Textiles Notes Week 3 (2/1 - 2/3)
Textiles Notes Week 3 (2/1 - 2/3) DM 120-001
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This 4 page Class Notes was uploaded by Sadie Threlkel on Sunday February 7, 2016. The Class Notes belongs to DM 120-001 at Colorado State University taught by Yan Li in Spring 2016. Since its upload, it has received 27 views. For similar materials see Textiles in Industrial Engineering at Colorado State University.
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Date Created: 02/07/16
Textiles Notes 2 2/1 – 2/3 2/1 Natural Fibers (plant and protein fibers) Cotton – most used natural fiber China #1 producer, U.S #2 producer Types of Cotton: o American Upland Cotton (95% of production use) o American Pima Cotton (extralong staples or ELS) o Sea Island Cotton o Egyptian Cotton last three listed above are high quality and a longer shape Cotton is rated by: o Fiber lengths, strength, yellowness, trash content, fiber diameter, maturity and reflectance o Cotton is composed mostly of cellulose o Natural cream color o ½ to 2 ½ inches long o Microstructure – flat twisted tubes (looks like twisted ribbon) Properties and End Uses of Cotton Favorable Aspects of Cotton o Hydrophilic o Good strength and abrasion resistance o Stronger when wet o No static or pilling issues o Fair drape o Soft hand o Inexpensive Unfavorable Aspects of Cotton o Little luster o Poor elasticity and resistance o Attacked by mildew/silverfish (create holes if left sitting for long periods of time) End Uses o Wide range of products in apparel, interior furnishings and industrial areas Flax (Linen) Oldest textile fiber France is the largest producer composed mainly of cellulose fiber length is 2 to 36 inches microstructure looks like bamboo Properties and End Uses of Flax Favorable Aspects of Flax o Excellent strength – strongest of plant fibers o Stronger when wet o Good luster o Hydrophilic o Absorbs moisture quickly o Dries quickly o No static or pilling o Washable and dry cleanable Unfavorable Aspects of Flax o Fair resistance to abrasion o Poor drape o Poor elasticity o Vulnerable to mildew and silverfish End Uses o Dresses, suits, sports jackets, sheets, wallpaper, etc. Silk Comes from silk worm larvae cocoon China is the largest producer Silk is the ONLY natural filament fiber Microstructure is a rounded triangular shape with an uneven diameter Properties and End Uses of Silk Favorable Aspects of Silk o Excellent drape o Luxurious hand o The thinnest of natural fibers o Hydrophilic o Very little problem with static o No pilling o Washable and dry cleanable Unfavorable Aspects of Silk o Fair resiliency o Abrasion on resistance o Weaker when wet o Poor sunlight resistance o Vulnerable to moths o Expensive o Poor chemical resistance End Uses o Dresses, ties, scarves, etc. Wool 200 types of wool fibers Merino wool is the most commonly used Australia and New Zealand are leading producers Protein fiber Natural cream/brown/black color 118 inches long (fibers) Microstructure – round, scaly surface (natural crimp) o Natural crimp prevents wool fibers from packing together and in turn creates air pockets which is used as an insulating barrier o Slow moisture absorption provides a chemical reaction which releases energy in the form of heat Felting occurs in the presence of: o Heat o Moisture o Agitation o Fiber surface scales interlock with one another leading to a tangled mass on the fiber surface that cannot be combed or brushed out o These scales snag adjacent wool fibers the fibers cannot return to their original positions in the fabric Properties and End Uses of Wool Favorable Aspects of Wool o Good resiliency o Little wrinkling o Excellent hand o Good drape and elasticity o Hydrophilic o Little static o Good abrasion resistance if coarse o Excellent insulation Unfavorable Aspects of Wool o Fair to good abrasion resistance o Must be dry cleaned o Felting occurs when washed o Vulnerable to moths unless mothproofed o Expensive o Pilling occurs End Uses o Overcoats, suits, sweaters, carpets, luxury upholstery, felt, etc. 2/3 EXAM 1 – No notes!
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