How to identify the quality of the zipper
The zipper is one of the important accessories of the garment. The zipper is related to the functionality of the garment. The qualified zipper guarantees the aesthetic and functional requirements of the garment. Therefore, when using the zipper, pay attention to the correct quality of the zipper. An easy way to identify the quality of the zipper is provided below.
Plastic steel zipper
1 visual inspection of the appearance of the zipper
Look at the color of the zipper is bright, whether the color of each component is consistent, whether there is obvious chromatic aberration; whether the tape has colored flowers, dirt and wrinkles.
Whether the surface of the element is shiny, whether the middle of the front of the element is concave, whether there is any flash at the root of the element, and whether there are obvious quality problems such as missing teeth and no teeth.
The end of the hand-held zipper is straight, flat, and wavy or curved when the zipper is in a natural hanging state.
Whether the position of the tape is symmetrical, whether there is skew or floating.
The logo on the bottom of the slider and the front of the tab is clear.
2 Detecting the feel of the zipper
Pulling the slider back and forth with your hand back and forth, the bounce of the handle is not pulsating.
When the slider is activated at the upper and lower stops and the socket, it feels that it is stopped or blocked as normal.
Whether the pull tab is flipped within the 180° range is flexible.
The pull tab is naturally placed on the zipper, and the two fastener elements are respectively pulled apart by two forces of an angle greater than 60°, and the applied tensile force should not be too large or too strong, so that the slider does not slide, indicating that the slider has its own The lock function, if the slider slides, it means that there is no lock or the self-locking force is not enough.
Hand insertion is light and flexible when the pin is inserted or removed.
The pull tab is pulled up by the hand perpendicular to the plane of the slider body, and the slider cap cannot be loosened or peeled off.
Nylon zipper
1 visual inspection of the appearance of the zipper
Appearance requirements. In addition to the common point of the injection zipper, it is also necessary to see if there is a break in the tooth head of the element and the break will affect the flat pull strength of the zipper. Whether the position of the core wire and the suture is appropriate, whether there is any anti-seam stitching during sewing, whether there is a reunion or a jump stitch; the suture should be sewn on the core wire.
2 Detecting the feel of the zipper
In addition to the common point of the plastic steel zipper, it is also applied to the surface of the fastener to see if the surface feels smooth, and the smooth and rough burr is normal.
1 visual inspection of the appearance of the zipper
In addition to the common inspection items with the plastic steel zipper, it is also necessary to see if the teeth of the chain are broken, whether the edge of the dent is cracked, and whether the fastener elements are arranged neatly.
2 Detecting the feel of the zipper
It is the same as the plastic steel zipper detection method.
