Hoenle jetCURE UV/IR/LED High-Performance Curing System for Industrial Inkjet Printing

Overview

The Hoenle jetCURE UV/IR/LED High-Performance Curing System is an engineered solution for industrial-scale inkjet, flexographic, and digital printing processes requiring precise, scalable, and application-tailored photopolymerization and thermal drying. Unlike conventional fixed-spectrum lamps, the jetCURE platform integrates three distinct curing modalities—high-intensity UV LED, broadband infrared (IR), and hybrid IR–hot air—within a modular, linear architecture designed for seamless integration into continuous web or sheet-fed production lines. Its core operating principle relies on wavelength-selective photochemical initiation (UV LED) and controlled convective-radiative energy transfer (IR/air), enabling simultaneous optimization of surface cure integrity, through-cure depth, and substrate thermal budget. This multi-technology approach addresses critical challenges in modern functional printing: minimizing thermal stress on heat-sensitive substrates (e.g., PET, thin films, polymer electronics), achieving full crosslinking of high-pigment-load inks, and ensuring repeatable adhesion on low-energy surfaces—all while maintaining line speeds exceeding 100 m/min.

Key Features

• Modular linear design: Units scalable from 100 mm to over 2,000 mm active length; configurable as single or multi-zone systems for process zoning.
• UV LED engine: Precision-wavelength emitters (365 nm, 385 nm, 395 nm, 405 nm ±10 nm); dual-wavelength mixing and independent intensity control per channel for spectral tuning.
• IR drying module (jetCURE IRA): Air-cooled, medium-wave IR emitter optimized for water-based inks and aqueous coatings; compatible with pure IR or IR/hot-air hybrid operation for enhanced moisture evaporation kinetics.
• Dynamic power management: Electronic dimming (0–100%) with real-time feedback control; integrated shutter system for millisecond-level exposure timing and energy dosing accuracy.
• Thermal management architecture: Forced-air cooling for LEDs and IR emitters; thermal sensors at critical junctions ensure stable output across ambient temperatures from 15–40 °C.
• Mechanical adaptability: Mounting interfaces compliant with standard industrial frame rails (ISO 2768-mK tolerances); optional vibration-damped suspension for high-speed web handling.

Sample Compatibility & Compliance

The jetCURE system supports a broad range of printable substrates—including polymeric films (PET, PP, PE), paperboard, metallized foils, flexible PCBs, and textile composites—without requiring preheating or post-cure ovens. Its spectral flexibility enables compatibility with acrylate-, epoxy-, and vinyl ether–based UV formulations, as well as waterborne acrylics, PVA dispersions, and hybrid latex systems. All modules comply with EU Machinery Directive 2006/42/EC, Electromagnetic Compatibility Directive 2014/30/EU, and RoHS 2011/65/EU. UV LED units meet IEC 62471 Photobiological Safety classification (Risk Group 1). Manufacturing adheres to ISO 9001:2015 quality management protocols; documentation packages support GLP/GMP audit readiness for regulated packaging and medical device printing applications.

Software & Data Management

System operation is managed via Hoenle’s proprietary jetCONTROL interface—a Windows-based engineering software supporting Ethernet/IP and Modbus TCP communication. It provides real-time monitoring of irradiance (mW/cm²), dose (J/cm²), emitter temperature, and shutter actuation status. Process recipes—including wavelength combination, power ramp profiles, dwell time, and zone-specific setpoints—are stored with user-defined naming and version control. Audit trail functionality logs all parameter changes with timestamp, operator ID, and IP address—fully compliant with FDA 21 CFR Part 11 requirements for electronic records and signatures. Optional OPC UA gateway enables integration into MES/SCADA environments for traceability in Industry 4.0 workflows.

Applications

• High-speed inkjet printing: Full-cure of pigment-rich CMYK and white inks on rigid and flexible packaging substrates.
• Functional ink processing: Sintering of silver nanoparticle inks for printed RFID antennas and flexible circuit traces.
• Coating consolidation: Crosslinking of barrier coatings (SiOx, AlOx precursors) and anti-scratch topcoats on optical films.
• Adhesive activation: Instant curing of pressure-sensitive adhesives (PSAs) and laminating resins in roll-to-roll lamination.
• 3D inkjet additive manufacturing: Layer-by-layer photopolymerization of ceramic and metal composite slurries.

FAQ

What safety certifications apply to the jetCURE UV/IR/LED system?

CE marking per Machinery and EMC Directives; RoHS 2011/65/EU compliance; IEC 62471 Risk Group 1 classification for UV LED modules.
Can the system be retrofitted onto existing press lines?

Yes—modular mounting brackets, standardized electrical interfaces (24 V DC control, 230 V AC power), and compact footprint (max. 120 mm height) enable integration into legacy flexo, gravure, and digital presses.
Is spectral calibration traceable to NIST standards?

UV LED spectral output is factory-calibrated using a calibrated spectroradiometer traceable to PTB (Physikalisch-Technische Bundesanstalt); calibration certificates are provided with each unit.
How is thermal load managed on heat-sensitive substrates like thin PET?

Dual-wavelength UV LED operation minimizes IR emission; optional reflective backplates (Al/SiO₂ coated) reduce substrate heating by >40% versus conventional mercury lamps.
Does the system support Industry 4.0 data exchange protocols?

Yes—native Modbus TCP and Ethernet/IP support; optional OPC UA server license available for MES/ERP integration and predictive maintenance analytics.