In the production of blown film, the adverse reactions of raw materials are summarized in the following table for reference by peers.

problem

cause

Treatment

Granulation

Barrel and die have impurities

Clean the barrel and die and remix the production

Incorrect temperature

Adjust to the best temperature and make a change record on the process sheet

Raw material stays in the barrel for too long

Clean the barrel and die and remix the production

The filter has been worn

Replace filter

Poor dispersion

Uneven mixing

Remixing, control mixing time to ensure even mixing of pellets

Incorrect temperature

Adjust to the best temperature and make a change record on the process sheet

Raw material affinity

Replace the raw materials, and consider the processing affinity between the pellets in the formulation design.

The plastic machine itself has poor plasticizing effect

Replace other machine production

Frequent cuts

Incorrect temperature

Adjust to the best temperature and make a change record on the process sheet

Raw material affinity

Replace the raw materials, and consider the processing affinity between the pellets in the formulation design.

Color masterbatch ratio is too high

Reduce the color masterbatch usage ratio when performance is satisfied

Color changes

Color masterbatch is less temperature-sensitive, high temperature discoloration

Adjust the temperature and clean the raw materials of the mixed color masterbatch in the hopper




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