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Tropical Fibres; Their Production and Economic Extraction

Tropical Fibres; Their Production and Economic Extraction

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About the Book
Excerpt from book: CHAPTER III. FIBRE-PRODUCING PLANTS. All vegetable fibres used for textile purposes, resolve themselves into three great classes, viz.: Foliaceous fibres, Cortical fibres, and Capsular fibres. 1. Foliaceous fibres. These are obtained from Endogenous or Monoctyledonous plants, or inside-growers, which are best known to us in their herbaceous forms, such as the grasses, including the cereals, sugar-cane, and the common cane, as also the lily, the cat-briar, and all plants in which the leaves have parallel veins. Under and near the tropics, the en- dogens are represented by the yuccas, the agaves, the plantain, and the great family of palms. These plants do not form a regular bark, show no signs of annual growth, and do not increase by continual additions to the outside of the stem, as is the case with the trees common to our climate. Their fibres are imbedded in the cellular tissues and pulpy matter of their stems and leaves, and may in most, if not all cases, be extracted by a purely mechanical process. The fibres known as Manilla hemp, Sisal hemp, silk-grass, etc,, are obtained from plants of this class. It is only in tropical and sub-tropical regions that endogenous plants attain any great development, take arborescent forms, or yield fibres suitable for textile purposes. To an inhabitant of the Northern temperate zone, an endogenous plant of which the green leaves yield valuable fibres, is a curiosity only to be seen in conservatories or botanical gardens. 2. Cortical fibres. These are obtained from what are botanically known as Exogenous or Dicotyledonous plants, or outside-growers, and are contained in their bark or bast. They are often of great length, but little hardened, and with theexception of cotton, are the most valuable produced in temperate climates. Some ...
Book Details
ISBN-13: 9780217411844
Publisher: General Books
Binding: Paperback
Language: English
Returnable: N
Spine Width: 1 mm
Width: 186 mm
ISBN-10: 0217411843
Publisher Date: 17 Jan 2012
Height: 242 mm
No of Pages: 22
Series Title: English
Weight: 59 gr
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