Vegetable flannel is a type of flannel using fibres from the Scots pine, or pinus sylvestris, rather than traditional woollen fibres. It is described as having a hemp like appearance, but with a tighter, softer texture. In addition to this, the term can also describe coarse linen used for underclothing.
Invented in the early 19th century by L. Léopold Lairitz of Germany, the manufacture of vegetable flannel became a Black Forest industry due to the wide availability of the pines there which provided the raw materials. The raw fibre, called waldwolle (forest wool), and the pine oil were separated, and then the waldwolle was spun into yarn or thread, and either woven or knitted.
Vegetable flannel was promoted as a hypoallergenic option for those who could not wear wool, and was thought to be particularly good for rheumatism and neuralgia. In the nineteenth century, this was attributed to the tannins and resins present in the fibre, and "formic acid, which creates a gentle and constant excitement of the skin." Another contemporary article claimed that vegetable flannel regulated the release of phosphorus and other elements from the invalid's body. In 1900, vegetable flannel was widely used for blankets in German hospitals, prisons and barracks as it was thought not to harbour pests and vermin.
- "Vegetable flannel". Webster's 1913 Dictionary. Webster. Retrieved 18 August 2014.
- Cole, George S. (1900). Cole's Encyclopedia of Dry Goods. Root Newspaper Association. p. 566.
- Tortora, Phyllis G.; Johnson, Ingrid (2014). The Fairchild books dictionary of textiles (8th edition. ed.). New York: Fairchild Books. ISBN 9781609015350.
- "Vegetable Flannel". Frank Leslie's Pleasant Hours: 256. 1869.
- "Manufactures: Vegetable Flannel". The Journal of the Society of Arts: 281. 10 March 1865.
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