With the global packaging printing industry advancing rapidly, environmental compliance has become a core benchmark for enterprise sustainable development and international trade qualification. Flexographic printing, widely adopted in food packaging, carton packaging, flexible film printing and other fields, generates a large volume of ink-containing wastewater during daily operations, including equipment cleaning, roller washing and color replacement processes. This flexo ink wastewater features high chromaticity, high COD value, complex organic components and poor biodegradability. Direct discharge or improper treatment will cause severe water pollution, damage soil ecology, and bring huge environmental penalties and trade barriers to packaging printing factories. Our professional ink printing sewage treatment machine is tailor-made for packaging printing enterprises, integrating efficient purification, energy conservation, emission reduction and water recycling, helping factories achieve green production and meet global environmental protection standards.
Traditional flexo printing wastewater disposal has long plagued packaging manufacturers. Most small and medium-sized printing factories used to adopt simple sedimentation treatment or outsource wastewater transportation. Simple physical sedimentation cannot effectively remove dissolved ink pigments, organic resins and chemical additives in the wastewater, leading to substandard discharge of COD, TSS and chromaticity. Outsourced wastewater transportation not only incurs high long-term operating costs, but also fails to guarantee real-time treatment, easily causing production stagnation. More importantly, with increasingly stringent environmental regulations in Europe, Southeast Asia, the Middle East and other global markets, substandard wastewater discharge will directly lead to factory inspection failures, order cancellations and loss of international market qualifications, becoming a major obstacle for packaging printing enterprises to expand overseas business.
Our flexo ink printing wastewater treatment system solves the industry’s environmental pain points with mature and reliable integrated treatment technology. Adopting a combined process of pH automatic adjustment, flocculation precipitation, air flotation separation and precision filtration, the equipment achieves hierarchical purification of flexo wastewater. Firstly, the automatic dosing and pH adjustment system stabilizes the water quality condition, adapting to the complex and variable concentration characteristics of flexo ink wastewater. Then, high-efficiency flocculants rapidly aggregate suspended ink particles, organic colloids and pigment impurities into dense flocs. Equipped with a high-performance air flotation device, the machine efficiently separates floating pollutants, achieving a COD removal rate of up to 80%. Finally, the precision filtration system further purifies the water body, ensuring that the treated water has zero visible turbidity and stable water quality indicators.
Eco-friendliness and resource recycling are the core advantages of our equipment, distinguishing it from traditional treatment devices. Different from ordinary wastewater treatment machines that only meet discharge standards, our equipment supportshigh water recycling rate, with the water reuse efficiency reaching more than 80%. The purified water fully meets the production water standards for flexo printing machine cleaning, workshop cleaning and auxiliary production, realizing closed-loop water circulation in the factory. This greatly reduces the enterprise’s tap water consumption, effectively cutting water resource costs and minimizing industrial water waste. In addition, the equipment concentrates ink sludge pollutants through physical filtration, reducing the volume of solid waste to less than 2% of the original wastewater volume. The treated solid sludge can be centrally recycled and disposed of, avoiding secondary pollution to water bodies and soil, and truly realizing harmless and resource-based wastewater treatment.
Designed for the actual production scenarios of packaging printing factories, this wastewater treatment machine features stable operation, simple maintenance and low energy consumption. The whole machine adopts anti-corrosion PP material for the water tank and structural parts, which is resistant to chemical corrosion of ink solvents and long-term water immersion, extending the service life and reducing equipment replacement costs. The fully automatic intelligent control system realizes one-key start-stop, automatic dosing and automatic sewage discharge, requiring no special professional operators and saving labor costs. Compared with large-scale industrial wastewater treatment equipment, our modular design covers a small area, is easy to install and debug, and is suitable for small, medium and large packaging printing factories with different production scales. Moreover, the equipment operates with low noise and low power consumption, conforming to the global green production and low-carbon development trend.
For export-oriented packaging printing enterprises, environmental compliance is the key to brand competitiveness and market expansion. At present, major global markets have strict requirements on industrial wastewater discharge indicators. Our treated wastewater fully meets international environmental standards, with stable effluent COD below 30mg/L and qualified pH and turbidity indicators, helping enterprises pass factory audits, environmental inspections and customer certification smoothly. By equipping with this eco-friendly wastewater treatment machine, printing factories can completely abandon illegal discharge and high-cost outsourcing transportation, effectively avoiding environmental fines and production shutdown risks. Meanwhile, green and low-carbon production capacity can enhance the enterprise’s brand image, gain more trust from global customers, and create sustainable trade advantages.
In the era of global environmental governance and green trade, green production is no longer an optional condition but a necessary threshold for the survival and development of packaging printing enterprises. Our industrial wastewater treatment machine perfectly balances environmental protection effect, economic benefit and operational efficiency. It not only thoroughly solves the wastewater pollution problem of flexographic printing, but also helps enterprises save water resources, reduce operating costs, upgrade green production capacity, and empower enterprises to steadily expand the international packaging printing market. We provide customized equipment solutions, professional installation guidance and perfect after-sales service for global customers, committed to bringing efficient, stable and eco-friendly wastewater treatment solutions for packaging printing factories worldwide.
Post time: May-08-2026