IP Library Granted Patent US 12703933
Granted Patent B2
US 12703933 · App. 18/248,323 · Granted Aug 11, 2026

Fabric with moisture management function

Inventors: Yogendra V. Dandapure (Vancouver, CA); Sealgi Song (Vancouver, CA)
Assignee: LULULEMON ATHLETICA CANDA INC.
D03D15/527B32B5/024B32B5/026B32B5/073B32B5/08B32B5/26B32B5/263B32B7/02D03D1/00D03D11/00D03D13/004D03D15/217D03D15/225D03D15/283D03D15/292D03D15/47D03D15/54D04B1/14D04B1/16D04B1/24D04B21/16D04B21/207B32B2262/0261B32B2262/0292B32B2262/04B32B2262/062B32B2262/148B32B2262/152B32B2307/728B32B2437/00D10B2201/02D10B2201/20D10B2331/02D10B2331/10D10B2401/022D10B2403/0114D10B2501/00
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Quick Facts
Patent No.
US 12703933
App. No.
18/248,323
Granted
Aug 11, 2026
Kind
B2
Abstract

It is described a knitted/woven fabric with moisture management function comprising a first fabric layer having a first yarn and a second yarn knitted together to form a first layer being semi-hydrophilic or hydrophobic (comprising of lower moisture regain fibers), a second fabric layer comprising a third yarn and a fourth yarn knitted together to form the second fabric layer, the second fabric layer being fully hydrophilic (comprising of higher moisture regain fibers), wherein the first fabric layer has a moisture regain lower than the moisture regain of the second fabric layer providing a hydrophilic gradient between the first fabric layer and the second fabric layer of the knitted fabric pushing moisture through the first fabric layer in contact with the wearer's skin and out through the second fabric layer.

Claims (39)

1 . A fabric with moisture management function comprising:

a first fabric layer comprising a first yarn forming the first fabric layer, the first fabric layer being semi-hydrophilic with a first moisture regain in a range of 0.2%-6%; and

a second fabric layer comprising a second yarn forming the second fabric layer, the second fabric layer being hydrophilic with a second moisture regain in a range of 4%-16%,

wherein the first moisture regain is lower than the second moisture regain and a difference between the second moisture regain and the first moisture regain is greater than 3% so as to act to pull moisture through the first fabric layer and push it out through the second fabric layer.

2 . The fabric of claim 1 , wherein the fabric is a weft or warp knitted fabric or a woven fabric.

3 . The fabric of claim 1 , wherein a maximum difference between the second moisture regain and the first moisture regain is 15%.

4 . The fabric of claim 1 , wherein at least one of the first yarn and the second yarn is a synthetic polymer yarn.

5 . The fabric of claim 1 , wherein the first yarn comprises fibers selected from a group of a nylon, a polyester, a polypropylene, an acrylic, cotton, wool, silk, regenerated cellulosic fibers or any blend or combination thereof.

6 . The fabric of claim 1 , wherein the first fabric layer further comprises a third yarn joined together with the first yarn and the second fabric layer further comprises a fourth yarn joined together with the second yarn.

7 . The fabric of claim 6 , wherein the third yarn is an elastane yarn.

8 . The fabric of claim 6 , wherein the first fabric layer comprises a synthetic polymer yarn plaited with an elastane yarn.

9 . The fabric of claim 1 , wherein the second yarn comprises a natural fiber, a regenerated cellulosic fiber or a blend of natural or regenerated cellulosic fibers with synthetic fibers.

10 . The fabric of claim 9 , wherein the synthetic fibers comprise nylon fibers, polyester fibers, polypropylene fibers, acrylic fibers, or a combination thereof.

11 . The fabric of claim 9 , wherein the second yarn comprises fibers selected from the group consisting of a cotton, silk, wool, modal, micro-modal, rayon, lyocell, viscose, cupro, artificial silk, nylon, a polyester, a polypropylene, an acrylic and any combination thereof.

12 . The fabric of claim 6 , wherein the fourth yarn is a synthetic polymer yarn.

13 . The fabric of claim 12 , wherein the fourth yarn is an elastane yarn.

14 . The fabric of claim 6 , wherein the second fabric layer comprises a natural fiber yarn plaited with an elastane yarn or comprises a yarn including a blend of natural fibers and synthetic fibers.

15 . The fabric of claim 14 , wherein the synthetic fibers comprise nylon fibers, polyester fibers, polypropylene fibers, acrylic fibers, or a combination thereof.

16 . The fabric of claim 1 , wherein the second yarn is a synthetic polymer yarn.

17 . The fabric of claim 16 , wherein the second yarn comprises fibers selected from a group consisting of a nylon, a polyester, a polypropylene, an acrylic, a blend with cotton, silk, wool, modal, micro-modal, rayon, lyocell, viscose, cupro, and artificial silk, and a combination thereof.

18 . The fabric of claim 1 , wherein the second fabric layer is pitched to increase its surface area.

19 . A fabric with moisture management function comprising:

a first fabric layer comprising a first yarn forming the first fabric layer, the first fabric layer being semi-hydrophilic with a first moisture regain in a range of 0.2%-6%; and

a second fabric layer comprising a second yarn forming the second fabric layer, the second fabric layer being hydrophilic with a second moisture regain in a range of 4%-16%,

wherein the first moisture regain is lower than the second moisture regain and a difference between the second moisture regain and the first moisture regain is greater than 3% so as to act to pull moisture through the first fabric layer and push it out through the second fabric layer,

wherein the fabric is knitted and further comprises a connecting yarn binding together the first fabric layer and the second fabric layer.

20 . The fabric of claim 19 , wherein the connecting yarn is at least a single strand yarn.

21 . The fabric of claim 19 , wherein the connecting yarn is a synthetic polymer yarn.

22 . The fabric of claim 19 , wherein the connecting yarn is an elastane yarn.

23 . The fabric of claim 19 , wherein the connecting yarn is a natural fiber yarn.

24 . The fabric of claim 19 , wherein the connecting yarn forms a zig-zag structure connecting the first fabric layer and the second fabric layer.

25 . The fabric of claim 1 , wherein the fabric is knitted from a single jersey plaited construction, a double jersey plaited construction, a tricot knit construction, or a warp knit construction.

26 . The fabric of claim 6 , wherein at least one of the first yarn, the second yarn, the third yarn and the fourth yarn is a compact-spun yarn.

27 . The fabric of claim 1 , wherein the weaves of first fabric layer and the second fabric layer include a number of yarn cross overs.

28 . The fabric of claim 27 , wherein the number of yarn cross overs include 3 up and 3 down, 3 up and one down, 3 up and 2 down, or 4 up and 1 down.

29 . An article of apparel comprising a fabric with moisture management function, the fabric comprising:

a first fabric layer comprising a first yarn forming the first fabric layer, the first fabric layer being semi-hydrophilic with a first moisture regain in a range of 0.2%-6%; and

a second fabric layer comprising a second yarn forming the second fabric layer, the second fabric layer being hydrophilic with a second moisture regain in a range of 4%-16%,

wherein the first moisture regain is lower than the second moisture regain and a difference between the second moisture regain and the first moisture regain is greater than 3% so as to act to pull moisture through the first fabric layer and push it out through the second fabric layer.