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US 6,141,027 AGranted
Image recording method for recording a high quality image with an aqueous dye solution and accompanying apparatus
AssigneeFuji Xerox Co., Ltd.
InventorsEiichi Akutsu, Shigemi Ohtsu, Lyong Sun Pu
Life of this patent
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Abstract
An image recording method and apparatus with at least one dye having a general formula dissolved in an aqueous liquid, an image supporting member and a counter electrode opposing the image supporting member placed in the aqueous liquid, and an electric current or electric field applied between the image supporting member and counter electrode according to an image pattern to electrochemically deposit an image forming material containing the dye onto a surface of the image supporting member to simply and safely form a high quality image.
Claims19
An image recording method comprising the steps of:
- dissolving at least one dye represented by the following general formula (I) in an aqueous liquid,
- placing an image supporting member and a counter electrode opposing said image supporting member in said aqueous liquid, and
- applying an electric current or field according to an image pattern between said image supporting member and counter electrode to electrochemically deposit an image forming material containing said dye onto a surface of the image supporting member to form an image,
- Ar.sup.1 N.dbd.N--J--X--(NR.sup.1 --L--NR.sup.2 --X).sub.n --J--N.dbd.N--Ar.sup.2 (I)
- wherein each of Ar.sup.1 and Ar.sup.2 independently represents a substituted or unsubstituted aryl group, provided that at least one of Ar.sup.1 and Ar.sup.2 has at least one substituent selected from a --COSH group and a --COOH group;
- J represents a group of the following formula (j);
- ##STR4## each of R.sup.1 and R.sup.2 independently represents a hydrogen atom, a substituted or unsubstituted alkyl, or a substituted or unsubstituted alkenyl group, L represents a bivalent organic linking group;
- X each independently represents a carbonyl group or a group of the formula (1), (2) or (3);
- n represents an integer of 0 or 1, ##STR5## in the formulae (1) to (3), Z represents --NR.sup.3 R.sup.4, --OR.sup.5 or --SR.sup.5 ;
- Y represents H, Cl, Z, --SR.sup.6 or --OR.sup.6 ;
- and E represents Cl or CN, in which R.sup.3, R.sup.4, R.sup.5 and R.sup.6 each independently represents a substituted or unsubstituted alkyl, a substituted or unsubstituted alkenyl, a substituted or unsubstituted aralkyl group, and R.sup.3 and R.sup.4 may form a 5- or 6-membered ring, together with a bonded N atom.
8 more elements
An image recording apparatus comprising:
- a liquid accommodating member which accommodates an aqueous liquid in which at least one dye represented by general formula (I) is dissolved,
- an image supporting member placed in the aqueous liquid,
- a counter electrode placed in the aqueous liquid opposing on the image supporting member, and
- an electric source which applies an electric current or field between the image supporting member and counter electrode according to an image pattern:
- Ar.sup.1 N.dbd.N--J--X--(NR.sup.1 --L--NR.sup.2 --X).sub.n --J--N.dbd.N--Ar.sup.2 (I)
- wherein each of Ar.sup.1 and Ar.sup.2 independently represents a substituted or unsubstituted aryl group, provided that at least one of Ar.sup.1 and Ar.sup.2 has at least one substituent selected from a --COSH group and a --COOH group;
- J represents a group of the following formula (j);
- ##STR6## each of R.sup.1 and R.sup.2 independently represents a hydrogen atom, a substituted or unsubstituted alkyl, a substituted or unsubstituted alkenyl group;
- L represents a bivalent organic linking group;
- X each independently represents a carbonyl group or a group of the formula (1), (2) or (3);
- and n represents an integer of 0 or 1, ##STR7## in the formulae (1) to (3), Z represents --NR.sup.3 R.sup.4, --OR.sup.5 or --SR.sup.5 ;
- Y represents H, Cl, Z, --SR.sup.6 or --OR.sup.6 ;
- and E represents Cl or CN, in which R.sup.3, R.sup.4, R.sup.5 and R.sup.6 each independently represents a substituted or unsubstituted alkyl, a substituted or unsubstituted alkenyl, a substituted or unsubstituted aralkyl group, and R.sup.3 and R.sup.4 may form a 5- or 6-membered ring, together with a bonded N atom.
10 more elements
Dependencies are inferred from the claim text.