Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – With means applying electromagnetic wave energy or...
Reissue Patent
1998-08-12
2001-05-29
Jenkins, Daniel J. (Department: 1742)
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
With means applying electromagnetic wave energy or...
C422S186300, C422S024000, C209S576000, C209S546000, C209S552000, C209S581000, C209S582000, C355S117000, C355S117000, C271S298000, C271S301000
Reissue Patent
active
RE037197
ABSTRACT:
BACKGROUND OF THE INVENTION
The present invention concerns a device for regenerating a printed sheet-like recording medium for erasing images on a printed sheet-like recording medium and enabling the thus treated medium to be reused as it is by a printing device.
Recently, amount of recording paper used in individual firm or organization has been greatly increased along with the startling progress in copying machines and word processors which has, correspondingly, increased the amount of printed paper to be discarded, and regeneration and reuse thereof has become a significant problem in view of environmental protection.
For regenerating such paper, although it has been adapted to beat the printed paper into pulpous form, which is then formed by a paper-making process into paper for reuse in a very small amount, it requires to previously discriminate as to whether or not the printed paper can be deinked after pulping. However, while the discrimination generally needs an expert's judgment, it is difficult to leave the judgment of the deinking property to outside experts in view of keeping the contents of the recording paper to be discarded in secret. From a view point of keeping secret, discarded documents are finely shredded by cutters such as shredders before disposal in most of firms or organizations. However, it is actually impossible to separate such shredded recording papers to be discarded into those which can and can not be deinked and, in addition, to remove clips or plastic materials included therein, and they are after all put to incinerating treatment at present. This invites reckless deforestation and also leads to air pollution.
Further, even when it is attempted to prepare regenerated paper by deinking the thus shredded recording papers and putting them to a paper-making step, since the resultant regenerated paper has a dark tone and the cost for the regeneration is more expensive than that for the production of new papers, it is not favored both by consumers and manufactures and only little amount of the printed paper is utilized for the regeneration at present.
The present inventors have made an earnest study for completing a regeneration device for a printed sheet-like recording medium capable of dissolving the foregoing problems, aiming at regeneration device capable of treating the medium at least in each of firms or organizations, if possible, in a restricted quarter, i.e., a regeneration device that can be used with ease and convenient like that existing copying machines with a view point of keeping secret and, as a result, have accomplished the regeneration device of the present invention in an approach of erasing images on the printed sheet-like recording medium and restoring it into the original state.
SUMMARY OF THE INVENTION
An object of the present invention is to provide a device for regenerating printed sheet-like recording medium.
Another object of the present invention is to provide a device for regenerating a printed sheet-like recording medium that can be used with ease requiring no skilled knowledge of experts.
A further object of the present invention is to provide a device for regenerating a printed sheet-like recording medium capable of treating the printed recording medium, which is otherwise a waste, without leaking its secret contents to the outside, in a restricted inside or quarter and capable of using it as a new recording medium.
A further object of the present invention is to provide a device for regenerating a printed sheet-like recording medium comprising means for supplying a sheet-like recording medium, means for applying regenerating treatment, means for separation and means for storage.
A further object of the present invention is to provide a device for regenerating a printed recording medium comprising means for applying regenerating treatment by treating the printed surface of the sheet-like recording medium printed with a degradable toner by means of a degrading agent containing an enzyme or an enzymatically effecting material, or under the irradiation of a short wavelength light thereby erasing images thereon.
A still further object of the present invention is to provide a device for regenerating a printed recording medium comprising a regeneration treating means for treating the printed surface printed with a toner or ink comprising an electron donating or electron accepting color-forming organic compound and a color developer as a coloring material with a color-eliminating agent, thereby erasing images thereon.
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Asahina Yasuo
Chiba Shunichi
Iida Toru
Kuramoto Shin-ichi
Ohashi Michihito
Jenkins Daniel J.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Ricoh & Company, Ltd.
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