Patent US6435658B1 successfully refreshed from Google Patents.
US6435658B1
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Ink jet recording method
Assignee: Canon Inc
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Filing: 2001-08-31
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Granted: 2002-08-20
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Expires: 2021-08-31
Abstract
Abstract A reactive color ink that contains a metal ion and exhibits mutual reactivity with a blank ink is applied in an area including a print area, which has been formed by applying the blank ink on a recording medium, and an area surrounding the print area, a distance between an edge of the print area and an outer edge of the surrounding area being up to four pixels. This ink application is performed so that a value at least equal to 0.01 is obtained from a calculation where a metal ion concentration % by weight in the reactive color ink applied in the area including the print area and the surrounding area is multiplied by a print duty % of the reactive color ink applied in the area including the print area and the surrounding area.
Inventors
- 👤 Masao Kato
- 👤 Nobuyuki Matsumoto
- 👤 Fumihiro Gotoh
- 👤 Akitoshi Yamada
- 👤 Tetsuya Suwa
- 👤 Yoichi Takada
- 👤 Noriyasu Asaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:58
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/30; C09D11/40; B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/21; B41J2/2107
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
180 words
An ink jet recording method that uses an ink set including a black ink and a plurality of color inks, at least one of the plurality of color inks containing a metal ion and being a reactive color ink that exhibits mutual reactivity with the black ink, each color ink other than the at least one reactive color ink being a non-reactive color ink that exhibits non-reactivity with the black ink, the ink jet recording method comprising: a step for applying the at least one reactive color ink in an area in which the metal ion becomes effective at promoting a reaction between the black ink and the at least one reactive color ink, wherein the at least one reactive color ink is applied in the area so that a value at least equal to 0.01 is obtained from a calculation where the metal ion concentration percentage by weight in the at least one reactive color ink applied in the area is multiplied by a print duty percentage of the at least one reactive color ink applied in the area.
Claim 2
Dependent Claim
180 words
An ink jet recording method that uses an ink set including a black ink and a plurality of color inks, at least one of the plurality of color inks containing a metal ion and being a reactive color ink that exhibits mutual reactivity with the black ink, each color ink other than the at least one reactive color ink being a non-reactive color ink that exhibits non-reactivity with the black ink, the ink jet recording method comprising: a step for applying the at least one reactive color ink in an area in which the metal ion becomes effective at promoting a reaction between the black ink and the at least one reactive color ink, wherein the at least one reactive color ink is applied in the area so that a value at least equal to 0.01 is obtained from a calculation where the metal ion concentration percentage by weight in the at least one reactive color ink applied in the area is multiplied by a print duty percentage of the at least one reactive color ink applied in the area.
Claim 3
Dependent Claim
25 words
An ink jet recording method according to claim 1 , wherein the black ink contains salt land uses a black pigment as a coloring material.
Claim 4
Dependent Claim
47 words
An ink jet recording method according to claim 1 , wherein a total application amount of the at least one reactive color ink applied in the area is at least equal to 50% of a total application amount of each non-reactive color ink applied in the area.
Claim 5
Dependent Claim
32 words
An ink jet recording method according to claim 1 , wherein the print duty of the at least one reactive color ink applied in the area is at least equal to 10%.
Claim 6
Dependent Claim
51 words
An ink jet recording method according to claim 1 , wherein the area includes a print area formed with the black ink and an area surrounding the print area, a distance between an edge of the print area and an outer edge of the surrounding area being up to four pixels.
Claim 7
Dependent Claim
58 words
An ink jet recording method according to claim 1 , wherein the metal ion is at least one polyvalent metal cation selected from a group consisting of Mg 2+ , Ca 2+ , Cu 2+ , Co 2+ , Ni 2+ , Fe 2+ , La 3+ , Nd 3+ , Y 3+ , and Al 3+ .
Claim 8
Dependent Claim
41 words
An ink jet recording method according to claim 1 , wherein each reactive color ink contains metal salt whose amount is within a range of from 0.1 to 15% by weight based on a total weight of the reactive color ink.
Claim 9
Dependent Claim
203 words
An ink jet recording method that uses an ink set including a black ink and a plurality of color inks, at least one of the plurality of color inks containing a metal ion and being a reactive color ink that exhibits mutual reactivity with the black ink, each color ink other than the at least one reactive color ink being a non-reactive color ink that exhibits non-reactivity with the black ink, the ink jet recording method comprising: a step for applying the at least one reactive color ink in an area in which the metal ion becomes effective at promoting a reaction between the black ink and the at least one reactive color ink, wherein an application amount per unit area of the metal ion applied in the area is at least equal to 0.1 ng/mm**2, and the at least one reactive color ink is applied in the area so that a value at least equal to 0.01 is obtained from a calculation where the metal ion concentration in percent by weight in the at least one reactive color ink applied in the area is multiplied by a print duty percentage of the at least one reactive color ink applied in the area.
Claim 10
Dependent Claim
203 words
An ink jet recording method that uses an ink set including a black ink and a plurality of color inks, at least one of the plurality of color inks containing a metal ion and being a reactive color ink that exhibits mutual reactivity with the black ink, each color ink other than the at least one reactive color ink being a non-reactive color ink that exhibits non-reactivity with the black ink, the ink jet recording method comprising: a step for applying the at least one reactive color ink in an area in which the metal ion becomes effective at promoting a reaction between the black ink and the at least one reactive color ink, wherein an application amount per unit area of the metal ion applied in the area is at least equal to 0.1 ng/mm**2, and the at least one reactive color ink is applied in the area so that a value at least equal to 0.01 is obtained from a calculation where the metal ion concentration in percent by weight in the at least one reactive color ink applied in the area is multiplied by a print duty percentage of the at least one reactive color ink applied in the area.
Claim 11
Dependent Claim
25 words
An ink jet recording method according to claim 8 , wherein the black ink contains salt and uses a black pigment as a coloring material.
Claim 12
Dependent Claim
47 words
An ink jet recording method according to claim 8 , wherein a total application amount of the at least one reactive color ink applied in the area is at least equal to 50% of a total application amount of each non-reactive color ink applied to the area.
Claim 13
Dependent Claim
32 words
An ink jet recording method according to claim 8 , wherein the print duty of the at least one reactive color ink applied in the area is at least equal to 10%.
Claim 14
Dependent Claim
51 words
An ink jet recording method according to claim 8 , wherein the area includes a print area formed with the black ink and an area surrounding the print area, a distance between an edge of the print area and an outer edge of the surrounding area being up to four pixels.
Claim 15
Dependent Claim
58 words
An ink jet recording method according to claim 8 , wherein the metal ion is at least one polyvalent metal cation selected from a group consisting of Mg 2+ , Ca 2+ , Cu 2+ , Co 2+ , Ni 2+ , Fe 2+ , La 3+ , Nd 3+ , Y 3+ , and Al 3+ .
Claim 16
Dependent Claim
41 words
An ink jet recording method according to claim 8 , wherein each reactive color ink contains metal salt whose amount is within a range of from 0.1 to 15% by weight based on a total weight of the reactive color ink.
Claim 17
Dependent Claim
192 words
An ink jet recording method that uses an ink set including a black ink and a plurality of color inks, at least one of the plurality of color inks being a reactive color ink that exhibits mutual reactivity with the black ink, each color ink other than the at least one reactive color ink being a non-reactive color ink that exhibits non-reactivity with the black ink, wherein the plurality of color inks include specific color inks that have a relation where overlaying of the specific color inks produces a black color, the specific color inks include at least one of the at least one reactive color ink and are applied in an area including at least a print area formed with the black ink, and the at least one reactive color ink is applied in the area so that a value of at least equal to 0.01 is obtained from a calculation where the metal ion concentration in percent by weight in the at least one reactive color ink applied in the area is multiplied by a print duty percentage of the at least one reactive color ink applied in the area.
Claim 18
Dependent Claim
192 words
An ink jet recording method that uses an ink set including a black ink and a plurality of color inks, at least one of the plurality of color inks being a reactive color ink that exhibits mutual reactivity with the black ink, each color ink other than the at least one reactive color ink being a non-reactive color ink that exhibits non-reactivity with the black ink, wherein the plurality of color inks include specific color inks that have a relation where overlaying of the specific color inks produces a black color, the specific color inks include at least one of the at least one reactive color ink and are applied in an area including at least a print area formed with the black ink, and the at least one reactive color ink is applied in the area so that a value of at least equal to 0.01 is obtained from a calculation where the metal ion concentration in percent by weight in the at least one reactive color ink applied in the area is multiplied by a print duty percentage of the at least one reactive color ink applied in the area.
Claim 19
Dependent Claim
26 words
An ink jet recording method according to claim 15 , wherein the specific color inks are a yellow ink, a cyan ink, and a magenta ink.
Claim 20
Dependent Claim
22 words
An ink jet recording method according to claim 16 , wherein the at least one reactive color ink is the cyan ink.
Claim 21
Dependent Claim
23 words
An ink jet recording method according to claim 15 , wherein the specific color inks are a cyan ink and a red ink.
Claim 22
Dependent Claim
51 words
An ink jet recording method according to claim 15 , wherein the area includes the print area formed with the black ink and an area surrounding the print area, a distance between an edge of the print area and an outer edge of the surrounding area being up to four pixels.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2005-08-19 | 2006-02-18 | 2006-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2009-08-19 | 2010-02-18 | 2010-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2013-08-19 | 2014-02-18 | 2014-08-20 | $7700.00 | Window Closed / Lapsed |