The actual situation of cotton stickiness

Héquet Eric, Frydrych Richard. 1992. The actual situation of cotton stickiness. . Montpellier : CIRAD-IRCT, 9 p. Annual Engineered Fiber Selection Conference. 5, s.l., Juin 1992.

Résumé : The ITMF report "Cotton Contamination Survey 1991" involving the participation of 201 companies based in 22 different countries, alerted the industry to the fact that 27 % of cases presented problems of stickiness compared with 21 % in 1989. These figures indicate a marked deterioration in the situation in only 2 years. There is a considerable increase in stickiness except in Europe. The Sudan remains the country most affected, but the North American zone with 31,7 % positive cases, is now at the same level as Africa (without the Sudan) ie. 32,7 % positive cases. It should, however, be noted that this survey only determined the presence or absence of stickiness, rather than its intensity. Its conclusions should therefore be considered with care as cot tons that are only slightly sticky do not systematically lead to problems during the spinning process. Many research projects have been initiated to examine cotton stickiness in spinning in order to better understand the phenomenon, detect stickiness and eliminate its cause. The problem is very complex because the stickiness of cottons from different geographical origins may be due to a variety of factors: various contaminants such as seed coat fragments, insecticide, oil, etc.; physiological sugars; entomological sugars. The latter are excreted by two homopters: the aphid Aphis gossypii and the aleurode Bemisia tabaci. These excretions (usually called honeydew) can be found throughout the different stages involved in the transformation of cotton fibers, i.e. from the plant to the yarn.

Auteurs et affiliations

• Héquet Eric
• Frydrych Richard

Source : Cirad-Agritrop (https://agritrop.cirad.fr/605610/)

Métriques

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