Summary of adverse reactions and treatment measures of blown film raw materials
Publish Time: 2023-10-16 Origin: Site
During blown film production, the adverse reactions of raw materials are summarized in the table below for reference.
Problem | Cause | Treatment |
Granulating | There are impurities in the barrel and die | Clean the barrel and die, and re-mix materials for production |
Incorrect temperature | Adjust the temperature to the optimal state and make modification records on the process sheet | |
The raw materials stay in the barrel for too long | Clean the barrel and die, and re-mix materials for production | |
The filter is worn out | Replace filter | |
Poor dispersion | Uneven mixing | Mix the ingredients again and control the mixing time to ensure that the pellets are evenly mixed. |
Incorrect temperature | Adjust the temperature to the optimal state and make modification records on the process sheet | |
Poor raw material affinity | Replace raw materials. Processing affinity between pellets needs to be considered when designing formulas | |
The plasticizing effect of the extruder machine itself is poor | Replace other extruders for production | |
Frequent outage | Incorrect temperature | Adjust the temperature to the optimal state and make modification records on the process sheet |
Poor raw material affinity | Replace raw materials. Processing affinity between pellets needs to be considered when designing formulas | |
Masterbatch ratio is too high | When performance is met, reduce the proportion of color masterbatch used | |
Color change | The color masterbatch is less exposed to temperature and changes color at high temperatures. | Adjust the temperature and clean the mixed raw materials in the hopper
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