Abstract
We studied the mechanism of button off from the knitted fabrics. It was found that the force to button off from the fabric had good relation to those geometrical values, Young's modulus of the fabric, the size of button, the size and direction of buttonhole, and the pionts pined the fabric. A model explained the force to button off was proposed, then the theoretical equations related to the force to button off, the geometrical parameters and the fabric properties were obtained. By comparison the theoretical values with the experimental values to button off, it was found that the force to button off from the knitted fabrics was explained by this model.
