| 摘要 |
PROBLEM TO BE SOLVED: To obtain a fabric inexpensively exhibiting swelling and deepness of color or high color development and forming a high-order three-dimensional structure. SOLUTION: This combined filament yarn comprises a filament group A satisfying characteristics of (1) dry heat shrinkage percentage (SHD160)<=4%, (2) maximum shrinkage stress (σM)<=0.177 cN/dTex, (3) maximum shrinkage stress development temperature (TσM)<=85 deg.C, (4) double refractive index (Δn)>=75×10-3 and (5) specific gravity <=1.375 and a filament group B satisfying (1) dry heat shrinkage percentage (SHD160)>=20%, (2) maximum shrinkage stress (σS)>=0.265 cN/dTtex and (3) maximum shrinkage stress development temperature (TσS) >=100 deg.C. The filament group A is constituted of a filament containing >=1 wt.% of a fine pore forming agent.
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