The Magic of Shrink Film: From Basics to Eco-Friendly Innovation

Fundamentally, heat shrink film functions via unique thermal contraction physical properties. When exposed to appropriate heating sources such as heat guns and packaging tunnels, the polymer molecular structure inside the film contracts inward rapidly, tightly wrapping the surface of packaged objects. This physical reaction realizes dustproof, moistureproof, anti-scratch sealing, bulk bundling and anti-tampering protection simultaneously. At present, conventional mainstream shrink film materials on the market include PVC, POF, PET and OPS films. Traditional non-degradable films boast mature production technology and stable mechanical properties, yet they bring long-lasting environmental burdens. These petroleum-derived plastic products remain intact in natural environment for hundreds of years, accumulating massively in soil and ocean, and becoming a major source of global white plastic pollution.

Against this industrial backdrop, Qingdao Fullsun Biotechnology Co., Ltd. stands as a professional manufacturer dedicated to eco-friendly biodegradable packaging material research and production. The company specializes in the production of biodegradable heat shrink wrapping film, composite printed roll film, biodegradable garbage bags and biodegradable shopping bags. All series of products have obtained authoritative U.S. soil and marine biodegradation standard certifications, with verifiable and reliable environmental performance.

Apart from superior environmental performance, these biodegradable shrink films maintain excellent practical usability. They own uniform shrinkage rate, good surface transparency and outstanding printing adaptability. The composite printed roll film supports customized pattern and brand printing, perfectly adapting to multi-scenario packaging demands of food, daily chemicals, electronic goods and commodity bundling. While realizing ecological environmental protection, the products fully meet industrial packaging’s requirements for stability, aesthetics and practicality.