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Expired
Application number
GB955361A
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BASF Schweiz AG
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Ciba AG
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Publication of GB915266ApublicationCriticalpatent/GB915266A/en
D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
D06P1/38—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using reactive dyes
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Textile Engineering
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Abstract
Cellulosic textile materials are dyed or printed in the presence of an alkali and a reducing agent with a vat dyestuff of the anthraquinone series, which is free from acid groups imparting solubility in water, contains not more than 7 benzene nuclei fused together and also contains, directly bound to an anthraquinone nucleus, at least two b -halogen-propionylamino residues or a residue of the formula <FORM:0915266/IV (b)/1> in which n is a whole number not greater than 5, and X is -Cl or an aryl residue. Treatment with the reducing agent and/or alkali may be effected at the outset of or during or after the dyeing operation. An electrolyte having a neutral reaction in water may also be added, e.g. an alkali metal sulphate or chloride. In the printing process the additions usual with vat dyes may be included, e.g. potassium carbonate, hydrosulphite, "Rongalite" (Registered Trade Mark) and a thickening agent. The dyestuffs may be prepared by reacting b -chloro-propionyl chloride, cyanuric chloride or an aryl dichlorotriazine with the appropriate compound containing an acylatable amino group. Examples of the dyeing and printing of cellulose materials are given, together with methods for the preparation of the dyestuffs, the formulae of some of which appear below. The reaction product of <FORM:0915266/IV (b)/2> with b -chloropropionyl chloride, <FORM:0915266/IV (b)/3> <FORM:0915266/IV (b)/4> <FORM:0915266/IV (b)/5> <FORM:0915266/IV (b)/6> <FORM:0915266/IV (b)/7> <FORM:0915266/IV (b)/8> Specification 872,949 is referred to.
GB955361A1960-03-151961-03-15Process for dyeing or printing cellulosic textile materials
ExpiredGB915266A
(en)
METHOD FOR DYEING AND TYPING OF TEXTILE MATERIALS 1 The invention relates to a method of dyeing and printing textile materials with vat dyes. Known methods of dyeing and printing textile materials using vat dyes, which are characterized by a certain temperature, pH value, content of hydrosulfite and salt. according to which shells are used as dyes of formula IA-NH-XY-Tv i -,., where A is the residue forming a cube, X is a heterocyclic residue with two k ring nitrogen atoms linked through —NH— a group with a ring carbon atom directly or through —CO — group; Y — an oxygen or sulfur atom; R is an azo-grouped aromatic residue that is bonded to an oxygen or sulfur atom (Y) through an aromatic carbon atom; moreover, if R is a heterocyclic residue, then it is at least a six-membered heterocyclic aromatic residue; Z is the residue —NH-A 'or the residue —Y — A', where Y has the above value and A'is the residue forming the cube; n = 1 or 2, and if X is a pyrimidine residue, Z is NH — A ', A and A' are unsubstituted anthraquinone residues, —Y — R is not an unsubstituted phenoxy residue. Of particular interest are dyes of the formula I, in which residue X means quin-oxalin —CO—, quinazoline —CO— or fta-lasine —OC — residue and n ezhde all pirimi- dinostatok. The residue X may be bonded to the —Nn — bridge via the —CO — group, for example, compounds of the formula 20 NH — CO 2530 where X — preferably directly bonded to — NH — through a ring carbon atom.