CTD 215 Lecture Notes - Lecture 5: Lanolin, Synthetic Fiber, Dry Cleaning

• School: University of Alabama
• Department: Clothing, Textiles and Interior Design
• Course: CTD 215
• Professor: Dr.Thompson

Document Summary

This is finer than wool from subsequent shearing"s: virgin wool: never used or processed before, wool: new wool or fibers reclaimed from scraps. Wool characteristics: wool is formed from a polymer of amino acids. The protein is called keratin: keratin: any of various sulfur containing fibrous proteins that form the chemical basis of horny epidermis tissues, both hair and nails, they polymer chain is coiled (like a slinky). Fine structure of wool: epicuticle: this surface layer, water repellant, cuticle: forms the scales, cortex: the central core, the chemistry of each half of a wool fiber is slightly different. They differ in the amount of sulfur-containing amino acid, crystine. As a result, the two sides are slightly different in chemical and physical behavior; one result is crimp. Wool is natural bicomonent fiber: scales point towards the tip of fiber and away from the root.