¿Por qué corre el deslizador muy pesado o duro?
Check that there is no special process such as turning out the bag that creates high pressure on the slider pushing the slider against the bottom end of the opening. Check that there is sufficient clearance to allow the slider to run smoothly without rubbing against the fabric / leather of the item or the […]
¿Por qué el deslizador no cierra la cadena?
Verifique que el deslizador y la cadena son del mismo proveedor y que son de los tamaños correspondientes.
¿Por qué el el cierre se curva o abulta después de coser cadena continua de cierre al producto?
Spiral / coil zips have an S twist and Z twist in the teeth creating a ‘smile’ or ‘frown’ appearance when the teeth are joined. The left and right teeth should be both in the same direction/condition. If this is not the problem, check the sewing tension is equal on both sides of the zip.