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2. 发明公开

EP1942007A1 PLANOGRAPHIC PRINTING METHOD 有权
标题翻译： TACHI FLUDRUCKVERFAHREN
公开(公告)号：EP1942007A1
公开(公告)日：2008-07-09
申请号：EP06811149.1
申请日：2006-10-03
申请人： TOYO INK MFG. CO., LTD.
发明人： OCHIAI, Yoshie c/o Tokyo Ink Mfg.Co., Ltd , SASAKI, Takeshi c/o Tokyo Ink Mfg.Co., Ltd , KURITA, Eiji c/o Tokyo Ink Mfg.Co., Ltd , KAWADA, Yasuyuki c/o Tokyo Ink Mfg.Co., Ltd , HOSOI, Isao c/o Tokyo Ink Mfg.Co., Ltd , MAEDA, Kazuhiro c/o Tokyo Ink Mfg.Co., Ltd , YOSHIDA, Satoru c/o Tokyo Ink Mfg.Co., Ltd
IPC分类号： B41M1/14 , B41M1/06 , C09D11/02
CPC分类号： B41M1/06 , B41M1/18 , C09D11/037
摘要： The present invention relates to a lithographic printing method that uses inks selected from amongst yellow, magenta, cyan and black inks, the method comprising using yellow, magenta, cyan and black inks for which the number of representable colors obtained when printing the yellow, magenta, cyan and black inks with the density values for the yellow, magenta and cyan inks set to standard density values is at least 1.1 times the number of representable colors obtained when printing yellow, magenta, cyan and black Japan Color standard inks with the density values for the yellow, magenta and cyan Japan Color standard inks set to standard density values, and printing the yellow, magenta, cyan and black inks with the density values for the yellow, magenta and cyan inks set to 1.0 to 1.5 times the standard density values. The standard density values are from 1.40 to 1.44 for yellow, from 1.52 to 1.56 for magenta, and from 1.63 to 1.67 for cyan, and the number of representable colors refers to the number of colors that can be expressed when printing is conducted using either the yellow, magenta, cyan and black inks, or the yellow, magenta, cyan and black Japan Color standard inks, and is the number of colors that can be represented by the L*a*b* color system (wherein, L* = 10y (wherein, y is an integer from 0 to 10), a* = 10x (wherein, x is an integer from -12 to 12), and b* = 10z (wherein, z is an integer from -12 to 12).
摘要翻译：本发明涉及使用从黄色，品红色，青色和黑色墨水中选择的油墨的平版印刷方法，所述方法包括使用黄色，品红色，青色和黑色墨水，当印刷黄色，品红色时获得的可表示颜色的数量，设置为标准浓度值的黄色，品红色和青色墨水的浓度值的青色和黑色墨水是印刷黄色，品红色，青色和黑色的可表示颜色的数量的至少1.1倍。具有密度值的日本彩色标准油墨对于黄色，品红色和青色日本彩色标准墨水设置为标准浓度值，并打印黄色，品红色，青色和黑色墨水，黄色，品红色和青色墨水的浓度值设置为标准密度值的1.0至1.5倍。标准密度值对于黄色为1.40至1.44，对于洋红色为1.52至1.56，对于青色为1.63至1.67，可表示颜色的数量指的是使用黄色，品红色，青色和黑色墨水，或黄色，品红色，青色和黑色日本彩色标准墨水，并且是可以由L * a * b *颜色系统表示的颜色数量（其中，L * = 10y （其中，y为0〜10的整数），a * = 10x（其中，x为-12〜12的整数），b * = 10z（z为-12〜12的整数）。

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