Process for producing selective caustic crepe using reactive dyes

    公开(公告)号:DE3625699A1

    公开(公告)日:1988-02-04

    申请号:DE3625699

    申请日:1986-07-30

    Applicant: HOECHST AG

    Abstract: Causticisation-based local crimp (curl) effects together with identical colour patterns in the piece can be obtained by using reactive dyes in the crepe resist (reserve) which constitutes a combination of mixtures of reactive polysiloxanes with self-crosslinking copolymer dispersions based on acrylate or butadiene. And the effectiveness of such a specific coloured crepe resist, applied as first print (preprint), is at the same time successfully utilised as a mechanical dye resist for subsequent overlappingly applied ground pastes (colours) composed of reactive dyes. By further addition of chemical resisting agents to the crepe resist the attainable colour effects are made still more varied in the cross-dyeing (over-dyeing).

    2.
    发明专利
    未知

    公开(公告)号:DE58906165D1

    公开(公告)日:1993-12-16

    申请号:DE58906165

    申请日:1989-09-30

    Applicant: HOECHST AG

    Abstract: Triphendioxazine reactive dyes have been found to be unsuitable for almost all conventional single-stage printing processes since these dyes are unstable under the conditions of said processes. … In the course of the development of an uncomplicated single-stage printing process for these dyes it has now been found according to the invention that by replacing the customary fixing alkali (NaHCO3) by stoichiometrically determined amounts of sodium acetate or sodium trichloroacetate or certain mixtures of sodium trichloroacetate with sodium acetate it is possible to fix triphendioxazine reactive dyes in full yields without hue change. Conventional print pastes may be applied at the same time.

    4.
    发明专利
    未知

    公开(公告)号:ES2047639T3

    公开(公告)日:1994-03-01

    申请号:ES89118137

    申请日:1989-09-30

    Applicant: HOECHST AG

    Abstract: Triphendioxazine reactive dyes have been found to be unsuitable for almost all conventional single-stage printing processes since these dyes are unstable under the conditions of said processes. … In the course of the development of an uncomplicated single-stage printing process for these dyes it has now been found according to the invention that by replacing the customary fixing alkali (NaHCO3) by stoichiometrically determined amounts of sodium acetate or sodium trichloroacetate or certain mixtures of sodium trichloroacetate with sodium acetate it is possible to fix triphendioxazine reactive dyes in full yields without hue change. Conventional print pastes may be applied at the same time.

    5.
    发明专利
    未知

    公开(公告)号:DE3833864A1

    公开(公告)日:1990-04-12

    申请号:DE3833864

    申请日:1988-10-05

    Applicant: HOECHST AG

    Abstract: Triphendioxazine reactive dyes have been found to be unsuitable for almost all conventional single-stage printing processes since these dyes are unstable under the conditions of said processes. … In the course of the development of an uncomplicated single-stage printing process for these dyes it has now been found according to the invention that by replacing the customary fixing alkali (NaHCO3) by stoichiometrically determined amounts of sodium acetate or sodium trichloroacetate or certain mixtures of sodium trichloroacetate with sodium acetate it is possible to fix triphendioxazine reactive dyes in full yields without hue change. Conventional print pastes may be applied at the same time.

    7.
    发明专利
    未知

    公开(公告)号:MX170442B

    公开(公告)日:1993-08-23

    申请号:MX1785489

    申请日:1989-10-05

    Applicant: HOECHST AG

    Abstract: Triphendioxazine reactive dyes have been found to be unsuitable for almost all conventional single-stage printing processes since these dyes are unstable under the conditions of said processes. … In the course of the development of an uncomplicated single-stage printing process for these dyes it has now been found according to the invention that by replacing the customary fixing alkali (NaHCO3) by stoichiometrically determined amounts of sodium acetate or sodium trichloroacetate or certain mixtures of sodium trichloroacetate with sodium acetate it is possible to fix triphendioxazine reactive dyes in full yields without hue change. Conventional print pastes may be applied at the same time.

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