New Products Of Leather Chemical Industry: Environmental Friendly Liming Agent Section To Reduce Pollution

After many years of intensive research, Shantian calcium Industry Co., Ltd., Xinxiang City, Henan Province, has tried to concentrate on the new product of high purity and high activity of fine calcium hydroxide, which is reacted with anionic surfactants. It is a new product which can replace the ordinary soot process in the traditional leather products. It is a success. The raw leather materials of general leather products are slaughtered, peeled, and cut meat.

Depilation and Liming (UnhairingandLiming): this

It is very important and a more difficult process.

There is a very decisive factor in the process of dealing with the condition of the skin itself.

After the hair removal and soaking, the raw skins and grey skins are first added with sodium sulfide and liming auxiliaries, and a certain amount of hydrated lime is added to destroy the hair, so that the lime is evenly permeated and the skin is moderately expanded, so as to open the collagen fiber (CollagenFiber) of the skin and emulsify the natural animal fat of the raw skin to facilitate the subsequent tanning process.

After the hair removal and soaking, the skin is gray (grey skin).

Split (Split), and split into flour and coconut cortex.

Instead of the traditional lime process, the special product of leather, which is used as a Liming Agent, has the characteristics of uniform expansion, strong permeability, fast speed, energy saving and environmental protection.

Dosage is lower than traditional process.

The dosage is more than 2/3; the time of soaking is shortened by more than 1/3; it saves manpower, material and electricity, and reduces the production cost.

The improvement of this process is a revolution in the traditional leather leach process, which will surely create good economic and social benefits for leather making enterprises.