How to deal with the rules of the cornice

The general method for the printer to measure the size of the film without positioning holes is to put the film to be printed on the PS plate, measure it with the left side of the ruler, measure it on the right side, and then measure the left and right “ten” of the film to the left and right sides of the PS plate. Distance, the center of the image on the film, the size of the mouth meets the requirements of the press. Obviously, this method is cumbersome to operate, takes a long time, and the printed version is not very accurate. For this reason, in the work, we summed up the method of using the waste PS plate edge to do the printing plate mouthwash rules, and achieved relatively good results. The specific methods are as follows:

1, the exposed, developed waste PS version of the side of the hole (no punch machine, do not punch the line), with a single-sided blade in the side of the positioning hole cut a width of 65cm of the strip. Be careful to trim the edges.

2. On the cut edge strip, draw the center line first with a ballpoint pen, and then draw one or two parallel long lines on the edge strip according to the size of the slits required by each printing machine, so that each parallel line goes to the side with the positioning hole. The distance is equal to the size of the mouth of each press.

3. Seal the painted midline and long parallel lines with transparent tape to prevent wear of the lines after long-term use.

After the above three-step operation, the printing plate and the mouth ruler are ready. How to use it when printing?

1. Align the positioning hole on the regular ruler with the positioning hole on the PS plate. There is no ruler for positioning the hole, so that the two right angles of the ruler are aligned with the two right angles on the side of the PS plate. Use pressure iron (lead) to press on both ends of the ruler. This step is best done on the table.

2. Put the film to be printed on the PS plate so that the squeezing line on the film overlaps with the squeegee line of the corresponding printer on the ruler. The centerline overlaps with the midline of the ruler. Then use the transparent tape to fix the fixed film on the PS plate to prevent the film from shifting. Then take the ruler and take the PS plate attached to the film to the printing plate.

In case of special circumstances, when you need to increase or decrease the size of the mouthwash, use transparent tape on the ruler to replace the lined white paper or paper. Increase the size of the mouth with three lines of white paper, reduce the size of the mouth with two horizontal lines of paper. Make the horizontal line on the paper strip or paper piece to the side of the ruler with a positioning hole equal to the new gutter size. The left and right position of the line is determined by the position of the scallop line on the film.

The actual work found that the ruler has the following advantages:

1, the operation is simple and convenient.

2, the amount of mouth speed, improve work efficiency.

3, drying out of the PS version of the mouth is very accurate size, graphics centered around.