Read e-book online Advances in Wool Technology (Woodhead Publishing in PDF

By N A G Johnson, I Russell

Complicated study into wool technological know-how and expertise is resulting in a greater knowing of the houses of wool. Wool is more and more being noticeable as a excessive functionality fibre, with new alterations and purposes. Advances in wool know-how provides a finished account of those advancements and thoughts. half one comprises advances that experience happened within the construction and processing of wool. themes diversity from the growth in wool spinning, weaving and colouration, to environmental offer chain administration and to the position of genetic engineering in more suitable wool construction. half experiences new wool items and functions. Chapters contain the creation of brighter and whiter wool, excessive functionality wool blends and wool for attire. With its unusual editors and array of overseas participants, this booklet may be a invaluable reference for manufacturers, brands, outlets and all these wishing to enhance and comprehend advancements in wool know-how. it is going to even be compatible for researchers in or academia.

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Extra info for Advances in Wool Technology (Woodhead Publishing in Textiles)

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4. 2 Bias Metrologists are concerned with two types of error: • • random or indeterminate errors; and systematic or determinate errors. 96 s m2 Standard deviation of the mean Coefficient of variation N–1 xi = numerical value of the ith measurement. J. Sommerville, Technical & Commercial Requirements of Wool Testing Systems, AWTA Ltd Newsletter, September 2001. The error in the mean of a number of replicate measurements is equal to the sum of these two errors. Random or indeterminate errors impact upon precision.

Generally it is difficult (and expensive) to provide customers with raw materials and products that have flawless quality characteristics. A major reason for this difficulty is variability. Wool is an extremely variable material. It varies along the fibre, among fibres, among staples, among animals, among mobs, among bloodlines and among regions. The quality characteristics of wool were traditionally estimated subjectively. 22 © 2009 Woodhead Publishing Limited The objective measurement of wool fibre quality 23 Today, at all levels of the industry, technology providing objective measurements has almost completely replaced the senses of vision and touch because now most of the quality characteristics can be assigned a numerical value.

Genes Development 9, 700–713. © 2009 Woodhead Publishing Limited 2 The objective measurement of wool fibre quality P. S O M M E R V I L L E, Formerly Corporate Development Manager, Australian Wool Testing Authority Ltd, Australia Abstract: This chapter discusses the measurement and specification of raw wool and wool sliver, providing an overview of the current status of wool fibre metrology, highlighting the major advances that have occurred in the past 50 years. The chapter first provides definitions of relevant terms, outlines the principles of wool metrology, its applications within the wool industry and the statistical methods employed.

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