Establishment of mathematical model of round collar of knitted woolen sweaters

To gain an insight into the size change rule of the round collar,based on the basic collar opening of Japanese culture style women dress( 160 /84A),the collar opening is made wider and neck depth deeper of the basic collar patterns of the cross open collar,and front and back straight open collars. Under a given opening of the cross open collar,the arch line length of the front and back collar opening of the knitted woolen sweater with different neck depths are measured separately and statistical analysis is conducted of the data obtained to gain the change rule of the arch line length. A math model of the arch line length of the front and back collar opening of round collar of the knitted sweater is built using regression analysis. The findings may provide some reference for the pattern design of the round collar of the knitted sweater and garment intelligent production.