Textile. Tuesday , June 05th , 2018 - 17:05:02 PM
Wool refers to the hair of the domestic goat or sheep which is distinguished from other types of animal hair in that the individual strands are coated with scales and tightly crimped and the wool as a whole is coated with a wax mixture known as lanolin (sometimes called wool grease) which is waterproof and dirtproof.citation needed Woollen refers to a bulkier yarn produced from carded non-parallel fibre while worsted refers to a finer yarn spun from longer fibres which have been combed to be parallel. Wool is commonly used for warm clothing. Cashmere the hair of the Indian cashmere goat and mohair the hair of the North African angora goat are types of wool known for their softness.
Textiles receive a range of treatments before they reach the end-user. From formaldehyde finishes (to improve crease-resistance) to biocidic finishes and from flame retardants to dyeing of many types of fabric the possibilities are almost endless. However many of these finishes may also have detrimental effects on the end user. A number of disperse acid and reactive dyes (for example) have been shown to be allergenic to sensitive individuals.24 Further to this specific dyes within this group have also been shown to induce purpuric contact dermatitis.
Silk is an animal textile made from the fibres of the cocoon of the Chinese silkworm which is spun into a smooth fabric prized for its softness. There are two main types of the silk: mulberry silk produced by the Bombyx Mori and wild silk such as Tussah silk. Silkworm larvae produce the first type if cultivated in habitats with fresh mulberry leaves for consumption while Tussah silk is produced by silkworms feeding purely on oak leaves. Around four-fifths of the worlds silk production consists of cultivated silk
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