US4621040A
Expired / Lapsed
US
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Imaging element and process with laser absorptive ink barrier layer
Assignee: Polaroid Corp
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Filing: 1985-10-21
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Granted: 1986-11-04
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Expires: 2005-10-21
Abstract
Abstract A method for forming an image which comprises imagewise exposing an imaging element with a laser, said imaging element comprising a support carrying on a first surface, in sequence, a layer of microcapsules containing an ink, and a laser-absorptive, ink barrier layer; superposing an imaging-receiving layer adapted to receive ink from said microcapsules over said imaging element and rupturing said microcapsules; whereby ink from said microcapsules in the exposed areas of the imaging element diffuses to said superposed receiving layer forming an image corresponding to the laser exposure.
Inventors
- 👤 Michael S. Viola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:45
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/002; B; B41; B41M; B41M5/00; B41M5/26; B41M5/28; B41M5/287; Y; Y10; Y10S; Y10S430/00; Y10S430/146
Claims Analysis
Total Claims: 33
Claim 1
Independent Claim
45 words
An imaging element consisting essentially of a support carrying on the first surface, in sequence, a layer of microcapsules containing an ink, and a laser-absorpitve, ink barrier layer, said barrier layer adapted to permit ink to penetrate therethrough upon contact with an exposing laser beam.
Claim 2
Dependent Claim
45 words
An imaging element consisting essentially of a support carrying on the first surface, in sequence, a layer of microcapsules containing an ink, and a laser-absorpitve, ink barrier layer, said barrier layer adapted to permit ink to penetrate therethrough upon contact with an exposing laser beam.
Claim 3
Dependent Claim
15 words
The product of claim 1 wherein said laser-absorptive, ink barrier layer comprises a low-melting resin.
Claim 4
Dependent Claim
15 words
The product of claim 1 wherein said laser-absorptive, ink barrier layer comprises a thermoplastic polymer.
Claim 5
Dependent Claim
11 words
The product of claim 3 wherein said polymer is polyvinyl alcohol.
Claim 6
Dependent Claim
14 words
The product of claim 1 wherein said laser-absorptive, ink barrier layer contains carbon black.
Claim 7
Dependent Claim
15 words
The product of claim 1 wherein said laser-absorptive, ink barrier layer contains an infrared absorber.
Claim 8
Dependent Claim
15 words
The product of claim 1 wherein said laser-absorptive, ink barrier layer contains an ultraviolet absorber
Claim 9
Dependent Claim
16 words
The product of claim 1 wherein said microcapsules range from about 1 to about 100 micrometers.
Claim 10
Dependent Claim
10 words
The product of claim 1 wherein said ink is non-aqueous.
Claim 11
Dependent Claim
10 words
The product of claim 1 wherein said ink is aqueous.
Claim 12
Dependent Claim
11 words
The product of claim 1 wherein said ink contains a pigment.
Claim 13
Dependent Claim
11 words
The product of claim 1 wherein said ink contains a dye.
Claim 14
Dependent Claim
12 words
The product of claim 1 wherein said ink contains a color precursor.
Claim 15
Independent Claim
100 words
A method for forming an image which comprises imagewise exposing an imaging element with a laser, said imaging element consisting essentially of a support carrying on a first surface, in sequence, a layer of microcapsules containing an ink, and a laser-absorptive, ink barrier layer; said laser exposure altering said barrier layer in the areas of exposure to permit ink to penetrate therethrough; superposing an image-receiving element adapted to receive ink from said microcapsules over said imaging element and rupturing said microcapsules whereby ink from said microcapsules diffuses to said superposed receiving element forming an image corresponding to the laser exposure.
Claim 16
Independent Claim
100 words
A method for forming an image which comprises imagewise exposing an imaging element with a laser, said imaging element consisting essentially of a support carrying on a first surface, in sequence, a layer of microcapsules containing an ink, and a laser-absorptive, ink barrier layer; said laser exposure altering said barrier layer in the areas of exposure to permit ink to penetrate therethrough; superposing an image-receiving element adapted to receive ink from said microcapsules over said imaging element and rupturing said microcapsules whereby ink from said microcapsules diffuses to said superposed receiving element forming an image corresponding to the laser exposure.
Claim 17
Dependent Claim
19 words
The method of claim 14 wherein said image-receiving element comprises a support carrying an image-receiving layer for said ink.
Claim 18
Dependent Claim
12 words
The method of claim 15 wherein said image-receiving element support is transparent.
Claim 19
Dependent Claim
12 words
The method of claim 15 wherein said image-receiving element support is opaque.
Claim 20
Dependent Claim
15 words
The method of claim 14 wherein said laser-absorptive, ink barrier layer comprises a low-melting resin.
Claim 21
Dependent Claim
15 words
The method of claim 14 wherein said laser-absorptive, ink barrier layer comprises a thermoplastic polymer.
Claim 22
Dependent Claim
11 words
The method of claim 19 wherein said polymer is polyvinyl alcohol.
Claim 23
Dependent Claim
14 words
The method of claim 14 wherein said laser-absorptive, ink barrier layer contains carbon black.
Claim 24
Dependent Claim
15 words
The method of claim 14 wherein said laser-absorptive, ink barrier layer contains an infrared absorber.
Claim 25
Dependent Claim
15 words
The method of claim 14 wherein said laser-absorptive, ink barrier layer contains an ultraviolet absorber.
Claim 26
Dependent Claim
10 words
The method of claim 14 wherein said ink is non-aqueous.
Claim 27
Dependent Claim
10 words
The method of claim 14 wherein said ink is aqueous.
Claim 28
Dependent Claim
11 words
The method of claim 14 wherein said ink contains a pigment.
Claim 29
Dependent Claim
11 words
The method of claim 14 wherein said ink contains a dye.
Claim 30
Dependent Claim
12 words
The method of claim 14 wherein said ink contains a collor precursor.
Claim 31
Dependent Claim
42 words
The method of claim 14 wherein said ink comprises a first color-forming substance and said image-receiving element contains a second color forming substance; said first and second color forming substance adapted to co-react to form a colored substance in said image-receiving layer.
Claim 32
Dependent Claim
23 words
The method of claim 29 wherein said ink is a colorless lactone dye and an acid developer is retained in said image-receiving element.
Claim 33
Dependent Claim
23 words
The method of claim 14 wherein said capsules are ruptured by passing said imaging element and said image-receiving element between pressure applying rollers.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-11-03 | 1990-05-05 | 1990-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-03 | 1994-05-05 | 1994-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-03 | 1998-05-05 | 1998-11-04 | $7700.00 | Window Closed / Lapsed |