
The composite bag zipper has good obstruction, thermal sealing, moisture
resistance, and is acid -resistant, alkaline and wear -resistant, so it is
widely used in food packaging. With the increasing requirements for the quality
requirements of soft packaging composite bag zippers, the quality testing of
packaging companies on soft packaging composite bag zippers has also paid more
and more attention.
Appearance visual inspection includes projects such as the flatness and
transparency of composite bag zipper. It is mainly used to detect whether there
are obvious abrasions and pinhole on the surface of the composite bag zipper,
and whether there is pollution at the seal.
Place the center of the composite bag zipper, align the 40W solar light
gently, and use the reflection light on the surface of the zipper surface of the
composite bag to clearly find out whether the surface of the composite bag
zipper is scratched or traces. Essence If the drawing is serious, you must find
the fault according to the actual situation, and reduce the impact to the lower
point to ensure the quality of the product. By observing that the drawing
phenomenon we found is mostly caused by the non -cleaning of the guidance roller
of the bag making machine, we must ensure that the guide roller is clean. In
addition, no rotation of the guide roller will also cause brushes to draw a
composite bag zipper. The reasons for the non -rotation of the guide roller are
mostly caused by the lack of oil in the bearing, so good lubrication is the
fundamental condition for bearing rotation.
Composite bag zippers are mainly used for chemical, food, medicine, tea,
high -pure metal, electronic original devices, precision instruments, large
machinery, and general packaging or general packaging.
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