| 摘要 |
PROBLEM TO BE SOLVED: To obtain the subject filament yarn capable of giving knitted fabrics with a combination of resilience and moderate puffiness and excellent feel of touch. SOLUTION: This combined processed filament yarn with sheath-core structure is composed of at least two kinds of polyester filaments including high- shrinkage filament >=15% in boiling water shrinkage, satisfying the following relationships: -3<ΔFL-(ΔSe70-ΔSc70)<3, 5<=ΔFL-(ΔSe150-ΔSc150) [wherein, (ΔSe70-ΔSc70) is the difference of the low-rate-of-temperature-rise shrinkage between the core and sheath yarns at 70 deg.C (%); (ΔSe150-ΔSc150) is the difference in the low-rate-of-temperature-rise shrinkage between the core and sheath yarns at 150 deg.C (%); andΔFL is the yarn length difference prior to heat treatment between the core and sheath yarns (%)].
|
