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    Improvements in the dyeing of cellulose fibres
    37.
    发明专利
    Improvements in the dyeing of cellulose fibres 未知

    公开(公告)号：GB898958A

    公开(公告)日：1962-06-14

    申请号：GB3444158

    申请日：1958-10-28

    Applicant: BASF AG

    Inventor： BRAUN WILLY ,  EISELE JULIUS ,  KREHBIEL GUENTER ,  LANGE GUENTER ,  MUELLER ROLAND ,  RUEMENS WILHELM ,  STADLER JOSEF ,  WEISSAUER HERMANN

    IPC: D06P1/56 ,  D06P3/60

    Abstract: Cellulose fibres are dyed or printed and, if desired, simultaneously given a resistance to creasing or shrinking or given an embossed or chintz effect, by applying a dyebath or printing paste containing a dyestuff having at least one methylol group or at least one reactive hydrogen atom capable of reacting with formaldehyde to form a methylol group, but other than an aromatically bound amino group capable of reacting with formaldehyde, at least one hardenable aminoplast-forming substance containing one or more free methylol groups or their methyl ethers or the precursor of such a substance and, when a dyestuff containing a reactive hydrogen atom or a precursor is employed, formaldehyde or a compound yielding formaldehyde such as paraformaldehyde or hexamethylene tetramine, and finally heating in the presence of an acid and/or an acid-reacting substance, if desired, followed by a mechanical treatment such as an embossing, calendering or frictioning treatment. Specified dyestuffs are azo and anthraquinone dyes which may be soluble or used in the dispersed condition. Specified aminoplastforming substances are dimethylol urea, dimethyl-dimethylol urea, dimethyloldicyandiamide, methylolthiourea, dimethylolguanidine, trimethylolmelamine, diphenyldimethylolurea and the methylol derivatives of mono- and diureines, carboxylic acid amides, urethanes, polyurethanes, 1-keto-trimethylene-triamine, lactams, polyamides and ethylene ureas. The heat treatment is preferably effected at 50 DEG C.-200 DEG C. The dye liquor may also contain hydrophobing, softening, levelling, wetting and dressing agents, and solutions or dispersions of plastics, epoxy resins or polyglycolacetals, and many examples of these substances are given. Numerous examples of dyeing are also given. The process of Specification 875,712 is disclaimed. Specification 842,802 also is referred to.

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