US4356254A
Expired / Lapsed
US
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Image-forming method using o-quinone diazide and basic carbonium dye
Assignee: Fujifilm Holdings Corp
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Filing: 1980-07-07
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Granted: 1982-10-26
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Expires: 2000-07-07
Abstract
Abstract An image-forming method is described using a light-sensitive material comprising a support and a light-sensitive layer on the support, said light-sensitive layer containing an o-quinonediazide compound as a first component and a basic carbonium dye as a second component; according to this method images can be obtained both by positive working and negative working techniques. Furthermore, images which are free from yellow light fogging can be obtained by use of a laser beam.
Inventors
- 👤 Yohnosuke Takahashi
- 👤 Hiromichi Tachikawa
- 👤 Fumiaki Shinozaki
- 👤 Tomoaki Ikeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:09
CPC Classifications
G; G03; G03F; G03F7/00; G03F7/004; G03F7/022; G03F7/0226; G03F7/09; G03F7/105; Y; Y10; Y10S; Y10S430/00; Y10S430/146
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
108 words
An image-forming method which comprises imagewise exposing a light-sensitive material comprising a support and a light-sensitive composition layer provided on the support, said light-sensitive composition layer consisting of an o-quinonediazide compound as a first component and a basic carbonium dye as a second component, to light to which the o-quinonediazide compound is sensitive, whereby said compound becomes alkali soluble, overall heating the light-sensitive material simultaneously with imagewise exposure or after imagewise exposure to insolubilize the exposed areas, overall exposing the thus-processed material to light to solubilize unexposed areas and then developing with an alkaline developer to provide a negative image by removing alkaline soluble areas of said layer.
Claim 2
Dependent Claim
108 words
An image-forming method which comprises imagewise exposing a light-sensitive material comprising a support and a light-sensitive composition layer provided on the support, said light-sensitive composition layer consisting of an o-quinonediazide compound as a first component and a basic carbonium dye as a second component, to light to which the o-quinonediazide compound is sensitive, whereby said compound becomes alkali soluble, overall heating the light-sensitive material simultaneously with imagewise exposure or after imagewise exposure to insolubilize the exposed areas, overall exposing the thus-processed material to light to solubilize unexposed areas and then developing with an alkaline developer to provide a negative image by removing alkaline soluble areas of said layer.
Claim 3
Dependent Claim
28 words
An image-forming method as in claim 1, wherein the basic carbonium dye is a diphenylmethane dye, a triphenylmethane dye, a xanthene dye, an acridine dye, or combinations thereof.
Claim 4
Dependent Claim
31 words
An image-forming method as in claim 2, wherein the amount of basic carbonium dye is from about 0.005 to 1 part by weight per part by weight of the o-quinonediazide compound.
Claim 5
Dependent Claim
31 words
An image-forming method as in claim 3, wherein the amount of basic carbonium dye is from about 0.01 to 1 part by weight per part by weight of the o-quinonediazide compound.
Claim 6
Dependent Claim
17 words
The image-forming method as in claim 1, wherein said o-quinonediazide compound is an o-benzoquinonediazide or an o-naphthoquinonediazide.
Claim 7
Dependent Claim
23 words
The image-forming method as in claim 1, wherein said o-quinonediazide compound is a sulfonic acid ester of a hydroxyl compound and an o-quinonediazide.
Claim 8
Dependent Claim
16 words
The image-forming method as in claim 1, wherein said basic carbonium dye is a diphenylmethane dye.
Claim 9
Dependent Claim
16 words
The image-forming method as in claim 1, wherein said basic carbonium dye is a triphenylmethane dye.
Claim 10
Dependent Claim
16 words
The image-forming method as in claim 1, wherein said basic carbonium dye is a xanthene dye.
Claim 11
Dependent Claim
16 words
The image-forming method as in claim 1, wherein said basic carbonium dye is an acridine dye.
Claim 12
Dependent Claim
110 words
An image-forming method which comprises imagewise exposing a light-sensitive material comprising a support and a light-sensitive composition layer provided on the support, said light-sensitive composition layer consisting of a binder, an o-quinonediazide compound as a first component and a basic carbonium dye as a second component, to light to which the o-quinonediazide compound is sensitive, whereby said compound becomes alkali soluble, overall heating the light-sensitive material simultaneously with imagewise exposure or after imagewise exposure to insolubilize the exposed areas, overall exposing the thus-processed material to light to solubilize unexposed areas and then developing with an alkaline developer to provide a negative image by removing alkaline soluble areas of said layer.
Claim 13
Dependent Claim
110 words
An image-forming method which comprises imagewise exposing a light-sensitive material comprising a support and a light-sensitive composition layer provided on the support, said light-sensitive composition layer consisting of a binder, an o-quinonediazide compound as a first component and a basic carbonium dye as a second component, to light to which the o-quinonediazide compound is sensitive, whereby said compound becomes alkali soluble, overall heating the light-sensitive material simultaneously with imagewise exposure or after imagewise exposure to insolubilize the exposed areas, overall exposing the thus-processed material to light to solubilize unexposed areas and then developing with an alkaline developer to provide a negative image by removing alkaline soluble areas of said layer.
Claim 14
Dependent Claim
90 words
An image-forming method which comprises overall exposing a light-sensitive material comprising a support and a light-sensitive composition layer provided on the support, said light-sensitive composition layer containing an o-quinonediazide compound as a first component and a basic carbonium dye as a second component, to light to which the o-quinonediazide compound is sensitive, imagewise irradiating the light-sensitive materials with a high intensity energy beam after the overall exposure, and then dissolving the light-sensitive composition layer at areas not irradiated by the high intensity energy beam by use of an alkaline developer.
Claim 15
Dependent Claim
90 words
An image-forming method which comprises overall exposing a light-sensitive material comprising a support and a light-sensitive composition layer provided on the support, said light-sensitive composition layer containing an o-quinonediazide compound as a first component and a basic carbonium dye as a second component, to light to which the o-quinonediazide compound is sensitive, imagewise irradiating the light-sensitive materials with a high intensity energy beam after the overall exposure, and then dissolving the light-sensitive composition layer at areas not irradiated by the high intensity energy beam by use of an alkaline developer.
Claim 16
Dependent Claim
17 words
An image-forming method as in claim 12, wherein the high intensity energy beam is a laser beam.
Claim 17
Dependent Claim
17 words
An image-forming method as in claim 12, wherein the high intensity energy beam is an electron beam.
Claim 18
Dependent Claim
31 words
An image-forming method as in claim 12, 13, or 14, wherein the basic carbonium dye is a diphenylmethane dye, a triphenylmethane dye, a xanthene dye, an acridine dye, or combinations thereof.
Claim 19
Dependent Claim
31 words
An image-forming method as in claim 15, wherein the amount of basic carbonium dye is from about 0.005 to 1 part by weight per part by weight of the o-quinonediazide compound.
Claim 20
Dependent Claim
31 words
An image-forming method as in claim 16, wherein the amount of basic carbonium dye is from about 0.01 to 1 part by weight per part by weight of the o-quinonediazide compound.
Claim 21
Dependent Claim
19 words
The image forming method as in claim 12, wherein said o-quinonediazide compound is an o-benzoquinonediazide or an o-naphthoquinone diazide.
Claim 22
Dependent Claim
24 words
The image forming method as in claim 12, wherein said o-quinonediazide compound is a sulfonic acid ester of a hydroxyl compound and an o-quinonediazide.
Claim 23
Dependent Claim
17 words
The image forming method as in claim 12, wherein said basic carbonium dye is a diphenylmethane dye.
Claim 24
Dependent Claim
17 words
The image forming method as in claim 12, wherein said basic carbonium dye is a triphenylmethane dye.
Claim 25
Dependent Claim
17 words
The image forming method as in claim 12, wherein said basic carbonium dye is a xanthene dye.
Claim 26
Dependent Claim
17 words
The image forming method as in claim 12, wherein said basic carbonium dye is an acridine dye.
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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) | 1985-10-25 | 1986-04-26 | 1986-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-25 | 1990-04-26 | 1990-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-25 | 1994-04-26 | 1994-10-26 | $7700.00 | Window Closed / Lapsed |