The ESA Electrostatic Printing Assist systems are designed for precision gravure printing, ensuring superior print quality across various substrates. Trusted by leading global printers and machine manufacturers, ESA systems optimize ink transfer and prevent common printing defects such as missing dots or dot skips. Suitable for multiple ink types and certified for the latest safety standards, ESA offers reliability, ease of use, and low-maintenance performance.

Key Features:

• Enhances print quality by optimizing ink transfer

• Eliminates missing dots, dot skips, and uneven prints

• Compatible with water-based and non-metallic solvent-based inks

• Works on paper, board, and plastic film substrates

• ATEX-certified for the latest safety standards

• Reliable, low-maintenance, and user-friendly design

• Widely used in flexible packaging, tobacco packaging, décor, and publication printing

What does ENULEC® ESA do?

Electrostatic Printing Assist (ESA) is designed to optimise the transfer of ink from the gravure cylinder to the printing substrate by creating an electric field in the area of the nip to assist the capillary action of the gravure process. The result is the elimination or reduction of „dot skip“ or „missing dots“ and the ability to produce quality of a consistently high standard over long running periods without the need to make changes to machine settings (viscosity, impression roller, cleaning the gravure cylinder cells, etc.) Advantages of using ENULEC ESA in the rotogravure printing process – WHAT DOES THE ESA1000compact offer?

In the gravure printing process, as with our processes, there is an ongoing need to improve and refine the quality of print achieved.

ENULEC Electrostatic Printing Assist systems are used by many of the world’s leading gravure printers and machine manufacturers of flexible packaging, tobacco packaging, décor and colour print for publication to improve and maintain the highest standards of print quality by creating the conditions for optimum ink transfer and eliminating “missing dots, dot skips”. They are suitable for use with water based and non metallic solvent based inks when printing on paper, board and plastic film substrates. They are tested and certified to the latest ATEX  safety standards and are characterized by their reliability, their low maintenance design and their user friendliness.

• ENULEC ESA ensures always optimum ink transfer
• Prevents the cell dry blocking issue on all types of plastic film and paper materials
• Eliminates “Missing dots – Dot Skips”
• Improves ink density
• Complete Gravure Cell Evacuation

The ESA principle in gravure printing

What does this look like in practice?

Optimisation of print quality

Elimination of dangerous flashes

The Principles of Electrostatic Printing Assist

ENULEC ESA systems have become standard fixtures throughout the world, particularly when printing on paper, card and plastic film substrates, enabling a high quality of print to be maintained irrespective of factors such as impression roller characteristics, viscosity and machine speed.

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Core Charging

The use of an Electrostatic Assist System (ESA) enables the cells in the cylinder of the gravure printing machine to be fully evacuated of ink and prevents the occurrence of missing dots (dot skips, snow flakes), which are as a result of ink not being transferred to the printing substrate, and is essential as a prerequisite for an optimum quality of print.