Microdenier fabric having enhanced dyed appearance
AssigneeMilliken & Company
InventorsHeather J. Hayes, Crystal A. Garner, Kirkland W. Vogt, Kaushal Gandhi
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Abstract
In a preferred embodiment, the present process involves subjecting a fabric comprised of conjugate yarns to an acidic treatment, which degrades a portion of one component of the conjugate yarns and to dyeing. The acid treatment, given certain reaction kinetics, removes a portion of the polyamide element of the conjugate filament. The at least partial removal of the polyamide component results in a fabric has enhanced dyed appearance, especially when dyed a dark shade. In an alternate embodiment, the fabric may also be treated with a basic solution to improve its moisture transport properties.
Claims43
A dyed microdenier fabric being comprised of conjugate filaments that are longitudinally separable into elementary filaments and having at least a first elementary filament material and a second elementary filament material, wherein said first filament material is at least partially degraded and said second filament material is dyed.
A dyed microdenier fabric having outer surfaces and an interior surface, said dyed fabric being comprised of conjugate filaments that are longitudinally separable into elementary filaments and having at least a first elementary filament material and a second elementary filament material, wherein said first filament material is at least partially degraded, said second filament material is dyed, and said first filament material is substantially concentrated in the interior surface of said dyed fabric.
A dyed microdenier fabric having outer surfaces and an interior surface, said dyed fabric being comprised of conjugate filaments that are longitudinally separable into elementary filaments and having at least a first elementary filament material and a second elementary filament material, wherein said first filament material is at least partially degraded and said second filament material is dyed, and wherein said second filament material has a substantially wedge-shaped cross-section and a dpf of less than 0.3.
A dyed nonwoven fabric being comprised of continuous conjugate filaments that are longitudinally separable into elementary filaments and having at least a first elementary filament material and a second elementary filament material, wherein said first filament material is at least partially degraded and said second filament material is dyed.
Dependencies are inferred from the claim text.