Analysis and solution of common problems in blowing film (10(injection molding products)

2023 12/11

10. The transverse tensile strength of the film is poor

Reason 1: The cooling speed of the cooling wind ring is too slow;

Reason 2: The traction speed is too fast, and the difference between the blowing ratio is too large, so that the longitudinal fibrosis is generated, and the transverse strength is worse.

solution
(1) Appropriately reduce the traction speed to match the blowing ratio;

② Increase the air volume of the air ring, so that the blown film is cooled quickly, and avoid high

The temperature at which the elastic state is stretched is oriented.

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