巻号一覧
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30 巻, 1 号
選択された号の論文の7件中1～7を表示しています
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最近の平版インキの動向清水 重典1993 年 30 巻 1 号 p. 2-9
発行日: 1993/01/31
公開日: 2010/09/27
ジャーナル フリーIn the middle of severe economy recession in Japan, there are a quite number of demands for us to solve, for exsample, the measure for VOC, for OSHA, for high speed printing and standardization of process color. In general, printing industry is said to be the matured industry, so that no new inovation will be expected in near future. However, if we consider the earth environment in future, let us say, in a few decades, we have to solve a lot of difficult subjects such as reducing volatile portion from ink system, using aroma free solvent, expelling IPA from fountain solution, and so on. At the present stage of printing ink technology, both waterless printing and radiation curing printing are very much oriented for future from view point of ecology. In this article, these subjects are simply explained and discussed.抄録全体を表示PDF形式でダウンロード (1873K) -
湿し水の動向土井 建一1993 年 30 巻 1 号 p. 10-15
発行日: 1993/01/31
公開日: 2010/09/27
ジャーナル フリーIn recent years, the substitutive fountain solution concentrates for isopropyl alcohol (IPA) have come into wide use. These replacements are possible to reduce or eliminate IPA in fountain solution of continuoustype dampeners. In this paper, technical concept of these substitutes and notices, should be taken in practical use. are discribed.抄録全体を表示PDF形式でダウンロード (1583K) -
ブランケットの動向岡田 壽夫1993 年 30 巻 1 号 p. 16-20
発行日: 1993/01/31
公開日: 2010/09/27
ジャーナル フリーOffset printing technology is recently remarkably progressive in mainly printing quality, high speed printing, automatic process control of printing machine and so on. Accordance with the progress of these offset printings, it is necessary to improve the quality of rubber blanket in order to suit for many severely requirments. In this paper, the recent developement and trend in blanket technology is viewed, especially with respect to the compressivility and surface character.抄録全体を表示PDF形式でダウンロード (1086K) -
村澤 貞夫, 岡田 瑞穂, 服部 昌, 渡辺 満, 石灰 洋一, 村上 肇1993 年 30 巻 1 号 p. 21-27
発行日: 1993/01/31
公開日: 2010/09/27
ジャーナル フリーThe application of Titanium Dioxide (TiO2) photoreceptor to lithographic printing plate has been studied because high quality image is obtained by use of TiO2 photoreceptor and liquid toner. These materials have high resolving power (50 lines/mm), so the reproduction of small size dot is possible. The dot image formed on the TiO2 photoreceptor by contact exposure of dotted film is good enough for lithographic printing plate. Regarding printing test, the quality of print sample has been evaluated in comparison with the print produced by PS plate. The non-image area of TiO2 plate can be converted to hydrophilic surface by conventional etching solution. The print quality by TiO2 plate is almost the same with that by PS plate, and the smaller amount of dampening water is used during printing. Regarding the durability of TiO2 plate, producing at least 10000 prints from one plate is possible.抄録全体を表示PDF形式でダウンロード (1628K) -
林 努, 森 貴弘, 甘利 武司1993 年 30 巻 1 号 p. 28-33
発行日: 1993/01/31
公開日: 2010/09/27
ジャーナル フリーIn offset lithography, the ink picks up significant quantities of dampening solution as emulsified droplets. Good printability of lithographic ink depends on the balance between the ink and water content. In this study, the rheological properties of emulsifying inks are measured and dynamics of ink splitting and transfer in a roll nip are investigated. The values of yield stress and storage modulus are increased with emulsification. The acoustic study of the ink splitting is performed using a sound analyzing system consisting of a microphone with sensitivity at higher frequencies and a FFT analyzer. The ink splitting sound can be characterized by the power density in the frequency region between 15 to 35kHz and the magnitude of power density decreases with increasing the water content in ink. Growth and rupturing of ink filaments between rollers are observed using a video system which consists of a microscope. CCD video camera and a personal computer with an image processing board. The length of ink filaments also decreases with proceeding emulsification. The relations between these rheological properties and lithographic printability are discussed using three kinds of litho-inks with different formulations.抄録全体を表示PDF形式でダウンロード (1410K) -
水なし平版 (水有りとの対比) -印刷機前準備時間短縮の対応-鎌野 亮二1993 年 30 巻 1 号 p. 34-41
発行日: 1993/01/31
公開日: 2010/09/27
ジャーナル フリーHow much time do you need to prepare for P. S. plate printing? I suggest how to correspond to their preparedness time.抄録全体を表示PDF形式でダウンロード (1845K) -
塩崎 哲司1993 年 30 巻 1 号 p. 42-43
発行日: 1993/01/31
公開日: 2010/09/27
ジャーナル フリーPDF形式でダウンロード (501K)
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