Preliminary Study Of The Functionality Of The Anti-mite And Viscose Fibers

House dust mites are intensive allergens causing allergic asthma, rhinitis and dermatitis and so on especially for infants and people with allergic constitution who are easily infected with these allergens. House dust mites live in mattress, pillows and clothes widely all over the world. It was reported that there were more dust mites in America, Germany, England and Japan than other mites. Therefore, prevention from dust mites is quite important and anti-mite textiles are developed.In this dissertation, development of anti-mite textiles is discussed in terms of method to produce them. Although the traditional finishing mite-proof textiles are predominant in the market, functional fibers with anti-mite effect are catching more attention of researchers and manufacturers due to their flexible usage and excellent durability. Then how acricides work on dust mites and kill them and requirements of acricides used in textiles are analyzed.The method to manufacture anti-mite viscose is introduced. During dissolution of pulp, acaricides are added to vessel and mixed with spinning dope via circulation and agitation in order to make sure that acaricide distribute in viscose evenly. As a result, anti-mite viscoses are proved to have good protection from dust mite. Moreover, whether scouring, bleaching and dyeing will reduce the efficiency of anti-mite of viscose are also been involved. Lots of experiments have been done and the results shows that NaOH and dyes does not work on the anti-mite effect of acaricidal viscose while bleaching apparently reduce this effect. A series of experiments are designed to optimize the parameters of bleaching. Besides, based on series of experiments, the least proportion of anti-mite viscose in blended yarn is found making sure the efficiency of mite-proof so that the cost of producing anti-mite fabrics fall down.