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This paper presents research results on improvement of grading process in the footwear industry, a new grading software which is suitable to manufacturing practices, can reduce deviation and increase productivity in the grading process in comparison with the manual method. According to statistical data of the Ministry of Industry and Trade, the footwear export turnover of the country amounts to $3.56 billions in 2006, exceeding the plan ($3.35 billions) by 6.1%. Vietnam footwear industry is currently the third export earner after petroleum and garment. The projected export turnover in 2010 is $6.5 billions, with the annual increase of 20%. The goal in 2010 is the production of 720 millions of footwear pairs, 80.7 million of bags and 80 sq. meters of tanned leather, which together constitute the industry export turnover of $6.5 billions. The said objectives make indispensable the application CAD/CAM in new technology and modern equipment. Shoes grading is the first component of the CAD/CAM material cutting process in footwear industry. In developed countries shoes grading is performed using specialized software of well-known brands like Lectra RomanCad of Lectra, SCS of Palmel. The said software's are however packaged into integrated systems of high cost. Currently, only a few of Vietnamese footwear companies can afford foreign made shoes grading software. For this reason local CAD/CAM systems in general and shoes grading software in particular are urgently required for having technology upgraded and fabrication equipment modernized. |
