摘要
目的分析不同照明/观察条件下镀铝纸的色度与光谱值,从而优化不同几何条件在镀铝纸颜色测量中的应用。方法使用45°/0°,SCE,SCI等3种测量条件获取不同镀铝纸的颜色信息,并针对镀铝纸配色和镀铝纸颜色心理属性一致性对其进行对比分析。结果 45°/0°和SCE条件下的测量数据不符合镀铝纸配色要求;同一样张测得反射率、亮度与色度值大小规律为:SCI>SCE>45°/0°,不同样张在SCE条件下测得的亮度差(△L*)、色度差(△a*,△b*)以及色差(△E)均介于SCI与45°/0°之间,这是由于SCE测量颜色成分中包含了部分镜面反射光。结论 45°/0°和SCE不可作为镀铝纸配色中颜色测量条件,45°/0°较SCE更适合作为镀铝纸表观色测量条件,更符合颜色视觉评价,不同镀铝纸在SCI条件下测量数据差与在45°/0°条件下测量数据差同时较小时,说明两者一致性好。
In order to analyze the chroma and spectra of silver-foiled paper under different Illuminant/geometric observation conditions and further to optimize the application of different geometric conditions in color measurement of silver-foiled paper, color data on silver-foil paper were obtained under three geometric conditions： 45°/0°, SCI and SCE, and then the data were analyzed in computer color matching and the consistency of color psychometric attributes on si lver-foiled paper. The spectral reflectance data of silver foil paper under 45°/0° and SCE did not meet the requirement of computer color matching. The descent order of the reflectance, lightness and chroma of the same sheet of silver-foiled paper was： SCISCE45°/0°. The value of △L＊, △a＊, △b＊ and △E under SCE was between that under SCI and 45°/0°, resulting from the remnant specular light in the measured light. In conclusion, 45°/0° and SCE is infeasible as the measurement condition of silver foil paper in computer color matching. 45°/0° is a better measuring geometry and matches well with the visual assessment for the silver-foiled paper compared to SCE. The consistency of different sil-ver-foiled papers is better when the D-value of lightness and chroma is smaller respectively under 45°/0° and SCI.
出处
《包装工程》
CAS
CSCD
北大核心
2016年第15期7-11,共5页
Packaging Engineering
基金
国家自然科学基金(61275172)
安徽省博士后研究人员科研活动经费(2015B060)
关键词
照明/观察
镀铝纸
颜色测量
illuminant/observation
silver-foiled paper
color measurement
