Optimization Of Trousers’ Crotch Pattern Multi-factor For Male Potbelly

Potbelly, namely beer belly, is a common one in contemporary men’s bod y types, and is also a special size. The convex spherical abdomen is the main feature. At present, the ready-to-ware design and production is basically following normal physique as main consumers, and has met the daily dressing needs of the normal. Yet now potbelly group is suffering a problem that "hard to buy the trousers" because of their special body tyle. In the apparel market, the issues of specially designed clothes mainly have two aspects, "less quantity" and "poor quality", these two a spects constitute the issue of "hard to buy the trousers" together.In order to solve the p roblem of "poor quality" and deeply optimize the trousers’ crotch pattern for male potbelly, measure 31 potbelly men, get the relevant data of potbelly-body, conduct correlation analysis to the key structures, and then establish potbelly model, including four parts of "belly model", "waist-hip model", "crotch model" and "leg model", get side surface expansion of each block model by geometric method and correct the expansion structure. Finally, achieve the transformation from body to clothing and three-dimensional to two-dimensional and provide references for the linear optimization on crotch structure of male trousers for potbelly.Finally, after a full range analysis of the male potbelly body under the waist line, put forward theory of three equivalent line that include upper abdominal circumference, waist circumference and lower abdominal circumference, distribution proportion of the waist volume that "five front and four back", theory of potbelly waistline and so on, build the basic framework of crotch structure of male trousers for potbelly and get the optimal interval of potbelly hip loose, provide the systemic theory and scientific method for the structure design of male potbelly trousers in the future.