More kinds of water-soluble polyurethane elastomer fibers sea island reduction method under mild conditions

More kinds of water-soluble polyurethane elastomer fibers sea island reduction method under mild conditions, by melt-spinning a composite is soluble in water in certain conditions the polyurethane elastomer and the island component to obtain sea-island fibers; use of a potentially water-soluble polyurethane hydrophilic group, sea component to achieve reduction and recovery under mild conditions. The obtained sea-island fibers can be widely used in synthetic leather, knitting, etc., compared with the prior art, the present invention overcomes the organics present in the sea-island fibers during reduction causes waste of resources and environmental pollution caused by emissions.