A sliver () is a long bundle of fibre that is generally used to spin yarn. A sliver is created by carding or combing the fibre, which is then drawn into long strips where the fibre is parallel.Yarn Production, National Cotton Council of America When sliver is drawn further and given a slight twist, it becomes roving.Freund, Kimberlie and Norton, Marjorie J.T., Broadwoven Fabrics, USITC Publication 3410: 4 . Free public-domain fulltext.Spinning Prep/Combing Lab, International Textile Center
Worsted textiles differ from woolen textiles in that, after carding, they are subjected to gilling, a process to make sure the sliver has a more uniform linear weight, and lubricants are added.
See also ISO 2
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