用户名: 密码: 验证码:
胶印油墨预置机制与技术的研究
详细信息    本馆镜像全文|  推荐本文 |  |   获取CNKI官网全文
摘要
油墨预置技术是在印刷前,通过提取版面图文面积覆盖率分布的数据化信息和墨层厚度的定量要求,按照一定的方式转化为输出墨量要求后,再依此设置输出墨量。相对于传统的凭经验预置墨量,该技术具有输出墨量预置的准确性较高、减少试印的时间和材料浪费等优点。本文通过对油墨转移过程的分布特征进行深入的研究,提出一种油墨预置的新方法,以进一步提高油墨预置的精度。本文的主要贡献和创新点如下:
     1.利用输墨系统的计算机仿真方法,研究油墨转移过程中的分布规律,验证了只有一个墨区输出油墨时,输出的墨量值和承印物上各墨区的墨层厚度之间存在着正比例的关系;多个墨区分别输出油墨时,承印物上墨层厚度分布值是各墨区单独输出墨量时,承印物上墨层厚度分布值的线性相加等多项规律。
     2.针对一个墨区输出单位量的油墨,本文利用BP神经网络建立一定范围内各墨区的图文覆盖率分布和承印物上墨量分布之间的映射关系;然后读入实际印刷的版面覆盖率分布,利用训练好的BP网络,获得该墨区输出的油墨在承印物上的墨量分布向量,以此作为矩阵的一列,构建一个能定量地表达当前的图文面积覆盖率分布条件下的油墨流布特征。首次研究解决了印刷过程油墨流布特征的定量描述方法。
     3.利用油墨流布特征矩阵,从理论上证明由于输墨系统性能固有的局限性,在一定的图文覆盖率分布条件下,承印物上墨量可能无法达到均勻一致的要求。基于此,本文创新地使用矩阵的奇异值分解法,通过截断奇异值的方法,求取一种油墨预置值,在该设置条件下,能满足承印物上墨量与标准要求的误差均方根小于规定的要求。
     4.在上述研究的基础上,本文给出一种实现胶印油墨预置新的、完整的方法。首先利用印前数字文件,计算各墨区的图文面积覆盖率,并对网点面积的几何扩大进行补偿。然后利用训练好的BP神经网络,产生一个可以反映油墨流布特征的矩阵,釆用矩阵奇异值分解的方法,求得承印物上墨量分布近似标准要求条件下的墨斗辊输出墨量要求,再利用该值计算各墨区的墨键设置值。本方法的创新性在于,输出墨量预置值是根据特定条件下的油墨流布特征而获得,包含了油墨的回流和横向流动等油墨传递与转移特征对油墨预置的重要影响。根据本方法开发的胶印油墨预置系统已在多家印刷企业实现产业化应用,并取得良好的效益。
Ink preset is a process to set the output ink by the digital information of the imagecoverage on plate and the quantitative requirements of the ink film thickness. Compared withthe traditional method which relies on expeirence,this technology is of significant value for itsmore precise preset to spare the time of pirnting and reduce the waste of material. This paperstudies ink distirbution characteristic in the ink transfer process and gives a new method torealize the ink preset which can further improve the preset accuracy. The main contirbutionsand innovation points of this paper are summarized as follows:
     1. Based on the inking system computer simulation method,this paper have acomprehensively study on the laws of the ink transfer process. It's veirifed that when one inkzone output ink, a kind of direct proportion exists between the ink output value and ink layerthickness of each ink zone on the substrate; when a number of ink zones output ink respectively,the ink quantity distirbution on the substrate equals to the sum total of the ink quantity of eachink zone output separately; Etc.
     2. When one zone output a unit quantity ink, this paper use BP neural network to create themapping relationship between the image coverage rate of ink zones within a certain range andthe ink distirbution on the substrate. Then atfer reading the image coverage rate distirbution ofdigital prepress ifle, using the trained BP neural network, we can get the ink quantitydistirbution vector on the substrate, which is to be a column of the matirx and construct a matirxto express the ink distirbution characteirstics quantitatively under the conditions of the currentimage coverage rate distirbution. It is the first time to solve the quantitative description methodof ink distirbution feature in the pirnting process.
     3. By the ink distribution characteristics of the matirx, this paper theoretically proves thatfor the inherent limitation of the inking system,the ink quantity on the substrate can not achievethe desired uniform requirements under the condition of a given image coverage rate. Based onthis, this paper uses the matrix singular value decomposition method innovatively, by themethod of truncated singular value, obtain ink preset value which can meet the requirement thatthe root mean square errors of the ink quantity on the substrate and the standard is less than theprescirbed requirement.
     4. On the basis of the above research, this paper gives a new and integral method to realizethe ink preset. Firstly, calculate the image coverage rates of each ink zone rfom digital prepressfile, and compensate for the geometric expansion of the dot area; then use the trained BP neuralnetwork to produce a matrix which can reflect the distirbution characteristics of the ink; byusing the matirx singular value decomposition method, get the output ink value require of thefountain roller under the condition of the ink quantity distirbution on the substrate is approximate to the standard; after that use the value to calculate the ink preset value of each inkzone. The innovation of this method is that the output ink preset value is obtained based on theink distirbution characteirstics under the specific conditions, including the important inlfuenceof ink transfer characteirstics because of the ink backflow and axial movement. The developedoffset press ink preset system has been equipped by several pirnting companies and producedgood benefits.
引文
[1]科印传媒事业部.2007中国印刷业年度报告[M].北京:印刷工业出版社,2007(5): 81-108.
    [2]科印传媒事业部.2011中国印刷业年度报告[J].印刷技术,2011⑶:43-98.
    [3]罗兰.曼罗兰公布drupa2008参展方案[J].印刷杂志,2008(3): 105-106.
    [4] LloydRDejidas Jr., Thomas M.Destree.单张纸胶印机操作[M].北京:印刷工业出版社,2008:311-330.
    [5]邓文雷?我国印刷标准化工作的现状与发展[J].今日印刷,2005(7): 6-8.
    [6] HJ/2503—2011,环境标志产品技术要求印刷第一部分:平版印刷[S].
    [7] Peter Giriffn. Understanding and profiting rfom presetting[J]. The International Journal of NewspaperTechnology,2006(9):73-75.
    [8] Nikkanen,E. Why the offset lithographic process must be changed to meet print-on-demandrequirements with respect to color control[J]. TAGA process,1997:507-527.
    [9]中华人民共和国工业和信息化部.产业关键共性技术发展指南(2011) [Z],2011-07.
    [10] Helmut Kipphan. Handbook of print media-technologies and production methods [M].Springer-Verlag Berlin Heidelberg,2001:332-334.
    [11] 孙玉秋.印刷过程自动化[M].北京:印刷工业出版社,2007.
    [12] Helmut Kipphan. Handbook of print media-technologies and production methods [M].Springer-Verlag Berlin Heidelberg,2001:217.
    [13]滚珠丝杠网.樱井Oliver-66 SISIP系列胶印机特点初探[EB/OL]. http://www.trade-114.cn/html-ll/news-131132297781218-l.html.
    [14]荣华阳.胶印墨量自动控制[EB/OL]. http://www.keyin.cn/html/xinhuiyuanyonghufabuwenzhang/zhuanlan/201104/15-4835132_.shtml.
    [15]志岐正辉.印刷机的油墨量控制装置[P].中国专利:1575982, 2005-02-09.
    [16]平野正大.用于印刷机的油墨供应量调节方法和设备[P].中国专利:1772483,2005-11-14.
    [17]卡罗琳?加托,马丁 ?迈尔.印刷开始前最优化油墨配给[P].中国专利:1749005,2006-03-22.
    [18]濑岛淳.印刷机的油墨供应方法[P].中国专利:1575989, 2005-02-09.
    [19]亮剑.CIP3油墨预置新秀一DIPS生产测试记实[J].印刷质量与标准化,2008(3): 35—38.
    [20]宋奇,郭思嘉.InkZone-全新的印刷控墨系统解决方案[J].印刷杂志,2007(9): 64-68.
    [21]王尚伟.基于CIP3/4的卷筒纸墨控机制研究[D].武汉:武汉大学印刷与包装系,2007.
    [22]思科机电.PCS-Pirnt 墨量预置系统[EB/OL]. http://www.kingstartech.net/pdetails.asp?id=17,2009-01-04.
    [23]潍坊北大青鸟华光照排有限公司.华光印科油墨预置系统[EB/OL]. http://www.hgzp.com.cn/showproduct.asp?id=21,2009-01-04.
    [24]周淑娟,曹从军.关于CIP3油墨预设技术的探索[J].印刷质量与标准,2008(5): 38-40.
    [25] Zhang jiangyu’ Gao Lixin, Cui Lingli, Wang Yingwang, Li Xinghui. Research on HCL PrototypeDesign of Ink Automatic Control System for Offset Printer [J]. JOURNAL OF WUHANUNIVERSITY OF TECHNOLOGY,2006,28(2):772-776.
    [26] Linus Lehnberg.Ink Key Presetting in Offset Printing Press Using Digital Images of thePlates[D].Sweden:Department of Science and Technology,Linkoping University,2002.
    [27]范明,李华,杨静,何式昱和陆惟.报纸印刷的油墨预置方法[P].中国专利:1939724, 2007-04-04.
    [28]王尚伟?印刷油墨预设量的初步探讨[J].印刷世界,2007(09): 16-20.
    [29]王彩印.CIP3墨控机制及其生产应用研究[D].武汉:武汉大学印刷与包装系,2007.
    [30]叶微微.JDF数字化流程中油墨预置技术的研究[D].西安:西安理工大学印包学院,2008.
    [31] Neil Doherty, Durham. Ink Key Presetting System for Offset Printing Machines[P]. U.S.Pat:6477954,2002-11-12.P2] Werner Maier, Gerd Steiner, Josef Schneider. Method and apparatus for ink control and zonal[P].U.S.Pat:5170711,1991-01-23.
    [33] Chia-Lin Chu, Amit Sharma. Validating A Model-Based Ink Key Presetting System[A]. In: TechnicalAssociation of the Graphic Arts50th Annual Technical Conference[C].1998:335-370.
    [34] Chia-Lin Chu, J.Seymour. Model-based ink key presetting for offset presses[J]. TAGA proceeding,1997:474-487.
    [35]志岐正辉.印刷机的油墨量控制装置[P].中国专利:1575982, 2005-02-09.
    [36]平野正大.用于印刷机的油墨供应量调节方法和设备[P].中国专利:1772483,2005-11-14.
    [37]刘彩凤.基于神经网络的FRID标签天线印刷品质的优化研究[D].南京:南京林业大学化学工程学院,2009.
    [38] Cristofer Englund,Antanas Verikas. Ink flow control by multiple models in an offset lithographicprinting process[J]? Computers&Industrial Engineering. Jan,2008.
    [39] Lars Bergman, Antanas Verikas. Meddling and Control of the Web-Fed Offset Newspaper PrintingPress[J]. Computers&Industrial Engineering.2007,04.
    [40] Verikas, A.; Bergman, L.; Malmqvist, K.;ect.Neural modelling and control of the offset printingprocess[J]. Proceedings of the IASTED International Conference on Neural Networks andComputational Intelligence, Proceedings of the IASTED International Conference on Neural Networksand Computational Intelligence,2003: ppl30^135.
    [41] A.veirkas.etal. Advanced in computational intelligence-based pirnt quality assessment and control inoffset color printing, Exert System with Applications.2011(38)13441-13447
    [42] Jens Lunds*'tr om and Antanas Verikas, Detecting Haltfone Dots for Offset Print Quality AssessmentUsing Sotf Computing. Fuzzy Systems,2010:1-7.
    [43] Veirkasa, Bacauskieneb. Estimating ink density from colour camera RGB values by the local[J]Engineering Applications of Artiifcial Intelligence,2008,21(1):35-42.
    [44]张仁英.输墨装置自动预调的可能性与局限性[J].北京印刷学院学报,2000⑴:58-62.
    [45] Helmut Kipphan. Handbook of print media-technologies and production methods [M].Springer-Verlag Berlin Heidelberg,2001:335.
    [46] Liu Zhen, Fang Enyin. Research on the Method of Acquiring Ink Zone Control Tiff Images[A]. In: The6th International Conference on Imaging Science and Hardcopy[C], Zhangjiang:2008:73-75.
    [47]卡罗琳?加托,马丁?迈尔.印刷开始前最优化油墨配给[P].中国专利:1749005,2006-03-22.
    [48]林银桂.进墨量对胶印印刷品密度变化的影响[J].印刷世界,2003(1): 41-42.
    [49] Peter Giriffn. Understanding and profiting rfom presetting[J]. The International Journal of NewspaperTechnology,2006(9):58-62.
    [50] Cirstofer Englund,Antanas Verikas■Ink flow control by multiple models in an offset lithographicpirnting process[J].Computers&Industrial Engineering.2008(10):592-605.
    [51] Lars Bergman, Antanas Verikas. Meddling and Control of the Web-Fed Offset Newspaper PrintingPress[J].Computers&Industrial Engineering.2007(4):395-402.
    [52] Verikas, A., Malmqvist, K.,Bergman, L. Neural networks based colour measuring for processmonitoring and control in multicoloured newspaper printing[J]. Neural Computing andApplicaitons,2000,09:227-242.
    [53]徐锦林.印刷工程导论[M].北京:化学工业出版社,2006: 32-45.
    [54] Helmut Kipphan. Handbook of print media-technologies and production methods [M].Springer-Verlag Berlin Heidelberg,2001:55.
    [55]刘昕.印刷工艺学[M].北京:印刷工业出版社,2005:25-31.
    [56] Matsuki, Sadakatat. Tone and Color Reproduction in Offset Printing [J]. Annual Conference of theImaging Soceity of Japan,1998:387-390.
    [57] Adams, J.M., Faux,D.D.,and Reiber, L.J. Printing technology(Third Edition)[M]. Delmar PublishersInc,1988:35-65.
    [58] Nakauchi S,Usui S. Color gamut mapping on mutual color conversion by neural networks,In:Kasabov N et al.(eds) Progress in Connectionist-Based Information Systems, Vol.2. Springer-verlag,1997:1145-1148.
    [59]杜功顺.印刷色彩学[M].北京:印刷工业出版社,1995: 130-132.
    [60] A.Verikas, K. Malamqvist, L.Malmqnist, L.Bergman, A new method for color measurements in raphicarts[J]. Color Reaserch&Application,1999,24(3):185-196.
    [61] Tajima Shinsuke, Blondal Dan. The lithographic impact of microdot haltfone screening[J]. Journal ofImaging Society of Japan,2007:68-73.
    [62] KelvenTritton.印刷色彩控制手册[M].北京:印刷工业出版社,2005:37-50.
    [63]齐晓壁,周文华,刘江洁,杨永刚.印刷材料及适性实验指导书[M].北京:印刷工业出版社,2009.
    [64]冯瑞乾?印刷原理及工艺[M].北京:印刷工业出版社,1999: 61.
    [65] IGT测试系统公司,IGT Testing Systems [EB/OL]. http://www.igt.nl/CH/?rubriek=3,2010-08-16.
    [66]郑元林.印刷品质量检测与控制技术[M].北京:化学工业出版社,2010: 33-39.
    [67] Verikasa, Bacauskieneb. Estimating ink density rfom colour camera RGB values by the local[J]Engineering Applications of Artiifcial Intelligence,2008,21(1):35-42.
    [68]ROYS, BERNs.颜色技术原理[M].北京:化学工业出版社,2004:43-74.
    [69]小庄.如何计算平版油墨的厚度[J].印艺学会月刊,2003(6):25-30.
    [70]E.Atherton. The Relation of the Reflectance of Dyed Fabrics to Dye Concentration and the Instrumental Approach to Colour Matching[J]. Journal of the Society of Dyers and Colourists,1995,71(7):389-398.
    [71]熊光楞,王听.仿真技术在制造业中的应用与发展[J].系统仿真学报,1996(1):45-151.
    [72]吕雁.计算机仿真与建模技术综述[J].电子科技,2001(5):1-4.
    [73]Helmut Kipphan. Handbook of print media-technologies and production methods[M]. Springer-Verlag Berlin Heidelberg,2001:1085-1087.
    [74]吴旭光,杨惠珍,王新民.计算机仿真技术[M].北京:化学工业出版社,2008.
    [75]Alexopoulos C. A review of advanced method for simulation output analysis [J]. In Proceedings of the1994Winter Simulation Conference,1994:133-140.
    [76]吕雁.计算机仿真与建模技术综述[J].电子科技,2001(5):1-4.
    [77]柏子游,刘士伟.胶印机墨辊动态仿真模型研究[J].包装工程,2004,25(03):159-160.
    [78]Shem M.Chou, Ted Niemiro. Computer Simulation of Offset Printing:I. Effects of Image Coverage and Ink Federate[C]. TAGA,1996:523-547.
    [79]Shem M.Chou, Ted Niemiro. Computer Simulation of Offset Printing:II. Effects of Vibrator Oscillation and Image Layout[C]. TAGA,1997:94-118.
    [80]王忠于.胶印机输墨系统的性能分析和仿真研究[D].西安:西安理工大学印包学院,2006.
    [81]王伟鹏,武秋敏,武吉梅.胶印机输墨系统的动态性能研究[J].北京印刷学院学报,2007,15(04):42-45.
    [82]Shem M.Chou, Ted Niemiro. Computer Simulation of Offset Printing:I. Effects of Image Coverage and Ink Federate[C]. TAGA,1996:523-547.
    [83]Tominaga S. Color control of printers by neural networks[J]. Electronic Imaging1998,7(3):664-671.
    [84]J.R.Noriega, H.Wang, A direct neural-network control for unknown nonlinear systems and its application[J]. IEEE Trans Neural Networks,1998,9(l):27-34.
    [85]蒋宗礼.人工神经网络导论[M].北京:高等教育出版社,2001:15-24.
    [86]王文成.神经网络及其在汽车工程中的应用[M].北京:北京理工大学出版社,1998:21-26.
    [87]Martin T.Hagan, Howard B.Demuth, Mark H.Beale.神经网络设计[M].北京:机械工业出版社,2006:201-205.
    [88]朱凯,王正林.精通MATLAB神经网络[M].北京:电子工业出版社,2010:195-198.
    [89]Martin T.Hagan, Howard B.Demuth, Mark H.Beale.神经网络设计[M].北京:机械工业出版社,2006:201-205.
    [90]朱凯,王正林.精通MATLAB神经网络[M].北京:电子工业出版社,2010:195-198.
    [91]Hecht-Niels.Theory of the back propahation neural network[J].IEEE IJCNN,1989,(1):593-606.
    [92]史忠植.神经网络[M].北京:高等教育出版社,2009:56-63.
    [93]王志中,邵苇敏.方程病态程度的估计——病态准则[J].上海交通大学学报,1988(5):16-19.
    [94]朱杨明,王志中.病态矩阵判别的一种新方法[J].上海交通大学学报,1992(3):28~31.
    [95]上海财经大学应用数学系.高等代数[M].上海:复旦大学出版社,2008: 262-275.
    [96]何昌礼.解病态线性方程组的奇异分解法及其应用[M].武汉:中国地质大学出版社,1990:105-167.
    [97]苏金明,张莲花,刘波.MATLAB工具箱应用[M].北京:电子工业出版社,2004: 502.
    [98]车茂丰?现代实用印刷技术[M].上海:上海科学普及出版社,2001: 296-299.
    [99]冯昌伦.胶印机的使用与调节[M].北京:印刷工业出版社.2002: 296-338.
    [100]张海燕.印刷机设计[M].北京:印刷工业出版社,2006: 88-119.
    [101] Helmut Kipphan. Handbook of print media-technologies and production methods [M].Springer-Verlag Berlin Heidelberg,2001:301.
    [102]潘杰.现代印刷机原理与结构[M].北京:化学工业出版社,2003: 123-156.
    [103]谢普南.印刷设备[M].北京:印刷工业出版社,2006: 128-134.
    [104]冯瑞乾.印刷原理及工艺[M].北京:印刷工业出版社,1999: 47-51.
    [105]赫尔穆特?基普南[M].广州:广东世界图书出版公司,2004: 216.
    [106]齐福斌?卷筒纸胶印机[M].北京:印刷工业出版社,2006: 97-103.
    [107] Chia-Lin Chu,Brokifdld.Ink Key Control in A Printing Press including Lateral ink Saturation, andBack-lfow Compensation[P].U.S.Pat:6318260B1,2001-11-20.
    [108]苏钟.现代卷筒纸平版印刷技术[M].北京:印刷工业出版社,2007:80-82.
    [109] Shem M.Chou,Ted Niemiro. Computer Simulation of Offset Printing:in. Effects of Ink FeedMechanism[C]. TAGA,1998:335-370.
    [110]荣华阳.串墨机构的使用与调节[J].今日印刷,2004 (6):67-69.
    [111] Shem M.Chou, Ted Niemiro. Computer Simulation of Offset Printing:in. Effects of Ink FeedMechanism[C]. TAGA,1998:335-370.
    [112] Chia-Lin Chu, Amit Sharma. Validating A Model-Based Ink Key Presetting System[A]. In:Technical Association of the Graphic Arts50th Annual Technical Conference[C].1998:335-370.
    [113] Hammerstrom D.Working with neural networks[J]. IEEE Spectrum,1993(7):46-53.
    [114] Z.Trajanovski, W.Regittning, P.Watch,Simulation studies on neural predictive control of glucoseusing the subcutaneous route[J]. Computer Methods and Programs in Biomedicine,1998,56:133-139.
    [115] Cristofer Englund, Josef Kindberg. Offset print control[R]. Sweden: Halmstad University,2003:54-66.
    [116]面向MATLAB工具箱的神经网络理论与应用[M].合肥:中国科技大学出版社,1998: 73-83.
    [117]张德丰? MATLAB神经网络应用设计[M].北京:机械工业出版社,1998:91-113.
    [118]史瑞芝,任晓波,孙东振等.一种印刷机给墨量确定方法[J].测绘科学技术学报,2009,26(1):1?4.
    [119]张逸民,张跃明,张乃龙?利用PPF文件实现油墨预置技术的研究[J].包装工程,2010 (12):77-81.
    [120]宋臻垚.印刷业常用数据格式TIFF/IT与PPF[J].印刷杂志,2004 (2):52-54.
    [121]李超,王晓敏.解析基于CIP3标准的印刷生产格式PPF[J].数码印刷,2008 (12):59-63.
    [122] CIP4Organization. JDF Specification Version1.1Revision A [EB/OL].(2002209203) [2008203211] http://www.cip3.org
    [123]胡涛,段昀CMYK图像的TIFF格式存贮及编程实现[J].出版与印刷,2006(4):38-51.
    [124]Kelvin Tritton.印刷色彩控制手册[M].北京:印刷工业出版社,2006:98-103.
    [125]孙秋玉.提高印刷墨量控制数学模型精度的探讨[J].北京印刷学院学报,1999,7(3):21-24.
    [126]刘真,胡新月,杨华.基于Tollenar-Ernst模型的专色油墨墨量计算[J].包装工程,2010(11):27-30.
    [127]向阳,肖萍,卢谦和.胶印新闻纸油墨接受性能的初步研究[J].中国造纸,1995(04):15-18.
    [128]Verikas A, Malmqvist K, Bergman L. Neural networks based colour measuring for process monitoring and control in multicoloured newspaper printing [J].Neural Comput2000(9):227-242.
    [129]D.Tollenaar and P.A.H.Ernst. AdvaneesinPrinting ScieneeandTeehnology, Vol.2, W.H.BanksEd., Oxford, Pergamon,1962,214-224.
    [130]苏金明,张莲花,刘波.MATLAB工具箱应用[M].北京:电子工业出版社,2004:498-512.
    [131]Gass S I, Rapcsak T. Singular value decomposition in AHP [J].European Journal of Operational Research,2004,154(3):573-584.
    [132]Ma W Y. A practical approach to modifying pairwise comparison matrices [J]. System Science&System Engineering,1994,3(4):334-338.
    [133]田志友,吴瑞明,王浣尘.基于奇异值分解的权重计算、一致性检验与改进[J].上海交通大学学报,2005,39(10):1582-1586.
    [134]GB/T7705—2008,平版装潢印刷品[S].

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700