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水墨印刷机的操作技巧
添加时间:2018/3/19 17:38:12     浏览次数:
使用树脂版要得到高品质的印刷品必须要有优秀的设计稿和高品质的菲林片。好的设计稿是高品质印刷品的根本,以确保好的再现性,设计时应注意:
The use of the resin plate to obtain high quality prints must have excellent design draft and high quality film. Good design draft is the foundation of high quality print to ensure good reproducibility, and should be paid attention to when designing.
1.如果采用照相制版,所制作的墨稿中所有的线条、文字要墨度一致,否则会导致不必要的照相修正和手工修饰才能制出满意的菲林片。
1., if the Phototypesetting is used, all the lines and characters in the ink manuscript should be ink consistent, otherwise it will lead to unnecessary photographic correction and manual modification to produce satisfactory film.
2.在满足客户要求的情况下,尽量使阳字笔划变细,阴字笔划变粗,这样就加大了笔划之间间隔,不容易造成印刷糊版。
2., in order to meet the requirements of customers, we should try to make the strokes of the Yang characters thinner and the strokes of the Yin characters thicker, which will increase the distance between strokes, and it will not be easy to cause printing paste.
3.尽可能避免网点和大面积色块图案在同一块版上印刷,如果大面积色块图案和细线条图案分开单独版印刷,压力调整和颜色控制要简单得多。
3., as far as possible, avoid dot printing and large area color block printing on the same block. If large area color patterns and fine line patterns are printed separately, the pressure adjustment and color control are much simpler.
4.如果在一种颜色内部套印另外颜色,并且颜色之间要求不留空隙,设计时就要考虑印刷机的精度,使两种颜色的版面进行叠加印刷,叠加部分的宽度为印刷机的印刷偏差。
4., if we need to print another color in one color and leave no gap between colors, we must consider the accuracy of printing machine when designing, so that the layout of two colors can be superimposed and printed, and the width of superimposed part is the printing error of printing machine.
5.设计稿必须考虑树脂版的延伸率。制版时,版不会发生收缩和伸长,而当版装到印版辊上时,在绕版辊的方向版会延伸,而树脂版延伸率是可以计算的:树脂版延伸率=版辊+双面胶带和衬垫厚度÷(版辊+双面胶带厚度+树脂版版厚)×10%
5. the design draft must consider the elongation of the resin plate. Seihan, version will not shrink and elongate, and when the version fitted to the printing plate roll on roll around, extending in the direction will, and the resin version of elongation can be calculated: resin version elongation roll = + double-sided tape and liner thickness, roll tape thickness (+ + resin version thick version) * 10%
设计时要求的实际尺寸乘以树脂版延伸率就是设计稿的尺寸。
The actual size required by the design times the extensibility of the resin plate is the size of the design draft.
B、菲林片
B, film
高品质的菲林片对树脂版制作很关键,对所用的菲林都要作细致的检查:
The high quality of the film is very important for the production of the resin plate.
1.透光区密度要小于0.05,这样能保证菲林片符合制版要求,有结实的细微图案和清晰的阴字
1. the density of the light transmission area is less than 0.05, which ensures that the film is in line with the requirements of the plate making, with fine fine patterns and clear Yin characters.
2.不透光区密度要大于4.0,太低的密度会导致图纹不够深或出现不应有的图案。
2. the density of the light transmission area is more than 4, and the low density will result in the pattern not deep or undue.
3.菲林片要有正确的图案方向,即药膜向上时为正图文,这一点很重要,这样可保证制版时菲林片与版材表面良好接触
The 3. film must have the correct direction of the membrane to the pattern, when the positive image, this point is very important, which can ensure the plate making film and plate surface contact
4.菲林片要清洁,无污点,无折皱。否则图案部分的折皱会反映到版上,握住菲林片对角线方向可以减少折皱的产生。
4. the film is clean, no stain, no wrinkle. Otherwise, the wrinkle of the pattern part will be reflected on the plate. Holding the diagonal direction of the film can reduce the crease.
5.加网线数一定不要高于网纹辊网线数,通常加网线数应为网纹辊线数的1/3左右,否则极易糊版;注意加网角度,由于水墨印刷采用网纹辊传墨,而网纹辊的着墨孔是以一定角度进行雕刻的,很容易与加网角度发生干涉而产生“龟纹”,因此,在制版时要注意避免龟纹。由于大部分网纹辊通常以45°角雕刻着墨孔,因此,加网角度应尽量避开45°,一般为Y90°、M15°、K30°、C60°,或者Y82.5°、M67.5°、BK37.5°、C97.5°。目前有很多新型网纹辊着墨孔的雕刻角度已不采用45°,而采用60°或其他角度进行雕刻,这对避免龟纹非常有利。
5. screen line number must not be higher than the number of roller cable, usually with line number for the number of roller line about 1/3, otherwise easy to paste version; attention and network point, because the ink printing ink roller, inking roller and the hole is carved with a certain angle, and it is easy to add network interference and moire "", therefore, in seihan to avoid moire. Because most of the roller is usually at 45 degrees angle carving inking hole, therefore, should try to avoid the screen angle 45 degrees, generally Y90 degrees, M15 degrees, K30 degrees, C60 degrees, Y82.5 degrees, or M67.5 degrees, BK37.5 degrees, C97.5 degrees. There are a lot of new type roller inking hole carved angle has not used by 45 degrees, 60 degrees or other aspects of sculpture, this is very advantageous to avoid moire.
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