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1. 发明专利

DE69612892D1 未知
公开(公告)号：DE69612892D1
公开(公告)日：2001-06-28
申请号：DE69612892
申请日：1996-02-09
申请人： CANON KK
发明人： KUKIMOTO TSUTOMU , URAWA MOTOO , OKADO KENJI , UGAI TOSHIYUKI , NOZAWA KEITA , YOSHIDA SATOSHI , KARAKI YUKI
IPC分类号： G03G9/08 , G03G9/09 , G03G9/097
摘要： A toner kit comprises a yellow toner comprising i) yellow toner particles containing a yellow colorant and a binder resin and ii) an inorganic fine powder, a magenta toner comprising i) magenta toner particles containing a magenta colorant and a binder resin and ii) an inorganic fine powder, a cyan toner comprising i) cyan toner particles containing a cyan colorant and a binder resin and ii) an inorganic fine powder, and a black toner comprising i) black toner particles containing at least one of carbon black and magnetic material and a binder resin and ii) an inorganic fine powder. The black toner has the value of shape factor SF-2 of 140 or less, and greater than the values of shape factors SF-2 of said yellow toner, magenta toner and cyan toner.

2. 发明专利

DE69628350T2 未知
公开(公告)号：DE69628350T2
公开(公告)日：2004-03-25
申请号：DE69628350
申请日：1996-02-09
申请人： CANON KK
发明人： KUKIMOTO TSUTOMU , URAWA MOTOO , OKADO KENJI , UGAI TOSHIYUKI , NOZAWA KEITA , YOSHIDA SATOSHI , KARAKI YUKI
IPC分类号： G03G9/08 , G03G9/09 , G03G9/097
摘要： A toner kit comprises a yellow toner comprising i) yellow toner particles containing a yellow colorant and a binder resin and ii) an inorganic fine powder, a magenta toner comprising i) magenta toner particles containing a magenta colorant and a binder resin and ii) an inorganic fine powder, a cyan toner comprising i) cyan toner particles containing a cyan colorant and a binder resin and ii) an inorganic fine powder, and a black toner comprising i) black toner particles containing at least one of carbon black and magnetic material and a binder resin and ii) an inorganic fine powder. The black toner has the value of shape factor SF-2 of 140 or less, and greater than the values of shape factors SF-2 of said yellow toner, magenta toner and cyan toner.

3. 发明专利

DE69718857T2 未知
公开(公告)号：DE69718857T2
公开(公告)日：2003-09-11
申请号：DE69718857
申请日：1997-07-30
申请人： CANON KK
发明人： YUSA HIROSHI , URAWA MOTOO , NOZAWA KEITA , KARAKI YUKI , MARUYAMA KAZUO
IPC分类号： G03G9/08 , G03G9/087 , G03G9/097
摘要： A toner for developing an electrostatic image is disclosed which has at least one endothermic peak in the temperature region of 120 DEG C or below in differential thermal analysis and contains, in its particles having particle diameters of 3 mu m or larger, not less than 90% by number of particles having a circularity of at least 0.90 and less than 30% by number of particles having a circularity of at least 0.98. The toner does not cause the re-transfer under high transfer current conditions and can realize the formation of good images with high image density. Also, an image forming method using the toner is disclosed.

4. 发明专利

DE69801458D1 未知
公开(公告)号：DE69801458D1
公开(公告)日：2001-10-04
申请号：DE69801458
申请日：1998-04-03
申请人： CANON KK
发明人： KARAKI YUKI , YUSA HIROSHI , KASUYA TAKASHIGE , MARUYAMA KAZUO , TAKANO MASAO
IPC分类号： G03G9/08 , G03G9/087 , G03G9/097

5. 发明专利

DE69926685D1 未知
公开(公告)号：DE69926685D1
公开(公告)日：2005-09-22
申请号：DE69926685
申请日：1999-05-12
申请人： CANON KK
发明人： KASUYA TAKASHIGE , YOSHIDA SATOSHI , OHNO MANABU , KARAKI YUKI , ITO MASANORI , KUKIMOTO TSUTOMU , YUSA HIROSHI , TAKIGUCHI TSUYOSHI , HANDA SATOSHI
IPC分类号： G03G9/08 , G03G9/097

6. 发明专利

DE69718857D1 未知
公开(公告)号：DE69718857D1
公开(公告)日：2003-03-13
申请号：DE69718857
申请日：1997-07-30
申请人： CANON KK
发明人： YUSA HIROSHI , URAWA MOTOO , NOZAWA KEITA , KARAKI YUKI , MARUYAMA KAZUO
IPC分类号： G03G9/08 , G03G9/087 , G03G9/097
摘要： A toner for developing an electrostatic image is disclosed which has at least one endothermic peak in the temperature region of 120 DEG C or below in differential thermal analysis and contains, in its particles having particle diameters of 3 mu m or larger, not less than 90% by number of particles having a circularity of at least 0.90 and less than 30% by number of particles having a circularity of at least 0.98. The toner does not cause the re-transfer under high transfer current conditions and can realize the formation of good images with high image density. Also, an image forming method using the toner is disclosed.

7. 发明专利

DE69702166D1 未知
公开(公告)号：DE69702166D1
公开(公告)日：2000-07-06
申请号：DE69702166
申请日：1997-07-30
申请人： CANON KK
发明人： URAWA MOTOO , NOZAWA KEITA , YUSA HIROSHI , KASUYA TAKASHIGE , KARAKI YUKI , MARUYAMA KAZUO , TAKANO MASAO
IPC分类号： G03G9/08 , G03G9/083 , G03G9/087 , G03G9/09 , G03G13/20 , G03G15/01 , G03G15/20
摘要： A magnetic black toner for electrophotography, includes: (a) magnetic black toner particles containing a binder resin, a magnetic material in 30 - 200 wt. parts per 100 wt. parts of the binder resin, and a first solid wax, and (b) first inorganic fine powder. The first solid wax (ii) provides a DSC heat-absorption main peak in a range of 60 - 120 C, and (iii) shows a molecular weight distribution factor Mw/Mn of 1.0 - 2.0. The binder resin (iv) has a THF (tetrahydrofuran)-insoluble content of at most 5 wt. %, and (v) contains a THF-soluble content showing a GPC molecular weight distribution including a content (M1) of 40 - 70 % in molecular weights of below 5x10 , a content (M2 - 5x10 , and a content (M3 . (vi) The magnetic black toner exhibits a tan delta of 0.5 - 3.0 in a range of 150 - 190 C and a tan delta at 150 C that is equal to or larger than a tan delta at 100 C. The magnetic black toner shows a good fixability in an oil-less fixation system to provide a fixed image having a gloss comparable to one obtained by a non-magnetic color toner.

8. 发明专利

HK1008900A1 MAGNETIC BLACK TONER AND MULTI-COLOR OR FULL-COLOR IMAGE FORMING METHOD 未知
公开(公告)号：HK1008900A1
公开(公告)日：1999-05-21
申请号：HK98109642
申请日：1998-08-03
申请人： CANON KK
发明人： KASUYA TAKASHIGE , YUSA HIROSHI , URAWA MOTOO , NOZAWA KEITA , KARAKI YUKI , MARUYAMA KAZUO , TAKANO MASAO
IPC分类号： G03G9/08 , G03G9/083 , G03G9/087 , G03G9/09 , G03G13/20 , G03G15/01 , G03G15/20 , G03G
摘要： A magnetic black toner for electrophotography, includes: (a) magnetic black toner particles containing a binder resin, a magnetic material in 30 - 200 wt. parts per 100 wt. parts of the binder resin, and a first solid wax, and (b) first inorganic fine powder. The first solid wax (ii) provides a DSC heat-absorption main peak in a range of 60 - 120 C, and (iii) shows a molecular weight distribution factor Mw/Mn of 1.0 - 2.0. The binder resin (iv) has a THF (tetrahydrofuran)-insoluble content of at most 5 wt. %, and (v) contains a THF-soluble content showing a GPC molecular weight distribution including a content (M1) of 40 - 70 % in molecular weights of below 5x10 , a content (M2 - 5x10 , and a content (M3 . (vi) The magnetic black toner exhibits a tan delta of 0.5 - 3.0 in a range of 150 - 190 C and a tan delta at 150 C that is equal to or larger than a tan delta at 100 C. The magnetic black toner shows a good fixability in an oil-less fixation system to provide a fixed image having a gloss comparable to one obtained by a non-magnetic color toner.

9. 发明专利

DE60034630T2 未知
公开(公告)号：DE60034630T2
公开(公告)日：2008-01-31
申请号：DE60034630
申请日：2000-06-29
申请人： CANON KK
发明人： YUSA HIROSHI , YOSHIDA SATOSHI , KASUYA TAKASHIGE , KARAKI YUKI
IPC分类号： G03G9/087
摘要： A toner is principally constituted by a binder resin, a colorant and a wax. The toner has a maximum heat-absorption peak of 60 - 135 DEG C as measured by differential scanning calorimetry (DSC). The toner further has a viscoelastic characteristic measured at an angular frequency of the toner of 6.28 rad/sec including: a temperature giving a loss molecules G'' of 3x10 Pa of 90 - 115 DEG C, a temperature giving a loss modulus G'' of 2x10 Pa of 95 - 120 DEG C, a temperature giving a loss modulus G'' of 1x10 Pa of 105 - 135 DEG C, a tan delta (loss modulus G''/storage modulus G') when G'' = 1x10 - 3x10 Pa of 0.6 - 2.0, a storage modulus at 170 DEG C (G' (170 DEG C)) of 1x10 - 1x10 Pa, a loss modulus at 170 DEG C (G'' (170 DEG C)) of 1x10 - 1x10 Pa, and a ratio of a tan delta at 170 DEG C (tan delta 170) to a tan delta at 150 DEG C (tan delta 150) (tan delta 170/tan delta 150) of 1.05 - 1.6. The toner contains a tetrahydrofuran (THF)-soluble content exhibiting a molecular weight distribution according to gel permeation chromatography (GPC) chromatogram providing a main peak in a molecular weight region of 2,000 - 30,000 and a ratio (Mw/Mn) of above 100 between weight-average molecular weight (Mw) and number-average molecular weight (Mn). The resultant toner is effective in improving a low-temperature fixability and a high-temperature anti-offset characteristic while retaining an appropriate gloss of a fixed image in a broader temperature range.

10. 发明专利

DE60034630D1 未知
公开(公告)号：DE60034630D1
公开(公告)日：2007-06-14
申请号：DE60034630
申请日：2000-06-29
申请人： CANON KK
发明人： YUSA HIROSHI , YOSHIDA SATOSHI , KASUYA TAKASHIGE , KARAKI YUKI
IPC分类号： G03G9/087
摘要： A toner is principally constituted by a binder resin, a colorant and a wax. The toner has a maximum heat-absorption peak of 60 - 135 DEG C as measured by differential scanning calorimetry (DSC). The toner further has a viscoelastic characteristic measured at an angular frequency of the toner of 6.28 rad/sec including: a temperature giving a loss molecules G'' of 3x10 Pa of 90 - 115 DEG C, a temperature giving a loss modulus G'' of 2x10 Pa of 95 - 120 DEG C, a temperature giving a loss modulus G'' of 1x10 Pa of 105 - 135 DEG C, a tan delta (loss modulus G''/storage modulus G') when G'' = 1x10 - 3x10 Pa of 0.6 - 2.0, a storage modulus at 170 DEG C (G' (170 DEG C)) of 1x10 - 1x10 Pa, a loss modulus at 170 DEG C (G'' (170 DEG C)) of 1x10 - 1x10 Pa, and a ratio of a tan delta at 170 DEG C (tan delta 170) to a tan delta at 150 DEG C (tan delta 150) (tan delta 170/tan delta 150) of 1.05 - 1.6. The toner contains a tetrahydrofuran (THF)-soluble content exhibiting a molecular weight distribution according to gel permeation chromatography (GPC) chromatogram providing a main peak in a molecular weight region of 2,000 - 30,000 and a ratio (Mw/Mn) of above 100 between weight-average molecular weight (Mw) and number-average molecular weight (Mn). The resultant toner is effective in improving a low-temperature fixability and a high-temperature anti-offset characteristic while retaining an appropriate gloss of a fixed image in a broader temperature range.

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