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Disposable PP Dessert Container: Precision Crafted via Injection Molding
Food-Safe, Durable, and Mass-Producible
This container is manufactured using high-precision injection molding—the industry’s gold standard for food packaging—ensuring consistency, quality, and cost efficiency for large-scale production. Here’s how the process delivers a reliable, leak-proof product:
Injection Molding Process for This PP Container
We use food-grade homopolymer PP (polypropylene) (BPA-free) and a specialized mold design to achieve its functional and aesthetic features:
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Material Preparation:
PP pellets (no pre-drying needed) are fed into the injection machine, melted at 220–240°C (within PP’s 160–175°C melting range, below its 350°C decomposition point).
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Mold Design & Clamping:
The steel mold (cavity + core) is engineered with 50–90°C temperature control (higher for dimensional accuracy) and precise venting (0.025–0.038mm deep vents) to avoid air bubbles.
The clamping unit applies 3800 t/m² force to seal the mold, preventing flash (excess plastic) during injection.
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Injection & Packing:
Molten PP is injected at 1500–1800 bar pressure (high speed to reduce stress) into the mold, filling the cavity (including the lid’s cloud-shaped groove). A 80% holding pressure ensures uniform wall thickness (critical for leak resistance).
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Cooling & Ejection:
Water-cooled channels in the mold solidify the PP in seconds; the finished container is ejected via pins (no damage to the semi-transparent surface). Post-processing (hot water treatment) prevents shrinkage.
Why Injection Molding Matters for This Product:
Consistency: Each container matches tight tolerances (e.g., lid-seal fit) for universal usability.
Complexity: Enables the integrated lid’s anti-leak structure and decorative groove—features hard to replicate with other processes (e.g., thermoforming).
Cost-Effectiveness: Low per-unit cost at high volumes (ideal for cafes/dessert shops) while maintaining food safety standards.
This process guarantees a reliable, lightweight, and food-safe container that protects your treats and elevates customer experience.
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Disposable PP Dessert Container: Precision Crafted via Injection Molding
