US5178671A — Ink, and ink-jet recording method and apparatus e…

Claim 1

Independent Claim 204 words

An ink comprising a recording agent and a liquid medium for dissolution or dispersion thereof, the recording agent being a compound represented by the general formula ##STR11## where R 1 is a radical selected from the group of lower alkyl, lower alkoxy, --COOM, and --SO 3 M; R 2 and R 3 are respectively a radical selected from the group of hydrogen, lower alkyl, lower alkoxy, amino, --NHCOCH 3 , --SO 3 M, and COOM; R 4 and R 5 are respectively a radical selected from the group of lower alkyl, lower alkoxy, --NHCOCH 3 , --SO 3 M, and COOM; A is ##STR12## R 6 is a radical selected from the group of acetyl, benzoyl, --SO 2 C 6 H 5 , --SO 2 C 6 H 4 --CH 3 , phenyl, which is unsubstituted or substituted by --COOM or methyl, and ##STR13## R 7 and R 8 are respectively a radical selected from the group of hydrogen, hydroxyl, and --C 2 H 4 OH; R 9 and R 10 are respectively a radical selected from the group of hydrogen, amino, hydroxyl and lower alkoxy; n is 1 or 2; m is 0 or 1; and M is an alkali metal or ammonium.

Claim 2

Dependent Claim 204 words

An ink comprising a recording agent and a liquid medium for dissolution or dispersion thereof, the recording agent being a compound represented by the general formula ##STR11## where R 1 is a radical selected from the group of lower alkyl, lower alkoxy, --COOM, and --SO 3 M; R 2 and R 3 are respectively a radical selected from the group of hydrogen, lower alkyl, lower alkoxy, amino, --NHCOCH 3 , --SO 3 M, and COOM; R 4 and R 5 are respectively a radical selected from the group of lower alkyl, lower alkoxy, --NHCOCH 3 , --SO 3 M, and COOM; A is ##STR12## R 6 is a radical selected from the group of acetyl, benzoyl, --SO 2 C 6 H 5 , --SO 2 C 6 H 4 --CH 3 , phenyl, which is unsubstituted or substituted by --COOM or methyl, and ##STR13## R 7 and R 8 are respectively a radical selected from the group of hydrogen, hydroxyl, and --C 2 H 4 OH; R 9 and R 10 are respectively a radical selected from the group of hydrogen, amino, hydroxyl and lower alkoxy; n is 1 or 2; m is 0 or 1; and M is an alkali metal or ammonium.

Claim 3

Dependent Claim 21 words

The ink of claim 1, wherein a pH value of the ink is within the range of from 4 to 10.

Claim 4

Dependent Claim 31 words

The ink of claim 1, wherein the recording agent is contained in an amount within the range of from 0.1 to 15% by weight of the total weight of the ink.

Claim 5

Dependent Claim 20 words

The ink of claim 1, wherein the liquid medium comprises a mixed solvent of water and a water-soluble organic solvent.

Claim 6

Dependent Claim 30 words

The ink of claim 4, wherein the water is contained in an amount within the range of from 10 to 97.5% by weight of the total weight of the ink.

Claim 7

Dependent Claim 30 words

The ink of claim 4, wherein the water-soluble organic solvent is contained in an amount within the range of from 2 to 80% of the total weight of the ink.

Claim 8

Dependent Claim 211 words

In an ink-jet recording method in which recording is conducted by ejecting droplets of an ink through an orifice onto a recording medium in response to a recording signal, the improvement comprising employing as the ink a composition comprising a recording agent represented by the general formula ##STR14## where R 1 is a radical selected from the group of lower alkyl, lower alkoxy, --COOM, and --SO 3 M; R 2 and R 3 are respectively a radical selected from the group of hydrogen, lower alkyl, lower alkoxy, amino, --NHCOCH 3 , --SO 3 M, and COOM; R 4 and R 5 are respectively a radical selected from the group of lower alkyl, lower alkoxy, --NHCOCH 3 , --SO 3 M, and COOM; A is ##STR15## R 6 is a radical selected from the group of acetyl, benzoyl, --SO2C6H5, --SO2C6H4--CH3, phenyl, which is unsubstituted or substituted by --COOM or methyl, and ##STR16## R 7 and R 8 are respectively a radical selected from the group of hydrogen, hydroxyl, and --C 2 H 4 OH; R 9 and R 10 are respectively a radical selected from the group of hydrogen, amino, hydroxyl and lower alkoxy; n is 1 or 2; m is 0 or 1; and M is an alkali metal or ammonium.

Claim 9

Dependent Claim 211 words

In an ink-jet recording method in which recording is conducted by ejecting droplets of an ink through an orifice onto a recording medium in response to a recording signal, the improvement comprising employing as the ink a composition comprising a recording agent represented by the general formula ##STR14## where R 1 is a radical selected from the group of lower alkyl, lower alkoxy, --COOM, and --SO 3 M; R 2 and R 3 are respectively a radical selected from the group of hydrogen, lower alkyl, lower alkoxy, amino, --NHCOCH 3 , --SO 3 M, and COOM; R 4 and R 5 are respectively a radical selected from the group of lower alkyl, lower alkoxy, --NHCOCH 3 , --SO 3 M, and COOM; A is ##STR15## R 6 is a radical selected from the group of acetyl, benzoyl, --SO2C6H5, --SO2C6H4--CH3, phenyl, which is unsubstituted or substituted by --COOM or methyl, and ##STR16## R 7 and R 8 are respectively a radical selected from the group of hydrogen, hydroxyl, and --C 2 H 4 OH; R 9 and R 10 are respectively a radical selected from the group of hydrogen, amino, hydroxyl and lower alkoxy; n is 1 or 2; m is 0 or 1; and M is an alkali metal or ammonium.

Claim 10

Dependent Claim 19 words

In the ink-jet recording method of claim 7, wherein the recording medium is a non-coated paper or coated paper.

Claim 11

Dependent Claim 22 words

In the ink-jet recording method of claim 7, wherein the ink is ejected by action of thermal energy given to the ink.

Claim 12

Dependent Claim 211 words

A recording unit having an ink container portion for holding an ink and a head portion for ejecting the ink in droplets, the ink comprising a recording agent represented by the general formula ##STR17## where R 1 is a radical selected from the group of lower alkyl, lower alkoxy, --COOM, and --SO 3 M; R 2 and R 3 are respectively a radical selected from the group of hydrogen, lower alkyl, lower alkoxy, amino, --NHCOCH 3 , --SO 3 M, and COOM; R 4 and R 5 are respectively a radical selected from the group of lower alkyl, lower alkoxy, --NHCOCH 3 , --SO 3 M, and COOM; A is ##STR18## R 6 is a radical selected from the group of acetyl, benzoyl, --SO 2 C 6 H 5 , --SO 2 C 6 H 4 --CH 3 , phenyl, which is unsubstituted or substituted by --COOM or methyl, and ##STR19## R 7 and R 8 are respectively a radical selected from the group of hydrogen, hydroxyl, and --C 2 H 4 OH; R 9 and R 10 are respectively a radical selected from the group of hydrogen, amino, hydroxyl and lower alkoxy; n is 1 or 2; m is 0 or 1; and M is an alkali metal or ammonium.

Claim 13

Dependent Claim 211 words

A recording unit having an ink container portion for holding an ink and a head portion for ejecting the ink in droplets, the ink comprising a recording agent represented by the general formula ##STR17## where R 1 is a radical selected from the group of lower alkyl, lower alkoxy, --COOM, and --SO 3 M; R 2 and R 3 are respectively a radical selected from the group of hydrogen, lower alkyl, lower alkoxy, amino, --NHCOCH 3 , --SO 3 M, and COOM; R 4 and R 5 are respectively a radical selected from the group of lower alkyl, lower alkoxy, --NHCOCH 3 , --SO 3 M, and COOM; A is ##STR18## R 6 is a radical selected from the group of acetyl, benzoyl, --SO 2 C 6 H 5 , --SO 2 C 6 H 4 --CH 3 , phenyl, which is unsubstituted or substituted by --COOM or methyl, and ##STR19## R 7 and R 8 are respectively a radical selected from the group of hydrogen, hydroxyl, and --C 2 H 4 OH; R 9 and R 10 are respectively a radical selected from the group of hydrogen, amino, hydroxyl and lower alkoxy; n is 1 or 2; m is 0 or 1; and M is an alkali metal or ammonium.

Claim 14

Dependent Claim 21 words

The recording unit of claim 10, wherein the head portion ejects ink droplets by action of thermal energy to the ink.

Claim 15

Dependent Claim 15 words

The recording unit of claim 10, wherein the ink container portion is formed from polyurethane.

Claim 16

Dependent Claim 201 words

An ink cartridge having an ink container portion for holding an ink, the ink comprising a recording agent represented by the general formula ##STR20## where R 1 is a radical selected from the group of lower alkyl, lower alkoxy, --COOM, and --SO 3 M; R 2 and R 3 are respectively a radical selected from the group of hydrogen, lower alkyl, lower alkoxy, amino, --NHCOCH 3 , --SO 3 M, and COOM; R 4 and R 5 are respectively a radical selected from the group of lower alkyl, lower alkoxy, --NHCOCH 3 , --SO 3 M, and COOM; A is ##STR21## R 6 is a radical selected from the group of acetyl, benzoyl, --SO 2 C 6 H 5 , --SO 2 C 6 H 4 --CH 3 , phenyl, which is unsubstituted or substituted by --COOM or methyl, and ##STR22## R 7 and R 8 are respectively a radical selected from the group of hydrogen, hydroxyl, and --C 2 H 4 OH; R 9 and R 10 are respectively a radical selected from the group of hydrogen, amino, hydroxyl and lower alkoxy; n is 1 or 2; m is 0 or 1; and M is an alkali metal or ammonium.

Claim 17

Dependent Claim 201 words

An ink cartridge having an ink container portion for holding an ink, the ink comprising a recording agent represented by the general formula ##STR20## where R 1 is a radical selected from the group of lower alkyl, lower alkoxy, --COOM, and --SO 3 M; R 2 and R 3 are respectively a radical selected from the group of hydrogen, lower alkyl, lower alkoxy, amino, --NHCOCH 3 , --SO 3 M, and COOM; R 4 and R 5 are respectively a radical selected from the group of lower alkyl, lower alkoxy, --NHCOCH 3 , --SO 3 M, and COOM; A is ##STR21## R 6 is a radical selected from the group of acetyl, benzoyl, --SO 2 C 6 H 5 , --SO 2 C 6 H 4 --CH 3 , phenyl, which is unsubstituted or substituted by --COOM or methyl, and ##STR22## R 7 and R 8 are respectively a radical selected from the group of hydrogen, hydroxyl, and --C 2 H 4 OH; R 9 and R 10 are respectively a radical selected from the group of hydrogen, amino, hydroxyl and lower alkoxy; n is 1 or 2; m is 0 or 1; and M is an alkali metal or ammonium.

Claim 18

Dependent Claim 18 words

The ink cartridge of claim 13, wherein the ink container portion has a liquid-contacting face formed from polyolefin.

Claim 19

Dependent Claim 208 words

An ink-jet recording apparatus having an ink container portion for holding an ink and a head portion for ejecting the ink in droplets, the ink comprising a recording agent represented by the general formula ##STR23## where R 1 is a radical selected from the group of lower alkyl, lower alkoxy, --COOM, and --SO 3 M; R 2 and R 3 are respectively a radical selected from the group of hydrogen, lower alkyl, lower alkoxy, amino, --NHCOCH 3 , --SO 3 M, and COOM; R 4 and R 5 are respectively a radical selected from the group of lower alkyl, lower alkoxy, --NHCOCH3, --SO3M, and COOM; A is ##STR24## R 6 is a radical selected from the group of acetyl, benzoyl, --SO 2 C 6 H 5 , --SO 2 C 6 H 4 --CH 3 , phenyl, which is unsubstituted or substituted by --COOM or methyl, and ##STR25## R 7 and R 8 are respectively a radical selected from the group of hydrogen, hydroxyl, and --C 2 H 4 OH; R 9 and R 10 are respectively a radical selected from the group of hydrogen, amino, hydroxyl and lower alkoxy; n is 1 or 2; m is 0 or 1; and M is an alkali metal or ammonium.

Claim 20

Dependent Claim 208 words

An ink-jet recording apparatus having an ink container portion for holding an ink and a head portion for ejecting the ink in droplets, the ink comprising a recording agent represented by the general formula ##STR23## where R 1 is a radical selected from the group of lower alkyl, lower alkoxy, --COOM, and --SO 3 M; R 2 and R 3 are respectively a radical selected from the group of hydrogen, lower alkyl, lower alkoxy, amino, --NHCOCH 3 , --SO 3 M, and COOM; R 4 and R 5 are respectively a radical selected from the group of lower alkyl, lower alkoxy, --NHCOCH3, --SO3M, and COOM; A is ##STR24## R 6 is a radical selected from the group of acetyl, benzoyl, --SO 2 C 6 H 5 , --SO 2 C 6 H 4 --CH 3 , phenyl, which is unsubstituted or substituted by --COOM or methyl, and ##STR25## R 7 and R 8 are respectively a radical selected from the group of hydrogen, hydroxyl, and --C 2 H 4 OH; R 9 and R 10 are respectively a radical selected from the group of hydrogen, amino, hydroxyl and lower alkoxy; n is 1 or 2; m is 0 or 1; and M is an alkali metal or ammonium.

Claim 21

Dependent Claim 21 words

The ink-jet recording apparatus of claim 15, wherein the head portion ejects ink droplets by giving thermal energy to the ink.

Claim 22

Dependent Claim 15 words

The ink-jet recording apparatus claim 15, wherein the ink container portion is formed from polyurethane.

Claim 23

Dependent Claim 230 words

An ink-jet recording apparatus having a head portion for ejecting an ink in droplets, an inkcartridge having an ink container portion for holding the ink, and an ink-supplying portion for supplying the ink from the ink cartridge to the recording head, the ink comprising a recording agent represented by the general formula ##STR26## where R 1 is a radical selected from the group of lower alkyl, lower alkoxy, --COOM, and --SO 3 M; R 2 and R 3 are respectively a radical selected from the group of hydrogen, lower alkyl, lower alkoxy, amino, --NHCOCH 3 , --SO 3 M, and COOM; R 4 and R 5 are respectively a radical selected from the group of lower alkyl, lower alkoxy, --NHCOCH 3 , --SO 3 M, and COOM; A is ##STR27## R 6 is a radical selected from the group of acetyl, benzoyl, --SO 2 C 6 H 5 , --SO 2 C 6 H 4 --CH 3 , phenyl, which is unsubstituted or substituted by --COOM or methyl, and ##STR28## R 7 and R 8 are respectively a radical selected from the group of hydrogen, hydroxyl, and --C 2 H 4 OH; R 9 and R 10 are respectively a radical selected from the group of hydrogen, amino, hydroxyl and lower alkoxy; n is 1 or 2; m is 0 or 1; and M is an alkali metal or ammonium.

Claim 24

Dependent Claim 230 words

An ink-jet recording apparatus having a head portion for ejecting an ink in droplets, an inkcartridge having an ink container portion for holding the ink, and an ink-supplying portion for supplying the ink from the ink cartridge to the recording head, the ink comprising a recording agent represented by the general formula ##STR26## where R 1 is a radical selected from the group of lower alkyl, lower alkoxy, --COOM, and --SO 3 M; R 2 and R 3 are respectively a radical selected from the group of hydrogen, lower alkyl, lower alkoxy, amino, --NHCOCH 3 , --SO 3 M, and COOM; R 4 and R 5 are respectively a radical selected from the group of lower alkyl, lower alkoxy, --NHCOCH 3 , --SO 3 M, and COOM; A is ##STR27## R 6 is a radical selected from the group of acetyl, benzoyl, --SO 2 C 6 H 5 , --SO 2 C 6 H 4 --CH 3 , phenyl, which is unsubstituted or substituted by --COOM or methyl, and ##STR28## R 7 and R 8 are respectively a radical selected from the group of hydrogen, hydroxyl, and --C 2 H 4 OH; R 9 and R 10 are respectively a radical selected from the group of hydrogen, amino, hydroxyl and lower alkoxy; n is 1 or 2; m is 0 or 1; and M is an alkali metal or ammonium.

Claim 25

Dependent Claim 22 words

The ink-jet recording apparatus of claim 18, wherein the recording head ejects the ink droplets by giving thermal energy to the ink.

Claim 26

Dependent Claim 19 words

The ink-jet recording apparatus of claim 18, wherein the ink container portion has a liquid-contacting face formed from polyolefin.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1996-01-12	1996-07-13	1997-01-12	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2000-01-12	2000-07-13	2001-01-12	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2004-01-12	2004-07-13	2005-01-12	$7700.00	Window Closed / Lapsed

Ink, and ink-jet recording method and apparatus employing the ink

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