Epoxypropyl ammonium salt and boric acid assisted dyeing process
AssigneeManufacture de Produits Chimiques Protex
InventorJean Balland
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Abstract
A process for the dyeing or printing of textile materials wherein, to improve the color rendition or the ability of the textile material to absorb the dye, the textile material is treated with a propylepoxyammonium salt having the formula ##STR1## in which R', R.sup.n and R.sup.m are alkyl radicals, preferably lower alkyl containing 1 to 3 carbon atoms and X.sup.- is an anionic group selected from the sulfate, sulfonate, phosphate or halogenide (fluoride, chloride, bromide or iodide). The fabric is subjected to an elevated temperature (thermal treatment). To prevent yellowing of the textile material the latter is also treated with boric acid.
Claims6
In a process for the treatment of textile material to improve the dyeing or printing thereof, the improvement which comprises the steps of:
- a. applying to said textile material an epoxypropylammonium salt having the formula:
- ##STR4## in which R', R.sup.n, R.sup.M are lower alkyl radicals and X- is an anion selected from the group which consists of sulfate, sulfonate, phosphate and halogenide;
- b. fixing the salt upon the textile material at least in part at an elevated temperature;
- and
- c. treating the textile material prior to the application of said elevated temperature thereto with boric acid in an amount sufficient to avoid all yellowing of the fibers of said material and to prevent any detrimental action of urea at the elevated temperature.
Dependencies are inferred from the claim text.