Sleeve for printing plate, method for manufacturing the sleeve, use of the sleeve and assembly comprising the sleeve

The sleeve with a compressible electrical connection between layers addresses electrostatic charging in flexographic printing machines, enabling easy assembly and discharge prevention.

WO2026125774A1PCT designated stage Publication Date: 2026-06-18XSYS GERMANY GMBH
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
XSYS GERMANY GMBH
Filing Date
2025-12-15
Publication Date
2026-06-18

AI Technical Summary

⚠Technical Problem

Flexographic printing machines face issues with electrostatic charging due to the use of plastic or composite materials, which require special measures to make them electrically conductive and provide an electrical connection between the inner and outer layers, complicating the assembly process.

⚗Method used

A sleeve with an electrically conductive compressible inner layer, conductive outer layer, and an intermediate structure featuring a compressible electrical connection means that is partially compressible during mounting, allowing for easy assembly using a gas cushion.

🎯Benefits of technology

The solution effectively addresses electrostatic charging by facilitating easy mounting and demounting while ensuring electrostatic discharge, preventing dangerous discharges and improving safety in flexographic printing machines.

✦ Generated by Eureka AI based on patent content.

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    Figure EP2025087033_18062026_PF_FP_ABST
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Abstract

A sleeve (200) for use with a printing plate, such as a printing sleeve or an adaptor sleeve, with an outer surface (210) and with an inner surface (260), said sleeve being configured to be mounted on an adapter or on a printing mandrel by aid of a gas cushion provided between the inner surface of the sleeve and the adapter or printing mandrel, respectively, wherein the sleeve (200) comprises an electrically conductive compressible cylindrical inner layer (230); an electrically conductive cylindrical outer layer (220); an intermediate structure (250) between said inner layer and said outer layer; an electrical connection means (300) extending through said intermediate structure (250) to electrically connect said inner layer (230) and said outer layer (220); wherein the electrical connection means (300) is configured so that it is at least partially compressible together with the inner layer (230) during mounting by aid of a gas cushion.
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