Preparation of hardenable water soluble condensation products and finishing of textile fabrics therewith

Claim 1

THE PROCESS OF PRODUCING WATER-SOLUBLE, HARDENABLE CONDENSATION PRODUCTS ADAPTED FOR USE AS TEXTILE-FINISHING AGENTS, WHICH COMPRISES SUBJECTING A MIXTURE COMPOSED OF (1) FROM 6.9% TO 16.0% BY WEIGHT OF A WATER-SOLUBLE SALT OF SULFUROUS ACID SELECTED FROM THE GROUP CONSISTING OF ALKALI METAL SULFITES, AMMONIUM SULFITES AND THE CORRESPONDING BISULFITES AND PYROSULFITES, (2) FROM 23.0% TO 42.6% BY WEIGHT OF AN ORGANIC NITROGENOUS COMPOUND CONTAINING GROUPINGS SELECTED FROM THE GROUP CONSISTING OF AMINO-GROUPS AND IMINO-GROUPS, SAID NITROGENOUS COMPOUND SELECTED FROM THE GROUP CONSISTING OF UREA, THIOUREA, METHYLENEDIUREA, ACTYLENEDIUREA, CYANAMIDE, GUANIDINE, ALKYLGUANIDINES, DICYANDIAMIDE, DICYANDIAMIDINE, MELAMINE AND METHYLOL MELAMINE, (3) FROM 20.9* TO 44.5* BY WEIGHT OF AN OXO COMPOUND WITH THE PROVISO THAT SAID OXO COMPOUND IS IN SUFFICIENT QUANTITY TO PROVIDE 0.6 MOL OF EQUIVALENT OXO COMPOUND FOR EACH AMINO-GROUP AND IMINO-GROUP IN THE NITROGENOUS COMPOUND, SAID OXO COMPOUND SELECTED FROM THE GROUP CONSISTING OF FORMALDEHYDE, ACETALDEHYDE, ACROLEIN, GLYOXAL, FURFURAL AND METHYL ETHYL KETONE, AND (4) FROM 6.4% TO 40.2% BY WEIGHT OF A WATER-SOLUBLE, CONDENSABLE COMPOUND CONTAINING A PLURALITY OF ATOM-GROUPS SELECTED FROM THE GROUP CONSISTING OF HYDROXY-GROUPS AND AMIDE-GROUPS, SAID CONDENSABLE COMPOUND SELECTED FROM THE GROUP CONSISTING OF STARCH, DEXTRINE, PECTIN, ALKALI METAL ALGINATES, HYDROXYETHYL CELLULOSE, METHYL CELLULOSE, CARBOXYMETHYL CELLULOSE, GLUE, GELATINE, CASEIN, ALBUMIN, AND POLYVINYL ALCOHOL TO A CONDENSATION REACTION IN AQUEOUS SOLUTION AT A TEMPERATURE BETWEEN 50 AND 110*C. AND AT A PH OF 4 TO 10.