摘要:
A tanning process reduces discharges of liquid waste, solid waste and gaseous waste. By virtue of liquid waste recycling, the process reduces solid material digestion or decomposition, and converts wastes to reusable materials. Liquid waste and solid waste are also reduced. Chemical material volatilization is also reduced, which helps to reduce gaseous waste discharge. The liquid waste recycling procedures are implemented independently in the steps of waster soaking, liming, re-liming, de-liming and softening, pickling and chrome tanning, degreasing, re-tanning, neutralizing and dyeing. The process reduces water consumption by more than 70%, and reduces energy consumption by more than 20%. In addition, the process reduces solid waste discharge by over 70%, thereby saving 15% to 100% of chemical materials, as well as reducing air pollution caused by chemical material volatilization. The process significantly improves leather quality.
摘要:
A method of tanning an animal skin with wool or hair attached thereto wherein the animal skin is pickled in an acidic solution and thereafter tanned in a solution containing at least one tanning agent characterised in that the animal skin is pickled and tanned whilst a holding agent is present on the wool or hairs and is thereafter scoured so to remove the holding agent.
摘要:
Methods of preventing or inhibiting putrefaction, degradation, and/or deterioration of a surface of wet animal hide or skin are described. The method can include applying a composition containing at least one minimum risk fungicide to the surface or to a solid, liquid or gas that comes in contact with the surface. Treated hides or skin are further described.