General dye-assist for synthetic fibers
    4.
    发明授权
    General dye-assist for synthetic fibers 失效
    合成纤维的一般护目镜

    公开(公告)号:US3615790A

    公开(公告)日:1971-10-26

    申请号:US3615790D

    申请日:1967-04-27

    申请人: FMC CORP

    发明人: LYTTON MARION R

    CPC分类号: D06P1/65168

    摘要: Artificial, shaped articles of polymeric material having improved dyeability are provided by the incorporation therein of sulfones containing alpha-methylene groups. The dye receptability of artificially prepared fibers, yarns, fabrics and other shaped articles in often in need of improvement, so that these materials can be deep dyed in various types of dyeing procedures. While methods for improving the dyeability of various artificial fibers, including, for example, rayons, acetates, triacetates, acrylics, modacrylics, vinyons, sarans and the like are known, such methods generally vary from one type of fiber to another.