Textile raw materials and their conversion into yarns : (the study of the raw materials and the technology of the spinning process) a text-book for textile, trade and higher technical schools, as also for self-instruction ; based upon the ordinary syllabus and curriculum of the Imperial and Royal Austrian weaving schools (1901)
Zipser, Julius, Salter, Charles · London : Scott, Greenwood · leaf 71
lets, consisting of polyhedralmedullary cells filled with air, which gives them a darkappearance ; in this case the epidermal scales are less de-veloped. The tip of a hair of lambs wool is shown at c. The aforesaid disposition of the epidermal cells gives riseto a number of transverse bands (75 to… … Fig. 25.—Microscopic appearance of sheeps wool (view), Properties of Wool.—The technical value or utility of wooldepends on a whole series of properties, which the expertdetermines partly by sight and touch (i.e., experience), andpartly by the aid of the microscope and delicate instruments(i.e., by…
Textile fibers · Spinning
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