1. When making molds with matching requirements, the fit between the outer circle and inner hole should be moderate and easy to install and remove. Otherwise, it will cause deformation of the geometric shape of the fasteners after being bound under force, and cause improper opening and closing tightness, leading to detachment and even damage to the clothing.
2. According to the geometric shape of the fastener, a corresponding concave and convex mold can be machined to avoid deformation and damage of the fastener's shape, which can cause looseness, detachment, and affect the appearance.
3. The thickness of the fabric should be uniform, and quality issues can easily occur when binding too thin or too thick. Especially cannot be bound onto the seam. Because the density, hardness, and thickness of the fabric on the seam increase after sewing, binding can easily cause deformation of the fasteners
4. Reasonable and correct selection of fasteners, based on the characteristics of different fabrics, can reduce or avoid quality issues during binding/use
