POF is a biaxially stretched heat Polyolefin Shrink Film. The product requires high force equipment, and the process is the main factor affecting product performance. The three complement each other. In the POF production process, the optical and Hot Perforation Polyolefin Shrink Film are adjusted mainly by controlling the temperature field and the force field during the processing.
POF production is a low temperature cold drawing two-way stretching process, and the process requires low temperature stretching, so the equipment should not be too large. The device is too large, the stability of the bubble is poor, the temperature control is high, the stretching speed is slow, and the product quality is greatly reduced. The use of small equipment, increase the extrusion output, improve the speed of the rear traction, the stability of the foam is good, the temperature control is low, the stretching speed is fast, the product quality can be doubled, the equipment is used for production, and the equipment is used properly. In the case of good process control, the output is not lower than the large equipment, and the product quality and performance are good.
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