Letterpress printing machine
AssigneeToppan Printing Co., Ltd.
InventorsYukio Konaka, Tomoaki Fukuhara, Hiroshi Matsuzawa
Life of this patent
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Abstract
A letterpress printing machine is disclosed including a rotary printing cylinder in which a relief printing plate is installed, a substrate surface plate on which a substrate is placed, an ink supply device supplying ink on the relief printing plate, a relief printing plate washing equipment washing the surface of the relief printing plate, and a wiper for a plate. The relief printing plate washing equipment can include a washing liquid supplying unit, an air blasting unit jetting pressurized gas to the relief printing plate, a suction unit sucking the washing liquid scattered by air blasting unit, and a washing liquid recovery unit.
Claims7
A letterpress printing machine, comprising:
- a rotary printing cylinder in which a relief printing plate is installed;
- a substrate surface plate on which a substrate is placed;
- an ink supply device supplying ink to the relief printing plate;
- a relief printing plate washing equipment washing a surface of the relief printing plate;
- and
- a wiping device which wipes off a washing liquid on the relief printing plate after washing,
- wherein the relief printing plate washing equipment includes a washing liquid supplying unit supplying the washing liquid to the surface of the relief printing plate, an air blasting unit jetting a pressurized gas to the relief printing plate to which the washing liquid is supplied, a suction unit sucking the washing liquid scattered by the air blasting unit, and a washing liquid recovery unit receiving the washing liquid supplied to the surface of the relief printing plate by a pan below a bottom of the rotary printing cylinder.
Dependencies are inferred from the claim text.