US7322687B2
Expired / Lapsed
US
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Inkjet recording method and inkjet recording apparatus
Assignee: Konica Minolta Inc
•
Filing: 2004-12-06
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Granted: 2008-01-29
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Expires: 2024-12-06
Abstract
Abstract An inkjet recording method includes: forming a color image with respective inks on a recording medium by while scanning a recording head multiple times on a same recording area thereof, forming a thinned-out image according to an thinning-out pattern without regularity in each scanning, the recording head having a plurality of nozzle sections for jetting inks, wherein a nozzle pitch thereof is from 10 to 50 μm, the respective inks contains pigments, at least one organic solvent with high boiling point and water, a surface tension of the respective inks is from 30 to 50 mN/m, the yellow ink contains C.I. Pigment Yellow 128 as pigment, a transferred amount at 0.04 sec of time by Bristow method is 10 ml/m 2 or more, and the recording medium has a micro-porous layer containing inorganic fine particles with a mean particle size of 15 to 100 nm and a hydrophilic binder.
Inventors
- 👤 Atsushi Tomotake
- 👤 Takahiro Matsuzawa
- 👤 Kenzo Nakazawa
- 👤 Miyako Sugihara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:46
CPC Classifications
B; B41; B41J; B41J2/00; B41J2/005; B41J2/01; B41J2/135; B41J2/14; B41J2/1433; B41J2/21; B41J2/2107; B41J2/2132; B41J29/00; B41J29/38; B41M; B41M5/00; C; C09; C09D; C09D11/00; C09D11/30; C09D11/40; B41J2202/00; B41J2202/01; B41J2202/11
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
205 words
An inkjet recording method comprising the step of: forming a color image with respective inks of at least cyan, magenta, yellow and black on a recording medium by while scanning a recording head multiple times on a same recording area of the recording medium, forming a thinned-out image according to a thinning-out pattern without regularity in each scanning, the recording head having a plurality of nozzle sections for jetting inks, wherein a nozzle pitch of the recording head is from 10 to 50 μm, the respective inks contain pigments, at least one organic solvent with high boiling point and water, a surface tension of the respective inks is from 30 to 50 mN/m, the yellow ink contains C.I. Pigment Yellow 128 as pigment, in the recording medium, a transferred amount at 0.04 sec of time by Bristow method is 10 ml/m 2 or more, and the recording medium has a micro-porous layer containing inorganic fine particles with a mean particle size of 15 to 100 nm and a hydrophilic binder, a printing acceptable rate of the thinning-out pattern is from 15 to 35%, and dot sizes formed by the ink jetted from the recording head are from 10 to 50 μm on the recording medium.
Claim 2
Dependent Claim
205 words
An inkjet recording method comprising the step of: forming a color image with respective inks of at least cyan, magenta, yellow and black on a recording medium by while scanning a recording head multiple times on a same recording area of the recording medium, forming a thinned-out image according to a thinning-out pattern without regularity in each scanning, the recording head having a plurality of nozzle sections for jetting inks, wherein a nozzle pitch of the recording head is from 10 to 50 μm, the respective inks contain pigments, at least one organic solvent with high boiling point and water, a surface tension of the respective inks is from 30 to 50 mN/m, the yellow ink contains C.I. Pigment Yellow 128 as pigment, in the recording medium, a transferred amount at 0.04 sec of time by Bristow method is 10 ml/m 2 or more, and the recording medium has a micro-porous layer containing inorganic fine particles with a mean particle size of 15 to 100 nm and a hydrophilic binder, a printing acceptable rate of the thinning-out pattern is from 15 to 35%, and dot sizes formed by the ink jetted from the recording head are from 10 to 50 μm on the recording medium.
Claim 3
Dependent Claim
20 words
The method of claim 1 , wherein in the recording medium, the micro-porous layer is provided on an absorbable support.
Claim 4
Dependent Claim
17 words
The method of claim 1 , wherein the hydrophilic binder is polyvinyl alcohol or a derivative thereof.
Claim 5
Dependent Claim
12 words
The method of claim 1 , wherein the hydrophilic binder is hardened.
Claim 6
Dependent Claim
23 words
The method of claim 1 , wherein a void rate of the micro-porous layer in the recording medium is from 30 to 70%.
Claim 7
Dependent Claim
15 words
The method of claim 1 , wherein the inorganic fine particle contains silica or alumina.
Claim 8
Dependent Claim
22 words
The method of claim 1 , wherein a mean particle size of the inorganic fine particles is from 20 to 80 nm.
Claim 9
Dependent Claim
36 words
The method of claim 1 , wherein the magenta ink contains C.I. Pigment Red 122 as pigment, the cyan ink contains C.I. Pigment Blue 15:3 as pigment, and the black ink contains carbon black as pigment.
Claim 10
Dependent Claim
231 words
An inkjet recording apparatus for forming a color image on a recording medium by jetting respective inks of at least cyan, magenta, yellow and black on a recording medium comprising: a recording head in which a plurality of nozzle sections for jetting the inks are arrayed at a pitch of 10 to 50 μm; a scanning section to make the recording head scan multiple times on a same recording area of the recording medium; and a control section to jet the inks from the plurality of nozzle sections such that a thinned-out image according to the thinning-out pattern without regularity in each scanning is formed on the recording medium, wherein the respective inks contain pigments, at least one organic solvent with high boiling point and water, a surface tension of the respective inks is from 30 to 50 mN/m, the yellow ink contains C.I. Pigment Yellow 128 as pigment, in the recording medium, a transferred amount at 0.04 sec of time by Bristow method is 10 ml/m 2 or more, and the recording medium has a micro-porous layer containing inorganic fine particles with a mean particle size of 15 to 100 nm and a hydrophilic binder, a printing acceptable rate of the thinning-out pattern is from 15 to 35%, and dot sizes formed by the ink jetted from the recording head are from 10 to 50 μm on the recording medium.
Claim 11
Dependent Claim
231 words
An inkjet recording apparatus for forming a color image on a recording medium by jetting respective inks of at least cyan, magenta, yellow and black on a recording medium comprising: a recording head in which a plurality of nozzle sections for jetting the inks are arrayed at a pitch of 10 to 50 μm; a scanning section to make the recording head scan multiple times on a same recording area of the recording medium; and a control section to jet the inks from the plurality of nozzle sections such that a thinned-out image according to the thinning-out pattern without regularity in each scanning is formed on the recording medium, wherein the respective inks contain pigments, at least one organic solvent with high boiling point and water, a surface tension of the respective inks is from 30 to 50 mN/m, the yellow ink contains C.I. Pigment Yellow 128 as pigment, in the recording medium, a transferred amount at 0.04 sec of time by Bristow method is 10 ml/m 2 or more, and the recording medium has a micro-porous layer containing inorganic fine particles with a mean particle size of 15 to 100 nm and a hydrophilic binder, a printing acceptable rate of the thinning-out pattern is from 15 to 35%, and dot sizes formed by the ink jetted from the recording head are from 10 to 50 μm on the recording medium.
Claim 12
Dependent Claim
20 words
The apparatus of claim 9 , wherein in the recording medium, the micro-porous layer is provided on an absorbable support.
Claim 13
Dependent Claim
17 words
The apparatus of claim 9 , wherein the hydrophilic binder is polyvinyl alcohol or a derivative thereof.
Claim 14
Dependent Claim
12 words
The apparatus of claim 9 , wherein the hydrophilic binder is hardened.
Claim 15
Dependent Claim
23 words
The apparatus of claim 9 , wherein a void rate of the micro-porous layer in the recording medium is from 30 to 70%.
Claim 16
Dependent Claim
15 words
The apparatus of claim 9 , wherein the inorganic fine particle contains silica or alumina.
Claim 17
Dependent Claim
22 words
The apparatus of claim 9 , wherein a mean particle size of the inorganic fine particles is from 20 to 80 nm.
Claim 18
Dependent Claim
36 words
The apparatus of claim 9 , wherein the magenta ink contains C.I. Pigment Red 122 as pigment, the cyan ink contains C.I. Pigment Blue 15:3 as pigment, and the black ink contains carbon black as pigment.
Claim 19
Dependent Claim
231 words
An inkjet recording apparatus for forming a color image on a recording medium by jetting respective inks of at least cyan, magenta, yellow and black on a recording medium comprising: a recording means in which a plurality of nozzle sections for jetting the inks are arrayed at a pitch of 10 to 50 μm; a scanning means for making the recording means scan multiple times on a same recording area of the recording medium; and a control means for jetting the inks from the plurality of nozzle sections such that a thinned-out image according to the thinning-out pattern without regularity in each scanning is formed on the recording medium, wherein the respective inks contain pigments, at least one organic solvent with high boiling point and water, a surface tension of the respective inks is from 30 to 50 mN/m, the yellow ink contains C.I. Pigment Yellow 128 as pigment, in the recording medium, a transferred amount at 0.04 sec of time by Bristow method is 10 ml/m 2 or more, and the recording medium has a micro-porous layer containing inorganic fine particles with a mean particle size of 15 to 100 nm and a hydrophilic binder, a printing acceptable rate of the thinning-out pattern is from 15 to 35%, and dot sizes formed by the ink jetted from the recording head are from 10 to 50 μm on the recording medium.
Claim 20
Dependent Claim
231 words
An inkjet recording apparatus for forming a color image on a recording medium by jetting respective inks of at least cyan, magenta, yellow and black on a recording medium comprising: a recording means in which a plurality of nozzle sections for jetting the inks are arrayed at a pitch of 10 to 50 μm; a scanning means for making the recording means scan multiple times on a same recording area of the recording medium; and a control means for jetting the inks from the plurality of nozzle sections such that a thinned-out image according to the thinning-out pattern without regularity in each scanning is formed on the recording medium, wherein the respective inks contain pigments, at least one organic solvent with high boiling point and water, a surface tension of the respective inks is from 30 to 50 mN/m, the yellow ink contains C.I. Pigment Yellow 128 as pigment, in the recording medium, a transferred amount at 0.04 sec of time by Bristow method is 10 ml/m 2 or more, and the recording medium has a micro-porous layer containing inorganic fine particles with a mean particle size of 15 to 100 nm and a hydrophilic binder, a printing acceptable rate of the thinning-out pattern is from 15 to 35%, and dot sizes formed by the ink jetted from the recording head are from 10 to 50 μm on the recording medium.
Claim 21
Dependent Claim
20 words
The apparatus of claim 17 , wherein in the recording medium, the micro-porous layer is provided on an absorbable support.
Claim 22
Dependent Claim
17 words
The apparatus of claim 17 , wherein the hydrophilic binder is polyvinyl alcohol or a derivative thereof.
Claim 23
Dependent Claim
12 words
The apparatus of claim 17 , wherein the hydrophilic binder is hardened.
Claim 24
Dependent Claim
23 words
The apparatus of claim 17 , wherein a void rate of the micro-porous layer in the recording medium is from 30 to 70%.
Claim 25
Dependent Claim
15 words
The apparatus of claim 17 , wherein the inorganic fine particle contains silica or alumina.
Claim 26
Dependent Claim
22 words
The apparatus of claim 17 , wherein a mean particle size of the inorganic fine particles is from 20 to 80 nm.
Claim 27
Dependent Claim
36 words
The apparatus of claim 17 , wherein the magenta ink contains C.I. Pigment Red 122 as pigment, the cyan ink contains C.I. Pigment Blue 15:3 as pigment, and the black ink contains carbon black as pigment.
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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) | 2011-01-28 | 2011-07-30 | 2012-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2015-01-28 | 2015-07-30 | 2016-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2019-01-28 | 2019-07-30 | 2020-01-29 | $7700.00 | Window Closed / Lapsed |