In high-volume commercial printing, publishing, and automated packaging systems, the choice of substrate determines structural integrity, runnability, and print fidelity. Double Sided Paper—especially two-sided coated (C2S) and double-coated offset sheets—stands at the intersection of fiber physics and chemical engineering. To achieve optimal double-sided compatibility, paper fibers must undergo rigorous refining to yield an isotropic formation.
Our state-of-the-art manufacturing facility leverages advanced sizing press applications and online calendar stacks to control calender gloss and smoothness levels. By layering calcium carbonate (CaCO3) and kaolin clay formulations on both sides of the base sheet simultaneously, we ensure uniform ink absorption characteristics, preventing typical defects like show-through (opacity failure), ink strike-through, or dimensional curl.
Whether your application requires high-speed brochure printing, complex fold-out manuals, or multi-layered clinical packaging, our double-sided coatings are optimized to maintain high stiffness, high surface smoothness (Bekk seconds of >2000), and precise moisture balance.
Tianjin Port Free Trade Zone Jingkuo International Trade Co., LTD is a premier global enterprise integrating production, R&D, and international commerce, backed by a production history of over 15 years. Located in the industrial hub of Dongping, Shandong, China, our manufacturing plant spans a massive 60,000 square meters.
Equipped with eight high-grade paper-making and conversion lines, a state-of-the-art testing facility, and a 10-member R&D team dedicated to digital manufacturing processes, we maintain a robust annual capacity of 60,000 tons. Our strategic presence inside the Free Trade Zone enables streamlined tax-refund schemes, duty-free raw material imports, and rapid maritime shipping through Tianjin Port.
From virgin pulp copy papers to high-barrier double panel coated boards, Jingkuo serves global distributors and retail brands. Our comprehensive quality assurance protocols guarantee that each batch meets international compliance mandates, providing a reliable partnership in international trade.
Underpinned by automated online quality scanning systems (QCS) and thickness profile controls, we deliver uniform moisture levels and caliber profiling. Our double sided papers adhere to strict international ISO standards, satisfying demanding commercial offset requirements.
Optimized logistics from raw pulp procurement directly to shipping. Our location in the Tianjin Port Free Trade Zone guarantees fast vessel booking, immediate customs clearance, and reduced transshipment handling costs, ensuring on-time global supply.
We export across the Middle East, Europe, South Asia, and Africa. Jingkuo actively collaborates with regional distributors and agents to offer local warehouse solutions, ensuring secure supply and localized technical service.
We prioritize custom solution design, pre-sales consultation on caliper/basis weight, and post-sales print performance feedback. Our objective is to assist customers in solving production problems and securing brand success.
The competitive nature of the global paper industry demands manufacturing efficiency. Jingkuo's plant in Shandong leverage the cluster effect of China's paper manufacturing ecosystem. With access to major local chemicals suppliers, advanced coating pigments, and high-quality logistics hubs, we maintain lower production costs without compromising product quality.
Digital Transformation & Industry 4.0: Our 2-hectare enterprise utilizes digital tools to monitor real-time manufacturing conditions. Our 10-member R&D team implements smart sensor controls across our 8 high-grade production lines to verify sheet consistency, optimize fiber orientation, and limit energy waste.
This digital integration allows for seamless scale-up from pilot test runs to bulk 100-ton orders, ensuring that whether a client purchases offset printing papers or custom laminated packaging boards, the dimensional stability remains identical from roll to roll.
Jingkuo manufactures and customizes paper products across multiple sectors:
We specialize in custom laminations and target coatings, ensuring that dual-sided functional properties (such as moisture barriers, high gloss, or chemical coatings) are matched to your end-use demands.
In India's fast-growing education and administrative sectors, copy centers require paper with zero curling tendency at high print speeds. By supplying high-speed A4 copy paper cutters alongside double-sided copier rolls, we help Indian distributors minimize downtime and prevent feed jams under high-humidity environments.
Medical packaging requires sterilization compatibility, dust-free paper surfaces, and uniform coating structure. Our double-sided medical papers conform to strict hygiene criteria, enabling heat-sealing and peelable sterilizable pouch production for clinics across South Africa.
We adapt our soft & strong tissue rolls and packaging solutions to meet specific market demands in Sub-Saharan Africa. This includes offering high-yield, compact roll sizes that optimize container transport volume while maintaining high tensile strength and skin-friendly properties.
With stringent regulations on plastic packaging alternatives, our non-plastic barrier boards and FSC-certified double-sided papers offer European and American brands a direct path to satisfying ESG requirements while maintaining print aesthetic value.
A major international retail chain was experiencing supply blockages for double-sided promotional inserts and thermal billing paper. Leveraging our strategically placed free trade zone warehousing and robust monthly output capability, Jingkuo intervened with a custom supply schedule. We guaranteed consistent deliveries and locally managed inventory backup, preventing stock-outs during peak seasonal sales.
A regional distributor supplying cardboard packaging struggled with rising paperboard import prices. Jingkuo proposed our price-advantaged C2S SBS packaging options. By taking advantage of raw material optimizations, the distributor realized a 20% total cost reduction, while our quality control system ensured smooth runnability on their folding-carton converting lines.
As industrial printing transitions toward high-speed digital inkjet presses, the chemical formulation of paper coatings is evolving. Modern double-sided paper must adapt to both dye-based and pigment-based aqueous inks. Traditional coating layers can limit ink drying speeds, leading to offset smearing on high-capacity lines.
Jingkuo is actively testing bio-based barrier coatings that replace PE (polyethylene) films. These new coatings enable full compostability and recyclability of the paper substrate, positioning our double-sided cards as premier choices for fast-food packaging and eco-friendly shopping bags.
In addition, the demand for high-opacity, lightweight papers (down to 50 gsm) is growing in the luxury leaflet and pharmaceutical insert markets. By utilizing micro-fibrillated cellulose (MFC) structures, we can reduce overall paper thickness while maintaining high tensile strength and opacity.
To ensure safety and export reliability, our production lines adhere to international regulatory frameworks:
C1S refers to "Coated One Side," where only one surface receives a chemical clay layer, leaving the reverse side raw and porous for adhesive bonding. C2S refers to "Coated Two Sides," where both surfaces are treated to offer identical print smoothness and absorption qualities. C2S is ideal for dual-side graphics, brochures, and luxury packaging, while C1S is preferred for labels and laminated carton packaging.
Paper curls when moisture absorption is unbalanced between the two surfaces. At our Shandong factory, we utilize advanced Online Infrared Moisture meters and double-sided dampening systems. We maintain the internal relative moisture content at a tight range of 4.5% to 6.0%. This matches the average atmospheric conditions in target markets, ensuring high-speed runnability.
We offer extensive ODM customization, including base weight adjustments (from 50 gsm to 400 gsm), customized surface finishes (gloss, matte, silk, or textured), and custom sizing (roll widths up to 2600 mm, sheet sizes, and custom packaging designs). We also provide specialized barrier laminations and clay coating variations for targeted applications.
Located inside the Free Trade Zone, Jingkuo benefits from expedited customs clearance, import tax deferrals on chemical raw materials, and streamlined transport structures. This translates to lower handling costs, reduced shipping preparation times, and competitive price offers compared to factories located further inland.
Need detailed datasheets on paper stiffness, Bekk smoothness, or surface sizing chemistry? Connect with our technical support team to design the optimal ODM double sided paper substrate for your commercial converting operations.
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