Composite fabric containing bio-based fibers
AssigneeMilliken & Company
InventorRamesh Keshavaraj
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Abstract
In a first embodiment, the invention provides a composite fabric which contains a first fabric layer and a thin film. The first fabric layer has an upper and lower side and contains a plurality of synthetic polymer fibers. The synthetic polymer fibers contain at least 15% of bio-based carbon content as measured by ASTM D26866-20 Method B. The thin film is located on the lower side of the first fabric layer and contains at least 15% of biobased carbon content as measured by ASTM D26866-20 Method B. The thin film has an average weight of less than about 30 GSM and has an air permeability of less than about 1 CFM as measured by ASTM D737 @ 125 Pa.
Claims22
A composite fabric comprising:
- a first fabric layer having an upper and lower side, wherein the first fabric layer comprises a plurality of synthetic polymer fibers, wherein the synthetic polymer fibers comprise at least about 15% of bio-based carbon content as measured by ASTM D26866-20 Method B;
- a thin film located on the lower side of the first fabric layer, wherein the thin film comprises at least 15% of biobased carbon content as measured by ASTM D26866-20 Method B, wherein the thin film has an average weight of less than about 30 GSM and has an air permeability of less than about 1 CFM as measured by ASTM D737 @ 125 Pa.
A composite fabric made by the process comprising:
- forming a first fabric layer having an upper and lower side, wherein the first fabric layer comprises a plurality of synthetic polymer fibers, wherein the synthetic polymer fibers comprise at least 20% of biobased carbon content as measured by ASTM D26866-20 Method B,
- forming a thin film having an average weight of less than about 30 GSM and has an air permeability of less than about 1 CFM as measured by ASTM D737 @ 125 Pa;
- and
- attaching the thin film to the lower side of the first fabric layer.
Dependencies are inferred from the claim text.