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PE masterbatch blown film process common problems

Categories: Latest NewsStars: 3Stars Visit: - Release time: 2015-08-24 14:08:00
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 The packing bag of shandong LuYan masterbatch company produces white masterbatch is based on low density polyethylene (LDPE matrix materials. High quality rutile type titanium pigment HeJinPin high grade poly scattered polythene wax additives and senior white masterbatch. It can produce good surface performance and printing performance of high quality film. Such as packaging film. Protective film. Also applied to the mixture color. And keep the physical properties being shaded. May have some problems in the process of packaging film production, we need to be familiar with and will be resolved in a timely manner, what's the problem?
A. Clouds shaped film surface
The reason:
More than 1. Masterbatch filling (fill the mesh is not carefully), thread set combination is too weak cause extrusion screw too fast, or skin temperature too high or too low causing masterbatch dispersion
2. The improper selection of polyethylene, such as A.B.C grade PE reworked material, melting fat too high or too low melting point, reworked material production mesh is too low
The solution:
Replace the high mesh packing or reduce filling amount, strengthen the thread set of combinations, properly adjust the die head, body temperature, choose appropriate polyethylene resin, die head hook and fine.
2. The film flatness is poor, brightness difference, sealing is not strong
Produce factors: poor flatness) color masterbatch filling is overmuch, (brightness difference), color masterbatch carrier option is undeserved, carrier too little, color masterbatch containing wax sealed (weak) is too high
Solution: (poor flatness) reduce color masterbatch filling, (brightness difference) choose suitable carrier or increase content of carrier, sealed (weak) to reduce color masterbatch PE wax content, adjust the sealing machine pressure and temperature
Keywords in the article: PE masterbatch