Flexographic printing, also known as flexible relief printing, is one of the four mainstream printing processes. Its core lies in the use of elastic raised printing plates and the realization of quantitative ink supply via anilox rollers, which transfers the graphic and text information on the plates to the surface of the substrate. This process combines environmental friendliness and adaptability, being compatible with green inks such as water-based and alcohol-soluble inks, and thus meets the core demand for eco-friendly printing across various industries. The stack-type flexo printing machine is a typical equipment representative of flexographic printing technology.
Core Features of Stack-Type Flexo Printing machines
With six core advantages, the stack-type flexo printing press has become the preferred equipment in the packaging and printing sector of various industries.
Space-saving vertical design: It can adapt to various factory layouts and significantly reduce space occupation costs.
High-efficiency double-sided printing: It can synchronously complete graphic printing on both front and back sides, effectively shortening production processes and improving overall productivity.
Wide substrate compatibility: It can handle paper ranging from 20–400 gsm, plastic films (PE, PET, BOPP, CPP) from 10–150 microns, composite laminates containing 7–60 microns aluminum foil (including aluminized films and paper/film composite structures), and can also be optionally equipped with a dedicated printing module for 9–60 microns aluminum foil as required.
Standard water-based inks for eco-friendly printing: It avoids harmful residues from the source and complies with green production standards.
Cost-effective and high-return investment: It helps enterprises achieve dual improvements in production capacity and quality with lower input.
Simple and reliable operation: It reduces the rate of manual operation errors and ensures long-term stable operation of the equipment.
When people mention stack-type flexo printing machines, most immediately think of the printing of various commodity packaging bags. In fact, this printing equipment, which integrates high efficiency, environmental friendliness, and precision, has long broken through the single packaging scenario and become a "must-have equipment" in multiple niche fields such as food and beverage, paper products, and daily chemical hygiene, playing an irreplaceable role in ensuring product quality and enhancing brand recognition.
I.Food and Beverage Flexible Packaging: Dual Guarantee of Safety and Customization
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In the food and beverage industry, flexible packaging is both the primary defense for product freshness and quality and a vital brand communication carrier. For high-demand packaging like beverage labels and snack bags (e.g., potato chip bags), printing safety and aesthetics standards are exceptionally strict, and the stack-type flexo press—as a roll-to-roll web printer—serves as their core production support.
On one hand, thestack flexo press works seamlessly with food-grade eco-friendly inks, maintaining uniform pressure and controllable temperature during printing to prevent ink migration and substrate damage from the source, meeting strict food packaging hygiene requirements. For snack bags, it adapts to light-proof, moisture-proof substrates (aluminized films, BOPP) and ensures prints resist fading/ink migration even post high-temperature sterilization. For beverage plastic labels, it delivers high-quality results on shrink films and other plastic webs, with printed labels able to withstand subsequent labeling processes, cold chain transit, and shelf display for consistent packaging quality.
On the other hand, its rapid multi-color group switching enables precise reproduction of brand logos, selling points, and nutrition info, while fulfilling custom batch/spec needs. For snack bags, it vividly restores brand IPs and taste highlights in bright hues, helping products stand out on shelves.
II.Paper Bags and Food Service Paper Containers: Primary Printing Workhorse in the Eco-Protection Era
The central impression system, working together with a reinforced machine frame, offers a solid foundation for holding registration accuracy steady, even when the press is running at high speeds. With this structural stability, color alignment remains consistent and printed details stay clear and sharp across a wide range of materials, including films, plastics, aluminum foil, and paper. In practice, this creates a controlled printing environment that supports reliable results on different flexible substrates, allowing packaging converters to achieve the level of precision and visual quality expected in premium flexographic production.
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Conclusion
From the standpoint of the packaging and printing industry, the daily necessities, and high-volume food packaging has drastically changed production expectations. Customers are no longer satisfied with long lead times or inconsistent color performance across large batches. In many factories, traditional printing lines that still rely on manual roll changes are gradually becoming a real production bottleneck — every stop not only interrupts workflow but also increases material waste and weakens competitiveness in a market where speed means survival.
This is why double-station non-stop unwinder and rewinder technology has drawn so much attention. When paired with a full-servo, gearless drive system, the result is a production line capable of maintaining stable tension, seamless roll-to-roll transitions, and continuous high-speed output without stopping the press. The impact is immediate: higher throughput, shorter delivery cycles, and far lower waste rates — all while preserving consistent print quality from the first meter to the last. For enterprises printing film packaging, shopping bags, or large-series commercial packaging, a CI flexo press with this level of automation is no longer a simple equipment upgrade; it represents a strategic step toward a more resilient and scalable manufacturing model.
The industry is clearly moving toward automation, intelligent control, and greener production methods. In this context, CI flexographic presses equipped with both non-stop dual-station roll change and full-servo gearless drive are rapidly becoming the new baseline standard rather than an optional premium. Companies that move early to implement this type of technology often find themselves gaining a real and lasting edge in day-to-day production — from more stable output quality to quicker turnaround on customer orders and a lower production cost per unit. For printing manufacturers who want to lead the market rather than follow behind it, investing in this class of equipment is essentially a decision to strengthen future competitiveness and support long-term, sustainable growth.
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Post time: Dec-12-2025