Extrusion & Post
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LDPE Toy Application
Fenómeno del problema
LDPE toys recover well after compression deformation, but brittle cracking occurs in low-temperature drops
Análisis de la causa
LDPE is flexible and extrusion-resistant, suitable for soft toys; toughness decreases at low temperature with risk of brittle cracking; coloring and additives must comply with toy safety standards; when troubleshooting on site, verify item by item according to this mechanism, and avoid blindly adjusting the machine based only on experience
Solución
① Soft toys give full play to the flexibility advantage; ② perform drop verification for low-temperature use scenarios; ③ additives comply with toy safety regulations; after adjustment, take continuous samples to verify the effect, and resume mass production only after confirming stability
Conclusión clave
LDPE is a preferred material for soft toys; the low-temperature boundary and safety compliance are two red lines; after confirming effectiveness, solidify the parameters and practices into the work instruction to prevent recurrence
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