日本写真学会誌
Online ISSN : 1884-5932
Print ISSN : 0369-5662
ISSN-L : 0369-5662
33 巻, 3 号
選択された号の論文の6件中1~6を表示しています
  • 藤沢 信
    1970 年 33 巻 3 号 p. 127-137
    発行日: 1970/11/20
    公開日: 2011/08/11
    ジャーナル フリー
    A review on the progress of photography in foreign countries in the year 1969. Subjects are selected form scientific and technical viewpoints in the following fields: general view, cameras, lenses and accesories, light sources, silver halide sensitive materials, non silver sensitive materials, color photography, photographic sensitivity, development, sensitometry, motion picture, scientific photography and graphic arts.
  • 入江 春雄, 持田 光義
    1970 年 33 巻 3 号 p. 138-142
    発行日: 1970/11/20
    公開日: 2011/08/11
    ジャーナル フリー
    Effect of gelatin on the development of silver halide is studied with gelatin free silver bromide hydrosol. Gelatin reprsses the development of silver bromide by a P-Q developer. The degree of development repression vrries with gelatin. It seems to depend on arginine content of gelatin.
    Effects of chemically modified gelatins, esterifiied gelatin and deaminated one are tested also. The former more strongly represses the development of silver bromide than the control gelatin, while the latter does less. Thus it is concluded that the repressing effect of development by gelatin depends principally on its cationic groups, while carboxyl anion plays little a role.
  • ゼラチン中の拡散抑制要因
    岩野 治彦
    1970 年 33 巻 3 号 p. 143-149
    発行日: 1970/11/20
    公開日: 2011/08/11
    ジャーナル フリー
    The rates of diffusion of HCHO, OH- and developing agents in coated gelatin layers or gelatin gels were determined by the following three methods;(1) measurement of depth of lateral penetration into a coated gelatin layer, (2) determination of diffused amount across the interface of two contacting gels and (3) deterination of the amount of diffse-in from solution into gel.
    The diffusion constant (D), which was derived considering the retardation by reactants in gelatin, was compared with the apparent diffusion constant (Dapp.) which was derived without such a consideration, while the latter might be practically more useful.
    The results show that, in ordinary photographic processing solutions, the reaction of OH- with the functional groups in gelatin during diffusion remarkably retards the OH- peneration which causes the large D/Dapp. ratio as compared with that of HCHO, although the diffusion of the latter is also retarded to a smaller extent by consumption for tanning. No particular difference is observed between the diffusion in a layer and that in a gel.
  • 塩化銀粒子の成長速度に及ぼすpHおよびイオン強度の影響
    井口 茂, 矢野 哲夫
    1970 年 33 巻 3 号 p. 150-159
    発行日: 1970/11/20
    公開日: 2011/08/11
    ジャーナル フリー
    For the purpose of investigating the role of basic and acidic groups in the acrylamide-acrylic acid-2methyl-l-vinylimidazole-copolymers, the rate of physical ripending of AgCl crystals, in presence of the copolymers, having different compositions, were measured at various ionic strength.
    In the case of lower ionic strength and lower pH value, adsorption by Coulomb forces, between positively charged dissociated imidazole groups and negatively charged AgCl crystal surfaces, take place. But this adsorption disappears in the region of higher ionic strength.
    In the region of higher pH value, when the ionic strength is low, negatively charged dissociated carboxyl groups hinder the absorption of imidazole groups onto the AgCl surface, but this hindering action cannot be observed, when the ionic strength becomes higher.
  • 異なる晶癖に対する安定剤の吸着と写真性の関係
    嶋田 健雄, 宍戸 忠夫, 大井 令一, 長江 規
    1970 年 33 巻 3 号 p. 160-165
    発行日: 1970/11/20
    公開日: 2011/08/11
    ジャーナル フリー
    We investigated the state of the adsorption of several typical stabilizers (4-hydroxy-6-methyl-1, 3, 3a, 7-tetraazaindene, 5-nitro-benzoimidazole, N-ethyl-benzothiazolium bromide, and 2-mercaptobenzothiazole) for twe different grains of silver bromide ((100) and (111) grain), and show the relationship between the amount of adsorption and the photographic behavious of these stabilizers.
    It is concluded as follows:
    (1) The adsorption of these stabilizers varies with the grain shapes of silver bromide and is dependent on the PAg of the solution.
    (2) A good corelation was obtaind between the amount of stabilizers absorbed and its retarding action during development.
  • 角田 隆弘
    1970 年 33 巻 3 号 p. 166-172
    発行日: 1970/11/20
    公開日: 2011/08/11
    ジャーナル フリー
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