Recently, Shandong Tranlin Straw New Environmental Technology Joint Stock Company Limited completed a comprehensive process upgrade across its PLA-laminated molded pulp packaging product line. To further improve product quality and meet the increasingly stringent requirements of the global sustainable packaging market, we have optimized the lamination technology, production processes, and quality control standards to enhance overall product performance, safety, and stability, helping brands replace traditional single-use plastic packaging with more sustainable alternatives.
The upgrade focuses on the core PLA film thermal lamination process. By precisely controlling lamination temperature, pressure, and bonding speed, we have significantly improved the interlayer adhesion between the molded pulp substrate and PLA film. This effectively addresses common industry issues such as peeling, delamination, and leakage when packaging hot soups, sauces, and high-fat foods. The upgraded products deliver more stable and reliable performance in demanding commercial applications.
At the same time, we have strengthened our comprehensive quality control system with multiple finished-product inspection procedures. These improvements specifically target common issues found in conventional molded pulp packaging, including surface powdering, frayed edges, and rough textures. The upgraded products feature smoother surfaces, more uniform textures, and improved overall appearance and functionality.
In terms of food-contact safety, the upgraded product range continues to follow strict green and safety principles. No PFAS (per- and polyfluoroalkyl substances) or fluorinated grease-resistant additives are intentionally added. Instead, the food-grade PLA film provides a physical barrier for effective water, oil, and leakage resistance. The products are designed for food-contact applications and can be used for a wide range of hot foods, fresh produce, baked goods, and other food packaging needs, subject to applicable food-contact regulations and standards in the target market.
From an environmental perspective, the products retain the key advantage of biodegradability. Both the natural plant-fiber molded pulp substrate and PLA film layer are designed to biodegrade under appropriate industrial composting conditions, ultimately breaking down into natural organic matter and carbon dioxide. This makes the packaging suitable for markets adopting plastic-reduction and sustainable packaging policies, including Europe, North America, and Southeast Asia, while supporting customers in developing more environmentally responsible packaging solutions.
With established R&D and manufacturing capabilities, Shandong Tranlin Straw New Environmental Technology Joint Stock Company Limited provides comprehensive customization services, including custom mold development, dimensional customization, logo embossing, and dedicated color matching. Our solutions can be adapted to a wide range of applications, including foodservice and takeaway packaging, fresh food and supermarket packaging, premium gift inserts, and bakery packaging.
Looking ahead, we will continue to focus on the sustainable packaging industry, continuously improve our manufacturing processes and product quality, and provide global customers with packaging solutions that combine high compliance, reliable performance, and flexible customization.
