【作者】 丁莹琨； 徐艳芳； 柯雨婷；

【Author】 DING Yingkun,XU Yanfang and KE Yuting Beijing Institute of Graphic Communication,Beijing,China

【机构】 北京印刷学院印刷与包装工程学院；

【摘要】 研究金银卡纸的颜色测量描述方法对于金银卡颜色质量的控制尤为重要。本课题所用方法是通过测量不同含量的金、银色对不同色调、不同饱和度普通彩色油墨色色度值的影响来考察金银色的作用。采用漫射光测色条件下含有和排除镜面反射光对应的CIEL~*a~*b~*色度值表征含有金银色的油墨色度,引入含有和排除镜面反射光的L~*值差为明度差,以及排除和含有镜面反射光的彩度差与彩度和的比值为彩度比的概念,量化了彩度比与明度差间的关联特性。试验结果表明:对于同一颜色而言,随含金银墨量的增大彩度比与明度差呈线性关系;对于同一金银墨量的颜色而言,随饱和度增大彩度比与明度差亦呈线性关系。更多还原

【Abstract】 The study on the method of the color measurement of gold and silver foil paper is important to control color quality in the printing industry.The methods used in the experiments were to study the role of the gold tone and silver tone by studying the influence of gold tone and silver tone with different content on the chromatic value of normal color ink with different tone and different saturation.In the experiments,CIEL a b chromatic value of SPIN and SPEX respectively in the diffuse light conditions of color measurement could represent the chromatic value of the ink containing gold or silver ink.Then the difference of L values between SPIN and SPEX was defined as lightness difference.The ratio of the difference of saturation between SPIN and SPEX to their sum was defined as saturation ratio.Therefore,the Correlation Properties between lightness difference and saturation ratio was quantified.The result shows that with the quantity of gold and silver ink increasing,saturation ratio has linear relation with lightness difference for the same color.Similarly,with the saturation of normal ink colors increasing, saturation ratio has linear relation with lightness difference for a series of colors containing the same quantity of gold and silver ink.更多还原