Summary of adverse reactions and treatment measures of blown film raw materials

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