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AssigneeFuji Photo Film Co., Ltd.
InventorsEiichi Kato, Seishi Kasai
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A lithographic printing plate precursor is disclosed, comprising a water-resistant support having provided thereon an image-receiving layer, wherein the image-receiving layer comprises anatase-type titanium oxide grains and a binder resin comprising a complex composed of an organometallic polymer and an organic polymer containing at least one member selected from the group consisting of an amido bond, a urethane bond, a ureido bond and a hydroxy group, the surface of the image-receiving layer has a contact angle with water of at least 25 degrees and the contact angle with water thereof is reduced to 15 degrees or below when it is irradiated with ultraviolet light, and further, a method for preparing the lithographic printing plate precursor and a method for preparing a lithographic printing plate by using the lithographic printing plate precursor are disclosed.
A lithographic printing plate precursor comprising a water-resistant support having provided thereon an image-receiving layer, wherein the image-receiving layer comprises anatase-type titanium oxide grains and a binder resin comprising a complex composed of an organometallic polymer and an organic polymer containing at least one member selected from the group consisting of an amido bond, a urethane bond, a ureido bond and a hydroxy group, the surface of the image-receiving layer has a contact angle with water of at least 25 degrees and the contact angle with water thereof is reduced to 15 degrees or below when it is irradiated with ultraviolet light.
A method for preparing a lithographic printing plate comprising forming a colored toner image on an image-receiving layer of a lithographic printing plate precursor which comprises a water-resistant support having provided thereon the image-receiving layer comprising anatase-type titanium oxide grains and a binder resin comprising a complex composed of an organometallic polymer and an organic polymer containing at least one member selected from the group consisting of an amido bond, a urethane bond, a ureido bond and a hydroxy group by utilizing an electrophotographic recording system and then irradiating the whole surface of the image-receiving layer with ultraviolet light to change the non-image area to a hydrophilic surface which does not receive printing ink.
A method for preparing a lithographic printing plate comprising forming a colored image on an image-receiving layer of a lithographic printing plate precursor which comprises a water-resistant support having provided thereon the image-receiving layer comprising anatase-type titanium oxide grains and a binder resin comprising a complex composed of an organometallic polymer and an organic polymer containing at least one member selected from the group consisting of an amido bond, a urethane bond, a ureido bond and a hydroxy group by utilizing an ink jet recording system and then irradiating the whole surface of the image-receiving layer with ultraviolet light to change the non-image area to a hydrophilic surface which does not receive printing ink.
Dependencies are inferred from the claim text.