菠萝叶纤维细度分选

以无刺卡因、巴厘这两类品种的菠萝叶纤维为原料，对老叶和嫩叶所提取的纤维进行不同部位的纤维细度测定，结果表明：无刺卡因类菠萝叶老叶提取的纤维长度达到80～100 cm，尖部和根部的纤维平均细度分别为14.40、18.53 dtex，嫩叶提取纤维的长度一般在50～70 cm，纤维根部和尖部的纤维平均细度分别为13.27、14.77 dtex；巴厘类菠萝叶提取的纤维长度达到70～90 cm，尖部和根部的纤维平均细度分别为14.13、18.50 dtex，嫩叶提取纤维的长度一般在45～65 cm，纤维根部和尖部的纤维平均细度分别为13.09、15.03 dtex。经方差分析，卡因类和巴厘类菠萝叶老叶根部与尖部纤维细度存在显著差异（p<0.05）。

Fineness Separation of Pineapple Leaf Fiber

To determine the fiber fineness in different parts of the old and new leaves, the pineapple leaf fiber of smooth cayenne and comte de paris was used as the raw materials. The results showed that, the length of fiber extracted from the old leaves of smooth cayenne pineapple was ranged from 80 cm to 100 cm, and the average fiber fineness of the the tip and root was 14.40 dtex and 18.53 dtex, respectively, while the length of fiber extracted from the new leaves of smooth cayenne pineapple was ranged from 50 cm to 70 cm, and the average fiber fineness of the tip and root was 13.27 dtex and 14.77 dtex, respectively. In comte de paris pineapple, the length of fiber extracted from old leaves was ranged from 70 cm to 90 cm, the average fiber fineness of the tip was 14.13 dtex and the root was 18.50 dtex. However, the length of fiber extracted from the new leaves in comte de paris pineapple was ranged form 45 cm to 65 cm, and the average fiber fineness of the tip and root was 13.09 dtex and 15.03 dtex. Variance analysis revealed that the fiber fineness of root and tip in the old pineapple leaf showed significant difference(p<0.05)in smooth cayenne pineapple and comte de paris pineapple.