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How to deal with the degumming when the flexo folder gluer is working
– Aug 05, 2021-
The degumming of the flexo folder gluer is due to the poor pasting fastness. The main reasons are: the poor viscosity of the adhesive or the lack of gluing amount; The adhesive and carton data are not suitable; If the adhesive port of the carton is treated by coating, polishing and other surface treatments, it is difficult for the adhesive to enter the paper through the surface layer, so the carton comparison is difficult to post; After folding and gluing, there is a lack of pressure, and the pressure time is not long, which is not conducive to the health of the post.When you meet this problem,how to deal with the degumming when the flexo folder gluer is working?Here are the methods about how to deal with the degumming when the flexo folder gluer is working.
1.How to deal with the degumming when the flexo folder gluer is working?This is the method for loose pasting.
As for the problem of unstable box pasting caused by adhesive, the flexo folder gluer shall select the adhesive suitable for the carton data to be posted. Secondly, the adhesive has strong adhesion. Because the instant pressure of the forming part is not very large, and the pressing dwell time is not long in the high-speed working process of producing 30-40 cartons per minute. The adhesive with strong self adhesion can paste the carton even quietly.
Finally, the ambient temperature of the operation workshop will have a certain impact on the adhesive. If the temperature in the operation workshop is too low, the adhesive will set immediately, affecting the bonding robustness. No matter how much glue is applied, it will not work.
Of course, the less glue is applied, the more sensitive it is to the room temperature. Therefore, in winter, the temperature of the operation workshop should be kept above 20 ℃ as far as possible, and the air conditioner can be installed for conditioning if possible. In the operation workshop, large and easy to see thermometers shall be equipped to view and control the working environment at any time. As for the pasted goods, they should be dried at room temperature before leaving the factory. In winter, it is forbidden to rush to deliver goods without drying.
二、How to deal with the degumming when the flexo folder gluer is working?As for cartons treated by film coating and polishing,there are some methods to deal with the non robust paste boxes.
During die cutting, a needle and thread knife is placed at the adhesive port to pierce the surface of the adhesive port, which is conducive to the entry of the adhesive.Wear the surface layer of the adhesive port with the edge grinding equipment of the flexo folder gluer to facilitate the entry of the adhesive. Spray the hot melt adhesive to the adhesive port, and use high temperature to melt the material on the surface of the adhesive port to improve the robustness of the paste box. In the prepress box design, the gluing part can be reserved at the edge of the box to be coated and polished in advance.
The above are the methods about how to deal with the degumming when the flexo folder gluer is working.