1. First, choose leather with dirt resistance and wear resistance, which is slightly thick and not easy to wrinkle. This time, it is still a versatile denim fabric. The fabric is cut according to the estimated size of the bag. Secondly, the cloth is folded in half, and the side that does not need to be sewn is used as the bottom edge. Be careful not to sew from the opening, because it will make the bag look bad and leave the thickness of two books.
Then deal with the gap left by the previous step. Cut the top edge according to the size of the item, and pay attention to the size of the top edge seam.
Finally, roll the top into two layers and sew the last two edges with needle and thread. There are three layers of cloth when sewing this side, which is thicker. It is best to use a hard needle to lead. After the two sides of the top surface are folded, they can be nailed with hidden buttons or glued with cloth strips.
2. Tools: slicing knife, pliers, awl, round trimming machine, hammer oil, adhesive, needle and thread, trimming machine, snap-in tool, hand sewing fixture and dye.
According to the finished cardboard, cut into leather pieces of different specifications with a leather knife. Dyeing, edge sealing, edge dyeing with dye, and edge polishing with an edge trimmer. Install the button, punch a hole with a circular cutting tool, and then install the button. Draw sewing thread, adjust the sideline device and draw sewing thread range along the leather edge. Draw the needle and thread spacing, and draw the line spacing with a diamond shape to keep the line spacing consistent. Hand sewing fixture tightens leather and stitches along the line. Trim, trim with a trimmer.
Trimming, dyeing, drawing sewing thread, sewing thread, trimming, edge sealing and dyeing. The bottom of the bag is the same as above. Draw an edge line along the edge of the bag with an edge trimmer, then sew it, edge it with an edge trimmer, seal it with an edge trimmer, and dye it with dye. Bagging: punching the pretreated bag and sewing it on the bag. Oiling, wetting the cloth with cow's foot oil, smearing it on the jewelry bag, and naturally drying it to make the cowhide bag.