These additives are typically surfactants or metal oxide particles, which can form conductive channels between PE molecular chains and reduce the surface resistance of the material.
The cooling water circulation volume must be sufficient to maintain stable cooling efficiency and prevent local overheating from causing sealing defects.
In modern daily life and commercial circulation, flat plastic bags are a common and widely used packaging medium. One of their core advantages is their extreme lightness.
The three-dimensional dust bag's ability to stand independently is due to its scientifically designed square bottom structure, rational material selection, precise heat-sealing technology, and user-friendly functional design.
The mechanical transmission device needs to be checked to ensure that the traction speed is stable to avoid deviation in the longitudinal thickness of the film due to speed fluctuations.
Improving the puncture resistance of PO square bottom plastic bags requires comprehensive improvements in raw material selection, process optimization, structural reinforcement, and additive application.