The dyeing characteristics of Leather Black LR-V are studied and the penetration property of different dyestuffs are investigated by leather chromatoplate.
研究了被认为是无致癌性无禁用偶氮染料皮革黑LR V的染色性能，用皮革色谱板对比研究了染料的渗透性。
2
Results showed they were not only possessed of the properties of penetration, level-dyeing and emulsifying degreasing, but also the actions of dissolving interfibrillar substance.