Printing – Processes – Transfer or offset
Patent
1995-04-27
1996-04-30
Yan, Ren
Printing
Processes
Transfer or offset
101419, B41L 1510, B41F 500
Patent
active
055114806
ABSTRACT:
A transfer cylinder for supporting freshly printed sheet material between printing units or at the delivery unit of a printing press is provided with an ink repellent, flexible jacket covering for supporting and transporting the sheet material without transfer of wet ink from one sheet to a successive sheet and without smearing the ink or causing indentations on the surface of the sheet material. The circumferential support surface of the transfer cylinder is covered with a conductive, fluoropolymer layer secured to the surface of the transfer cylinder beneath the protective, wash-free disposable flexible jacket covering. The low friction properties of the conductive base covering permit free movement of the ink repellent, flexible jacket covering relative to the transfer cylinder surface. Electrostatic charges delivered to the flexible jacket covering by the printed sheet material are drawn away from the flexible jacket covering and are discharged into the transfer cylinder by the conductive base covering.
REFERENCES:
patent: 3597818 (1971-08-01), Beck
patent: 3730794 (1973-05-01), Ross
patent: 4868958 (1989-09-01), Suzuki et al.
patent: 5243909 (1993-09-01), DeMoore et al.
patent: 5245923 (1993-09-01), Vrotacoe
patent: 5320042 (1994-06-01), Schwoffinger
Branson John A.
DeMoore Howard W.
DeMoore Howard W.
Griggs Dennis T.
Yan Ren
LandOfFree
Method and apparatus for handling printed sheet material does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for handling printed sheet material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for handling printed sheet material will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-621997