涂布纸板胶印过程控制技术研究

On Process Control Technology of Offset Printing on Coated Paperboard

对涂布纸板胶印过程控制技术进行研究。通过调研选取目前包装印刷机构最常用的3类典型涂布纸板样品,并对其印刷性能及胶印过程控制参数进行测定,最后分析3类典型涂布纸板的印刷性能参数和胶印过程控制参数,从而确定涂布纸板胶印过程控制技术的规范要求。结果表明,在涂布纸板胶印过程中,涂布白卡纸性能参数为定量170~450 g/m2,CIE白度65~110,光泽度30%~60%,色度[95,1,0],黑色、青色、品红色、黄色的印刷实地色CIELAB色度值分别为[16,0,1][55,-37,-49][50,74,-2][89,-4,92];涂布白底白纸板性能参数为定量200~450 g/m2,CIE白度90~110,光泽度30%~60%,色度[91,1,-4],黑色、青色、品红色、黄色的印刷实地色CIELAB色度值分别为[16,0,1][53,-34,-50][47,71,-3][85,-5,88];涂布灰底白纸板性能参数为定量200~450 g/m2,CIE白度80~110,光泽度30%~60%,色度[90,1,-3],黑色、青色、品红色、黄色的印刷实地色CIELAB色度值分别为[17,0,1][53,-34,-50][47,72,-2][85,-5,87]。涂布纸板与涂布纸张在印刷性能、颜色、印刷适性等方面存在较大差异,基于涂布纸板印刷适性而制定的行业标准对包装印刷企业更具实际指导意义。

Based on the process control technology of offset printing on coated paperboard and industry standard setting, the scope, main content and key technical indicators of the industry standard were determined firstly. Then the performance parameters of three types of typical coated paperboard were tested and the proofs for offset printing on typical coated paperboard were tested. Finally the performance parameters and process control technical specifications of offset printing on three types of typical coated paperboard were analyzed to determine the standard requirements for coated paperboard printing process control. Typical coated cardboard performance parameters were as follows： massper-area 170-450 g/m2, CIE whiteness 65-110, gloss 30%-60%, coordinates [95, 1, 0], with CIELAB coordinates of the process color solids（Black[16, 0, 1], Cyan [55,-37,-49], Magenta[50, 74,-2], Yellow[89,-4, 92]）. Typical white back coated folding board performance parameters were as follows： mass-per-area 200-450 g/m2, CIE whiteness 90-110, gloss 30%-60%, coordinates[91, 1,-4], with CIELAB coordinates of the process color solids（Black [16, 0, 1], Cyan[53,-34,-50], Magenta[47, 71,-3], Yellow[85,-5, 88]）. Typical grey back coated folding board performance parameters were as follows： mass-per-area 200-450 g/m2, CIE whiteness 80-110, gloss 30%-60%, coordinates[90, 1,-3], with CIELAB coordinates of the process color solids（Black[17, 0, 1], Cyan[53,-34,-50], Magenta[47, 72,-2], Yellow[85,-5, 87]）. Coated paperboard and coated paper differed much in printing performance parameters, colors and printability. Industry standard setting based on the printability of coated paperboard was of more practical guiding significance to the packaging and printing enterprises.