Biodegradable raw materials are continuously optimized to better suit the blown-film process.

Release Date:

2026-09-17

Author:

Han Shen

Source:

The application scope of biodegradable polymer materials continues to expand, and the associated blown-film processing technologies are being steadily refined and optimized.

The application scope of biodegradable polymer materials continues to expand, and the corresponding blown‑film processing technologies are being steadily refined. Biodegradable resins differ from conventional PE resins in their processing characteristics, imposing distinct requirements on screw plasticization, die flow‑channel design, and temperature‑and‑air‑flow control in the cooling air ring. Equipment manufacturers are continuously fine‑tuning machine parameters, upgrading screw plasticization profiles, and optimizing the logic for regulating air‑ring airflow, thereby mitigating common issues in processing degradable materials, such as film breakage and uneven thickness. Many production lines now support co‑extrusion of biodegradable and conventional polymers, enabling factories to flexibly adjust product formulations. Meanwhile, downstream producers collaborate with equipment suppliers to conduct on‑site trial runs, gather real‑world production data, and drive continuous advancements in both equipment and process integration.

Keywords:

Demand in the multi-layer co-extruded film market continues to grow.

The application scope of online thickness measurement and control systems has been further expanded.

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The application scope of online thickness measurement and control systems has been further expanded.

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