JDF数字化流程中油墨预置技术的研究
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摘要
目前,国内印刷业为了在激烈的竞争中进一步提高印刷质量和生产效率,一些企业相继引进了国外的各种油墨预置系统,通过它在开机前预先调整印刷机的墨键,从而使第一张印张的着墨情况尽可能与印刷成品接近,但这一技术在实际应用中却不尽人意,主要是人们对这一新技术不够了解,对油墨预设信息的来源不准确,而这一过程的影响因素又特别多。因此,基于JDF油墨预置的研究对印刷业的发展有着极为重要的意义。
针对以上问题,本文提出了一种基于JDF数字化流程的油墨预置技术,并在VC++的平台下完成了这一技术系统的设计实现。该系统一方面以JDF文档中的油墨预置信息为依据,另一方面以RIP后拼大版的1-bit tiff文件版面信息为基础,分析得到各墨区的网点面积率后,结合CMYK四色转移曲线来确定相应的墨刀开度,并将其用于印刷机墨键的预调整,从而实现油墨预置。采用这种高效的信息传递模式,确保了更高的精确度,大大提高了印刷机墨区分配的合理性和准确性。同时为多机组间的质量均衡提供了管理依据,也为企业采用数字化生产及管理流程提供了保障。
实验表明该方法油墨预置的效果较好,能达到缩短开机时间,减少废报,提高印刷质量的目的。此外,由于该技术在信息存储传输中采用了JDF和Txt两种形式,与CIP4油墨预置系统相比,能更好地实现国内数字化信息的共享,应用将更加广泛。
At present, in order to improve quality and efficiency further in furious competition ,many inland enterprises ,one after the other, introduced all kinds of ink presetting system from abroad .which can pre-adjust ink key in printing machine before it starts working. So that the ink on the first sheet can be consistent with the presswork as soon as possible. But it doesn't work so well in its applications. The main reason is that people don't know this new technology and origin of ink presetting information is inaccurate, moreover the course can be influenced by many factors. Therefore, the research of ink presetting based on JDF has special significance in the development of print.
So, an ink presetting method based on JDF digital technology has been proposed and designed under VC++ platform in this paper. With this method, either JDF files or 1-bit tiff files after RIP can be accepted .Based on this information, dot area corresponding inkzone will be obtained and then converted to blade opening after being combined with CMYK transfer curves. Then, pressman can preset ink key with the opening data. Since the effective transmission model of information insures higher precision, the rationality and veracity of inkzone distributing will be improved greatly. Meanwhile, it provides management warrant for the equilibrium of quality among several printing unites, and ensures the digital production and management flow in printing enterprise.
It proved that the method has good performance, can shorter make-ready time, reduce paper waste largely, improve quality of printing process greatly. Furthermore, because the presetting data is saved in both JDF and txt files ,it will be more easy to realize sharing of digital information compared with CIP4 ink presetting system. Therefore, it will be more popular in inland print.
针对以上问题,本文提出了一种基于JDF数字化流程的油墨预置技术,并在VC++的平台下完成了这一技术系统的设计实现。该系统一方面以JDF文档中的油墨预置信息为依据,另一方面以RIP后拼大版的1-bit tiff文件版面信息为基础,分析得到各墨区的网点面积率后,结合CMYK四色转移曲线来确定相应的墨刀开度,并将其用于印刷机墨键的预调整,从而实现油墨预置。采用这种高效的信息传递模式,确保了更高的精确度,大大提高了印刷机墨区分配的合理性和准确性。同时为多机组间的质量均衡提供了管理依据,也为企业采用数字化生产及管理流程提供了保障。
实验表明该方法油墨预置的效果较好,能达到缩短开机时间,减少废报,提高印刷质量的目的。此外,由于该技术在信息存储传输中采用了JDF和Txt两种形式,与CIP4油墨预置系统相比,能更好地实现国内数字化信息的共享,应用将更加广泛。
At present, in order to improve quality and efficiency further in furious competition ,many inland enterprises ,one after the other, introduced all kinds of ink presetting system from abroad .which can pre-adjust ink key in printing machine before it starts working. So that the ink on the first sheet can be consistent with the presswork as soon as possible. But it doesn't work so well in its applications. The main reason is that people don't know this new technology and origin of ink presetting information is inaccurate, moreover the course can be influenced by many factors. Therefore, the research of ink presetting based on JDF has special significance in the development of print.
So, an ink presetting method based on JDF digital technology has been proposed and designed under VC++ platform in this paper. With this method, either JDF files or 1-bit tiff files after RIP can be accepted .Based on this information, dot area corresponding inkzone will be obtained and then converted to blade opening after being combined with CMYK transfer curves. Then, pressman can preset ink key with the opening data. Since the effective transmission model of information insures higher precision, the rationality and veracity of inkzone distributing will be improved greatly. Meanwhile, it provides management warrant for the equilibrium of quality among several printing unites, and ensures the digital production and management flow in printing enterprise.
It proved that the method has good performance, can shorter make-ready time, reduce paper waste largely, improve quality of printing process greatly. Furthermore, because the presetting data is saved in both JDF and txt files ,it will be more easy to realize sharing of digital information compared with CIP4 ink presetting system. Therefore, it will be more popular in inland print.
引文
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[4]陈永.墨控系统在印刷中的应用[J].印刷杂志,2005-07(232):60-61.
[5]陆水华,窦连东.CIP4油墨预置系统在报业印刷中的应用[EB/OL].中国印刷企业网:http://www.yinshuaqiye.com/Article_Show.asp?ArticleID=3665.2007-3-20.
[6]CIP4系统:报业印刷者割舍不下的痛与爱[EB/OL].中印网(来源:中国印刷市):http://www.eprint.cn/html/3/20060815102906.htm,2006-08-15.
[7]宗义刚.印前数字化工作流程在国内外应用状况的对比分析[J].今日印刷,2006-02:2-4.
[8]蔡浩光.高宝公司和Rogler公司展示全部JDF工作流程[J].广东印刷,2005-01:72-73.
[9]李康.数字化流程一路走来[J].印刷杂志,2006-06(243):46-49.
[10]我国印刷企业应用JDF的调查分析报告[EB/OL].大中华印艺网,印艺专题(来源:慧聪网):http://www.cgan.net/edition/jdf/04102303.htm.
[11]李宝强.报纸印刷色彩控制诌议[J].印刷杂志,2007-05(254):21-24.
[12]刘五珍.打造报纸的数字化生产流程[J].印刷杂志,2004-09(222):14-15.
[13]董浙波.印刷工业的数字化工作流程剖析[J].广东印刷,2004-05:34-35.
[14]邝贤锋.JDF的剖析及应用研究[D].广州:广东工业人学,2005.
[15]罗如柏,李延雷,周世生.未来的数字化工作流程模式JDF+PDF[J].今日印刷,2006-02(234):77-78.
[16]余喜.数字化工作流程的关键技术—JDF概观[J].广东印刷,2003-04:35-36.
[17]杨萍,张天棚.从德鲁巴看JDF标准的发展[J].印刷质量与标准化,2004-06:9-11.
[18]罗如柏,周世生.JDF工作流程中的拼大版节点[J].包装工程,2006,27(2):259-263.
[19]吴跃卿,王民,郑军.平版胶印JDF工作传票分析及通讯接口开发[J].包装工程,2007-04,28(4):66-68.
[20]燕向晖.基于DOM/SAX的JDF实现机制的研究[D].武汉:武汉人学,2006.
[21]刘武辉,郭颖妤.数字印刷工作流程中的数据格式[J].印刷质量与标准化,2004-06:18-20.
[22]李雪蕾.面向JDF的数字化印刷工作流程[J].今日印刷,2003-05:26-29.
[23]范明,李华,杨静.手动油墨预置技术与应用[J].印刷杂志,2006-06(234):66-70.
[24]王尚伟.印刷油墨预设量的初步探讨[J].中国印刷,2006-07:90-93.
[25]刘武辉,郭颖妤.数字印刷工作流程中的数据格式[J].印刷质量与标准化,2004-06:18-20.
[26]徐敏,顾萍.Tiff格式的标记方法[J].印刷杂志,2004-11(224):53-55.
[27]吴云天,陈永常.Tiff格式在设计与印刷中的作用[J].包装工程,26(5):223-227.
[28]张沪寅.TIFF图像文件格式分析应用[J].计算机工程,武汉测绘科技大学计算机系.1994(s1).
[29]1-bit TIFF工作流程[EB/OL].龙江印刷网:http://www.dqcom.com/html/200606/11/183716523.htm,2006-6-11.
[30]Damiam.1 bit Tiff—数码纪元的菲林[J].大中华印艺网,印艺2006期/2001-02..
[31]Linus Lehnberg.Ink Key Presetting in Offset Priming Presses Using digital images of the plates[D].Sweden:Department of science and technology Institutionen for teknik och naturvetenskap,2002-05-21.
[32]CIP4.JDF Specification Release 1.2[EB/OL].http://www.cip4.org.,2004-05.
[33]CIP4.JDF Specification Release 1.3[EB/OL].http://www.cip4.org,2005-09.
[34](英)Mark Birbeck等著,裴剑锋,高伟,徐继伟等译.XML高级编程[M].北京:机械工业出版社,2002,277-308.
[35]刘筱霞,赵军.一种支持JDF工作流的软件框架的研究[J].包装工程,2007-06,28(6):85-89.
[36]柯自聪.AJAX开发简略(第二部分)[EB/OL].dev2dev~(TM):http://dev2dev.bea.com.cn/bbsdoc/20051114125.html,2005-11-14.
[37]Dr.Jurgen Schonhut.PPF 2Ink[EB/OL].INI-CCC Corporate Communication Center:http://www.ini graphics,net/ini-ccc,2003-09-05.
[38]江瑞璋.预放墨与控墨——该是张页机的标准配置了[EB/OL].崭新科技,支援前线:http://www.brainnew.com.tw/Article/ra2006/30aug/F_083006.asp,2006-8-30.
[39]江瑞璋.优质化印刷色彩控制研讨观摩会——CIP3/4墨控部份[EB/OL].崭新科技,支援前线:http://news.pack.net.cn/packtechnology/yqjs/2006-11/2006111109591653.shtml,2006-12-30.
[40]江瑞璋.技术交流:网络控墨卡介绍[EB/OL].慧聪网,印刷行业:http://info.printing.hc360.com/2006/11/10141661289.shtml,2006-11-10.
[41]李宝强.新技术的尴尬——从数字打样和油墨预置谈开来[J].印刷杂志,2007-02(251):47-49.
[42]Digital Information Ltd.Digital Preset with InkZone Feed the Press.http://www.digiinfo.com.
[43]Martin Mayer,Ladenburg(dE),Nikolaus Pfeiffer,Dover,NH(US).Method for presetting an ink feed in multi-color printing[P].United States Patent:US6742452B2,2004-06-01.
[44]Takaharu Yamamoto,Shigeo Murakami,Nobuhito Konara,Kuniharu Okuda,Kyoto(JP).Method of presetting ink[P].United States Patent:US6732645B2,2004-05-11.
[2]Linda.CIP4期待美好未来[EB/OL].中华印刷包装网:http://www.cpp114.com/html/200607/news _20060715911479787.shtml,2004-08-24.
[3]田永辉.墨控系统在报业印刷中的应用[J].今日印刷,2005-05:46-47.
[4]陈永.墨控系统在印刷中的应用[J].印刷杂志,2005-07(232):60-61.
[5]陆水华,窦连东.CIP4油墨预置系统在报业印刷中的应用[EB/OL].中国印刷企业网:http://www.yinshuaqiye.com/Article_Show.asp?ArticleID=3665.2007-3-20.
[6]CIP4系统:报业印刷者割舍不下的痛与爱[EB/OL].中印网(来源:中国印刷市):http://www.eprint.cn/html/3/20060815102906.htm,2006-08-15.
[7]宗义刚.印前数字化工作流程在国内外应用状况的对比分析[J].今日印刷,2006-02:2-4.
[8]蔡浩光.高宝公司和Rogler公司展示全部JDF工作流程[J].广东印刷,2005-01:72-73.
[9]李康.数字化流程一路走来[J].印刷杂志,2006-06(243):46-49.
[10]我国印刷企业应用JDF的调查分析报告[EB/OL].大中华印艺网,印艺专题(来源:慧聪网):http://www.cgan.net/edition/jdf/04102303.htm.
[11]李宝强.报纸印刷色彩控制诌议[J].印刷杂志,2007-05(254):21-24.
[12]刘五珍.打造报纸的数字化生产流程[J].印刷杂志,2004-09(222):14-15.
[13]董浙波.印刷工业的数字化工作流程剖析[J].广东印刷,2004-05:34-35.
[14]邝贤锋.JDF的剖析及应用研究[D].广州:广东工业人学,2005.
[15]罗如柏,李延雷,周世生.未来的数字化工作流程模式JDF+PDF[J].今日印刷,2006-02(234):77-78.
[16]余喜.数字化工作流程的关键技术—JDF概观[J].广东印刷,2003-04:35-36.
[17]杨萍,张天棚.从德鲁巴看JDF标准的发展[J].印刷质量与标准化,2004-06:9-11.
[18]罗如柏,周世生.JDF工作流程中的拼大版节点[J].包装工程,2006,27(2):259-263.
[19]吴跃卿,王民,郑军.平版胶印JDF工作传票分析及通讯接口开发[J].包装工程,2007-04,28(4):66-68.
[20]燕向晖.基于DOM/SAX的JDF实现机制的研究[D].武汉:武汉人学,2006.
[21]刘武辉,郭颖妤.数字印刷工作流程中的数据格式[J].印刷质量与标准化,2004-06:18-20.
[22]李雪蕾.面向JDF的数字化印刷工作流程[J].今日印刷,2003-05:26-29.
[23]范明,李华,杨静.手动油墨预置技术与应用[J].印刷杂志,2006-06(234):66-70.
[24]王尚伟.印刷油墨预设量的初步探讨[J].中国印刷,2006-07:90-93.
[25]刘武辉,郭颖妤.数字印刷工作流程中的数据格式[J].印刷质量与标准化,2004-06:18-20.
[26]徐敏,顾萍.Tiff格式的标记方法[J].印刷杂志,2004-11(224):53-55.
[27]吴云天,陈永常.Tiff格式在设计与印刷中的作用[J].包装工程,26(5):223-227.
[28]张沪寅.TIFF图像文件格式分析应用[J].计算机工程,武汉测绘科技大学计算机系.1994(s1).
[29]1-bit TIFF工作流程[EB/OL].龙江印刷网:http://www.dqcom.com/html/200606/11/183716523.htm,2006-6-11.
[30]Damiam.1 bit Tiff—数码纪元的菲林[J].大中华印艺网,印艺2006期/2001-02..
[31]Linus Lehnberg.Ink Key Presetting in Offset Priming Presses Using digital images of the plates[D].Sweden:Department of science and technology Institutionen for teknik och naturvetenskap,2002-05-21.
[32]CIP4.JDF Specification Release 1.2[EB/OL].http://www.cip4.org.,2004-05.
[33]CIP4.JDF Specification Release 1.3[EB/OL].http://www.cip4.org,2005-09.
[34](英)Mark Birbeck等著,裴剑锋,高伟,徐继伟等译.XML高级编程[M].北京:机械工业出版社,2002,277-308.
[35]刘筱霞,赵军.一种支持JDF工作流的软件框架的研究[J].包装工程,2007-06,28(6):85-89.
[36]柯自聪.AJAX开发简略(第二部分)[EB/OL].dev2dev~(TM):http://dev2dev.bea.com.cn/bbsdoc/20051114125.html,2005-11-14.
[37]Dr.Jurgen Schonhut.PPF 2Ink[EB/OL].INI-CCC Corporate Communication Center:http://www.ini graphics,net/ini-ccc,2003-09-05.
[38]江瑞璋.预放墨与控墨——该是张页机的标准配置了[EB/OL].崭新科技,支援前线:http://www.brainnew.com.tw/Article/ra2006/30aug/F_083006.asp,2006-8-30.
[39]江瑞璋.优质化印刷色彩控制研讨观摩会——CIP3/4墨控部份[EB/OL].崭新科技,支援前线:http://news.pack.net.cn/packtechnology/yqjs/2006-11/2006111109591653.shtml,2006-12-30.
[40]江瑞璋.技术交流:网络控墨卡介绍[EB/OL].慧聪网,印刷行业:http://info.printing.hc360.com/2006/11/10141661289.shtml,2006-11-10.
[41]李宝强.新技术的尴尬——从数字打样和油墨预置谈开来[J].印刷杂志,2007-02(251):47-49.
[42]Digital Information Ltd.Digital Preset with InkZone Feed the Press.http://www.digiinfo.com.
[43]Martin Mayer,Ladenburg(dE),Nikolaus Pfeiffer,Dover,NH(US).Method for presetting an ink feed in multi-color printing[P].United States Patent:US6742452B2,2004-06-01.
[44]Takaharu Yamamoto,Shigeo Murakami,Nobuhito Konara,Kuniharu Okuda,Kyoto(JP).Method of presetting ink[P].United States Patent:US6732645B2,2004-05-11.