Treatment of Burst Faults in Indentation Lines of Film Products

Laminating film can not only improve the aesthetic appearance of the printed matter, but also improve the folding endurance performance of the surface, which is very favorable for the smooth progress of the post process. However, if the quality of the plastic film for paper or film is poor, indentation line failure may occur during die-cut indentation.

For example, when cutting a color box, a burst failure often occurs at the intersection of the indented steel wire and the die cutter. Burst occurs only in the film layer, and the indentation line along a certain direction bursts particularly severely, and the underlying paper generally does not burst. This shows that the failure has nothing to do with the operation of the machine and the pressure of the die-cutting machine. The problem lies in the film material used for the film. In response to this situation, the following measures can be taken to solve it.

1. Replace film raw materials.

2. If the product has not been processed yet, change the direction of film travel.

3. Modify the die-cut version, divided into the following two cases.

(1) The processing of the whiteboard color box is shown in Figure 1. In the figure 1, 3, 4 with a knife, can not cut after the knife. The cutter heads at 2, 5, and 6 are extended by 2mm, and the angle punching is about 110°.

(2) The processing of the corrugated cardboard box is shown in Figure 2. In the figure 1, 2, 3, 7 with a knife, can not cut after the knife. The knife lines at 4, 5, and 6 are made of "U" type with a knife.

By adopting the above methods, the structure of the color box will not be changed, and the bursting failure of the indentation line can be solved well, and counterparts may wish to learn from it.

Book glue adhesive book common quality problem book glue book binding is a necessary part of the book binding process, this process is completed well, will greatly improve the appearance of the book image, if there are quality problems, will undoubtedly reduce the overall grade of the book. The bookbinding quality of glue binding workers is not enough. It also involves technology, production processes, raw material quality, workshop production environment, and even local climate conditions. Therefore, it is necessary to analyze common quality problems. And discussion.

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