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Volume 54 (1991)
- Issue 6 Pages 636-
- Issue 5 Pages 548-
- Issue 4 Pages 382-
- Issue 3 Pages 224-
- Issue 2 Pages 116-
- Issue 1 Pages 3-
Volume 54, Issue 4
Displaying 1-12 of 12 articles from this issue
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Haruhiko IWANO1991 Volume 54 Issue 4 Pages 382-388
Published: August 28, 1991
Released on J-STAGE: August 11, 2011
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Investigation on the Suitability of Current EnclosuresYasuhiro NAGASHIMA, Hiroko ARAI, Souichi KUBO, Haruhiko IWANO1991 Volume 54 Issue 4 Pages 389-394
Published: August 28, 1991
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSIn this paper, the photographic activity of enclosures to be used for storing photographs is examined. To estimate basical properties of archival enclosures, about 90 samples were tested by a proposed ISO method (DIS 10214 TC-42/WG-5).
Approximately a quarter of the test samples met the criteria for archival storage capability.
Moreover, on paper enclosures, it was found that the alkali reserve were not always a useful parameter to detect the suitability of enclosure.
Further examination on the testing method should be required.View full abstractDownload PDF (698K) -
A Prediction by Incubation Tests under a High HumidityKakuya SUGIURA, Kouji KAKIKURA, Hiroko ARAI, Souichi KUBO1991 Volume 54 Issue 4 Pages 395-400
Published: August 28, 1991
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSThe albumen-paper print was used as a printing material in photographic practice from 1855 to 1895. A substantial portion of the legacy of 19th-century photographs exists in this form. More or less, most of them have deteriorated.
In this study, we reproduced the albumen-paper prints and incubated them to determine the speed of density decrease caused by deterioration. The albumen-paper prints prepared for the test were incubated at 60°-85°C, 86% RH. From the incubation tests, applying the Arrhenius' equation, we predicted the image life of albumen-paper print as follows. Dark storage period: 6±1.2 years at 20°C on 86% RH.View full abstractDownload PDF (699K) -
Hideko FUJII, Etsuo FUJII1991 Volume 54 Issue 4 Pages 401-410
Published: August 28, 1991
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSStability of the color images produced by full-color Cycolor copiers was studied. Test pieces were prepared by copying the Macbeth Color Checker and Test Chart No.5-1 SEPJ in full size with Cycolor machines. An accelerated dark stability test was carried out in an incubator kept at 60-80°C and 60% RH, while light stability tests consisted of irradiation with a Xe light Fade Meter, fluorescentlamps or a north skylight. The degrees of image deterioration were evaluated by the change in color expressed in terms of color difference in CIELAB. Whether the deterioration is caused by discoloration or fading is easily judged by inspecting the ratio of the components in color difference.
According to our tests, Cycolor images exhibited an obvious instability for dark and light storages. The degree and the behavior of deterioration varied for each patch and depended on test conditions. Light irradiation resulted in a remarkable deterioration consisting of discoloration and fading accompanied with a yellowing of the paper base. In contrast, the accelerated dark stability test, which caused a less degree of deterioration than the light stability test, brought about only discoloration.View full abstractDownload PDF (5497K) -
Kazuhiko TAKEMURA1991 Volume 54 Issue 4 Pages 411-417
Published: August 28, 1991
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSThe color-appearance models haue been vigorously studied in this decade. Using one of such models, M. R. Pointer developed a method for assessing the color reproduction quality of color images. In the present paper, I try to evaluate the respective contribution of hue-, chroma-, or lightness difference formula by Hunt's color-appearance model. Psychological evaluations and statistical analyses are applied by using a set of color prints with different hue-, chroma-, and lightness values. I have found that the relative values of 2.3: 1.0: 2.2 are most appropriate as the weighting factors for hue-, chroma-, and lightness differences in my color difference formula for the color samples so far studied.View full abstractDownload PDF (2514K) -
Sanemi SONOIKE1991 Volume 54 Issue 4 Pages 418-422
Published: August 28, 1991
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSThe luminescence peaks of oxygen doped silver bromide crystals are observed. Thestructure of oxygen centers are discussed in comparison with the results of sulfur doped silver bromide and silver chloride crystals. The effects of oxygen are thought to be similar to that of sulfur. The effects of excess silver are discussed as a supersaturation of silver atoms in the crystal to form F-center and other silver excess centers. The nature of the F-center in silver halide crystals is also discussed in comparison with the case of alkali halides. It seems that the silver aggregates do not make luminescence centers as well as the other isolated molecules in the matrix.View full abstractDownload PDF (530K) -
Hirohiko YATA1991 Volume 54 Issue 4 Pages 423
Published: August 28, 1991
Released on J-STAGE: August 11, 2011
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James M. REILLY, [in Japanese]1991 Volume 54 Issue 4 Pages 424-429
Published: August 28, 1991
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSThe principal chemical deterioration mechanisms for photographic materials are reviewed, dividing the subject into problems which affect the generic components of a photographic object: the final image material (silver and organic dyes), binder layer (gelatin, albumen, or collodion), and support (metal, glass, paper, and plastic). Concerning silver images, oxidation and improper processing are the most important deterioration mechanisms, while for dyes photooxidation and thermal instability are paramount. Protein binder materials are suspceptible to physical damage and fungus growth. Deterioration of cellulosic plastic film supports due to acid-catalyzed hydrolysis is extensively discussed. The importance of controlled relative humidity and temperature in photographic storage is emphasized. Temperature is of highest importance with chromogenic color materials, while RH and contaminants are critical in the rpeservation of silver images.View full abstractDownload PDF (905K) -
James M. REILLY1991 Volume 54 Issue 4 Pages 430-434
Published: August 28, 1991
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSThe Image Permanence Institute at Rochester Institute of Technology is a non-profit academic research institute devoted to the study of the preservation of imaging media. The major projects now in progress at IPI are reviewed, falling in three main areas: post-process image stabilizing treatments for silver microfilm, environmental factors in support deterioration of cellulose acetate safety films, and test methods to evaluate photographic storage enclosures such as envelopes, boxes, and albums. IPI has developed a new technology for stabilizing microfilm images against oxidative attack in the form of redox blemishes or overall fading. Known as polysulfide treatment, the essential feature is the conversion of more than half of the image silver to silver sulfide, without affecting image color or density. IPI has also done extensive research to quantify the temperature and humidity dependence of acetate support degradation; a surprisingly strong humidity dependence was observed, along with expected temperature dependence. A brief overview of research in other laboratories is given.View full abstractDownload PDF (829K) -
Toshiko KENJO1991 Volume 54 Issue 4 Pages 435-439
Published: August 28, 1991
Released on J-STAGE: August 11, 2011
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Masatoshi OHBA1991 Volume 54 Issue 4 Pages 440-443
Published: August 28, 1991
Released on J-STAGE: August 11, 2011
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Hiroshi KANZAKI, A. L. LASKAR, Yen T. Tan, Jacques Pouradier, Harry E. ...1991 Volume 54 Issue 4 Pages 445-497
Published: August 28, 1991
Released on J-STAGE: August 11, 2011
JOURNAL FREE ACCESSDownload PDF (6995K)
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