Compressible printing sleeve carrier and method of making
View Patent ↗A compressible printing sleeve carrier for use in offset lithography which is formed from a composite fiber-reinforced compressible polymer is provided. The printing sleeve carrier is formed by coating reinforcing filaments with a compressible polymer and winding the filaments around a mandrel to form a hollow cylindrical base, where the first portion of the base adjacent the inner surface contains the wound reinforcing filaments coated with the compressible polymer and the second portion of the base adjacent the outer surface contains the compressible polymer.
1. A compressible printing sleeve carrier comprising:
a hollow cylindrical base having inner and outer surfaces, a first portion of said hollow cylindrical base adjacent said inner surface thereof comprising a first non-compressible layer of continuous reinforcing filaments coated with a substantially void-free polymer and wound around said hollow cylindrical base and a second compressible layer on said first layer comprising continuous reinforcing filaments coated with a volume compressible polymer and wound around said hollow cylindrical base.
2. The compressible printing sleeve carrier of claim 1 comprising a plurality of alternating layers of said non-compressible and compressible layers.
3. The compressible printing sleeve carrier of claim 1 wherein said volume compressible polymer includes a void producing material therein selected from microspheres, blowing agents, or a combination thereof.
4. The compressible printing sleeve carrier of claim 1 wherein said continuous reinforcing filaments are selected from fiberglass, carbon fibers, metallic fibers, and aramid fibers.
5. The compressible printing sleeve carrier of claim 1 wherein said continuous reinforcing filaments comprise cords.
6. The compressible printing sleeve carrier of claim 1 wherein said volume compressible polymer is selected from urethane, vinyl ester, polyester, epoxy, and nylon.
7. The compressible printing sleeve carrier of claim 1 wherein said substantially void-free polymer is selected from the group consisting of polyurethane, polyvinyl esters, polyesters, epoxies, and polyamides.