EP0965460A2
Expired / Lapsed
EP
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Recording medium, image forming method utilizing the same, method for producing the same, alumina dispersion and method for producing the same
Assignee: Canon Inc
•
Filing: 1999-06-17
•
Granted: —
•
Expires: 2019-06-17
Abstract
Abstract Provided is a recording medium provided with an ink receiving layer on a substrate, wherein said ink receiving layer comprises an alumina hydrate having a boehmite structure and a non-coupling zirconium compound.
Inventors
- 👤 Hiroshi Tomioka
- 👤 Tsuyoshi Santo
- 👤 Yuji Kondo
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 09:31
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/50; B41M5/52; B41M5/5218; C; C09; C09D; C09D129/00; C09D129/02; C09D129/04; C09D131/00; C09D131/02; C09D131/04; C09D139/00; C09D139/04; C09D139/06; B41M5/5227
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
30 words
A recording medium provided with an ink
receiving layer on a substrate, wherein said ink
receiving layer comprises an alumina hydrate having a
boehmite structure and a non-coupling zirconium
compound.
Claim 2
Dependent Claim
22 words
The recording medium according to claim 1,
wherein said zirconium compound is an inorganic salt
and/or an organic acid salt of zirconium.
Claim 3
Dependent Claim
57 words
The recording medium according to claim 1,
wherein the ratio of a weight of said zirconium
compound converted into ZrO 2 to a weight of said alumina
hydrate converted into Al 2 O 3 (ZrO 2 /Al 2 O 3 ) is within a
range of from 1.0 × 10 -4 to 1.0 × 10 -1 .
Claim 4
Dependent Claim
19 words
The recording medium according to claim 1,
wherein said ink receiving layer further comprises one
or more organic acids.
Claim 5
Dependent Claim
38 words
The recording medium according to claim 4,
wherein said organic acid is contained within a range
of from 5.0 × 10 -4 to 1.0 mol/g based on the weight of
the zirconium compound converted into ZrO 2 .
Claim 6
Dependent Claim
30 words
The recording medium according to claim 1,
wherein said alumina hydrate has an average particle
diameter or an average particle length within a range
of from 1 to 50 nm.
Claim 7
Dependent Claim
24 words
The recording medium according to claim 1,
wherein said alumina hydrate has an average aspect
ratio within a range of from 3 to 10.
Claim 8
Dependent Claim
22 words
The recording medium according to claim 1,
wherein said alumina hydrate has a crystallinity within
a range of from 15 to 80.
Claim 9
Dependent Claim
32 words
The recording medium according to claim 1,
wherein a degree of parallelization between
microcrystals of said alumina hydrate and plane
direction of the ink receiving layer is at not less
than 1.5.
Claim 10
Dependent Claim
28 words
The recording medium according to claim 1,
wherein said alumina hydrate has a BET specific surface
area within a range of from 40 to 500 m 2 /g.
Claim 11
Dependent Claim
26 words
The recording medium according to claim 1,
wherein said alumina hydrate has a pore volume within a
range of from 0.1 to 1.0 cm 3 /g.
Claim 12
Dependent Claim
16 words
The recording medium according to claim 1,
wherein said ink receiving layer further comprises a
binder.
Claim 13
Dependent Claim
29 words
The recording medium according to claim 1,
wherein a mixing ratio by weight of the alumina hydrate
to a binder is within a range of from 1:1 to 30:1.
Claim 14
Dependent Claim
29 words
The recording medium according to claim 1,
wherein a mixing ratio in weight of the alumina hydrate
to a binder is within a range of from 3:1 to 20:1.
Claim 15
Dependent Claim
29 words
The recording medium according to claim 1,
wherein said ink receiving layer has a BET specific
surface area within a range of from 40 to 450 m 2 /g.
Claim 16
Dependent Claim
27 words
The recording medium according to claim 1,
wherein said ink receiving layer has a pore volume
within a range of from 0.1 to 1.0 cm 3 /g.
Claim 17
Dependent Claim
39 words
An image forming method by ejecting an ink
from a minute orifice and depositing said ink on a
recording medium, thereby forming a print, which
comprises using the recording medium according to any
one of claims 1 to 16.
Claim 18
Dependent Claim
21 words
The image forming method according to claim
17, wherein an ink droplet is ejected by applying
thermal energy to the ink.
Claim 19
Independent Claim
47 words
A method for producing a recording medium by
forming an ink receiving layer on a substrate, which
comprises applying and drying, on the substrate, a
dispersion comprising an alumina hydrate having a
boehmite structure, a non-coupling zirconium compound
and a binder, thereby forming the ink receiving layer.
Claim 20
Dependent Claim
21 words
The method for producing a recording medium
according to claim 19, wherein said dispersion further
comprises one or more organic acids.
Claim 21
Dependent Claim
20 words
An alumina dispersion comprising an alumina
hydrate, a binder and an inorganic salt and/or an
organic acid salt of zirconium.
Claim 22
Dependent Claim
57 words
The alumina dispersion according to claim 21,
wherein a ratio of a weight of said zirconium compound
converted into ZrO 2 to a weight of said alumina hydrate
converted into Al 2 O 3 (ZrO 2 /Al 2 O 3 ) is within a range of
from 1.0 × 10 -4 to 1.0 × 10 -1 .
Claim 23
Dependent Claim
29 words
The alumina dispersion according to claim 21,
wherein a mixing ratio by weight of the alumina hydrate
to the binder is within a range of from 1:1 to 30:1.
Claim 24
Dependent Claim
18 words
The alumina dispersion according to any one
of claims 21 to 23, comprising one or more organic
acids.
Claim 25
Dependent Claim
38 words
The alumina dispersion according to claim 24,
wherein said organic acid is contained within a range
of from 5.0 × 10 -4 to 1.0 mol/g based on the weight of
the zirconium compound converted into ZrO 2 .
Claim 26
Independent Claim
32 words
A method for producing an alumina
dispersion, which comprises mixing and dispersing a
binder in a dispersion comprising an alumina hydrate
and an inorganic salt and/or an organic acid salt of
zirconium.
Claim 27
Dependent Claim
60 words
The method for producing alumina dispersion
according to claim 26, wherein the ratio of a weight of
said zirconium compound converted into ZrO 2 to a weight
of said alumina hydrate converted into Al 2 O 3 (ZrO 2 /Al 2 O 3 )
is within a range of from 1.0 × 10 -4 to 1.0 × 10 -1 .
Claim 28
Dependent Claim
32 words
The method for producing alumina dispersion
according to claim 26, wherein a mixing ratio by weight
of the alumina hydrate to the binder is within a range
of from 1:1 to 30:1.
Claim 29
Independent Claim
24 words
The method for producing alumina dispersion
according to any one of claims 26 to 28, wherein said
dispersion comprises one or more organic acids.
Claim 30
Dependent Claim
41 words
The method for producing alumina dispersion
according to claim 29, wherein said organic acid is
contained within a range of from 5.0 × 10 -4 to 1.0 mol/g
based on the weight of the zirconium compound converted
into ZrO 2 .
References Cited (Backward Citations)
No citation records indexed.
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