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精装书印刷对纸张的几大要求
作者:admin 来源:http://www.sdhzyw.com 发布时间:2017-4-10 15:29:01 浏览次数:790
1.纸张的吸墨性:纸张对油墨的吸收,主要取决于纸张的纤维间的紧密程度(空隙的大小)。当纸张纤维间的空隙小时,因帚化纤维过少,使纤维毛细管的作用受到影响,造成纸张对油墨的吸收性降低。
1 the ink absorption of paper: the absorption of the ink on the paper depends on the degree of tightness of the fiber (the size of the gap). When the gap between the paper fibers, due to the lack of fiber, so that the role of the fiber capillary is affected, resulting in the absorption of paper ink.
如果纸张纤维间的空隙过大,会因吸收连接料过多而造成油墨颜料一并被吸收,使印刷品出现透印的现象。
If the gap between the paper fiber is too large, due to the absorption of the material is too much ink pigment is absorbed together, so that the printing of the phenomenon of india.
2.印刷对纸张的要求是:纸张的色调尽可能地达到同一质地的色泽纯度,纸张的尘埃度不得超过允许的范围,具有更小的透光率,并有保证正常印刷时的机械强度,纸张的厚度、紧度、结构特性等要在同一印刷批量中保持相同,纸边应为直角且斜度误差不能超过±3mm。
2 printing on paper: paper color as far as possible to achieve the same texture color purity, paper dust shall not exceed the allowable range, with minimum transmission rate, and ensure the mechanical strength of normal printing, paper thickness, compactness and structural characteristics to keep in the same same bulk printing, paper edge should be right angle and the pitch error is not more than 3mm.
3.纸张的平滑度:纸张的平滑度直接决定着印刷品的印刷品质。平滑度高的纸张在压印时,能较好地与版面进行接触,使印版上的油墨层能够均匀地转移到纸面上,平滑度低的纸张,会因为印刷时表面的不平整,造成压印时版面与纸张的表面接触不均匀。
3 the smoothness of the paper: the smoothness of the paper directly determines the printing quality of the printed matter. The smoothness of the paper in nano imprint lithography, can make contact with the layout, so that the ink layer on the plate can be evenly transferred to the paper surface smoothness, low paper, because the printing surface is not flat, causing the surface contact with the paper layout imprint is not uniform.
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