Some common factors for Diaper Backpack quality control:
Appearance
Quantity check
Measurement(weight & size)
Backpack loading(5kg) test
Seam strength pull test
Zipper function test
Side mesh bag bottle test
Rubbing test
Smell test
Sewing stitches per inch (6-7) test
Water proof test
3M tape test for Logo
Barcode scanning
Carton dropping test
