Colored fibers having resistance to ozone fading

Details Colored fibers having resistance to ozone fading Colored fibers having resistance to ozone fading

D - Textiles, Paper

01

F

D01F 8/12 (2006.01) A47G 27/02 (2006.01) D05C 17/02 (2006.01) D06P 3/04 (2006.01)

Patent

CA 2273588

An ozone fade resistant dyed carpet made of dyed sheath/core face fibers has a sheath substantially or completely covering the core. The sheath is composed of a fiber-forming polymer which is inherently chemically compatible and is selected from polymers that are resistant to dye migration and yet inherently chemically compatible with the core polymer. The face fibers are dyed with at least one acid dye, basic dye or disperse dye and resist ozone fading as indicated by a CIEL*a*b* total color difference from the original unexposed sample after at least 3 cycles of ozone fading that is less than one-half of the CIEL*a*b* total color difference seen for a fiber composed substantially completely of said core polyamide component that is dyed with the same dyes. The fibers may be cabled and heatset in which case even more substantial improvement in the ozone fastness is observed.

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