Application of dyestuffs to textiles, paper, leather and other materials (1920)
Matthews, J. Merritt (Joseph Merritt), 1874-1931 · New York, Wiley · leaf 100
onof any alkali, so as to permit of the proper removal of the iron rather thanits fixation in the fiber. 7. Scouring Tops.—Wool is sometimes scoured and dyed in the form oftoys (an intermediate stage between the combed wool and the spun yarn,consisting of a loosely coherent rope of fibers with… … Fig. 66.—Piece Scouring Machine. are very clean in their general character. It is usual to scour tops witliammonia salts or with weak soap solutions. Owing to the delicacy oftheir structure, tops cannot be handled in the same manner as yarn or
Dyes and dyeing · Textile fabrics
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