GB1317874A - Process for the manufacture of a screened photographic colour copy which simulates a multi-colour print - Google Patents
Process for the manufacture of a screened photographic colour copy which simulates a multi-colour printInfo
- Publication number
- GB1317874A GB1317874A GB3428571A GB3428571A GB1317874A GB 1317874 A GB1317874 A GB 1317874A GB 3428571 A GB3428571 A GB 3428571A GB 3428571 A GB3428571 A GB 3428571A GB 1317874 A GB1317874 A GB 1317874A
- Authority
- GB
- United Kingdom
- Prior art keywords
- colour
- negative
- screened
- copy
- photographic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
- G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
- G03C7/28—Silver dye bleach processes; Materials therefor; Preparing or processing such materials
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F3/00—Colour separation; Correction of tonal value
- G03F3/10—Checking the colour or tonal value of separation negatives or positives
- G03F3/107—Checking the colour or tonal value of separation negatives or positives using silver halide photosensitive materials
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Printing Methods (AREA)
Abstract
1317874 Screened, photographic colour copy which simulates a multi-colour print CIBAGEIGY A G 21 July 1971 [24 July 1970] 34285/71 Heading G2C A screened or half-tone photographic colour copy which simulates a multi-colour print is prepared by successively exposing a lightsensitive negative-working colour photographic material to screened colour separation negatives of the original, which correspond to the colours blue, green and red through a colour filter of the same colour which was used to produce the colour separation negative, and processing to give a screened, positive direct-viewing colour copy containing colour images in yellow, magenta and cyan dyes respectively, the process being characterized in that the colour photographic material is subjected to at least one additional exposure to one of the screened colour separation negatives through a colour filter of a different colour from that used to produce the colour separation negative. The colour photographic material may be additionally exposed to white light or blue, green and red lights through a black and white negative of the original. The ratio of the exposure times of the or each additional exposure to the corresponding successive exposure(s) of the colour separations exposed with copying light of the same colour may be between 1:10 and 1:1. The negative-working photographic material may be a negative-working silver dye-bleach material (see Examples 1 and 3) or a negative-working chromogenic colour material (see Example 2).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1129270A CH544954A (en) | 1970-07-24 | 1970-07-24 | Process for the production of a screened photographic color copy simulating a multicolor print |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1317874A true GB1317874A (en) | 1973-05-23 |
Family
ID=4372031
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3428571A Expired GB1317874A (en) | 1970-07-24 | 1971-07-21 | Process for the manufacture of a screened photographic colour copy which simulates a multi-colour print |
Country Status (8)
Country | Link |
---|---|
US (1) | US3772015A (en) |
BE (1) | BE770408A (en) |
CA (1) | CA959321A (en) |
CH (1) | CH544954A (en) |
DE (1) | DE2136065A1 (en) |
FR (1) | FR2103242A5 (en) |
GB (1) | GB1317874A (en) |
NL (1) | NL7110210A (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA1147188A (en) * | 1979-01-30 | 1983-05-31 | Richard D. Ingalls | Pre-press color proofing by light exposure to photographic media |
EP0219560B1 (en) * | 1982-02-11 | 1991-06-05 | James Thomas Morgan | Process for producing pre-press color proofs |
US4553835A (en) * | 1982-02-11 | 1985-11-19 | Morgan Jr James T | Process for producing pre-press color proofs |
EP0134396A1 (en) * | 1983-08-17 | 1985-03-20 | Kabushiki Kaisha Ueshina Bunmeido | Method and apparatus for proofing multicolor prints |
GB8609137D0 (en) * | 1986-04-15 | 1986-05-21 | Minnesota Mining & Mfg | Imaging system |
US5360688A (en) * | 1990-09-05 | 1994-11-01 | Hoechst Celanese Corporation | Composite black and white substrate for color proofing films |
CA2050636A1 (en) * | 1990-09-05 | 1992-03-06 | Robert J. Von Trebra | Composite black and white substrate for color proofing film |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH501250A (en) * | 1968-09-12 | 1970-12-31 | Ciba Geigy Ag | Process for the production of a photographic copy simulating a multicolor print |
-
1970
- 1970-07-24 CH CH1129270A patent/CH544954A/en not_active IP Right Cessation
-
1971
- 1971-07-16 US US00163496A patent/US3772015A/en not_active Expired - Lifetime
- 1971-07-19 CA CA118,507A patent/CA959321A/en not_active Expired
- 1971-07-19 DE DE19712136065 patent/DE2136065A1/en active Pending
- 1971-07-21 GB GB3428571A patent/GB1317874A/en not_active Expired
- 1971-07-22 FR FR7126914A patent/FR2103242A5/fr not_active Expired
- 1971-07-23 BE BE770408A patent/BE770408A/en unknown
- 1971-07-23 NL NL7110210A patent/NL7110210A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
CA959321A (en) | 1974-12-17 |
CH544954A (en) | 1973-11-30 |
FR2103242A5 (en) | 1972-04-07 |
NL7110210A (en) | 1972-01-26 |
DE2136065A1 (en) | 1972-01-27 |
US3772015A (en) | 1973-11-13 |
BE770408A (en) | 1972-01-24 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |