US5260255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat transfer image-receiving sheet
Assignee: Dai Nippon Printing Co Ltd
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Filing: 1990-10-23
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Granted: 1993-11-09
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Expires: 2010-10-23
Abstract
Abstract A heat transfer image-receiving sheet including a substrate sheet, a dye-receiving layer formed on the surface side of the substrate sheet and a slip layer formed on the back side of the substrate sheet. That slip layer includes a graft copolymer in which at least one releasable segment selected from the group consisting of a polysiloxane segment, a carbon fluoride segment and a long-chain alkyl segment is grafted on its main chain.
Inventors
- 👤 Kenichiro Sudo
- 👤 Hiroshi Eguchi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:54
CPC Classifications
B; B41; B41M; B41M5/00; B41M5/50; B41M5/52; B41M5/26; B41M5/40; B41M5/41; B41M5/42; B41M2205/00; B41M2205/02; B41M2205/06; B41M2205/36; B41M5/426; B41M5/44; B41M5/446; B41M5/5218; B41M5/5227; B41M5/5245; B41M5/5254; B41M5/5263; B41M5/5272; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10S428/914; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31652; Y10T428/31663
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
124 words
A heat transfer image-receiving sheet comprising: a substrate sheet; a dye-receiving layer formed on the front side of the substrate sheet and comprising a resin for receiving a sublimable dye transferred in the form of an image from a heat transfer sheet, said resin maintaining the dye image in said dye-receiving layer; and a slip layer formed on the back side of the substrate sheet to prevent said heat transfer image-receiving sheet from striking to a dye-receiving layer of other heat transfer image-receiving sheets, said slip layer containing a polymer comprising a graft copolymer having at least one of polysiloxane, fluoroalkyl and long-chain alkyl segments grafter on its main chain, wherein the segments account of 3 to 60% by weight of the graft copolymer.
Claim 2
Dependent Claim
124 words
A heat transfer image-receiving sheet comprising: a substrate sheet; a dye-receiving layer formed on the front side of the substrate sheet and comprising a resin for receiving a sublimable dye transferred in the form of an image from a heat transfer sheet, said resin maintaining the dye image in said dye-receiving layer; and a slip layer formed on the back side of the substrate sheet to prevent said heat transfer image-receiving sheet from striking to a dye-receiving layer of other heat transfer image-receiving sheets, said slip layer containing a polymer comprising a graft copolymer having at least one of polysiloxane, fluoroalkyl and long-chain alkyl segments grafter on its main chain, wherein the segments account of 3 to 60% by weight of the graft copolymer.
Claim 3
Dependent Claim
30 words
A heat transfer image-receiving sheet as recited in claim 1, wherein the main chain of said graft copolymer is a resin based on acrylic, vinyl, polyester, polyurethane, polyamide or cellulose.
Claim 4
Dependent Claim
36 words
A heat transfer image-receiving sheet as recited in claim 1, wherein said slip layer further comprises a resin having a Tg of at least 60° C., said resin forming the main chain of the graft copolymer.
Claim 5
Dependent Claim
50 words
A heat transfer image-receiving sheet as recited in claim 1, wherein said slip layer contains at least one of organic particles and inorganic particles having a particle size of 0.5 to 30 microns, the particles being present in an amount of 0.02 to 10% by weight of the slip layer.
Claim 6
Dependent Claim
25 words
A heat transfer image-receiving sheet as recited in claim 1, wherein said substrate sheet is treated on its surface such that it is easily bondable.
Claim 7
Dependent Claim
21 words
A heat transfer image-receiving sheet as recited in claim 1, wherein said substrate sheet and said dye-receiving layer are both transparent.
Claim 8
Dependent Claim
26 words
A heat transfer image-receiving sheet as recited in claim 6, further comprising a light transmitting, colored detection mark having a transmission density of 0.3 to 0.8.
Claim 9
Dependent Claim
25 words
A heat transfer image-receiving sheet as recited in claim 7, wherein said detection mark is formed on an ink containing a dye or transparent pigment.
Claim 10
Dependent Claim
24 words
A heat transfer image-receiving sheet as recited in claim 7, wherein said detection mark is formed by the heat transfer of a sublimable dye.
Claim 11
Dependent Claim
63 words
A heat transfer image-receiving sheet as recited in claim 7, further comprising a curlproof layer formed on at least one side of the substrate sheet, said curlproof layer comprising a resin having a shrinkage upon heating in the range of -1.0 to 1.5%, as measured at 100° C. for 10 minutes according to JIS-K-6734, and a softening temperature of at least 90° C.
Claim 12
Dependent Claim
30 words
A heat transfer image-receiving sheet as recited in claim 10, wherein said curlproof layer contains a filler, said filler accounting for 0.02 to 10.0% by weight of said curlproof layer.
Claim 13
Dependent Claim
59 words
A heat transfer image-receiving sheet comprising: a transparent substrate sheet; a transparent dye-receiving layer formed on the front surface side of the transparent substrate sheet; and a light transmitting, colored detection mark provided on a portion of at least one side surface of said heat transfer image-receiving sheet, said detection mark having a transmission density of 0.3 to 0.8.
Claim 14
Dependent Claim
59 words
A heat transfer image-receiving sheet comprising: a transparent substrate sheet; a transparent dye-receiving layer formed on the front surface side of the transparent substrate sheet; and a light transmitting, colored detection mark provided on a portion of at least one side surface of said heat transfer image-receiving sheet, said detection mark having a transmission density of 0.3 to 0.8.
Claim 15
Dependent Claim
25 words
A heat transfer image-receiving sheet as recited in claim 12, wherein said detection mark is formed of an ink containing a dye or transparent pigment.
Claim 16
Dependent Claim
24 words
A heat transfer image-receiving sheet as recited in claim 12, wherein said detection mark is formed by the heat transfer of a sublimable dye.
Claim 17
Dependent Claim
34 words
A heat transfer image-receiving sheet as recited in claim 12, wherein a curlproof layer comprising a resin having a low heat expandable/shrinkable property is formed on at least one side of the substrate sheet.
Claim 18
Dependent Claim
30 words
A heat transfer image-receiving sheet as recited in claim 15, wherein said curlproof layer contains a filler, said filler accounting for 0.02 to 10.0% by weight of said curlproof layer.
Claim 19
Dependent Claim
19 words
A heat transfer image-receiving sheet as recited in claim 12, which is colored by a blue dye or pigment.
Claim 20
Dependent Claim
45 words
A heat transfer image-receiving sheet as recited in claim 17, wherein the chromaticity value of said blued heat transfer image-receiving sheet lies in a region of the CIE 1931 system of color representation surrounded by the following three points: (x=0.310, y=0.316) (x=0.285, y=0.280) (x=0.275, y=0.320).
References Cited (Backward Citations)
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JPS6266995A
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JPS62135389A
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US4778782A
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JPS62218186A
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JPH01214475A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-11-08 | 1997-05-10 | 1997-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-11-08 | 2001-05-10 | 2001-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-11-08 | 2005-05-10 | 2005-11-09 | $7700.00 | Window Closed / Lapsed |