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:
Compositions containing polyether antibiotics having reduced particle size and surface-acting agents are useful for protecting untanned animal hides against decomposition for up to 96 hours when stored at ambient temperature. Further processing of treated hides presents no environmental hazards. The present invention is useful in the preservation of hide quality of a wide variety of animals useful for tanning.
摘要:
The present invention relates to novel microorganisms and to novel enzymes obtainable therefrom. More specifically, the invention relates to a new species of the genus Hyphozyma, and to novel lipases obtainable therefrom. The invention also relates to a process for obtaining the enzymes, immobilized lipase preparations, and industrial applications of these enzymes in the paper pulp industry, for use in ester hydrolysis, ester synthesis or interesterification, and for manufacture of leather.
摘要:
L'invention concerne un procédé et une unité de traitement de peaux en vue d'en séparer la laine. Ce procédé consiste à combiner les opérations suivantes: (a) tremper les peaux dans un bain aqueux, en empilages verticaux ou inclinés (M), (b) effectuer un sabrage 8 sur le côté fleur des peaux, (c) effectuer un écharnage 10 sur le côté chair de celles-ci, (d) imprégner le côté chair des peaux au moyen d'une solution aqueuse de sulfure (11), (e) disposer les peaux séparément les unes des autres dans une atmosphère saturée en humidité à une température comprise entre 20° et 25° pendant une durée comprise entre 2 à 5 heures (12), (f) effectuer une opération de délainage (31) pour séparer la laine des peaux, (g) et rincer immédiatement la laine ainsi séparée (34-37).
摘要:
The invention discloses a method for treating an animal substrate comprising: agitating the moistened animal substrate with a treatment formulation and a solid particulate material in a sealed apparatus wherein the treatment formulation comprises a tanning agent or a tannery process agent. The method can comprise applying the tanning agent or tannery process agent to the animal substrate wherein at least some of the agent so applied originates from the treatment formulation. There is also disclosed an animal substrate obtained by the method. The treatment formulation can be aqueous.
摘要:
The invention discloses a method for treating an animal substrate comprising: agitating the moistened animal substrate with an aqueous treatment formulation and a solid particulate material in a sealed apparatus, wherein the aqueous treatment formulation comprises at least one colourant. There is also disclosed an animal substrate obtained by the method and finished leather goods obtained by the method.