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Plastic Applications

Flat Bag Making Machine Application Sheet

On Flat Bag making machines as the plastic is unwound from the reel, large static charges are generated due to surface electrons migrating from one surface to another at the point of separation from the roll. As the web moves across the rollers, the static charge will increase. As the web is under tension at this time, it will not effect the manufacturing process. When the material is cut for collating in the stacking area. The surface charges on the material will cause the stack to misalign resulting in problems in packing, waste material and down time.Static charge on surface will lead to disorder of stacks, slowing down of production line and increasing of junk products in addition to loss of time and money, thus this is an undesired situation.
 

 

Converting Machine Application Sheet

On converting machines as the web is unwound from the reel, large static charges are generated due to surface electrons migrating from one surface to another at the point of separation from the roll. As the web moves across the rollers, the static charge will increase. As the web is under tension at this time, it will not effect the manufacturing process. When the material is slit, the static charge will increase. As the material is re-wound, the static charges will cause the layers to repel and prevent a record edge finish.
 

 Thermo-Forming Machine Application Sheet​


During the thermo forming process, the polymer is heated to form the product. As the product exits the mould, the material will cool causing the molecules to rub against each other which generates the static charge.

This static charge creates an electro magnetic field which in turn will attract airborne contamination onto the product. This will lead to rejects and loss of productivity.
Over Wrapper Packaging Machine Application Sheet

On an over wrapping machine, the film is charged as it un-winds from the reel. Ths charge will attract airborne contamination onto the material which results in rejects and loss of revenue. The static charge can also jam the machine as the charge becomes so high that it attracts to the machine rollers which act as an earth potential.