EP0778156A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Image-receptive sheet
Assignee: Oce USA Inc
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Filing: 1996-12-06
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Granted: —
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Expires: 2016-12-06
Abstract
Abstract A multi-purpose imageable sheet is provided that is useful for multiple applications including manual drafting, ink jet recording and electrophotographic printing and copying. The sheet comprises a base support and a surface coating on at least one side thereof, with the surface coating being formed from an aqueous-based coating formulation that comprises an aqueous dispersion of (i) a crosslinkable polymer and a crosslinking agent therefor, and (ii) a pigment. The surface coating is a pencil, ink and toner receptive crosslinked surface layer that embodies properties that make its surface suitable as a receptor for a variety of imaging means.
Inventors
- 👤 John Joseph Chernovitz
- 👤 David Habib
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 09:04
CPC Classifications
G; G03; G03G; G03G7/00; G03G7/0093; B; B41; B41M; B41M5/00; B41M5/50; B41M5/52; B41M5/5254; G03G7/0006; G03G7/002; G03G7/0026; G03G7/004; G03G7/0046; G03G7/006; B41M5/502; B41M5/508; B41M5/5227; B41M5/5263; B41M5/5281; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24835; Y10T428/24893; Y10T428/24901; Y10T428/24942; Y10T428/24983; Y10T428/24992; Y10T428/31504; Y10T428/31511; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31971; Y10T428/31993
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
131 words
An imageable sheet, comprising: a base support having an image-receptive matrix surface coating layer on at least one side thereof, wherein said surface coating layer possesses a matrix hardness of at least 4B to 9H, a pencil abrasivity of from 0.001 to 0.010 gram, a surface resistivity of from 1 x 10 8 to 1 x 10 15 ohms per square, and an ink contact angle of from 27° to 120°, wherein said surface coating layer is prepared from an aqueous-based coating formulation that comprises (i) an aqueous dispersion of a crosslinkable polymer or copolymer and a crosslinking agent therefor, and (ii) a pigment, and wherein said surface coating layer is formed by applying said aqueous-based coating formulation to at least one side of the base support and drying the same.
Claim 2
Dependent Claim
13 words
The imageable sheet of claim 1, wherein the base support is a vellum.
Claim 3
Dependent Claim
14 words
The imageable sheet of claim 1, wherein the base support is an opaque paper.
Claim 4
Dependent Claim
110 words
An imageable sheet, comprising: a vellum base support that has been transparentized by impregnating a vellum sheet with a transparentizing agent having a refractive index within 0.06 refractive index units of said vellum sheet, and a surface coating layer on at least one surface of the vellum base support; wherein said surface coating layer is prepared from an aqueous-based coating formulation that comprises (i) an aqueous dispersion of a crosslinkable polymer or copolymer and a crosslinking agent therefor, and (ii) a pigment, and wherein said surface coating layer is formed by applying said aqueous-based coating formulation to at least one side of said vellum base support and drying the same.
Claim 5
Dependent Claim
63 words
The imageable sheet of claim 5, wherein the surface coating on the surface of the transparentized paper possesses a matrix hardness of at least 4B to 9H, a pencil abrasivity of from 0.001 to 0.010 gram, a surface resistivity of from 1 x 10 8 to 1 x 10 15 ohms per square, and an ink contact angle of from 27°C to 120°C.
Claim 6
Dependent Claim
30 words
The imageable sheet according to claim 5 or 6, wherein said transparentizing agent is an organic solvent-free transparentizing liquid having a refractive index of from 1.460 to 1.488 at 25°C.
Claim 7
Dependent Claim
26 words
The imageable sheet of claim 7, wherein said transparentizing liquid is selected from the group consisting of mineral oil, polybutene and glycol esters of hydrogenated resins.
Claim 8
Dependent Claim
13 words
The imageable sheet of claim 7, wherein said transparentizing liquid is mineral oil.
Claim 9
Dependent Claim
43 words
The imageable sheet of claim 1, 5 or 6, wherein the crosslinkable polymer or copolymer is selected from the group consisting of: a crosslinkable copolymer of diglycidyl ethers of bisphenol, a crosslinkable urethane modified bisphenol epoxy resin, and a crosslinkable modified acrylic resin.
Claim 10
Dependent Claim
39 words
The imageable sheet of claim 1, 4 or 5, wherein the ratio of crosslinkable polymer or copolymer to pigment present in the coating layer is within the range of from about 100:2 to about 100:12, on a weight/weight basis.
References Cited (Backward Citations)
No citation records indexed.
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