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US 5,824,614 AGranted
Articles having a chambray appearance and process for making them
AssigneeBASF SE
InventorDean R. Gadoury
Life of this patent
Estimating the term…
Abstract
Articles made from melamine fibers and aramid fibers are dyed at selected conditions and with selected dyes such that the aramid fiber is dyed but the melamine fiber is not.
Claims4
A heat and flame resistant chambray fabric comprising:
- from about 20% to nearly 100% melamine fiber that is substantially undyed when exposed to basic dyestuffs in a dyebath;
- and
- dyed aramid fiber that is dyed with basic dyestuffs when exposed to said dyestuffs in a dyebath such that said fabric exhibits a chambray appearance.
Dependencies are inferred from the claim text.