Heat Seal Lacquering (HSL) is a Reel-to-Reel converting process used in coating and laminating machinery where heat-activated coatings are applied to flexible substrates to enable controlled sealing performance under defined temperature, pressure and dwell time conditions.
The coating is applied using precision metering systems and dried to form a functional layer that activates during sealing. HSL technology is widely used in converting and flexible packaging applications requiring reliable seal integrity, peelability and high-speed machinability, delivering low activation temperature, controlled seal strength and consistent production performance on industrial coating and laminating lines.
At ILAMCO, we integrate multiple industrial coating technologies within our converting, coating and laminating machinery, selected according to formulation characteristics and required product performance, including rod (Mayer rod), blade, air knife, gravure and reverse gravure coating systems, as well as multi-layer coating configurations.
Technology selection in coating and laminating lines is defined by key process parameters such as target coat weight and sealing performance, coating rheology and solids content, required seal characteristics (peelable, hermetic or cold seal compatibility), and the interaction between coating method and drying capacity to ensure optimal production performance.
A dispersion Coating Line can be designed to include the following sections:
ILAMCO integrated in-line converting processes are designed as modular and fully configurable systems, adapted to specific product requirements and performance targets. The production lines can be configured with multiple coating technologies, double-sided coating capability and modular upgrades that enhance process flexibility, efficiency and scalability in advanced converting applications.
Substrates:
Coatings:
Key performance capabilities include precise control of coat weight and sealing properties, uniform layer formation for consistent performance, optimization for high-speed packaging processes and flexibility to process different substrates and coating formulations. These systems are designed for upgradability, combining seal chemistry expertise and process integration with a strong focus on sustainable and recyclable packaging solutions.
Our Projects are engineered for industrial-grade durability and continuous 24/7 operation. Every component and system integration is designed to ensure long-term performance with minimal downtime.
We follow a Client-centric project management approach that guarantees full alignment with Client’s technical and operational requirements, maintaining transparency and communication at every stage.
Timely delivery is a non-negotiable commitment. Our internal planning and production workflow are structured to meet agreed deadlines without compromising the quality of what we deliver.
Our extensive industry know-how, combined with advanced engineering expertise and high manufacturing standards, allows us to deliver reliable, high-performance technology solutions designed for long-term industrial operation and consistent production efficiency.
Every line is built around each Client’s specific application requirements, with a modular architecture designed to support future upgrades and technology integrations as production needs evolve over time.
We provide commissioning, operator training, and worldwide after-sales service, ensuring each Client’s production line remains optimized, reliable, and fully supported throughout its entire operational lifecycle.
Explore every detail of our machines:
