Development of chemical mu00e9ltipla funu00c7u00e7o made of polyvinyl aluminium for skin tanning and caleadas animal, vegetable and mineral summary (leather industry): descalcinante, degreasing, acid washing and pre-filled mineral tanning

摘要

Development of chemical mu00e9ltipla funu00c7u00e7o based polyvinyl foil for skin tanning and caleadas animal, vegetable and mineral summary (leather industry): descalcinante, degreasing, pre tanning mineral and acid wash.The present invention patent product, is characterized by the development of descalcinante (a), (b) degreasing, pre tanning / P u00ed quel (c) and (d) for acid washing caleadas animal skins and hides the basis of aluminium chloride (5).The innovative aspect of this project is the use of an inorganic polymer (5) capable of removing the calcium bonded structure to colagu00eanica with high efficiency, besides adding in advance a metal tanning present in that product, which provides greater stability hidrotu00e9rmi Ca, physical strength and gain area to the leather.There is no formation of soluble salts of calcium, which guarantees through the use of this large molecule leaching of chemical element calcium, this fact will provide greater fixation of the metal tanning and chrome, zirconium and aluminum, in addition to vegetable tannins and synthetic dyes. Oils.The manufacturing process of poly aluminum (PAC) (5) has as the raw material hydrochloric acid (3), aluminum metal (2) and alumina (1) in open or closed pressurized reactor (4), used in the paper industry, water treatment, such as coagulant and flocculant, among others. Applications of smaller volume.Being that this patent presents technical and scientific developments and results, which will foster new applications in abundance in the leather industry, which are the descalcinau00e7u00e3o (a), (b) degreasing, pre tanning / P u00ed quel (c) and (d) acid washing of animal skins and hides wet caleadas (6) Blue (chrome tanned) (7) and the wet white (aluminum, phenolic compounds, tannins and plastics plant) (8).Another innovative aspect of this invention, consists in the treatment of residual water generated in the processing of hides and skins, knowing that this molecule has the characteristic of coagulant.Conventionally, are used products of ammonia and organic acids are weak in the process of descalcinau00e7u00e3o, which have a relatively high cost compared to the chemical developed (5), in addition to favouring the degrease (b) a pre tanning / P u00ed quel (c) and lava Gem acidic leather wet blue (7) and the wet white (8). MV this product may be used in P u00ed quel as pre tanning (c) and acificau00e7u00e3o / polarization structure colagu00eanica, replacing organic acids and minerals, with a MV at this stage also threefold function: polarization of dermal structure, pre tanning and coagulau00e7u00e3 The impurities present in the bath residualAnd this coagulation process means that the unwanted particles to resume and attach on the skin of animals (bovine, porcine, caprine, among others) and hides, taking the clean and homogeneous, inhibiting deposits of grease, tanning and other impurities.