THREE-DIMENSIONAL KNITTED SPACER FABRIC WITH NEGATIVE POISSON'S RATIO AND MANUFACTURING METHOD THEREFOR

摘要

The present invention relates to the field of textile, and provides a three-dimensional knitted spacer fabric with a negative Poisson's ratio and a manufacturing method therefor. The three-dimensional knitted spacer fabric with a negative Poisson's ratio comprises a first outer fabric layer, a second outer fabric layer, and a spacer yarn layer connecting the first outer fabric layer and the second outer fabric layer. The first outer fabric layer and the second outer fabric layer are surface structures having a negative Poisson's ratio effect. The manufacturing method comprises: providing a three-dimensional knitted mesh spacer fabric as a base fabric, and compressing or stretching the base fabric in a planar direction, so that the base fabric is formed with surface structures having a negative Poisson's ratio effect; and maintaining the negative Poisson's ratio effect in the surface structures of the base fabric by thermosetting, so as to obtain a three-dimensional knitted spacer fabric with a negative Poisson's ratio. The manufacturing method of the present invention is low in cost and easy to operate. The three-dimensional knitted spacer fabric with a negative Poisson's ratio of the present invention has a significant negative Poisson's ratio effect and good rebound elasticity, and thus has a high practicability.