Development of Blended Yarns between Silk and Filagen Fibers

Abstract

The objectives of this research are: 1) to study the method of producing blended yarn with silk and filagen fibers; 2) to study the properties of blended yarn with silk and filagen fibers. The blended yarn was produced with silk and filagen fibers in 5 ratios, namely 70:30, 60:40, 50:50, 40:60, and 30:70 percent, and experts selected 3 ratios of blended yarn to produce sample yarns. These blended yarns were then tested with a tensile testing machine (INSTRON MODEL 5566) to test the tensile strength and elongation at break according to the standard ISO 2026:1993 (E) method A. In addition, the size of the yarn was measured according to the standard based on ISO 2060:1994 (E) option 1. The test was done using a test speed of 250 mm per minutes, and the test distance was performed at 250 millimeters. The results showed that the blended yarn using a ratio of silk and filagen fibers of 70:30 percent had a tensile strength at break of 14.97 newtons, elongation at break of 11.12 percent, and the size of the yarn was 574.7 denier. Therefore, this blended yarn is classified as a heavy type yarn, which is most suitable for developing prototype blended yarns between silk and filagen fibers.