Book contents
- Frontmatter
- Contents
- EDITOR'S INTRODUCTION
- PART I DRAWING, TRANSFERRING AND PRINTING
- CHAPTER I Introductory
- CHAPTER II Mechanical and Chemical Principles of some of the Lithographic Materials used in Printing
- CHAPTER III Instruments, Tools, and Appliances used in Drawing and Writing
- CHAPTER IV Instruments, Tools, and Apparatus used in Printing
- CHAPTER V Accessories to the Lithographic Printing-press
- CHAPTER VI Grinding and Polishing Stones
- CHAPTER VII Lithography on Paper or Transfer Lithography
- CHAPTER VIII Ink Writing and Drawing on Stone
- CHAPTER IX Chalk Drawing on Stone
- CHAPTER X Etching Chalk Drawings on Stone
- CHAPTER XI Taking Impressions for Transferring
- CHAPTER XII Transferring
- CHAPTER XIII Proving and Printing
- CHAPTER XIV Printing (continued)
- CHAPTER XV Printing (continued)
- CHAPTER XVI Miscellaneous Processe
- CHAPTER XVII Miscellaneous Processes (continued)
- CHAPTER XVIII Engraving on Stone
- CHAPTER XIX Zincography
- CHAPTER XX Chromo-lithography
- CHAPTER XXI Chromo-lithography (continued)
- CHAPTER XXII Chromo-lithography (continued)
- CHAPTER XXIII Chromo-lithography (continued)
- CHAPTER XXIV Photo-lithography
- APPENDIX.—Recipes
- PART II LITHOGRAPHIC MACHINE-PRINTING
- BIBLIOGRAPHY OF LITHOGRAPHY
- INDEX
CHAPTER II - Mechanical and Chemical Principles of some of the Lithographic Materials used in Printing
Published online by Cambridge University Press: 05 July 2011
- Frontmatter
- Contents
- EDITOR'S INTRODUCTION
- PART I DRAWING, TRANSFERRING AND PRINTING
- CHAPTER I Introductory
- CHAPTER II Mechanical and Chemical Principles of some of the Lithographic Materials used in Printing
- CHAPTER III Instruments, Tools, and Appliances used in Drawing and Writing
- CHAPTER IV Instruments, Tools, and Apparatus used in Printing
- CHAPTER V Accessories to the Lithographic Printing-press
- CHAPTER VI Grinding and Polishing Stones
- CHAPTER VII Lithography on Paper or Transfer Lithography
- CHAPTER VIII Ink Writing and Drawing on Stone
- CHAPTER IX Chalk Drawing on Stone
- CHAPTER X Etching Chalk Drawings on Stone
- CHAPTER XI Taking Impressions for Transferring
- CHAPTER XII Transferring
- CHAPTER XIII Proving and Printing
- CHAPTER XIV Printing (continued)
- CHAPTER XV Printing (continued)
- CHAPTER XVI Miscellaneous Processe
- CHAPTER XVII Miscellaneous Processes (continued)
- CHAPTER XVIII Engraving on Stone
- CHAPTER XIX Zincography
- CHAPTER XX Chromo-lithography
- CHAPTER XXI Chromo-lithography (continued)
- CHAPTER XXII Chromo-lithography (continued)
- CHAPTER XXIII Chromo-lithography (continued)
- CHAPTER XXIV Photo-lithography
- APPENDIX.—Recipes
- PART II LITHOGRAPHIC MACHINE-PRINTING
- BIBLIOGRAPHY OF LITHOGRAPHY
- INDEX
Summary
Having referred in the preceding chapter to the principal Lithographic agents—stones, ink, and water, as materials required in lithographic drawing and writing, we now proceed to notice the chief materials used in printing.
11. By Varnish, in Lithography, is understood the vehicle in which pigments are ground to form the printer's ink. It is made by subjecting the best linseed-oil to the continued influence of heat, until it becomes more or less thick and viscid. The heat must be raised until the oil will take fire, and must be kept at that heat until the varnish is brought to the proper consistency. The operation is very dangerous, inasmuch as the flame from the burning oil will sometimes reach a great height, even though the quantity of oil be only a quart or two, and, for that reason, every precaution should be taken in its manufacture.
One reason for making varnish for one's self would be to obtain an article known to be pure, for comparison with that which may be bought, as it is possible to thicken the varnish with resin (as is done with varnish for letter-press ink), instead of producing the viscidity by burning only.
As varnish is an article manufactured on a large scale, there is no difficulty in purchasing it of a quality to answer the lithographer's purpose. It is made of several degrees of strength, known in the trade by the terms thin, tinting, medium, and thick.
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- The Grammar of LithographyA Practical Guide for the Artist and Printer in Commercial and Artistic Lithography, and Chromolithography, Zincography, Photo-lithography, and Lithographic Machine Printing, pp. 8 - 14Publisher: Cambridge University PressPrint publication year: 2010