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The Chemistry of Hat Manufacturing Lectures Delivered Before the Hat Manufacturers' Association By: Watson Smith (1845-1920) |
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OF HAT MANUFACTURING LECTURES DELIVERED BEFORE THE HAT MANUFACTURERS' ASSOCIATION BY WATSON SMITH, F.C.S., F.I.C. THEN LECTURER IN CHEMICAL TECHNOLOGY IN THE OWENS COLLEGE, MANCHESTER AND LECTURER OF THE VICTORIA UNIVERSITY REVISED AND EDITED BY ALBERT SHONK WITH SIXTEEN ILLUSTRATIONS LONDON SCOTT, GREENWOOD & SON "THE HATTERS' GAZETTE" OFFICES 8 BROADWAY, LUDGATE HILL, E.C. CANADA: THE COPP CLARK CO. LTD., TORONTO UNITED STATES: D. VAN NOSTRAND CO., NEW YORK 1906 [ All rights remain with Scott, Greenwood & Son ] Transcriber's Note: Underscores around words indicates italics while an underscore and curly brackets in an equation indicates a subscript. PREFACE The subject matter in this little book is the substance of a series of Lectures delivered before the Hat Manufacturers' Association in the years 1887 and 1888. About this period, owing to the increasing difficulties of competition with the products of the German Hat Manufacturers, a deputation of Hat Manufacturers in and around Manchester consulted Sir Henry E. Roscoe, F.R.S., then the Professor of Chemistry in the Owens College, Manchester, and he advised the formation of an Association, and the appointment of a Lecturer, who was to make a practical investigation of the art of Hat Manufacturing, and then to deliver a series of lectures on the applications of science to this industry. Sir Henry Roscoe recommended the writer, then the Lecturer on Chemical Technology in the Owens College, as lecturer, and he was accordingly appointed. The lectures were delivered with copious experimental illustrations through two sessions, and during the course a patent by one of the younger members became due, which proved to contain the solution of the chief difficulty of the British felt hat manufacturer (see pages 66 68). This remarkable coincidence served to give especial stress to the wisdom of the counsel of Sir Henry Roscoe, whose response to the appeal of the members of the deputation of 1887 was at once to point them to scientific light and training as their only resource. In a letter recently received from Sir Henry (1906), he writes: "I agree with you that this is a good instance of the direct money value of scientific training, and in these days of 'protection' and similar subterfuges, it is not amiss to emphasise the fact." It is thus gratifying to the writer to think that the lectures have had some influence on the remarkable progress which the British Hat Industry has made in the twenty years that have elapsed since their delivery. These lectures were in part printed and published in the Hatters' Gazette , and in part in newspapers of Manchester and Stockport, and they have here been compiled and edited, and the necessary illustrations added, etc., by Mr. Albert Shonk, to whom I would express my best thanks. WATSON SMITH. LONDON, April 1906. CONTENTS LECTURE PAGE I. TEXTILE FIBRES, PRINCIPALLY WOOL, FUR, AND HAIR 1 II. TEXTILE FIBRES, PRINCIPALLY WOOL, FUR, AND HAIR continued 18 III. WATER: ITS CHEMISTRY AND PROPERTIES; IMPURITIES AND THEIR ACTION; TESTS OF PURITY 29 IV. WATER: ITS CHEMISTRY AND PROPERTIES; IMPURITIES AND THEIR ACTION; TESTS OF PURITY continued 38 V. ACIDS AND ALKALIS 49 VI. BORIC ACID, BORAX, SOAP 57 VII. SHELLAC, WOOD SPIRIT, AND THE STIFFENING AND PROOFING PROCESS 62 VIII. MORDANTS: THEIR NATURE AND USE 69 IX. DYESTUFFS AND COLOURS 79 X. DYESTUFFS AND COLORS continued 89 XI. DYEING OF WOOL AND FUR; AND OPTICAL PROPERTIES OF COLOURS 100 INDEX 117 THE CHEMISTRY OF HAT MANUFACTURING LECTURE I TEXTILE FIBRES, PRINCIPALLY WOOL, FUR, AND HAIR Vegetable Fibres... Continue reading book >>
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