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菲林片不良对晒版质量有哪些影响?
作者:admin 来源:http://www.sdhzyw.com 发布时间:2016-2-24 14:28:02 浏览次数:408
菲林片(也叫底片、软片或胶片)是复制印版的原稿纸箱纸盒,它的质量如何,直接影响到制版和印刷质量效果。可以说,它是印刷质量的源头环节,它的质量控制十分重要。然而,由于制版、拼版操作和使用保管不当EFI,很容易因菲林片存在缺陷而影响晒版质量,造成印刷的产品质量不符合标准要求。笔者在多年的质量管理工作中,对此深有体会。兹就日常生产中容易出现的质量问题,作些分析并提出相应的预防和处理措施。
Films (also called film, film or film) is the original carton copy plate, its quality, directly affects the quality of plate making and printing effect. Can say, it is the origin of printing quality link, its quality control is very important. However, due to the plate making, the idea of operation and use of improper safekeeping EFI, easily if the defect of films and affect the quality of plate burning, cause the printing quality of the products do not conform to the requirements of the standard. The author in the years of quality management work, to this. This is easy to appear the quality problem in daily production, make some analysis and put forward the corresponding prevention and treatment measures.
1.色标块粘贴过于靠近版面边缘引起的网点印刷不清晰。色标是印刷质量控制和检验必不可少的标志,通常都是贴放在胶片对应于印张的边缘部位上。记得有一次,我们曾出现这样的问题:由于版面图文较满喷墨印刷,色标贴上去后正好靠近图文边缘,造成晒版时色标相邻的图文漏光,密度明显降低,印刷时印张相对应的网点部位出现一团墨色明显偏淡现象。
1. The color code block paste is too close to the board edge caused by network printing is not clear. Color logo is an essential part of printing quality control and inspection, are usually posted on the edge of the transfer film corresponding to the position. Remember once, we had such a problem: due to the layout of graphic is full of ink jet printing, color label it is close to the graphic edge, cause printing color scale adjacent graphic light-leaking, significantly lower density, a printing press the corresponding node area when there is a mass of inky obvious weak phenomenon.
2.胶片边缘毛糙凸出引起的邻近区域版面印刷发花。有的胶片白边余量过大,拼版时用刀子将临近图文边缘的余量裁割后票证印刷,由于受刀尖的挤压使被裁割的胶片边缘自然向上凸出,形成一条细而毛糙的凸边,这样,晒版时胶片图文边缘凸出的毛边起到支撑作用,使与其相邻的图文部位与版面接触不够紧密印刷检测。
2. The film edge adjacent area layout caused coarse protruding printing hair flower. When some film white edge margin is too large, puzzle will close by the edge of the allowance cut with a knife after ticket printing, due to the point of extrusion was cut the film edge natural protrude upwards, forming a fine and coarse chime, so, when printing film by burrs at the edge of the protruding play a supporting role, make the adjacent graphic parts in contact with the layout of close enough printing detection.
3.胶片折痕引起的图文密度变低。在日常生产中,由于使用和保管不当,也很容易使胶片出现折痕现象制版,因为胶片具有一定的厚度、硬度和弹性,一旦出现折痕,特别是出现在图文部位的折痕,晒版抽气时,折痕处难以与版面保持较紧密的接触术语,就容易出现漏光现象,使相应的部位印迹变淡。
3. The film crease caused by lower density. In daily production, due to improper use and keeping, it is easy to make the film plate making a crease is because the film has a certain thickness, hardness and elasticity, once appear crease, especially the crease in graphic parts, plate burning extraction, crease in hard and layout have maintained close contact with the term, is easy to appear light-leaking phenomenon, make the corresponding part of the imprinting.