The purpose of this study is to obtain the data necessary for proportional drafting and grading of the basic pattern, by statistically processing the measurements of various parts of the patterns so prepared as to cover and closely fit the upper trunks of 199 adult women respectively.
All the 199 fit patterns prepared first were strictly checked to make sure that they fully satisfied the fitting conditions specified in the checklist prepared beforehand. Then, the dimensions of various parts of the fit patterns, which were necessary for proportional drafting of the basic pattern, were measured, and based on the obtained data, the regression equations to calculate the theoretical dimensions of each part were devised. The regression coefficients for bust girth were used as grading coefficients in estimating the grading scales according to the bust girth pitch.
In this paper, the equations to calculate the dimensions of the parts such as the neckline and the armhole, as well as the grading scales for such parts, are presented.
It was clarified that the grading scales estimated on the basis of the regression coefficients in this study were smaller than the grading scales frequently used in the traditional grading of basic patterns and those actually adopted in the apparel industry. On the other hand, one of the consumers' complaints about the unfitness of the garments provided by the apparel industry is related to such parts. Judging from these findings, the theoretical methodology adopted in this study can be considered to be valid.
View full abstract