For you to analyze the cause of food packaging bag manufacturer roll become warped

some of food packaging in packaging products will appear after roll become warped problem such as uneven deformation, cause these phenomena will be what reason be? And how can we produce the bag manufacturer to avoid this situation? Believe that there are many food manufacturers will more or less encountered this kind of situation, after packed in plastic food packaging products packaging surface integral roll become warped, bag, such as deformation, uneven packaging what are the main reasons of these problems we should be how to solve?

first of all let's analysis, the main cause of packing roll become warped, deformation, etc:

1, the surface of substrate membrane heat resistance is poorer, after high temperature is, the edge of cock.

2, improper control of compound composite substrate tension in the process of matching, 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; Temperature wasn't up to finalize the design temperature.

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;

then since we already know the reason why you should make the corresponding adjustment to this, avoid to cause unnecessary loss, the following are some of the coping methods: we summarized the

1, reselect surface film base material, don't keen on gaining petty advantages choose inferior substrate, the stand or fall of base material decided the quality of the finished products, manufacturers should choose carefully.

2, adjust the tension of composite processing equipment parts, make two phase composite substrate retraction rate are equal;

3, adjust the floating roller tension, when do thickness consistent as far as possible;

4, fully cooling; Use appropriate cooling method, the proper time and way to cooling.

5, sufficient to cure, but it cannot 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.

the above are some causes of food bag after products will roll become warped and some available for decisive problem, hope the above would be helpful to your place, which fully shows that food packaging production is need very important experience, in order to make good quality, good style, and mature food packaging bags, food factory, don't blindly to emphasize cheap to filter supplier, professional and mature production level is stable fundamental guarantee to the bag.