LITHOGRAPHIC PRINTING PLATE PRECURSOR AND METHOD OF USE

LITHOGRAPHIC PRINTING PLATE PRECURSOR AND METHOD OF USE

wherein X is -O-, -S-, -NH-, or -CH2-, Y is >N- or >CH-, R1 is hydrogen or an alkyl, R2 and R3 are independently halo, thioalkyl, thiophenyl, alkoxy, phenoxy, alkyl, phenyl, thioacetyl, or acetyl, and m and n are independently 0 or an integer of 1 to 4. The printout image exhibits a color cont...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: VIEHMANN, Philipp, WERNER, Saija, SIMPSON, Christopher, D
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
LINING MACHINES
PERFORMING OPERATIONS
PRINTING
PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTINGSURFACES
STAMPS
TRANSPORTING
TYPEWRITERS
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Beschreibung
Zusammenfassung:wherein X is -O-, -S-, -NH-, or -CH2-, Y is >N- or >CH-, R1 is hydrogen or an alkyl, R2 and R3 are independently halo, thioalkyl, thiophenyl, alkoxy, phenoxy, alkyl, phenyl, thioacetyl, or acetyl, and m and n are independently 0 or an integer of 1 to 4. The printout image exhibits a color contrast between the exposed and non-exposed regions of a ΔE greater than 8. A ΔE of at least 5 is maintained between the exposed and the non-exposed regions with exposure to white light for at least one hour. These precursors, when IR-exposed, can be developed on-press.