- All
- Product Name
- Product Keyword
- Product Model
- Product Summary
- Product Description
- Multi Field Search
This inline flexographic printing machine mounts directly after a blown film extrusion line — printing brand logos, product information, size markings, recycling symbols, and certification marks onto HDPE, LDPE, and biodegradable film in one continuous process. The shaftless pneumatic plate mounting system enables quick plate changes between print designs; the hot air circulation drying system cures water-based and solvent-based inks before the film reaches the winder. Converters producing printed shopping bags, printed produce bags, branded garment packaging, and certified compostable bags with required on-film markings run this machine to eliminate the separate offline printing step — reducing film handling, registration errors, and total production time per printed kilogram of film.
Printed shopping bags / T-shirt bags: Supermarket and retail brand logos, recycling symbols, and size markings printed inline on HDPE/LDPE vest bags at 600-800 mm width — the film is printed as it exits the blown film collapsing frame, before winding or bag conversion.
Branded produce bags: Fruit and vegetable bag film with farm brand, weight marking, and country-of-origin text printed inline — eliminates the separate printing operation that adds cost and handling to thin-gauge LDPE.
Certified compostable bag markings: EN 13432 / ASTM D6400 certification logos, compostability instructions, and batch codes printed directly on biodegradable film — the hot air drying system operates at controlled temperature to avoid degrading heat-sensitive PLA/PBAT film.
Garment and retail packaging film: Brand logos, size dots, care instructions, and barcodes printed on LDPE/LLDPE garment bags at production speed — print quality consistent with retail display requirements.
| Application | Print Width | Film Material | Drying Requirement |
|---|---|---|---|
| Supermarket bag branding (1-2 colors) | 600-800 mm | HDPE / LDPE | Hot air, standard temperature |
| Produce bag text + logo | 600-800 mm | LDPE 0.01-0.03 mm | Hot air, reduced temperature for thin film |
| Compostable certification markings | 600-800 mm | PLA/PBAT biodegradable | Temperature-controlled hot air (max 50°C) |
| Garment bag branding (multi-color) | 600-800 mm | LDPE / LLDPE | Hot air, multi-pass for multi-color |
Blown film converters who currently send film rolls to an external printing service or run a separate offline flexo printing machine. Inline printing eliminates the offline step — film is printed as it is produced, with no intermediate winding, transport, or second unwind. For a converter producing 1000 tons/year of printed film, eliminating offline printing saves approximately $80-150 per ton in external printing costs or in-house offline printing labor and scrap.
Bag manufacturers who need brand printing on finished bags and currently print on bags after conversion (which is slower and has higher reject rates than printing on the film web before bag making). Printing the flat film web before bag conversion is faster and more consistent than printing on individual bags.
Producers of certified compostable bags where on-film certification markings (EN 13432 logo, batch code, material identification) are a legal requirement. The inline printer applies these markings during film production — ensuring every meter of film carries the required certification information before it enters the bag conversion process.
Converters upgrading from manual plate-mount systems to shaftless pneumatic mounting. The shaftless system reduces plate change time from 20-30 minutes to under 10 minutes — significant for shops running 4+ print design changes per week.
Producers who sell only plain unprinted film or bags. If your customers don't require printing, this machine adds cost without adding revenue. The inline printer is a value-adding module — it earns its premium only when printed film commands a higher price or when it replaces a more expensive offline printing process.
Shops running blown film lines with lay-flat width above 800 mm. The maximum print width is 600-800 mm. For wider film, a larger-format flexo printer or offline printing is required. Confirm your typical film width matches the machine's print width before ordering.
Converters who need photorealistic or process-color (CMYK) printing. Flexographic printing is suited for line art, text, simple logos, and spot colors — not high-resolution photographic images. For photorealistic print quality, rotogravure or digital printing is the appropriate technology.
Operations producing under 500 tons of printed film per year. Below this volume, the capital cost of an inline printer may not pay back against the cost of external printing services. For low-volume printing needs, manual or semi-automatic offline printers are more cost-effective.
Not sure if inline printing fits your production? Send us your film specifications and printing requirements — we'll confirm compatibility within one business day:
Your blown film width and typical production speed (kg/h)
Print design description: number of colors, print repeat length
Film material and whether printing is required for certification compliance
Printing plates mount directly onto the plate cylinder via pneumatic expansion — no mechanical shafts, no bolts, no alignment jigs. On conventional shafted systems, removing and reinstalling the plate cylinder shaft takes 20-30 minutes per design change. The pneumatic shaftless system expands to grip the plate sleeve with compressed air and releases instantly on pressure release — complete plate change in under 10 minutes. The pneumatic lock holds concentricity within 0.02 mm, maintaining print registration without manual centering adjustment. For shops running multiple print designs per week, this directly increases productive printing hours.
The impression roller and doctor blade are both pneumatically actuated with regulated air pressure — not spring-loaded or manual-lever controlled. As film thickness varies (0.01 mm to 0.10 mm), the pneumatic impression cylinder maintains constant contact pressure between the plate and the film — avoiding the light-print and heavy-print variation that spring systems produce as film gauge changes. The doctor blade's pneumatic cylinder maintains consistent ink metering pressure across the full 800 mm print width, while the low-speed oscillating motor moves the blade laterally to distribute wear evenly — extending blade life by preventing single-point groove formation.
The hot air circulation system directs heated airflow onto the printed film surface immediately after each print station — curing water-based and solvent-based inks within seconds of application. Without inline drying, wet ink transfers to the winding drum or the next film layer in the roll — smudging the print and creating set-off marks. The hot air system is temperature-adjustable: standard PE film tolerates 60-80°C drying air for fast curing; biodegradable PLA/PBAT film uses reduced 40-50°C air to prevent film softening. The circulating design recovers roughly 60% of heated air, reducing the drying system's energy draw compared to once-through hot air dryers.
Free print trial — send us your film sample and print design, receive printed film samples. We'll run your film and design on our demo line and provide:
Printed film samples showing print registration and color density
Print quality assessment: line clarity, color consistency, and drying completeness
Compatibility confirmation for your film material and thickness
No cost. You supply the film roll and artwork file. Arrange your print trial here.
Offline printing adding a full handling cycle — wind, store, transport, unwind, print, rewind. Every time film is wound and unwound, surface scratches accumulate, static charge builds, and film edges can fold or tear. Inline printing applies the print during film production — the film web passes from the blown film collapsing frame through the printer to the winder in one continuous motion. The film never sees an intermediate roll.
Print registration drift on offline machines due to film tension variation between unwind and rewind. Separate unwind and rewind tension control on offline printers creates registration errors — the print shifts relative to the film edge as the unwind roll diameter changes. Inline printing shares the blown film line's web tension control — the film enters the printer at the same tension it leaves the collapsing frame, maintaining consistent registration from start to end of the roll.
Biodegradable film softening or distorting in offline printing dryers not designed for heat-sensitive film. Standard offline flexo printers use drying temperatures optimized for PE (60-80°C) — temperatures that soften PLA film (glass transition ~55-60°C) and can deform PBAT-rich film. This inline printer's temperature-controlled hot air system is adjustable from 40-80°C — enabling safe drying for biodegradable film without heat distortion.
Doctor blade grooving from stationary blade — print streaks after a few thousand meters. A stationary doctor blade wears a single groove at the ink contact line — after 5,000-8,000 meters, the groove produces a visible unprinted streak down the film. The low-speed oscillating motor moves the blade laterally 5-10 mm during printing, distributing wear across the blade edge and extending usable blade life to 15,000-20,000 meters before blade replacement.
| Scenario | Film Material | Colors | Setup Notes |
|---|---|---|---|
| Supermarket bag branding (simple logo + text) | HDPE 0.015-0.025 mm | 1-2 colors | Single print station; standard hot air at 70°C; 800 mm width |
| Produce bag with brand + weight + origin | LDPE 0.012-0.025 mm | 1-2 colors | Reduced drying temp 55°C for thin film; shaftless plate for quick text changes |
| Compostable bag certification markings | PLA/PBAT 0.015-0.030 mm | 1 color | Drying temp max 50°C; reduced impression pressure for heat-sensitive film |
| Garment bag brand + barcode | LDPE/LLDPE 0.03-0.06 mm | 1-2 colors | Standard drying; pneumatic impression for consistent barcode clarity |
Film entry from blown film line: The film web enters directly from the collapsing frame — guided by idle rollers. The PLC synchronizes print speed with the blown film line's haul-off speed.
Ink application & metering: The ink fountain roller transfers ink to the anilox roller for controlled film thickness. The pneumatic doctor blade removes excess ink; the oscillating motor moves the blade laterally to distribute wear.
Plate cylinder printing: The shaftless pneumatic-mounted plate cylinder transfers the print image onto the film. The pneumatic impression roller maintains constant contact pressure regardless of film gauge variation.
Hot air drying: The hot air circulation system directs heated airflow onto the printed surface — curing ink within seconds. Drying temperature is adjustable per film material.
Film exit to winder or bag section: Printed film exits to the winder for roll output, or proceeds directly into an inline bag making section.
| Parameter | Specification |
|---|---|
| Printing Type | Inline Flexographic Printing |
| Plate Mounting | Shaftless Pneumatic System |
| Impression Roller Control | Pneumatic Cylinder |
| Doctor Blade Control | Pneumatic Cylinder |
| Doctor Blade Movement | Low-Speed Oscillating Motor |
| Drying System | Hot Air Circulation |
| Main Motor Power | 1.5 KW / 3 KW Optional |
| Max Printing Width | 600–800 mm |
| Max Printing Length | 1000 mm |
| Film Material | HDPE, LDPE, Biodegradable Film |
| Control System | PLC + Touch Screen |
| Installation Method | Inline with Blown Film Machine |
Location: Ho Chi Minh City, Vietnam — printed bag exporter
Machine: Inline Flexographic Printing Machine, 800 mm width, integrated with blown film line
Print product: 2-color supermarket logo and recycling mark on HDPE T-shirt bag film, 0.018 mm × 750 mm
Before: Printed HDPE film rolls purchased from external blown film + printing supplier at $1,680/ton premium over plain film. Separate QC for print quality on incoming rolls — ~3% of rolls rejected for print defects.
After: Inline printer on own blown film line. Plain HDPE pellets at $950/ton — printing cost (ink, plates, labor) ~$80/ton. Total printed film cost: ~$1,030/ton — saving ~$650/ton vs. purchased printed film. Print quality controlled at production, not at incoming inspection.
Payback: 8 months from eliminating purchased printed film premium.
15+ years manufacturing blown film and auxiliary equipment in Jiangyin, Jiangsu — machines running in 30+ countries.
CE-certified electrical and safety systems on all export machines. Each ships with wiring diagrams, PLC backup, and spare parts catalog.
Pre-delivery FAT on every machine: We run your print design on your film material at production speed before crating. Printed samples and video provided before dispatch.
2-year warranty on main drive components, 1 year on electrical. Critical spares (anilox rollers, doctor blades, pneumatic cylinders, plate sleeves) stocked — shipped within 48 hours.
Remote video-guided commissioning as standard; on-site engineer available. Training covers plate mounting, ink formulation, drying temperature setup, and registration adjustment.
HDPE, LDPE, LLDPE, and biodegradable films (PLA/PBAT blends). The hot air drying system is temperature-adjustable — standard PE films use 60-80°C drying; biodegradable films use 40-50°C to prevent heat distortion. Not suitable for PP film with high surface energy requirements or pre-laminated multi-layer films.
Each print station applies one color. The standard configuration is a single station (1 color); multiple stations can be arranged in series for multi-color printing. Each additional station adds one print unit with its own plate cylinder, anilox roller, ink fountain, and drying section. For 2-color printing, two stations are installed sequentially along the film path.
Maximum print repeat length is 1000 mm — the circumference of the plate cylinder determines the distance between repeated print impressions. For bag branding with a logo repeating every 300-500 mm, a plate cylinder of the corresponding diameter is installed. Plate cylinders are interchangeable for different repeat lengths.
Standard: 30-45 working days. Custom configurations (multi-color, non-standard width): 45-60 working days. Sea freight: Southeast Asia 7-10 days, Middle East 15-20 days, Africa 20-30 days, South America 25-35 days.
Film width range (min-max in mm), blown film line output speed (kg/h or m/min), number of print colors required, print repeat length, and film material (PE, biodegradable, or both). Share your artwork file for plate cylinder sizing confirmation.
The printer mounts between the blown film collapsing frame and the winder (or bag machine). It uses the blown film line's web tension and haul-off speed as its master reference — the PLC synchronizes print speed to the line speed automatically. Installation requires floor space of approximately 2.5 m × 1.5 m after the collapsing frame. Retrofit brackets are included for mounting to existing blown film line frames.
Daily: clean anilox roller and ink fountain. Weekly: check doctor blade edge; inspect pneumatic seals. Monthly: check plate cylinder concentricity; clean hot air filters. Doctor blade replacement every 15,000-20,000 meters. Anilox roller reconditioning every 6-12 months.
Training covers: plate mounting and changeover, ink formulation and viscosity control, drying temperature setup per film type, registration adjustment, and daily cleaning procedures. Written SOPs in English. Free refresher within warranty.
Tell us your printing requirements — we'll configure and quote within 2 working days.
Blown film width range (mm) and typical production speed
Number of print colors required
Print design description and repeat length
Film material: HDPE, LDPE, biodegradable, or mixed
Existing blown film line brand/model (for integration bracket compatibility)
Factory electrical supply and available floor space after the collapsing frame
