50.
    发明专利
    未知

    公开(公告)号:BR9002832A

    公开(公告)日:1991-08-20

    申请号:BR9002832

    申请日:1990-06-15

    Applicant: HOECHST AG

    Inventor: MARTINI THOMAS

    Abstract: Process to obtain design effects in the course of dyeing or printing textile material in the absence of alkali or reducing agents by pretreating the textile material with a cationising agent, drying, applying an oxidising agent in the form of a design, drying, and dyeing or printing with reactive, direct, acid, water-soluble sulphur or pigment dyes in the absence of alkali or a reducing agent.

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