Sunny today, small make up to go out to visit a lot of peer companies, today have customer response heard HuaLiang packing: some
food packaging in packaging products will appear after roll become warped packaging problems such as uneven deformation, we discussed on the problem.
Small make up today will tell you about the cause of food packaging these problems and solutions!
Let's analyze the food packing bags of the main causes of packaging roll become warped, deformation, etc: 1, the surface of substrate membrane poor heat resistance;
2, composite composite substrate tension in the process of matching control improper, cause there are residual stress after the curing finalize the design, especially when composite membrane thickness thinner is more likely to occur such failures;
3, the thickness of the composite membrane inconsistent;
4, insufficient cooling;
5, the curing time is not enough;
6, the longitudinal heat sealing parts, composite film path is not straight,
7, heat sealing temperature too high or heat sealing time is too long;
Next we aimed at these reasons to summarize the methods: 1, to select the surface film base material, don't keen on gaining petty advantages choose slightly looking material;
2, adjust the tension of composite processing equipment parts, make two phase composite substrate retraction rate of phase 3, adjust the floating roller tension, when do thickness consistent as far as possible;
4, fully cooling;
5, sufficient for curing, but also can not make the material overripe otherwise easy to cause adhesion, this degree must grasp well;
6, choose photosensitive base material with low temperature heat sealing;
7, the heat sealing temperature adjustment to the appropriate temperature.
That is some lead to food packaging bags after products will roll become warped and some issues for the cause of refuse, hope the above content can help to you.
And look forward to cooperating with you!
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