BS EN ISO 6938:2014 pdf free
BS EN ISO 6938:2014 pdf free.Textiles – Natural fibres – Generic names and definitions
This International Standard gives the generic names and the definitions of the most important natural fibres according to their specific constitution or origin.
An alphabetical list of names in common use is provided, together with the corresponding standardized denominations.
2 Types of fibres
2.1 Natural fibres
Natural fibres are fibres which occur in nature; they can be categorized according to their origin into animal,vegetable and mineral fibres.
2.2 Animal fibres
These include in particular:
一fibres from silk glands, secreted by some insects, perticularly by larvae of the lepidopter order, in the form of two filaments of fibroin cemented together by sericin;
一fibres secreted by some molluscs;
一fibres from hair follicles, with a multicellular structure, composed of keratin, forming the fleece, the coat,he mane or the tail of certain animals.
2.3 Vegetable fibres
These include in particular:
一fibres from seeds: single-cell structure, generated by the epidermal cells of the seed, almost entirely constituted of cellulose;
一fibres from bast: composite fibres obtained from the bast of certain plants, mainly constituted of cellulose and accompanied with incrusting and intercellular materials (pectin bodies, hemicellulose, lignin);
一fibres from leaf: composite fibres obtained from leaves, constituted chiefly of cellulose plus incrusting and intercellular materials, consisting of lignin and hemicelluloses;
一fibres from fruit: composite fibres obtained from fruit, constituted chiefly of cellulose plus incrusting and intercellular materials, consisting of lignin and hemicelluloses.
2.4 Mineral fibres
Mineral fibres are obtained from rocks of fibrous structure, constituted principally of silicates.
Fibre extruded by the silkworm Bombyx mori.
Fibre extruded by the silkworm Antheraea mylitta, Antheraea pernyi, Antheraea yama-may, Antheraea roylei, Antheraea
proylei.
Fibre extruded by the silkworm Anteraea assamensis.
Fibre extruded by the silkworm Phylosamia ricini.
Fibre extruded by the silkworm Anaphe.
Fibre from sheep or lamb of the genus Ovis aries.BS EN ISO 6938 pdf free download.
