the most important quality requirements for shoe lining leather

test--------------requirements
-------------------------rub cycles----aniline leather----finished

rub fastness

leather, dry/test fabric, dry----100----->rating4-------->rating4

leather, dry/test fabric wet------- -50--------->rating 4-------->rating 4

Leather, wet/test fabric, dry--------50------->rating 3---------> rating 4

Leather, dry/test fabric with --------20------>rating 3--------> rating4

solution pH 9.0---------20------->rating 3------>rating

, dry/test fabric with benzene ---20--------no----------staining