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    Photogravure
    Photogravure
    Photogravure
    Ebook179 pages53 minutes

    Photogravure

    By Henry R. Blaney

    ()

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    About this ebook

    DigiCat Publishing presents to you this special edition of "Photogravure" by Henry R. Blaney. DigiCat Publishing considers every written word to be a legacy of humankind. Every DigiCat book has been carefully reproduced for republishing in a new modern format. The books are available in print, as well as ebooks. DigiCat hopes you will treat this work with the acknowledgment and passion it deserves as a classic of world literature.
    LanguageEnglish
    PublisherDigiCat
    Release dateAug 1, 2022
    ISBN8596547139614
    Photogravure

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      Book preview

      Photogravure - Henry R. Blaney

      Henry R. Blaney

      Photogravure

      EAN 8596547139614

      DigiCat, 2022

      Contact: DigiCat@okpublishing.info

      Table of Contents

      PHOTOGRAVURE.

      BY HENRY R. BLANEY.

      INTRODUCTION.

      CHAPTER I.

      The Negative.

      Solution A.

      Solution B.

      Woodbury's Formula.

      Obernetter Process.

      CHAPTER II.

      The Transparency.

      Eikonogen and Hydrochinon Developer.

      Carbutt's New Acid Fixing and Clearing Bath.

      CHAPTER III.

      The Carbon Tissue—(Sensitizing and Exposure) .

      Sensitizing the Tissue.

      CHAPTER IV.

      The Cleaning and Graining of the Copper Plate, and Grade of Copper Necessary, and Where and How to Buy It at Reasonable Prices.

      II.— Graining the Copper Plate.

      CHAPTER V.

      Development of Negative Resist on the Copper Plate, and Preparation for Biting with Acid through the Gelatine.

      CHAPTER VI.

      The Acid Baths.—How to Make Them and Method of Biting through the Gelatine.

      Formula for Acid Baths.

      Biting Bath.

      Another Formula.

      Average Bitings.

      CHAPTER VII.

      Cleaning and Polishing the Plate, with Tools Necessary for Retouching.

      CHAPTER VIII.

      Printing the Plate and Steel Facing.

      Steel Facing.

      (Obernetter's.)

      CHAPTER IX.

      Materials Necessary for Photogravure, and List of Firms Supplying them.

      Materials.

      List of Firms Supplying Materials for Photogravure.

      CHAPTER X.

      Books and Articles on Photogravure. Published from 1888 to 1893.

      Merck's Pyrogallic Acid

      Scovill & Adams Photo-Engraving Materials,

      Copying Cameras

      PHOTO-ENGRAVING.

      The Scovill Enlarging, Reducing and Copying Cameras.

      SCOVILL Copying Cameras.

      The S. & A. Photo-Engravers' Adjustable Screen Plate Holder.

      The Scovill Printing Frames for Photo-Engraving.

      IN OLDEN TIMES

      Process Engravers.

      · · Publications · ·

      SUN AND SHADE.

      ALFRED SELLERS & CO.

      Printing Frames, Etching Tubs, Etching Powders, Rollers, Etc.

      AMATEURS!

      Photogravure Worker.

      NO?

      BETTER DO SO AT ONCE.

      ZEISS-ANASTIGMAT LENSES

      BAUSCH & LOMB OPTICAL CO.

      The Scovill & Adams Co. 423 Broome Street, New York.

      = IMPORTANT =

      Send orders to your Dealers, or to The Scovill & Adams Co.,                New York.

      See that you get the Genuine Schering's. Excelled by none.

      Send Orders to your Dealers, or to THE SCOVILL & ADAMS COMPANY, NEW YORK.

      THE SCOVILL & ADAMS COMPANY,

      423 Broome Street, New York City.

      E. EDWARDS PHOTO. N.Y PHOTOGRAVURE CO.

      A ROADSIDE COTTAGE IN THE CATSKILLS.

      A Roadside Cottage in the Catskills

      PHOTOGRAVURE.

      Table of Contents

      BY

      HENRY R. BLANEY.

      Table of Contents

      With Introduction and Additions by the Editor.

      NEW YORK:

      THE SCOVILL & ADAMS COMPANY.

      1895.

      Copyright, 1895,

      The Scovill & Adams Company.

      INTRODUCTION.

      Table of Contents

      About the year 1820 Nicéphore Niepce made the discovery that bitumen, under certain conditions, was sensitive to light. He dissolved it in oil of lavender, and spread a thin layer of the solution thus obtained upon stone. This he exposed under a drawing (making the paper transparent by waxing), and after sufficient exposure, oil of lavender was poured on. Those portions of the bitumen which had been exposed to the action of the light had become insoluble, and so remained while the lines which had been protected by the drawing were dissolved away. By treating the stone with an acid these lines were bitten or eroded, and could be printed from. Niepce afterward employed metal plates instead of the stone.

      Here we have the foundation for a number of printing processes of the present day, including photogravure.

      For many years, however, progress in processes for intaglio printing was very slow. In 1852 Talbot introduced a process termed photoglyphy, and in 1854 Paul Pretsch, of Vienna, patented a process which he termed photogalvanography. In 1870 the late Walter B. Woodbury, inventor of the Woodburytype process, suggested to M. Rousselon, of M. M. Goupil & Co.,[A] a process which he had discovered, and which he describes[B] as follows:

      "The method, as perhaps many of your readers know, is based on the fact that some pigments used in carbon printing have an unpleasant habit of granulating when mixed with gelatine and bichromate, destructive to their use in carbon printing and Woodburytype, but bearing the essence of success in an engraving process where grain is necessary. The origin of this method was simply owing to my getting some bad reliefs, in which this effect was first noticed. Out of this arose the photo-engraving process which, as I said before, is now claimed as the invention of a Frenchman. But I

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