Patent EP0349227A2 successfully refreshed from Google Patents.
EP0349227A2
Expired / Lapsed
EP
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Transparent film and color image forming method
Assignee: Canon Inc
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Filing: 1989-06-26
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Granted: —
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Expires: 2009-06-26
Abstract
Abstract A transparent laminate film, including at least a first transparent resin layer comprising a transparent resin having a heat-resistance, and a second transparent resin layer disposed thereon comprising a transparent resin, wherein the transparent resin of the second transparent resin layer has a compatibility with a binder resin of a toner to be fixed thereon, and has a large elasticity than that of the binder resin of the toner at a fixing temperature of the toner.
Inventors
- 👤 Tatsuo Takeuchi
- 👤 Koji Amemiya
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-01 09:30
CPC Classifications
G; G03; G03G; G03G9/00; G03G9/08; G03G9/087; G03G9/08742; G03G9/08755; G03G7/00; G03G7/0006; G03G7/002; G03G7/006; G03G7/0073
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
75 words
A transparent laminate film, comprising: at least a first transparent resin layer comprising a transparent resin having a heat-resistance, and a second transparent resin layer disposed thereon comprising a transparent resin; said transparent resin of the second transparent resin layer having a compatibility with a binder resin of a toner to be fixed thereon, and having a larger elasticity than that of the binder resin of the toner at a fixing temperature of the toner.
Claim 2
Dependent Claim
75 words
A transparent laminate film, comprising: at least a first transparent resin layer comprising a transparent resin having a heat-resistance, and a second transparent resin layer disposed thereon comprising a transparent resin; said transparent resin of the second transparent resin layer having a compatibility with a binder resin of a toner to be fixed thereon, and having a larger elasticity than that of the binder resin of the toner at a fixing temperature of the toner.
Claim 3
Dependent Claim
61 words
A transparent laminate film, comprising: a first transparent resin layer comprising a transparent resin having a heat-resistance, and a second transparent resin layer disposed thereon comprising a transparent resin; said transparent resin of the second transparent resin layer having a solubility parameter of 9.5 - 12.5, and a storage elasticity modulus (G′) of 100 - 10,000 dyne/cm² at 160 o C.
Claim 4
Dependent Claim
61 words
A transparent laminate film, comprising: a first transparent resin layer comprising a transparent resin having a heat-resistance, and a second transparent resin layer disposed thereon comprising a transparent resin; said transparent resin of the second transparent resin layer having a solubility parameter of 9.5 - 12.5, and a storage elasticity modulus (G′) of 100 - 10,000 dyne/cm² at 160 o C.
Claim 5
Dependent Claim
52 words
A laminate film according to claim 1 or 2, wherein said first transparent resin layer comprises a resin having a heat distortion temperature of 145 o C or higher, and said second transparent resin layer comprises a resin having a storage elasticity modulus of 100 - 10,000 dyne/cm² at 160 o C.
Claim 6
Dependent Claim
24 words
A laminate film according to claim 3, wherein said second transparent resin layer comprises a resin having a solubility parameter of 9.5 - 12.5.
Claim 7
Dependent Claim
41 words
A laminate film according to claim 3, wherein said first transparent resin layer comprises a polyethylene terephthalate resin and said second transparent resin layer comprises a resin having a storage elasticity modulus of 500 - 5,000 dyne/cm² at 160 o C.
Claim 8
Dependent Claim
17 words
A laminate film according to claim 5, wherein said second transparent resin layer comprises a polyester resin.
Claim 9
Dependent Claim
17 words
A laminate film according to claim 5, wherein said second transparent resin layer comprises an epoxy resin.
Claim 10
Dependent Claim
36 words
A laminate film according to any preceding claim, wherein said first transparent resin layer has a thickness of 50 - 200 microns, and said second transparent resin layer has a thickness of 3 - 30 microns.
Claim 11
Dependent Claim
39 words
A laminate film according to any of claims 1 - 3, wherein said first transparent resin layer has a thickness of 70 - 150 microns, and said second transparent resin layer has a thickness of 8 - 15 microns.
Claim 12
Independent Claim
69 words
A method for forming a light-transmissive color image, comprising: providing a transparent laminate film for light-transmission, said film being as claimed in any of claims 1 - 8; forming on said transparent laminate film a color toner image comprising a toner which comprises at least said binder resin and a chromatic colorant; and fixing the color toner image on the transparent laminate film under application of heat and pressure.
Claim 13
Dependent Claim
21 words
A method according to claim 10, wherein said color toner image is formed on the transparent laminate film through electrostatic transfer.
Claim 14
Dependent Claim
32 words
A method according to claim 9 or 10, wherein said color toner image is fixed on the transparent laminate film by fixing means comprising a heat fixing roller and a pressing roller.
Claim 15
Independent Claim
32 words
A method according to any of claims 10 to 12, wherein said second transparent resin layer has a thickness which is 1/2 to 3 times the volume-average particle size of the toner.
Claim 16
Independent Claim
21 words
A method according to any of claims 10 - 13, wherein the binder resin of the toner comprises a polyester resin.
Claim 17
Dependent Claim
24 words
A method according to claim 14, wherein the polyester resin has a storage elasticity modulus of 1 - 80 dyne/cm² at 160 o C.
Claim 18
Dependent Claim
24 words
A method according to claim 15, wherein the polyester resin has a storage elasticity modulus of 1 - 30 dyne/cm² at 160 o C.
Claim 19
Dependent Claim
59 words
A method according to claim 15, wherein the polyester resin satisfies a relationship of T₁ - T₂ =5 to 20 C, wherein T₁ denotes a temperature at which the polester resin shows an apparent melt viscosity of 10 poise, and T₂ denotes a temperature at which the polyester resin shows an apparent melt viscosity of 5 x 10² poise.
Claim 20
Independent Claim
44 words
A method according to any of claims 10 to 17, wherein the toner comprises a yellow toner, a magenta toner, a cyan toner or at least two species selected from the group consisting of a yellow toner, a magenta toner and a cyan toner.
Claim 21
Independent Claim
30 words
A method according to any of claims 10 - 19, wherein said color toner image is subjected to color mixing by fixing thereby to form a multi-colour or full-color image.
Claim 22
Independent Claim
46 words
A method for fixing a toner image as a film by the application of heat and pressure, wherein the film has a layer that interacts with toner particles during fixing so that after fixing the tendency of the fixed toner image to scatter light is reduced.
Claim 23
Independent Claim
46 words
A method for fixing a toner image as a film by the application of heat and pressure, wherein the film has a layer that interacts with toner particles during fixing so that after fixing the tendency of the fixed toner image to scatter light is reduced.
Claim 24
Independent Claim
48 words
A method for fixing a toner image on a transparent film by the application of heat and pressure, wherein the film presents a surface into which individual toner particles merge during fixing so that after fixing toner particle boundaries having a tendency to scatter light are substantially absent.
Claim 25
Independent Claim
48 words
A method for fixing a toner image on a transparent film by the application of heat and pressure, wherein the film presents a surface into which individual toner particles merge during fixing so that after fixing toner particle boundaries having a tendency to scatter light are substantially absent.
References Cited (Backward Citations)
No citation records indexed.
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