2224 results about "Acrylic fiber" patented technology

An anti-microbial and / or anti-fungal synthetic fiber that comprises various thermoplastic polymers and additives in a bi-component form in either a core-sheath or side-by-side configurations. The anti-microbial synthetic fibers comprise inorganic anti-microbial additives, distributed in certain areas to reduce the amount of the anti-microbial agents being used, and therefore the cost of such fibers. The fibers can incorporate anti-microbial additives so that they are not removed by repeating washing in boiling water and in dry clean cycles and become ineffective and conversely enhance access to the additives by washing or the like. The fibers comprise high tenacity polymers (e.g. PET) in one portion and hydrolysis resistance polymers (e.g. PCT) in another portion with the additives. The fibers can further be blended with non-anti-microbial fibers such as cotton, wool, polyester, acrylic, nylon etc. to provide anti-microbial finished fabrics. In one such embodiment, binder fibers are used which are mixed with other fibers.

A yarn, fabric and garment suitable for use in arc and flame protection contains modacrylic, p-aramid and m-aramid fibers.

The invention discloses a treatment process for acrylic fiber waste water. The acrylic fiber waste water is pretreated and then is subjected to first-set electrodialysis separation to obtain organic waste water with low salt content and high-salinity concentrated water containing organic matters with low concentration; the organic waste water with the low salt content is subjected to advanced oxidation treatment to improve the biodegradability, and then is subjected to A / O biological treatment to reach the standard; the high-salinity concentrated water containing the organic matters with the low concentration is subjected to reverse osmosis desalination to obtain purified water and reverse osmosis concentrated water; the purified water is used for production; the reverse osmosis concentrated water is subjected to second-set electrodialysis concentration to produce water. According to the process method provided by the invention, on the basis of an advanced oxidation technology and a biological treatment technology, the degradation of refractory organics and macromolecule organic matters which are difficult to naturally settle is realized relatively fully and effectively by comprehensively utilizing a membrane separation technology; the degraded waste water is recycled; the obtained purified water can be used for production, so the resourceful treatment is really realized.