The quality of clothing waste chain fabric and pull head is mainly distinguished by grades: such as A, B, and C grades, and the higher the grade, the better the quality. Specifications are distinguished by size: for example, the larger the number of large sizes such as 3, 5, 8, and 10, the larger the specification. And each size of clothing Bulk Metal Zipper has a standard weight, and weight is also the key to quality. From the outside, the main attention should be paid to: the pulling should be smooth and there should be no feeling of jerky pulling. The sound when pulling is not very loud, and the zipper teeth can be pulled by hand, which is not easy to open. In addition to the pull head, there are also large and small bottoms, and it is not easy to open between the pull head and the pull tab. The pull tab should be fixed and not easy to open, deform, and other phenomena. For clothing chains that are color sensitive, attention should also be paid to whether there is a reinforced color level. To avoid staining with the fabric, the consequences will be severe.
Installation method of zipper
1. Prepare the fabric for clothing zippers and Bulk Metal Zipper first.
2. Use a 1.5cm wide portion to loosen the area where the Bulk Metal Zipper needs to be installed, and then split the portion flat. If you don't need to zipper the entire piece, the needle spacing for the non zippered section should be finer, and the starting and ending positions should be fixed with inverted needles.
3. Align the front of the zipper with the center of the zipper, and use a hand pin to secure it with the center of the zipper.
4. Lift the fabric to the front, install the unilateral presser foot for the zipper on the machine, push the presser foot over the right side of the needle, start from the right side of the opening of the nylon zipper, and press a clear thread on the fabric in 0.7cm increments.
5. When completing one side of the seam and preparing for the other side, first look at the position of the Bulk Metal Zipper closure iron at the bottom. If you can avoid it, you can directly turn it 90 degrees and let the needle cross the zipper to the other side to start sewing. When turning, the needle should be in the low position first, then the presser foot should be raised, and then the presser foot should be lowered to continue. Dongguan Bulk Metal Zipper Factory suggests that when reaching above the zipper teeth, do not step on the electric motor. Instead, use your hand to rotate the young machine wheel and let the needle carefully pass over the zipper teeth, which may cause the needle to break.
6. If the mouthpiece iron is in the rotating position, you can only push the presser foot onto the left side of the needle, starting from the opening with a clear line on the left. Be careful not to forget to invert the needle at the beginning and end of the pressing process. Afterwards, remove the thread from the fabric.
Post time: Jul-25-2023