Abstract:

Due to complicated and challenging design techniques of multi-bar Raschel laces, a specific design method was presented for the multi-layer visual effect, which was a key element for the quality evaluation. Based on knitting material, knitting method, color combination and shape composition visual features of laces, factors on the multi-layer visual effect are primarily analyzed, including the yarn fineness, yarn illumination, structures combination, pattern colors and their layout. Based on these factors, a detailed design method of multi-layer effect was proposed which is practical for designing main patterns in the forms of physical figures, geometries and abstract shapes. Moreover, attention was also paid to the differences between multi-layer design techniques when designing patterns with different spatial layouts, structure combinations and layer arrangements. By illustrating two design examples, the proposed design method is proved to be practical and efficient on enhancing multi-layer visualization.

Key words: warp knitting, multi-bar Raschel lace, main pattern, pattern layout, multi-layer design