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Classification of Defects for Shoes upper materials

Classification of Defects:

One is for  Shoes upper materials of leather :

1.Leather is not according to the materials specification standards (particularly thickness / tear strength)
2.Leather parts at vamp & toe with loose-grain or finish…finish peeling…hairy (fraying)
3.White leather yellowing
4.Leather defects in vamp or toe cap area
5.Distinct colour deviations
6.Colour easily comes off
7.Edges not dyed or dyed with wrong colour
8.Long fibered velour (suede) leather

The other is for Shoes Upper Materials – Synthetic / Textile:

1.Material quality not according to material specification standards (particularly thickness / tear strength)
2.White synthetic leather yellowing
3.Edge not dyed or dyed with wrong colour
4.Distinct colour deviations
5.Weave faults
6.Delamination
7.Materials cut in wrong direction

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