Elementary treatise on the finishing of white, dyed, and printed cotton goods . y dear, pro-duces little and is uncertain on account of the in-equality of the heating; it is further, only employedin works where there is a special provision forthis kind of chloring. In chloring on the drying machine, it is pre-ferable to use a pin-engraved roller for padding7as this impregnates the goods better; by ex-perience we find that the portions not printedbecome more moist than the colored parts, thusthe chlorine acts more efficaciously on the is also another method of chloring calledsteam
Elementary treatise on the finishing of white, dyed, and printed cotton goods . y dear, pro-duces little and is uncertain on account of the in-equality of the heating; it is further, only employedin works where there is a special provision forthis kind of chloring. In chloring on the drying machine, it is pre-ferable to use a pin-engraved roller for padding7as this impregnates the goods better; by ex-perience we find that the portions not printedbecome more moist than the colored parts, thusthe chlorine acts more efficaciously on the is also another method of chloring calledsteam chloring, which dates from about 1855 andis of English origin. It is generally the first chlo--ring given and chloring on the drying machine is 302 CHLORING AND BLUEING. the last, blueing may be performed simultaneouslywith this latter process. The operation consists in impregnating thecloth with a solution of chlorine of from 1/ao ° toIV20 Bi the fabric afterwards passing through asteam-chamber, the moist heat determines theoxidising action of the chlorine and the destruc-. Fig. 131. Steam chloring. AA, the two rollers by which the cloth passes after being impregnatedwith chlorine. T. steam-pipe in chest E. FG, sides of chimney forescaped steam from chest D, steam passing out at C. E. chimney. whence piece passes by L to be well squeezed andafterwards dried on drums MM. tion of the coloring-matter adhering to the whiteparts. The strength of the bath should be so regu-lated that the fabric may not be injured and thatthe colors only suffer in an extremely slight degree,not to say not at all. Chloring in the drying machine is done invarious ways either by only passing the clothbetween two rollers, the bottom roller dipping in CHLORING AND BLUEING. 303 the chloring bath (fig. 132, page 303) or bypassing the cloth through the open bath (fig. 133,
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