Let’s speak about a Flexo Printing Press for Pre-Made Bags, a specialized sheet-fed flexographic press built to print on already-made paper or plastic bags, woven/non-woven bags, and thin-board cartons (e.g. pizza boxes or other light cardboard packaging).
It’s designed for small to medium production runs (not necessarily mass-production roll-to-roll), with 1 to 3 printing colors available — enough for logos, brand names, basic graphics, or product information.
How it works — main features
Bag feeding — Bags can be fed manually (operator places each bag at an index position), or optionally via an automatic “stream feeder”: a hopper holds up to ~200 bags, and suction pads pick them one by one to place onto a conveyor belt. The conveyor moves the bag through the printing section.
Printing & registration — The bag travels on a flat belt through the printing unit(s). The press uses standard flexographic plates plus anilox/wiper rollers for ink transfer. Registration accuracy is high: sheet positioning ±1 mm, color registration ±1 mm.
Ink compatibility — The press can use water-based, alcohol-based or solvent-based inks, providing flexibility depending on material (paper, plastic, etc.) and finishing requirements.
Throughput & capacity
Max bag size: ~525 mm wide × 600 mm long
Max printable area: ~480 mm × 500 mm
Handles bag handles up to 15 mm thick, and handle height up to 120 mm — useful for bags with handles.
Speed: up to ~900–2400 bags/hour depending on setup and materials.
Post-print outfeed/drying — After printing, bags are collected either on a sliding table (standard) or — optionally — on rotating plates, which give additional drying time before stacking. Useful especially if inks need time to dry or if using slower-drying ink types.
What you can print / Which materials are supported
The machine supports a wide variety of substrates and bag types, including:
· Flat-handle or twisted-handle paper shopping bags (kraft, colored, white)
· Paper wine-bags, satchel bags, square-bottom bags (with or without handles)
· Plastic bags (various flexible films), woven and non-woven bags, thin corrugated board or light cardboard (e.g. pizza boxes, thin cartons)
This versatility makes the press suitable for packaging producers, retail-bag manufacturers, promotional/gift-bag makers, small-run converters — or anyone needing to print small/medium batch bag orders with custom graphics, logos, or branding.
Why this machine can be a smart investment
· Flexibility & versatility: one machine covers different bag formats and materials (paper, plastic, woven, non-woven, light board), reducing the need for multiple specialized presses.
· Suitable for small/medium runs: ideal for custom jobs, seasonal packaging, limited editions, or small brands — not just high-volume industrial runs.
· Good registration & quality: ±1 mm accuracy for positioning and color registration ensures reliable print quality even for multicolor graphics.
· Low setup cost compared to full roll-to-roll or central-drum systems: simpler sheet-fed design — might require less infrastructure and lower running costs.
· Simple feeding / optional automation: manual feeding works for low volume; optional automatic feeder helps scale up throughput when needed.
Who is this machine best for
· Manufacturers producing custom paper or plastic bags (shopping bags, retail bags, gift bags, wine bags, etc.).
· Printing shops or brand owners needing small-batch printing, without the commitment of large-volume roll-to-roll printing.
· Companies that produce a varied bag portfolio (paper, plastic, woven, board), and need a versatile press to handle different substrates.
· Businesses needing cost-effective printing solution for branding or packaging, with moderate throughput and good print quality.
The Flexo Printing Press for Pre-Made is a practical, flexible, and efficient solution for companies that need to print on already-made bags (paper, plastic, woven, light board) — especially when dealing with small to medium production runs, diverse bag types.
It strikes a balance between print quality, versatility, and cost efficiency, making it a good choice for bag manufacturers, converters, and brands aiming to offer custom-printed bags without investing in heavy, large-scale roll-to-roll printing systems.
