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United States Department of Agriculture

Agricultural Research Service

Research Project: New and Improved Assessments of Cotton Quality

Location: Cotton Structure and Quality Research

Title: Preliminary study of linear density, tenacity, and crystallinity of cotton fibers

Authors
item Liu, Yongliang
item Thibodeaux, Devron -
item Rodgers, James

Submitted to: FIBERS
Publication Type: Peer Reviewed Journal
Publication Acceptance Date: June 26, 2014
Publication Date: July 14, 2014
Citation: Liu, Y., Thibodeaux, D., Rodgers III, J.E. 2014. Preliminary study of linear density, tenacity, and crystallinity of cotton fibers. FIBERS. 2: 211-220. DOI: 10.3390/fib2030211.

Interpretive Summary: An investigation of the relationships among fiber linear density, tenacity, and structure is important to help cotton breeders modify varieties for enhanced fiber end-use qualities. This study employed the Stelometer instrument, which is the traditional fiber tenacity reference method and might still be an option of rapid screening tool because of its low cost and portable attributes. In addition to flat bundle break force and weight variables from a routine Stelometer test, number of fibers in the bundle was counted manually and the fiber crystallinity (CIIR) was characterized by the previously proposed ATR-FTIR protocol. Based on the plots of either tenacity vs. linear density or fiber count vs. mass, the fibers were subjectively divided into fine or coarse set. Relative to the distinctive increase in fiber tenacity with linear density, there was an unclear trend between the linear density and CIIR for these fibers. Samples with similar linear density were found to increase in tenacity with fiber CIIR. In general, AFIS fineness increases with fiber linear density

Technical Abstract: An investigation of the relationships among fiber linear density, tenacity, and structure is important to help cotton breeders modify varieties for enhanced fiber end-use qualities. This study employed the Stelometer instrument, which is the traditional fiber tenacity reference method and might still be an option of rapid screening tool because of its low cost and portable attributes. In addition to flat bundle break force and weight variables from a routine Stelometer test, number of fibers in the bundle was counted manually and the fiber crystallinity (CIIR) was characterized by the previously proposed ATR-FTIR protocol. Based on the plots of either tenacity vs. linear density or fiber count vs. mass, the fibers were subjectively divided into fine or coarse set. Relative to the distinctive increase in fiber tenacity with linear density, there was an unclear trend between the linear density and CIIR for these fibers. Samples with similar linear density were found to increase in tenacity with fiber CIIR. In general, AFIS fineness increases with fiber linear density.

Last Modified: 10/23/2014
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