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US4626284A Expired / Lapsed US ⏱️ 0.0 years remaining

Recording liquid

Assignee: Canon Inc
•
Filing: 1984-10-01
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Granted: 1986-12-02
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Expires: 2004-10-01
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Abstract

Abstract The recording liquid containing at least one of the naphthelenediazoic dyes shown by general formula (I) or (II): <IMAGE> (I) <IMAGE> (II) as defined in the claim, and a liquid medium for dissolving or dispersing the dye. The recording liquid of this invention has the viscosity and surface tension in the proper ranges, does not cause clogging discharging orifices of an ink-jet recorder and shows good storage stability. Furthermore, the recording liquid gives recorded images excellent in fixing speed, light resistance, water resistance, abrasion resistance and resolution.

Inventors

  • 👤 Tokuya Ohta
  • 👤 Masatsune Kobayashi
  • 👤 Konoe Miura
  • 👤 Hiroshi Takimoto

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 13:47
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/32; C09D11/328

Claims Analysis

Total Claims: 19
Claim 1
Independent Claim 341 words
A recording liquid for ink jet recording or for writing comprising at least one of naphthalenedisazoic dyes represented by general formula (I) or (II) and a liquid medium for dissolving and dispersing the dye; ##STR68## wherein Q represents a phenylene or naphthalene group substituted by a group shown by --SO 3 M 1 ; R represents a hydrogen atom, a lower alkyl group, a lower alkoxy group, a lower acylamino group, a nitro group or a halogen atom; R 1 represents a phenyl group substituted by a group shown by --SO 2 M 1 or a group shown by --COOM 1 , a lower alkyl group substituted by a group shown by --COOM 1 , or a lower alkylaminocarbonyl lower alkyl group; R 2 represents a hydrogen atom, a lower alkyl group substituted by a group shown by --COOM 1 , or a lower alkylaminocarbonyl lower alkyl group; M 1 represents an alkali metal atom, an ammonium cation, or H.A. (wherein A represents an amine); and n represents 0 or 1; ##STR69## wherein X represents an alkylcarbonylamino group having 2 to 5 carbon atoms, an arylcarbonylamino group, an alkylsulfonylamino group having 1 to 4 carbon atoms, an arylsulfonylamino group, an unsubstituted carbonamido group or a carbonamido group substituted by an alkyl group having 1 to 4 carbon atoms, an unsubstituted sulfonamido group, a sulfonamido group substituted by an alkyl group having 1 to 4 carbon atoms, or a group shown by --SO 3 M 2 ; R 3 represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, or a group shown by --CH 2 SO 3 M 2 ; R 4 represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms; said R 3 and R 4 do not represent, however, a hydrogen atom at the same time when X is a group shown by --SO 3 M 2 ; M 2 represents an alkali metal atom an ammonium cation, or H.A. (wherein A represents an amine); and n represents 0 or 1.
Claim 2
Dependent Claim 341 words
A recording liquid for ink jet recording or for writing comprising at least one of naphthalenedisazoic dyes represented by general formula (I) or (II) and a liquid medium for dissolving and dispersing the dye; ##STR68## wherein Q represents a phenylene or naphthalene group substituted by a group shown by --SO 3 M 1 ; R represents a hydrogen atom, a lower alkyl group, a lower alkoxy group, a lower acylamino group, a nitro group or a halogen atom; R 1 represents a phenyl group substituted by a group shown by --SO 2 M 1 or a group shown by --COOM 1 , a lower alkyl group substituted by a group shown by --COOM 1 , or a lower alkylaminocarbonyl lower alkyl group; R 2 represents a hydrogen atom, a lower alkyl group substituted by a group shown by --COOM 1 , or a lower alkylaminocarbonyl lower alkyl group; M 1 represents an alkali metal atom, an ammonium cation, or H.A. (wherein A represents an amine); and n represents 0 or 1; ##STR69## wherein X represents an alkylcarbonylamino group having 2 to 5 carbon atoms, an arylcarbonylamino group, an alkylsulfonylamino group having 1 to 4 carbon atoms, an arylsulfonylamino group, an unsubstituted carbonamido group or a carbonamido group substituted by an alkyl group having 1 to 4 carbon atoms, an unsubstituted sulfonamido group, a sulfonamido group substituted by an alkyl group having 1 to 4 carbon atoms, or a group shown by --SO 3 M 2 ; R 3 represents a hydrogen atom, an alkyl group having 1 to 8 carbon atoms, or a group shown by --CH 2 SO 3 M 2 ; R 4 represents a hydrogen atom or an alkyl group having 1 to 8 carbon atoms; said R 3 and R 4 do not represent, however, a hydrogen atom at the same time when X is a group shown by --SO 3 M 2 ; M 2 represents an alkali metal atom an ammonium cation, or H.A. (wherein A represents an amine); and n represents 0 or 1.
Claim 3
Dependent Claim 23 words
The recording liquid as claimed in claim 1, wherein the lower alkyl group is an alkyl group having 1 to 4 carbon atoms.
Claim 4
Dependent Claim 23 words
The recording liquid as claimed in claim 1, wherein the lower alkoxy group is an alkoxy group having 1 to 4 carbon atoms.
Claim 5
Dependent Claim 23 words
The recording liquid as claimed in claim 1, wherein the lower acylamino group is an acylamino group having 2 to 5 carbon atoms.
Claim 6
Dependent Claim 20 words
The recording liquid as claimed in claim 1, wherein the halogen atom is a chlorine atom or a bromine atom.
Claim 7
Dependent Claim 24 words
The recording liquid as claimed in claim 1, wherein the alkali metal atom is a lithium atom, a sodium atom or a potassium atom.
Claim 8
Dependent Claim 24 words
The recording liquid as claimed in claim 1, wherein the amine shown by A of H.A in general formulae (I) and (II) is triethanolamine.
Claim 9
Dependent Claim 30 words
The recording liquid as claimed in claim 1, wherein the aryl group shown by X in the general formula (II) is an aryl group having 6 to 10 carbon atoms.
Claim 10
Dependent Claim 30 words
The recording liquid as claimed in claim 1, wherein the aryl group shown by R 3 in general formula (II) is an aryl group having 6 to 10 carbon atoms.
Claim 11
Dependent Claim 85 words
The recording liquid as claimed in claim 1, wherein in the dye represented by general formula (I), Q is a naphthylene group substituted by a group shown by --SO 3 M 1 ; R is a hydrogen atom, a methyl group, a methoxy group, or an acetylamino group; R 1 is a phenyl group substituted by a group shown by --SO 3 M 1 ; R 2 is a hydrogen atom; M 1 is a sodium atom or a lithium atom; and n is 0.
Claim 12
Dependent Claim 75 words
The recording liquid as claimed in claim 1, wherein in the dye represented by general formula (I), Q is a naphthylene group represented by a group shown by --SO 3 M 1 ; R is a hydrogen atom; R 1 is a phenyl group substituted by a group shown by --SO 3 M 1 ; R 2 is a hydrogen atom; M 1 is a sodium atom, or a lithium atom; and n is 0.
Claim 13
Dependent Claim 68 words
The recording liquid as claimed in claim 1, wherein in the dye represented by general formula (II), X is an alkylcarbonylamino group having 2 to 5 carbon atoms R 3 is a hydrogen atom or a group shown by --CH 2 SO 3 M 2 ; R 4 is a hydrogen atom; M 2 is a sodium atom or a lithium atom; and n is 0 or 1.
Claim 14
Dependent Claim 56 words
The recording liquid as claimed in claim 1, wherein in the dye represented by general formula (II), X is an acetylamino group; R 3 is a group shown by --CH 2 SO 3 M 2 ; R 4 is a hydrogen atom; M 2 is a sodium atom or a lithium atom; and n is 0.
Claim 15
Dependent Claim 22 words
The recording liquid as claimed in claim 1, wherein said liquid is water or a mixture of water and a water-soluble solvent.
Claim 16
Dependent Claim 22 words
The recording liquid as claimed in claim 1, wherein the liquid medium is a mixture of water and a water-soluble organic solvent.
Claim 17
Dependent Claim 28 words
The recording liquid as claimed in claim 1, wherein the content of the dye is 0.1 to 20% by weight to the total weight of the recording liquid.
Claim 18
Dependent Claim 30 words
The recording liquid as claimed in claim 15, wherein the content of the water-soluble organic solvent is 5 to 89.9% by weight to the total weight of the recording liquid.
Claim 19
Dependent Claim 41 words
The recording liquid as claimed in claim 14, wherein the liquid medium is a mixture of water and a water-soluble organic solvent and the content of water is 10 to 90%, by weight to the total weight of the recording liquid.

References Cited (Backward Citations)

US4197135A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1989-12-01 1990-06-02 1990-12-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1993-12-01 1994-06-02 1994-12-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1997-12-01 1998-06-02 1998-12-02 $7700.00 Window Closed / Lapsed

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