PL7448B1 - A method of processing smooth rayon fibers. - Google Patents

Description

Patent No. 6779 relates to the treatment of smooth fibers (stapelfaser) of rayon in that powdered, crystalline or amorphous materials are added to the fibers before the interval or the carding, and it has now turned out that instead of using because these additional materials are ready (they can be obtained by chemical transformation on fibers, or they can be destroyed by fibers, so for example, such materials that give (they can be eliminated from the solution, such as clay, calcium carbonate, barium sulphate, Calcium soap and similar substances are best fixed on the surface of the fiber or in the fiber by directly wasting them, possibly with a solution or with the aid of gases or vapors. It can be done in such a way that force first infuses the fibers with one reagent, e.g. by immersion, and then puts it in contact with the liquid containing the second reagent. In this way, the deposition takes place directly on the fibers. and partly even inside the fiber, so that the lost deposit adheres perfectly to the fiber. You can also use those reagents that remain on the fiber from previous treatment. You can also use those reagents that are usually used in dyeing for dressing fibers or fabrics, so for example, you can saturate the fibers with inert or vicious allbo salts with these similar compounds, then dry and slowly heat, resulting in metal oxides or similar compounds depositing on the fibers. Proceed as for impregnating (impregnating) weaving cloth for "giving them an impermeable coating, nip. padding the fibers with solutions of metal oxides will begin to evaporate them, or lose the sediment by means of a chemical reaction by immersing the fabric in aluminum sulphate, alumina or the like and creating an insoluble deposit by losing it with animal or other glue, or by decomposing easily decomposable salts, for example, acetic aluminate at moderate temperature, or, for example, by the preparation of insoluble soaps by impregnating a vaporous material or with metallic salt solutions and reacting with dissolved soaps. Other methods used for impregnating (impregnating) can also be used. In general, all methods by which by the formation of organic or inorganic deposits or any other way, for example, by facilitating the adhesion of grease or any other means, are suitable. by other suitable means, a rough surface and crinkle with the fiber is achieved. PL

Claims (7)

Patent claims. 1. Method for the treatment of rayon smooth fibers (stapelfaser) according to patent 6779, characterized by the fact that the additional materials are not used in a finished state, but are produced all or lost to the fiber in a dry, wet or semi-wet manner. chemical reaction before or during treatment, 2. The method according to claim According to claim 1, the characteristic point is that the fixation of the additive materials is carried out in the same way as in the treatment of fibers or fabrics in dyeing. 3. The method according to p. 1 and 2, a significant point that the fixation of additional materials is carried out as when impregnating (impregnating) fabrics in order to make them waterproof, 4. The method according to claims 1 to 3, characterized by the use of organic colloids which are then made insoluble, 5. The method according to claims 1-4, characterized in that the adhesion of the additional materials is caused by measures which generally have a positive effect on adhesion, e.g. by means of a lubricant, 6. The method according to claims 1-4, characterized by that the chemical treatment takes place simultaneously or after the chemical treatment. 7. The method according to p. 1-5, characterized by the use of previously curled fibers. Oberrhe i ni s che H a n d e 1 s g e s e 11 s c h af t m. B. H. Deputy: I. Myszczynski, patent attorney. Print by L. Boguslawski, Warsaw. PL