First, blocking the net
Reason 1: The texture of calcium carbonate in the blown film filling masterbatch is poor.
Response: Re-select high-standard calcium carbonate

Reason 2: Lubricant selection is not in place
Solution: Replace the lubricant substrate or adjust the ratio

Reason 3: The material is damp
Solution: Dry the raw material or use it after regranulation
 
Second, the film surface is blooming
Reason 1: Adding blown film filler masterbatch for HDPE to LDPE
Solution: Replace blown film filler masterbatch for LDPE

Reason 2: The blown film filler masterbatch is not properly formulated, and the dispersion of raw materials is not good.
Solution: Adjust the formula

Reason 3: The temperature of the extruder is not in place and the plasticization is not good.
Solution: Adjust the temperature

Reason 4: The extruder is not properly constructed
Solution: increase extruder compression ratio

Cause 5: The die pressure is too small
Solution: Adjust the die size and choose the appropriate cavity pressure

Third, the film tear strength is impaired
Reason 1: The inflation ratio is not up to standard
Solution: Replace the die to ensure sufficient blow ratio

Reason 2: Technical error in bubble shaping
Coping method: Reasonably adjust the shape of the film planer

Reason 3: improper drafting ratio
Coping method: redeploying the ratio

Reason 4: The material of the blown film filler masterbatch is not up to standard
Solution: Replace the blown film filler masterbatch