摘要：

Formaldehyde resin fibres, in particular urea formaldehyde resin fibres, are produced by introducing a liquid formaldehyde resin and a catalyst into a spinning cup in the presence of cold humid air which inhibits drying and reaction, centrifugally spinning fibres from the cup into the path of hot air currents, at between 50° C. and 100. degree. C., which dry the fibres without curing them, and curing and chemically stabilizing the dry fibres by heating at above 100° C. until they are insoluble in cold water.

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