Receptacles – Receptacle having flexible – removable inner liner – Means for venting air trapped between the liner and its...
Patent
1988-11-29
1991-05-28
Evans, Arthur G.
Receptacles
Receptacle having flexible, removable inner liner
Means for venting air trapped between the liner and its...
3461531, G06K 1500
Patent
active
050186400
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
This invention relates to a multiple color printing method for metallic containers and thin plate metals and to printed matters, and more particularly to a multiple color printing method for metallic containers and thin plate metals by utilizing an electophotographic printing technology capable of effectively printing small amounts of multiple kinds of products and of carrying out press-less printing and also relates to metallic containers and thin metal plates printed by the method described above.
BACKGROUND ART
Conventionally, a lithographic offset printing method, a letterpress printing method, a letterpress offset printing method, or a screen printing method is carried out as a multiple color printing method for thin metals such as metallic plates or metal foils, or metallic containers. The lithographic offset printing method is a method of the type in which an ink is applied to a picture-line portion of a lithograph provided with a picture-line portion of lipophilic property and a non-picture-line portion of hydrophilic property, the ink on the lithograph is transferred to a rubber blanket, and the ink on the rubber blanket is then printed on a material to be printed. The letterpress printing method is of the type in which an ink is applied to a picture-line portion in form of relief on a press and the ink is then printed on a material to be printed. The letterpress offset printing method is called in a sence a dry-offset printing method of the type in which an ink is applied to a picture-line portion of a letter press provided with a protruded picture-line portion and a recessed picture-line portion, the ink on the letterpress is transferred to a rubber blanket, and the ink on the rubber blanket is printed on a material to be printed. The screen printing method is of the type in which an ink is printed on a material to be printed by using a screen press provided with a picture-line portion only through which the ink is permeated. These conventional printing methods are superior in the mass production of the printed materials, but require the plates and the plate-making process beforehand the printing requires much time and labour. Recently, an electronic technique has been developed in the field of the printing technique, for example, computerization utilizing a layout scanner in an original manufacturing stage and development of a direct plate-making system in a plate-making process. However, no technique for eliminating the plate-making process has been yet developed, and accordingly, the defects described above have not been yet solved.
In addition, in accordance with the variety of the value judgements, there is an increasing requirement of the printing of the small amount of the multiple kinds of products and it becomes difficult to satisfy this requirement by the conventional methods which lack in an instantaneous printing function.
In the meantime, as a printing technique utilizing no printing press, are known an electrophotographic printing method, an ink-jetting methoc, or a thermo-transferring method, which are so called no-inpact printing technique in a case where paper is used as a material to be printed. According to these methods, a picture image can be directly obtained by a picture image output of a computer without using a printing press. Particularly, the electrophotographic printing method is utilized for a copying machine, facsimile, or printer and is watched as a method to be substituted for the conventional printing methods. As an application of the electrophotographic printing method to the printing technique, there is disclosed an apparatus for manufacturing a multiple color label in the Japanese Patent Laid-open Publication No. 23355/19874. The described invention is characterized by the multiple color label manufacturing apparatus wherein a photoconductive material is charged by charging devices in a plurality of electrophotographic printing devices, charged latent images are formed on the surface of the photosensitive material by projecting light corres
REFERENCES:
patent: 4422749 (1983-12-01), Hoshino et al.
patent: 4692810 (1987-09-01), Machii et al.
Morofuji Akihiko
Morotomi Masaki
Evans Arthur G.
Toyo Seikan Kaisha Ltd.
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