Sleeve for flexographic printing

A sleeve for flexographic printing, comprising a sleeve body (2) made of an at least partially non-electroconductive material, which within its inside (4) is mountable on an electroconductive king roll (1) of a printing press designed as an air cylinder, and exhibiting at least one contact zone with the king roll (1), said sleeve further comprising an electroconductive surface (6), which is connected to the contact zone via at least one electroconductive element (20) provided in the sleeve body (2) for diverting electrostatic chargings into the outer wall of the roll (7) of the king roll (1), wherein the electroconductive surface comprises a conductive synthetic layer, in particular a conductive polyurethane layer.

A sleeve for flexographic printing, comprising a sleeve body (2) made of an at least partially non-electroconductive material, which within its inside (4) is mountable on an electroconductive king roll (1) of a printing press designed as an air cylinder, and exhibiting at least one contact zone with the king roll (1), said sleeve further comprising an electroconductive surface (6), which is connected to the contact zone via at least one electroconductive element (20) provided in the sleeve body (2) for diverting electrostatic chargings into the outer wall of the roll (7) of the king roll (1) wherein:

• the sleeve body comprises at least one layer of non-conductive material, which is radially penetrated by the at least one electroconductive element (20);
• and,
• the at least one electroconductive element (20) comprises a housing that accommodates a spring and a contact body.

A sleeve for flexographic printing, said sleeve comprising:

• a body comprising an at least partially non-electroconductive material and defining a space adapted to receive an associated king roll, said body further comprising an electroconductive surface and an electroconductive element for electrically interconnecting the electroconductive surface to an associated king roll located in said space, wherein the electroconductive element for electrically interconnecting the electroconductive surface to an associated king roll located in said space comprises a radially movable spring-biased contact body.