressed as the quantities of original dyes. By use of the proposed method, actual survey was carried out on 38 samples of cosmetic azo coal-tar dyes.View full abstractDownload PDF (611K) -
Takumi Taniguchi1981 Volume 15 Issue 3 Pages 214-217
Published: December 25, 1981
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSSodium dodecylbenzenesulfonate (NaDBS) and NaDBS solubilizing yellow OB (YOB) in the aqueous solution were precipitated by addition of cationic cellulose polymer (CCP).
The molar ratio of DBS in the dried matrix of the complex thus precipitated was 1.0. Both DBS in the above-mentioned complex without YOB, and YOB in the complex solubilizing the dye were readily extractable with ethyl alcohol, but hardly with n-hexane and benzene. From these results it is speculated that YOB is solubilized in the complex of DBS-CCP, and released from the complex along with the release of DBS.View full abstractDownload PDF (508K) -
Yoshimasa Itoh, Noritaka Kamiya, Masahide Inoue, Masakatsu Hayakawa1981 Volume 15 Issue 3 Pages 218-224
Published: December 25, 1981
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSA method has been developed for the rapid analysis of permanent waving lotions by high performance liquid chromatography (H. P. L. C.). Permanent waving lotions containing cysteine have been conventionally analysed by N-Ethylmaleimide Method (Official Method), but the method was time-consuming, tedious and complicated, as well as poorly reproducible, so not practicable.
Cysteine was separated from other components and oxidation products, using μ-Bondapak C18 (4mm i.d., 300mmL.) and methanol-water (40:60v/v) containing 0.4% phosphoric acid and 0.005M sodium lauryl sulfate as an eluent. The detection of cysteine was monitored at 220nm or 225nm with separations accomplished in approximately 15min. The relative standard deviation of cysteine was less than 1.5%. This method could be also applied at the quality-control and the stability testing, and when the simultaneous determination of cysteine and thioglycollic acid as a stabilizer was accomplished by using 0.1% phosphoric acid as an eluent, the relative standard deviations of them were less than 2%.
Thus, it is found the present H. P. L. C. method is accurate, precise, rapid and highly reproducible for the analysis of permanent waving lotions containing cysteine.View full abstractDownload PDF (698K) -
Fuminori Harusawa, Tomoko Kato, Muneo Tanaka1981 Volume 15 Issue 3 Pages 225-232
Published: December 25, 1981
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSThe sorption of cationic and anionic surfactants by human hair, wool, and cotton has been studied. The sorption of surfactants decreased in the following order: wool>hair>cotton. The rate of sorption was found to be practically constant as long as the surfactants amounting to more than the cmc were present in the solution. The addition of oils decreased the amount of sorption of surfactants at relatively low concentrations of surfactant. The effect of cationics on reducing surface friction of human hair markedly depended on the alkyl chain length of the cationics. The following order of reducing surface friction was found: C22>DiC18≅C18>C16>C12. Cationics and oils sorbed by human hair were not easily desorbed by washing with water.View full abstractDownload PDF (951K) -
Seiichi Arai, Takashi Abe1981 Volume 15 Issue 3 Pages 233-237
Published: December 25, 1981
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSIt is known that there is a relation between the acidity of the skin surface and some skin protective functions.
Although water-soluble components in the sweat, horny layer and sebum are considered to contribute to the surface acidity, little is known about the quantitative relation among these factors.
Since lactic acid is thought to be one of the main acidic components, the relationship between skin pH and lactic acid value was investigated.
1. The amount of lactic acid was determined with our developing gas chromatography.
2. In vivo experiments were carried out on 20 healthy adults with respect to different seasons, regions and sexes. There were significant differences in skin pH and lactic acid values.
3. It was found that there was a significant correlation between skin pH (X) and lactic acid value (Y). The regression equation was X=5.289-log(Y-0.978).View full abstractDownload PDF (651K) -
Kazuhiko Shinozaki, Masato Tagawa, Mikuo Akimaru, Yujin Tabata1981 Volume 15 Issue 3 Pages 238-242
Published: December 25, 1981
Released on J-STAGE: August 06, 2010
JOURNAL FREE ACCESSBlending effects of homogeneous octaethylenglycol mono dodecyl ether with some pure lipophilic surfactants on CP (cloud point) and PIT (phase inversion temperature) were examined.
The reduction effects of lipophilic surfactants on CP and PIT were observed and discussed from the point of view of the surfactant structure. The maximum in CP reduction efficiency occured at IOB 0.4-0.5. The maximum in PIT reduction efficiency shifted on the larger side of IOB value.View full abstractDownload PDF (523K) -
Kazuyoshi Morita, Mitsuko Ishigaki, Takashi Abe1981 Volume 15 Issue 3 Pages 243-253
Published: December 25, 1981
Released on J-STAGE: May 19, 2015
JOURNAL FREE ACCESSWe reexamined safety of some cosmetic materials on a hereditary toxicity. The cosmetic materials tested were preservatives, Sunscreens, antioxidants, hormones and surfactants. Mutagenicity assay were carried out for Rec-assay using Wild and Recombination-deficient strains of B. Subutilis and Reversion assay using Salmonella typhimurium TA98 and TA100 with or without the microsomal activation (±S-9mix). In addition to the above-described procedures, Rec-assay with irradiating fluorescent lump or cold incubation were carried out to some materials, such as sunscreens and antioxidants. Irg-DP300, a preservative, was weak rec-positive at very high concentration such as 5 mg/ disk, but negative on revession assay. Both 8-MOP and 0-201 newly found out as positive control of photo-rec assay were clearly rec-positive by irradiation of fluorescent lump, but all of sunscreens and antioxidants were negative. Estradiol, a hormone, induced slightly more revertants than control with S-9mix and three anion surfactants of sulfate derivatives (Surf-1, 2, 4) and two nonion surfactants of cetyl ether and lanolin alcohol derivatives (Surf-13, 14) also exhibited the same effects with or without S-9mix, but we couldn't sufficiently recognize these mutagenicity. These phenomena are yet obscure whether due to any reasons.View full abstractDownload PDF (1733K)
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