Detection of metal buttons

January 12, 2020

Products should undergo quality inspection before leaving the factory. Below we share the quality inspection standards for metal buttons:
1. Control samples or confirm samples. See if the color and model match the sample;
2. There should be no cracks, nicks, unevenness or obvious scratches on the button surface;
3. No cracks or bubbles on the back; no rotten edges, uneven thickness; 、
4. There should be no obvious deformation, no white eyes, white circles, etc.
5. The buttonhole should be smooth and unobstructed; the needle eye must be worn and broken, and be symmetrical and have no big eyes. If it is a dark eye clasp, the dark eye groove should be smooth and no obvious burst.
6. After plating or other processes, the effect should be uniform. If there are some special effects that are not consistent, they can be packed separately.
7. The color difference of the same batch of buttons should not be lower than the GB250 level 4 standard, and compared with the sample, it should not be lower than the GB250 level 3 standard.
8. Packing inspection, after the appearance inspection / customer required performance test is all qualified, then repacking. Certificates of conformity or other labels should be placed during packaging. The quantity of packaging should be consistent with the regulations, and the actual quantity of each bag should be consistent with the regulations. If it is found that the tolerance is different due to the thickness difference or other reasons, it shall be fully inspected.
9. Emergency button / car button / five-claw button should be tested before delivery to test the button performance and usability, and provide molds and test samples to customers.

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