Production method of aliphatic diol and with the m benzene di-carboxylic acid diester 5 sulfonic acid sodium or the kalium are improved copolymerization ester and its fiber which possess the side chain

摘要

As for this invention, being production method of aliphatic diol and with the m benzene di-carboxylic acid diester 5 sulfonic acid sodium or the kalium are improved copolymerization ester and its fiber which possess the side chain, as for the aforementioned copolymerization ester, terephthalic acid and ethylene glycol and the m benzene di-carboxylic acid diester 5 sulfonic acid sodium or making the monomer copolymerize which includes with the kalium and the aliphatic diol which possesses the side chain, it regards the production method of being something which becomes. The aforementioned method includes the process below. Copolymerization synthesis of copolymerization ester: Pouring with ethylene glycol and terephthalic acid in the first esterification autoclave, to ester to convert, the m benzene di-carboxylic acid diester 5 sulfonic acid sodium or the kalium entering the second esterification autoclave, next, the reactant to throw furthermore to ester convert, the aliphatic diol which possesses the side chain to the first esterification autoclave, to the second esterification autoclave, to the ester reaction here, with ethylene glycol and terephthalic acid to throw or the aliphatic diol which possesses the side chain with the m benzene di-carboxylic acid diester 5 sulfonic acid sodium or the kalium to throw to participate, after that, the reactant entering the condensation polymerization autoclave, condensationYou make polymerize, can obtain the product of copolymerization ester, mol ratio of the training quantity of terephthalic acid and ethylene glycol and possesses the side chain aliphatic diol and the m benzene di-carboxylic acid diester 5 sulfonic acid sodium or the kalium which are the reaction raw materials at the time of copolymerizing, is the 1:1.1 - the 2.4:0.05 - the 0.20:0.015 - 0.07. The aforementioned copolymerization ester makes the fiber with system of the continual polymerization and direct spin. As for the fiber which is obtained, under condition of boiling dyeing of the normal pressure, it is possible to dye to the deep color, making use of the cationic dye or the detachable dye at the same time in order crystal efficiency of this copolymerization ester and to decrease glass conversion temperature, the fiber is obtained touch very softly, the textile goods alkali extraction are not necessary, the staple has also anti- piringu characteristic. Production method of this invention there is no special request in the device, at the same time cost is low, production of industrialization is easy to actualize.