Textile testing: Difference between revisions

Revision as of 08:57, 21 November 2022

Revision as of 09:11, 21 November 2022

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Cotton's simple Micronaire value is determined by both the fineness of the fibres as well as their maturity.<ref>{{Cite web |title=Micronaire - an overview {{!}} ScienceDirect Topics |url=https://www.sciencedirect.com/topics/engineering/micronaire |access-date=2021-08-29 |website=www.sciencedirect.com}}</ref> Micronaire values or reading represents the fineness of the cotton fiber. For example, a preferred micronaire range is 3.7 to 4.2. [[Gossypium hirsutum|Upland cotton]] is coarser than [[Gossypium barbadense]] (Pima cotton).<ref>{{Cite book |last1=Fang |first1=David D. |url=https://books.google.com/books?id=amDMDwAAQBAJ&dq=micronaire+value+of+cotton&pg=PA708 |title=Cotton |last2=Percy |first2=Richard G. |date=2020-01-22 |publisher=John Wiley & Sons |isbn=978-0-89118-625-0 |pages=708 |language=en}}</ref>

The HVI (High Volume Instrument) from Uster measures the following parameters: fiber length, length uniformity, fiber strength, fiber maturity, short fiber content, micronaire (fibre fineness), color grade, leaf, and foreign matter.<ref>{{Cite web |title=HVI Testing (High Volume Instrument Testing) |url=https://www.cottonworks.com/en/encyclopedia-item/hvi-testing-high-volume-instrument-testing/ |access-date=2022-11-21 |website=CottonWorks™ |language=en-US}}</ref><ref>{{Cite web |title=HVI {{!}} PDF {{!}} Yarn {{!}} Cotton |url=https://www.scribd.com/document/7314282/HVI |access-date=2022-11-21 |website=Scribd |language=en}}</ref>

{{Further|Units of textile measurement}}