Mixed metal tanning using chrome-zinc-silica: A new chrome-saver approach
Mixed metal tanning using chrome-zinc-silica: A new chrome-saver approach
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DOI：
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发表时间：
2003
影响因子：
0.9
通讯作者：
N. Fathima;B. Madhan;J. Rao;B. Nair
中科院分区：
文献类型：
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作者：
N. Fathima;B. Madhan;J. Rao;B. Nair
为了克服现有鞣制方法带来的生态压力，必须开发新的鞣制剂。这种性质的研究也将导致更好的制革系统的发展。本文制备了一种以铬、锌、二氧化硅为主要金属配合物的制革体系。根据热液稳定性、物理强度特性和铬的析出率等因素，对鞣制体系中铬、锌、二氧化硅的含量进行了优化。制备了具有不同配体环境的鞣剂，以获得有效的鞣剂组合。皮革的水热稳定性约为95℃，铬的析出率约为90%。用这种新的鞣制系统鞣制的皮革的强度和感官性能与传统的铬鞣制系统相当或更好。
Development of newer tanning agents is necessary to overcome the ecological pressure arising from the present tanning methods. Research of such nature will also lead to the evolution of better tanning systems. In the present work, a tanning system based on the mixed metal complexes of chromium, zinc and silica have been prepared. The percentages of chrome, zinc and silica in the tanning system have been optimized based on the properties like hydrothermal stability, physical strength characteristics and percentage exhaustion of chromium. Tanning agents with various ligand environments have been prepared so as to obtain an effective combination for tanning. Hydrothermal stability of the leathers is about 95°C and the percentage exhaustion of chromium is about 90%. The strength and organoleptic properties of the leathers tanned with this new tanning system are on par with and/or better than the conventional chrome tanned system.