How to install invisible zipper?

April 28,2022

Step 1: Paste the non-woven lining to the part of the fixed zipper.

Straight non-woven interlining

The zipper part of the neckline after the lining is glued
When the lining is glued, the neckline has a clear line, the edge of the opening is straight, the left and right are corresponding, and the top of the neckline is horizontal.

Step 2: Based on the length of the zipper and the opening line, locate the height of the zipper above and below the opening line.

Locate the length of the opening based on the length of the zipper
The length of the opening is about 3 cm higher than the length of the zipper, so that the installed zipper can "stick out" to make a chalk mark.

Step 3: Change the needle and presser foot.

Special presser foot for invisible zipper
The invisible zipper is commonly known as the seamless zipper. The needle travels at the root of the zipper teeth when sewing, so the flat presser foot cannot complete this process at all.

Replace the flat presser foot and install the invisible zipper presser foot
Replace the flat presser foot and turn on the special invisible zipper presser foot (the special invisible zipper presser foot can be purchased online or for sewing accessories for a little money).

The screw at the top is to control the pressure of the presser foot.
The pressure of the presser foot, it is at the top of the machine head, if the fabric is thin, turn it up, and vice versa.

Step 4: Install the zipper

When installing the zipper, open the teeth of the invisible zipper to see a dark groove at the bottom, and sew along the dark groove

Symmetrical sewing

zipper after installation
Note: When turning, the zipper on the top and bottom of the zipper should be the same as the clothing, the sewing speed should be slowed down, and the left and right sewing should be symmetrical. The zipper that is successfully installed is compatible with the clothing. Just put it directly on the garment without sewing it.

Step 5: Finishing Sewing

zipper closure

The zipper head is the same on the left and right sides
After the zipper is installed, the outer edge of the zipper is sparsely fixed by hand-stitching and dark stitching so as to be integrated with the clothing, and no thread is exposed on the front.

Step 6: Ironing

When ironing the installed zipper, adjust the temperature of the iron to medium temperature, and iron the cloth. Do not directly touch the cashmere sweater and zipper. Iron a little, and do not iron repeatedly to prevent damage to the zipper and deformation of the cashmere at the zipper. .