Production process of combined knapsack and combined knapsack

The combined backpack comprises a front part, a rear part and an inner lattice accessory, the front part and the rear part are detachably connected, the front part and the rear part are connected to form a backpack main body, the inner lattice accessory is detachably arranged in the backpack main body, and the inner lattice accessory is detachably arranged in the backpack main body. The front part comprises a front part face and a front part edge surrounding part, the front part face and the front part edge surrounding part are sewn and spliced through a flatcar, and the front part edge surrounding part is vertically sewn on the front part face so as to support the backpack body. The method comprises the steps of material preparation, piece cutting, sewing by a flatcar, edge covering treatment and packaging. The combined knapsack is packaged and transported after being disassembled, so that the occupied space can be reduced, the transportation cost is further reduced, the production process of combining a who