. Textile school catalog, 1915-1916. abrics.—Analysis of dyestuffs for money value andcolorimetric value.—Determination of exhaustion of dye-baths and mordantbaths. (c) Reactions of Dyestuffs and Adulterants Testing the chemical reactions of dyestuffs.—Identification and estimationof adulterants in dyestuffs.—Determination of proper classification of speed of dyestuffs; detection of mixed dyes.—Testing of dyestuffson the fibre for the purposes of identification.—Practice in the analysis ofdyes in bulk and on the fibre. The subject of textile chemistry is a very comprehensiv
. Textile school catalog, 1915-1916. abrics.—Analysis of dyestuffs for money value andcolorimetric value.—Determination of exhaustion of dye-baths and mordantbaths. (c) Reactions of Dyestuffs and Adulterants Testing the chemical reactions of dyestuffs.—Identification and estimationof adulterants in dyestuffs.—Determination of proper classification of speed of dyestuffs; detection of mixed dyes.—Testing of dyestuffson the fibre for the purposes of identification.—Practice in the analysis ofdyes in bulk and on the fibre. The subject of textile chemistry is a very comprehensive one,and for that reason is divided into three groups. This course isvery essential to the student who desires to fit himself thoroughlyfor the position of dyer, chemist in a textile mill or commissionhouse, or chemist in a dyestuff manufactory, and has been speciallydesigned with these ends in view. A large amount of practical workin the analysis and testing of the various materials given is requiredof each student. 8/. COURSE IN CHEMISTRY, DYEING AND PRINTING DYEING I. Physical and Chemical Properties of the Textile Fibres Classification of textile fibres.—Study of the physiological structure, chemi-cal constitution and reactions of the various animal and vegetable fibres.—Physical properties of the fibres.—Shoddy and wool substitutes.—Mercerizedcotton and artificial silks.—Microscopy of the fibres.—Action of various chem-ical reagents on the fibres in the manufacturing processes. This course is intended to make the student familiar with thevarious fibres that are employed for textile purposes. He is requiredto study the microscopy of typical fibres, and in this manner becomefamiliar with the peculiar structure of fibres of different origin. DYEING II. Technology of Scouring and Bleaching Study of the impurities occurring in raw wool.—Steeping and scouringwool.—By-products from scouring liquors.—Scouring cloth and yarn.—Waterfor scouring purpo
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