A breakthrough has been achieved in dry-process production technology, marking the pulp molding industry's entry into an era of zero wastewater discharge.
Release time:
2025-12-29
The domestic pulp molding industry has once again achieved a breakthrough in technological innovation. Companies within the industry have successfully developed and implemented a dry-process manufacturing technology, completely addressing the industry’s longstanding pain points of high water consumption and substantial wastewater discharge associated with traditional wet-process production. This breakthrough has enabled zero wastewater discharge and zero waste generation throughout the entire pulp-molding tableware production process, truly achieving green production across the entire value chain.
The domestic pulp-molding industry has once again achieved a breakthrough in technological innovation. Enterprises within the industry have successfully developed and implemented a dry-process manufacturing technology, completely addressing the industry’s longstanding pain points of high water consumption and substantial wastewater discharge associated with traditional wet-process production. This breakthrough has enabled zero wastewater discharge and zero waste generation throughout the entire production process of pulp-molding tableware, truly realizing green production across the board. Traditionally, the wet-process method consumes 100 to 150 tons of water per ton of pulp-molding products produced, generating large volumes of wastewater containing fibers and chemical additives—wastewater that is costly to treat. In contrast, the dry-process technology employs solid-state fiber-forming techniques, eliminating the need for water consumption during production and thus preventing wastewater pollution at its source. In terms of product performance enhancement, relevant enterprises have added novel materials such as nanocellulose and bio-based waterproofing agents to their raw materials, significantly upgrading the performance of newly developed pulp-molding tableware. According to testing by authoritative institutions, the waterproof duration of these products has been extended to 72 hours, ensuring no leakage even when used to hold soupy foods. The temperature resistance has been improved to 150°C, allowing direct use in microwave heating and meeting diverse application requirements. Meanwhile, the products exhibit an antibacterial rate of 99%, fully complying with the highest safety standards for food-contact materials. To support the dry-process production technology, enterprises have introduced fully automated production lines featuring PLC-controlled vacuum suction molding technology coupled with a clean-energy recycling heating and curing system. This not only enhances production precision but also achieves highly efficient energy utilization. Data shows that the new production line’s efficiency is 40% higher than that of traditional wet-process lines, with each line capable of producing up to 180,000 units per day, and the product qualification rate remaining stable above 96%. Currently, the dry-process technology has obtained multiple national patents, and related production lines have officially begun operation. The products are primarily supplied to high-end catering businesses and chain bakery brands in the Yangtze River Delta and Pearl River Delta regions. Industry officials indicate that the large-scale adoption of the dry-process technology not only reduces enterprises’ environmental treatment costs but also boosts their market competitiveness. Several overseas buyers have already expressed interest in collaborating with these companies. Industry experts point out that this breakthrough in dry-process technology will drive a transformation in the pulp-molding industry’s production model, helping the industry achieve a higher level of green development and providing strong support for the realization of the “dual-carbon” goals.
