The dyeing of textile fabrics . svarious novel arrangements have been proposed andpatented, but their practicability has yet to be proved, ^vacuum-dyeing machines. Washing Machinery.—The washing of raw cottonmay be eftected by the raw-wool scouring machine {seep. 100). Excess of water is removed by passing it between apair of squeezing rollers, or by means of the centiifugalmachine (hydro-extractor). Drying Machinery.—Raw cotton may be dried onthe machines described as being used for loose-wool {seep. S77). 217. Cotton Yarn.—Dyeing Machinery.—For hank-dyeing the simplest method is to work
The dyeing of textile fabrics . svarious novel arrangements have been proposed andpatented, but their practicability has yet to be proved, ^vacuum-dyeing machines. Washing Machinery.—The washing of raw cottonmay be eftected by the raw-wool scouring machine {seep. 100). Excess of water is removed by passing it between apair of squeezing rollers, or by means of the centiifugalmachine (hydro-extractor). Drying Machinery.—Raw cotton may be dried onthe machines described as being used for loose-wool {seep. S77). 217. Cotton Yarn.—Dyeing Machinery.—For hank-dyeing the simplest method is to work the hanks in thedye liquor by hand in the manner described for woollenyam scouring on p. 105. With large quantities of any single colour, ,Turkey-red, logwood-black, indigo-blue, kc, the employ-ment of dyeing machines becomes almost imperativa Chap, mt] MACHINERY FOR COTTON YARN. 251 Figs. 48 and 49 represent an excellent machine, de-signed by A. Wilson, of Paisley. It consists of an ordinary rectangular wooden dye-. Fig. 48.—Hauk-Dyeing Machine. vat fitted with a four-armed skeleton-winch, upon whichthe rods, previously filled with yarn, can be readilysuspended. Incharging the ma-chine, the arm a isbrought into theupright position,the movable portionB is lifted ofi thecross piece, and thehinged portion at cis turned back. Thehanks of yarn arehung on pairs oflight wooden rods ;these are placed in Fig. of Fig. 48. the sockets at b and c, and then securely fastened down by re]facing themovable portions alluded to. The winch is then turnedround, and the other half is filled with hanks in a similar
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectdyesanddyeing, bookye
