Fixation of leuco vat ester dyes by electrical current
    1.
    发明授权
    Fixation of leuco vat ester dyes by electrical current 失效
    通过电流固定色氨酸增值税染色体

    公开(公告)号:US3758394A

    公开(公告)日:1973-09-11

    申请号:US3758394D

    申请日:1971-05-27

    申请人: CIBA GEIGY CORP

    发明人: DELLIAN K

    IPC分类号: D06P5/20 B01K1/00 C07B29/06

    CPC分类号: D06P5/2016

    摘要: LEUCO VAL ESTER DYES ARE FIXED ONTO CELLULOSIC OR POLYESTER TEXITLE BY ELECTRICAL ENEGY. THE LDYESTUFF IS APPLIED TO THE TEXTILE FIBROUS SUBSTRATE IN AN AQUEOUS SOLUTION AND THE TEXTILE IS SUBJECTED TO DIRECT CURRENT FROM SEPARATE ELECTRODES. DESIRABLY, THE DYED SUBSTRATE IS DRIED AND HEATED TO CAUSE FINAL FIXATION.