G7在我國印刷企業中的應用研究

印刷工程論文編號:YS066  論文字數:15676.頁數:32

目  錄
摘  要 I
目  錄 III
1  緒論 1
1.1  引言 1
1.2  研究現狀與趨勢 3
1.3  研究內容 3
1.4  課題研究意義 4
2  G7技術的基本原理 5
2.1  G7的工作原理 5
2.2  G7工藝方法 5
2.3  G7工藝實際應用實驗及數據分析 8
3  G7實驗實例 13
3.1  材料測試 13
3.2 方法實踐 15
3.3 測試結論 18
4  G7工藝的規范要求和測試要點 22
4.1 印刷企業應用G7 工藝的規范要求 22
5  G7工藝的優點 25
5.1  使用G7工藝，可以為我們帶來的好處 25
6  G7的現狀與前景 26
7  總結與建議 28
致  謝 29
參考文獻 30

摘要：隨著科技的進步和印刷技術的飛速發展，人們對精美印刷品的需求越來越多。高質量的精美印刷品早已成為人們生活中不可或缺的組成部分。現今，印前數字網絡化、印刷多色高效化和顏色精確的高質化是印刷市場的普遍追求。而現代色彩管理，通過對各種設備呈色特性的數字化描述和顏色特征文件的色空間轉換，突破了不同設備、材料、環境對于生產的制約，實現“所見即所得”。其中的G7技術是GRACoL委員會提出以控制中性灰平衡為主要手段的工藝方法來控制印品質量，它主要是通過分光光度計對印張上中性灰平衡部分進行測量控制， 以一個新的NPDC曲線(Neutral Print Density Curve)來匹配圖像的視覺效果。本文淺談對G7技術在我國印刷企業中的應用研究。研究表明：GRACol 7技術規范仍需考慮進一步的改進，提出公差范圍，完善G7的標準化，國際化。
關鍵詞：GRACol 7；G7工藝；色彩管理；灰平衡；NPDC曲線；

Abstract: With the development of science including printing technology, there has been more public’s requirement to exquisite printing product. High qualified print takes an important part in people’s daily life. Now, online digital preprint process， efficient multicolor print process and qualified accuracy of color figures leads the market demand. In modern color management, through controlling the color spaces transformation of digital definition and color feature files among the equipments, it shift the constraints from different devices, materials and environment, make the WYSWYG come true. Besides, G7 technology is found by GRACol committee to control the quality of print based on mainly Gray Balance process, it generally use the spectrophotometer to measure and operate the Gray Balance part, making a new NPDC adjustment of visual effect. In this paper utilization research of G7 technique in Chinese printing enterprises was introduced near to professional, and it was indicated by research that GRACoL 7 need to be improved. Put its tolerance area forward, bring the standard to completion internationally as well.
Key words: GRACol 7；G7 process；color management；Gray Balance；NPDC;