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纸张平滑度不同印出来的效果也具有差别
作者:admin 来源:http://www.sdhzyw.com 发布时间:2018-4-16 16:35:44 浏览次数:476

纸张是一种可压缩性材料,在印刷压力下,纸张的印刷平滑度是纸张表观平滑度与表面可压缩性的综合体现.纸张的平滑度是发映纸张表面平整、光滑程度的性能指标.纸张平滑度不同,印刷中油墨与纸张接触的紧密程度就不同,更终影响油墨的转移程度及图文是否清晰等方面.

Paper is a compressible material. Under the pressure of printing, the smoothness of paper is a comprehensive embodiment of the apparent smoothness and compressibility of the paper. The smoothness of paper is the performance index of the smoothness and smoothness of the surface of the paper. The paper has a different smoothness and the close degree of the ink and paper contact in printing is different, finally the paper is different. It affects the degree of transfer of ink and whether it is clear or not.

光泽度是纸张表面镜面反射的程度,主要取决于纸张表面的粗糙度和构成纸张的物质的性质.光泽度高的纸张,在相同的条件下,油墨的色强度大,而色偏和灰度小,否则墨层的色强度低,色偏和灰度比较高,造成彩色套印灰平衡控制困难.

济南书刊杂志印刷

Gloss is the degree of mirror reflection on the surface of paper, depending mainly on the roughness of the surface of the paper and the nature of the material that makes paper. The high gloss paper, under the same conditions, has a large color intensity, and the color deviation and gray level are small. Otherwise, the color intensity of the ink layer is low, the color deviation and the gray level are high, which makes the balance control of the color printing and ash printing difficult.

在实际印刷中,纸张对油墨的吸收性可分为两个阶段:加压渗透和自由渗透,主要取决于印刷压力和纸张表面空隙结构的分布.通常采用KN值来表示纸张对油墨的吸收性能.

In actual printing, the absorbability of paper to ink can be divided into two stages: pressure penetration and free penetration, mainly depending on the printing pressure and the distribution of the gap structure on the surface of the paper. The KN value is usually used to indicate the absorption properties of the paper to the ink.

纸张是图文信息的载体,其白度直接影响印刷品的色彩.油墨转移到纸张上后,通过色料减色法和色光加色法形成色彩.纸张白度低,则吸收过多的光线,油墨的色彩不能充分发挥出来,影响图像颜色的色相、明度、饱和度,造成色彩灰暗,对比度差,画面呆板,层次少.

Paper is the carrier of graphic information, its whiteness directly affects the color of the printed matter. After the ink is transferred to the paper, the color is formed by the color reduction and color light adding. The paper has low whiteness and absorbs too much light, and the color of the ink can not be fully displayed, affecting the color phase, lightness and saturation of the color of the image, resulting in the dark color of the color. The contrast is poor, the picture is dull and the level is small.

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