Patent US5352553A successfully refreshed from Google Patents.
US5352553A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transparent film and color image forming method
Assignee: Canon Inc
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Filing: 1992-12-04
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Granted: 1994-10-04
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Expires: 2012-12-04
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
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:33
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
238 words
A method for forming a light-transmissive color image, comprising: (a) forming on a transparent laminate film a color toner image employing a toner which comprises at least a binder resin and a chromatic colorant; and (b) fixing the color toner image on the transparent laminate film by direct contact with a heat fixing roller together with applying heat and pressure wherein said transparent laminate film comprises at least a first transparent resin layer comprising a heat-resistant first transparent resin, and a second transparent resin layer disposed thereon comprising a second transparent resin; said second transparent resin of the second transparent resin layer being compatible with said binder resin of said toner to be fixed thereon, at a fixing temperature of said toner, wherein said second transparent resin and said binder resin being compatible do not form a visible boundary in a resultant toner image after fixing, and said second transparent resin has an elasticity 5 to 1,000 times that of the binder resin of the toner at the fixing temperature of said toner; wherein (i) said first transparent resin of said first transparent resin layer has a heat distortion temperature of at least 145° C., wherein said first transparent resin is a resin selected from the group consisting of polyethylene terephthalate, polyamide and polyimide; and (ii) said second transparent resin of said second transparent resin layer has a storage elasticity modulus of 100-10,000 dyne/cm 2 at 160° C.
Claim 2
Independent Claim
238 words
A method for forming a light-transmissive color image, comprising: (a) forming on a transparent laminate film a color toner image employing a toner which comprises at least a binder resin and a chromatic colorant; and (b) fixing the color toner image on the transparent laminate film by direct contact with a heat fixing roller together with applying heat and pressure wherein said transparent laminate film comprises at least a first transparent resin layer comprising a heat-resistant first transparent resin, and a second transparent resin layer disposed thereon comprising a second transparent resin; said second transparent resin of the second transparent resin layer being compatible with said binder resin of said toner to be fixed thereon, at a fixing temperature of said toner, wherein said second transparent resin and said binder resin being compatible do not form a visible boundary in a resultant toner image after fixing, and said second transparent resin has an elasticity 5 to 1,000 times that of the binder resin of the toner at the fixing temperature of said toner; wherein (i) said first transparent resin of said first transparent resin layer has a heat distortion temperature of at least 145° C., wherein said first transparent resin is a resin selected from the group consisting of polyethylene terephthalate, polyamide and polyimide; and (ii) said second transparent resin of said second transparent resin layer has a storage elasticity modulus of 100-10,000 dyne/cm 2 at 160° C.
Claim 3
Dependent Claim
21 words
A method according to claim 1, wherein said color toner image is formed on the transparent laminate film through electrostatic transfer.
Claim 4
Dependent Claim
30 words
A method according to claim 1, 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 5
Dependent Claim
27 words
A method according to claim 1, wherein said second transparent resin layer comprises a resin having a solubility parameter of 9.5-12.5 (ca 1 /cm 3 ) 1/2.
Claim 6
Dependent Claim
28 words
A method according to claim 1, 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 7
Dependent Claim
30 words
A method according to claim 1, 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 8
Dependent Claim
30 words
A method according to claim 1, wherein said first transfer resin layer has a thickness of 70-150 microns, and said second transfer resin layer has a thickness of 8-15 microns.
Claim 9
Dependent Claim
36 words
A method according to claim 1, wherein said first transparent resin layer comprises polyethylene terephthalate and said second transparent resin layer comprises a resin having a storage elasticity modulus of 500-5,000 dyne/cm 2 at 160° C.
Claim 10
Dependent Claim
16 words
A method according to claim 8, wherein said second transparent resin layer comprises a polyester resin.
Claim 11
Dependent Claim
16 words
A method according to claim 8, wherein said second transparent resin layer comprises an epoxy resin.
Claim 12
Dependent Claim
17 words
A method according to claim 1, wherein the binder resin of the toner comprises a polyester resin.
Claim 13
Dependent Claim
22 words
A method according to claim 11, wherein the polyester resin has a storage elasticity modulus of 1-80 dyne/cm 2 at 160° C.
Claim 14
Dependent Claim
22 words
A method according to claim 11, wherein the polyester resin has a storage elasticity modulus of 1-30 dyne/cm 2 at 160° C.
Claim 15
Dependent Claim
62 words
A method according to claim 12, wherein the polyester resin satisfies a relationship of |T 1 -T 2 |=5° to 20° C., wherein T 1 denotes a temperature at which the polyester resin shows an apparent melt viscosity of 10 3 poise, and T 2 denotes a temperature at which the polyester resin shows an apparent melt viscosity of 5×10 2 poise.
Claim 16
Dependent Claim
13 words
A method according to claim 1, wherein the toner comprises a yellow toner.
Claim 17
Dependent Claim
13 words
A method according to claim 1, wherein the toner comprises a magenta toner.
Claim 18
Dependent Claim
13 words
A method according to claim 1, wherein the toner comprises a cyan toner.
Claim 19
Dependent Claim
34 words
A method according to claim 1, wherein said color toner image is formed from at least two species selected from the group consisting of a yellow toner, a magenta toner and a cyan toner.
Claim 20
Dependent Claim
26 words
A method according to claim 1, wherein said color toner image is subjected to color mixing by fixing thereby to form a multi-color or full-color image.
Claim 21
Independent Claim
151 words
A method for forming a light transmissive color image comprising: (a) forming on a transparent laminate film a color toner image employing a dry toner which comprises at least a polyester binder resin and a chromatic colorant; and (b) fixing the color toner image on the transparent laminate film by direct contact with a heat fixing roller while applying heat and pressure, wherein said transparent laminate film comprises at least a first transparent resin layer comprising a heat-resistant first transparent resin having a heat distortion temperature of at least 145° C., and a second transparent resin layer disposed thereon comprising a second transparent resin; said second transparent resin of the second transparent resin layer being compatible with said polyester binder resin of said toner to be fixed thereto, and said second transparent resin has a storage elasticity modulus which is 5 to 1000 times that of said toner of 160° C.
Claim 22
Independent Claim
151 words
A method for forming a light transmissive color image comprising: (a) forming on a transparent laminate film a color toner image employing a dry toner which comprises at least a polyester binder resin and a chromatic colorant; and (b) fixing the color toner image on the transparent laminate film by direct contact with a heat fixing roller while applying heat and pressure, wherein said transparent laminate film comprises at least a first transparent resin layer comprising a heat-resistant first transparent resin having a heat distortion temperature of at least 145° C., and a second transparent resin layer disposed thereon comprising a second transparent resin; said second transparent resin of the second transparent resin layer being compatible with said polyester binder resin of said toner to be fixed thereto, and said second transparent resin has a storage elasticity modulus which is 5 to 1000 times that of said toner of 160° C.
Claim 23
Dependent Claim
44 words
A method according to claim 20, wherein the first transparent resin comprises polyethylene terephthalate, the second transparent resin has a biphenol A-type dihydroxy component and the toner comprises at least a polyester binder resin having a bisphenol A-type dihydroxy component and a chromatic colorant.
Claim 24
Dependent Claim
23 words
A method according to claim 21, wherein the second transparent resin has a storage elasticity modulus of 100-10,000 dyne/cm 2 at 160° C.
Claim 25
Dependent Claim
34 words
A method according to claim 20, wherein the color toner image is fixed at a fixing temperature of 130° to 170° C. by fixing means comprising said heat fixing roller and a pressure roller.
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