EP0345763A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Recording solution
Assignee: Canon Inc
•
Filing: 1989-06-07
•
Granted: —
•
Expires: 2009-06-07
Abstract
Abstract A recording solution, comprising a recording agent which is a component that forms a recorded image and a liquid medium in which said recording agent is dissolved or dispersed, wherein said recording agent comprises a dye represented by the Formula (A) wherein R₁ and R₂ each represent a substituent; X represents a residual group of an orgaic acid; and M represents a base selected from the group consisting of an alkali metal group, an ammonium group, and an organic amine group and at lease one dye selected from the group consisting of C.I. Acid Red 131, C.I. Acid Red 274, CI. Direct Red 227 and CI. Direct Red 9, is provided.
Inventors
- 👤 Katsuhiro Shirota
- 👤 Osamu Nishiwaki
- 👤 Kazuo Iwata
- 👤 Shinichi Tochihara
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-25 18:29
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/32; C09D11/328; C09B; C09B29/00; C09B29/24; C09B29/28; C09B29/30
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
109 words
A recording solution, comprising a recording agent which is a component that forms a recorded image and a liquid medium in which said recording agent is dissolved or dispersed, wherein said recording agent comprises a dye represented by the Formula (A) wherein R₁ and R₂ each represent a substituent; X represents a residual group of an organic acid; and M represents a base selected from the group consisting of an alkali metal group, an ammonium group, and an organic amine group; and at least one dye selected from the group consisting of C.I. Acid Red 131, C.I. Acid Red 274, C.I. Direct Red 227 and C.I. Direct Red 9.
Claim 2
Dependent Claim
109 words
A recording solution, comprising a recording agent which is a component that forms a recorded image and a liquid medium in which said recording agent is dissolved or dispersed, wherein said recording agent comprises a dye represented by the Formula (A) wherein R₁ and R₂ each represent a substituent; X represents a residual group of an organic acid; and M represents a base selected from the group consisting of an alkali metal group, an ammonium group, and an organic amine group; and at least one dye selected from the group consisting of C.I. Acid Red 131, C.I. Acid Red 274, C.I. Direct Red 227 and C.I. Direct Red 9.
Claim 3
Dependent Claim
23 words
The recording solution according to Claim 1, wherein said recording agent comprises the dye represented by Formula (A) and C.I. Direct Red 227.
Claim 4
Dependent Claim
36 words
The recording solution according to Claim 1, wherein said dye represented by Formula (A) is contained in an amount of from 20 to 80 % by weight based on the total weight of the recording agents.
Claim 5
Dependent Claim
118 words
A recording solution, comprising a recording agent which is a component that forms a recorded image and a liquid medium in which said recording agent is dissolved or dispersed, wherein said recording agent comprises a magenta component and a yellow component, said magenta component being composed of a dye represented by the Formula (A) wherein R₁ and R₂ each represent a substituent; X represents a residual group of an organic acid; and M represents a base selected from the group consisting of an alkali metal group, an ammonium group, and an organic amine group; and C.I. Direct Red 227; said yellow component being composed of at least one of C.I. Direct Yellow 86 and C.I. Direct Yellow 142.
Claim 6
Dependent Claim
118 words
A recording solution, comprising a recording agent which is a component that forms a recorded image and a liquid medium in which said recording agent is dissolved or dispersed, wherein said recording agent comprises a magenta component and a yellow component, said magenta component being composed of a dye represented by the Formula (A) wherein R₁ and R₂ each represent a substituent; X represents a residual group of an organic acid; and M represents a base selected from the group consisting of an alkali metal group, an ammonium group, and an organic amine group; and C.I. Direct Red 227; said yellow component being composed of at least one of C.I. Direct Yellow 86 and C.I. Direct Yellow 142.
Claim 7
Dependent Claim
51 words
The recording solution according to Claim 4, which is used in a recording system in which recording is performed by applying a heat energy corresponding to a recording signal, to a recording solution in the room of a recording head, said energy causing ink droplets to fly onto a recording surface.
Claim 8
Dependent Claim
27 words
The recording solution according to Claim 4, wherein said dye represented by Formula (A) holds from 10 to 90 % by weight in the whole recording agents.
Claim 9
Dependent Claim
26 words
The recording solution according to Claim 4, wherein said C.I. Direct Red 227 holds from 20 to 60 % by weight in the whole recording agents.
Claim 10
Dependent Claim
20 words
The recording solution according to Claim 4, wherein said liquid medium comprises a polyhydric alcohol or an aliphatic monovalent alcohol.
Claim 11
Dependent Claim
26 words
The recording solution according to Claim 8, wherein said polyhydric alcohol is at least one selected from the group consisting of ethylene glycol, thiodiglycol and glycerol.
Claim 12
Dependent Claim
28 words
The recording solution according to Claim 8, wherein said aliphatic monovalent alcohol is selected from the group consisting of methyl alcohol, ethyl alcohol, isopropyl alcohol and n-butyl alcohol.
Claim 13
Dependent Claim
127 words
A recording solution, comprising a recording agent which is a component that forms a recorded image and a liquid medium in which said recording agent is dissolved or dispersed, wherein said recording agent comprises a magenta component and a cyan component, said magenta component being composed of a dye represented by the Formula (A) wherein R₁ and R₂ each represent a substituent; X represents a residual group of an organic acid; and M represents a base selected from the group consisting of an alkali metal group, an ammonium group, and an organic amine group; and C.I. Direct Red 227; said cyan component being composed of at least one selected from the group consisting of C.I. Direct Blue 199, C.I. Direct Blue 86 and C.I. Acid Blue 198.
Claim 14
Dependent Claim
127 words
A recording solution, comprising a recording agent which is a component that forms a recorded image and a liquid medium in which said recording agent is dissolved or dispersed, wherein said recording agent comprises a magenta component and a cyan component, said magenta component being composed of a dye represented by the Formula (A) wherein R₁ and R₂ each represent a substituent; X represents a residual group of an organic acid; and M represents a base selected from the group consisting of an alkali metal group, an ammonium group, and an organic amine group; and C.I. Direct Red 227; said cyan component being composed of at least one selected from the group consisting of C.I. Direct Blue 199, C.I. Direct Blue 86 and C.I. Acid Blue 198.
Claim 15
Dependent Claim
51 words
The recording solution according to Claim 11, which is used in a recording system in which recording is performed by applying a heat energy corresponding to a recording signal, to a recording solution in the room of a recording head, said energy causing ink droplets to fly onto a recording surface.
Claim 16
Dependent Claim
27 words
The recording solution according to Claim 11, wherein said dye represented by Formula (A) holds from 2 to 50 % by weight in the whole recording agents.
Claim 17
Dependent Claim
26 words
The recording solution according to Claim 11, wherein said C.I. Direct Red 227 holds from 5 to 30 % by weight in the whole recording agents.
Claim 18
Dependent Claim
20 words
The recording solution according to Claim 11, wherein said liquid medium comprises a polyhydric alcohol or an aliphatic monovalent alcohol.
Claim 19
Dependent Claim
26 words
The recording solution according to Claim 15, wherein said polyhydric alcohol is at least one selected from the group consisting of ethylene glycol, thiodiglycol and glycerol.
Claim 20
Dependent Claim
28 words
The recording solution according to Claim 15, wherein said aliphatic monovalent alcohol is selected from the group consisting of methyl alcohol, ethyl alcohol, isopropyl alcohol and n-butyl alcohol.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.