Aseptic plastic soft packaging material preparation process

An aseptic plastic flexible packaging material preparation process includes the following steps: firstly, an air purification system is opened, and the clean area is disinfected and sterilized, so that the blown film unit and the operating environment can reach 10,000 grade standards; the nitrogen or air is filtered and purified to make purification After the nitrogen or air up to 100 standards; the melt index of 0.2 to 0.4 low-density polyethylene particles purified and added to the clean area separated from the hopper, and make it through the closed pipe into the extruder; start blown film unit, The above-mentioned polyethylene particles are indirectly heated and melted in the barrel of the extruder to provide a film and inflated and bubbled into a tubular film; after the tubular film is cooled and reeled, a flat tube sterile film finished product and a sterile bag body product are obtained. Due to the use of 0.2-0.4 low-density polyethylene raw materials and specific processes, the product has excellent physicochemical indexes such as clarity, clarity, meltability, and microbial limit, which meets the aseptic packaging requirements of antibiotics and other sterile injectable powders. , With significant social and economic benefits and environmental benefits.

Source: specialchem