Engineered to protect shelf life and enhance point-of-sale visibility. Premium options optimized for Bulgarian trade channels.
Bulgaria's processing industries, particularly in the agricultural, dairy, confectionery, and cosmetic sectors (such as the world-renowned rose oil products), are experiencing a significant modernization wave. To maintain competitiveness in the European Single Market, Bulgarian brands are shifting from heavy, rigid containers to lightweight, sustainable, and highly efficient flexible packaging solutions.
The Middle Sealing Bag (commonly referred to as a back sealing bag or T-seal pouch) is the backbone of high-speed automated packaging lines in Sofia, Plovdiv, and Varna. Its design allows for continuous graphics across the front face without a seam interruption, which is critical for shelf appeal in national supermarket chains like Kaufland, Lidl, and Billa.
As EU regulations on packaging waste (PPWR) and food contact compliance tighten, local manufacturers must source flexible packaging materials that guarantee oxygen, light, and moisture barrier properties while ensuring the lowest carbon footprint during transport.
All packaging supplied to Bulgaria adheres strictly to EC 1935/2004 and EU 10/2011 regulations for plastic materials intended to come into contact with food.
Our back sealing pouches are wound on precise cores or pre-formed with excellent dimensional stability, perfectly calibrated for Bulgarian automatic fill-and-seal machinery.
Dongfa Printing Co., Ltd. has over 35 years of professional experience in printing and packaging manufacturing. We specialize in the development and production of high-barrier flexible packaging films and bags. Our extensive product portfolio includes specialized liquid packaging films, spout bags, retort bags, back sealing bags, three-side seal bags, stand-up pouches, flat-bottom bags, and customized roll stock films.
Our modern manufacturing facility features a fully-equipped GMP workshop (Class 100,000 Cleanroom), ensuring that all pharmaceutical and food packaging materials are produced under strict hygienic conditions. Equipped with state-of-the-art high-speed rotogravure printing presses with integrated online quality inspection systems, we guarantee defect-free prints and precise lamination across every production run.
We are dedicated to sustainable production, minimizing environmental impacts by incorporating solvent-free lamination processes and introducing eco-friendly material structures to support the circular economy.
"Integrity, professionalism, innovation, and win-win." We leverage advanced manufacturing technology and strict quality systems to build secure supply chains for global enterprises.
Partner With UsThe selection of layers determines the shelf life and performance of a back sealing pouch. Depending on your product's requirements (e.g., nitrogen flushing, hot-filling, pasteurization, or gas venting), we customize the chemical composition of the composite film. Below is the typical engineering structure for bags exported to Bulgaria:
| Material Layer Structure | Typical Thickness Range | Barrier Properties (OTR / WVTR) | Ideal Application Scenario |
|---|---|---|---|
| PET // PE | 70μm - 120μm | Moderate Barrier | General food packaging, sugar, salt, dried pulses, and non-food chemical powders. |
| OPP // CPP / LLDPE | 60μm - 90μm | Basic Moisture Barrier | Fast-turnover bakery items, biscuits, chips, and snacks. High optical clarity. |
| Kraft Paper // VMPET // PE | 120μm - 160μm | High Barrier, Opaque | Organic herbal teas, roasted coffee beans, artisanal chocolates, and wellness powders. |
| PET // AL // LLDPE | 80μm - 140μm | Ultra-High Barrier (Zero Light) | Powdered baby milk, instant coffee, active chemical substances, and highly oxygen-sensitive ingredients. |
| PET // NY // RCPP | 90μm - 130μm | Retort / Sterilization Resistant | Ready-to-eat meals, processed pet food, pasteurized liquid bags undergoing autoclave treatment up to 121°C. |
Designed to withstand mechanical stress during international freight transit from China to Black Sea ports (Burgas/Varna) and cross-border road logistics.
Wide sealing temperature windows ensure high hermetic seal safety, preventing leaks in fine powder or liquid applications.
Supports matte finishes, spot UV, holographic effects, and metallic accents to ensure your packaging stands out on store shelves.
Bulgarian procurement teams face constant pressure to balance raw material costs with high-quality standards. Partnering directly with Dongfa Printing eliminates intermediaries, offering substantial cost advantages, premium raw materials, and high operational reliability:
By producing massive volumes of flexible packaging on high-speed rotogravure presses, we offer significantly lower unit costs compared to regional European converters. The saving is particularly apparent for high-volume FMCG products and private label goods.
Dongfa operates under ISO 9001:2015 and ISO 22000 standards. Our online digital defect-detection cameras inspect 100% of the film web at high speeds, flag misprints or pinholes instantly, and ensure that only flawless material is shipped to your facility.
We handle all export documentation, custom clearances, and package-testing reports required for smooth EU imports. Products are securely packed on standard heat-treated pallets, ready for sea freight to Varna or Burgas ports, or intermodal rail-sea routes.
Back sealing (middle sealing) pouches provide versatile solutions across several major Bulgarian growth markets:
Sofia and Plovdiv host major confectionery and dairy processors. Our pouches offer structural integrity for dry milk powders, chocolates, and wafer snacks, retaining freshness under nitrogen flushing.
Bulgaria's famous Rose Valley products, natural teas, and dried herbs require superior light and moisture barriers to lock in delicate essential oils. Our Kraft paper and aluminum composite laminate bags offer optimal preservation.
High-puncture-resistant back sealing bags are the ideal solution for packaging bulk sunflower seeds, vegetable seeds, and grain additives, preventing moisture ingress during seasonal storage.
Dongfa partners with leading brands worldwide to supply stable packaging across global supply chains.
Explore our wider range of high-barrier pouches, spout bags, flat-bottom bags, and roll films customized for industrial and retail partners.
Expert insights answering technical, regulatory, and logistics questions from professional procurement teams in Sofia and across Bulgaria.
Get a comprehensive price estimate, material compatibility assessment, and free samples for your production line. Partner with Dongfa Printing for unmatched quality and cost performance.
DongFa Printing