Compressible printing sleeve carrier and method of making
View Patent ↗The present invention provides a compressible printing sleeve carrier for use in offset lithography which is formed from a composite fiber-reinforced compressible polymer. 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 comprising a single layer of a volume compressible polymer having inner and outer surfaces, with a first portion of said hollow cylindrical base adjacent said inner surface thereof containing continuous reinforcing filaments wound around said hollow cylindrical base and coated with said volume compressible polymer, and a second portion of said hollow cylindrical base adjacent said outer surface thereof comprising the same volume compressible polymer which is free of said continuous reinforcing filaments.
2. 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.
3. The compressible printing sleeve carrier of claim 1 wherein said continuous reinforcing filaments are selected from fiberglass, carbon fibers, metallic fibers, and aramid fibers.
4. The compressible printing sleeve carrier of claim 1 wherein said continuous reinforcing filaments comprise cords.
5. The compressible printing sleeve carrier of claim 1 wherein said volume compressible polymer is selected from urethane, vinyl ester, polyester, epoxy, and nylon.
6. The compressible printing sleeve carrier of claim 1 wherein said continuous reinforcing filaments include a substantially void-free polymer coating thereon.
7. The compressible printing sleeve carrier of claim 1 having a compliancy of from about 10 to 70 lbs/in.
8. The compressible printing sleeve carrier of claim 1 having a compliancy of from about 35 to 51 lbs/in.