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Volume 27 (1990)
- Issue 6 Pages 458-
- Issue 5 Pages 384-
- Issue 4 Pages 322-
- Issue 3 Pages 264-
- Issue 2 Pages 64-
- Issue 1 Pages 4-
Volume 27, Issue 4
Displaying 1-7 of 7 articles from this issue
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Yuji KANAZAWA1990 Volume 27 Issue 4 Pages 322-327
Published: July 31, 1990
Released on J-STAGE: September 27, 2010
JOURNAL FREE ACCESSAn ever-increasing demand for higher productivity in pre-press work requests a shorter delivery time, a lower cost with less amounts of labor, etc. At some latest printing exhibitions such as IGAS'89 and DRUPA'90, reflecting trends of simultaneous processing for text and total image as well as DDCP (Direct Digital Color Proofing), Photographic materials were exhibited with their new forms of packaging or with better handling properties. The present paper discribes the new series of Fuji contact films which realized better handling properties such as dimensional stability, anti-static property and draw-down time in vacuum frames.View full abstractDownload PDF (1868K) -
Effect of Physical Properties of Ink and Printing ConditionsFumitoshi NISHIWAKI, Takashi INAMI, Masaaki ADACHI1990 Volume 27 Issue 4 Pages 328-333
Published: July 31, 1990
Released on J-STAGE: September 27, 2010
JOURNAL FREE ACCESSThe effects of physical properties of inks and printing conditions on printability in direct waterless lithography on glasses were examined. From the viewpoint of the excellence in accuracy of printing film thickness and printing image area size, the direct printing by the waterless lithographic plate of aluminium substrate was used.
Results are summarized as follows:
(1) Mean value of printing film thickness is dependent on printing speed (V) and supplied ink film thickness (T) on transfer plate.
(2) Accuracy of printing film thickness and printing image area size are dependent on tack of the ink (Tack), V, T and Tack, printing pressure, T, respectively.
(3) By constructing the static model for analyzing the ink splitting, experimental results on printing speed can be explained qualitatively.View full abstractDownload PDF (685K) -
Naoto GOZAWA1990 Volume 27 Issue 4 Pages 334-343
Published: July 31, 1990
Released on J-STAGE: September 27, 2010
JOURNAL FREE ACCESSThis study shows applicability of some methods which predict the color reproduction of a multicolor halftone image with respect to the RGB filter reflection density and the reflective tristimulus values in CIE XYZ. The first method tested in this paper applies the Neugebauer's equation, which predicts the color reproduction of transmission light at ink layers, to a model which predicts the tone reproduction of a single color halftone suggested by Clapper and Yule in 1955. The second method is a combination of two laws, one is a convergence point law applied to the low and middle density ranges, another is a density additivity law limited by the surface reflection applied to the high density range. It is acertained that both methods are effective to predict the RGB filter density. On the other hand, it is recognized that only the first method is effective to predict the XYZ values. The reason is that the XYZ tristimuli are not complementary colors of CMY primary colors, while the convergence point law promises this relations implicitly.View full abstractDownload PDF (873K) -
Katsuyuki MORI, Seiichi TOCHIHARA1990 Volume 27 Issue 4 Pages 344-348
Published: July 31, 1990
Released on J-STAGE: September 27, 2010
JOURNAL FREE ACCESSThis paper presents electric data conversion method for Business Forms design.
(1) The characteristics of Business Forms.
(2) Data format of Business Forms design based on these chracteristics.
(3) CAD system for Business Forms using this data form and it's effects.View full abstractDownload PDF (555K) -
Mitsuo OBANA1990 Volume 27 Issue 4 Pages 349-358
Published: July 31, 1990
Released on J-STAGE: September 27, 2010
JOURNAL FREE ACCESSFor correction of master negatives of chart (for black and magenta plates), a new stick-up method has been developed and now practically applied at the Hydrographic Department of Japan. In the new method, a photocomposed stripping film for correction is stuck to the master negatives of chart without any technical skill and without fear for exfoliation afterwards. More than three years have been spent for improving the conventional method of correction for updating process of the master negatives of chart. As the result, a ‘sticking-up sheet’ coated with adhesive called ‘Adhese # 40’ using an adhesive coater, on which letters and symbols are printed in reverse by a photocomposer, and is backed with a special film base. This method has greatly improved the up-dating process of master negatives of chart in terms of speed, unexfoliation and easiness.View full abstractDownload PDF (3651K) -
Applications Course (3) Color ReproductionToshio ICHIMI1990 Volume 27 Issue 4 Pages 359-367
Published: July 31, 1990
Released on J-STAGE: September 27, 2010
JOURNAL FREE ACCESSThere are several methods of color reproduction in printing depending on the kind of original or print. Relatively simple pattern design such as for wrapping papers or cartons, can be printed using (1) regular type inks, (2) special ordered custom color inks or (3) color inks mixed from regular inks. The kinds of paper or thickness of ink film can have a considerable effect on hue, value and chroma of prints.View full abstractDownload PDF (4780K) -
Yoichi MORI1990 Volume 27 Issue 4 Pages 368-370
Published: July 31, 1990
Released on J-STAGE: September 27, 2010
JOURNAL FREE ACCESSDownload PDF (292K)
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