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United States Department of Agriculture

Agricultural Research Service

Related Topics



2012 Annual Report

1a. Objectives (from AD-416):
1. Assess the impact of newly developed varieties, agronomic practices, and ginning practices upon fiber and yarn quality. 2. Develop methods for the determination of cotton fiber frictional properties and their relationship to fiber convolutions, fiber maturity, metal content, wax and pectin content, and sugar content, with the aim of improving the understanding of factors affecting processing efficiency (roughly defined as the ratio of theoretical processing time vs. real processing time), utilizing state-of-the-art processing equipment. 3. Develop a new generation of instrumental methods and improve existing methods for the assessment of cotton fiber and yarn quality characteristics. 4. Develop fiber quality measurements and standards for flax fibers in order to efficiently assess quality characteristics of resultant short staple blends with cotton and in non-woven applications for composite materials.

1b. Approach (from AD-416):
Cottons produced under a variety of commercial/experimental conditions will be studied using modern manufacturing procedures. Genetic, agronomic and ginning variables will be correlated with textile processing performance in cooperation with collaborators (40% of effort). Chemical and microbiological properties of cotton will be studied for their effects on processing performance, yarn-fabric quality, worker safety and environment contamination (25%). Measurements of color, leaf, trash and contaminants will be improved for better prediction of processing performance and yarn fabric quality (20%). Reference test methods for strength and other HVI measurements will be developed-implemented (15%). Research will focus on improved predictive relationships between processing performance and yarn fabric quality over and above those obtained by using traditional measures of length, strength, color, fineness and trash by identifying developing rapid measurements of other important fiber properties. These measurements will be adapted for use in classification and marketing.

3. Progress Report:
Fiscal Year 2012 Consolidated Appropriations Act (H.R. 2112) passed by Congress and signed by the President on November 18, 2011, authorized the closing of the Unit. The program was terminated retroactively to October 1, 2011. Therefore, this project is being terminated through the FY 2012 Annual Reports process. Data was not collected associated with this project due to direction of the Agency as part of the facility closing procedures of FY12.

4. Accomplishments

Review Publications
Liu, Y., Gamble, G.R., Thibodeaux, D.P. 2011. Potential of near infrared spectroscopy in the prediction of cotton fiber strength indices. Applied Engineering in Agriculture. 27(5): 839-843.

Liu, Y., Thibodeaux, D.P., Gamble, G.R. 2012. Characterization of attenuated total reflection infrared spectral intensity variations of immature and mature cotton fibers by two-dimensional correlation analysis. Applied Spectroscopy. 66(2):198-207.

Liu, Y. 2012. Principal component analysis in the development of optical and imaging spectroscopic inspections for agricultural / food safety and quality. In:Sanguansat, P. Principle Component Analysis. Rijeka, Croatia: InTech. p. 125-144.

Last Modified: 2/23/2016
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