US173381A - Improvement in photo-chemical printing - Google Patents
Improvement in photo-chemical printing Download PDFInfo
- Publication number
- US173381A US173381A US173381DA US173381A US 173381 A US173381 A US 173381A US 173381D A US173381D A US 173381DA US 173381 A US173381 A US 173381A
- Authority
- US
- United States
- Prior art keywords
- solution
- paper
- photo
- improvement
- water
- 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
- 239000000126 substance Substances 0.000 title description 4
- MUBZPKHOEPUJKR-UHFFFAOYSA-N oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 28
- 239000011780 sodium chloride Substances 0.000 description 28
- 150000003839 salts Chemical class 0.000 description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 18
- 239000000463 material Substances 0.000 description 10
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical class [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 8
- VEPSWGHMGZQCIN-UHFFFAOYSA-H Ferric oxalate Chemical compound [Fe+3].[Fe+3].[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O VEPSWGHMGZQCIN-UHFFFAOYSA-H 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 150000002739 metals Chemical class 0.000 description 6
- 235000006408 oxalic acid Nutrition 0.000 description 6
- KEAYESYHFKHZAL-UHFFFAOYSA-N sodium Chemical compound [Na] KEAYESYHFKHZAL-UHFFFAOYSA-N 0.000 description 6
- 229910052708 sodium Inorganic materials 0.000 description 6
- 239000011734 sodium Substances 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-M chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 4
- -1 compound salts Chemical class 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229910052697 platinum Inorganic materials 0.000 description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 4
- 229910052700 potassium Inorganic materials 0.000 description 4
- 239000011591 potassium Substances 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 239000002023 wood Substances 0.000 description 4
- KBPZVLXARDTGGD-ZVGUSBNCSA-N (2R,3R)-2,3-dihydroxybutanedioic acid;iron Chemical compound [Fe].OC(=O)[C@H](O)[C@@H](O)C(O)=O KBPZVLXARDTGGD-ZVGUSBNCSA-N 0.000 description 2
- SQGYOTSLMSWVJD-UHFFFAOYSA-N Silver nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 description 2
- AKHNMLFCWUSKQB-UHFFFAOYSA-L Sodium thiosulphate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=S AKHNMLFCWUSKQB-UHFFFAOYSA-L 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium Chemical class [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 2
- 229910052741 iridium Inorganic materials 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000001264 neutralization Effects 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 235000019345 sodium thiosulphate Nutrition 0.000 description 2
- SVZRVTAEYVVVPM-UHFFFAOYSA-J tetrachloroplatinate(2-) Chemical compound Cl[Pt-2](Cl)(Cl)Cl SVZRVTAEYVVVPM-UHFFFAOYSA-J 0.000 description 2
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
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
- G03C5/29—Development processes or agents therefor
- G03C5/305—Additives other than developers
Definitions
- This invention has for its object improvements in the chemical treatment of the surfaces of paper, wood, and other suitable materials employed for receiving images from photographic negatives, or from similar objects that may be interposed between the light and such prepared paper or other surface.
- I proceed as follows: I coat paper with a solution of chloroplatinite of potassium containing about ten grains of the salt to one ounce of water. After drying the paper I coat it with a solution of the nitrate of lead, (using about forty-grains of this salt to one ounce of water,) or with nitrate of silver, (eight grains of silver to one ounce of water,) and dry it again. I then coat it with a solution composed of ferric oxalate, about sixty grains to one ounce of water, with as little oxalic acid as is sufficient to render the ferric oxalate soluble. I then dry. the paper and expose it to light under a negative. On removing it from the negative I float it, face downward, on a hot solution of potassic oxalate.
- I then wash it in a weak solution of oxalic acid, then in plain water, and then immerse it in a solution of hyposulphite of soda, chloride of sodium, or solution of ammonia, or other liquid suitable for removing the salts remaining in the paper; and I prefer to finish by washing the latter in plain water.
- I may modify the above process as follows: I coat the paper with a solution of platinic bromide, (about twelve grains to one ounce of water,) and then dry it. I then coat the paper with a strong solution of ferric tartrate and dry it. I next expose this paper to light under a negative, and afterward float it, face downward, on a hot solution of potassic oxalate. I thenimmerse it in a weak solution of oxalic acid, and finish by washing it i used for coating the paper or other material before their application to the same.
- ferric and other salt or salts one of which must be the salt of the metal in which the picture is to be produced, substantially as described.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Color Printing (AREA)
Description
UNITED S A s PATEN OFFIcn.
WILLIAM WILLIS, JR., or BIRMINGHAM, ENGLAND.
IMPROVEMENT m PHOTO-CHEMICAL PRINTING.
Specification forming part of Letters Patent No. 173,381, dated February 8, 1876; application filed November 20, 1875.
d To all whom it may concern:
Be it known that I, WILLIAM WILLIS, J r., of Birmingham, England, engineer, have invented Improvements in Photo -Ghemical Printing, of which the following is a specification:
This invention has for its object improvements in the chemical treatment of the surfaces of paper, wood, and other suitable materials employed for receiving images from photographic negatives, or from similar objects that may be interposed between the light and such prepared paper or other surface.
For this purpose, according to my invention,,1 apply to surfaces of paper, wood, and other suitable materials solutions or coatings of simple or compound salts of platinum, iridium, or'gold, or a mixture of such salts. In
all cases I must use for these coatings the salt or salts of the metal or metals in which the picture is to be produced. After the solution or coating has' dried on the paper or .other material I sometimes apply another coating of a salt or salts of other metals. I finally coat the paper or other material with a solution of ferric oxalate or tartra-te, or a combination of these salts with others, and
Y again dry the same. I then expose the coated surface to light, under a photographic negative or other suitable object, till a faint-brown image appears. Aftenthis I apply to the coated surface a solution of the neutral oxalate of potassium or other suitable oxalate, which speedily changes the brown tints to black ones. I then wash the surface thus treated for a short time in a dilute acid, and finally wash it in water; but I sometimes immerse the surface in a solution of chloride of I sodium, or hyposulphite of sodium, or other suitable salt, before giving it. the final wash in water. f
In carrying my invention into practice I proceed as follows: I coat paper with a solution of chloroplatinite of potassium containing about ten grains of the salt to one ounce of water. After drying the paper I coat it with a solution of the nitrate of lead, (using about forty-grains of this salt to one ounce of water,) or with nitrate of silver, (eight grains of silver to one ounce of water,) and dry it again. I then coat it with a solution composed of ferric oxalate, about sixty grains to one ounce of water, with as little oxalic acid as is sufficient to render the ferric oxalate soluble. I then dry. the paper and expose it to light under a negative. On removing it from the negative I float it, face downward, on a hot solution of potassic oxalate.
'I then wash it in a weak solution of oxalic acid, then in plain water, and then immerse it in a solution of hyposulphite of soda, chloride of sodium, or solution of ammonia, or other liquid suitable for removing the salts remaining in the paper; and I prefer to finish by washing the latter in plain water. Or I may modify the above process as follows: I coat the paper with a solution of platinic bromide, (about twelve grains to one ounce of water,) and then dry it. I then coat the paper with a strong solution of ferric tartrate and dry it. I next expose this paper to light under a negative, and afterward float it, face downward, on a hot solution of potassic oxalate. I thenimmerse it in a weak solution of oxalic acid, and finish by washing it i used for coating the paper or other material before their application to the same.
I claim as my invention- In the process of producing on suitable surfaces photographic pictures in platinum, irid-' ium, and other metals,- the application of solutions of potassic, ammonic, or other suitable oxalate to such surfaces after they have been exposed to light under a negative. or
other suitable object, and which surfaces have been coated, previous to their exposure to light, with ferric and other salt or salts, one of which must be the salt of the metal in which the picture is to be produced, substantially as described.
WILLIAM WILLIS, JR. Witnesses:
HY. Jxs. NooNE, JAS. EDWARDS.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US173381A true US173381A (en) | 1876-02-08 |
Family
ID=2242788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US173381D Expired - Lifetime US173381A (en) | Improvement in photo-chemical printing |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US173381A (en) |
-
0
- US US173381D patent/US173381A/en not_active Expired - Lifetime
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