Thanks to the acquisition of SAM Europe in September 2024, Comas S.p.A., part of the Coesia Group – a multinational network of 20 companies, over 8.000 employees and a turnover of € 2,4 billion – stands as a global leader in advanced coating, laminating, and printing technologies for roll-to-roll industries. Combining Italian engineering excellence with Coesia’s multinational expertise, Comas delivers next-generation equipment designed for superior precision, sustainable processes, and efficient digital intelligence. The mission is to empower customers by producing eco-conscious, recyclable, and high-performance materials, shaping the future of the converting industry. Reflecting this commitment, Coesia achieved the EcoVadis Gold Medal last month, ranking in the top 5% globally for sustainability performance.
Advanced technology for every industry
Comas provides advanced, tailored solutions for the most demanding roll-to-roll industries. High-precision wet and extrusion coating technologies, integrated with state-of-the-art printing systems, enable manufacturers to achieve superior performance, tighter tolerances, and reduced environmental impact. Modular machine architecture and deep process expertise ensure fully customisable configurations – including unwinders, coating stations, drying systems, rewinders, and quality control units. Finally, smart automation and digital data collection enhance efficiency and flexibility, across every manufacturing stage.
Smart & proven solutions for flexible packaging
Comas lines combine specialised coating stations and energy-efficient dryers for aluminium foil and all polymer substrates, with optional extrusion coating and rotary gravure printing sections. Extrusion heads and precision melt control process bio-based and mono-material structures (PLA, PHA, PE/PE) in line with the recyclability and sustainability standards. Advanced melt metering and closed-loop coat-weight regulation ensure barrier and seal-layer uniformity as well as minimise waste, while optimised dryers reduce curing times and carbon footprint.
Reliable release liners for consistent materials
Release-liner production is enhanced by 5- or 6-roller solventless silicone stations for single, simultaneous or double-sided coating. Comas lines process solventless, water-based, and solvent-based silicone formulations, meeting the growing demand for sustainable release systems. Integrated sensors ensure precise coat weight and optimal curing.
Durable labels for demanding applications
Comas offers high-precision coating lines for pressure-sensitive labels, handling wet and Hot Melt/UV adhesives. Slot-die, curtain, or gravure stations with pressurised chambers ensure fast, accurate application. Automation and BUS-based control maintain consistent thickness at high speeds, while energy-recovery dryers significantly reduce VOC emissions and boost sustainability.
Tailored solutions for single and double-sided tapes
Comas designs coating lines for adhesive tapes capable of processing solvent-based, hot-melt, and waterborne adhesives on a variety of substrates, including paper, PET, and polyolefins. Equipped with slot die or comma bar coating stations and multi-zone drying modules, these lines ensure uniform, bubble-free coating even at high web speeds. Tailormade configurations enable the production of single- or double-sided adhesive tapes, in one seamless step, maximising efficiency and flexibility.
Compliance in pharma packaging
When it comes to pharmaceutical films and transdermal patches, precision isn’t optional, it’s essential. That’s why Comas develops coating systems designed to meet the highest standards of accuracy, repeatability, and regulatory compliance. The cleanroom-ready lines use temperature-controlled slot-die and roller technologies for consistent thickness and full batch traceability. Built to meet GMP standards, Comas helps manufacturers deliver safe, high-quality products every time.
Barrier coatings that protect, perform, and preserve
In today’s dynamic packaging market, performance begins at the surface. Comas develops high-efficiency coating and laminating lines for EVOH, PVOH, and bio-polymers, enabling ultra-thin barrier layers that protect against oxygen, moisture, and aroma – while remaining recyclable. Hybrid setups with precision wet coating and optional extrusion ensure top material performance, supported by integrated control and data-driven automation for consistent quality, efficiency, and sustainability.
Accurate coating for displays & optical films
In high-end optical and display film applications, sub-micron coating precision is key to flawless visuals. Comas offers advanced solutions with servo-driven tension control, closed-loop thickness feedback, and high-precision coating stations for diverse formulations. Cleanroom-ready modules ensure a contaminant-free process, delivering consistent quality, clarity, and reliable performance.
Powering performance: advanced coating technologies for membranes & fuel cells
In filtration, separation, and energy applications, precision defines performance. Comas delivers coating systems engineered for uniform porosity and functional-layer control, ensuring reliability where it matters most. Their lines feature slot-die and knife-over-roll coaters for polymeric and inorganic membranes, integrated with high-efficiency dryers and solvent-recovery units for sustainable operations. Advanced inline optical sensors monitor film homogeneity in real time, improving yield and reducing waste to achieve consistent quality and maximise productivity.
Striving for continuous innovation in electrode manufacturing
In the intricate landscape of energy storage systems production, Comas, together with other Coesia companies, is the first European machinery supplier to cover the entire battery-cell manufacturing chain: from slurry mixing to coating, drying, calendering, final cell assembly and filling. Comas electrode coating lines feature slot-die, comma-bar and roller systems designed for wet- and dry-electrode manufacturing. High-precision web-handling ensures tight thickness tolerances and uniform coatings, essential for consistent cell long-term durability.
Beyond coating, drying is a critical processing phase requiring stable, controlled temperatures for flawless foil or winding. Thanks to precise temperature control, the Comas coating dryer meets this challenge by maximising energy efficiency and reducing footprint.
Accelerating the future of organic photovoltaics (OPV)
In the fast-emerging OPV sector, Comas applies its expertise in precision coating to produce solution-processed thin films using roll-to-roll slot-die and gravure systems in inert environments, ensuring consistent deposition of conductive and photoactive layers.
Automation, quality control, modularity, and sustainability define Comas’ technological DNA: fully digital, remotely accessible, and energy-efficient lines help converters meet ambitious environmental goals.
Future horizons: Global challenges and industry trends
The coating and laminating machinery market is undergoing a deep transformation due to economic instability, rising energy costs, strong Asian competition, and supply chain challenges. Customers seek flexibility and faster ROI with limited investment. Comas turns these pressures into innovation: by maintaining production in Italy, it ensures fast service, cost-effective sourcing, and product excellence. Its modular platforms and smart, data-driven tools – including digital twins and predictive maintenance – boost uptime and shorten delivery times.
Beyond new solutions, Comas also upgrades existing equipment through retrofits, components, and software updates to improve reliability and output. Through the group’s global network, the company provides comprehensive training and after-sales support worldwide, reflecting its commitment to staying close to customers everywhere. Backed by Coesia’s research – Italy’s top patent applicant in both 2023 and 2024 – Comas aims to lead the converting industry toward a smarter, more efficient future.