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印刷品设计为什么需要加出血?

来源:http://www.xinfengyinshua.cn/   发布时间:2021-09-22
印刷品设计为什么需要加出血?很多企业的设计师在和印刷厂对接的时候讲没有加出血的稿件传给印刷厂制版人员时候,被要求加出血。很不理解,非要加出血吗?
Why does print design need bleeding? Designers of many enterprises are required to add bleeding when they communicate with the printing plant that the manuscript without bleeding is transmitted to the plate making personnel of the printing plant. I don't understand. Do you have to add bleeding?
首先,需要强调的是,纸质印刷品印刷设计时都需要加出血。这里不接受不加出血就可以上机印刷的辩论!为什么印刷品需要加出血,实际上是为了降低加工的难度,如果所有加工位置都能准确无误,那么出血确实没什么意义,但是由于纸张伸缩以及工序定位等等原因,某些尺寸会有一些误差,这时出血是保证成品率的关键。
First of all, it should be emphasized that bleeding needs to be added in the printing design of paper printing. The debate that we can print without bleeding is not accepted here! The reason why printing materials need bleeding is actually to reduce the difficulty of processing. If all processing positions can be accurate, bleeding really doesn't make sense, but some sizes will have some errors due to paper expansion and process positioning. At this time, bleeding is the key to ensure the yield.
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比如你做一个广告宣传单,宣传单是一个直径为15厘米圆形,图文是在整个绿色底上印刷红色字和其他图文,这时印刷底色时,不能恰好印刷15厘米的圆,必须多印刷0.5厘米,也就是说印刷绿色时是印刷15.5厘米的圆形,再印其他图文。这样,印刷和模切位置误差超过0.5厘米才会露白。如果没有这个出血,必须一点不差,这很难。
For example, if you make an advertising leaflet, the leaflet is a circle with a diameter of 15 cm, and the text is printed with red words and other text on the whole green background. At this time, when printing the background color, you can't just print a circle of 15 cm, and you must print 0.5 cm more, that is, when printing green, you print a circle of 15.5 cm, and then print other text. In this way, the printing and die-cutting position error will be exposed only when it exceeds 0.5cm. If there is no bleeding, it must be not bad, which is difficult.
其次,不论是现在印刷技术多么先进,工序多么协同,总会有误差。特别是在环境温度不可控的情况下,人工裁切和模切时不可避免会出现偏离的情况。这个出血,就是为了让偏离有纠正的机会。
Secondly, no matter how advanced the printing technology and how collaborative the processes are, there will always be errors. Especially when the ambient temperature is uncontrollable, deviation will inevitably occur during manual cutting and die cutting. This bleeding is to give the deviation a chance to correct.
再次,为什么需要加3mm出血?这是在长期的实践过程中,总结出来的。当然有些印刷品加的出血可能小,比如名片拼版印刷的时候只需要加1.5mm的出血即可;再比如,彩色瓦楞纸箱在印刷裱纸的时候需要加不少于5mm的出血。当然单页或者海报在尺寸不允许的情况下,也可以加2mm的出血。这都是可以灵活对待的,可以少加出血但是不能不加出血!
Again, why add 3mm bleeding? This is summed up in the process of long-term practice. Of course, the bleeding of some printed materials may be small. For example, when making up business cards, only 1.5mm bleeding is needed; For another example, the color corrugated box needs to add no less than 5mm bleeding when printing and mounting paper. Of course, when the size of a single page or poster is not allowed, 2mm bleeding can also be added. This can be treated flexibly. You can add less bleeding, but you can't do without bleeding!
好了小伙伴们,关于印刷品为什么需要加出血,加多少出血的问题就和大家探讨到这里,欢迎在线留言交流!
All right, guys, let's discuss why and how much bleeding should be added to printed matter. Welcome to leave messages online!
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