Clean ecological cattle vamp leather water field production technology

Abstract

The invention relates to the technical field of tanning chemistry and engineering, and provides a clean ecological cattle vamp leather water field production technology. During implementation of the clean ecological cattle vamp leather water field production technology, lime, sulfide, ammonium salt, industrial salt and a heavy metal chromium-containing material are not used, so that main tanning pollutants such as sulfide, heavy metal chromium, ammonia nitrogen, chloride ions and the like are eliminated from sources, the environment pollution is relieved, and thus good cleanness, environment friendliness and ecology are achieved; furthermore, a whole process is simple and easy to implement, the operation is convenient and simple, and the practicality is high, so that the clean ecological cattle vamp leather water field production technology is a tannery cleaner production technology suitable for popularization and industrialization; in addition, chrome-free tanned crust leather produced by the clean ecological cattle vamp leather water field production technology is detailed, compact, soft, plump and elastic, has the shrinkage temperature of above 90 DEG C, has good follow-up processing performance, and has other physical and chemical properties meeting vamp leather requirements.

Description

technical field [0001] The invention relates to the technical field of tanning chemistry and engineering, in particular to a clean ecological type yellow cow shoe upper leather water field production process. Background technique [0002] The leather industry is a traditional industry with comprehensive advantages in China. It plays an important role in my country's economic construction, especially in foreign exchange earning through export. However, while the leather industry has created significant economic benefits, it has also caused serious pollution to the environment, especially the pollution of sulfide, ammonia nitrogen, chloride ions, heavy metal chromium, and sludge. The pollution is serious, the treatment is difficult, and the treatment cost is high. It has become a huge obstacle restricting the sustainable development of the leather industry. [0003] As we all know, the tanning process of converting raw hides into leather consists of dozens of chemical, bioche...

AI Technical Summary

Problems solved by technology

Wet blue leather will release heavy metal chromium in every process of traditional post-tanning treatment, and chrome retanning will also bring chromium pollution, which is difficult to handle

[0004] In order to solve the increasingly serious pollution problem in the leather industry, the state has set strict emission limits for the discharge of pollutants in leather making, which has greatly restricted the traditional leather making process