Straining Flow Spinning is a versatile and robust spinning technique for the production of regenerated silkworm silk fibers using mild chemistries. However, reaching high values of tensile strength and strain at breaking requires a step of wet-stretching in water, which limits scalability and the practical usage of the technique. Here, we show that adding a post-spinning drawing step to the procedure improves the performance of the fibers, and allows the development of a scalable process. It is also shown that the properties of the fiber can be tuned by varying the parameters of the post-spinning step. Finally, equivalence is established between the discrete wet-stretching process and the continuous post-spinning drawing step.

应变流纺是一种使用稳健的化学方法生产再生蚕丝纤维的通用且坚固的纺丝技术。但是，要在断裂时达到较高的拉伸强度和应变值，则需要在水中进行湿拉伸步骤，这限制了该技术的可扩展性和实际应用。在这里，我们表明向该过程添加纺丝后拉伸步骤可改善纤维的性能，并允许开发可扩展的过程。还表明，可以通过改变纺丝后步骤的参数来调节纤维的性能。最后，在离散的湿拉伸工艺和连续的后纺拉丝步骤之间建立了等效关系。