Dyed polyester fabrics with improved lightfastness
AssigneeBurlington Industries, Inc.
InventorGeorge L. Brodmann
Life of this patent
Estimating the term…
Abstract
Photodegradation and light-stabilizing amounts of a combination of an oxalanilide UV absorber and a hindered amine light stabilizer are applied to a dyed polyester fabric providing a lightfastness rating of at least 4 AATCC Gray Scale following 100 hours WeatherOmeter exposure. Fabrics so protected are useful for automotive fabrics and draperies.
Claims17
A process for protecting dyed polyester fabrics from photodegradation of the dye and slight to severe color changes in dyed synthetic fabrics, comprising applying to a dyed polyester fabric a photodegradation- and light-stabilizing amount of a combination of at least one organic solvent-soluble UV absorber and at least one organic solvent-soluble hindered amine light stabilizer, the resulting protected fabric having a lightfastness rating of between about 4 and about 5 for up to 100 hours in a WeatherOmeter exposure.
A process for protecting dyed polyester fabrics from photodegradation of the dye and changes in color both caused by UV light, the process comprising applying to the dyed polyester fabric a photodegradation- and light-stabilizing amount of a combination of at least one organic solvent-soluble oxalanilide UV absorber with at least one organic solvent-soluble hindered amine light stabilizer, the resulting protected fabric having a lightfastness rating of at least 4 following 100 hours WeatherOmeter exposure and devoid of off tone color break.
Dependencies are inferred from the claim text.