EP0858905A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Recording medium, ink-jet recording therewith, and process for production thereof
Assignee: Canon Inc
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Filing: 1998-02-17
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Granted: —
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Expires: 2018-02-17
Abstract
Abstract A recording medium comprises a porous outermost layer on a substrate, the porous outermost layer containing a particulate thermoplastic resin, and the particulate thermoplastic resin exhibiting a ΔE value of not higher than 20 after light exposure. The difference of glass transition temperature of the particulate thermoplastic resin from minimum film-forming temperature thereof may be not less than 10°C, and the minimum film-forming temperature is not lower than 50°C. A process for producing the recording medium comprises forming a porous outermost layer by heat treatment at a temperature of not lower than the glass transition temperature of the particulate thermoplastic resin, but not higher than the minimum film-forming temperature thereof.
Inventors
- 👤 Katsutoshi Misuda
- 👤 Nobuyuki Hosoi
- 👤 Kenji Shinjo
- 👤 Ako Omata
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 04:07
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/50; B41M5/52; B41M7/00; B41M5/502; B41M5/506; B41M5/5254; B41M5/5263; B41M5/5272; B41M5/5281
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
37 words
A recording medium comprising a porous
outermost layer on a substrate, said porous outermost
layer containing a particulate thermoplastic resin, and
said particulate thermoplastic resin exhibiting a ΔE
value of not higher than 20 after light exposure.
Claim 2
Dependent Claim
39 words
The recording medium according to claim 1,
wherein the difference of glass transition temperature
of said particulate thermoplastic resin from minimum
film-forming temperature thereof is not less than 10°C,
and the minimum film-forming temperature is not lower
than 50°C.
Claim 3
Dependent Claim
20 words
The recording medium according to claim 1,
wherein an ink-receiving layer is provided between said
substrate and said outermost layer.
Claim 4
Dependent Claim
14 words
The recording medium according to claim 3,
wherein said ink-receiving layer contains alumina
hydrate.
Claim 5
Dependent Claim
17 words
The recording medium according to claim 1,
wherein said particulate thermoplastic resin is
comprised of latex particles.
Claim 6
Dependent Claim
62 words
The recording medium according to claim 5,
wherein said latex particles are comprised of a
material selected from a group consisted of vinyl
chloride type, vinyl chloride-vinyl acetate type,
acrylate type, urethane type, polyester type, and
ethylene type; vinyl chloride-acrylate type, vinyl
chloride-vinylidene chloride type, vinylidene chloride-acrylate
type, SBR type, and NBR type; and copolymers
of two or more monomers selected therefrom.
Claim 7
Dependent Claim
38 words
The recording medium according to claim 6,
wherein said latex particles are comprised of a
copolymer formed from two or more monomers including at
least one of vinyl chloride, unsaturated carboxylate
esters, and vinyl esters of fatty acid.
Claim 8
Dependent Claim
48 words
The recording medium according to claim 6,
wherein said latex particles are composed of a
copolymer formed from three or more monomers including
at least one of vinyl chloride, unsaturated carboxylate
esters, and vinyl esters of fatty acid; and at least
one of a carboxyl group-containing polymerizable
monomers.
Claim 9
Dependent Claim
27 words
The recording medium according to claim 6,
wherein said latex particles are comprised of a
copolymer formed from three or more monomers of vinyl
chloride-vinyl acetate-acrylate type.
Claim 10
Dependent Claim
23 words
The recording medium according to claim 5,
wherein said particulate thermoplastic resin is a
homopolymer, or a copolymer of two or more monomers.
Claim 11
Dependent Claim
25 words
An ink-jet recording method comprising
allowing ink droplets to fly onto and adhere to a
recording medium set forth in claim 1 or claim 3.
Claim 12
Dependent Claim
31 words
An ink-jet recording method comprising
allowing ink droplets to fly onto and adhere to a
recording medium set forth in claim 1 or claim 3, and
subsequently heating the recording medium.
Claim 13
Dependent Claim
46 words
A process for producing the recording medium
set forth in claim 2, comprising forming a porous
outermost layer by heat treatment at a temperature of
not lower than the glass transition temperature of said
particulate thermoplastic resin, but not higher than
the minimum film-forming temperature thereof.
References Cited (Backward Citations)
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