Seamless offset lithographic printing members for use with laser

Details Seamless offset lithographic printing members for use with laser Seamless offset lithographic printing members for use with laser

1995-06-07

1997-06-10

Funk, Stephen R.

Printing

Planographic

Lithographic printing plates

101457, 101467, B41N 108

Patent

active

056365721

ABSTRACT:
Seamless, sleeve-shaped dry and wet lithographic printing members that can be recycled after use include a strong, durable, hollow cylinder or sleeve that is attached to the plate mandrel or cylinder jacket of an offset printing press or platemaking apparatus. In one version, the sleeve is surrounded by a photopolymer, which is itself surrounded by a mask coating opaque to radiation that is actinic with respect to the photopolymer. Subsequently, the imaged construction is exposed to actinic radiation, and the unexposed photopolymer, along with the overlying mask, is removed by ordinary chemical means. In another version, a thermally transferable material surrounds a cylinder, and is itself surrounded by a withdrawal layer. Exposure of the thermally transferable layer to laser radiation adheres the transferable layer to the cylinder, and the adhered layer exhibits an affinity for fountain solution and/or ink opposite to that exhibited by the cylinder. The withdrawal layer is then peeled away, leaving exposed portions adhered to the cylinder.

REFERENCES:
patent: 637562 (1899-11-01), Hett
patent: 3677178 (1972-07-01), Gipe
patent: 3964389 (1976-06-01), Peterson
patent: 4020762 (1977-05-01), Peterson
patent: 4132168 (1979-01-01), Peterson
patent: 4846065 (1989-07-01), Mayrhofer et al.
patent: 4913048 (1990-04-01), Tittgemeyer
patent: 4958564 (1990-09-01), Fuhrmann et al.
patent: 5073791 (1991-12-01), Mouri et al.
patent: 5238778 (1993-08-01), Hirai et al.
patent: 5429909 (1995-07-01), Kaszczuk et al.
Research Disclosure, Apr. 1980, at page 131.
Nechiporenko et al., "Direct Method of Producing Waterless Offset Plates By Controlled Laser Beam".

Affiliated with

Also associated with

Rating

Seamless offset lithographic printing members for use with laser does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Seamless offset lithographic printing members for use with laser, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Seamless offset lithographic printing members for use with laser will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-758108