Why do the lengths of the different zip sides not match when attaching the top half of a sofa / chair to the base unit?
If a product is constructed using two separate processes with the left side of the zip in one process and right in the other process and the zip sides are not matched against their original opposite side, either a special interchangeable zip is required, or the two zip halves / products should be matched at […]
Why do the lengths of the different zip sides not match when attaching the top half of a mattress to the base unit?
If a product is constructed using two separate processes with the left side of the zip in one process and right in the other process and the zip sides are not matched against their original opposite side, either a special interchangeable zip is required, or the two zip halves / products should be matched at […]
Why are seat covers showing dye stain marks against the leather material?
Check that no excess levels of sewing machine oil are being used in stitching the zip to the seat. Check the colour fastness of the seat leather, thread and zip and check for any residual chemicals left in the leather from the leather manufacturing process.