US805031A - Process for preparing zinc and aluminium plates for printing purposes. - Google Patents
Process for preparing zinc and aluminium plates for printing purposes. Download PDFInfo
- Publication number
- US805031A US805031A US23102604A US1904231026A US805031A US 805031 A US805031 A US 805031A US 23102604 A US23102604 A US 23102604A US 1904231026 A US1904231026 A US 1904231026A US 805031 A US805031 A US 805031A
- Authority
- US
- United States
- Prior art keywords
- aluminium plates
- printing purposes
- preparing zinc
- plate
- zinc
- 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 - Lifetime
Links
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title description 7
- 229910052782 aluminium Inorganic materials 0.000 title description 7
- 239000004411 aluminium Substances 0.000 title description 7
- 239000011701 zinc Substances 0.000 title description 7
- 229910052725 zinc Inorganic materials 0.000 title description 7
- 238000004519 manufacturing process Methods 0.000 title description 6
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 9
- 238000005530 etching Methods 0.000 description 7
- 239000000243 solution Substances 0.000 description 6
- 239000002253 acid Substances 0.000 description 4
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 229920000084 Gum arabic Polymers 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 241000978776 Senegalia senegal Species 0.000 description 2
- 239000000205 acacia gum Substances 0.000 description 2
- 235000010489 acacia gum Nutrition 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
- B41C1/00—Forme preparation
- B41C1/10—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme
- B41C1/1066—Forme preparation for lithographic printing; Master sheets for transferring a lithographic image to the forme by spraying with powders, by using a nozzle, e.g. an ink jet system, by fusing a previously coated powder, e.g. with a laser
Definitions
- the present invention consists of a process for preparing zinc and aluminium plates for printing purposes.
- the zinc and aluminium plates employed are first freed from grease in the known manner by means of a diluted solution of nitric or hydrochloric acid, (four parts water and one part acid,) and then they are more or less roughened, according to the purpose for which they are required, by means of pumicestone dust or sand blowing device. The plate is then washed with clean water and dried, then rubbed over with acetic acid in order to remove the acid from it. The plate is now in condition to receive the lithographic ink or fatty colors. The drawing is made with lithographic ink or'chalk or by reproduction ers press.
- the effect of the etching solution consisting of the above-mentioned ingredients is to prevent the spreading of the ink or color, while the surface of the plate not covered by the drawing will not retain any of the ink or color when the same is imparted to the plate by the ink or color rolls.
- etching solution avoids faulty etching, and thus entirely prevents the occurrence of tone or shades on the plate, which is of great advantage, sincezthese defects occur very readily with etching solutions containing phosphoric acid and other acids having analogous eiiects.
- the etching solution should contain about equal parts of the oxalate and gum.
- a process for preparing zinc and aluminium plates for printing purposes which consists in rubbing over the plate with acetic acid before the drawing or the like is produced thereon and etching subsequently, after the drawing or the like has been produced, with a solution of saturated acid oxalate of potassium and gum-arabic.
- a process for preparing zinc and aluminium plates for printing purposes which consists in rubbing over the plate with acetic acid before the drawing or the like is applied, and after the drawing or the like has been produced etching with a saturated solution consisting of a mixture about equal parts ofacid oxalate of potassium and gum-arabic substantially as described.
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Printing Plates And Materials Therefor (AREA)
Description
UNITED STATES ERNST OTTO SOHMIEL,
V PATENT OFFICE.
OF LEIPSIO, GERMANY.
PROCESS FOR PREPARING ZINC AND ALUMINIUM PLATES FOR PRINTING PURPOSES.
Specification of Letters Patent.
Patented Nov. 21, 1905.
Application filed November 1, 1904. Serial No. 231,026.
1'0 all whom, it may concern.-
Be it known that I, ERNST OTTo SoHMinL, a citizen of the German Empire, and a resident of Leipsic, Saxony, Germany, have invented a useful and Improved Process for Preparing Zinc and Aluminium Plates for Printing Purposes, of which the following is a full, clear, and exact description. I
The present invention consists of a process for preparing zinc and aluminium plates for printing purposes.
The zinc and aluminium plates employed are first freed from grease in the known manner by means of a diluted solution of nitric or hydrochloric acid, (four parts water and one part acid,) and then they are more or less roughened, according to the purpose for which they are required, by means of pumicestone dust or sand blowing device. The plate is then washed with clean water and dried, then rubbed over with acetic acid in order to remove the acid from it. The plate is now in condition to receive the lithographic ink or fatty colors. The drawing is made with lithographic ink or'chalk or by reproduction ers press.
The effect of the etching solution consisting of the above-mentioned ingredients is to prevent the spreading of the ink or color, while the surface of the plate not covered by the drawing will not retain any of the ink or color when the same is imparted to the plate by the ink or color rolls.
An important advantage of the present etching solution is that it avoids faulty etching, and thus entirely prevents the occurrence of tone or shades on the plate, which is of great advantage, sincezthese defects occur very readily with etching solutions containing phosphoric acid and other acids having analogous eiiects. The etching solution should contain about equal parts of the oxalate and gum.
I claim as my invention 1. A process for preparing zinc and aluminium plates for printing purposes, which consists in rubbing over the plate with acetic acid before the drawing or the like is produced thereon and etching subsequently, after the drawing or the like has been produced, with a solution of saturated acid oxalate of potassium and gum-arabic.
2. A process for preparing zinc and aluminium plates for printing purposes, which consists in rubbing over the plate with acetic acid before the drawing or the like is applied, and after the drawing or the like has been produced etching with a saturated solution consisting of a mixture about equal parts ofacid oxalate of potassium and gum-arabic substantially as described.
In testimony whereofl affix my signature in the presence of two witnesses. ERNST OTTO SOHMIELH Witnesses:
MORITZ SPREER, RUDOLPH FRIoKn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US23102604A US805031A (en) | 1904-11-01 | 1904-11-01 | Process for preparing zinc and aluminium plates for printing purposes. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US23102604A US805031A (en) | 1904-11-01 | 1904-11-01 | Process for preparing zinc and aluminium plates for printing purposes. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US805031A true US805031A (en) | 1905-11-21 |
Family
ID=2873514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US23102604A Expired - Lifetime US805031A (en) | 1904-11-01 | 1904-11-01 | Process for preparing zinc and aluminium plates for printing purposes. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US805031A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3489561A (en) * | 1965-08-17 | 1970-01-13 | Ball Brothers Co Inc | Lithographic plate cleaning and desensitizing solution |
-
1904
- 1904-11-01 US US23102604A patent/US805031A/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3489561A (en) * | 1965-08-17 | 1970-01-13 | Ball Brothers Co Inc | Lithographic plate cleaning and desensitizing solution |
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