. Useful information for cotton manufacturers . ner fibreof fibroin, as it is termed, covered by a layer of the sericin,or silk-glue; like wool, the silk fibre is prepared for manu-facture by being boiled or scoured so that the double threadsare separated and the silk-glue removed. The fibre thenappears as a single nearly white lustrous fibre, apparentlya continuous filament but probably a bundle of exceedinglyminute fibrils. Hygroscopically silk is second only to wool. 1352 Providence, R» I. Charlotte, N. C Atlanta, Ga. Cotton belongs to the species of vegetable fibre known assingle cell plan
. Useful information for cotton manufacturers . ner fibreof fibroin, as it is termed, covered by a layer of the sericin,or silk-glue; like wool, the silk fibre is prepared for manu-facture by being boiled or scoured so that the double threadsare separated and the silk-glue removed. The fibre thenappears as a single nearly white lustrous fibre, apparentlya continuous filament but probably a bundle of exceedinglyminute fibrils. Hygroscopically silk is second only to wool. 1352 Providence, R» I. Charlotte, N. C Atlanta, Ga. Cotton belongs to the species of vegetable fibre known assingle cell plant hairs. Each cotton fibre is** ** a single cell with one end closed and the other end attached to a seed. The cell walls have no definite struc-ture and are porous. In the early stages of its growth thecotton fibre is round and cylindrical with a central canal ex-tending through it filled with juices; in the ripening process,the cotton boll first opens exposing the fibres to light andair, the juices in the canal dry up and deposit themselves. (Micrograph by Mathews, showing tne stretching and straighte ing-outeffect of mercerizing cotton x 350.) unequally in proportion to the amount of exposure, therebycausing an unequal collapse and contraction of the cell walls,resulting in the twisting of each fibre, so characteristicallypeculiar to cotton. Neps are short fibres mixed in with theothers, and to some extent, therefore, their presence cannotbe helped; at the same time the percentage of them is oftenunnecessarily increased by excessive breakage of fibre throughbad handling and manipulation under unfavorable atmos-pheric conditions in the processes of carding and cotton fibre consists of a cell wall of pure cellulosecovered by an external cuticular fibre of modified cellulose, 1353 STUART W. CRAMER and an internal lining to the central canal somewhat likethe onter coating—the whole fibre being surrounded at inter-vals by ligatures or ties binding and holding the
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectcottonm, bookyear1904
