US 4,661,116 A · Continuous dyeing of cationic dyeable polyester fibers

Abstract

Textile fabrics formed at least partially of cationic dyeable polyester fibers are dyed in a continuous process with an aqueous dyebath comprising (a) 0 to 5 g/l of thickener; (b) cationic dyestuffs in an amount sufficient to dye the cationic dyeable polyester fibers to the desired depth of color; (c) 2 to 100 g/l of a partially sulfated adduct of ethylene oxide with an alkyl phenol or C.sub.8 to C.sub.16 fatty alcohols; (d) 2 to 60 g/l of nonionic or anionic surfactants; and (e) 5 to 50 g/l of at least one organic compound selected from the group consisting of aromatic nitrile ethers and ethoxylated chlorophenols. The fabrics are continuously dyed by padding, immersing, spraying or otherwise applying the dyestuffs, steaming the fabrics in their wet condition, and subsequently washing and drying.

Claims12

Dependent claims

A method of continuously dyeing textile fabrics comprising

(1) continuously advancing through a pad bath, a fabric formed both of cationic dyeable polyester fibers and of at least one additional fiber selected from the group consisting of disperse dyeable polyester fibers and cellulosic fibers;
(2) impregnating the fabric in the pad bath with an aqueous dyebath comprising
(a) 0 to 5 g/l of a thickener
(b) cationic dyestuffs in an amount sufficient to dye the cationic dyeable polyester fibers to the desired depth of shade
(c) at least one additional dyestuff in an amount sufficient to dye said at least one additional fiber to the desired depth of shade, said at least one additional dyestuff being substantive toward said at least one additional fiber
(d) 2 to 100 g/l of a partially sulfated adduct of ethylene oxide with an alkyl phenol or C.sub.8 to C.sub.16 fatty alcohols
(e) 2 to 60 g/l of nonionic or anionic surfactants, and
(f) 5 to 50 g/l of at least one organic compound selected from the group consisting of aromatic nitrile ethers and ethoxylated chlorophenols;
(3) continuously directing the fabric from the pad bath to and through a heating chamber and heating the fabric to a temperature and for a time sufficient to fix the dyestuffs;
and
(4) washing and drying the thus dyed fabric.

8 more elements

Dependencies are inferred from the claim text.

Continuous dyeing of cationic dyeable polyester fibers

Life of this patent

Continuous dyeing of cationic dyeable polyester fibers

Life of this patent

Abstract

Claims12