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公开(公告)号：JPH02255875A
公开(公告)日：1990-10-16
申请号：JP30524589
申请日：1989-11-24
Applicant: CANON KK
Inventor： SUGA YUKO , NOGUCHI HIROMICHI
Abstract: PURPOSE:To obtain a recording fluid which can give an image excellent in water resistance and light resistance by mixing a pigment with a specified amount of a water-soluble resin, a water-soluble organic solvent containing a polyalcohol (alkyl ether) and an aliphatic monoalcohol, and water. CONSTITUTION:3-20wt.% water-dispersible pigment (A) (e.g. carbon black) is mixed with a water-soluble resin (B) of en acid value of 50-300 as a dispersant (e.g. styrene/maleic half ester/maleic anhydride copolymer) in such an amount that the weight ratio of component A to component B is (3-10):(2-1) and that the amount of component B not adsorbed by component A is 2 % or below, a water-soluble organic solvent (C) containing 15-50%, based on the recording fluid, polyalcohol (alkyl ether) (e.g. ethylene glycol) and 3-15%, based on the recording fluid, aliphatic monoalcohol (e.g. ethyl alcohol), and 10-60% water (D).
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公开(公告)号：JPH01135880A
公开(公告)日：1989-05-29
申请号：JP29403587
申请日：1987-11-24
Applicant: CANON KK
Inventor： SAKAEDA TAKESHI , SUGA YUKO , SHIROTA KATSUHIRO
IPC: C09D11/00 , C09D11/328
Abstract: PURPOSE:To obtain a recording liquid for ink jet recording, containing a compound having specific structural units as a recording agent component and a liquid medium for dissolving or dispersing the component and capable of carrying out recording of excellent printing quality for ordinary paper. CONSTITUTION:The aimed recording liquid containing (A) a recording agent which is a component forming recorded images containing one or more dyes (e.g., a compound expressed by formula II) containing structural units expressed by formula I in the molecule and (B) a liquid medium (e.g., methanol) for dissolving or dispersing the component (A). Furthermore, the aimed recording liquid is preferably used for ink jet recording.
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公开(公告)号：JPS63199780A
公开(公告)日：1988-08-18
申请号：JP3152187
申请日：1987-02-16
Applicant: CANON KK
Inventor： SAKAEDA TAKESHI , SUGA YUKO , SHIROTA KATSUHIRO
IPC: C09D11/00 , C09D11/02 , C09D11/03 , C09D11/328
Abstract: PURPOSE:To provide a recording fluid having satisfactory water resistance, light fastness and color tone, by dissolving a recording agent having such a structure that a plurality of structural units are bonded through a coupling group in a solvent. CONSTITUTION:A recording soln. prepared by dissolving in a solvent a recording agent having such a structure that a plurality of structural units are bonded through a coupling agent. Pref. examples of the recording agent include dyes having structural units selected from among dye residues of formula I and having a coupling group selected from among groups of formula II. In the formulae, Q1 and Q2 are each an unsubstd. or substd. benzene or naphthalene ring; R1 is H or amino; R2 is H or a sulfonic acid group which has formed a salt with a base; k is 0 or 1; M is a base selected from among an alkali metal, ammonia, and an org. amine; and p is 2-6. Pref. examples of the solvent include water and a mixture comprising water and a water-soluble org. solvent. A solvent comprising water and a polyhydric alcohol is particularly pref.
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公开(公告)号：JPS63117079A
公开(公告)日：1988-05-21
申请号：JP26242886
申请日：1986-11-04
Applicant: CANON KK , MITSUBISHI CHEM IND
Inventor： OTA NORIYA , KOBAYASHI MASATSUNE , SUGA YUKO , MIURA KONOE , TAKIMOTO HIROSHI , YONEYAMA TOMIO
Abstract: NEW MATERIAL:A compound of formula I (wherein R is COOM, SO3M, nitro, acylamino or Cl; X is carbonyl, triazinyl, phthaloyl or a group of formula II; Y is carbonyl, triazinyl or phthaloyl; Me is Cu, Ni or Co; M is an alkali metal, ammonium or an amine). EXAMPLE:A compound of formula III. USE:A disazo compound useful for use in a recording fluid for writing utensils, such as a fountain pen and a felt pen, and for ink jet recording. PREPARATION:An amine of formula IV is diazotized in a mineral acid with sodium nitrite and then coupled with a naphthol of formula V, thus giving a disazo compound of formula VI. This compound and a metallic salt are heated in water.
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公开(公告)号：JPS6372586A
公开(公告)日：1988-04-02
申请号：JP21722686
申请日：1986-09-17
Applicant: CANON KK
Inventor： SHIROTA KATSUHIRO , SAKAEDA TAKESHI , SUGA YUKO
Abstract: PURPOSE:To use various excellent dyes difficult in the combination use with cyan ink and to form a color image excellent in light fastness, by using a predetermined metal phthalocyanine dye or a metal-free phthalocyanine dye as the dye of the cyan ink and covering the color image with a transparent protective member containing at least an ultraviolet absorber. CONSTITUTION:In forming a color image by using a plurality of inks different in hue, a phthalocyanine dye coordinated with a metal of the Groups II, IV, VII, VIII or a metal-free phthalocyanine dye is used as the dye of cyan ink and a color image formed is covered with a transparent protective member containing at least an ultraviolet absorber. By using the phthalocyanine dye, the lowering in the light fastness of a dye having other hue used together is not generated and, further, by covering the color image with the transparent protective member, the color image extremely excellent in light fastness as a whole can be provided.
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Patent Agency Ranking
公开(公告)号：JPS6346276A
公开(公告)日：1988-02-27
申请号：JP18857886
申请日：1986-08-13
Applicant: CANON KK
Inventor： SHIROTA KATSUHIRO , SAKAEDA TAKESHI , SUGA YUKO
IPC: C09B47/24 , B41M5/00 , C09B47/30 , C09D11/00 , C09D11/02 , C09D11/033 , C09D11/328
Abstract: PURPOSE:To obtain the titled recording liquid, consisting of a specific phthalocyanine dye and solvent medium and capable of exhibiting fading preventing effect on magenta and black dyes and forming color images having high light resistance by an ink jet method. CONSTITUTION:A recording liquid consisting essentially of (A) a metal phthalocyanine dye having a metal atom, selected from group II, IV, VII or VIII metal atoms and coordinated at the center of the skeleton or metal-free phthalocyanine dye having a metal atom uncoordinated at the center of the skeleton and
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公开(公告)号：JPS62250067A
公开(公告)日：1987-10-30
申请号：JP9282586
申请日：1986-04-22
Applicant: CANON KK
Inventor： SUGA YUKO , SHIROTA KATSUHIRO , KOBAYASHI MASATSUNE , KIMURA TOSHIAKI
Abstract: NEW MATERIAL:A compound of formula I [A and B are (substituted)benzene ring or (substituted)naphthalene ring; m is 0 or 1; M is alkali metal, ammonium or amine] containing 0.0001-3wt% sulfate radical as an impurity. EXAMPLE:The compound of formula II. USE:Dye for recording liquid of ink-jet recording apparatus or writing utensil such as fountain pen, felt pen, etc. Ink containing said dye has excellent storage stability and dissolution stability, gives recorded image having excellent water- resistance and light-fastness and does not cause clogging of nozzle, orifice, etc. PREPARATION:The amine of formula A-NH2 is diazotized in a mineral acid and coupled with the amine of formula H-B-NH2 to obtain a monoazo compound of formula A-N=N-B-NH2. The product is diazotized in a mineral acid and coupled with a naphthol compound of formula III to obtain the disazo compound of formula IV, which is diazotized in the same manner and coupled with m- phenylenediaminesulfonic acid.
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公开(公告)号：JPS62197476A
公开(公告)日：1987-09-01
申请号：JP3904386
申请日：1986-02-26
Applicant: CANON KK
Inventor： SAKAEDA TAKESHI , SUGA YUKO , SHIROTA KATSUHIRO
IPC: C09D11/00 , C09D11/16 , C09D11/17 , C09D11/328
Abstract: PURPOSE:To obtain a recording liquid which gives a recorded image having excellent vividness of color, light resistance, water resistance, resolution, etc., and has excellent long-term storage stability, delivery stability, delivery response, etc., by mixing a specified recording agent and a liquid medium for dissolving or dispersing it. CONSTITUTION:A recording agent which comprises a dye of formula I (wherein R1-3 are each R4, COOH or a benzoylamino group; R4-5 are each R7 or NH2; R6 is alkyl, alkoxy or COOH, R7-8 are each H, OH or SO3H; R9-11 are each R1 or an anilino group; the above-mentioned COOH or SO3H may form a salt with an alkali metal, NH4 or an organic amine) and/or a dye of formula II [wherein Q1 is an (OH- and/or SO3H-substituted) benzene ring or naphthalene ring; Q2 is an (alkyl-, alkoxy- or SO3H-substituted) benzene ring or naphthalene ring; R1 is H or alkoxy; R2 is H or R3; R3 is SO3H; R4 is H or acetylamino; R5 is R2, NH2 or anilino], and 0.1-20wt% dye containing C.I. Direct Blue 86 and/or C.I. Direct Blue 199, is mixed with water or a mixed solvent comprising water and a water-soluble organic solvent to be dissolved therein.
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公开(公告)号：JPS62190271A
公开(公告)日：1987-08-20
申请号：JP3089886
申请日：1986-02-17
Applicant: CANON KK
Inventor： SAKAEDA TAKESHI , SUGA YUKO , SHIROTA KATSUHIRO
Abstract: PURPOSE:To provide a recording liquid containing a specific dye as a recording agent, having excellent recording characteristics such as long-term storage stability, ejection stability, etc., ink fixability, light-resistance, water-resistance, definition, resolution, etc., and useful as an ink for ink-jet recording. CONSTITUTION:The objective recording liquid contains preferably 0.1-20wt% one or more dyes of formula [Q1-Q4 are benzene ring or naphthalene ring which may be substituted with sulfonic acid residue, COOH, amino, anilino or acetylamino; X is -NHCONH-, -NH- or group of formula II (R1 and R2 are H or hydroxyethyl); n is 0 or 1; M is metal having >=2 valences; the sulfonic acid and COOH are present as a salt with alkali metal, ammonia or organic amine].
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公开(公告)号：JPS61285276A
公开(公告)日：1986-12-16
申请号：JP12699185
申请日：1985-06-11
Applicant: CANON KK , MITSUBISHI CHEM IND
Inventor： OOTA NORIYA , KOBAYASHI MASATSUNE , SUGA YUKO , MIURA KONOE , TAKIMOTO HIROSHI , YONEYAMA TOMIO
Abstract: NEW MATERIAL:The trisazo compound of formula I [A and B are (substituted) benzene ring or (substituted) naphtalene ring; m is 0 or 1; M is alkali metal, ammonium or amine]. EXAMPLE:The compound of formula II. USE:Recording liquid storable stably for a long period, usable without causing the clogging of nozzle and having high ejection response. PREPARATION:The amine of formula A-NH2 is diazotized with sodium nitrite, etc., in a mineral acid such as hydrochloric acid and then coupled with the amine of formula H-B-NH2 to obtain the monoazo compound of formula A-N= N-B-NH2. The monoazo compound is diazotized in the same manner and coupled with the naphthol compound of formula III. The obtained disazo compound of formula IV is diazotized and coupled with m-phenylenediaminesulfonic acid to obtain the objective compound.
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