US5081470A
Expired / Lapsed
US
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Recording medium and process for recording using the same
Assignee: Canon Inc
•
Filing: 1990-06-25
•
Granted: 1992-01-14
•
Expires: 2010-06-25
Abstract
Abstract A recording medium which comprises a support and an ink receiving layer containing pigments provided on the support, the pigment having a BET specific surface area of 30 to 120 m 2 /g and an iodine adsorbability per unit surface area of 1.5 mg/m 2 or more as the main pigment component.
Inventors
- 👤 Yutaka Kurabayashi
- 👤 Mamoru Sakaki
- 👤 Hiroshi Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:22
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/50; B41M5/52; B41M5/5218; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/258; Y10T428/27; Y10T428/273
Claims Analysis
Total Claims: 44
Claim 1
Independent Claim
72 words
A recording medium, which comprises a support and an ink receiving layer containing pigments provided on the support, one of said pigments having a BET specific surface area of 30 to 120 m 2 /g and an iodine adsorbability per unit surface area of 1.5 mg/m 2 or more and being the main pigment component, wherein the total amount of pigments in the ink-receiving layer is at least 0.2 g/m 2 .
Claim 2
Dependent Claim
72 words
A recording medium, which comprises a support and an ink receiving layer containing pigments provided on the support, one of said pigments having a BET specific surface area of 30 to 120 m 2 /g and an iodine adsorbability per unit surface area of 1.5 mg/m 2 or more and being the main pigment component, wherein the total amount of pigments in the ink-receiving layer is at least 0.2 g/m 2 .
Claim 3
Dependent Claim
34 words
The recording medium according to claim 1, wherein said main pigment component is contained in an amount of at least 60% by weight on the basis of total pigments of said ink receiving layer.
Claim 4
Dependent Claim
33 words
The recording medium according to claim 1, wherein said main pigment component is in an amount of at least 80% by weight on the basis of total pigments of said ink receiving layer.
Claim 5
Dependent Claim
16 words
The recording medium according to claim 1, wherein said main pigment component is a magnesium compound.
Claim 6
Dependent Claim
39 words
The recording medium according to claim 4, wherein said magnesium compound is at least one selected from the group consisting of magnesium oxide, magnesium hydroxide, magnesium silicate, magnesium oxalate, magnesium calcium carbonate, basic magnesium carbonate and double salts thereof.
Claim 7
Dependent Claim
26 words
The recording medium according to claim 1, wherein a primary particle size of said main pigment component is in a range of 0.01 to 5 μm.
Claim 8
Dependent Claim
29 words
The recording medium according to claim 1, wherein the total amount of pigments in said ink receiving layer is in a range of 0.2 to 20 g/m 2 .
Claim 9
Dependent Claim
96 words
A recording medium, which comprises a liquid-adsorbable sheet and an ink receiving layer containing pigments provided on the surface of said liquid-adsorbable sheet, one of said pigments having a BET specific surface area of 30 to 120 m 2 /g and an iodine adsorbability per unit surface area of 1.5 mg/m 2 or more and being the main pigment component, wherein the total amount of pigments in the ink-receiving layer is at least 0.2 g/m 2 , and wherein the Stockigt sizing degree throughout said recording medium is in a range of 0 to 15 seconds.
Claim 10
Dependent Claim
96 words
A recording medium, which comprises a liquid-adsorbable sheet and an ink receiving layer containing pigments provided on the surface of said liquid-adsorbable sheet, one of said pigments having a BET specific surface area of 30 to 120 m 2 /g and an iodine adsorbability per unit surface area of 1.5 mg/m 2 or more and being the main pigment component, wherein the total amount of pigments in the ink-receiving layer is at least 0.2 g/m 2 , and wherein the Stockigt sizing degree throughout said recording medium is in a range of 0 to 15 seconds.
Claim 11
Dependent Claim
33 words
The recording medium according to claim 8, wherein said main pigment component is in an amount of at least 60% by weight on the basis of total pigments of said ink receiving layer.
Claim 12
Dependent Claim
33 words
The recording medium according to claim 8, wherein said main pigment component is in a range of at least 80% by weight on the basis of total pigments of said ink receiving layer.
Claim 13
Dependent Claim
25 words
The recording medium according to claim 8, wherein said Stockigt sizing degree of said recording medium is in a range of 0 to 10 seconds.
Claim 14
Dependent Claim
16 words
The recording medium according to claim 8, wherein said main pigment component is a magnesium compound.
Claim 15
Dependent Claim
39 words
The recording medium according to claim 12, wherein said magnesium compound is at least one selected from the group consisting of magnesium oxide, magnesium hydroxide, magnesium silicate, magnesium oxalate, magnesium calcium carbonate, basic magnesium carbonate and double salts thereof.
Claim 16
Dependent Claim
26 words
The recording medium according to claim 8, wherein a primary particle size of said main pigment component is in a range of 0.01 to 5 μm.
Claim 17
Dependent Claim
29 words
The recording medium according to claim 8, wherein the total amount of pigments in said ink receiving layer is in a range of 0.2 to 20 g/m 2 .
Claim 18
Dependent Claim
73 words
A recording medium, which comprises a support and an ink receiving layer containing pigments, said pigments comprising a pigment (A) having a BET specific surface area of 30 to 120 m 2 /g and an iodine adsorbability per unit surface area of 1.5 mg/m 2 or more as the main pigment component, and another pigment (B), wherein the total amount of pigments in the ink-receiving layer is at least 0.2 g/m 2 .
Claim 19
Dependent Claim
73 words
A recording medium, which comprises a support and an ink receiving layer containing pigments, said pigments comprising a pigment (A) having a BET specific surface area of 30 to 120 m 2 /g and an iodine adsorbability per unit surface area of 1.5 mg/m 2 or more as the main pigment component, and another pigment (B), wherein the total amount of pigments in the ink-receiving layer is at least 0.2 g/m 2 .
Claim 20
Dependent Claim
32 words
The recording medium according to claim 16, wherein the pigment (A) is in an amount of at least 60% by weight on the basis of total pigments of said ink receiving layer.
Claim 21
Dependent Claim
32 words
The recording medium according to claim 16, wherein said pigment (A) is in an amount of at least 80% by weight on the basis of total pigments of said ink receiving layer.
Claim 22
Dependent Claim
15 words
The recording medium according to claim 16, wherein said pigment (A) is a magnesium compound.
Claim 23
Dependent Claim
39 words
The recording medium according to claim 19, wherein said magnesium compound is at least one selected from the group consisting of magnesium oxide, magnesium hydroxide, magnesium silicate, magnesium oxalate, magnesium calcium carbonate, basic magnesium carbonate and double salts thereof.
Claim 24
Dependent Claim
25 words
The recording medium according to claim 16, wherein a primary particle size of said pigment (A) is in a range of 0.01 to 5 μm.
Claim 25
Dependent Claim
31 words
The recording medium according to claim 16, wherein said pigment (B) is at least one selected from silica, alumina, aluminum silicate, calcium silicate, clay, talc, kaolin, diatomaceous earth and urea resin.
Claim 26
Dependent Claim
29 words
The recording medium according to claim 16, wherein the total amount of pigments in said ink receiving layer is in a range of 0.2 to 20 g/m 2 .
Claim 27
Dependent Claim
101 words
A recording medium, which comprises a liquid-adsorbable sheet and an ink receiving layer containing pigments provided on the surface of the liquid-adsorbable sheet, said pigments comprising a pigment (A) having a BET specific surface area of 30 to 120 m 2 /g and an iodine adsorbability per unit surface area of 1.5 mg/m 2 or more as the main pigment component, and another pigment (B), wherein the total amount of pigments in the ink-receiving layer is at least 0.2 g/m 2 , and wherein the Stockigt sizing degree throughout said recording medium is in a range of 0 to 15 seconds.
Claim 28
Dependent Claim
101 words
A recording medium, which comprises a liquid-adsorbable sheet and an ink receiving layer containing pigments provided on the surface of the liquid-adsorbable sheet, said pigments comprising a pigment (A) having a BET specific surface area of 30 to 120 m 2 /g and an iodine adsorbability per unit surface area of 1.5 mg/m 2 or more as the main pigment component, and another pigment (B), wherein the total amount of pigments in the ink-receiving layer is at least 0.2 g/m 2 , and wherein the Stockigt sizing degree throughout said recording medium is in a range of 0 to 15 seconds.
Claim 29
Dependent Claim
32 words
The recording medium according to claim 24, wherein said pigment (A) is in an amount of at least 60% by weight on the basis of total pigments of said ink receiving layer.
Claim 30
Dependent Claim
32 words
The recording medium according to claim 24, wherein said pigments (A) is in an amount of at least 80% by weight on the basis of total pigments of said ink receiving layer.
Claim 31
Dependent Claim
15 words
The recording medium according to claim 24, wherein said pigment (A) is a magnesium compound.
Claim 32
Dependent Claim
39 words
The recording medium according to claim 27, wherein said magnesium compound is at least one selected from the group consisting of magnesium oxide, magnesium hydroxide, magnesium silicate, magnesium oxalate, magnesium calcium carbonate, basic magnesium carbonate and double salts thereof.
Claim 33
Dependent Claim
25 words
The recording medium according to claim 24, wherein a primary particle size of said pigment (A) is in a range of 0.01 to 5 μm.
Claim 34
Dependent Claim
31 words
The recording medium according to claim 24, wherein said pigment (B) is at least one selected from silica, alumina, aluminum silicate, calcium silicate, clay, talc, kaolin, diatomaceous earth, and urea resin.
Claim 35
Dependent Claim
29 words
The recording medium according to claim 24, wherein the total amount of pigments in said ink receiving layer is in a range of 0.2 to 20 g/m 2 .
Claim 36
Dependent Claim
88 words
A process for recording, which comprises the step of imparting liquid droplets of a recording solution containing a water-soluble dye to a recording medium, the recording medium having an ink receiving layer containing pigments, one of said pigments having a BET specific surface area of 30 to 120 m 2 /g and an iodine adsorbability per unit surface area of 1.5 mg/m 2 or more and being the main pigment component, wherein the total amount of pigments in the ink-receiving layer is at least 0.2 g/m 2 .
Claim 37
Dependent Claim
88 words
A process for recording, which comprises the step of imparting liquid droplets of a recording solution containing a water-soluble dye to a recording medium, the recording medium having an ink receiving layer containing pigments, one of said pigments having a BET specific surface area of 30 to 120 m 2 /g and an iodine adsorbability per unit surface area of 1.5 mg/m 2 or more and being the main pigment component, wherein the total amount of pigments in the ink-receiving layer is at least 0.2 g/m 2 .
Claim 38
Dependent Claim
18 words
The process according to claim 32, wherein said water-soluble dye is a direct dye or an acid dye.
Claim 39
Dependent Claim
16 words
The process according to claim 32, wherein said recording is carried out by ink jet recording.
Claim 40
Dependent Claim
32 words
The process according to claim 32, wherein said main pigment component is in a range of at least 60% by weight on the basis of total pigments of said ink receiving layer.
Claim 41
Dependent Claim
31 words
The process according to claim 32, wherein said main pigment is in a range of at least 80% by weight on the basis of total pigments of said ink receiving layer.
Claim 42
Dependent Claim
14 words
The process according to claim 32, wherein the main pigment is a magnesium compound.
Claim 43
Dependent Claim
39 words
The recording medium according to claim 37, wherein said magnesium compound is at least one selected from the group consisting of magnesium oxide, magnesium hydroxide, magnesium silicate, magnesium oxalate, magnesium calcium carbonate, basic magnesium carbonate and double salts thereof.
Claim 44
Dependent Claim
28 words
The process according to claim 32, wherein the total amount of pigments in said ink receiving layer is in a range of 0.2 to 20 g/m 2 .
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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) | 1995-01-13 | 1995-07-15 | 1996-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-13 | 1999-07-15 | 2000-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-13 | 2003-07-15 | 2004-01-14 | $7700.00 | Window Closed / Lapsed |