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US 5,672,222 AGranted
Needled nonwoven fabric
AssigneeMilliken Research Corporation
InventorPaul William Eschenbach
Life of this patent
Estimating the term…
Abstract
Method to produce a nonwoven needled fabric in which the needled fabric includes 15-30% of low melt nylon 6 and nylon 12 fusible fibers to aid in holding the nonwoven fabric together when passed through an oven to melt the fusible fibers and then allow them to cool and bind the fabric together.
Claims5
A method of providing a nonwoven fabric comprising:
- blending staple length low melt nylon 6 fibers with staple length low melt nylon 12 fibers to form a blend of low melt staple fibers;
- blending the blend of low melt staple fibers with at least one higher melt staple fiber and forming them into a batt;
- needling the batt of blended fibers;
- subjecting the needled batt of fibers to a second needling to form loops in one surface thereof, subjecting the needled batt of fibers to a temperature above the melting temperatures of the low melt fibers but below the temperature of the high melt fiber for a period of time and allowing the low melt fibers to cool to provide a cohesive nonwoven fabric.
1 more element
A method of providing a nonwoven fabric comprising:
- blending staple length low melt nylon 6 fibers with staple length low melt nylon 12 fibers to form a blend of low melt staple fibers;
- blending the blend of low melt staple fibers with at least one higher melt staple fiber and forming them into a batt;
- needling the batt of blended fibers;
- subjecting the needled batt of fibers to a second needling to form loops in one surface thereof, subjecting the needled batt of fibers to a temperature above the melting temperatures of the low melt fibers but below the temperature of the high melt fiber for a period of time and allowing the low melt fibers to cool to provide a cohesive nonwoven fabric, said proportion of low melt fibers in the non-woven fabric is about 15-30%.
1 more element
Dependencies are inferred from the claim text.