印版要選用耐磨、彈性適中、質(zhì)量上乘的材料，同一塊版面的版材厚薄要一致，樹脂版厚度不于4mm，橡皮版以6-7mm為佳。無論是用陰片菲林曬版，還是手工刀刻，版面一定要平整，字跡圖案線條深度不于3mm，文字圖案的排列不可過分擁擠，弧線要圓滑，粗細均勻，直線要直且流暢。印刷時油墨要適當調(diào)淡，涂墨輥的墨層不宜過厚，且輥筒的壓力適中，以印刷著墨均勻，箱面印跡無明顯凹痕為佳。
First of all, the plate to choose wear-resistant, moderate elasticity, high-quality materials, the same plate thickness to be consistent, resin plate thickness is not less than 4mm, rubber plate to 6-7mm. Whether it is to print with negative film or hand knife, the layout must be smooth, the depth of the lines of the handwriting pattern should not be less than 3mm, the arrangement of the text pattern should not be too crowded, the arc should be smooth, the thickness should be uniform, and the straight line should be straight and smooth. When printing, the ink should be properly diluted, the ink layer of the inking roller should not be too thick, and the pressure of the roller should be moderate, so that the printing inking is uniform and there is no obvious dent on the box surface.
切忌用增加油墨濃度，加大涂墨輥壓力改善印刷效果，如此非但達不到理想的目的，反而導致版面糊墨，印刷質(zhì)量更差，尤其文字較小、圖案復雜、線條細膩、套印要求精度高的版面，其劣勢更加明顯;印刷機車速不能于800轉(zhuǎn)/min，速度太慢箱面著墨不均勻，且有露現(xiàn)象。太快墨跡過濃，版面易糊，同時還要防止紙毛、紙屑等進入印刷機粘到印版上，如發(fā)現(xiàn)有紙屑粘版，要立即停機，用抹布蘸酒精擦拭干凈。
It is forbidden to increase the ink concentration and increase the pressure of the inking roller to improve the printing effect. This will not only fail to achieve the desired purpose, but also lead to ink paste and poor printing quality. Especially for the page with small text, complex pattern, fine lines and high overprint accuracy, its disadvantages are more obvious; The printing locomotive speed should not be lower than 800 rpm, the speed is too slow, the ink on the box surface is uneven, and the bottom is exposed. If the ink is too fast and the ink is too thick, the page is easy to paste. At the same time, it is also necessary to prevent the paper wool and paper scraps from entering the printing machine and sticking to the plate. If any paper scraps are found sticking to the plate, stop the machine immediately and wipe it with a cloth dipped in alcohol.
印刷顏色要純正，批量無色差
Printing color should be pure, no color difference in batch
水性油墨的優(yōu)劣是關(guān)系到紙箱印刷顏色純正、鮮亮的關(guān)鍵，因此在選用時要十分注意。的油墨與色標無明顯差異，手感細膩、粘稠、濃度適宜加水或醇類溶劑稀釋無沉淀、結(jié)塊現(xiàn)象，用木棒攪拌無泡沫產(chǎn)生，與其他油墨混合配色，親和力好，無不相溶現(xiàn)象，所配出的墨色純正，無異常反映，反之不可使用。
The quality of water-based ink is related to the carton printing color pure, bright key, so we should pay attention to when selecting. There is no obvious difference between the quality ink and the color label. The handle is fine, sticky, suitable for adding water or alcohol solvent to precipitate and caking. It is produced by mixing wood without foam and mixing with other ink. The compatibility is good and the phenomenon is not soluble.
印刷時好批量一次印完，不然，即使使用的是同一桶油墨，也會出現(xiàn)色差。原因是原墨加水或醇類溶劑稀釋后，不密封，長時間暴露在空氣中，油墨中的化學成分與空氣中的氧發(fā)生反應(yīng)，即降了色素，同時強光對油墨也有分解作用。
When printing, it is best to print in batches, otherwise, even if the same barrel of ink is used, there will be color difference. The reason is that the original ink diluted with water or alcohol solvent is not sealed and exposed to the air for a long time. The chemical composition in the ink reacts with the oxygen in the air, which reduces the pigment. At the same time, the strong light can also decompose the ink.
防止涂布白板紙箱印刷時疊印、重影涂布
Prevent overprint and double coating when printing white board carton
白板紙在制造時，用于涂布白板的涂布液中含膠，高檔白板表面還要涂少量的光蠟，所以用白板做面紙的紙箱在印刷時，印版與白板紙接觸的瞬間有打滑現(xiàn)象。加之印版壓力過重，水性油墨不易滲透，印刷后的紙箱油墨干燥慢，印刷時連續(xù)作業(yè)，印品重疊堆放，箱面即出現(xiàn)擦痕形成的疊印重影。
During the manufacture of white board paper, the coating solution used for coating white board contains glue, and the surface of high-grade white board needs to be coated with a small amount of polish wax. Therefore, when the cardboard box is made of white board, the printing plate and the whiteboard paper will slip at the moment of contact. In addition, the pressure of the printing plate is too heavy, the water-based ink is not easy to penetrate, the ink drying of the carton after printing is slow, the printing process is continuous, and the printed matter is overlapped and stacked, resulting in the overprint of scratch marks on the surface of the box.
要解決這一問題，油墨要用乙醇調(diào)淡，不要用水，因其不易揮發(fā)，不利油墨的干燥;印刷壓力要適當減小，印刷速度不宜太快，不超過600轉(zhuǎn)/min為宜。印刷機堆碼前加裝排風扇或通熱風干燥箱面墨跡。
To solve this problem, the ink should be diluted with ethanol instead of water, because it is not easy to volatilize, which is unfavorable to the drying of ink; the printing pressure should be appropriately reduced, and the printing speed should not be too fast, and should not exceed 600 rpm. The printing machine is equipped with exhaust fan or hot air drying box surface ink before stacking.
確保套印精度
Ensure overprint accuracy
套印精度取決于設(shè)備的精密度和送紙部推紙板的調(diào)節(jié)是否平行，再者就是版面制作、裝配、校正。下面就版面拼貼方面淺談套印精度。
The overprint accuracy first depends on the precision of the equipment and the adjustment of the push board in the paper feeding section, and then the layout production, assembly and correction. Below on the layout collage on the accuracy of overprint.
印版做好后，取0.5mm厚透明聚丙烯版基一張，在其長度畫一垂線，然后按待印紙箱規(guī)格，用小筆畫出長寬高邊線，再依樣稿或樣箱按生產(chǎn)通知單規(guī)定拼版。版面位置定位后，用水筆依印版邊緣畫線，之后將事先準備好的同樣大小版基覆蓋在畫好線的版基上，精確描出所有邊線(如套印三色可再畫一塊版基)，后按套印色別，把相應(yīng)的印版用氯丁膠牢牢粘在畫好的位置。然后用雙面膠將印版貼到印刷機的輥筒上，版基中線與印刷機裝版輥筒中線對正重合即可，只要拼版位置準確，其他客觀條件滿足，套印就準確無誤。
After the printing plate is finished, take a piece of transparent polypropylene plate base with a thickness of 0.5mm, draw a vertical line in its length center, and then draw the long, wide and high side lines with a small pen according to the specifications of the carton to be printed, and then assemble the plate according to the sample draft or sample box according to the production notice. After the layout position is positioned, the ink brush is used to draw lines according to the edge of the printing plate. After that, the prepared version base of the same size is covered on the printed plate base, and all the edge lines are accurately drawn (for example, another plate base can be drawn for three colors overprint). Finally, according to the overprint color, the corresponding printing plate is firmly glued to the drawing position with chloroprene glue. Then the printing plate is pasted on the roller of the printing machine with double-sided adhesive tape, and the center line of the plate base is aligned with the center line of the plate loading roller of the printing machine. As long as the position of the plate is accurate and other objective conditions are met, the overprint is accurate.
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