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71. 发明专利

JPH06266044A NEAR INFRARED LIGHT DECOLORABLE TYPE RECORDING MATERIAL 失效
公开(公告)号：JPH06266044A
公开(公告)日：1994-09-22
申请号：JP18261591
申请日：1991-07-23
申请人： SHOWA DENKO KK
发明人： MUROFUSHI KATSUMI , HOSODA KIICHI
IPC分类号： G03C1/73 , C09D11/00 , G03G9/08 , G03G9/09
摘要： PURPOSE:To obtain the recording material sensitive to light in the near infrared region and to enable characters and the like printed on the recording material to be decolored by irradiation with near infrared light and to enable recording on this same decolored part to be repeated and records printed on the recording material to be stably retained under the visible light by preparing the recording material with a specified dye and a specified boron compound. CONSTITUTION:The recording material is prepared with the dye having absorption in the near infrared region represented by formula I and the boron compound represented by formula II, and in formulae I and II, D is a cation having absorption in the near infrared region; A is halogen ion, perchlorate ion, sulfonate ion, or the like anion; each of R1-R4 is, independently, alkyl, a alkyl, aryl, or the like; and each of R5-R8 is, independently, H, an alkyl, aryl, or the like, thus permitting the obtained near infrared light decolorable recording material to be decolored by irradiation with a light of >=700nm wavelengths and stable in the visible light.

72. 发明专利

JPH06236000A LIGHT DECOLORING RECORDING MATERIAL 失效
公开(公告)号：JPH06236000A
公开(公告)日：1994-08-23
申请号：JP2442793
申请日：1993-02-12
申请人： SHOWA DENKO KK
发明人： MUROFUSHI KATSUMI , HOSODA KIICHI
IPC分类号： B41M5/00 , B41M5/124 , C09D11/00 , C09D11/328 , C09D11/36 , C09D11/38 , G03C1/73 , G03C1/76 , G03G9/08
摘要： PURPOSE:To provide a recording material decolored with a typed or printed record portion via the visible light, made readable when typed or printed again on the same portion, and excellent in stability against the light of a fluorescent lamp by combining a specific decolorant and a specific cation dye having an absorbing capability in the visible light area. CONSTITUTION:A cation dye expressed in the formula I or the formula II and a declorant expressed by the formula III are concurrently used. In the formula I, II, D indicates the cation having an absorbing capability in the visible light area, R1, R2, R3, R4 independently indicate the alkyl group and allyl group. A indicates the anion selected from halogen ion, perchloric acid ion, PR 6, BF 4, SbF 6, and sulfonic acid ion. In the formula III, R5, R6, R7, R8 independently indicate the alkyl group and allyl group, and Z indicates quaternary pyridinium cation, quaternary quinolinium cation, or phosphonium cation.

73. 发明专利

JPH06208317A DECOLORIZING DEVICE 失效
公开(公告)号：JPH06208317A
公开(公告)日：1994-07-26
申请号：JP32693792
申请日：1992-12-07
申请人： BANDO CHEMICAL IND , SHOWA DENKO KK
发明人： TANAKA YOSHIHARU , MUROFUSHI KATSUMI , HOSODA KIICHI
IPC分类号： G03G21/00
摘要： PURPOSE:To provide a decoloring device light in weight and compact, which can efficiently decolorize toner capable of being photochemically decolorized while preventing the warpage and the wrinkle of a sheet body and whose decolorizing time per sheet is short. CONSTITUTION:This decolorizing device 1 is constituted of a paper feed cassette 11 housing the fixed sheet body 10 which can be photochemically decolorized, a paper feed roller 12, guiding members 13 and 14, endless belts 15 and 16 for carrying the sheet body 10 while interposing it between both surface sides, a light source 24 for irradiating a toner image on the sheet body with near infrared rays simultaneously with radiating and heating it, a convex mirror 25 condensing light radiated from the light source 24, and a paper ejection tray 3.

74. 发明专利

JPH0675374A PHOTOSETTING MATERIAL AND SETTING METHOD 失效
公开(公告)号：JPH0675374A
公开(公告)日：1994-03-18
申请号：JP15569193
申请日：1993-06-25
申请人： SHOWA DENKO KK
发明人： SUGITA SHUICHI , MUROFUSHI KATSUMI , HOSODA KIICHI , YAMAUCHI AKIRA , NAKAMURA KASUMI
IPC分类号： C08F2/50 , C08F290/00 , C08F299/08 , G03F7/004 , G03F7/028 , G03F7/029 , H01L21/027 , H05K3/06
摘要： PURPOSE:To attain sufficient photosetting not only on the surface but also up to the inside by incorporating a specified cationic dye, a sensitizing agent and an ultraviolet photopolymerization initiator. CONSTITUTION:The ultraviolet photopolymerization initiator, the cationic dye expressed by formula I and having absorption at near-infrared light area and the sensitizing agent expressed by formula II are combined and kneaded into polymeric unsatd. compd. In formula I, D is the cation having absorption at near-infrared light area, A is various anion. In formula II, each of R1-R4 is independently alkyl, aryl, allyl, alalkyl alkenyl, alkynyl, silyl, heterocyclic, substd. alkyl, aryl, allyl alalkyl, alkenyl alkynyl group, halogen atom or substd. silyl group. Z is quaternary ammonium, pyridinium, quinolinium cation, phosphonium or metal cation.

75. 发明专利

JPH0659500A METHOD FOR DISCOLORING PICTURE FORMED BY DISCOLORABLE COLORANT AND DISCOLORING DEVICE USED THEREFOR 失效
公开(公告)号：JPH0659500A
公开(公告)日：1994-03-04
申请号：JP21028292
申请日：1992-08-06
申请人： BANDO CHEMICAL IND , SHOWA DENKO KK
发明人： MUROFUSHI KATSUMI , HOSODA KIICHI , ABE YUKI , MIKATA YASUNORI
IPC分类号： G03G9/08 , G03G21/00
摘要： PURPOSE:To rapidly discolor the picture formed on a picture substrate by a discolorable colorant such as toner and ink by using this device. CONSTITUTION:A picture formed on a substrate by a discolorable colorant obtained by incorporating a near IR absorbing dye into a binder resin is treated with oil, then irradiated with near IR and discolored by using the discoloring device. The device is provided with an oil depositing material for treating the picture with oil and a near IR irradiation light source for irradiating the picture with near IR.

76. 发明专利

JPH05204278A DECOLORIZING METHOD AND DEVICE 失效
公开(公告)号：JPH05204278A
公开(公告)日：1993-08-13
申请号：JP30004891
申请日：1991-11-15
申请人： BANDO CHEMICAL IND , SHOWA DENKO KK
发明人： ABE YUKI , TABATA SHOJI , MUROFUSHI KATSUMI , HOSODA KIICHI
IPC分类号： B41J29/36 , B41J29/26 , G03G9/08 , G03G21/00
摘要： PURPOSE:To provide a decolorizing method and a decolorizing device capable of remarkably improving the decolorizing speed of a toner image formed on a sheet body. CONSTITUTION:A decolorizing means is provided with a heater 33 and a means(light source 35) for radiating near infrared rays. A recording paper 6 where the toner image is formed with toner which can be photochemically decolorized is heated by a heater 33 to a temperature which is equal to or above the glass transition temperature of the binding resin of the toner, or equal to or above the softening point of the binding resin, and under the thermal separation temperature of the component of the toner, and irradiated with the near infrared rays while holding the heated state.

77. 发明专利

JPH05197069A PAPER WITH ROUGH SKETCH DECOLORED BY NEAR INFRARED RAYS 失效
公开(公告)号：JPH05197069A
公开(公告)日：1993-08-06
申请号：JP942392
申请日：1992-01-22
申请人： BANDO CHEMICAL IND , SHOWA DENKO KK
发明人： MUROFUSHI KATSUMI , HOSODA KIICHI , SHIMA TAKEO
IPC分类号： B41M5/00 , B41M5/124 , B41M5/132 , B41M5/28 , B41M5/30 , B41M5/36 , B41M5/392 , C09B23/00 , C09D11/00 , C09D11/03 , C09D11/10 , D21H27/00 , G03C1/73
摘要： PURPOSE:To shorten a time for forming a drawing or the like by forming a rough sketch on a paper base with a recording material containing a specified near infrared ray-absorbing dye and a decoloring agent. CONSTITUTION:The rough sketch is drawned on the paper base with the recording material containing the near infrared ray-absorbing dye represented by formula I or II and the decoloring agent represented by formula III. In formulae I-III, X is a halogen or perchlorate ion, or PF6 , SbF6 , OH , -SO3 , or BF4 ; each of R -R is, independently, H, a hydrocarbon group having a heteroatom or not; Y is a cation having absorption in the near infrared region; each of R -R is, independently, alkyl, aryl, allyl, aralkyl, alkenyl, alkynyl, allyl, or the like; and each of R -R is, independently, H, alkyl, aryl, allyl, aralkyl, or the like.

78. 发明专利

JPH05188635A DECOLORING TONER FOR ELECTROSTATIC CHARGE IMAGE DEVELOPMENT 失效
公开(公告)号：JPH05188635A
公开(公告)日：1993-07-30
申请号：JP462992
申请日：1992-01-14
申请人： BANDO CHEMICAL IND , SHOWA DENKO KK
发明人： MUROFUSHI KATSUMI , HOSODA KIICHI , NAGAMI HARUSUKE
IPC分类号： G03G9/087 , G03G9/08 , G03G9/09
摘要： PURPOSE:To obtain a toner excellent in light resistance, decoloring property, preservation stability or the like by incorporating a specific near infrared absorbing dyestuff and a specific decoloring agent in a binder resin having a specific temp. of glass transition point and by providing a specific organic particulate and/or a specific inorganic particulate on the surface of a toner particle. CONSTITUTION:The binder resin contains the near infrared absorbing dyestuff expressed by formula I or II and the decoloring agent expressed by formula III and has 30-35 deg.C glass transition point and the organic particulate and/or inorganic particulate having >=60 deg.C anti-blocking temp. are provided on the surface of the toner particle. In the formula, X is halogen ion, perchlorate ion or the like, each of R -R is independently hydrogen atom, hydrocarbon group or the like, Y is a cation having absorption property in near infrared region. Each of R -R is independently alkyl group, allyl group or the like and at least one of them is 1-12C alkyl group. Each of R -R is independently hydrogen atom, alkyl group or the like.

79. 发明专利

JPH05181308A NEAR INFRARED RAY DISCOLORING TYPE TONER 失效
公开(公告)号：JPH05181308A
公开(公告)日：1993-07-23
申请号：JP34736391
申请日：1991-12-27
申请人： BANDO CHEMICAL IND , SHOWA DENKO KK
发明人： MUROFUSHI KATSUMI , HOSODA KIICHI , YAMASHIRO JIRO
IPC分类号： G03G9/087 , G03G9/08 , G03G9/09
摘要： PURPOSE:To provide the toner, which is obtained by blending the specified near infrared ray absorbable color and the discoloring agent in the binding resin and which can be discolored by radiating the near infrared rays and which has the excellent visible ray characteristic, by using the specified resin as the binding and welding resin. CONSTITUTION:This toner is obtained by blending the near infrared ray absorbable color expressed by a formula I or a formula II and the discoloring agent expressed by a formula III in the binding resin, and as the binding resin, the resin, of which melt viscosity at 110 deg.C is 10 P or less and the melt viscosity at 140 deg.C is 10 P or more, is used. In formulas, X represents halogen ion, perchloric acid ion, PF6- or the like; R -R respectively represent hydrogen atom, hydrocarbon group or hydrocarbon group including hetero group; Y represents cation having the absorbing characteristic in a near infrared ray area; R -R respectively represent alkyl group, aryl group or the like, and at least one of R -R represents alkyl group having 1-12 of carbon; R -R respectively represent hydrogen atom and alkyl group or the like.

80. 发明专利

JPH05150663A DECOLORIZING METHOD AND DECOLORIZING DEVICE 失效
公开(公告)号：JPH05150663A
公开(公告)日：1993-06-18
申请号：JP31702591
申请日：1991-11-29
申请人： BANDO CHEMICAL IND , SHOWA DENKO KK
发明人： ABE YUKI , TANIMOTO SADAO , MUROFUSHI KATSUMI , HOSODA KIICHI
IPC分类号： G03G15/09
摘要： PURPOSE:To provide a decolorizing method and a decolorizing device by which the decolorizing speed of a toner image formed on a sheet body is drastically improved and the trace of the toner image which is decolorized on the sheet body is made inconspicuous. CONSTITUTION:The toner image by toner which can be photochemically decolorized on a recording paper 6 is ground by the grinding roller 38 of a working device 37 and the thickness of a toner layer is made thin. Thereafter, the toner which is heated at least to the temperature equal to or above the glass-transition temperature TG of the binding resin of the toner, ideally, temperature equal to or above the softening point of the binding resin and the temperature under the thermal separation temperature of the component of the toner by a heating roller 87 and is in a rubber elastic state or a melted state is irradiated with near infrared rays.

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