Cleaning and liquid contact with solids – Processes – Longitudinally traveling work of bar – strip – strand – sheet...
Patent
1995-10-16
1998-06-23
Warden, Robert J.
Cleaning and liquid contact with solids
Processes
Longitudinally traveling work of bar, strip, strand, sheet...
134 26, 134 32, 134 61, 134 941, B08B 304, B08B 300
Patent
active
057699577
DESCRIPTION:
BRIEF SUMMARY
DETAILED DESCRIPTION OF THE INVENTION
1. Technical Field
The present invention relates to a regenerating apparatus of a recorded material in which an image having a film shape is formed and recorded in the vicinity of a surface of the recorded material in an image recording method such as an electrophotographic method, a thermal transfer method, an ink jet method using hot melt-ink, a printing method, etc., and an image forming substance is removed from the unnecessary recorded material so that the recorded material is regenerated in a reusable state.
The regenerating method and apparatus of the recorded material in the present invention can be applied to various kinds of fields in which foreign matters are removed from the surface of a member such as an electronic blackboard, etc. capable of automatically erasing an image.
2. Prior Art
A large amount of printer paper and copying paper has been used by recent office automation (OA). Therefore, a large amount of paper is uselessly dumped from offices in main cases at the present time. It takes much cost to dispose this paper. Simultaneously, a regional environment becomes worse by dumping processing of this paper. Further, a global environment has recently become worse by deforestation for producing paper.
In a general treatment for solving this problem and recycling paper, ink is removed from a sheet of paper once used and this paper is decomposed into cellulose fibers and is again filtered and is reused as regenerated paper. This treatment requires a large-scale plant for regenerating the used paper. Further, it is necessary to arrange sorting, collecting and conveying processes, etc. with respect to the used paper until the regenerated paper is obtained. Furthermore, in this method, paper fibers are damaged in a regenerating operation so that paper can be regenerated about two times at most when the same paper fibers are used.
Recently, new paper has been developed. A character image is removed from this paper once used by cleaning and this paper can be used to make a copy or print. For example, in Japanese Patent Application Laying Open (KOKAI) No. 4-67043, mold-releasing processing is performed with respect to a surface of a sheetlike supporting member, especially, only one face of the supporting member. A mark is provided to this mold-released supporting member to discriminate this supporting member from (ordinary) plain paper. However, this supporting member is special paper so that it is difficult to fix an image onto this special paper. Accordingly, there is a problem when this supporting member is used as a sheet of general copying paper. Each of Japanese Patent Application Laying Open (KOKAI) Nos. 1-101576 and 1-101577 shows a method for removing an image from an image forming supporting member. In this method, an image forming substance (toner) is removed from the image forming supporting member by supersonic processing within an organic solvent for dissolving this image forming substance. However, this method has problems about pollution, ignition and toxicity by the organic solvent. Accordingly, there are problems about use in general offices and homes. Japanese Patent Application Laying Open (KOKAI) No. 1-297294 shows a cleaning method for separating an image from an image forming supporting member. In this cleaning method, the image forming supporting member is formed by plastic, a metal, paper or ceramic having low liquid permeability, etc. The image formed on the supporting member is heated through a thermally melted separating member and is separated from the supporting member. However, a sheet of special paper having a mold-released surface must be used in this cleaning method.
In Japanese Patent Application No. 5-202557, the inventors of this patent application proposed an ink separating method. In this method, a recorded material is constructed by a chartaceous layer. At least one portion of this chartaceous layer is constructed by cellulose fibers as a main component. This recorded material is impregnated with a liquid including wate
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Fujita Shigeru
Murakami Kakuzi
Nagai Kiyofumi
Saito Tadashi
Tanikawa Kiyoshi
Markoff Alexander
Ricoh & Company, Ltd.
Warden Robert J.
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