G - Physics – 03 – F
Patent
G - Physics
03
F
G03F 7/32 (2006.01)
Patent
CA 2249647
A developer composition for photosensitive elements including lithographic printing plates, color proofing films, positive and negative working lithographic plates and thermally sensitive plates giving high image contrast and reduced oxide attack to image surfaces said composition comprises: a source of hydroxyl ions sufficient to provide said developer composition to have a pH of from about 10 to about 14; an optional buffer; an etch inhibiting additive, and sufficient water to produce a developer composition. A method for forming an image also is disclosed.
Composition de développateur pour éléments photosensibles comprenant des planches d'impression lithographiques, des films de tirage d'épreuves couleur, des plaques lithographiques de résine positive et de résine négative et des plaques thermosensibles produisant des images à contraste élevé et dont l'attaque par oxyde est réduite. La composition est constituée : d'une source d'ions hydroxydes en quantité suffisante pour que le pH de la composition se situe environ entre 10 et 14; d'un tampon facultatif; d'un additif inhibiteur de mordant; et de suffisamment d'eau pour produire une composition de développateur. L'invention dévoile également une méthode de formation d'image.
Corporation Bayer
Smart & Biggar
LandOfFree
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