Printing is a well-known topic. Whether it's enterprises or scattered businesses, supermarkets and other discount seasons, you can see that there are exquisite folding picture albums on the shelves of shopping malls and the advertising billboards at the entrance. The exquisite picture books on the surface of Jinan printing factory also have many crafts. Now I'll know how to solve the double image in printing.
In the printing process, there will be a variety of problems, including printing technology, printing ink, printing production and other problems. Printing double image is the problem to be solved now. The edge of printing handwriting is inverted, and there is double image in printing. This is one of the common problems in the printing production process. Let's solve the problem of printing double image.
1： Check the plate
There are many reasons for the double image of the printing plate, but the most direct reason is that the surface of the thin handwriting is not smooth and uneven, or the printing is caused by pressure. In order to achieve a satisfactory printing effect, such as poor transfer of printing plate to ink and other factors, it requires that the technical equipment, printing plate, paperboard, ink and auxiliary materials should be properly matched.
2： Adjust the pressure
The pressure here is divided into up pressure and down pressure. Up pressure refers to the gap between the anilox roller and the printing wheel, and the downward pressure refers to the gap between the printing wheel and the printing roller. The larger the pressure, the smaller the clearance; the smaller the pressure, the larger the clearance. The effect of overpressure and overpressure is different. When the double image appears, you should carefully observe the printing effect. If the double image appears around the handwriting stroke, it is caused by excessive overpressure. The up pressing should be appropriately reduced, that is, the gap between the anilox roller and the printing wheel should be appropriately enlarged, subject to the direction of paper feeding. If the double image appears below the paper feeding direction, it is caused by excessive down pressing. To reduce the press down, that is, to increase the gap between the printing wheels, the effect will be improved.
3： Layout design
In the actual production process, we often encounter the situation of the field version and the small type layout. In the printing process, if we want to print the field version flat and full, the pressure should be appropriately greater, but at the same time, it will cause the phenomenon of small print reproduction. In addition to the above factors, there are other factors, such as poor ink transfer, uneven paperboard, uneven compressive strength. In printing, to achieve a bright color, full, good coverage effect, the first consideration is to adjust the parameters of the equipment, including pressure. Although the cushion can play a good role in buffering, it can not fundamentally avoid the possibility of double shadow.
If you want to produce exquisite printing products, you should pay attention to a lot in printing. Of course, you should pay attention not only to printing, but also to design. The above is the solution to the problem of printing double image, and more attention should be paid to printing.
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