TS 111 Lecture Notes - Lecture 7: Knitting, Maurice Ravel, Galloon
Document Summary
Nonwoven fabrics: generally defined as a textile structured produced by bonding or interlocking of fibers, or both, accomplished by mechanical, chemical, thermal or solvent means and combinations of there of. Background: introduced in 1942, handi-wipes: one of the earliest identifiable nonwoven consumer products. Performance profile of a nonwoven: strength, softness, absorbency, filtering ability. Nonwovens do not need to be finished; some include embossing, flame retarding and making surface more hydrophilic or hydrophobic. Weight range: 15 grams/meter to over 1000 grams/meter. Density: low 40 kilograms/centimeter or as high as. Durable: materials are not intended to be thrown away after a single or limited number of applications: ie: apparel interlinings, carpet backings, subsoil covers for road beds, and tiles on a space shuttle. 3 major manufacturing methods are used to produce nonwoven materials: drylaid: material structure is found by having the fibers manipulated while in dry state.
