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平板印刷的原理
作者:admin 来源:http://www.sdhzyw.com 发布时间:2015-7-20 10:30:33 浏览次数:451
  平版印刷基本原理
The basic principle of lithographic printing          济南精装书制作
平版印刷是由早期石版印刷而发展命名的,早期石版印刷其版材使用石块磨平后应用,之后改良为金属锌版或铝版为版材,但其原理是不变的。
Lithographic printing is by the early lithograph development named. Early lithograph the plate using stones polished after application and improvement of metal zinc or aluminium version for the plate, but the principle is unchanged.
凡是印刷部份与非印刷部分均没有高低之差别,亦即是平面的,利用水油不相混合原理使印纹部分保持一层富有油脂的油膜,而非印纹部分上的版面则可以吸收适当的水分,设想在版面上油墨之后,印纹部分便排斥水分而吸收了油墨,而非印纹部分则吸收水分而形成抗墨作用,利用此种方法印刷的方法,就称为“平版印刷”。
Any printing part and the non printing parts were no difference between high and low, i.e., plane, using water and oil do not mix principle of the stamped part keep rich oil oil film, rather than stamped part layout can appropriate moisture absorption, envisaged in the pages of ink and printing area will repel water and to absorb the ink, and non image areas absorbed water formed ink resistant function and method of using this method to printing, is known as the "offset".
平版印刷由早期石印发展之后,因其制版及印刷有其独特的个性,同时在工作上亦极为简单,且成本低廉,故在近代被专家们不断的研究与改进,而成为现今印刷上使用更多的方法。
Lithographic printing followed by the early development of lithography, due to the plate making and printing has its own unique personality, also at work is also very simple, and the cost is low, so in modern times is experts continue to study and improve, become and using the most modern printing method.
平版印刷方式
Offset printing
平版印刷方式是由早期石版印刷转印方式发展而来,而描绘于转写纸上再落在版上成为反纹,然后印刷于纸面上为正纹。由于此种方法在印刷时所承受的压力,使本来就是平面版的平版(即印纹部分与非印纹部分均是平面的),承受了压力之后,使得占在版面上之油墨为之扩散膨胀,而产生画线不良现象,因此后来才改良称为柯式印刷法,其印刷方式是将版面制成正纹,印刷时被转印在橡皮筒上为反纹,再由反纹印到纸上为正纹,这样就可以改进印刷压力的弹性。
Offset printing is from early lithograph transfer development, describe on the decal paper and then drop in version has become an anti pattern, and printed on paper are lines. Due to the pressure borne by this method at the time of printing, make originally is lithographic edition plane (i.e. image and non image areas are plane), under pressure, the accounted for in the pages of ink for the diffusive expansion, and draw a line of undesirable phenomena, therefore only later modified for offset printing, the printing is the layout made positive lines, printing is transfer in the rubber tube for anti pattern, by anti print on paper by positive lines, so that it can improve the elasticity of the printing pressure.