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print mottle
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  “print mottle”译为未确定词的双语例句
     The Cause of print mottle and the methed of prevention
     印刷“墨斑”成因分析与控制
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  相似匹配句对
     The Cause of print mottle and the methed of prevention
     印刷“墨斑”成因分析与控制
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     The Present of Print
     版画的当代状态
短句来源
     print contrast;
     ②印刷反差;
短句来源
     RESEARCH ON MOTTLE OF PERMANENT MAGNETIC FERRITE
     永磁铁氧体“花斑”现象的研究
短句来源
     THE IDENTIFICATION ON STRAWBERRY MOTTLE VIRUS IN CHINA
     我国草莓斑驳病毒研究鉴定
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  print mottle
The digital image analyses method is capable of objective and reproducible measurements of print mottle.
      


The smoothness, air permeability and ability of resitance liquid penetrating (expressed by PDA) of the base paper were studied after surface sizing on the high speed gap former.The effect of surface sizing on coating coverage and mottle of the coated paper was discussed.Compared with 100% oxidative starch, surface sizing agent containing synthesis polymer could improve the ability of paper to resist the liquid penetrating into the base paper and decrease the smoothness and air permeability of the base paper.Low...

The smoothness, air permeability and ability of resitance liquid penetrating (expressed by PDA) of the base paper were studied after surface sizing on the high speed gap former.The effect of surface sizing on coating coverage and mottle of the coated paper was discussed.Compared with 100% oxidative starch, surface sizing agent containing synthesis polymer could improve the ability of paper to resist the liquid penetrating into the base paper and decrease the smoothness and air permeability of the base paper.Low PDA, high smoothness and air permeability increased coating coverage.Coating coverage depended on the coating layer surface structure.The relation between coating coverage and print mottle was not found.The key factors controlling print mottle were PDA and air permeability.High PDA and low air permeability could decrease mottle and improve the print quality.

探讨了高速夹网纸机表面施胶对原纸平滑度、透气度以及抗拒流体瞬间渗透性能(PDA)的影响;通过机外高速涂布机对原纸进行相同的涂布工艺,比较了不同表面施胶剂组成与涂层覆盖率和印刷墨斑的差异。与100%氧化淀粉表面施胶相比,配加一定量的合成表面施胶剂,能降低原纸的平滑度和透气度,提高PDA。PDA小,平滑度高,透气度高,能提高涂层覆盖率;涂层覆盖率主要取决于涂层表面结构,覆盖率高不能反映出印刷墨斑的程度低。PDA和原纸透气度是控制印刷墨斑的关键参数,PDA大,原纸透气度低,能降低印刷墨斑的程度,添加合成表面施胶剂有利于改善涂布纸的印刷适性。

Print mottle is the most common problem in many packaging and printing enterprises.First a preliminarily brief discussion about the cause of mottle from the three elements:substrate(mainly paper). ink,press,and theirs relation of packaging print was given.Then the method of controlling this problem is given,helping the packaging and printing enterprises improve product quality.

针对包装印刷企业的常遇到的“墨斑”问题,从承印物(主要是纸)、油墨、印刷机三种主要元素,以及它们三者之间的关系出发。研究了印刷“墨斑”出现的成因,并提出了控制方法。

 
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