Letter | Published:

Incidence, Size and Shape of Meta-cortex Fibres in Wool

Nature volume 199, pages 13061307 (28 September 1963) | Download Citation

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Abstract

THE presence of a basophilic, sulphur-deficient core in some wools has been reported1,2, and the core has been called the meta-cortex to differentiate it from the ortho- and para-portions of the cortex. Recently, solvent-cleaned samples of several types of wool have been stained by being boiled for 15 min in methylene blue (0.05 g/l.) at pH 6.5, thoroughly rinsed, and afterwards cross-sectioned using a Hardy microtome. The fibre cross-sections were examined for the presence of a medulla, or of a stained meta-cortex, and their major and minor axes were measured using a projection microscope at a magnification of 500. For each sample approximately 500 fibres were examined. The percentages in each class are set out in Table 1.

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References

  1. 1.

    , and , Nature, 186, 93 (1960).

  2. 2.

    , Text. Res. J., 28, 185 (1958).

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Author information

Affiliations

  1. Department of Textile Industries, University of Leeds.

    • J. MARCET
    •  & W. J. ONIONS

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DOI

https://doi.org/10.1038/1991306b0

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