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典型油墨挥发气体成分研究综述_印刷工程专业论文范文
印刷工程专业论文范文 目 录 中文摘要I 英文摘要II 目录III 1.绪论1 1.1研究意义及背景1 1.2研究的主要内容2 2.油墨的组成和分类3 2.1油墨的组成3 2.2油墨的结构9 2.3油墨的分类9 2.4油墨的生产和制造工艺10 3.气体成分检测技术12 3.1固相微萃取技术13 3.2固相微萃取的设计13 3.3固相微萃取结合高效液相色谱的应用14 3.4纤维的选择14 3.5萃取方式的选择15 3.6萃取的优化15 3.7应用举例16 4油墨挥发气体成分及对人体的危害18 4.1 各种印刷方式中挥发性有机污染物排放特性18 4.3国际上关于甲苯对人体危害的研究22 5.控制措施31 5.1防治现状31 5.2基本防治措施31 5.3特殊物质的防治32 5.4新技术的开发与应用33 5.5环保油墨35 6.总结与展望37 致 谢38 参考文献39 摘 要: 目前环境污染已经成为阻碍印刷业可持续发展的重大问题，其中典型油墨挥发气体的有机挥发物（VOC）及其毒性也越来越受到人们的关注, 油墨作为印刷中最重要最常用的物质，人们对其挥发气体中所含有的成分以及对人体的危害尚未有系统的归纳和总结。当前国内的研究主要针对印刷品表面残留有机挥发物，同时有关有机挥发物对人体影响的文章也比较匮乏。本论文旨在系统地获得目前典型油墨的挥发成分的研究现状，并予以分析和概括。文章首先从油墨的组成和结构入手进行分析得知,有机挥发物的主要来自油墨的连结料。随后介绍了常用的气体成分检测的技术和方法（固相微萃取技术和气相色谱法），用于检测油墨中有机挥发气体的成分。接着介绍了油墨挥发气体的主要成分及其危害，其中着重介绍了国际上针对甲苯对印刷工人身体影响的研究（包括遗传学、颜色视觉、神经反应等方面）。最后根据印刷厂有毒挥发物的防治现状，提出了相应的防治措施，并且倡导大量使用环保油墨。 关键词： 油墨挥发气体 固相微萃取 甲苯 染色体断裂 颜色视觉 环保油墨 Abstract： At present the environmental pollution has become an important issue which hinders the sustainable development of the printing industry. Especially typical ink volatile gases VOC and their influence on people has attracted more and more attention .Though ink is the most important and common substance in the printing process, its volatile gas components and effects on people has not been systematically summarized and concluded. Currently in our country the studies primarily intended to research on the surface residue VOC of printing products, while essays on the effects of VOC on human health were comparatively deficient. This article aims to systematically obtain the current researches on typical ink volatile components and make analysis and conclusion about them. At first through analysising ink's composition and structure, it’s concluded that VOC come mainly from the ink binders. Then common gas detection technologies and methods were introduced (like solid phase micro-extraction and gas chromatography), which were used to detect ink organic volatile gas components. After that some major components of volatile gases and their hazards was described, which focuses on international studies on toluene’s effects on people (including Genetics, Color vision and Neurobehavioral performance).Finally, based on the current situation of controlling toxic volatile compounds ,some corresponding measures were recommended and extensive use of green ink was promoted. Keywords: Ink vapors; Solid-phase micro extraction; Toluene; Color vision; Chromosome aberrations; Green ink
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现代胶印质量控制的研究——测控条的研究及设计_印刷工程专业论文
印刷工程专业论文范文 目 录 摘 要Ⅰ AbstractⅡ 1 课题背景与意义1 2 课现代胶印质量控制的介绍2 2.1 印刷质量控制的现状2 2.2 胶印质量控制的定义2 2.3 印刷品质量控制的要素2 2.4 常见的印刷品质量的评价方法与检测技术4 3 测控条在胶印质量控制中的作用及应用5 3.1 印刷测控条5 3.2 常用测控条的介绍及比较7 3.3 测控条使用须知13 4 测控条的设计与制作15 4.1 设计思路15 4.2 各种测控条的分布、意义及部分制作方法15 5 胶印质量控制的前景展望21 6 结 论22 致 谢23 参考文献24 附录1 实物图25 摘 要：本文结合现代胶印的特点，对现代胶印质量控制的方法、实现途径进行学习研究。重点研究了印刷测控条在胶印质量控制中的使用及作用，对各类测控条进行比较分析。运用所学知识，并在实地走访企业的基础上，理论联系实际整理设计了一套较完整，适合各类平版胶印使用的测控条组。 该测控条组主要由三个区段组成，分别为晒版测控条区段、套准测控条区段以及印刷测控条区段。其中晒版测控条区段为晒版测试块和一组分辨力测试线；套准测控条区段包括陷印测试表和一个由圆和十字线组成的图形；印刷测控条区段由星标和一组不同颜色和网点百分比的色块组成。 关键词：胶印；质量控制；测控条 Abstract：In this paper, the characteristics of modern offset printing, offset printing to modern quality control methods, ways to achieve study. Focused on monitoring and control article in the offset printing quality control of the use and effect on all types of comparative analysis of measurement and control article. The use of the knowledge and enterprise in the field visits on the basis of the theory with practice and finishing a more complete design for all types of monitoring and control be offset lithography. It is mainly composed of three sections, namely section buming be monitoring, measurement and control registration Article Article Measurement and Control section, as well as the printing section. Article buming section of which is monitoring the test buming resolution block and a set of test lines; registration Article monitoring test sections include trapping and a round table and the graph lines cross; printing section by section measurement and control and a group of stars of different colors and color composition percentage points. Keywords: Offset；Quality Control；Measurement and Control Article
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光谱测量方法研究_印刷工程专业论文范文
印刷工程专业论文范文 目 录 中文摘要：I 英文摘要:II 目 录III 1 绪论1 1.1 光谱测量方法研究的背景1 1.2 光谱测量方法研究的意义1 1.3 研究的主要任务与目标1 2 光谱测量原理及其实现方法3 2.1 光谱测量原理3 2.2 光谱测量实现的方法及其原理5 2.3 分光光度测量方法及光度计原理7 3 光谱测量实验11 3.1 测量条件11 3.2 测量数据11 3.3 根据实验所得的Lab值制图17 3.4 测量数据误差分析及处理方法20 4 结论24 致谢25 参考文献26 摘要：颜色测量是实现颜色控制的重要手段，为了实现精确的颜色测量，目前比较看好的一个方向就是基于光谱的测量原理。本次论文围绕光谱测量方法研究来展开，通过对光谱测量的基本原理来了解相关光学的基本原理，掌握光谱测量实现的方法以及其工作原理，研究光谱测量的精度影响因素其控制方法，得出系统的实现精确光谱测量的方法，从根本上对光谱做一个系统分析，对光谱测量方法有了更进一步的了解和深化。 关键词：颜色测量；颜色控制；光谱测量；系统分析 Abstract: Color measurement is an important means to achieve the color control, in order to achieve accurate color measurement, the relatively optimistic about the direction of a measurement principle is based on the spectra. This paper studies around the spectral measurements started, through the basic principles of spectral measurement to understand the basic principles of optics-related master the spectral measurement methods to achieve, as well as its working principle, the spectral measurement of the accuracy of the factors affecting its control method, derived System for accurate spectral measurement methods, Spectrum from the fundamental right to make a systematic analysis of the spectral measurements with the further understanding and deepening. Keywords: Color measurement; color control; spectral measurements; system analysis
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纸张性能对印刷品呈色范围的影响的研究_印刷工程专业论文
印刷工程专业论文范文 目 录 摘 要Ⅰ AbstractII 目 录III 1 绪论1 1.1 研究的课题背景1 1.2 研究课题的提出及研究的主要内容2 2 颜色的两种属性与色彩评价方法3 2.1 颜色的两种属性3 2.2 色彩评价方法3 3 CIE XYZ色空间5 4 纸张的基本性能6 4.1 平滑度6 4.2 纸张的油墨吸收性能7 4.3 纸张的光泽度9 4.4 纸张的白度和颜色9 5 实验方案11 5.1 实验目的与要求11 5.2 实验的基本内容11 5.3 实验仪器与素材11 6 实验结果12 6.1 实验数据12 6.2 实验数据处理与分析13 6.3 实验误差分析和存在的缺陷14 7 结论与展望16 7.1 结论16 7.2 展望16 致 谢17 参考文献18 摘 要：纸作为印刷的主要原材料，它的性能如何，决定印刷墨色的质量。只有性能好的纸张，才能获得较好的印品呈色效果。所以，正确认识纸张性能与印品呈色的关系，根据印刷产品、工艺条件特点，合理选择纸张进行印刷，对提高产品质量具有重要的现实意义。 本课题研究纸张的表面性能与印刷品呈色范围的关系。检测了80g/胶版纸和108g/铜版纸的一些纸张性能，包括白度、平滑度、光泽度吸收性和吸收等参数，用彩色反射密度计测量了两种纸张印样各色实地块处的XYZ三刺激值，根据三色坐标的计算公式，计算得到x、y色度坐标，绘制了两种印样的色域图。实验结果表明，当印刷条件相同时，由于铜版纸具有较高的平滑度、白度、光泽度和较小的吸收性，其所能表现的呈色范围较大；而胶版纸的平滑度、白度、光泽度均低于铜版纸，吸收性较大，其所能表现的呈色范围较铜版纸小。本文实验结果对评价印刷用纸质量及提高印刷品的呈色范围具有一定的参考价值，在实际生产中可以作为指导生产的依据。 关键词：纸张性能 ；XYZ三刺激值；色度坐标；呈色范围 Abstract: As the main raw material for printing , paper`s performance is the key reason to the quality of printing ink .And only paper which has good performance can has better printing quality. So it is necessary to know the relationship between the paper`s performance and color effect .And we can be reasonable to select paper based on the product and printing technology. This is meaningful to improve the product quality. This issue discusses the relationship between the paper`s performance and the color gamut..The samples of offset paper and chrome paper were chosen and measured ,including whiteness, smoothness gloss and absorbability. And the two samples were printed with the same printing machine. The tristimulus values (X,Y and Z) of solid areas were tested. Chromatic diagram were drawn after data analyzing and processing ,and then the influence of paper performance on gamut of color was analyzed. The result shows that greater color range occurred because of higher smoothness, gloss ,whiteness and lower absorbability to chromatic paper when the printing conditions were definite . Key Words: Paper performance; XZY tristimulus values; chromatic coordinates；color range
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G7标准测试版的研究_印刷工程专业论文范文
印刷工程专业论文范文 目 录 中文摘要：I 英文摘要.II 目 录III 1 绪论1 1.1 研究背景1 1.2 研究的基本内容2 1.3 使用测试版的目的2 2 G7标准测试版的研究3 2.1 G7标准测试版的第一部分的研究3 2.2 G7标准测试版的第二部分的研究4 2.3 测控条的基本测试块及控制参数5 3 测试版的组成元素8 3.1 阶梯条9 3.2 实地密度条9 3.3 星标9 3.4 梯尺10 3.5 灰平衡条10 3.6 ISO SCID图像11 3.6.1 ISO标准图-室内11 3.7 G7P2P25X3测控条13 3.8 IDEAlliance ISO12647-7控制条14 3.9 哈奇颜色灰船14 3.10 40%CMYK的色彩条14 3.11 实地的CMYK色彩条14 3.12 80％的CMYK色彩条14 3.13 RGB和CMY的彩色梯度条15 4 设计方案16 4.1 设计预期结果16 4.2 设计具体步骤16 5 总 结17 致 谢18 参考文献19 摘 要：在印刷复制过程中，油墨叠印后得到的中性灰色往往容易产生色偏。然而人眼对中性灰色十分敏感，稍有偏差就会察觉，所以中性灰平衡常常被作为控制色彩稳定性的重要手段。 G7工艺就是以控制灰平衡为主的一种新的印刷工艺方法，其目的就是要在CTP 的协助下，最终实现商业胶印的同貌效果。G7工艺的出现，为印刷的复制工艺又提升了一个新的台阶。为配合G7工艺更好地进行彩色复制，G7测试版便成为其最重要的检测工具。G7测试版以其多元化的设计，全方面检测印刷复制过程中所会出现的问题。 本课题通过对G7印刷测试版的各部分内容全面解析，并与传统印刷测试版进行功能比较，分析各自优势和各自的控制要点，最后将结合各自优势，把现有的G7印刷测试版进行进一步改进，为今后G7工艺的研究奠定理论和实践基础，最终更加提高印刷复制水平。 关键词：G7工艺；G7标准测试版；传统印刷测试版；灰平衡 Abstract: During the printing reproduction, accurate color reproduction can not be reproduced and neutral gray overprinted always has color slanting. However, the human eye is very sensitive to the neutral gray and a little color slanting can be aware. Therefore, neutral gray balance is often as an important means of controlling color stability. G7 process is the main method of a new printing technology to control gray balance. Its purpose is to help in the CTP and ultimately to effect of the same appearance in the commercial offset. With G7 process occurs, the print reproduction process has raised a new level. In line with the G7 process to better color reproduction, G7 test form will become the most important detection tool. With G7 test form's diversified design; it tests all aspects of reproduction problems in the process of printing that would arise. This article will comprehensively analyze every part of G7 test form and compare with the traditional printing test form. Then, analyze their strengths and their respective control points. Finally combine their respective strengths to improve the current test form of G7 printing. It will lay the theoretical and practical basis for the future G7 technology and improve the final print copy level. Key words: G7 process; G7 standard test form; traditional printing test form; gray balance
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印刷工艺控制方法研究_印刷工程专业论文范文
印刷工程专业论文范文 中文摘要I 英文摘要.II 目 录III 1 绪论1 1.1 引言1 1.2 课题背景及意义1 1.3 三种印刷工艺控制方法综述2 2 实地密度控制方法的研究4 2.1 实地密度控制方法原理4 2.2 实地密度控制方法6 3 网点扩大曲线控制方法的研究8 3.1 网点扩大曲线控制方法原理8 3.2 网点扩大曲线控制方法8 4 G7工艺控制方法的研究16 4.1 G7工艺控制方法原理16 4.2 G7工艺控制方法16 5 总结和展望20 5.1 三种控制方法的总结20 5.2 新的控制方案的提出和标版的制作20 致 谢23 参考文献24 摘 要：目前，我国印刷行业为提高印刷品质量而思索的办法不计其数。本文从优化印刷工艺的角度入手，主要探讨了三种印刷工艺控制方法，包括实地密度控制方法，网点扩大曲线控制方法和G7工艺控制方法。文章通过交代印刷工艺控制的必要性与急迫性，确定了选题的背景和意义，然后采用实验的方法，对印刷测试版进行实地密度，各色网点扩大值和灰平衡的测量，并通过将这些数据与我国印刷行业标准数据进行对比，从而发现三种控制方法的优点和局限性。本次课题最后结合以上各个章节对三种控制方法的分析，通过制作印刷控制版的方法，将三种控制方法简单有效的利用到平时的印刷工艺控制上。本文特别介绍了G7工艺，并将这个控制方法与传统印刷测试版相结合，检验了G7工艺控制印刷灰平衡的准确性。总的来说，文章通过对印刷工艺控制方法的细致研究针对目前的控制方法提出改进方法，对我国印刷行业印刷品质量的提高起到一定的技术指导意义。 关键词：印刷工艺；实地密度；网点扩大曲线；G7工艺 Abstract: At present, the printing industries of china are thinking many ways to improve print quality .This article start from optimizing the printing process. Mainly discusses the three printing process control method. Including Solid Ink Density, dot gain curve control method and G7 process control methods. The article explained the need to control the printing process and urgency, and then identify the background and meaning of this theme. Then mean sure Solid Ink Density、dot gain value and gray balance by experimenting. Then from contrasting Empirical data and standard to appraise these control methods, to find their advantage and disadvantage. At length , the author make use of these control methods to printing process in normal times by the method of factoring Printing beta combine with each chapter. This article introduces G7 process especially, and combines this control method with traditional printing beta to test the accuracy this control method. All of all, this article advance improving method by studying these control method, and it make it shortcut to improve the printing quality in our country. Keywords: Printing process; Solid Ink Density; Dot gain; G7 process
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莫尔条纹防伪印刷技术探讨_印刷工程专业论文范文
印刷工程专业论文范文 目 录 中文摘要I 英文摘要.II 目 录III 1 绪论1 1.1 研究的背景与意义1 1.2 研究现状及内容2 1.3 论文结构3 2 莫尔纹的理论分析与研究4 2.1 莫尔纹的一般表达式的推导4 2.2 印刷中龟纹计算公式的推导5 3 莫尔条纹的影响因素的分析与研究7 3.1 源图案叠合角度的变化对莫尔纹的影响7 3.2 源图案频率的变化对莫尔条纹的影响8 3.3 源图案形状的变化对莫尔纹的影响9 4 莫尔条纹防伪的基本图案设计11 4.1 利用莫尔条纹的放大特性进行防伪11 4.2 利用线段组的组合形成的莫尔条纹进行防伪13 4.3 利用图案编码进行莫尔纹防伪15 5 莫尔纹防伪技术与其他防伪技术的结合18 5.1 莫尔纹防伪技术与激光全息防伪技术的结合18 5.2 莫尔纹防伪技术与油墨防伪技术的结合19 5.3 莫尔纹防伪技术与防伪位置的结合19 6 总结与展望20 6.1 总结20 6.2 创新之处20 6.3 不足之处20 6.4 展望21 致 谢22 参考文献23 摘要：在假冒伪劣商品的压力下，我们一直寻求着新的防伪技术。莫尔条纹以其自身的优越性出现在我们的视线中，成为我们所关注的焦点。本文首先利用几何分析法对莫尔纹理论进行分析和研究，得出莫尔纹的产生机理和印刷中龟纹的计算公式。然后，结合莫尔条纹基础理论与实践，得出影响莫尔条纹变化的几个因素，如源图案叠合角度的变化对莫尔纹的影响、源图案频率的变化对莫尔条纹的影响、源图案形状的变化对莫尔纹的影响和源图像微结构的变化对莫尔纹的影响。最后，研究了莫尔条纹防伪图案的设计方法，总结了莫尔条纹防伪图案设计方法的类型，如利用莫尔条纹的放大特性进行防伪、利用线段组的组合形成的莫尔条纹进行防伪、利用源图案编码进行莫尔纹防伪，并给出了这几种类型的效果图。 关键字：莫尔纹；防伪；源图像；叠合；网板 Abstract: Under the attack of counterfeit goods, we are always seeking new anti-counterfeiting technology .For its superior advantages, the moiré pattern came into our views and became the focus of the public. Firstly a deep analysis and research of the moiré pattern through Geometric analysis was provided in this article, in conjunction with the mechanism of its production as well as its equations in printing. After that , through integrating with the practice, the main factors that affects the moiré pattern was discovered, such as the fit angles , frequency, shape and microstructure of the original pictures. Finally, this article discussed the design principle of the moiré security pattern, and the different patterns about it were concluded with impression drawings. Such patterns for security mainly included zoom behavior, composing and coding. Keywords: moiré；anti-counterfeiting；superimposed；source pattern；optical
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印刷品质量检测与控制CAI建设_印刷工程专业论文范文
印刷工程专业论文范文 目 录 摘 要I AbstractII 目录III 1. 绪论1 1.1 CAI建设的作用和意义1 1.2 课件制作的内容和意义1 1.3 CAI建设内容2 2. 印刷工程专业对课程的要求3 2.1 教学计划4 2.2 教学内容5 2.3 参考教材9 3. 课件的制作10 3.1 软件及设备11 3.2制作方法及步骤12 4. 结论14 致谢15 参考文献16 附件1：幻灯片样张17 摘 要: 印刷品质量检测与控制CAI的建设运用了POWERPOINT软件作为制作课件的主要软件，通过PHOTOSHOP以及扫描仪软件来制作相关的图片，将文字与图片合理的结合，运用POWERPOINT自带的动画与动作效果，丰富其内容。最终建立以个图文并茂，有声有动的课件，达到吸引学生注意力，加深学生相关理论知识要点的目的。通过课件的制作，更加了解POWERPOINT，PHOTOSHOP等软件以及扫描仪的操作。将CAI建设有利于印刷专业教师的教学，能够提高该课程的教学效果。 关键词：CAI；POWERPOINT；制作 Abstract：Print quality inspection and control of the construction of CAI software used for the production of courseware POWERPOINT major software and PHOTOSHOP scanner related software to produce images, text and pictures will be a combination of reasonable use POWERPOINT own animation and motion effects, rich in its contents. In the final establishment of the aid of diagrams, audio courseware has moved to attract students to the attention of the relevant theoretical knowledge to enhance the students the purpose of the main points. Through the courseware production, a better understanding of POWERPOINT, PHOTOSHOP, such as software and scanner operation. CAI building will be conducive to the printing professional teachers, to improve the teaching effectiveness of the course. Keywords: CAI； powerpoint；production
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PS版晒版工艺规范及耐印力影响因素的探讨_印刷工程专业论文
印刷工程专业论文范文 目 录 中文摘要I 英文摘要II 目 录III 1 绪论1 1.1 研究的背景和意义1 1.2 研究的主要内容2 2 PS版晒版工艺规范3 2.1 PS版晒版工艺流程3 2.2 PS版晒版环境4 2.3 PS版晒版工艺规范5 2.4 晒版工艺规范实例17 3 耐印力的影响因素20 3.1 耐印力20 3.2 PS版的生产晒制过程对耐印力的影响20 3.3 印刷过程对耐印力的影响22 3.4 印刷机械设备对耐印力的影响24 3.5 印刷材料对耐印力的影响25 4 结论与展望27 致 谢28 参考文献29 摘 要：晒版作为制版与印刷的桥梁工序，在整个复制工艺中起着十分重要作用，它的质量好坏直接影响着印品质量和印刷效率。为了减少晒版过程中发生的变化，使其保持稳定，就有必要对印刷的适应性、晒版操作工艺、版材感光性能、图像转移数据等控制在制版印刷工序整体规范数据之中，保证顺利而良好地完成复制再现。晒版存在着许多问题，因此，当前强化晒版工艺规范化、数据化质量管理，达到稳定和优化晒版的质量是一项迫切而重要的工作。 在印刷过程中，印版耐印力是需要控制的重要因素，耐印力的高低是决定印刷质量好坏的重要条件之一，直接影响着印刷的完整性和清晰性，决定印刷产品是否能忠实还原原稿以满足客户提出的要求。同时，印版耐印力的高低直接关系到胶印生产的经济效益，同时也是降低生产成本、提高产量、保证印刷质量的重要条件。因此，对晒版工艺规范和耐印力的研究对提高印品质量有着重要意义。 关键词：PS版；晒版；耐印力 Abstract: As a bridge between platemaking and printing,printing down plays an important role in the replication process.It’s quality impacts on the printing quality and printing efficiency.In order to reduce the changes that occur during printing down and keep it stable,it is necessary to control printing adaptability, operation process of printing down, material photosensitivity, data of image transfer in the overall datas of platemaking and printing processes,making sure accomplishing the replication successfully and well.There are lots of problems in the printing down,thus,it’s an urgent and important job to intensify quality management of standardization and normalization. In the printing process,print run is a vital factor to controland also one of the important condition to decide printing quality.It affects integrity and clarity of printing,decide whether the printing products can satisfy clients’ requirement.Meanwhile,print run influence the benefit of production.besides,it can reduce product costs,increase production,ensure printing quality.Therefore,research on printing down and print run has significance to increase production quality. Keywords：Presensitized;Plate;printing down;print run
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基于CTP的图像阶调最佳 再现方法研究_印刷工程专业论文
印刷工程专业论文范文 目 录 中文摘要I 英文摘要II 目录III 1. 绪论1 1.1 研究的背景1 1.2 研究的内容1 1.3 研究的意义2 2. 阶调的最佳复制3 2.1 阶调复制的重要性 3 2.2 阶调复制的复杂性3 2.3 阶调复制压缩的必要性4 2.4 阶调复制曲线6 3. 最佳阶调复制的计算方法12 3.1 黑白图像的最佳阶调复制12 3.2 彩色图像的最佳阶调复制17 4．CTP的图像阶调最佳再现22 4.1 实验方案22 4.2 实验数据23 4.3 结论分析23 5．总结与展望25 5.1 总结25 5.2 展望25 致谢26 参考文献27 摘 要：由于印刷数字化工艺流程的需要以及印刷高速化、快速化和个性化的发展使直接制版（CTP）技术得到越来越广泛的应用，为了解决运用CTP技术的印刷过程中阶调再现不理想的状况，通过研究印刷过程中图像阶调最佳再现方法和阶调复制结果。收集浙江日报、影天、新华三家公司的CTP印刷样张，通过实验分析、测量和绘制阶调复制曲线。分析影响图像阶调复制的因素，提出直接制版技术下印刷图像阶调复制方法和注意事项。有利于提高CTP图像阶调再现质量。 关键词：CTP ; 印刷质量; 阶调再现 Abstract: As the needs of digital printing process as well as the high speed of printing, quick and personalized development make the CTP technology widely. In order to solve the problem that using CTP technology press intermediate transfer status to reproduce is not ideal, through research for printing the image histogram best reproduction methods and halftoning copy results. Collect CTP printing proofs from Zhejiang daily, Yingtian, Xinhua three companies, india through the experimental analysis by studying, measuring and mapping tone reproduction curve. Analysis on the image element tone reproduction. Analyzing the image histogram replication factors put forward to plate technology by printing the image histogram replication method and considerations. It can help improve the CTP quality image histogram reproduction. Keywords：CTP; print quality; tone reproduction
