History of American textiles : with kindred and auxiliary industries (illustrated) . in the dyeing or finishing oftextiles. From these 300 intermediates thereare produced approximately 900 finisheddyes. It is true that a much larger numberof marks or designations or, as some haveassumed, dyestuffs have been made, butthe multiplication has been largely due to the not necessary that each particular result mustgo through all of the various processes whichhave been mentioned, but the outline indi-cates to some extent at least what must beaccomplished for many of the products. Theidea is that many
History of American textiles : with kindred and auxiliary industries (illustrated) . in the dyeing or finishing oftextiles. From these 300 intermediates thereare produced approximately 900 finisheddyes. It is true that a much larger numberof marks or designations or, as some haveassumed, dyestuffs have been made, butthe multiplication has been largely due to the not necessary that each particular result mustgo through all of the various processes whichhave been mentioned, but the outline indi-cates to some extent at least what must beaccomplished for many of the products. Theidea is that many products are producedother than those actually desired, which area necessity if satisfactory reactions are to beobtained for the production of the desiredchemical result. In connection with the production of eitherintermediates or dyestuffs, although possiblyto a greater extent in connection with thedyestuffs, it is well to state that one of themost necessary considerations is regularityof product. A great amount of dye has beenthrown away becauss it varies and it is stated *M^3^. Manchester Print Works, Manchester, N. H. adoption of different marks for dyestuffswhich are identical or nearly so. In order to make clear what has occurred,it might be well to emphasize the fact thatthe shortage of dyes in the domestic mar-ket due to the war made larger productionnecessary and the high prices secured war-ranted it, but at the same time the policyadopted in regard to the operation of theforeign dye patents w^hich have been grantedto domestic manufacturers was also of ser-vice. There are quite a number of opera-tions necessary for the transformation ofcrudes into intermediates. Of course manyother processes than those mentioned arenecessary, but the chief processes are givenas nitration, chlorination, sulphonation, re-duction, oxidation, caustic fusion, alkyla-tion, liming, condensation, carboxylation,diazotizing, and coupling. Of course manymechanical operations are noted and it is t
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Keywords: ., bookcentury1900, bookdecade1920, booksubjecttextile, bookyear1922
