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    Dyeing and/or printing textile materials
    26.
    发明专利
    Dyeing and/or printing textile materials 未知

    公开(公告)号：GB1013236A

    公开(公告)日：1965-12-15

    申请号：GB560764

    申请日：1964-02-11

    Applicant: BASF AG

    Inventor： TARTTER ARNOLD ,  FEDERKIEL WILHELM ,  ROSENKRANZ MAGNUS

    IPC: C09B47/08 ,  C09B47/32

    Abstract: Metal-free or metalliferous phthalocyanine dyes of the formula in which Pc is a phthalocyanine radical, R1 is H or an aliphatic radical, R2 is an aliphatic, araliphatic, aromatic or cycloaliphatic radical and in which R1 and R2 are free of substituents which react with the OH-groups of cellulose, Y is an anion and m is an integer 1-6, are obtained by reaction of a compound with an amine and, if desired, by conversion of the reaction product into a salt of an acid other than hydrohalic. Suitable metals to be contained in the phthalocyanine residue are Cu, Co, Ni or Fe. The term "phthalocyanine residue" includes those residues substituted by halogen or aryl attached direct or via bridge members as well as azaphthalocyanines and their phenyl derivatives. A number of suitable amines are specified, some of which have one or more of the following groups in their groups R1 and R2: hydroxy, methoxy, ethoxy, cyano and mercapto groups. Examples are given.ALSO:Textile materials of natural or regenerated cellulose are dyed and/or printed with an acid liquor or paste containing a water-soluble phthalocyamine dye of the formula wherein R1 is H or an aliphatic radical, R2 is an aliphatic, araliphatic, aromatic or cycloaliphati radical said radicals R1 and R2 being free from substituents which react with cellulose under acid conditions, Y is an anion and m is an integer between 1 and 6. The above dyes may be derived from metal free or Cu, Co, Ni or Fecontaining phthalocyanine halomethyl compounds which are reacted with monoamines, especially secondary amines having a total of 3-12 C atoms. The anions may be radicals or inorganic or organic acids or acid salts of polybasic acids. The dye liquors and partes preferably have a pH of 3-4 for which purpose acids may be added and may contain neutral salts and the usual auxiliaries. Dyeing may be accomplished by known methods, e.g. the exhaust process or the pad-steam, pad-hot air or pad-batch method. Printing may be carried out using an emulsion printing paste. Examples of dyeing and printing cotton and spun rayon are given.

    Dyeing polyolefine materials
    27.
    发明专利
    Dyeing polyolefine materials 未知

    公开(公告)号：GB940495A

    公开(公告)日：1963-10-30

    申请号：GB889962

    申请日：1962-03-08

    Applicant: BASF AG

    Inventor： HENSEL WALTER ,  ROSENKRANZ MAGNUS

    IPC: D06P1/22

    Abstract: Polyolefin materials are dyed by applying from an aqueous bath a vat dye in finely divided form and fixing by the action of heat. The vat dyes should be finely dispersed in the dyebath having a particle size 0.1-3 microns, advantageously with the aid of dispensing agents such as naphthalene sulphonic acid/formaldehyde condensates, sodium H-benzylsulphanitate and sulphite cellulose waste liquor. The dyes may be applied in the form of their vat acids which are prepared by reducing the vat dye conventionally to the leuco dye salts in an alkaline solution containing sodium dithionite, salts of hydroxyalkane-sulphinic acids or their reaction products with ammonia or amines, thiourea dioxide, potassium borohydride or glucose and then liberating the vat acids by neutralising or weakly acidifying with, for example, acetic acid preferably in the presence of dispersing agents of the above mentioned type. The dyes may be applied by impregnation or padding at 40-80 DEG C. and then preferably dried. Fixation is achieved at a temperature between 100 DEG C. and the softening point of the material, heating by means of infrared radiation, hot air, contact with heated rollers or baths of molten metal. If the vat dyes have been fixed on the material in unreduced form finishing may be achieved by rinsing, soaping and drying; otherwise an oxidative treatment with atmospheric oxygen, hydrogen peroxide, alkali metal perborates, persulphates or dichromates, if desired in a hot aqueous bath, is introduced. In the case of the dye being fixed in the form of its vat acid it is preferred that it is first converted to the leuco dye salt with an alkaline reducing bath and then re-oxidised and finished as above. Examples of dyeing fabrics of polypropylene fibres are given. Specification 906,899 is referred to.

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