GB689338A - Improvements in an etch for making lithographic printing plates - Google Patents
Improvements in an etch for making lithographic printing platesInfo
- Publication number
- GB689338A GB689338A GB30214/50A GB3021450A GB689338A GB 689338 A GB689338 A GB 689338A GB 30214/50 A GB30214/50 A GB 30214/50A GB 3021450 A GB3021450 A GB 3021450A GB 689338 A GB689338 A GB 689338A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chloride
- acid
- calcium
- stannic
- chromic
- 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
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 abstract 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 abstract 5
- 239000000243 solution Substances 0.000 abstract 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 abstract 3
- 239000001110 calcium chloride Substances 0.000 abstract 3
- 229910001628 calcium chloride Inorganic materials 0.000 abstract 3
- 229910001629 magnesium chloride Inorganic materials 0.000 abstract 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 abstract 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 abstract 2
- AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical compound OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 abstract 2
- 239000002253 acid Substances 0.000 abstract 2
- 229960000359 chromic chloride Drugs 0.000 abstract 2
- LJAOOBNHPFKCDR-UHFFFAOYSA-K chromium(3+) trichloride hexahydrate Chemical compound O.O.O.O.O.O.[Cl-].[Cl-].[Cl-].[Cr+3] LJAOOBNHPFKCDR-UHFFFAOYSA-K 0.000 abstract 2
- 239000011636 chromium(III) chloride Substances 0.000 abstract 2
- 235000007831 chromium(III) chloride Nutrition 0.000 abstract 2
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Substances OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 abstract 2
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 abstract 2
- 239000007788 liquid Substances 0.000 abstract 2
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 abstract 2
- 150000003839 salts Chemical class 0.000 abstract 2
- PXRKCOCTEMYUEG-UHFFFAOYSA-N 5-aminoisoindole-1,3-dione Chemical compound NC1=CC=C2C(=O)NC(=O)C2=C1 PXRKCOCTEMYUEG-UHFFFAOYSA-N 0.000 abstract 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 abstract 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 abstract 1
- 229920000084 Gum arabic Polymers 0.000 abstract 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 abstract 1
- 241000978776 Senegalia senegal Species 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 abstract 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 abstract 1
- 229910021627 Tin(IV) chloride Inorganic materials 0.000 abstract 1
- 239000000205 acacia gum Substances 0.000 abstract 1
- 235000010489 acacia gum Nutrition 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 239000011651 chromium Substances 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 238000005530 etching Methods 0.000 abstract 1
- 229910017604 nitric acid Inorganic materials 0.000 abstract 1
- 235000006408 oxalic acid Nutrition 0.000 abstract 1
- 229920006395 saturated elastomer Polymers 0.000 abstract 1
- 239000011975 tartaric acid Substances 0.000 abstract 1
- 235000002906 tartaric acid Nutrition 0.000 abstract 1
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
- B41N1/00—Printing plates or foils; Materials therefor
- B41N1/04—Printing plates or foils; Materials therefor metallic
- B41N1/08—Printing plates or foils; Materials therefor metallic for lithographic printing
- B41N1/10—Printing plates or foils; Materials therefor metallic for lithographic printing multiple
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
- C23F1/00—Etching metallic material by chemical means
- C23F1/10—Etching compositions
- C23F1/14—Aqueous compositions
- C23F1/16—Acidic compositions
- C23F1/26—Acidic compositions for etching refractory metals
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Printing Plates And Materials Therefor (AREA)
- ing And Chemical Polishing (AREA)
Abstract
689,338. Etching. INTERCHEMICAL CORPORATION. Dec. 11, 1950 [July 20, 1950], No. 30214/50. Class 100(ii) An etch for use in making lithographic printing plates which will dissolve chromium without attacking copper, and which has only a slow action on a light-hardened bichromated gum arabic film, consists of a concentrated aqueous solution of calcium or magnesium chloride, a minor proportion of a concentrated solution of a stannic or chromic salt, and a small amount of acid sufficient to reduce the pH to below 2.0. The stannic or chromic salt is preferably the chloride. The acid is present to the extent of about 2 liquid ounces per gallon of the calcium or magnesium chloride solution, and may be hydrochloric, nitric, sulphuric, acetic, phosphoric, lactic, hydroxy-acetic, citric, oxalic or tartaric acid or resorcinol may be used. Example 1. 16 liquid oz. 41.5 degrees Be<SP>1</SP> calcium chloride solution (79 per cent CaCl 2 .6H 2 O), 4 oz. 45 degrees Be<SP>1</SP> chromic chloride solution (saturated), oz. concentrated nitric or hydrochloric acid. Example 2. The same as example 1 with nitric acid, using magnesium chloride instead of calcium chloride. Example 3. The same as example 1 with hydrochloric acid, but using 65 degrees Be<SP>1</SP> stannic chloride solution (64 per cent SnCl 4 ) instead of chromic chloride. Specification 640,655 is referred to. Reference has been directed by the Comptroller to Specification 483,349.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US175030A US2572228A (en) | 1950-07-20 | 1950-07-20 | Etch for offset plate making |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB689338A true GB689338A (en) | 1953-03-25 |
Family
ID=22638545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB30214/50A Expired GB689338A (en) | 1950-07-20 | 1950-12-11 | Improvements in an etch for making lithographic printing plates |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2572228A (en) |
| GB (1) | GB689338A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2687345A (en) * | 1950-11-22 | 1954-08-24 | Printing Dev Inc | Etching composition for lithographic plates |
| US2904414A (en) * | 1954-08-04 | 1959-09-15 | Allied Res Products Inc | Formulation for producing a protective bright chemically polished surface on zinc and cadmium |
| BE544257A (en) * | 1955-01-14 | |||
| US3052582A (en) * | 1959-10-05 | 1962-09-04 | Boeing Co | Process of chemical milling and acid aqueous bath used therefor |
| US3061494A (en) * | 1959-10-05 | 1962-10-30 | Boeing Co | Process of chemical milling and acid aqueous bath used therefor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2220252A (en) * | 1938-06-10 | 1940-11-05 | Addressograph Multigraph | Method of preparing planographic plates |
| US2270712A (en) * | 1940-04-12 | 1942-01-20 | Harris Seybold Potter Co | Etching lithographic plates |
-
1950
- 1950-07-20 US US175030A patent/US2572228A/en not_active Expired - Lifetime
- 1950-12-11 GB GB30214/50A patent/GB689338A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2572228A (en) | 1951-10-23 |
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