. A manual of dyeing: for the use of practical dyers, manufacturers, students, and all interested in the art of dyeing . f tops and cops whichhave been dyed by machinery. Yarn.—Yarn in the hank is generally dried by suspending the hankson poles in drying stoves. The stoves, through which a slow current jfair is maintained, may either be heated by steam-pipes, or the air may beheated in this manner before entering. In many works, the drying stoveis placed immediately above the works boilers, and having a perforated or MACHINERY USED IN DYEING. 733 trellis iron floor, it receives the hot air whi
. A manual of dyeing: for the use of practical dyers, manufacturers, students, and all interested in the art of dyeing . f tops and cops whichhave been dyed by machinery. Yarn.—Yarn in the hank is generally dried by suspending the hankson poles in drying stoves. The stoves, through which a slow current jfair is maintained, may either be heated by steam-pipes, or the air may beheated in this manner before entering. In many works, the drying stoveis placed immediately above the works boilers, and having a perforated or MACHINERY USED IN DYEING. 733 trellis iron floor, it receives the hot air which rises from the surface of theboilers. Drying stoves are sometimes constructed in such a manner that the sticksor poles holding the yarn are suspended on a framework which, when filledwith yarn, is run into the stove. When the yarn is dry the framework iswithdrawn and the yarn taken off. Hank-drying machines are also constructed, in which the hanks suspendedon sticks are carried by two endless chains through the machine, and, meetingin their passage with a current of hot air, are delivered at the other end in a. Fig. 112.—Warp drying machine. dry state. Machines of this kind act more rapidly than drying stoves, and are,perhaps, more rational than the latter; but hitherto they have not beenintroduced to any great extent into works, probably on account of the initialexpense. A hank-drying machine, by means of which the drying may be achievedat the ordinary temperature, is constructed by C. G. Haubold, jun., and isshown in Fig. 111. The hanks are suspended from the cross-bars near the axis to those at theperiphery, and the machine is set in motion. At the same time the cross-barsnear the axis revolve, and the hanks are thus slowly turned as they are carried 734 A MANUAL OF DYEING. round. By means of a machine of this kind, yarn, which has been properlyhydro-extracted, can be dried at the ordinary temperature in one to two hoursand has, after drying, a soft and full feel and
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectdyesanddyeing, bookye
