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公开(公告)号：JPH0257095B2
公开(公告)日：1990-12-04
申请号：JP3440584
申请日：1984-02-27
Applicant: MITSUI TOATSU CHEMICALS
Inventor： KATO KIMITOSHI , AIGA HIROSHI , MIKOTA TAMIO , SAKAI TSUNEHIRO
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公开(公告)号：JPH02110573A
公开(公告)日：1990-04-23
申请号：JP26271388
申请日：1988-10-20
Applicant: MITSUI TOATSU CHEMICALS
Inventor： TAKUMA HIROSUKE , YOSHIDA MARI , MIKOTA TAMIO , IGATA AKITOSHI
Abstract: PURPOSE:To obtain images of a bright cyan color free from fogging by incorporating a specific anthraquinone dye into a binder resin. CONSTITUTION:The dye expressed by the formula I is incorporated into the binder resin. This toner compsn. is the dye which has excellent melting miscibility, is stable in the image density obtd. in continuous copying by repetitive developing and has the good right resistant fastness of the cyan color. The production of the color toner by using the dye of this cyan color is executed by incorporating the compd. expressed by the formula I preferably at 0.1 to 10wt.% into the binder resin, by which the color toner is obtd. The images of the bright cyan color having no fogging are obtd. in this way.
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公开(公告)号：JPH0251165A
公开(公告)日：1990-02-21
申请号：JP20186888
申请日：1988-08-15
Applicant: MITSUI TOATSU CHEMICALS
Inventor： TAKUMA HIROSUKE , YOSHIDA MARI , MIKOTA TAMIO , IGATA AKITOSHI
Abstract: PURPOSE:To obtain a distinct picture image of Magenta color contg. no fog and to improve color fastness of the picture image by incorporating a specified anthraquinone dye into a binder resin. CONSTITUTION:A color toner is obtd. by incorporating pref. 0.1-10pts.wt. compd. expressed by formula I into a binder resin. In formula I, R is an H atom, halogen atom, alkyl group, alkoxy group, alkoxyalkyl group, alkoxyalkoxy group, aralkyl group, alkoxycarbonyl group, or alkyl carboxy group. Thus, a toner compsn. having high miscibility in molten state is obtd. Its practical value is increased because the toner compsn. contains a Magenta dye having high light fastness and provides picture images having a stable image density when it is used for continuous copy in a repetitive development.
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公开(公告)号：JPH01227162A
公开(公告)日：1989-09-11
申请号：JP5249788
申请日：1988-03-08
Applicant: MITSUI TOATSU CHEMICALS
Inventor： TAKUMA HIROSUKE , OYAMA TSUKASA , AIDA ISAMU , MIKOTA TAMIO , KOSHIDA HITOSHI , IGATA AKITOSHI
Abstract: PURPOSE:To improve the light resistance of an image and the compatibility of a toner and a resin and to prevent generation of fogging by incorporating a specific anthraquinone compd. into the above compsn. CONSTITUTION:The anthraquinone expressed by the formula I exhibits good performance as a yellow dye for a color toner. In the formula I, R1, R2, R3, and R4 respectively independently denote a hydrogen atom, halogen atom, alkyl group or alkoxy group. The image of a bright yellow color without having the fogging is obtd. and the light resistance thereof is improved when copying is executed by using such compsn.
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公开(公告)号：JPS6272781A
公开(公告)日：1987-04-03
申请号：JP21329585
申请日：1985-09-26
Applicant: MITSUI TOATSU CHEMICALS
Inventor： ITO NAOTO , AIGA HIROSHI , TAKUMA HIROSUKE , KINOSHITA MITSUNORI , MIKOTA TAMIO
Abstract: PURPOSE:To provide the titled novel anthraquione-based coloring matter having specific structure, of large dichromatic ratio, high in durability, highly compatible with liquid crystal, giving adequate color-developing ability even with small amount, suitable for liquid crystal display in watches, etc. CONSTITUTION:For example, a coloring matter of formula I is allowed to react with dimethyl sulfoxide, etc. at 95 deg.C for 6hr followed by discharge into water. The resultant system is subjected to ammonium persulfate followed by filtration, washing with water, drying, etc., thus obtaining the objective coloring matter of formula II (R , R are each 1-20C alkyl) having absorption at wavelength between 700 and 800nm.
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Patent Agency Ranking
公开(公告)号：JPH0643559B2
公开(公告)日：1994-06-08
申请号：JP27986386
申请日：1986-11-26
Applicant: MITSUI TOATSU CHEMICALS
Inventor： KARASAWA AKIO , AIGA HIROSHI , IGATA AKITOSHI , KANETOMI MASATO , MIKOTA TAMIO
IPC: C09B1/32
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公开(公告)号：JPH02580A
公开(公告)日：1990-01-05
申请号：JP26065388
申请日：1988-10-18
Applicant: MITSUI TOATSU CHEMICALS
Inventor： IGATA AKITOSHI , MIKOTA TAMIO
IPC: B41M5/385 , B41M5/035 , B41M5/26 , B41M5/30 , B41M5/388 , B41M5/39 , C07D213/84 , C09B29/09 , D06P5/00
Abstract: PURPOSE:To obtain a colorant for yellow heat transfer having excellent various rigidity, color value, sufficient heat resistance stability and transferring speed at the time of transfer by composing the title colorant of a specific colorant. CONSTITUTION:A colorant represented by a formula (where R is lower alkyl group, R is alkenyl group, alkoxyalkyl group, aralkyl group, cycloalkyl group, alkenyl group or lower alkoxycarbonylmethyl group) is provided. The concrete example of the R includes lower alkyl group of methyl group, ethyl group. The R includes alkyl group of methyl group, ethyl group, alkoxyalkyl group of methoxymethyl group, methoxyethyl group, etc. aralkyl group of benzyl group, phenethyl group, etc., cycloalkyl group of cyclopropyl group, cyclobutyl group, etc., alkenyl group of aryl group, 1-butenyl group, etc. Further, it includes lower alkoxycarbonylmethyl group of methoxycarbonylmethyl group, ethoxycarbonylmethyl group, etc.
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公开(公告)号：JPH01284865A
公开(公告)日：1989-11-16
申请号：JP11512188
申请日：1988-05-12
Applicant: MITSUI TOATSU CHEMICALS
Inventor： TAKUMA HIROSUKE , OYAMA TSUKASA , IGATA AKITOSHI , MIKOTA TAMIO , AIDA ISAMU , KOSHIDA HITOSHI
Abstract: PURPOSE:To improve the molten mixing property of a toner, the stability of an optic density at the time of a continuous copying and the light-proofing property of a toner composition by incorporating a specified anthraquinone type color matter in the title composition. CONSTITUTION:The toner composition is formed by dispersing the anthraqinone type color matter shown by formula I in a binding resin (such as a styrene- acrylate copolymer). In the formula, R1 is hydrogen atom or alkyl or cycloalkyl group, etc., R2-R4 are each hydrogen atom, alkyl or alkoxy group, etc. Said color matter is formed by heating 1-substd. amino-4-bromoanthraqinone and a substd. aniline compd. in a polar org. solvent in the presence of a base, and is composed of a color matter shown by formula II, etc.
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公开(公告)号：JPH01258996A
公开(公告)日：1989-10-16
申请号：JP8720788
申请日：1988-04-11
Applicant: MITSUI TOATSU CHEMICALS
Inventor： OYAMA TSUKASA , MIKOTA TAMIO , AIDA ISAMU , TAKUMA HIROSUKE , KOSHIDA HITOSHI , IGATA AKITOSHI
Abstract: PURPOSE:To enhance heat-resistance, light-resistance, sublimation speed, hue, ribbon stability, and the like, by using an anthraquinone dye of Cyan shown by a specific formula as a dye for sublimation-transfer recording. CONSTITUTION:An anthraquinone dye for sublimation-transfer recording is synthesized by employing a normal method in which 1,5-dichloro-4,8- dihydroxyanthraquinone as a raw material is condensed with anilines. This anthraquinone dye is shown by a formula I (a benzene nucleus A represents one or more alkyl, alkoxy, hydroxyl, trifluoromethyl, alkoxyalkyl, hydroxyalkyl, carbonyl, carboxy, and phenyl groups, which may be the same or independent). This dye is enhanced in solubility to organic solvent and dispersibility to water and capable of easily preparing a high-density ink.
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公开(公告)号：JPH01231062A
公开(公告)日：1989-09-14
申请号：JP5633388
申请日：1988-03-11
Applicant: MITSUI TOATSU CHEMICALS
Inventor： TAKUMA HIROSUKE , OYAMA TSUKASA , AIDA ISAMU , MIKOTA TAMIO , KOSHIDA HITOSHI , IGATA AKITOSHI
IPC: G03G9/09
Abstract: PURPOSE:To obtain an image of a sharp yellow color free from fog and good light resistance by incorporating a specified pyridone type dye in a binder resin. CONSTITUTION:The binder resin contains one of the pyridone type dye represented by formula I in which each of R1 and R2 is H, halogen, alkyl, or alkoxy; and R3 is alkyl, alkoxyalkyl, or aralkyl. The addition amount of said dye is controlled in accordance with the electrostatic chargeability of the binder resin, or those of a colorant and additives auxiliary added, compatibility with the resin, dispersion process, and the like, but in general it is preferred to use the dye in an amount of 0.1-10wt.%.
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