Engineered to retain absolute aroma, prevent oxidation, and support nitrogen flushing cycles.
Coffee degradation is primarily driven by three external factors: Oxygen ($O_2$), Moisture ($H_2O$), and Light. Roasted coffee contains volatile aromatic compounds that are highly prone to lipid oxidation, turning complex floral, fruity, and chocolatey profiles stale and rancid.
Nitrogen flushing (MAP) displaces ambient oxygen within the bag headspace with food-grade gaseous nitrogen ($N_2$). To maintain long-term flavor integrity, the residual oxygen levels inside the sealed coffee pouch must be reduced to under 1%. Achieving this threshold requires not just the flushing equipment itself, but high-barrier packaging materials that prevent oxygen molecules from passing back through the plastic films over time.
At Dongfa Printing Co., Ltd., we utilize custom multi-layer structures, incorporating materials like PET, VMPET, AL (Aluminum Foil), and PE to provide the ultimate physical shield. Our specialized lamination technologies ensure that volatile organic compounds (VOCs) remain sealed inside, while outside contaminants are blocked completely.
How our co-extruded films and laminated pouches secure a premium shelf life of up to 18–24 months.
Our structures offer an Oxygen Transmission Rate (OTR) of less than 0.5 cc/m²/24hr. Using metallic layers (VMPET or AL), we block gas transfers and maintain internal nitrogen concentration indefinitely.
Utilizing high-grade Polyethylene (PE) heat-sealable inner layers, our materials guarantee high puncture resistance and zero micro-leaks, even during aggressive transport or high-altitude distribution.
Freshly roasted coffee continuously releases carbon dioxide ($CO_2$). Our pouches are compatible with high-speed automatic degassing valves, allowing gas build-up to escape without letting oxygen in.
In the modern coffee industry, supply chain stability is paramount. Dongfa Printing’s manufacturing capability is built upon a 35-year foundation of material research and industrial packaging production. Located in China, we leverage a highly localized upstream chemical supply chain for raw resins and films, guaranteeing competitive wholesale pricing, minimal lead times, and continuous access to specialized barrier coatings.
Our GMP-standard production workshops utilize online printing quality inspection equipment, ensuring every millimeter of laminated roll stock or pre-made pouch complies with medical and high-grade food safety standards. With massive monthly capacities, we serve major roasters, private label operations, and wholesale distributors globally across the Americas, Europe, Middle East, and Asia.
How nitrogen-flushed packaging adapts to different global markets and modern packaging formats.
High-end specialty roasters require premium 1kg and 250g stand-up zipper pouches. Nitrogen flushing allows micro-lot roasters to lock in delicate origin flavors, maintaining cup quality for up to 18 months in remote retail stores.
Single-serve drip coffee bags are experiencing exponential growth. These formats feature a large surface-area-to-weight ratio, making them highly vulnerable to rapid staling. Nitrogen flushing within an outer pouch utilizing PET/VMPET/PE film is essential to maintain freshness.
The rise of high-quality liquid coffee concentrates and cold brews utilizes spout pouches and bag-in-box barrier films. Our retort steam-sterilized packaging bags preserve chemical integrity under high heat processing, combining aseptic packaging with oxygen protection.
The industry is transitioning toward recyclable and compostable high-barrier mono-material laminates (like MDO-PE) and EVOH coatings. Dongfa is actively innovating to balance the structural requirements of gas barrier layers with environmental regulations.
Learn more about our heritage, capabilities, and business philosophy.
Dongfa Printing Co., Ltd. has over 35 years of professional experience in printing and packaging manufacturing. We provide all kinds of packaging, specialize in the development and production of various liquid packaging films and bags, suitable for use in pasteurization and retort steam sterilization processes, as well as different types of spout bags and sealing cup films. Based on our printing machines equipped with online quality inspection systems and our GMP workshop, we adhere to premium materials, professional production, and strict quality control. We can provide you with superior products and unmatched service.
Since its establishment, Dongfa Printing has been committed to providing customers with efficient and high-quality printing services. Our business scope covers the entire process from design, plate making to printing and binding. Whether it's commercial printing or personalized customization, we fulfill customer needs through professional technical skills and attentive service.
Our company is dedicated to producing custom flexible packaging for food, medicine, daily-use products, and chemical products. We offer a wide range of products, including spout bags, retort bags, back sealing bags, three-side seal bags, stand-up pouches, quad-seal pouches, flat-bottom bags, zipper pouches, and customized roll films. We consistently use high-quality materials for professional production and strict quality control.
Our products are mainly exported to the Middle East, Southeast Asia, Africa, North America, and Japan, and have received widespread praise from customers. Dongfa Printing's corporate vision is to become a leading company in the printing industry. We strive for excellence, constantly innovate, and are dedicated to providing customers with better printing products and services. Additionally, we prioritize environmental protection and sustainable development, striving to reduce pollution and waste in the production process, and contributing to the harmonious development of society and the environment.
Our corporate values are "integrity, professionalism, innovation, and win-win." We uphold integrity as our foundation, professionalism as our basis, innovation as our driving force, and strive for win-win outcomes with customers, employees, and society. These values not only guide our business practices but also inspire our team to continuously move forward.
We have a professional and knowledgeable team ready to serve you. We sincerely welcome you to visit our company for further business and cooperation opportunities!
Expert answers to key technical questions from coffee roasters, industrial buyers, and global suppliers.
Industrial roll films and custom pouch varieties engineered for automated filling lines.
DongFa Printing
