Problem & Solution

Practical answers to common plastic material challenges

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LLDPE Film Gel

For LLDPE gel, the insufficient-plasticization type is the first suspect.

Molding Process LLDPE;film;gel;fisheye;plasticization

LDPE High Fluidity Utilization

Molding Process LDPE;fluidity;thin wall;hot runner;tolerance

Insufficient Puncture Resistance of LDPE Film

Puncture resistance = thickness + grade toughness.

Molding Process LDPE; film; puncture resistance; toughness; blending

LDPE Film Die Lines

Longitudinal die lines = die lip condition problem.

Molding Process LDPE; film; die line; die lip; buildup

LDPE Film Surface Orange Peel/Melt Fracture

Film surface orange peel = exit shear exceeding the limit.

Molding Process LDPE; film; melt fracture; orange peel; PPA

LDPE Film Longitudinal Splitting (Splitty)

Longitudinal splitting = orientation imbalance; adjust the blow-up ratio.

Molding Process LDPE; film; longitudinal splitting; orientation; blow-up ratio

LDPE Film Weak Edge (Slitting Edge Burst)

Edge burst = cutter + tension + orientation balance.

Molding Process LDPE; film; slitting; edge burst; blow-up ratio

High Haze of LDPE Film

Molding Process LDPE; film; haze; crystallization; air ring

LDPE Film Gel Particles - Cross-linked Type

LDPE cross-linked gel = stagnation + oxidation.

Molding Process LDPE; film; cross-linked gel; stagnation; antioxidant

LCP Holding Switchover Point Drift Affects Weight

Molding Process holding switchover weight fluctuation short shot test precision part

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