Abstract:

For improving the softness and spinnability of the hemp fiber, softening finishing of the hemp fiber with different degumming processes was performed before combing. The mechanical properties of the combed hemp fiber before and after softening finishing were investigated. The results indicated that the breaking strength, breaking elongation, as well as moisture regain of the treated hemp fiber were enhanced, in particular, to the hemp fiber which had been subjected to mild degumming. The bending rigidity and friction factor of the treated hemp fiber were decreased as compared with those of the untreated. However, if the hemp fiber had been subjected to mild degumming, its friction factor exhibited slightly decreas. It is shown form the above facts that softening finishing facilitates the improvement of the spinnability of the hemp fiber.