| abstract |
An object of the present invention is to provide an ultrafine fiber that simultaneously satisfies mechanical strength, flexibility, and yarn production, and a textile product for industrial materials represented by an air bag and an air belt that can be obtained with high productivity. . SOLUTION: An ultrafine fiber having a single yarn fineness of 0.1 to 0.8 dtex obtained by seawater removal from a sea-island composite yarn, and having a strength after seawater removal higher than that of a sea-island composite yarn before seawater removal. And the textile product for industrial materials using the same can solve the above-mentioned subject. The total fineness of the ultrafine fibers is preferably 50 to 500 dtex, and the strength is preferably 1 to 20% higher than the sea-island composite yarn strength. [Selection figure] None |