EP 0824078 B1 20011107 - Lithographic layer for a printing blanket and blanket provided with such a layer
Title (en)
Lithographic layer for a printing blanket and blanket provided with such a layer
Title (de)
Lithographische Schicht für ein Drucktuch und entsprechendes Drucktuch
Title (fr)
Couche lithographique pour blanchet d'impression et blanchet équipé de cette couche
Publication
Application
Priority
FR 9610218 A 19960814
Abstract (en)
[origin: EP0824078A1] New lithographic layer (I) for printing blankets comprising a polyurethane (II) based thermoplastic material (III) incorporating a copolymer of ethylene vinyl acetate (IV) to confer a polar quality guaranteeing an optimum transfer of ink from (I) to the paper. Also claimed is a printing blanket or sleeve comprising (I). Preferably (II) is an ethylene-propylene copolymer. (III) incorporates bulk, such as magnesium silicates, aluminium silicates, or metal oxides, and plasticisers (for example an ester or a polymer). For 100 parts of (II), (I) contains 0-20 parts by weight of (IV), 0-30 parts by weight of bulk and 0-10 parts by weight of plasticiser. (I) contains at least one pigment (0-2 parts by weight for 100 parts of (III)). (II) has a polar component in water, formamide and dimethyl sulphoxide of 0-20 mJ/m<2> (5-12 mJ/m<2> in water and 0-10 mJ/m<2> in formamide preferred). (I) is used in printing. Because (I) has a significant polar component, virtually all the ink is transferred from (I) to the paper. This ensures a good quality print and avoids the need to clean or change the printing blanket too frequently.
IPC 1-7
IPC 8 full level
B41N 10/00 (2006.01); B41N 10/02 (2006.01)
CPC (source: EP US)
B41N 6/00 (2013.01 - EP US); B41N 10/02 (2013.01 - EP US); B41N 2210/02 (2013.01 - EP US); B41N 2210/10 (2013.01 - EP US); B41N 2210/14 (2013.01 - EP US); Y10T 428/31591 (2015.04 - EP US); Y10T 428/31888 (2015.04 - EP US); Y10T 428/31895 (2015.04 - EP US); Y10T 428/31899 (2015.04 - EP US); Y10T 428/31902 (2015.04 - EP US); Y10T 428/31906 (2015.04 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL
DOCDB simple family (publication)
EP 0824078 A1 19980218; EP 0824078 B1 20011107; AT E208283 T1 20011115; CA 2212811 A1 19980214; CA 2212811 C 20060321; DE 69708001 D1 20011213; DE 69708001 T2 20020829; FR 2752393 A1 19980220; FR 2752393 B1 19981009; JP 4158951 B2 20081001; JP H10157324 A 19980616; SI 0824078 T1 20020630; US 6071620 A 20000606
DOCDB simple family (application)
EP 97401874 A 19970804; AT 97401874 T 19970804; CA 2212811 A 19970812; DE 69708001 T 19970804; FR 9610218 A 19960814; JP 21937097 A 19970814; SI 9730276 T 19970804; US 91074597 A 19970813