Stock material or miscellaneous articles – Pile or nap type surface or component – Flock surface
Patent
1980-07-17
1982-11-30
Kendell, Lorraine T.
Stock material or miscellaneous articles
Pile or nap type surface or component
Flock surface
66202, 428 97, 428225, 428296, 428300, B32B 302, B32B 3300, D04B 716
Patent
active
043616097
ABSTRACT:
Fibrillatable multicomponent fibers of the matrix segment type and a process for production of fiber structures by splitting shrinkable, basically unset, multi-component fibers consisting of at least two incompatible components which in the fiber cross section are arranged in the form of a matrix and several segments, the latter accounting for about 20% to 80% of the total cross section. After having been processed into fiber structures such as staple fibers, yarns or fabrics, the multicomponent fibers are treated with a liquid or gaseous organic solvent, particularly chlorinated lower alkanes, to partially or completely split the segment filaments from the matrix component. Useful solvents are those which will reduce the zero-shrinkage temperature of the matrix or the segment polymer by at least 160.degree. C. and in which the polymer components constituting the fiber show different shrinkage behavior. Splitting may be further enhanced by the application of mechanical agitation, e.g. by ultrasonic waves. Fabrics made from the multicomponent fibers may be woven, knitted, non-woven, flocked and three-dimensional.
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Okamoto, "Ultra-fine Fiber and its Application", Nov. 1977, Japan Textile News, pp. 94-97.
Okamoto, "Ultra-fine Fiber and its Application", Jan. 1978, Japan Textile News, pp. 77-81.
Gerlach Klaus
Mathes Nikolaus
Wechs Friedbert
Akzona Incorporated
Hall Jack H.
Kendell Lorraine T.
Young Francis W.
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