The second highest complaint rate is the printing of infusion bag body. The contents printed on the packaging materials should be clear and not easy to fade and erase. The printing material of the infusion bag is black thermal transfer film, and the information is printed on the bag body through predetermined fonts and heating by the heating plate. To solve the problem of printing clarity, it is necessary to control the temperature of the printing heating plate and the material of the thermal transfer mold itself. Only by achieving a good combination of process parameters and materials can the printing clarity be guaranteed.<br> In addition to the above two problems, the last complaint is relatively small but should be solved, that is, redundant scraps. The appearance of scraps often occurs after the bag is made, and the scraps can not be completely torn at the edge tearing station. The possible reason is that the cutter can't completely remove the waste edge, or the part that tears the waste edge needs to be improved. Detailed improvement methods need to be obtained through on-the-spot investigation.
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