Engineered to optimize structural integrity, puncture resistance, and oxygen/moisture barrier parameters for Vietnam's industrial and retail packaging sectors.
In recent years, Vietnam has rapidly transitioned into one of the most prominent manufacturing hubs in Southeast Asia. Boosted by bilateral trade agreements, the CPTPP, and the EVFTA, global brands are shifting production lines to dynamic Vietnamese industrial provinces such as Bình Dương, Đồng Nai, and Bắc Ninh. This shift has triggered an unprecedented surge in demand for high-grade flexible packaging, specifically middle sealing bags (commonly known as back sealing bags or fin-seal pouches).
Middle sealing bags are widely used due to their robust structural configuration, cost-efficiency, and maximum print area utility. The back seam design eliminates side seals, allowing seamless graphic design wrapping. Despite this rising demand, localized production in Vietnam often faces technological bottlenecks, including inconsistent polymer extrusion tolerances, limited high-barrier film raw material accessibility, and lack of advanced online defect inspection equipment. As a result, Tier-1 multinational operations in Vietnam rely on strategic cross-border partnerships to maintain packaging integrity.
The manufacturing architecture of a back sealing bag determines its protective capacity. At Dongfa Printing, we employ a scientific layering method that coordinates materials to optimize moisture vapor transmission rates (MVTR) and oxygen transmission rates (OTR).
By using co-extrusion technology, we prevent delamination even under high autoclave temperatures. Our bags maintain molecular stability under pasteurization and retort steam sterilization processes, preventing leaks and retaining aroma.
While Vietnam is building its industrial packaging base, China's packaging sector remains ahead due to mature Industry 4.0 integration. Dongfa Printing Co., Ltd., with over 35 years of professional printing and packaging manufacturing experience, bridges the gap for global firms operating in Vietnam.
Our facility operates under GMP-certified cleanroom conditions, utilizing high-speed rotogravure printing presses equipped with automatic online inspection systems. This technology detects micro-defects, color variations, and sealing inconsistencies in real-time at speeds up to 300m/min. By sourcing from our automated production lines, Vietnam-based businesses benefit from stable pricing, high material consistency, and rapid production turnaround, mitigating local capacity and material quality limits.
The practical application of back sealing bags in Vietnam spans across several key growth sectors:
Vietnam is a leading exporter of Robusta coffee and cashew nuts. Middle sealing bags with integrated degassing valves protect these products from oxygen damage and moisture, preserving product freshness during shipping.
With extensive coastlines and seafood processing zones in Da Nang and Nha Trang, packaging must withstand sub-zero temperatures. Our custom frozen-food bags resist punctures and thermal cracking down to -40°C.
Vietnam's fast-moving consumer goods sector relies on high-speed automated packaging machines. Our uniform roll stock and back-seam pouches ensure smooth processing, low scrap rates, and airtight seals.
Whether for retail markets in Ho Chi Minh City or exports to the EU and US, Dongfa Printing provides flexible barrier solutions that comply with international FDA, SGS, and ISO certifications, smoothing the path for regulatory compliance.
Explore our complete range of flexible packaging materials, engineered for automatic packaging lines and specialized sterilization processes.
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. Base on the printing machine with online quality inspection equipment and GMP workshop, we adhered to excellent materials, professional production and strict quality control. We can provide you superior products and best 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 can fulfill customer needs with our 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.
We work closely with leading brands across the Middle East, Southeast Asia, Africa, North America, and Japan. Our commitment to sustainability, reduced waste, and quality control has helped us build reliable partnerships worldwide.
Talk to our technical engineering team to customize barrier levels, film thickness, and layout sizing tailored to your processing machinery.
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DongFa Printing
