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    Water-insoluble phthalocyanine dyestuffs and process for their manufacture
    2.
    发明授权
    Water-insoluble phthalocyanine dyestuffs and process for their manufacture 失效
    水不溶性酞菁染料及其制造方法

    公开(公告)号：US3226395A

    公开(公告)日：1965-12-28

    申请号：US14251561

    申请日：1961-10-03

    Applicant: HOECHST AG

    Inventor： KURT SCHIMMELSCHMIDT ,  HERMANN HOFFMANN ,  EDWIN BAIER ,  HANS ULMER

    IPC: C09B69/00

    CPC classification number: C09B69/00

    Abstract: Water-insoluble dyes containing mercapto groups are prepared by heating a water-soluble azo or phthalocyanine dye which contains two or more thiosulphuric acid groups but is free from other water-solubilizing groups, in an aqueous solution at a temperature between about 40 DEG and 110 DEG C., if desired in the presence of an organic compound promoting solubility, with a non-oxidizing inorganic or organic acid or a mixture thereof. The starting materials are used in the form of their alkali metal or ammonium salts. Specified acids are hydrobromic, phosphoric, sulphuric, acetic, trichloroacetic, formic and, preferably, hydrochloric acid. Specified organic compounds which promote solubility are methanol, ethanol and isopropanol. The dyes may be used as pigment dyes but are preferably used to dye and print cellulose materials in alkaline medium (see Division D1). In examples the preparation of mono- and dis-azo and copper phthalocyanine dyes is described. Specification 949,956 and 953,428 are referred to.ALSO:Cellulose material is dyed padded or printed by applying thereto a water-soluble azo or phthalocyanine dye containing mercapto groups (see Division C4) in the presence of an inorganic or organic base or of a substance capable of developing alkali when heated and, if desired, heating the material during or after application of the dye. The dyes are preferably applied from alkaline liquors in which they are soluble. The material may be dyed by a long liquor process or by continuous padding-steaming or padding-drying processes. Urea is preferably added to the padding-liquors and pastes. Specified bases are sodium and potassium hydroxides, sodium carbonate, sodium bicarbonate, tertiary sodium phosphate, pyridine and quinoline. In examples the dyeing and printing of cotton is described. Specifications 949,956 and 953,428 are referred to.

    Water-soluble phthalocyanine dyestuffs containing thiosulfuric acid groups
    6.
    发明授权
    Water-soluble phthalocyanine dyestuffs containing thiosulfuric acid groups 失效
    含有硫代硫酸基团的水溶性酞菁染料

    公开(公告)号：US3236860A

    公开(公告)日：1966-02-22

    申请号：US2271960

    申请日：1960-04-18

    Applicant: HOECHST AG

    Inventor： WERNER SCHULTHEIS ,  KURT SCHIMMELSCHMIDT ,  HERMANN HOFFMANN ,  EDWIN BAIER

    IPC: C09B47/28 ,  C09B69/00 ,  D06P3/04

    CPC classification number: C09B69/00 ,  C09B47/28 ,  D06P3/042

    Abstract: The invention comprises water-soluble dyes of the formula where F is the radical of a dioxazine, triphenyl-methane, phthalocyanine or nitro dye, R is hydrogen or a hydrocarbon radical, A is an alkylene radical or an arylene-alkylene, arylene-sulphonylamino-alkylene or arylene-carbonyl-amino-alkylene radical in which the arylene group is attached to the nitrogen atom and the alkylene group to the -SSO3Me group, the aromatic nucleus of which may contain alkyl or alkoxy groups or halogen atoms, Z is -SO2- or -CO-, Me is an alkali metal ion or ammonium and n is 1, 2, 3 or 4 and which dyes may contain further groups imparting solubility in water. The invention further comprises a process for making the above dyes and dyes of the above formula where F is an anthraquinone or azo dye radical and A, R, Me, Z and n are as above, by condensing an amine of the formula with a dye of the formula wherein F is the radical of a dye mentioned above, Z and n are as above and the halogen atom is capable of reacting with the amine defined above, in an aqueous or non-aqueous medium in the presence of an acid-binding agent at a temperature from about 0 DEG to 60 DEG C. at a pH of about 7 to 10 and the dye-stuff is then precipitated as an alkali metal or ammonium salt. Examples are given. The dyes dye wool, silk, polyamides and polyurethanes from an acid bath.

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