Product Introduction

The Dual-Method Coating Machine for Electronic Packaging Films is designed for precision coating of electronic packaging films and other functional film materials. Equipped with two independently operable coating heads-a doctor blade coating head and a micro-gravure coating head-the machine provides flexibility for different coating formulations, substrate materials, and process requirements.

The machine adopts a modular roll-to-roll design integrating coating, UV curing, infrared drying, web handling, and winding functions. The two coating heads can be operated independently, allowing users to select the appropriate coating method according to slurry properties, target coating weight, and product requirements.

An integrated corona treatment unit helps improve surface wettability and supports coating adhesion on compatible film substrates. The UV curing unit is positioned upstream of the infrared drying ovens. The UV lamp can be switched on or off according to the coating formulation and process requirements, making the machine suitable for both UV-curable coatings and other compatible coating systems that do not require UV curing.

A temperature- and humidity-controlled enclosure helps maintain a suitable processing environment for formulations sensitive to environmental conditions. The overall configuration can be customized according to substrate properties, coating formulation, drying and curing requirements, and production objectives.

Product Specifications

Power Supply	3-Phase AC 380V±10%, 50 Hz, 40 KW
Air Supply	0.5-0.8 MPa compressed air
Coating Modes	Comma coater and Micro-gravure roller
Guide Roll Width	550 mm
Maximum Effective Coating Width	480 mm
Maximum mechanical line speed: 18 m/min	18 m/min
Maximum coating line speed: 15 m/min	Max. 15 m/min
Comma-blade coating thickness tolerance: ±5 μm	0.005 mm
Micro-gravure coating thickness tolerance: ±1 μm	0.005 mm
Heating temperature range: 0–200°C	0-200°C
Weight	Approx. 3500 Kg (subject to actual weight)
Machine Dimensions	L 9000 mm × W 1600 mm × H 2000 mm (subject to actual dimension)

Main Configuration

The standard configuration includes the following main units:

One unwinding system
One doctor blade coating head
One micro-gravure coating head
One UV curing unit
Two infrared drying oven sections, each 2 meters long
One temperature- and humidity-controlled enclosure
One corona treatment unit
One protective film unwinding unit
Two traction units
Two web guiding systems
Two tension control systems
One rewinding system
Two electrical control cabinets

Key Features

Two Independently Operable Coating Heads

The machine integrates a doctor blade coating head and a micro-gravure coating head, with each head capable of operating independently. Users can select the appropriate coating method according to slurry viscosity, coating thickness, target coating weight, and surface requirements.

This dual-method configuration provides flexibility for coating process development, material evaluation, and production involving different functional film materials.

Servo-Driven Coating Control

Servo-driven coating units support controlled positioning and process adjustment, helping users establish suitable coating conditions for different formulations and substrates.

Integrated Corona Treatment

The corona treatment unit modifies the surface properties of compatible polymer films to improve wettability and support coating adhesion. The actual effect depends on the substrate material, surface condition, and coating chemistry.

Optional UV Curing

The UV curing unit is installed upstream of the infrared drying ovens. The UV lamp can be switched on when UV curing is required or kept off when the coating formulation does not require UV exposure.

For UV-curable coatings, the UV system can be configured according to the formulation's wavelength and curing requirements. For other compatible coating systems, the machine can operate without activating the UV lamp.

This configuration provides greater flexibility when processing different coating formulations.

Integrated Infrared Drying

The machine includes two infrared drying oven sections, each 2 meters long. The infrared drying process can be configured according to the coating material, solvent system, substrate characteristics, and required drying conditions.

The suitability of the drying process depends on the formulation's thermal sensitivity and drying requirements.

Temperature and Humidity Control

The temperature- and humidity-controlled enclosure provides a regulated environment around the designated processing section. It helps reduce environmental variations that may affect moisture-sensitive formulations and coating consistency.

The required temperature and humidity ranges can be specified according to the customer's process requirements.

Modular Roll-to-Roll Design

The machine is organized into coating, curing and drying, and winding sections. Its modular structure supports customized equipment layouts, process-specific configurations, and convenient maintenance access.

Applications

Electronic Packaging Films: Functional coatings for films used in electronic component packaging and protection.
Advanced Printing and Functional Printing: Application of functional coatings, primers, and surface layers to film substrates used in high-quality printing and specialty printing processes.
Protective Films: Surface treatment and functional coating of films used to protect electronic components and precision surfaces.
Adhesive-Coated Films: Coating of compatible pressure-sensitive adhesives and other functional adhesive formulations.
Optical and Display Films: Selected functional coatings for optical films and display-related materials.
Electrical Insulation Films: Coating of compatible polymer films used for electrical insulation and component protection.
Surface-Functional Films: Application of primer, protective, and other functional layers to modify surface performance.
UV-Curable Functional Films: Coating and UV curing of formulations compatible with the configured UV system.
Flexible Electronic Materials: Process development for selected flexible substrates requiring controlled coating and web handling