04296058 is referenced by 9 patents and cites 15 patents.

The present invention provides an improvement in a process for providing a dyed, false twist texturized, fibrous material comprising at least 85 mole percent polyethylene terephthalate which is subject to variations in dye uptake induced by the false twist texturizing treatment conducted on said fibrous material prior to or concurrently with a dyeing process by enhancing the uniformity of dye uptake of the fibrous material. The enhancement in the uniformity of dye uptake is achieved by subjecting the fibrous material, which has been previously oriented but prior to false twist texturizing, to an annealing step at a specifically defined temperature for a specifically defined length of time while controlling the length of the fibrous material in a specifically defined manner.

Title
Process for enhancing the uniformity of dye uptake of false twist texturized polyethylene terephthalate fibrous materials
Application Number
5/953662
Publication Number
4296058
Application Date
October 23, 1978
Publication Date
October 20, 1981
Inventor
Herbert L Davis
Convent Station
NJ, US
John C Chen
North Plainfield
NJ, US
Agent
Thomas J Morgan
Assignee
Celanese Corporation
NY, US
IPC
D01F 1/04
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