In the printing process, there will be various problems, including printing process, printing ink, printing consumption and other issues. Printing double shadow is the problem to be dealt with now. Printing handwriting edge is inverted warping, printing double shadow is one of the common problems in the process of printing consumption. Here we will deal with it. The problem of printing duplicates.
First: Check the printing plate
There are many reasons for the double-shadows of the printed handwriting and strokes, but the direct reason is that the appearance of the fine handwriting and strokes is not smooth, uneven, or the printing is formed by pressure. In order to achieve a satisfactory version of the transfer of ink and other elements in consumption, the printing effect may be produced, the technical equipment, printing plate, cardboard, ink, auxiliary materials are requested to match appropriately.
II. Adjusting Pressure
The pressure here is divided into upper pressure and lower pressure. The upper pressure refers to the gap between the screen roller and the printing wheel. The lower pressure refers to the gap between the printing wheel and the printing wheel. When the pressure is large, the gap is small, and when the pressure is small, the gap is large. Over-pressure and over-pressure printing have different effects. When presenting double shadows, we should carefully observe the printing effect. If the double shadows appear around the handwriting strokes, they are formed by overpressure. We should reduce the overpressure appropriately, that is, to enlarge the gap between the screen roller and the printing wheel appropriately, taking the direction of paper feeding as the criterion. If the double shadows appear below the direction of paper feeding, they are overpressure. Yes. The effect will be improved if the lower pressure is reduced, that is, the clearance between the printing wheels is increased.
3: Layout design
In the process of practical consumption, we often encounter the situation of the field version and small print. In the process of printing, if we want the field version to print smoothly and fuller, the pressure should be more appropriate, but at the same time it will cause the phenomenon of duplication of small characters. In addition to the above factors, there are other factors, such as poor transfer of ink itself, uneven cardboard, uneven compressive strength. When printing, in order to achieve a bright color, plump, good masking effect, the first consideration is to adjust the parameters of the equipment, including pressure. Although cushioning can play a good buffer role, but still can not basically prevent the possibility of double shadows.