Global Patent Index - EP 0629514 A1

EP 0629514 A1 19941221 - Low affinity coating blanket for rotary offset presses.

Title (en)

Low affinity coating blanket for rotary offset presses.

Title (de)

Beschichtungstuch mit schwacher Affinität zur Verwendung in Offset-Rotationsdruckmaschinen.

Title (fr)

Blanchet de couchage d'affinité faible à employer dans des maschines d'impression rotatives en offset.

Publication

EP 0629514 A1 19941221 (EN)

Application

EP 93308812 A 19931104

Priority

US 7857193 A 19930616

Abstract (en)

The transfer layer (28) of a coating blanket (10) has a low affinity for liquid coating material or ink, rather than a high affinity which characterizes conventional nitrile rubber and photopolymer blankets. The low affinity material, for example a fluorinated polymer or a silicone elastomer, resists wetting by the liquid media, and has a tendency to form a non-spreading bead or droplet of the liquid coating material on the transfer media surface. The low affinity surface provides smooth and quick release of the substrate from the nip between the coating blanket cylinder (12) and the impression cylinder (20). The low affinity transfer surface further inhibits the accumulation of ink and/or liquid coating material, thereby preventing split images, ghost images, offset images and back-trapping defects. <IMAGE>

IPC 1-7

B41N 10/04

IPC 8 full level

B41N 10/02 (2006.01); B41N 10/04 (2006.01)

CPC (source: EP KR)

B41N 10/04 (2013.01 - EP KR); B41N 2210/02 (2013.01 - EP KR); B41N 2210/14 (2013.01 - EP KR)

Citation (search report)

Designated contracting state (EPC)

AT CH DE DK FR GB IT LI SE

DOCDB simple family (publication)

EP 0629514 A1 19941221; CA 2102347 A1 19941217; JP H079778 A 19950113; KR 950000389 A 19950103

DOCDB simple family (application)

EP 93308812 A 19931104; CA 2102347 A 19931103; JP 32142693 A 19931125; KR 930024890 A 19931122