研究了由大端直径开始编织三维锥体织物的减纱技术，包括列向、环向减锭减纱、减细纤维束减纱等多种减纱技术及其组合；分析比较了各种减纱技术对织物结构完整性、操作简便性、机械化编织等方面的影响。减细纤维束减纱技术是特殊的环向减锭技术，具有保持织物结构整体完整、工艺操作简便、纱锭运动可实现机械化等优点，但不同纱束直径纤维编织使织物单元结构构造变得复杂多变。

Reducing-fiber technics of 3D hollow coneshaped fabric braided from big end are researched,including row-directional reducing-fiber technic, annulus-directional reducing-fiber technic, reducing-fiber technic by thinning fiber and combination of these technics. Their effects on fabric structure, operation and mechanisation are analyzed and compared. Reducing-fiber technic by thinning fiber is a kind of special annulus-directional reducing-fiber technic, which may keep structure of fabric complete, make operation simple and make motion of carrier mechanised. However, the unit structure may become complecaled with the change of the dimeter of the fiber bundle.