Characteristics and Properties of HibiscusYarn
By Thepthida Arrak, Suthusanee Boonyobhas, Sakorn Chonsakorn, Rattanaphol Mongkholrattanasit
The objective of this study was to study the characteristics and properties of Hibiscus tiliaceus fiber of different ages, the production process of Hibiscus tiliaceus yarn with fibers of different ages, and the characteristics and physical properties of Hibiscus tiliaceus yarn of different ages. The Completely Randomized Design (CRD) was employed for the experiment planning of the characteristics and properties of the 2-month, 3-month and 4-month Hibiscus tiliaceus fiber and yarn. The test was in accordance with the American Society for Testing and Materials (ASTM). Then the average properties of the fibers and yarn of different ages were analyzed by the Analysis of Variance with One-Way ANOVA and compared with the average pair LSD (Least Significant Difference).
The result indicated that the longitudinal characteristics of the 4-month yarn had the best arrangement of fiber and rough surface all along the length. Its cross section looked like a polygon shape and its burning was quick, giving the smell of burning paper and gray ash. In addition, the fiber was dissolved in sulfuric acid. Concerning the physical properties test, it was found that the 4-month Hibiscus tiliaceus fiber had the highest strength and the longest length with an average strength of 16.34 N. and the average length of 5.61 cm. Concerning the moisture absorption, it was found that the average moisture absorption of the 2-month Hibiscus tiliaceus fiber was the highest of 12.29 per cent. The experiment on the production and properties of Hibiscus tiliaceus yarn showed that the 4-month Hibiscus tiliaceus fiber could produce the smallest and longest yarn of 45 meters while the 3-month yarn had the highest average strength of 111.39 N. The different physical properties of the fiber and the yarn of different ages were statistically significant at the level of 0.5