The completion of the imposition does not mean the end of the typesetting work, we have another very important work-the drawing of the knife pattern. After the printing process is completed, each print must be divided into finished products. For example, the imposition example above, after finishing the printing, it must be divided into eight finished cards. It is impossible to use scissors to cut when dividing, we have to produce another version-knife template. Of course, in general printing factories, you don't need to make the knife mold yourself. You only need to draw the knife mold line, and then send it to the knife mold factory. The knife mold factory will make the knife plate, and then take it back to the beer machine to beer Press it, and then remove the paper edge and put it neatly to deliver it to the customer.
The drawing of the die line is done on the basis of the printed version, in fact, the actual size of the finished product is drawn on a layout containing a bleeding site (no color is required), let's start the die line The drawing:
1. The finished card size we set above is 120 × 175mm after folding, and 250 × 185mm (including bleeding) after unfolding.
2. Use the rectangle tool to draw a rectangle with a size of 239 × 175mm. Select the rectangle and then select the card in the upper left corner of the printing plate. Press the "C" key to align vertically and press the "E" key to align horizontally. The rectangle is in The center of the card. Adjust the fine-tuning distance value to 0.5mm, select the rectangle just drawn, and click the right arrow to move it to the right by 0.5mm (because the rectangle has done a reduction action, so if you do not move 0.5mm to the right, both sides will appear Each is 5.5mm bleeding, but our goal is to have 5mm bleeding on the right and 6mm bleeding on the left). Select the Bezier curve tool, draw a line with a vertical height of 175mm, and align it vertically to the right of the rectangle, adjust the fine-tuning value to 120mm, select the vertical line, click the left arrow, the vertical line will divide the rectangle into the right 120mm, 119mm on the left, as shown in Figure 9. Here, the front is set to 120mm, and the back is set to 119mm, because the back is beyond the front due to inaccurate registration after the beer press on the beer machine. After 1-2mm reduction, it will not worry about the finished product. There is a defect of open back (that is, the paper on the back can be seen from the front of the card surface).
3. Select the rectangle (the border is set to a solid line, indicating that it needs to be cut) and the vertical line (the border is set to a broken line, which means that only the indentation is not cut) and the group is an object, and the "deformation" dialog box in the "arrangement" is called , Set the vertical value to -185mm and the horizontal value to 0 in the "Position" item, and then click "Apply to Remanufactured Objects" three times, the card die line on the left is basically completed; select the four newly created rectangles , Set the horizontal value of 249mm in the "Transformation" dialog box, and set the vertical item to 0, and then click "Apply to Reworked Objects" to copy another four die lines; combine the eight card patterns with the previous settings The positioning rectangular frame of the bite and bleeding position was removed, and as a result there were only eight rectangular frames left on the paper.
At this point, the printing plate and the knife template are completed. The follow-up work is to produce a film. Normally, four color films of cyan, magenta, yellow, and black are printed and an additional knife die is added. Need another movie. Because film production and plate making belong to the work of the printing room, the prepress work ends here. (The bleeding set here is 5mm on the upper and lower sides, which is a total of 10mm of bleeding. This is because the printing of large sheets of paper should take care of the paper. The paper may be stretched or deformed due to the relationship between temperature and humidity. The position of the set is not accurate. The bleeding of 3mm is only when there is no way. The 5mm is generally better. Generally, we usually use the bleeding of 3mm for design, but if the paper is thick or packaging, I suggest Use 5mm bleeding, but it is best to make the bleeding cutting line yourself, because the output company is used to help you add a 3mm cutting line. This imposition is to try not to waste paper, printing on the paper in the open, we provide such a film For others, if you do n’t make an imposition, you need to output a few copies of the film and let the printing house make the imposition.)
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