Abstract: A process for dyeing a fibrous substrate which comprises the steps of: providing a fibrous substrate; providing at least one sulfur dye; providing at least one reduction stable direct dye; and applying said reduction stable direct dye and sulfur dye to said fibrous substrate in the presence of a suitable reducing agent. Further, it has been surprising to find that these reduction stable direct dyes can be processed without a sulfur dye present. This results in a process for dyeing a fibrous substrate which comprises the steps of: providing a fibrous substrate; providing a reduction stable direct dye; and applying said reduction stable direct dye to said fibrous substrate in the presence of a suitable reducing agent.

Abstract: A process for dyeing a fibrous substrate which comprises the steps of: providing a fibrous substrate; providing at least one sulfur dye; providing at least one reduction stable direct dye; and applying said reduction stable direct dye and sulfur dye to said fibrous substrate in the presence of a suitable reducing agent. Further, it has been surprising to find that these reduction stable direct dyes can be processed without a sulfur dye present. This results in a process for dyeing a fibrous substrate which comprises the steps of: providing a fibrous substrate; providing a reduction stable direct dye; and applying said reduction stable direct dye to said fibrous substrate in the presence of a suitable reducing agent.

Abstract: A process for dyeing fibrous substrates which comprises the steps of: providing a fibrous substrate; providing at least one sulfur dye; providing at least one reduction stable direct dye; and applying said reduction stable direct dye and sulfur dye to said fibrous substrate in the presence of a suitable reducing agent. Further, it has been surprising to find that these reduction stable direct dyes can be processed without a sulfur dye present. This results in a process for dyeing fibrous substrates which comprises the steps of: providing a fibrous substrate; providing a reduction stable direct dye; and applying said reduction stable direct dye to said fibrous substrate in the presence of a suitable reducing agent.

Abstract: A process for dyeing fibrous substrates which comprises the steps of: providing a fibrous substrate; providing at least one sulfur dye; providing at least one reduction stable direct dye; and applying said reduction stable direct dye and sulfur dye to said fibrous substrate in the presence of a suitable reducing agent. Further, it has been surprising to find that these reduction stable direct dyes can be processed without a sulfur dye present. This results in a process for dyeing fibrous substrates which comprises the steps of: providing a fibrous substrate; providing a reduction stable direct dye; and applying said reduction stable direct dye to said fibrous substrate in the presence of a suitable reducing agent.

Abstract: A process for dyeing fibrous substrates which comprises the steps of: providing a fibrous substrate; providing at least one sulfur dye; providing at least one reduction stable direct dye; and applying said reduction stable direct dye and sulfur dye to said fibrous substrate in the presence of a suitable reducing agent. Further, it has been surprising to find that these reduction stable direct dyes can be processed without a sulfur dye present. This results in a process for dyeing fibrous substrates which comprises the steps of: providing a fibrous substrate; providing a reduction stable direct dye; and applying said reduction stable direct dye to said fibrous substrate in the presence of a suitable reducing agent.

Abstract: A process for dyeing fibrous substrates which comprises the steps of: providing a fibrous substrate; providing at least one sulfur dye; providing at least one reduction stable direct dye; and applying said reduction stable direct dye and sulfur dye to said fibrous substrate in the presence of a suitable reducing agent. Further, it has been surprising to find that these reduction stable direct dyes can be processed without a sulfur dye present. This results in a process for dyeing fibrous substrates which comprises the steps of: providing a fibrous substrate; providing a reduction stable direct dye; and applying said reduction stable direct dye to said fibrous substrate in the presence of a suitable reducing agent.

Abstract: Improved processes for the exhaust dyeing of cellulosic fibers with sulphur dyes in the presence of non-sulphide reducing agents wherein the dyeing of the textile substrate is performed in a closed vessel in an atmosphere of reduced oxygen level and then oxidizing.

Abstract: Polyester-cotton blend textile substrates are dyed with a disperse dye and then with a sulfur dye from the same dyebath which is maintained at a temperature no higher than 105.degree. C. when the sulfur dye is present therein and which preferably contains glucose as the reducing agent for the sulfur dye.