Computer-aided design for warp-knitted seamless tubular fabrics

Manual designing of double needle bar warp-knitted seamless tubular fabrics is a heavy workload,low efficient and tend to make errors.Based on the study of texture,chain notations and threading-in cycle of warp-knitted seamless tubular fabric,a new mathematical model for describing chain notations and threading-in cycle of warp-knitted seamless tubular fabric was offered.Meanwhile,detailed descriptions of design for the front,the back and the edge of tubular fabric were discussed with focuses on the lapping movement law of tube edge structure,number of bars for tube edge together with the generation and elimination of the stitchon the tube edge.With this model,warp-knitted seamless tubular fabrics can be developed visually,rapidly and exactly.