textiles glossary L-O
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LLight fastness - the retention of colour by fabrics when exposed to light.Life cycle impact (assessment) - a scientific technique for assessing the potential environmental impacts of products and the industrial systems that created them. Considers impacts at each stage of a product's life, from the time natural resources are extracted from the ground and processed through each stage of manufacturing, transportation, product use, and final disposal. MMAC Group III 1. 2, 3, MAC stands for Maximum Acceptable Concentration. substances are grouped into MAC lists depending on the risk they present to human health. Group 3 substances have a low MAC as they are considered potentially harmful.Mechanical compaction - is any process where fibres a forced together mechanically. Mechanical/thermal treatments - treatment using purely mechanical force or heat to achieve desired effect. Mercerisation - a treatment of cotton yarn or fabric to increase its lustre and affinity for dyes. The material is immersed under tension in a sodium hydroxide (caustic soda) solution. This later is neutralised in acid. OO-Phenylphenol - a phenolic compound derived from the reaction of chlorobenzene and caustic soda solution. O-phenylphenol may appear as a nearly white crystal.Optical brightener - A substance that, when added to an uncoloured or a coloured substrate, increases the apparent reflectance of the substrate in the visible region by converting ultraviolet radiation into visible light and so increases the whiteness or brightness of the substrate. Oral Toxicity (minimum requirement) - a measurement of how toxic a substance is if swallowed. For mammals this is usually given as a 'Lethal Dose 50' figure, which is given in mg per Kg. This figure show you how much of a substance in mg would be needed (per Kg body weight), to kill 50% of the test subjects. The lower the LD50 figure, the more toxic the substance is. Sometimes this figure also accompanied by the number of hours it has taken to kill 50% of the test subjects Organotin compounds (individually) -A broad class of compounds that contain at least one bond between tin and carbon. Organotin compounds are used in a variety of industrial applications, including as catalysts in polyurethane, polyester and silicone systems; and as heat stabilisers in PVC (vinyl) processing technology. Textiles News
Swiss Textiles Award | Alexander Wang Wins - New York Times
Textile firms renew demand for banning cotton exports - Business Standard
Herculite and 3P Inkjet Textiles Form Distribution Partnership - Wide-Format Imaging
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