The Textile Fibers; Their Physical, Microscopical and Chemical Properties

The Textile Fibers; Their Physical, Microscopical and Chemical Properties

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1913 edition. Excerpt: ...closely knit together; therefore the increase in tensile strength, as ascertained by Buntrock, represents really the greater coherence of the fibres to one another rather than an increase in the strength of the individual fibre, because in breaking a yarn spun from a large number of fibres there is little or no actual breaking of the fibres themselves, but only a pulling apart of the latter. The same criticism also applies to a determination of the elasticity. It would, perhaps, be more scientific to determine the breaking strain and elasticity of the separate fibres rather than that of the yarn or cloth; but it may be assumed, with considerable show of reason, that these figures of Buntrock will represent a fair relation between the strength and elasticity of the individual fibres. The cause of the lesser increase in tensile strength of cotton mercerized under tension as compared with that of the same cotton mercerized without tension is to be attributed to According to Bowman (Structure of Cotton Fibre, p. 227) the increase in strength of single cotton yarns (20/1 to 60/1) by mercerization is about 32 per cent and for twofold yarns 50 per cent. The yarns were mercerized without tension in cold caustic soda solution of 1.35, but rinsed under tension. the fact that when the shrinkage of the fibre is prevented by the application of an external force the cell tissues cannot become as compact as otherwise, and there is also an internal strain induced which lessens the ultimate strength of the fibre. This latter condition also accounts for the lack of any increase in the elasticity of the mercerized fibre; the fibre when mercerized under tension is already in a stretched or strained condition, and can hardly be expected to give the same degree...
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Product details

  • Paperback | 196 pages
  • 189 x 246 x 11mm | 358g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236616197
  • 9781236616197