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浅析胶印水、墨杠的成因
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作者 黄江 《印刷技术》 2005年第16期69-71,共3页
由于胶印机使用多年,各活动部件逐渐磨损松动或者操作者的操作不当,导致橡皮布、墨辊、水辊等与印版表面接触后产生瞬间摩擦滑动,致使印版上与滚筒轴心线平行的某一直线图文,改变了网点形状和油墨堆积厚度,形成了"杠子"."... 由于胶印机使用多年,各活动部件逐渐磨损松动或者操作者的操作不当,导致橡皮布、墨辊、水辊等与印版表面接触后产生瞬间摩擦滑动,致使印版上与滚筒轴心线平行的某一直线图文,改变了网点形状和油墨堆积厚度,形成了"杠子"."杠子"分为水杠(白杠)和墨杠,水杠即在"杠子"的区域内网点无规则地缩小,产生一条明显浅于周围图文的条痕;墨杠即在"杠子"的区域内网点无规则地扩大,产生一条明显的深色条痕.无论水杠还是墨杠,都会直接影响印刷品的美观和质量.为此,本人根据多年的实践经验,对如何避免产生水墨杠提出一些建议,供同行参考. 展开更多
关键词 胶印水 墨杠 胶印 故障检修
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无水胶印油墨与有水胶印油墨的色彩分析
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作者 郭凌华 骆光林 《包装工程》 CAS CSCD 北大核心 2005年第1期80-81,共2页
 测试德国K+E有水胶印油墨和无水胶印油墨印出的印刷测试条,计算两种油墨的色强度,色相误差,颜色饱和度,色效率。计算分析结果表明:无水胶印油墨的色彩还原质量好于有水胶印油墨。
关键词 密度 胶印油墨 胶印油墨 色强度 色相误差 色效率
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胶印输水系统的调节、使用与保养
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作者 王新城 《印刷世界》 2002年第3期24-25,共2页
关键词 胶印系统 调节 使用 保养 胶印
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Preparation of Ce-TiO_(2)-RGO catalyst and its application in the treatment of printing and dyeing wastewater
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作者 Bao Zhu Yan Pan 《日用化学工业(中英文)》 CAS 2024年第12期1465-1472,共8页
Ce-TiO_(2)-RGO composite photocatalyst was prepared by sol-gel method and ultrasonic treatment.The effect of Ce doping mass fraction on the degradation of textile printing and dyeing wastewater was studied.The catalys... Ce-TiO_(2)-RGO composite photocatalyst was prepared by sol-gel method and ultrasonic treatment.The effect of Ce doping mass fraction on the degradation of textile printing and dyeing wastewater was studied.The catalysts were characterized by XRD,SEM,TEM,UV-vis and PL.The results showed that,Ce-TiO_(2)particles uniformly adsorbed on the GO surface,and the particle diameter of Ce-TiO_(2)was approximately 25-110 nm.After Ce doping,the absorption band edge of TiO_(2)-RGO composite photocatalyst was redshifted and the band gap was reduced.With the increase of Ce doping mass fraction,the PL intensity of Ce-TiO_(2)-RGO composite photocatalyst first decreased and then slightly increased,and the emission peak intensity of 6%Ce-TiO_(2)-RGO composite photocatalyst was the lowest at 410 nm and 470 nm.Taking textile printing and dyeing wastewater as the research object of degradation,the COD removal rate of 6%Ce-TiO_(2)-RGO reached the maximum of 82.21%at 180 min,and the COD value after degradation was 88.95 mg/L which was in line with the wastewater discharge standard.On the other hand,at 180 min,the degradation rate for textile printing and dyeing wastewater by 6%Ce-TiO_(2)-RGO also reached the maximum(99.21%).Therefore,the Ce-TiO_(2)-RGO composite photocatalyst showed great application potential in the treatment of textile dyeing wastewater. 展开更多
关键词 sol-gel method textile printing and dyeing wastewater Ce-TiO_(2)-RGO photocatalysis spectral performance
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Ionoprinting controlled information storage of fluorescent hydrogel for hierarchical and multi-dimensional decryption 被引量:8
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作者 Xiao-Xia Le Wei Lu +3 位作者 Jiang He Michael J. Serpe Jia-Wei Zhang Tao Chen 《Science China Materials》 SCIE EI CSCD 2019年第6期831-839,共9页
Information storage and corresponding encryption/decryption are highly important owing to the prevalence of counterfeit activities and information leakage in the current age. Herein, we propose a novel method to store... Information storage and corresponding encryption/decryption are highly important owing to the prevalence of counterfeit activities and information leakage in the current age. Herein, we propose a novel method to store information via controllable ionoprinting onto fluorescent hydrogel for hierarchical and multi-dimensional decryption.Through incorporating pyrene moieties and carboxylic groups into polymeric hydrogel network, fluorescence changing and controllable shape deformation behaviors could be achieved and integrated by ionoprinting of Fe3+ions. The diffusion of Fe^3+ions into fluorescent hydrogel can quench the fluorescence of pyrene moieties, and chelate with carboxylic groups to generate anisotropic structures for shape deformation simultaneously. Thus, fluorescence quenching-based 2D information and actuation-based 3D information could be hierarchically decrypted when exposed to UV light and being put into water, respectively. Importantly, the stored information could be erased by replacing Fe^3+with H^+, which allows the fluorescent hydrogel as a recyclable information storage material. This work may provide new insights in designing and fabricating novel soft devices for hierarchical and multidimensional information encryption, against the rising problems of counterfeiting and confidential information disclosure. 展开更多
关键词 information storage information decryption hydrogel actuator fluorescence quenching anisotropic structures
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