A Poitevin's Process 1870
"I use a paper prepared with iron sesquioxide rendered sensitive to light by tartaric or, better, citric acid in concentrated solution. This paper, after desiccation and exposure to light, possesses the property of reducing the solution of silver... Artigues' Process
The Artigues process, so called, is, without any doubt, the best to be employed for the reproduction of plans and drawings in lines. It is simple, expeditious, and yields black impressions on a very pure white ground which are absolutely permanen... Causes Of Failures
The images are veiled. This defect may result from various causes, viz.: 1st. The stock ferric oxalate solution is impaired by a partial reduction of the ferric salt into ferrous oxalate. The solution should be preserved in an o... Choice Of Paper Sizing
In all the photographic processes by precipitation of metallic oxides the quality of the paper has a great influence on the results. When the paper is not well sized and not well calendered, the sensitizing solution is absorbed, instead of simply ... Cj Burnett's Process 1857
"A capital process for many purposes," says Mr. Burnett, "is to float or steep the paper in a mixed solution of bichromate of potash and sulphate of copper, as for Hunt's chromotype process.(36) I have mixed gelatine, or occasionally grape sugar, ... De La Blanchere's Process 1858
Uranium nitrate 25 parts Distilled water 100 parts Filter the solution and keep it in the dark. The paper should be sized with a gelatine solution at 5 per 100 of water, and, when dry, kept in the dark.(40) It is sensitized by floating fi... Dr Jb Obernetter's Process 1863
Copper chloride 100 parts Ferric chloride, sol. sp. 13 parts gr. 1.5 Hydrochloric acid, conc. 12 parts C. P. Water 1,000 parts Float the paper on this solution for about two minutes and hang it up to dr... Dr Tl Phipson's Process 1861
Take a solution of perchloride of iron and, having precipitated the peroxide with ammonia, collect the precipitate on a filter and wash it with boiling water. Add the precipitate in excess to a warm solution of oxalic acid. A beautiful emerald g... Godefroy's Process 1858
Float the paper upon the following solution for three minutes and hang it up to dry: Uranium nitrate 30 to 60 parts Silver nitrate 8 parts Water 100 parts (39) The sensitiveness increases in proportion to the quantity of ... Graphotypy
This process consists in converting a cliche in half tones into one in lines, which can be directly printed on paper, or impressed, by means of an ink transfer made as explained before, on a stone, or on a zinc or copper plate for etching in relie... Guarbassi's Process 1867
The paper is floated in the dark for four or five minutes on a saturated solution of bichromate of potash. When dry, it is printed a little longer than for silver prints and afterwards floated, face upwards, on a water bath until all the unaltere... H Cooper's Process 1865
PREPARATION OF THE PAPER St. Vincent arrowroot 200 grains Boiling water 10 ounces Crush the arrowroot to fine powder, then rub it to a paste with a little water, and let an assistant pour a few drams of boiling water while you ... Houdoy's Process 1858
The paper is floated upon a lukewarm solution of gelatine at 5:100, and when dry, on a bath of uranium at 10 or 15 per 100 of water. After exposure to the sun the image is developed with a solution of silver nitrate acidified with acetic acid. T... How To Make A Negative Drawing
The drawing paper for designs to be reproduced by the cyantotype and the other processes described in this book should be of a fine texture, free from opacities and very white; and, as the design must serve as a cliche it is a sine qua non that it... L Liesegang's Process 1865
Pour ammonia into a nitrate of uranium solution, wash the precipitate of uranate of ammonia in distilled water, then dissolve in citric acid. Mix this solution of citrate of uranium and a little of a solution of chloride of gold with a paste pre...
• «
• 1
• 2
• »

The Primuline Or Diazotype Process The Black Or Ink Process Ferro-tannate Process The Cuprotype Burnett's Process The Uranotype The Cyanofer Pellet's Process A Poitevin's Process 1870 The Aniline Process The Carbon Process

Preparation Of Red Yellow Or Blue Tissues L Liesegang's Process 1865 Godefroy's Process 1858 X's Process 1865 Secrets Of The Uranotype Tracing Process On Metal H Cooper's Process 1865 How To Make A Negative Drawing Printing On Wood Canvas Opal And Transparencies