New findings on within bale repeatability of measurements obtained with standardized instruments for testing cotton (SITC) in Gossypium Hirsutum Fiber produced in West and Central Africa

Aboe Modeste, Gourlot Jean-Paul, Gozé Eric, Hublé Pascal, Sinoimeri Artan. 2012. New findings on within bale repeatability of measurements obtained with standardized instruments for testing cotton (SITC) in Gossypium Hirsutum Fiber produced in West and Central Africa. Textile Research Journal, 82 (14) : 1469-1484.

https://doi.org/10.1177/0040517511424532

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Quartile : Q1, Sujet : MATERIALS SCIENCE, TEXTILES

Résumé : Around 50% of the cotton bales produced in the world are sold based on the analysis of their technological characteristics using a standardized instrument for testing cotton (SITC). In the United States of America, periodical studies of variability of the results allow the results to be accompanied by commercial tolerances to limit the frequency of claims. However, to our knowledge, no such study has been conducted in Africa. For this reason, we studied within-bale variability of fiber micronaire, length, uniformity, strength, reflectance and yellowness as measured by the SITC.We took eight samples per bale from 215 cotton bales produced by 27 ginning mills in eight Sub-Saharan countries in Africa in two cropping seasons. Our representative sample was composed of 1720 fiber samples that were analyzed in controlled conditions using the SITC in a laboratory in which international recommendations are fully respected.We measured within-bale variability and suggest a sampling method and procedure to perform technological and instrumental tests in West and Central Africa.

Mots-clés Agrovoc : classification, coton, fibre végétale, technique analytique, mesure (activité), échantillonnage, méthode statistique, méthodologie, contrôle continu

Mots-clés géographiques Agrovoc : Afrique au sud du Sahara

Mots-clés complémentaires : Fibre de coton

Classification Agris : Q60 - Traitement des produits agricoles non alimentaires
U10 - Informatique, mathématiques et statistiques
U30 - Méthodes de recherche

Champ stratégique Cirad : Hors axes (2005-2013)

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