巻号一覧
25 巻 (1987 - 1988)
- 5 号 p. 239-
- 4 号 p. 191-
- 3 号 p. 133-
- 2 号 p. 61-
- 1 号 p. 1-
前身誌
25 巻, 5 号
選択された号の論文の4件中1～4を表示しています
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高橋 恭介, 岩崎 吉夫1988 年 25 巻 5 号 p. 239-245
発行日: 1988/10/31
公開日: 2010/09/27
ジャーナル フリーThe behavior of an ink in printing nip may be considered as a fundametal mechanism in printing. However, little is known about the transfer of ink in the blanket-plate nip. This paper reviews the characteristics of the commercial blankets and their printability. The ink transfer mechanism and the behavior of ink in a printing nip are discussed with respect to surface roughness and compressibility of the blankets.抄録全体を表示PDF形式でダウンロード (8027K) -
斎藤 雅雄, 大平 克己, 塚原 祐輔1988 年 25 巻 5 号 p. 246-252
発行日: 1988/10/31
公開日: 2010/09/27
ジャーナル フリーAn acoustic micrometer developed recently by the present authors has been applied to the thickness measurements of copper surface layers in copper and glass-epoxy multi-layered printed circuit boards, for which no non-destructive method was available previously. In the measurements, Lamb waves of S0 mode were excited in the surface copper layers by broad band ultrasonic plane waves which were obliquely incident upon the boards. Dips were observed in the frequency spectra of reflected waves, and the frequency for the dip was inversely proportional to the thickness of the surface copper layer. Because the ultrasonic waves were absorbed in the glass-epoxy layers just below the surface copper layers, measurements were not affected by the presence of the intermediate copper layers in the multi-layered printed circuit boards. Thus, a non-destructive method has been established with which the thicknesses of surface copper layers of multi-layered printed circuit boards, could be measured. Measurements for a wide range of thickness from 17μm to 70μm have been achieved by using the ultrasonic waves with a frequencyband from 20MHz to 120MHz.抄録全体を表示PDF形式でダウンロード (2083K) -
ブランケットの表面粗さ及び圧縮性とインキ付着形態高橋 恭介, 湯川 泰克, 岡田 寿夫, 岩崎 吉夫1988 年 25 巻 5 号 p. 253-257
発行日: 1988/10/31
公開日: 2010/09/27
ジャーナル フリーFive types of test blankets were prepared to study the effects of surface roughness and compressibility on ink transfer. Three types of these blankets had different surface roughness, while two types had different compressibility on the identical surface compound and surface roughness. There are many white micro spots in solid area printed by smoother surfaced blanket, as the ink layer, which contain micro drops of fountain solution transfer from PS plate to blanket without deforming. The rougher surfaced blanket tend to be a little white micro spots in solid area, since the ink layer is forced to move to all holizontal direction along micro concave of the blanket at the printing nip. The fine pattern image, printed by a blanket with smoother surface deforms the ink layer move than that with rougher surface. It is thought that the rough surfaced blanket has more micro convex and concave, which disturb the spread of ink layer at the printing nip. Concerning the compressibility of blankets, high modulus blanket has less white micro spots than low modulus blanket, probably of the printing pressure moving the ink layer to holizontal direction.抄録全体を表示PDF形式でダウンロード (20594K) -
小寺 宏曄1988 年 25 巻 5 号 p. 258-267
発行日: 1988/10/31
公開日: 2010/09/27
ジャーナル フリーPDF形式でダウンロード (1020K)
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