How Fast Is Flexographic Printing?

The speed range of flexographic printing covers multiple levels from low speed to ultra-high speed. Its actual speed is affected by multiple factors such as equipment type, material characteristics, ink technology and process requirements. The following is a detailed analysis based on the latest industry data and technological progress:
I. Core speed range and machine model differences
1. Narrow-width unit flexographic printing machine
Basic speed: 100-200 m/min, suitable for small-format printing such as labels and bills. For example, the flexographic printing unit of the Tongyin Label Modular 330 HD digital flexographic all-in-one machine can reach 200 m/min in label printing, and supports a mixed mode of 80 m/min for digital printing.
Special scenarios: The speed of the combined model with silk screen or hot stamping module is reduced to 60-70 m/min, because the coordination of multiple processes requires balancing tension and drying efficiency.
2. Satellite flexographic printing machine
Mainstream speed: 300-450 m/min, which is the main model for flexible packaging and aseptic packaging. For example, Shaanxi Beiren FCI450 satellite flexo press achieves stable production of 450 m/min in aseptic packaging printing.
Limit breakthrough: When using UV ink, the speed can reach 500-600 m/min. The central impression cylinder (diameter 300-800mm) with satellite structure provides rigid support, and cooperates with UVLED curing module (curing time ≤0.3 seconds) to achieve ultra-high-speed continuous production in film printing.
High-end model: Heidelberg Boardmaster web flexo press launches 800 m/min ultra-high-speed option for carton packaging, with a width of 1.65 meters, and an hourly production capacity equivalent to 38,000 sheets of 148 cm format paper, becoming a benchmark equipment for folding carton printing.
3. Wide-format flexo press
Conventional speed: 150-300 m/min, mainly used for corrugated cardboard pre-printing and large-format advertising. For example, in corrugated paper printing, satellite wide-format machines can achieve a stable output of 300 m/min by adjusting the central roller pressure (1-5 bar) and tension control system.
Special materials: When printing 12μm film or 10mm corrugated board, the speed may be reduced to 100-150 m/min to avoid material stretching or deformation.
2. Key influencing factors and technical optimization
1. Ink system and drying technology
Water-based ink: Drying depends on hot air or infrared, and the speed is usually limited to 200-300 m/min. For example, when DIC Marine Flex LM-R water-based ink is used in food packaging, it is necessary to cooperate with a segmented drying channel (temperature 50-80℃) and control the speed within 250 m/min to ensure the adhesion of the ink layer.
UV ink: Instant drying is achieved through UVLED curing (wavelength 365-405nm), and the speed can be increased to more than 500 m/min. For example, in aluminum foil printing, the metallic gloss of UV ink is 30% higher than that of water-based ink, and the curing energy consumption is reduced by 40%.
EB ink: Electron beam curing technology (energy 100-300keV) is used in high-barrier packaging, and the speed can reach 400 meters/minute, but the equipment investment is relatively high.
2. Material properties and tension control
Film materials: PE, BOPP and other materials with strong stretchability need to strictly control tension fluctuations (≤±0.5N). The tension stability of the satellite structure is 60% higher than that of the stacking structure, which can support high-speed printing of more than 300 meters/minute.
Paper materials: Thin paper below 120gsm is prone to wrinkling at high speeds and needs to be combined with a vacuum adsorption paper feeding system. For example, when printing cigarette packs, the satellite flexographic printing machine controls the speed at 220 meters/minute through closed-loop tension feedback.
Metal foil material: The printing speed of aluminum foil is usually 150-200 m/min. Because the ink adhesion on the metal surface is weak, corona treatment (power 3-10kW) is required to increase the surface energy to more than 40 dynes.
3. Balance between printing quality and speed
Dot replication: In 175LPI (60 lines/cm) high-precision printing, the speed needs to be reduced to 150-200 m/min to ensure clear reproduction of 1% dots. For example, in the printing of pharmaceutical labels, the satellite flexographic press achieves ±0.05mm overprint accuracy through the AI ​​visual registration system (response time ≤0.2 seconds) while maintaining a speed of 200 m/min.
Solid color blocks: The amount of ink transfer is reduced at high speeds, and the solid density may drop by 10%-15%. For example, when printing full red on plastic film, the speed needs to be controlled within 300 m/min, and a laser-engraved ceramic anilox roller (screen count 160-1200lpi) is used for precise ink supply.
III. Typical application scenario speed reference
Application field Material type Common speed range Technical points and cases
Food packaging Composite film, aluminum foil 200-450 m/min Shaanxi Beiren FCI450 satellite flexographic press achieves 450 m/min in aseptic package printing, and meets FDA standards with water-based ink.
Label printing PP synthetic paper, PET film 150-300 m/min Tongyin Label Modular 330 HD digital flexo all-in-one machine flexographic printing unit 200 m/min, digital module 80 m/min, supports variable data printing.
Pre-printed corrugated cardboard 3-layer/5-layer corrugated paper 150-300 m/min Satellite flexographic printing machine prints with low pressure (1-2 bar), the corrugated deformation is ≤0.1mm, and the speed can reach 300 m/min.
Industrial materials Metal foil, woven bags 100-200 m/min Conductive ink (square resistance ≤0.1Ω/□) is used in aluminum foil printing, and the speed is controlled at 150 m/min to ensure line accuracy.
Special printing Lottery tickets, banknotes 200-600 m/min B&R color registration system supports lottery ticket printing at 200 m/min, UV ink curing time ≤0.3 seconds, and 23-color continuous printing is achieved.
IV. Technology Trends and Speed ​​Breakthroughs
1. Intelligent Speed-up
AI Algorithm Optimization: The Mark Andy P5 model predicts material tension changes through machine learning and dynamically adjusts the parameters of each printing unit, increasing the speed by 15% while reducing the scrap rate by 10%.
Digital Twin Technology: The virtual simulation system simulates the printing process, optimizes drying parameters, and reduces the waste of trial printing materials by 70%, indirectly improving production efficiency.
2. Hybrid Printing Mode
Flexo + Digital Inkjet: The Bobst oneECG hybrid press uses the first 4-color flexographic printing of solid color blocks (speed 300 m/min), and the last 2-color digital inkjet supplements fine dots (speed 80 m/min), achieving a balance between efficiency and quality.
Flexo + Silkscreen: In label printing, after the flexographic printing of the base color (200 m/min), the silkscreen unit completes local glazing at 70 m/min to enhance the three-dimensional effect.
3. Environmental protection technology collaboration
Water-based ink upgrade: DIC's new generation of water-based ink has a 30% increase in drying speed, and can still maintain an ink layer thickness of 1.5-3μm at 300 m/min, which is suitable for food packaging.
UVLED curing popularization: Comexi F2 model integrates UVLED module, reduces curing energy consumption by 40%, supports high-speed production of 500 m/min, and reduces ozone emissions.
V. Summary and selection recommendations
Speed ​​decision basis:
Batch demand: When the annual printing volume is greater than 50 million sheets, satellite flexographic printing presses (300-450 m/min) are preferred; small batches can consider narrow-width unit type (100-200 m/min).
Material characteristics: Satellite structure is recommended for film, wide-width flexographic printing presses can be selected for paper, and metal foils need to be equipped with corona treatment units.
Quality requirements: High-precision printing (such as pharmaceutical labels) needs to be limited to a speed of 150-200 m/min and equipped with a visual registration system.
Typical machine model recommendations:
High-end high speed: Heidelberg Boardmaster (800 m/min, carton packaging).
Cost-effective choice: Shaanxi Beiren FCI450 (450 m/min, aseptic packaging).
Flexible production: Tongyin Label Modular 330 HD (200 m/min, label flexo + digital).
Future development direction:
Ultra-high-speed flexo: Heidelberg and other manufacturers are developing 1000 m/min equipment, focusing on breakthroughs in ink curing and tension control technology.
Green speed-up: The combination of EB curing and bio-based inks may enable flexo printing to achieve a double breakthrough in speed and sustainability in the field of environmental protection.
By precisely matching equipment performance, material characteristics and process requirements, flexographic printing has demonstrated significant advantages in balancing speed and quality. Especially in the field of packaging printing, its efficiency and flexibility are driving the industry's transformation towards intelligence and greenness.