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AssigneeFuji Photo Film Co., Ltd.
InventorsMashafumi Kii, Susumu Yoshida, Yoshihiko Uraba, Hiroshi Takahashi
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Disclosed is a process for developing a presensitized plate which is used in making a lithographic printing plate requiring no dampening water and which comprises, on a substrate, a photopolymerizable adhesive layer and a silicone rubber layer in the order, said process comprising water as a main component and at least one ethylene glycol derivative represented by the following general formula (I): C.sub.m H.sub.2m+1 --(OCH.sub.2 CH.sub.2).sub.n --OH (I) (wherein m is an integer of 5 to 8 and n is 1 or 2). According to the present invention, the developer is excellent in safety, in developing ability and in half-tone dots reproduction.
A process of preparing a lithographic printing plate requiring no dampening water which comprises imagewise exposing to light, a presensitized plate comprising a substrate having thereon, in order, a photopolymerizable adhesive layer and a silicone rubber layer and developing the imagewise exposed presensitized plate with a developer to remove only the silicone rubber layer in the light unexposed areas at the imagewise exposure thereby revealing the photopolymerizable adhesive layer in said areas, wherein said developer comprises:
Dependencies are inferred from the claim text.