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Solution spinning<br />
See Dry Spinning.<br />
Sorbent<br />
A nonwoven fabric used to attract and/or contain fluids. The term is most commonly used to<br />
describe products that are used to clean-up environmental oil spills and around machinery in<br />
a workplace to capture oil and other fluids. Oleophilic fibers, such as from polypropylene, are<br />
widely used in these products.<br />
Specific gravity<br />
Ratio of the mass of a material to the mass of an equal volume of water at 4 o C.<br />
Spin finish<br />
A lubricant applied to fibers to reduce friction and static during processing into yarns and<br />
fabrics.<br />
Spinning<br />
A process by which filaments or fabrics, made from filaments, are generated directly by<br />
passing a molten polymer through a spinneret.<br />
Spinneret<br />
A disc or plate containing many small holes through which molten polymer is extruded to<br />
form filaments. Spinnerets are used in the spunlaid process or production of filaments.<br />
Occasionally the spelling is “spinnerette.”<br />
Spray bonding, Spray bonded<br />
A method of binding fibers to form a fabric. The adhesive binder is sprayed onto the web of<br />
fibers and subsequently dried and cured. See Resin Bonding.<br />
52 <strong>Nonwovens</strong> <strong>Glossary</strong>
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