Analysis of the bending property of kapok fiber

摘要

In this paper, a method for measuring and evaluating the bending property of kapok fibers was developed and analyzed further. Fibrous sheets of kapok and three other kinds of fibers were prepared to measure the bending rigidity by the KES-FB2 tester and then the bending property of a single fiber was calculated from the obtained values of the bending rigidity of fibrous sheets. The results indicated that the average bending rigidity of a single kapok fiber is 0.823 × 10 cN-cm~2, whereas its relative bending rigidity reaches 21.06 × 10~(-4) cN-cm~2-tex~(-2). Compared with cotton and some hollow synthetic fibers, the bending rigidity of a single kapok fiber is lower, whereas its relative bending rigidity is much higher. The results also indicated that the dependence of the bending rigidity of single kapok fiber on its linear density is in a linear relationship.