Patent US5380695A successfully refreshed from Google Patents.
US5380695A
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Image-receiving element for thermal dye transfer method
Assignee: YAMA CAPITAL LLC
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Filing: 1994-04-22
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Granted: 1995-01-10
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Expires: 2014-04-22
Abstract
Abstract An image-receiving element and a method of using same in the production of images by thermal dye transfer processing, the image-receiving element comprising a support, a polymeric security layer having a printed security layer, and an image-receiving layer for receiving dye by thermal transfer from a dye donor sheet, the polymeric security layer having cohesivity less than its adhesivity for each layer contiguous and the printed security pattern being destroyed by an attempted delamination of the image-receiving layer from the image-receiving element.
Inventors
- 👤 Yunn H. Chiang
- 👤 Russell A. Gaudiana
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:41
CPC Classifications
B; B42; B42D; B42D25/00; B42D25/40; B42D25/45; B42D25/465; B42D25/47; B41; B41M; B41M3/00; B41M3/14; B41M5/00; B41M5/26; B41M5/40; B41M5/42; B42D25/30; B42D25/36; B42D25/378; B42D25/382; B42D25/387; B42D3/00; B42D3/12; B42D3/14; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24851; Y10T428/24868; Y10T428/24876; Y10T428/31504; Y10T428/31855; Y10T428/31971
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
102 words
An image-receiving element for the production of a dye image by thermal dye transfer, the image-receiving element comprising in order: a support sheet; a polymeric cohesively destructible security layer having a printed security pattern comprising a patterning agent and a binder therefor; and an image-receiving layer for receiving an image in dye by a thermal transfer from a dye donor sheet; said polymeric cohesively destructible security layer pattern being characterized by a cohesivity less than the adhesivity of such layer for each layer contiguous thereto, said printed security pattern being destroyed by attempted delamination of said image-receiving layer from said image-receiving element.
Claim 2
Dependent Claim
102 words
An image-receiving element for the production of a dye image by thermal dye transfer, the image-receiving element comprising in order: a support sheet; a polymeric cohesively destructible security layer having a printed security pattern comprising a patterning agent and a binder therefor; and an image-receiving layer for receiving an image in dye by a thermal transfer from a dye donor sheet; said polymeric cohesively destructible security layer pattern being characterized by a cohesivity less than the adhesivity of such layer for each layer contiguous thereto, said printed security pattern being destroyed by attempted delamination of said image-receiving layer from said image-receiving element.
Claim 3
Dependent Claim
38 words
The image-receiving element of claim 1 wherein said printed security pattern upon said attempted delamination is partitioned between respective cohesively failed portions of said destructible layer adhered to each of opposed layers contiguous to said destructible polymeric layer.
Claim 4
Dependent Claim
24 words
The image-receiving element of claim 2 wherein said printed security pattern is a fine-line printed pattern in a thickness of from 0.5 to 4μ.
Claim 5
Dependent Claim
30 words
The image-receiving element of claim 3 wherein said binder for said patterning agent comprises a polymeric binder having adhesivity for each of said polymeric destructible layer and said image-receiving layer.
Claim 6
Dependent Claim
11 words
The image-receiving element of claim 4 wherein said binder comprises hydroxypropylcellulose.
Claim 7
Dependent Claim
22 words
The image-receiving element of claim 5 wherein said patterning agent comprises an IR-absorbing dye or a dye which fluoresces under ultraviolet irradiation.
Claim 8
Dependent Claim
16 words
The image-receiving element of claim 4 wherein said patterning agent comprises a colored pigment or dye.
Claim 9
Dependent Claim
15 words
The image-receiving element of claim 4 wherein said destructible security layer comprises styrenated acrylic polymer.
Claim 10
Dependent Claim
13 words
The image-receiving element of claim 8 wherein said image-receiving layer comprises polyvinyl chloride.
Claim 11
Independent Claim
160 words
A method of preparing an identification document secure against tampering and including the steps of: providing an image-receiving element comprising, in order, a support sheet; a polymeric cohesively destructible security layer having a printed security pattern comprising a patterning agent and a binder therefor; and an image-receiving layer for receiving an image in dye by a thermal transfer from a dye donor sheet; said polymeric cohesively destructible security layer being characterized by a cohesivity less than the adhesivity of such layer for each layer contiguous thereto, and said security pattern being destroyed by attempted delamination of said image-receiving layer from said image-receiving element; contacting the image-receiving layer of said image-receiving element with a dye donor sheet comprising a support and a thermally transferable dye; imagewise transferring said dye of said dye donor sheet to the image-receiving layer of said image-receiving element, thereby to provide a dye image-bearing layer; and separating said donor sheet and said image-bearing element from each other.
Claim 12
Independent Claim
160 words
A method of preparing an identification document secure against tampering and including the steps of: providing an image-receiving element comprising, in order, a support sheet; a polymeric cohesively destructible security layer having a printed security pattern comprising a patterning agent and a binder therefor; and an image-receiving layer for receiving an image in dye by a thermal transfer from a dye donor sheet; said polymeric cohesively destructible security layer being characterized by a cohesivity less than the adhesivity of such layer for each layer contiguous thereto, and said security pattern being destroyed by attempted delamination of said image-receiving layer from said image-receiving element; contacting the image-receiving layer of said image-receiving element with a dye donor sheet comprising a support and a thermally transferable dye; imagewise transferring said dye of said dye donor sheet to the image-receiving layer of said image-receiving element, thereby to provide a dye image-bearing layer; and separating said donor sheet and said image-bearing element from each other.
Claim 13
Dependent Claim
41 words
The method of claim 10 wherein said printed security pattern of said image-receiving element, upon said attempted delamination, is partitioned between respective cohesively failed portions of said destructible layer adhered to each of opposed layers contiguous to said destructible polymeric layer.
Claim 14
Dependent Claim
29 words
The method of claim 10 wherein said binder for said patterning agent comprises a polymeric binder having adhesivity for each of said polymeric destructible layer and said image-receiving layer.
Claim 15
Dependent Claim
10 words
The method of claim 10 wherein said binder comprises hydroxypropylcellulose.
Claim 16
Dependent Claim
15 words
The method of claim 13 wherein said patterning agent comprises a colored pigment or dye.
Claim 17
Dependent Claim
21 words
The method of claim 14 wherein said patterning agent comprises an IR-absorbing dye or a dye which fluoresces under ultraviolet irradiation.
Claim 18
Dependent Claim
14 words
The method of claim 15 wherein said destructible security layer comprises styrenated acrylic polymer.
Claim 19
Dependent Claim
12 words
The method of claim 16 wherein said image-receiving layer comprises polyvinyl chloride.
Claim 20
Dependent Claim
21 words
The method of claim 10 including the additional step of laminating a protective polymeric layer or sheet to said image-bearing surface.
Claim 21
Dependent Claim
18 words
The method of claim 18 wherein said protective polymeric layer or sheet comprises a sheet of polyvinyl chloride.
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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) | 1998-01-09 | 1998-07-11 | 1999-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-01-09 | 2002-07-11 | 2003-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-01-09 | 2006-07-11 | 2007-01-10 | $7700.00 | Window Closed / Lapsed |