a) Zippers should be sewn without bending and kept straight. A certain channel is reserved between the chain teeth and the fabric to ensure that the main puller is inserted into the inner layer. Otherwise, the puller may be compressed and deformed, causing the zipper to be unable to pull.
b) Be careful when the fabric and zipper are stuck in the sewing process. If you pull hard, the zipper will break and leave traces on the surface of the chain teeth. Also,the needle should be avoid to touching the metal part of the zipper.
1.Button size lignes (L) or millimeter(mm) for diameter 1 Lignes = 0.635mm 1mm =1/25.4 inch 12L=7.62MM=5/16” 13L=8.26MM=...
Take morea) When the opening and closing is not smooth, if the chain head is pulled forcefully, the teeth will can't align with e...
Take moreThe dye in the zipper tape may react with organic materials such as plasticizer in fabrics that contain PVC coating to p...
Take more