Reactive Dye Composition, Process, Or Product Patents (Class 8/543)
  • Patent number: 4264324
    Abstract: A process for dyeing or printing with a fibre-reactive dyestuff a substrate consisting of or comprising cellulosic fibres, which process comprises treating the dyed or printed substrate, at a temperature from 20.degree. to 105.degree. C. with an aqueous solution of a polymer containing carboxylic acid groups at least partially neutralized in salt form.
    Type: Grant
    Filed: July 3, 1979
    Date of Patent: April 28, 1981
    Assignee: Sandoz Ltd.
    Inventors: Jean-Pierre Chavannes, Rene Fischer, Saverio Fornelli, Francis Palacin
  • Patent number: 4242090
    Abstract: Continuous dyeing of textile webs of cellulose fibers and of mixtures thereof with synthetic fibers using reactive dyes, by applying onto the textile material an aqueous solution of at least one reactive dye in conjunction with a mixture of fixation agents of a liquid alkali water glass having a density from 37.degree. to 60.degree. Be and an alkali hydroxide solution having a density from 30.degree. to 45.degree. Be, introducing the treated material into a tank where it is heated and subjected to the action of humid heat of 81.degree. to 95.degree. C. for 5 to 180 seconds, removing it continuously from the tank and then terminating the dyestuff fixation by brief steaming or by a brief immersion into a hot sodium silicate solution.
    Type: Grant
    Filed: March 27, 1979
    Date of Patent: December 30, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventor: Hans-Ulrich von der Eltz
  • Patent number: 4226596
    Abstract: The unions consist of a mixture of fibers which can be colored with disperse dyestuffs and fibers which can be colored with reactive dyestuffs. A printing paste containing:(a) at least one finely dispersed, water-insoluble azo dye-stuff of the formula: ##STR1## (b) at least one reactive dyestuff and (c) at least one non-ionic surfactant is used. The azo dyestuff of formula I is not prepared in the printing paste. It has a melting point between 220.degree. and 300.degree. C. In the formula, A, D and R have the meanings given in claim 1.In this way, prints are obtained, from which the non-fixed dyestuffs can easily be washed out and which have an excellent white ground. The build-up and fastness properties are good. The prints are very brilliant and deep in color, in particular in the field of orange and red shades.
    Type: Grant
    Filed: November 8, 1978
    Date of Patent: October 7, 1980
    Assignee: Rohner AG Pratteln
    Inventors: Richard Peter, Hans D. Kirner, Rolf Gehrlein
  • Patent number: 4201547
    Abstract: Azo developing dyestuffs are produced by diazotizing on the fiber a mono- to tetramine derived from a metal-containing or metal-free phthalocyanine, the amino group(s) being bound to a phenyl or naphthyl group (which may be substituted) which is linked via a bridge member to the phthalocyanine which may further contain up to 3 optionally substituted sulfon amide groups and up to 3 sulfo groups, and coupling said diazotized amino onto azoic coupling components usual for preparing developing dyestuffs.
    Type: Grant
    Filed: March 20, 1978
    Date of Patent: May 6, 1980
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Erich Feess, Hartmut Springer, Paul Karacsonyi, Willy Gronen, Horst Curtius