包装印刷的绿色化问题研究

环境污染问题已成为阻碍新世纪包装印刷工业持续发展的大问题。研究了各种包装印刷工艺的环境特性，并研究了包装印刷材料中油墨的环境性能问题，最后探讨了发展绿色包装印刷的五条措施。     

包装印刷品设计印刷材料的选择

对于包装印刷品,在包装设计中其材料的选择不仅要考虑包装设计定位及档次的高低,而且还要考虑包装印刷品的功能及环境特性(节约资源、保护环境),以及最终的印刷效果;从功能、环境特性、印刷效果3个方面探讨了包装设计中包装印刷品的印刷材料选择问题;包装印刷品印刷材料的选择主要涉及纸张等承印材料和油墨材料。     

浅析柔性版印刷在包装印刷上的应用

柔性版印刷属于凸版印刷,是当前印刷的主要方式之一,主要应用于包装印刷领域,在全世界包装印刷中占30%的市场份额。本文主要探讨了柔性版印刷在包装印刷上的应用,并系统地研究了柔性版印刷的发展前景。     

包装印刷技术对包装印刷原稿设计的要求

阐述了包装印刷原稿艺术设计与包装印刷复制技术的紧密结合关系，指出了只有从艺术设计与制版印刷要求相结合的角度出发，才能设计出完美的包装印刷原稿，最终得到完美的包装印刷产品。在此基础上，重点从包装印刷工艺技术的特点出发，具体研究了几类主要包装印刷工艺技术对原稿设计的要求。     

柔性版水性油墨在纸塑包装印刷中的应用

柔版印刷技术的前期投资成本低、印刷基质广泛以及制版时间较短等特点,在各种包装印刷当中获得了广泛地应用。同时,由于柔性版水性油墨具有不易燃、不含毒素、几乎不污染环境、干燥速度快等优势,在柔性印刷当中也颇受人们的青睐。在纸塑包装印刷中,通过调整柔性版水性油墨的颜色、粘度、黏着性、以及触变性等参数能够调整纸塑包装印刷的各种性能要求。在本文中,笔者着重分析和探讨了柔性版水性油墨在纸塑包装印刷中应用的相关情况。     

低碳时代呼唤绿色印刷——访北京印刷学院副校长蒲嘉陵

您知道吗?月饼包装越精美,月饼的污染越严重;您经常食用方便食品和速冻食品的包装上,那些五彩缤纷的图案用的是溶剂型油墨,这种油墨含有对人体有害的苯、铅、汞等物质。传统印刷包装不仅消耗大量资源,而且对环境也会造成污染。同时,传统印刷包装行业也面临着产业转型升级、提高科技水平等问题。     

印刷油墨中苯系物危害性的探讨

现今,"绿色""环保""安全生产""新能源"等字眼出现的频率越来越高,人们对绿色环保、绿色、安全的呼声也是水涨船高。油墨是印刷的主要组成部分,印刷所面临的环保与安全问题也被推到风口浪尖。印刷油墨中的成分也被研究了多种方法进行试验检测并得出结论,印刷油墨中含有的苯及苯系物对环境与人都有直接的影响与危害。众所周知,食品、玩具的包装外表看似丰富多彩、吸引人们购买。殊不知包装印刷油墨中都含有对人体有害的物质。该文首先了解苯及苯系物,其次分析了油墨中苯及苯系物对环境与人体的危害,并探讨了怎样去避免这种危害。     

“包装印刷”教学改革与探索

本文针对包装印刷类课程教学、实验、实践中存在的一些问题,提出了课程改革方案。该方案包括包装印刷课程知识体系、课程设置及教学方法,并详细论述了项目教学法在教学过程中的应用。     

包装印刷中防伪技术的应用研究

企业为保护自己和消费者权益,在产品的包装印刷中采用不同的防伪技术打击和杜绝假冒产品。本文就包装印前设计防伪、材料防伪、印刷工艺防伪及智能防伪等防伪技术在包装印刷中的应用进行研究。     

陕西省印刷包装工程重点实验室通过建设验收

陕西省科技厅2011年3月10日组织有关专家对依托西安理工大学印刷包装工程学院建设的陕西省印刷包装工程重点实验室进行了验收。专家组在听取了汇报、进行了质询和现场考察后一致认为,印刷包装工程重点实验室立足印刷包装工程科学研究与创新人才培养,注重教学、科研和工程实践相结     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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