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纸张转印墨斑检测方法初探
Study on Back Trap Mottle of Paper Printing
收稿日期:  
DOI:10.11980/j.issn.0254-508X.2011.04.003
关键词:  新闻纸  铜版纸  单面涂布白纸板  转印墨斑  主观评定  客观评定
Key Words:colored offset newsprint  art paper, single coated paper  back trap mottle  subjective evaluation  objective quantitative assessment
基金项目:
作者单位
陈春霞1 1.广东省东莞市质量监督检测中心国家纸制品质量监督检验中心广东东莞523808 
徐梅英1 1.广东省东莞市质量监督检测中心国家纸制品质量监督检验中心广东东莞523808 
邓健信1 1.广东省东莞市质量监督检测中心国家纸制品质量监督检验中心广东东莞523808 
王玉峰1 1.广东省东莞市质量监督检测中心国家纸制品质量监督检验中心广东东莞523808 
黎伟波1 1.广东省东莞市质量监督检测中心国家纸制品质量监督检验中心广东东莞523808 
陈健鸿1 1.广东省东莞市质量监督检测中心国家纸制品质量监督检验中心广东东莞523808 
欧海龙1 1.广东省东莞市质量监督检测中心国家纸制品质量监督检验中心广东东莞523808 
邱玉桂1,2 1.广东省东莞市质量监督检测中心国家纸制品质量监督检验中心广东东莞5238082.华南理工大学制浆造纸工程国家重点实验室广东广州510640 
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摘要:利用IGT印刷适性仪,在不同印刷条件下探讨了新闻纸、单面涂布白纸板和铜版纸转印墨斑的变化规律。结果表明,两种新闻纸的优化印刷条件为:油墨量0.10 mL、印刷压力650 N、速度0.4 m/s;主客观判定结果有差异,最少墨量时客观判定效果好,中等墨量时主观判定效果较好。两种涂布白纸板的优化印刷条件为:油墨量0.35 mL、印刷压力200 N、速度0.3 m/s;铜版纸优选出的印刷条件为:油墨量0.50 mL,印刷压力500 N,速度0.2 m/s。2人组及4人组主观判定结果的相关性较强;3种客观判定方法中,光谱法与主观判定的一致性最好,PTS法次之,灰度法最差,光谱法和PTS法有望作为评价纸张转印墨斑的新方法。
Abstract:The back trap mottle in the print of different kinds of paper such as color offset newsprint, art paper and single coated paper was evaluated in this paper. Results showed that the optimized conditions of two kinds of newsprint are as follows: ink amount 0.10 mL, printing pressure 650 N, printing speed 0.4 m/s; there exists inconsistent correlation between objective quantitative assessment of mottling and subjective evaluation. Less mottle is obtained with the least ink amount by means of objective quantitative assessment, however, less mottle results are obtained with the medium ink amount when using subjective evaluation. The optimized conditions of the two kinds of single coated paper are as follows: ink amount 0.35 mL, printing pressure 200 N, printing speed 0.3 m/s. The optimized conditions of art paper are different. Results showed that there exists consistent correlation between 2 groups and 4 groups subjective evaluation of mottling. Among the three objective analysis methods, spectrum analysis correlates most closely with the visual results, then the PTS method. And the grey value method correlates at the least. So the spectrum analysis and the PTS method are expected to be the new methods for evaluation of the back trap mottle.
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