GB443321A - Improvements in and relating to the photographic production of printing plates - Google Patents
Improvements in and relating to the photographic production of printing platesInfo
- Publication number
- GB443321A GB443321A GB1322435A GB1322435A GB443321A GB 443321 A GB443321 A GB 443321A GB 1322435 A GB1322435 A GB 1322435A GB 1322435 A GB1322435 A GB 1322435A GB 443321 A GB443321 A GB 443321A
- Authority
- GB
- United Kingdom
- Prior art keywords
- negative
- positive
- printing
- negatives
- areas
- 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
- 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
- G03F3/04—Colour separation; Correction of tonal value by photographic means
- G03F3/06—Colour separation; Correction of tonal value by photographic means by masking
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Preparing Plates And Mask In Photomechanical Process (AREA)
Abstract
443,321. Photo-mechanical printing- surfaces. FEENY, V. F., 73A, Queen Victoria Street, London.-(Miehle Printing Press & Manufacturing Co. ; 14th Street, Chicago, U.S.A.) May 3, 1935, No. 13224. [Class 98 (ii)] From an original negative or one of a set of colour-record negatives, a positive is printed and all areas other than white are blocked out. From this a negative is made in which the white areas are opaque and all other areas transparent and this is superposed on the original negative or each negative of the set of colour-record negatives, the combination being used tc print a positive having transparent white areas and from which the printing surface is produced. A half-tone screen may be used when printing from the combined negatives or a half-tone negative may be made from the final positive. Fig. 1 shows the original negative; Fig. 3 a contact positive therefrom in which all the tones except white have been blocked out ; Fig. 4 shows a contact negative from this positive ; and Fig. 5 the combination of the negatives of Figs. 1 and 4 from which the final positive is produced by contact or projection printing.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1322435A GB443321A (en) | 1935-05-03 | 1935-05-03 | Improvements in and relating to the photographic production of printing plates |
| DEI52267D DE654096C (en) | 1935-05-03 | 1935-05-07 | Process for the production of printing plates |
| NL73476A NL42532C (en) | 1935-05-03 | 1935-05-07 | |
| FR790015D FR790015A (en) | 1935-05-03 | 1935-05-14 | Improvements in the production of printing plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1322435A GB443321A (en) | 1935-05-03 | 1935-05-03 | Improvements in and relating to the photographic production of printing plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB443321A true GB443321A (en) | 1936-02-26 |
Family
ID=10019076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1322435A Expired GB443321A (en) | 1935-05-03 | 1935-05-03 | Improvements in and relating to the photographic production of printing plates |
Country Status (3)
| Country | Link |
|---|---|
| FR (1) | FR790015A (en) |
| GB (1) | GB443321A (en) |
| NL (1) | NL42532C (en) |
-
1935
- 1935-05-03 GB GB1322435A patent/GB443321A/en not_active Expired
- 1935-05-07 NL NL73476A patent/NL42532C/xx active
- 1935-05-14 FR FR790015D patent/FR790015A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL42532C (en) | 1938-02-15 |
| FR790015A (en) | 1935-11-12 |
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