US 12,331,438 B2
Insulating double-knit fabric
William Michael Rose, East Hampstead, NH (US); Gary S. Smith, Lee, NH (US); Marina Kozera, Portland, OR (US); William Patz, Belmont, NC (US); and Gadalia Vainer, Melrose, MA (US)
Assigned to Milliken & Company, Spartanburg, SC (US)
Filed by MMI-IPCO, LLC, Spartanburg, SC (US)
Filed on Jun. 7, 2023, as Appl. No. 18/330,735.
Application 18/330,735 is a continuation of application No. 16/130,657, filed on Sep. 13, 2018, granted, now 11,725,310.
Claims priority of provisional application 62/692,012, filed on Jun. 29, 2018.
Claims priority of provisional application 62/557,950, filed on Sep. 13, 2017.
Prior Publication US 2023/0313423 A1, Oct. 5, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. A41D 31/06 (2019.01); D03D 11/02 (2006.01); D03D 25/00 (2006.01); D04B 1/16 (2006.01); D04B 1/24 (2006.01)
CPC D03D 11/02 (2013.01) [A41D 31/06 (2019.02); A41D 31/065 (2019.02); D03D 25/005 (2013.01); D04B 1/16 (2013.01); D04B 1/24 (2013.01); A41D 2400/10 (2013.01); A41D 2500/10 (2013.01); D10B 2401/04 (2013.01); D10B 2403/0222 (2013.01); D10B 2403/0243 (2013.01); D10B 2403/033 (2013.01); Y10T 442/45 (2015.04); Y10T 442/456 (2015.04)] 20 Claims
OG exemplary drawing
 
1. An insulating, double-knit fabric comprising:
a first knit layer;
a second knit layer coupled with the first knit layer through a plurality of first direction spaced apart rows in a first direction and a plurality of second direction spaced apart rows in a second direction which is perpendicular to the first direction forming a plurality of air pockets in a grid pattern; and
a plurality of intermediate fiber regions positioned in the plurality of air pockets, wherein each of the intermediate fiber regions comprise a plurality of rows of multi-filament fibers extending parallel to at least one of the first and second knit layers,
wherein the first knit layer and the second knit layer comprise a plurality of flame resistant fibers, a plurality of cellulosic fibers, and a plurality of modacrylic fibers blended together.