Engineered with multilayer barrier structures, customizable thicknesses (98μm to 115μm), and state-of-the-art spout designs for jelly, beverages, sauces, and industrial chemicals.
The global packaging landscape is undergoing a critical transition. Brands are rapidly shifting away from rigid HDPE, glass, and metal canisters towards lightweight, high-performance spout bags. This evolution is driven by the dual imperatives of carbon footprint reduction and supply chain efficiency. Spout bags (also known as spouted pouches) provide a flexible, robust alternative that reduces plastic raw material consumption by up to 60%, slashes transport emissions due to their lightweight nested nature, and offers superior evacuation of liquid products, minimizing waste.
At Dongfa Printing Co., Ltd., we sit at the forefront of this industrial revolution. Drawing upon over 35 years of professional experience in printing and packaging manufacturing, we specialize in the development and production of high-barrier liquid packaging films and pouches. Our advanced engineering allows these spout pouches to perform under extreme thermal environments, including pasteurization and retort steam sterilization processes, ensuring aseptic protection for both food and chemical commodities.
A deep dive into laminate structures, thickness configurations, and thermal barrier dynamics optimized for fluid dynamics.
Our spout pouches are constructed using sophisticated co-extrusion and adhesive lamination techniques. By combining PET (mechanical strength and high printability), BOPA/Nylon (exceptional puncture and flex-crack resistance), AL (ultimate light, oxygen, and moisture barrier), and PE/CPP (internal food-contact seal layer), we engineer structures that maintain their hermetic integrity under heavy physical loads.
We are a leading developer of liquid packaging films and bags designed to undergo thermal processing without delamination or stress cracking. Our high-temperature retort pouches tolerate steam sterilization environments of 121°C to 135°C. This is accomplished using custom-formulated aliphatic polyurethane adhesives and high-purity cast polypropylene (CPP) sealing films.
We produce pouches with exact thickness profiles customized for specific products. Our portfolio includes 98μm special shape pouches for fast-moving retail commodities, 103μm stand-up pouches for household detergents, and heavy-duty 115μm structures designed to withstand drop tests and high pressure during bulk transportation of industrial chemicals.
B2B brand positioning demands premium aesthetics alongside physical package security. To satisfy this market segment, Dongfa Printing provides customized surface printing utilizing advanced UV matte ink formulations. This technology produces a soft, non-reflective matte finish that resists scratching, scuffing, and chemicals. The UV curing process provides precise print registration and high resolution, elevating B2B brand packaging on store shelves while protecting the film layers from oil and alcohol-based product spills.
Addressing B2B compliance, supply security, and localized requirements for diverse international regions.
// Raw Material Supply & QC Standards
ENTRY_FDA_COMPLIANCE: PASSED [21 CFR 177.1520]
HEAVY_METAL_MIGRATION: < 0.01 mg/kg (ND)
OXYGEN_TRANSMISSION_RATE: < 0.5 cc/m²/24hr
WATER_VAPOR_TRANSMISSION: < 0.1 g/m²/24hr
SEAL_STRENGTH_TEST: > 55 N/15mm [ASTMF88]
BURST_PRESSURE_TEST: > 180 kPa [ASTMF1140]
// Quality Assurance Protocol Online
Our products are mainly exported to the Middle East, Southeast Asia, Africa, North America, and Japan. We understand the specific regulatory frameworks and consumer expectations that define each region:
To support B2B supply chains, Dongfa Printing provides comprehensive integration, starting with initial design and plate-making, continuing through to high-precision printing, lamination, and final bag binding. Our complete, in-house production flow reduces manufacturing lead times, minimizes cross-contamination risks, and helps stabilize the total cost of ownership (TCO) for packaging procurement teams.
Aligning packaging manufacturing with global circular economy goals and carbon reduction protocols.
The modern packaging sector is transitioning from linear consumption patterns to a circular economy model. Dongfa Printing’s corporate vision is to become a leading company in the printing industry. As part of this commitment, we prioritize environmental protection and sustainable development. We work to reduce emissions and packaging waste during manufacturing, contributing to the development of both society and the environment.
Our technical roadmap centers on three main sustainability goals:
Traditional multi-material laminate pouches (like PET/AL/PE) are difficult to recycle using standard mechanical recycling systems. We are currently testing and developing monomaterial spout bags constructed from all-polyethylene (PE) or all-polypropylene (PP) polymers. These structures use high-barrier EVOH co-extrusions to deliver high gas and moisture barrier performance while remaining fully compatible with modern PE/PP recycling streams.
We have updated our manufacturing lines to include solvent-free lamination processes. By using solventless polyurethane adhesives, we eliminate VOC (Volatile Organic Compound) emissions during fabrication, protect the safety of our factory employees, and prevent chemical residues from affecting packaged food or beverage products.
By using modern high-tensile resins, we help customers reduce material thickness (for example, moving from 115μm to 103μm) while maintaining the pouch's drop-test resistance. This reduces the total plastic volume introduced into the supply chain, lowering transport costs and downstream waste management fees.
Building long-term relationships with global brands, raw material suppliers, and distributors based on our values of integrity, professionalism, innovation, and win-win outcomes.
Direct answers from our senior engineering team to help you specify, configure, and purchase high-quality flexible spout packaging.
For high-acid liquid fillings (such as fruit juices, jellies, and vinegar-rich sauces), we typically use a high-barrier laminated laminate configuration consisting of PET / BOPA (Nylon) / AL / PE. Nylon provides high puncture and flex-crack resistance during shipping, while aluminum foil provides an almost absolute barrier against oxygen transmission (OTR < 0.1 cc/m²/24hr) and moisture ingress. This structural integrity prevents oxidation, off-flavors, and premature deterioration of your products.
Yes. We specialize in producing custom flexible packaging suitable for pasteurization and retort steam sterilization processes. Our retort-grade spout pouches utilize specialized high-temperature cast polypropylene (RCPP) as the sealant layer and retort-stable aliphatic polyurethane adhesives. These materials can withstand thermal cycles ranging from 121°C to 135°C for up to 45 minutes under pressure without delamination, seal failure, or degradation of the outer packaging films.
Preventing micro-leakage is critical when packaging low-viscosity liquids (like water, juices, and alcohol). We operate state-of-the-art spout sealing machinery that utilizes precise thermal control and pneumatic pressure application to bond the polyethylene spout flange to the interior laminate sealant layer. Additionally, our printing and bag-making machines are equipped with real-time online optical inspection equipment to detect micro-cracks or visual seal irregularities instantly inside our GMP-certified workshop.
We provide full customization for thickness and size. Our typical thickness spectrum ranges from 98μm to 115μm. We supply a variety of design options, including flat-bottom pouches with spouts, four-side sealing pouches, aluminum gusseted bags, and custom-shaped profile pouches. The pouch sizes, spout diameters, thread patterns, and tamper-evident cap designs can all be tailored to match your existing filling line equipment.
Because we operate industrial rotogravure printing presses and high-speed bag-making lines, our MOQ generally ranges from 10,000 to 20,000 units per SKU, depending on the pouch dimensions, shape, and thickness configuration. This volume ensures optimal efficiency during the design, plate-making, setup, and printing phases, helping us offer competitive per-unit pricing for our B2B clients.
All packaging materials manufactured by Dongfa Printing comply with global food contact standards, including FDA regulations (21 CFR 177.1520), EU food-contact material directives, and ISO 9001:2015 standards. We supply full trace certifications, material analysis sheets, and migration test profiles for every production batch to verify safety and regulatory compliance.
Once the artwork design is finalized and the copper printing cylinders are prepared (plate-making), the typical manufacturing lead time is 15 to 21 working days. This covers printing, dry lamination, curing (which requires 3-5 days to ensure complete adhesive curing), bag conversion/sealing, quality assurance testing, and final packaging. Shipping transit times vary depending on the destination port.
Yes. We offer options like surface printing using UV matte inks, selective glossy-matte contrasting finishes, clear window displays, and metallic/aluminum foil-revealed zones. These effects help highlight your branding on retail shelves while maintaining high physical barrier protection for the contents inside.
Select from our range of high-durability, food-grade stand-up pouches and barrier bags manufactured to your exact parameters.
DongFa Printing
