日本印刷学会論文集
Online ISSN : 2185-1263
Print ISSN : 0040-0874
ISSN-L : 0040-0874
最新号
選択された号の論文の8件中1~8を表示しています
  • 石川 敏勝
    1987 年 24 巻 2 号 p. 77-84
    発行日: 1987/01/30
    公開日: 2010/09/27
    ジャーナル フリー
    Depending on improvement of All-Point-Addressable and High-resolution printer technology and software application technology in publishing area, the Computer CTS by digitalization of document (characters, photos and etc.) is making great progress instead of current CTS by Typography. This paper describe about Text-composition using digitalized characters and Digitalization of photos using requantization and halftoning with screening.
  • 長尾 吉雄
    1987 年 24 巻 2 号 p. 85-104
    発行日: 1987/01/30
    公開日: 2010/09/27
    ジャーナル フリー
    As the more CEPS (Color Electronic Prepress System) has come into wide uses, the more demands for integrating text processing capabilities such as text input and editting into a color scanner and CEPS, in addition to image processing such as page make-up for color pictures, are increasing. This paper describes how to cope with these increasing demands, using scanners and CEPS.
  • 竹内 時男
    1987 年 24 巻 2 号 p. 105-112
    発行日: 1987/01/30
    公開日: 2010/09/27
    ジャーナル フリー
    This paper outlines the phototypesetting systems which are able to output complete pages: both kan-ji text and graphics. Full pagenation systems are used in many applications: news papers, parts lists, reference books for students, etc.. But it is nessesary for the systems to improve cost-effectiveness to be used in all applications instead of paste-up systems. “Batch method” is used to compose and layout much volume of text and graphics for books, parts lists, etc., and “Interactive method” is used to make up complex commercial applications. Both CRT and Laser setters are now used to output text and graphics, but laser setters may be mainly used in near future.
  • オフセット版としての画像部と非画像部形成の可能性について
    松本 和雄, 内田 雅之, 李 仁煕, 種田 靖夫, 日野 照純
    1987 年 24 巻 2 号 p. 113-118
    発行日: 1987/01/30
    公開日: 2010/09/27
    ジャーナル フリー
    As a part of consecutive research titled on the heading of this paper, a study on selecting of suitable oil-colors, which will be absorbed on the unsealed area of anodized aluminium plate, was carried out by the evaluation of critical surface tensions of dyed surfaces. As the results, it was found that the surface dyed by Neozapon blue, Neozapon yellow or Oil red showed the critical surface tension of 26dyn/cm to 30dyn/cm, and any of them were ink-receptive. It was ascertained that the oil-colors mentioned above had no affinity to sealed area of anodized aluminium plate. Further, the stabilization energy by the nondispersion forces on undyed surfaces were evaluated by the measurments of contact angles in three-phase system of water-hydrocarbon-sealed surface of anodized aluminium plate. It was consequently obtained that the stabilization energy of them were 7dyn/cm to 8dyn/cm.
  • 杉本 登志樹, 三上 誠司
    1987 年 24 巻 2 号 p. 119-137
    発行日: 1987/01/30
    公開日: 2010/09/27
    ジャーナル フリー
    Recently, register controllers which automatically control color to color registration in gravure presses are very popular in printing industry, but the controlling ability is regarded as insufficient. Therefore, we have developed the most efficient register controller which automatically calculates optimum correction values depending upon the construction of a printing press and printing conditions, then corrects the register error rapidly thereby reducing spoilage to a minimum. To make the most efficient register controller, first of all, we made the calculation model of a printing press and became to be able to simulate the phenomenon of a register error by a computer. Then we decided to control in PD control method and could obtain the optimum gains in PD control through simulating the phenomenon of a register error by changing printing conditions such as the pass length between the printing units, the compensator roller displacement velocity, the printing speed, the tension of the web and the radius of the gravure cylinder, affecting the register control. Finally, we have developed the controller that always controls registration in response to the construction of the printing press and printing conditions.
  • 杉田 和之, 上野 信雄, 野田 聡, 斉藤 秀一
    1987 年 24 巻 2 号 p. 139-149
    発行日: 1987/01/30
    公開日: 2010/09/27
    ジャーナル フリー
    ポジ型電子線レジストのドライエッチング耐性と感度とは両立し難い性能であるといわれているが, 橋かけしたレジストの強制現像によるとドライエッチング耐性を低下させることなく, 感度を向上させることができる. 分子量とN-メチロール化メタクリルレアミド (mMAA) の含有率をかえながら, メチルメタクリレート (MMA) とmMAAとの共重合体を合成し, いろいろな現像条件下における電子線照射特性をしらべた. mMMA基はきわめて熱反応性に富み定量的に架橋を生成するので, 共重合体の主鎖中に少量のmMAAを導入することによって, 未照射部のレジスト膜を効率よく不溶化できることがわかった. 強制現象によってそのPMMA共重合体の感度は8-10μC/cm2, つまり標準現像条件下におけるPMMAの約7倍まで向上させることができた. しかしながら, いくつかの場合にはコントラストの低下と膜厚の減少がなお観察された. 膜厚の減少を抑制しながら感度の向上をはかるためには, 完全に硬化したレジスト膜が少量の電子線照射量で可溶化できるように架橋密度を厳密にコントロールすること, ならびに一定密度の架橋点を含んでいるレジスト高分子が不溶化されるに十分な大きさの分子量であることが不可欠の条件であることが明らかとなった. もしこれらの条件が完全に満たされたなら, この共重合体レジストはさらに高い感度を示すものと期待される.
  • 渡辺 鋼市郎, 大坪 泰文, 足立 茂聡, 池田 竹司
    1987 年 24 巻 2 号 p. 151-156
    発行日: 1987/01/30
    公開日: 2010/09/27
    ジャーナル フリー
    Due to excessive ink spitting over edge of ink rail, many stains and spots appear on the printed sheet in news printing. The mechanism of this trouble was discussed in relation to water absorption of ink. To simulate the flow of ink in printing process, the tack value was measured as a function of time with water drops continuously fed to ink over rollers of inkometer. The tack value suddenly dropped after a certain period depending on the type of ink and flow rate of water, because the slip between two rollers occurred by formation of water film over ink. The stronger the tendency to cause ink spitting, the shorter the period of stable operation is. Improper ink-and-water balance is primarily responsible for the trouble.
  • 増田 俊朗, 三上 憲明, 島田 仁章
    1987 年 24 巻 2 号 p. 157-164
    発行日: 1987/01/30
    公開日: 2010/09/27
    ジャーナル フリー
    The printing quality monitoring system is a new inline high-speed inspection equipment for the checking of printing defects (scumming, hickey, mis-resistering, etc.) aiming to replace conventional manual operation. The system is composed of a CCD camera that takes the print pattern as image data, a xenon light source with optical fiber to the printed matter, an image data processing device for judging defects, and a display unit. This system includes the following features: (1) Complete surface inspection of all products. (2) High-speed inspection. (3) High-precision inspection.
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