. A manual of dyeing: for the use of practical dyers, manufacturers, students, and all interested in the art of dyeing . .2 o to 702 A MANUAL OF MACHINERY USED IN DYEING. 70T, By this means colour, &c., added afterwards is mixed with the whole of theliquor in the shortest possible time, and, therefore, produces no uneven placesin the material. The apparatus can be quickly emptied of excess of dye-liquorby the outlet valve in the bottom. The suspended vat is lifted out by a fixedor running crane, according to circumstances. Dyeing in this apparatus is in general the same as in others,
. A manual of dyeing: for the use of practical dyers, manufacturers, students, and all interested in the art of dyeing . .2 o to 702 A MANUAL OF MACHINERY USED IN DYEING. 70T, By this means colour, &c., added afterwards is mixed with the whole of theliquor in the shortest possible time, and, therefore, produces no uneven placesin the material. The apparatus can be quickly emptied of excess of dye-liquorby the outlet valve in the bottom. The suspended vat is lifted out by a fixedor running crane, according to circumstances. Dyeing in this apparatus is in general the same as in others, or in open■pans. A considerably smaller amount of water is required than with openpans, and, therefore, some precautions are necessary. The copper wire sieveswhich are covered with well-boiled jute or linen cloth, in order to prevent theso-called copper stains produced by acids, keep the material from moving andbecoming matted. Before dyeing, the woollen yarn or other material is wellscoured and wetted out, and if possible hydro-extracted, so that it absorbs the•dye-liquor evenly. In laying yarn in the vat care should be taken that the lay
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectdyesanddyeing, bookye
