Patent GB-466099-A (GB)
Title: Improvements relating to the dyeing of cellulosic fibrous materials
IPC: D06P1/66
Filed: 1935-09-18
Abstract: In the dyeing or printing of cellulosic textile fibres, e.g cotton and viscose or copper artificial silks, alone or in admixture with wool, with acid wool dyestuffs or acid sulphuric acid esters of leuco vat dyestuffs, the fibres are treated, prior to or simultaneously with the dyeing or printing operation with a solution of a compound of the general formula <FORM:0466099/IV/1> wherein X = N represents an aliphatic tertiary amine, Hal represents halogen, R represents an aliphatic hydrocarbon radicle of, at most, 7 carbon atoms, and R1 represents OR2 or NR3R4, R2 representing an aliphatic hydrocarbon radicle, R3 and R4 representing H or an organic radicle, and R2, R3, R4 or a radicle attached to the pentavalent N atom comprising a chain of more than 8 carbon atoms.  Such treatment may be effected in aqueous solution or in an organic solvent.  Alternatively, the compound may be incorporated in a spinning solution and the cellulosic fibre spun therefrom and dyed with the said dyestuffs. The following examples are specified: (1) a viscose artificial silk fabric is treated with an aqueous solution at 50 DEG  C. of the compound of the above formula in which X is trimethyl, Hal is Cl, R3 is CH3 and R4 is stearyl, and the treated fabric is hydroextracted, dried, printed with an aqueous paste containing Tartrazine, glycerol, thiodiglycol, British gum-tragacanth thickening and ammonium oxalate and is steamed and rinsed; (2) the compound of the above formula in which X is trimethyl, Hal is Cl, R3 is H, and R4 is oleyl is incorporated in a viscose spinning solution and the fibre spun therefrom is dyed with acid wool dyestuffs; (3) a viscose artificial silk fabric is treated for \ba1/2\be hour with an aqueous solution at 60 DEG  C. of the compound of the above formula in which X is (dimethyl, stearyl), Hal is Cl, and R3, R4 are each H and the treated material is hydroextracted, dried and dyed in a bath containing Acid anthracene red 3B and sodium sulphate; (4) a viscose artificial silk fabric is treated for \ba1/2\be hour with an aqueous solution at 80 DEG  C. of the compound used in (2) above and the treated material is hydroextracted, dried, rinsed, treated in a bath containing Indigosol orange HR and sodium sulphate, hydroextracted, developed in a bath containing sulphuric acid and sodium nitrite and soaped; (5) skeins of copper artificial silk are treated with an aqueous solution at 70 DEG  C. of the compound of the above formula in which X is (dimethyl, R) (R being a mixture of saturated aliphatic hydrocarbon radicles of C8 to C14), Hal is Cl, R3 is H, and R4 is dodecyl, and the treated skeins are rinsed, dyed in a bath containing Chrome yellow D, sodium sulphate and acetic acid and after-chromed with potassium dichromate. Other specified compounds of the above formula are those in which X is (dimethyl, palmityl), Hal is Cl, R3 is H, and R4 is dodecyl, those in which X is (dimethyl, stearyl), or (dimethyl, dodecyl), Hal is Cl, and R2 is methyl, and acetostearylamidomethylaminoacetic acid methyl ester chloromethylate (from dimethylaminoacetic acid stearylamide and chloracetic acid methyl ester).  Specifications 372,325 and 443,588 are referred to.  Quaternary ammonium compounds as defined by the above formula are obtainable, as regards the esters, by reaction of esters of chlorinated aliphatic carboxylic acids with tertiary amines and, as regards the amides, by reaction of the esters so produced with ammonia or amines (cf. Specification 462,967).