中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

9 records (took 0.02 seconds)

    New azo dyes containing halomethylbenzoylamino- or halomethylbenzenesulphonylamino-groups
    8.
    发明专利
    New azo dyes containing halomethylbenzoylamino- or halomethylbenzenesulphonylamino-groups 未知

    公开(公告)号：GB917764A

    公开(公告)日：1963-02-06

    申请号：GB2860960

    申请日：1960-08-18

    Applicant: BASF AG

    Inventor： ROHLAND WERNER ,  MESCH WALTER ,  LUDSTECK DIETER ,  FEDERKIEL WILHELM

    Abstract: 1 - (4-chloromethylbenzoylamino)-8-naphthol-3:6-disulphonic acid and 1-(4-chloromethylbenzoylamino) - 4 - aminobenzene-3-sulphonic acid are prepared by reacting 1-amino-8-naphthol-3:6-disulphonic acid or 1:4-diaminobenzene-3-sulphonic acid with 4-chloromethylbenzoyl chloride.ALSO:The invention comprises azo dyes of formula wherein A is the residue of a diazo component of the benzene, naphthalene, phenylazobenzene and phenylazonaphthalene series, B is the residue of a coupling component of the benzene, naphthalene, 1-arylpyrazole and phenylazonaphthalene series, Y is a -CO- or -SO2- group and X is a chlorine or bromine atom. They are prepared by reacting an aminoazo dye of formula:- with a halomethyl-benzenesulphonyl- or benzoyl-halide or by diazotisation and coupling using appropriate components. The dyes may be used to dye and print wool, silk, synthetic polyamides and cellulose fibres, particularly cotton, in a variety of shades, the dyeing being fixed by treatment with an acid-binding agent. The dyes may also be prepared on the fibre by diazotisation and coupling. In examples: (1) the dye 1-(4-chloromethylbenzoylamino)- 4-aminobenzene-3-sulphonic acid --> 1-amino-8-naphthol-3:6-disulphonic acid is prepared; (2) the dye 1-acetylamino-4-aminobenzene-3-sulphonic acid --> 1-naphthol-4-sulphonic acid is prepared, hydrolysed with hydrochloric acid and the resultant aminoazo dye condensed with 4-chloromethyl-benzoyl chloride; (3) an aqueous solution containing sodium hydroxide and 1-(4- chloromethylbenzoylamino)- 8- naphthol-3:6-disulphonic acid is applied to cotton fabric which is then dried and heated to the coupling component and the treated fabric padded with a diazo solution of sulphanilic acid to give a violet dyeing. Many further examples are specified.

    Improvements in the washproof and boilproof fixation on textiles of cellulose of compounds capable of forming azo dyestuffs
    9.
    发明专利
    Improvements in the washproof and boilproof fixation on textiles of cellulose of compounds capable of forming azo dyestuffs 未知

    公开(公告)号：GB848776A

    公开(公告)日：1960-09-21

    申请号：GB2559

    申请日：1959-01-01

    Applicant: BASF AG

    Inventor： ROHLAND WERNER ,  MESCH WALTER ,  EISELE JULIUS ,  FEDERKIEL WILHELM

    Abstract: In the formation of azo dyestuffs on cellulose fibres, the coupling component or the diazotisable amine is first fixed on the fibre in a washproof condition by treating the fibre, in the presence of an acid-binding agent, with a compound of the formula: wherein R represents a hydrogen atom, an alkyl, aryl, aralkyl, cycloalkyl, halogenoalkyl, hydroxyalkyl or acyl group or a second radical -D-O-E, D represents a linear or branched-chain alkylene radical which may carry halogen atoms and/or further non-esterified hydroxyl groups, E represents an -SO3 radical, an -SO2-alkyl radical or an -SO2-aryl radical and A represents the residue of a coupling component or the residue of an aromatic or heterocyclic compound having a diazotisable amino group. Numerous compounds of the above formula are specified, and when the compound contains the residue of a diazotisable amine, the amine group may first be protected by acylation, the amine then being fixed on the fibre and subsequently treated with alkali to effect deacylation prior to diazotisation. Specified acid-binding agents, which may be applied before, together with or after the compound, are sodium and potassium hydroxides, carbonates, bicarbonates and acetates. Fixation may be effected at 40 DEG -200 DEG C., by heating or steaming. The process is applicable to dyeing and printing techniques.

Patent Agency Ranking