| 摘要 |
<p>A dope-dyed core-sheath type composition fiber. The sheath is dope-dyed with formula A comprising at least one dye or pigment. The core is dope-dyed with formula B1 with black/gray color, or formula B2 comprising at least one dye or pigment, or the combination of formulae B1 and B2. Thus the dope-dyed thermoplastic chemical fiber can be obtained by dope-dying the core and sheath of the dope-dyed core-sheath type composition fiber respectively.</p> |
