丝网印刷油墨配色研究
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摘要
近年来配色技术有了较快的发展,但是很多专业油墨配色软件都集中在胶印的油墨配色上,理论研究也大都建立在胶印基础上,专门的丝网油墨配色软件较少。这为丝网油墨配色带来很大的不便,再加上丝网印刷多数情况要用到专色实地,所以本文对丝网油墨配色进行研究。
本文研究的主要内容是结合Kubelka-Munk理论和色度学原理,建立丝网油墨配色模型。通过迭代法改善油墨配方,以提高配色精度,并对模型进行了优化,加速并进一步精确了配色过程,保证彩色原稿的忠实再现,并为配色技术提供理论和技术支持。
本文以印刷色彩学理论为依据进行油墨配色,根据实际中的丝网油墨的配色规律,把Kubelka-Munk理论和印品三刺激值计算公式结合建立丝网油墨配色数学模型,得到丝网油墨配色的初始配方,并对配方在Matlab中进行迭代改善,得到最终的配方。
按照丝网油墨配色实验设计,在手动丝网印刷机上进行人工配色。待油墨干燥后测量其反射率,并通过公式计算其k/s值。在Matlab中分析数据处理结果,结果表明当调配的青油墨的比例大时,调配出的油墨反射率和k/s值的线性变化较小,黄油墨的比例大时,调配出的油墨反射率和k/s值线性变化较大。本文根据调配油墨的反射率和k/s值的非线性变化对配色模型进行了优化,优化方法采用经验指数修正法,可以提高配方精度,加快油墨配方的迭代速度。
The color matching technology has developed rapidly in the recent years, but many professional software of color matching focus on the offset ink color matching, most of theoretical research is largely built on the offset, and there is fewer specialized screen ink color matching software. These bring a lot of inconvenience to the screen ink color matching; moreover, the spot color is used in the screen printing usually. The purpose of this paper is to study the screen ink color matching.
The main content of this paper was to combine the Kubelka-Munk theory with colorimetric theory, build model of the screen ink color matching, enhance the color accuracy by the iterative method, and improve the process of the color matching by optimizing the model. The manuscript color was reproduced truly. Theoretical and technical support was provided to color matching.
Based on the printing chromatics theory, matching color was done. Screen ink color matching model was established by combining kubelka-munk theory with printing tristimulus values formula, according to the disciplinarian in the actual screen ink color matching. The results was to get the initial formula of screen ink color matching, and amend formula by iterative in the Matlab for getting the final formula.
Matching color experiment was done in the manual screen printing machine according to the experimental design, measured reflectivity after ink drying and calculated its k/s value by formula, and anglicized the data in the Matlab. Results showed that the proportion of C ink was bigger, the linear change of the reflectivity and k/s value of prepared ink were smaller, the proportion of Y ink was bigger, the linear changed of the reflectivity and k/s value of prepared ink were bigger. The color matching model was optimized basing on the nonlinear change of reflectivity and k/s value of papered ink. The optimizing method was experiential exponent modified method. The formula accuracy could be improved, and the iterative speed could be picked up.
本文研究的主要内容是结合Kubelka-Munk理论和色度学原理,建立丝网油墨配色模型。通过迭代法改善油墨配方,以提高配色精度,并对模型进行了优化,加速并进一步精确了配色过程,保证彩色原稿的忠实再现,并为配色技术提供理论和技术支持。
本文以印刷色彩学理论为依据进行油墨配色,根据实际中的丝网油墨的配色规律,把Kubelka-Munk理论和印品三刺激值计算公式结合建立丝网油墨配色数学模型,得到丝网油墨配色的初始配方,并对配方在Matlab中进行迭代改善,得到最终的配方。
按照丝网油墨配色实验设计,在手动丝网印刷机上进行人工配色。待油墨干燥后测量其反射率,并通过公式计算其k/s值。在Matlab中分析数据处理结果,结果表明当调配的青油墨的比例大时,调配出的油墨反射率和k/s值的线性变化较小,黄油墨的比例大时,调配出的油墨反射率和k/s值线性变化较大。本文根据调配油墨的反射率和k/s值的非线性变化对配色模型进行了优化,优化方法采用经验指数修正法,可以提高配方精度,加快油墨配方的迭代速度。
The color matching technology has developed rapidly in the recent years, but many professional software of color matching focus on the offset ink color matching, most of theoretical research is largely built on the offset, and there is fewer specialized screen ink color matching software. These bring a lot of inconvenience to the screen ink color matching; moreover, the spot color is used in the screen printing usually. The purpose of this paper is to study the screen ink color matching.
The main content of this paper was to combine the Kubelka-Munk theory with colorimetric theory, build model of the screen ink color matching, enhance the color accuracy by the iterative method, and improve the process of the color matching by optimizing the model. The manuscript color was reproduced truly. Theoretical and technical support was provided to color matching.
Based on the printing chromatics theory, matching color was done. Screen ink color matching model was established by combining kubelka-munk theory with printing tristimulus values formula, according to the disciplinarian in the actual screen ink color matching. The results was to get the initial formula of screen ink color matching, and amend formula by iterative in the Matlab for getting the final formula.
Matching color experiment was done in the manual screen printing machine according to the experimental design, measured reflectivity after ink drying and calculated its k/s value by formula, and anglicized the data in the Matlab. Results showed that the proportion of C ink was bigger, the linear change of the reflectivity and k/s value of prepared ink were smaller, the proportion of Y ink was bigger, the linear changed of the reflectivity and k/s value of prepared ink were bigger. The color matching model was optimized basing on the nonlinear change of reflectivity and k/s value of papered ink. The optimizing method was experiential exponent modified method. The formula accuracy could be improved, and the iterative speed could be picked up.
引文
[1]郑德海,郑军明.丝网印刷工艺[M].北京:印刷工业出版社,2006(9):6-8.
[2]陈德山.调配专色丝印油墨基本原理[J].广东印刷,2004(4):36-37.
[3]武林.木材染色的计算机配色技术研究[D].北京:北京林业大学,2007:5.
[4]Jack A.Ladson.Communication and comments.Color research and application[J].2005(12),30(6):464-465.
[5]Emst Ganz.Problems of fluorescence in colorant formulation.Color research and application [J].1997,2(2):81-84.
[6]张红鸣,徐捷.实用着色与配色技术[M].北京:化学工业出版社,2001:241-253.
[7]郭倩倩.油墨配色理论与实验研究[D].西安:西安理工大学,2006:3.
[8]Robert T.Marcus,Kenny Thomas,Kim Galloway.Computer Color Formulation and Batch Correction Software State-Of-The-Art.Color learning.Html.http://www.datacolor.corn/color_experts 021006.sHtml.2004-11-3.
[9]薛朝华.颜色科学与计算机测色配色实用技术[M].北京:化学工业出版社.2004(1).54-58.
[10]周志华,曹村根.神经网络及其应用[M].北京:清华大学出版社,2004.1-35.
[11]Stephen Westland,Laura Iovine and John M Bishop.Kubelka-Munk or Neural Networks for Computer Colorant Formulation.9th Congress of the Intemational Color Association,Proceeding of SPI[C].2002,Vol.4421:745-748.
[12]X-rite.Color iMatch.[EB/OL].http://www.xrite.com.cn/product_overview.aspx?
[13]Datacolor.Datacolor650.http://www.datacolor.com/index.php?id=14.
[14]Ciba.Ciba ColibriTM Productline.http://www.cibasc.com/colibri.
[15]车江宁.有色纤维测配色的研究[D].西安:西安理工大学,2002:6.
[16]尹世同,孟耘.国产SRICI测色配色系统应用技术的研究.染整技术[J].1996,Vol.18(3):24-25.
[17]陈亚雄,金澜.一种基于分色测色的印刷油墨配色数学模型.北京印刷学院学报[J].1998:21-25
[18]刘俊杰.胶版印刷专色油墨的计算机配色方法[D].西安:西安理工大学,2005:3.
[19]高虎.塑料凹印专色油墨计算机配色的研究:[硕士学位论文][D].西安:西安理工大学.2006.
[20]王乐新,王喜昌.色差权重因子计算机配色方法研究.黑龙江[J].2006,Vol.27(5):121-123.
[21]周春霞,唐正宁.包装印刷专色油墨的计算机配色理论研究.包装工程[J].2006,Vol.27(5):121-123.
[22]Emst Ganz.Problems of fluorescence in colorant formulation.Color research and application[J].1997,2(2):81-84.
[23]周世生.高等色彩学[M].北京:印刷工业出版社.1997(8):111-117.
[24]许小文.印刷色彩配色理论研究与软件开发:[硕士学位论文][D].西安:西安理工大学.1991.
[25]郭凌华.蒙版方程在配墨中的应用研究.包装工程[J].2004,Vol.25(3):36-37.
[26]冯健.柔性版印刷呈色数学模型的建立及其应用研究:[硕士学位论文][D].西安:西安理工大学.2001.
[27]郑元林.柔性版四色印刷呈色数学模型的研究:[硕士学位论文][D].西安:西安理工大学.2002.
[28]李全臣.电脑配色系统CSL-1000的设计研究.光学仪器[J].1998,20(6):24-28.
[29]CM-型计算机测色配色系统.http://city.icchina.com/CommercialOrganization
[30]刘世昌.印刷品质量检测与控制[M].北京:印刷工业出版社.2000(5):72-73.
[31]周世生.印刷色彩学[M].北京:印刷工业出版社.2005(3):24-26.
[32]张逸新.数字印刷原理与工艺[M].北京:中国轻工业出版社.2007(6):189-202.
[33]胡成发.印刷色彩与色度学[M].北京:印刷工业出版社.1993.108-177.
[34]李佩成.怎样建立经验公式[M].西安:西安地图出版社.1996.13-16.
[2]陈德山.调配专色丝印油墨基本原理[J].广东印刷,2004(4):36-37.
[3]武林.木材染色的计算机配色技术研究[D].北京:北京林业大学,2007:5.
[4]Jack A.Ladson.Communication and comments.Color research and application[J].2005(12),30(6):464-465.
[5]Emst Ganz.Problems of fluorescence in colorant formulation.Color research and application [J].1997,2(2):81-84.
[6]张红鸣,徐捷.实用着色与配色技术[M].北京:化学工业出版社,2001:241-253.
[7]郭倩倩.油墨配色理论与实验研究[D].西安:西安理工大学,2006:3.
[8]Robert T.Marcus,Kenny Thomas,Kim Galloway.Computer Color Formulation and Batch Correction Software State-Of-The-Art.Color learning.Html.http://www.datacolor.corn/color_experts 021006.sHtml.2004-11-3.
[9]薛朝华.颜色科学与计算机测色配色实用技术[M].北京:化学工业出版社.2004(1).54-58.
[10]周志华,曹村根.神经网络及其应用[M].北京:清华大学出版社,2004.1-35.
[11]Stephen Westland,Laura Iovine and John M Bishop.Kubelka-Munk or Neural Networks for Computer Colorant Formulation.9th Congress of the Intemational Color Association,Proceeding of SPI[C].2002,Vol.4421:745-748.
[12]X-rite.Color iMatch.[EB/OL].http://www.xrite.com.cn/product_overview.aspx?
[13]Datacolor.Datacolor650.http://www.datacolor.com/index.php?id=14.
[14]Ciba.Ciba ColibriTM Productline.http://www.cibasc.com/colibri.
[15]车江宁.有色纤维测配色的研究[D].西安:西安理工大学,2002:6.
[16]尹世同,孟耘.国产SRICI测色配色系统应用技术的研究.染整技术[J].1996,Vol.18(3):24-25.
[17]陈亚雄,金澜.一种基于分色测色的印刷油墨配色数学模型.北京印刷学院学报[J].1998:21-25
[18]刘俊杰.胶版印刷专色油墨的计算机配色方法[D].西安:西安理工大学,2005:3.
[19]高虎.塑料凹印专色油墨计算机配色的研究:[硕士学位论文][D].西安:西安理工大学.2006.
[20]王乐新,王喜昌.色差权重因子计算机配色方法研究.黑龙江[J].2006,Vol.27(5):121-123.
[21]周春霞,唐正宁.包装印刷专色油墨的计算机配色理论研究.包装工程[J].2006,Vol.27(5):121-123.
[22]Emst Ganz.Problems of fluorescence in colorant formulation.Color research and application[J].1997,2(2):81-84.
[23]周世生.高等色彩学[M].北京:印刷工业出版社.1997(8):111-117.
[24]许小文.印刷色彩配色理论研究与软件开发:[硕士学位论文][D].西安:西安理工大学.1991.
[25]郭凌华.蒙版方程在配墨中的应用研究.包装工程[J].2004,Vol.25(3):36-37.
[26]冯健.柔性版印刷呈色数学模型的建立及其应用研究:[硕士学位论文][D].西安:西安理工大学.2001.
[27]郑元林.柔性版四色印刷呈色数学模型的研究:[硕士学位论文][D].西安:西安理工大学.2002.
[28]李全臣.电脑配色系统CSL-1000的设计研究.光学仪器[J].1998,20(6):24-28.
[29]CM-型计算机测色配色系统.http://city.icchina.com/CommercialOrganization
[30]刘世昌.印刷品质量检测与控制[M].北京:印刷工业出版社.2000(5):72-73.
[31]周世生.印刷色彩学[M].北京:印刷工业出版社.2005(3):24-26.
[32]张逸新.数字印刷原理与工艺[M].北京:中国轻工业出版社.2007(6):189-202.
[33]胡成发.印刷色彩与色度学[M].北京:印刷工业出版社.1993.108-177.
[34]李佩成.怎样建立经验公式[M].西安:西安地图出版社.1996.13-16.