PROCESS AND DEVICE FOR THE FIXATION OF PRINTS WITH REACTIVE DYESTUFFS

    公开(公告)号:CA990908A

    公开(公告)日:1976-06-15

    申请号:CA183243

    申请日:1973-10-12

    Applicant: HOECHST AG

    Abstract: Process for the fixation of prints with reactive dyestuffs, wherein an aqueous alkaline bath which contains an inflammable organic liquid is applied onto the printed and dried material, the said organic liquid is burned off after passage of the material through air and the said material is further treated in the usual manner. This process has the advantage, in addition to the usual advantages of a continuous method of operation over a discontinuous method, that special steamers for the fixation are not necessary. The burning off process is effected in an essentially simpler apparatus, in the most simple case a burning-off duct is sufficient. Moreover, the new process requires less energy than the conventional fixing processes.

    Two-phase steaming process for fixing prints containing reactive dyestuffs to keratin fibres

    公开(公告)号:DE3518149A1

    公开(公告)日:1986-11-27

    申请号:DE3518149

    申请日:1985-05-21

    Applicant: HOECHST AG

    Inventor: ROTH KURT

    Abstract: The fixation of reactive dyestuffs to keratin fibres and blends thereof with cellulose fibres by steaming does not always lead, in particular in the presence of large patches of fabric, to acceptable dyeing results on account of the frosting and of the tippy dyeing caused by "drying-out" of the steamer. The existing defects are removed by means of the use of a two-phase steaming process, previously unknown in the case of keratin fibres, which provides for minimum-liquor application systems for the application of the fixing alkali applied to the preprint, together with the fixation of the dyestuffs in a festoon steamer.

    Process for printing with reactive and disperse dyes

    公开(公告)号:DE3430006A1

    公开(公告)日:1986-02-27

    申请号:DE3430006

    申请日:1984-08-16

    Applicant: HOECHST AG

    Abstract: Difficulties occurring in practice in the direct printing of blended materials composed of keratin and cellulose fibres with reactive dyes and of blended materials composed of polyester and keratin fibres with mixtures of disperse and reactive dyes, which hitherto stood in the way of a satisfactory shade-in-shade dyeing of the two fibre components, are eliminated by addition of ethoxylated fatty acid amides to the printing paste or appropriate preparation of the material before printing. In an analogous manner, the colouring of a discharge article on blended materials composed of polyester and keratin fibres is favoured by the fatty acid amide ethoxylates.

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