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What is "Fiber Base" - Definition & Explanation

Most man-made fibers are formed by forcing a syrupy substance (about the consistency of honey) through the tiny holes of a device called a spinneret In their original state, the fiber-forming substances exist as solids and there-fore must be first converted into a liquid state for extrusion. This is achieved by dissolving them in a solvent or melting them with heat. If they cannot be dissolved or melted directly, they must be chemically converted into soluble derivatives.

The basic substance for the three cellulosic fibers (acetate, rayon, and triacetate) is cellulose, which comes from purified wood pulp. It can be dissolved for extrusion into fibers. The substances used in the production of the noncellulosic fibers generally are melted or chemically converted into a liquid state.

Some other terms

Some more terms:

A generic term for man-made fibers composed of regenerated cellulose derived from trees, cotton and woody plants. Characteristics: high absorbency, bright or dull luster, pleasant feel or hand, good...
Desirable changes in wood that provide interesting patterns at the surface. Examples are: flame, crotch (curl, Brit.), burl (burr, Brit.) , curly (tiger stripe, fiddle, fiddleback) and birdseye....
A mark left in a fabric after a crease has been removed, and that may be caused by mechanical damage to fibres at the fold, by variation in treatment owing to the constriction along the fold, or by...
Mercerized cotton is cotton thread (or cotton-covered thread with a polyester core) that has been treated with sodium hydroxide (NaOH). The thread is given a caustic soda bath that is then...
A fabric produced by interlocking loops in a lengthwise direction. Warp knits tend to be flatter, smoother, more run resistant, and more stable than weft knits. Examples are tricot, raschel and...

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