IP Library › Granted Patent US 12,077,886
Granted Patent B2
US 12,077,886 · App. 16/368,494 · Granted Sep 3, 2024

Insect barrier textile liner system

Inventors: Marian G. McCord (Raleigh, NC); Richard Michael Roe (Raleigh, NC); Charles S. Apperson (Raleigh, NC); Andre J. West (Raleigh, NC); Emiel A. DenHartog (Raleigh, NC)
Assignee: North Carolina State University
D04B1/102D04B1/16D04B1/24D10B2331/02D10B2331/10D10B2501/04
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Quick Facts
Patent No.
US 12,077,886
App. No.
16/368,494
Granted
Sep 3, 2024
Kind
B2
Abstract

Mosquito resistant textiles and garments are provided that demonstrate resistance to mosquito bites without the use of pesticides or chemicals. The textiles and garments provide 90% or more resistance to mosquito bite resistance.

Claims (21)

1. A textile having a plurality of microscopic pores,

wherein the pores have a pore size of about 18 μm or less, and

wherein one or more of the following provides at least 95%, mosquito bite resistance: a thickness of the textile, a pore tortuosity, a pore shape, a number of structures external or internal to the pores that prevent bending of a mouth part sheath of a mosquito, or a presence of fine structures on the external or internal of the pores that hit an antenna or other sensor organ of a mosquito when on a surface of the textile.

2. The textile of claim 1 , wherein the textile has a single fabric layer.

3. The textile of claim 1 , wherein the textile has two or more fabric layers.

4. The textile of claim 1 , wherein the textile is woven, weft knit, warp knit, nonwoven, or a combination thereof.

5. The textile of claim 1 , wherein the textile is made from a fine yarn between 15D to 50D, and wherein the pores have a pore size of about 17 μm or less.

6. The textile of claim 5 , wherein the yarn is elastomeric.

7. The textile of claim 1 , wherein the textile has an open area that is about 14% to 16% .

8. The textile of claim 1 , wherein the textile has bite resistance of about 99.9% or more when measured according to one or both of the in vivo feeding bioassay or the arm-in-cage test.

9. The textile of claim 1 , wherein the pore size is 16 μm or less.

10. The textile of claim 1 , wherein the textile is a nylon/cotton blend.

11. The textile of claim 1 , wherein the textile is a flame-resistant blend of rayon, para-aramid, and nylon.

12. The textile of claim 1 , wherein the textile is made from a fine yarn between 15 D to 50 D, and wherein the pores have a pore size of about 15 μm or less.

13. The textile of claim 1 , wherein the pores have a pore size of 18 μm or less, wherein two or more of the following-provides at least 95% mosquito bite resistance:

a thickness of the textile, a pore tortuosity, a pore shape, a number of structures external or internal to the pores that prevent bending of a mouth part sheath of a mosquito, or a presence of fine structures on the external or internal of the pores that hit an antenna or other sensor organ of a mosquito when on a surface of the textile.

14. The textile of claim 1 , wherein the pores have a pore size of 17 μm or less, wherein three or more of the following-provides at least 95% mosquito bite resistance: a thickness of the textile, a minimum pore size, a pore tortuosity, a pore shape, a number of structures external or internal to the pores that prevent bending of a mouth part sheath of a mosquito, or a presence of fine structures on the external or internal of the pores that hit an antenna or other sensor organ of a mosquito when on a surface of the textile.

15. The textile of claim 1 , wherein the following-provides at least 95% mosquito bite resistance: a thickness of the textile, a pore tortuosity, a pore shape, a number of structures external or internal to the pores that prevent bending of a mouth part sheath of a mosquito, and a presence of fine structures on the external or internal of the pores that hit an antenna or other sensor organ of a mosquito when on a surface of the textile.

16. The textile of claim 1 , wherein the textile has two or more fabric layers, wherein the pores have a pore size of about 15 μm or less, wherein the following provides at least 99% mosquito bite resistance when measured according to one or both of the in vivo feeding bioassay or the arm-in-cage test: a thickness of the textile, a pore tortuosity, a pore shape, a number of structures external or internal to the pores that prevent bending of a mouth part sheath of a mosquito, and a presence of fine structures on the external or internal of the pores that hit an antenna or other sensor organ of a mosquito when on a surface of the textile.

17. The textile of claim 16 , wherein the textile is woven.

18. The textile of claim 16 , wherein the textile is nonwoven.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 15, 2019
From: MCCORD, MARIAN G.; ROE, RICHARD MICHAEL; APPERSON, CHARLES S.; WEST, ANDRE J.; DENHARTOG, EMIEL A.
To: NORTH CAROLINA STATE UNIVERSITY
Reel/Frame 049752/0901 →
Continuity (2)
Provisional Application 62649007 · Mar 28, 2018
Related Publication 20200048801A1 · Feb 13, 2020