PL3659B1 - Dyeing method. - Google Patents

Description

The present invention relates to a process for dyeing and printing fibers of all kinds using aluminum and magnesium orthhes as reducing agents to reduce molybdates, tungstates, ferrocyanides. These orthetes are also used with iodides and bromides to release iodine and bromine; in the latter case, in the presence of e.g. fluorescein. Clay and magnesium have strong reducing abilities regardless of the reaction environment and emit hydrogen when in contact with water. The vortex can be easily prepared in a few minutes by immersing strips, wire or chips aluminum in cyanide or mercuric cyanoxide solution in an amount of one or more parts per 1000; the reaction is also rapid when hot and cold. After washing with large amounts of water, aluminum ortec converts nitrates into aisitins, reduces molybdates and tungstates, releases bromine and iodine from bromides and iodides, etc. Examples for reducing molybdates. Blue colors of molybdenum acid are already used on silk. They are formed by treating them with ammonium mclibdehyde, passing through hydrochloric acid and then without washing the tin chloride bath, and finally washing and drying. The methods described below are simpler and allow the use of a small amount of molybdate. Example 1. 20 liters of water + 20 g of ammonium molybdate + 100 to 200 cm3 of common hydrochloric acid + 10 to 20 gels of glimium in the form of foil, wire or packets at a temperature rising to that until the reaction starts on the ddhra bath of Vaibat it turns blue; in order to cool it off, the foarwai sowed stronger, and then hydrogen was leaking out. After immersion in this bath, the fabric turns a light blue color. The artery can be wrapped in the bag and then reddened. This method is not suitable for the use of tin salts. Example 2: This example allows the production of different shades from orange. to red by treatment of the fluorescein iodine hub with bromine, obtained from iodates or bromates by means of vulcanized orthotics. For a 20 liter bath, 1.50 g of fluorescein, 10 g of iodate or 25 to 30 g of bromate and 100 to 100 g of bromate are taken. 200 g of hydrochloric acid. The fabric or fibers] are introduced into an Ortec bath in an amount of about 20 g, preferably padding. Reactions are best initiated at summer temperature. The fabric is removed as it turns to the desired shade. The amount of bromate or iodate can be reduced, depending on the desired shade. Magnesium has a similar effect, and even shows a certain amount of thinness, because the lost magnesia is easier to dissolve in the bath than clay, and i 'i: i ¦' ¦; i The same ortets reduce nitrates to nitrites and decolorize indigo in the presence of sulphites or disulphites, which can be used from a dye or dye stand for full or partial dyeing or for spot etching. In these cases, the ortheta impersonates in densities. PL

Claims (4)

Patent claims. 1. A method of dyeing or printing fibers of all kinds, characterized by the use of aluminum or magnesium cmtet forces, acting as reducing agents, very sensitive to dilute solutions of mdlibdeniaim, tungstate or ferrocyanide, etc. in a colloidal state. 2. Method for dyeing or printing any kind of fibers according to claim The method of claim 1, characterized in that a measured ortet is used in the presence of bromates, iodates, and compounds of the type of fluorescein which are changed by the released halogens. 3. A method for dyeing or printing fibers of all kinds according to claim The method of claim 1, characterized in that the reduction of nitrates to nitrites by the orthoses is used, which makes it possible to develop any colors produced by nitrite. 4. A particular method for obtaining the aluminum or magnesium orthosis according to claim 1, The method of claim 1, wherein the aluminum or magnesium is treated with any mercury salt, but with mercury cyanide or mercury cyanoxide. Societe dlExploitation des Procedcs Esc a ich. Deputy: M. Skrzypkowski, patent attorney. ¦laiBLlOTilKAl Druk L. Boguslawski, Warsaw. j ^ | r / - '<patent j PL