High-barrier roll films, stand-up spout pouches, and food-grade packaging materials manufactured in our certified cleanrooms.
Providing definitive solutions to prevent lipid oxidation, moisture intrusion, and organic compound degradation in high-grade specialty coffee beans and soluble powders.
Dongfa Printing Co., Ltd. brings over 35 years of engineering experience in flexographic and high-definition rotogravure printing, extrusion laminating, and material science. Our cleanroom facilities run online computerized defect-detection cameras to guarantee hermetic seals and bubble-free lamination across all product classes. We design packaging systems optimized for sterilization, including retort processes, pasteurization, and demanding industrial logistics.
A granular look at the polymers, metallized barriers, and functional sealants that construct a high-performance coffee bag.
Polyethylene Terephthalate (PET) and Biaxially Oriented Polypropylene (BOPP) form the outer substrate. They offer high tensile strength, outstanding thermal resistance during sealing, and an ideal surface for high-definition gravure ink transfer.
Vacuum Metallized PET (VMPET), pure Aluminum Foil (AL), and Nylon (NY) serve as absolute barriers. Nylon increases puncture resistance for coarse coffee grounds, while aluminum and VMPET minimize Oxygen Transmission Rates (OTR) and Water Vapor Transmission Rates (WVTR).
Cast Polypropylene (CPP) and Linear Low-Density Polyethylene (LLDPE) provide excellent seal strength at lower melting temperatures. EVA (Ethylene-Vinyl Acetate) copolymer elements are integrated for high-speed easy-tear features and chemical adhesion stability.
A strategic overview of the shift from multi-material non-recyclable plastics to circular, mono-polymer, and high-barrier compostable alternatives.
As global packaging regulations tighten (such as EU PPWR and EPA mandates), coffee roasters and consumer packaged goods (CPG) brands are transitioning toward sustainable design. Historically, aluminum foil (AL) provided the ultimate barrier, but its composite structure is difficult to recycle in municipal waste streams. The industry is rapidly moving toward mono-material structures (such as all-Polyethylene laminated films) which can be recycled under Code 4 (LDPE).
Adapting packaging configurations to meet the regulatory, cultural, and distribution needs of different global target markets.
Primary Trend: High emphasis on flat-bottom bags, zippered stand-up pouches, and recyclability. Roasters demand carbon-neutral production, EVOH non-foil barriers, and integrated degassing valves (such as Goglio or Wipf) to handle the off-gassing of freshly roasted single-origin coffees.
Primary Trend: Ultra-premium finishing, high-definition matte rotogravure graphics, and precise easy-tear properties. Smaller single-serve drip bags (using ultrasonic sealing) and sealing cup films for specialty RTD (Ready-to-Drink) cold brew operations dominate the landscape.
Primary Trend: High-heat and high-humidity resistance. Lamination structures must be optimized for retort processes or pasteurization to withstand extreme temperatures. Heavy-duty aluminum composite laminates (PET/AL/PE) are commonly utilized to prevent thermal degradation of instant coffee powder.
Industrial printing expertise meets strict quality control: 35 years of engineering flexible barrier packaging.
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 advanced printing machinery equipped with online quality inspection systems and our state-of-the-art GMP workshop, we adhere strictly to premium raw material selection, professional production processes, and strict quality control. We provide you with superior products and premium service.
Our service scope covers the entire lifecycle: from graphic design and precision plate making to high-definition printing and binding. Whether it is commercial printing or personalized custom runs, we fulfill client needs with technical expertise 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.
Collaborating with global brands and suppliers to deliver reliable, food-grade certified flexible packaging systems.
Critical engineering and supply chain questions answered by Dongfa's technical director.
For our pure aluminum foil laminations (PET/AL/PE), the Oxygen Transmission Rate (OTR) is typically <0.05 cc/m²/24hr/atm, and the Water Vapor Transmission Rate (WVTR) is <0.05 g/m²/24hr. For our metal-free eco-friendly or VMPET configurations, OTR is maintained under 0.5–1.0 cc/m²/24hr to guarantee a shelf life of over 12–18 months depending on roast degree.
Freshly roasted coffee beans release carbon dioxide gas for days after roasting. Without a one-way degassing valve, the gas would accumulate and cause the airtight package to burst. The valve allows the $CO_2$ to escape while preventing oxygen and moisture from entering, maintaining freshness.
We use advanced extrusion and adhesive laminating technologies in our GMP workshops. Our packaging films undergo heat-seal strength testing and burst testing. Additionally, our high-speed printing machinery features online inspection systems to identify and filter out microscopic seal anomalies or film impurities instantly.
Yes. We supply mono-PE recyclable films and biodegradable laminations (such as PLA and PBS-based films). These materials provide high barrier performance for dry coffee powder, beans, and liquids while meeting regional environmental and packaging waste regulations.
Explore our specialized range of high-barrier films, automatic packaging roll stocks, and custom multi-layer laminate configurations.
DongFa Printing