| 摘要: | 本研究主旨在於探討不同比例之嫘縈纖維與聚酯纖維混合製成的水針不織布，藉由實驗得知樣本的吸水能力、吸水高度與擴散面積，分析對吸水性影響之因素，也從不同的基重與組織來分析，結果發現拉伸強力與聚酯纖維根數、基重及密度呈正比，厚度與纖維根數呈正比，吸水能力與基重成反比，70%R樣本之吸水性最好，吸收能力為991%，吸水高度90秒時MD(machine direction, 縱向)為8.05cm，CD(cross direction, 橫向) 為6.6cm，擴散面積為1161.14 mm2，柔軟度好，但一般使用上，50%R就達到所需的物性及吸水性，所以後續探討不同基重的吸水性與物性，得知在混合比50%Rayon/50%PET，基重40gsm時，在吸水能力983%與柔軟度MD為4.8cm與CD為1.98cm較佳，50gsm時，擴散面積1178.03mm2較佳，而60gsm，則是吸水高度90秒時MD為7.7cm，CD為5.5cm較佳，而將PET纖維斷面改成十字斷面時，吸水高度MD增加0.45cm，CD增加1.6cm，吸水能力增加為原本的1.07倍。
In this study, the water absorption of spunlace nonwoven composed of rayon and polyester fiber were evaluated. The effect of water absorption was analyzed by the liquid absorptive capacity, liquid wicking rate, and diffusion area. On the other way, basis weight and construction were also analyzed. According to the results, the tensile strength was in direct ratio to the polyester fiber radical, basis weight, and density. Additionally, thickness was in direct ratio to the fiber radical, and liquid absorptive capacity was in inverse ratio to the basis weight. Finally, the 70%R had the optimal water absorption and softness, 991% of liquid absorptive capacity, 8.05 cm (machine direction, MD) and 6.6 cm (cross direction, CD) of liquid wicking rate at 90 sec, and 1161.14 mm2 of diffusion area. Generally speaking, the 50%R had reached the required physical property and water absorption. For this reason, the physical property and water absorption of different basis weight were evaluated. When the mixture ratio was 50%Rayon/50%PET and 40 gsm of basis weight, the liquid absorptive capacity, softness of MD, and softness of CD were 983%, 4.8 cm, and 1.98 cm. The better diffusion area was 1178.03 mm2 while the basis weight was 50 gsm. At the 60 gsm of basis weight, the liquid wicking rate of MD and CD were 7.7 cm and 5.5 cm at 90 sec. When the PET fiber was X cross section, the liquid wicking rate of MD and CD showed increase of 0.45 cm and 1.6 cm, and the liquid absorptive capacity increased 1.07-fold. |
