Gravure Printing Plate Failure Analysis and Troubleshooting--Combined with Printing Note

Six, offset, silk screen, gravure printing with the notes

Due to the relative complexity of the gravure offset printing and screen printing plate making processes and the high cycle cost, the combination of glue, wire and groove should be based on gravure. The commonly used methods are:

1. After the gravure platemaking, the intaglio electronic file is sent to the film company's soft film, and then the offset film is used as the reference to make the offset plate.

In this way, there are mainly good and bad companies in the film industry. Better film companies also have variable factors such as film, syrup, and output device parameter settings. The same electronic files are often present. In the morning, the film is not in the same film as in the afternoon. Quasi; Today's film is inaccurate with tomorrow's film set. At present, the control method to avoid this problem is to use a standard soft ruler to measure the overall size after film is taken out; secondly, the film comes out with the printing plate, so that the film is laid flat and has no gap with the platen roller, and the magnifying glass is used to check overprinting. Is the line consistent?

2. The gravure will be printed out first, and then the offset will be used as the basis for the offset printing plate.

3. First offset printed products after gravure printing.

Although we do not advocate this kind of production, we still have to deal with special situations. In this case, it is necessary to provide the plate-making factory with flat prints, electronic documents, and films for offset printing. We will use the printed sample as the standard and the film as the reference to adjust the size of the electronic document to achieve accurate overlay with the sample. However, when the collimated pattern requires that the overlay error not exceed 0.1 mm, it is often difficult to find the basis for the first plate making.

Due to the flexibility of the paper, whether it is offset printing, gravure printing, or gravure printing in all colors, it is very easy to deform the paper after a large area of ​​field printing. Therefore, the constant temperature and humidity of the workshop and the control of the oven temperature are very important. If the paper cannot be compensated due to the large amount of paper stretching, the overall zooming should be taken into account during the plate-making process (finding the variable). To achieve accurate color registration.

Source: Proportional Network