Farrell, Frank J. (Frank James), 1877-1937 · London : Charles Griffin & Co. · leaf 129
115 WET CLEANING. rinsing thoroughly in water at 90° F., to remove all traces of soap, running through a dilute acid bath (sulphuric or acetic acids) to brighten the colours on the borders, rinsed in water, hydro-extracted and dried. Instead of brightening the colours in an acid bath, a broken soap… … Fig. 41. —Cell of Electrolyser. emulsion is produced. The blankets are rinsed in this, wrung, hydro-extracted, and dried. After they are taken from the hydro-extractor they must be thoroughly shaken by hand, and must be hung up quite square in the drying-room. (The hydro-extracting is sometimes…
