41284-39-3Relevant academic research and scientific papers
Disperse brown and preparation method thereof
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Paragraph 0147-0149, (2021/11/03)
The invention provides disperse brown as well as a preparation method and an application thereof, and relates to the technical field of dye chemical industry. The disperse brown dyed polyester fiber and the blended fabric thereof present special reddish brown, can be used in a single color, and can also be used in combination with alkali-resistant disperse dyes in other colors; the disperse brown has a unique molecular structure, so that the disperse brown has the characteristics of excellent alkali resistance, oxidation resistance and the like, and solves the technical problems that a disperse dye is difficult to apply to general alkaline printing and dyeing processing, a scouring and dyeing one-bath process, a bleaching and dyeing one-bath process and a disperse active one-paste printing process; and the technical effects of excellent fastness performance and dyeing performance are achieved.
Monoazo dyes which are free from water-solubilizing groups and which contain a fluorosulphonyl group and process for colouring polyamides and polyester materials therewith
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, (2008/06/13)
A process for coloring a synthetic textile material or fibre blend thereof which comprises applying to the synthetic textile material a compound or mixture thereof, which is free from water solubilizing groups, of Formula (1): wherein A and D each independently is an optionally substituted heterocyclic or carbocyclic group and at least one of A or D carries directly at least one --SO2 F group or carries a substituent to which at least one --SO2 F group is attached except for 4-(4-fluorosulphonylphenylazo)-N,N-dimethylaniline, provided that one of A or D is not 3,5-difluorosulphonylthien-2-yl, optionally substituted 1-phenyl-pyrazol-4-yl-5-one or STR1 or that one of A or D does not carry an --NCH2 CH(OH)CH2 Cl, --NCOCH2 Cl or --NCH2 CH2 SO2 F substituent. The presence of one or more --SO2 F groups in a dye molecule generally improves the properties of that dye and confers surprisingly good wet fastness and light fastness properties.
