CTD 261 Lecture Notes - Lecture 18: Plying

• School: University of Alabama
• Department: Clothing, Textiles and Interior Design
• Course: CTD 261
• Professor: Amanda Thompson

Document Summary

Totally different machinery is used; carded sliver is rolled around itself rather than twisted. Fibers are not nearly as parallel in worsted yarns. Yarns are softer, warmer, bulkier, and weaker than worsted yarns. They are used in blankets and some sweaters. The warmth of any apparel or textile product is mainly due to its ability to maintain dead-air space within the yarns. Because of the high degree of three-dimensional crimp of wool fibers, it is difficult to align them to a high degree, especially in the production of woolen system yarns. The worsted spinning of wool fibers does achieve good alignment, but at a much higher cost than in woolen spinning. Blend-intimate mixture of fibers of different generic type, composition, length, diameter, or color spun together in one yarn. Different fibers are present in the same yarn in planned proportions. Mixture--yarns of different types in fabric (warp of one type, fill of another)