MULTIFUNCTIONAL PROTECTIVE FABRIC
The present invention is directed toward a multifunctional protective fabric and yarn. The fabric has a double knit interlock material of the yarns. The yarns include: a first filament being a liquid crystal polymer filament; and a second filament being selected from the group consisting of: modacrylic, polyacrylonitrile, nylon, glass, aramid, olefins, and combinations thereof. The weight ratio of the first filament to the second filament ranges from 20:80 to 99:1.
1 . A multifunctional protective fabric comprising:
a woven or knitted material of yarns including:
a first filament being a liquid crystal polymer filament; and
a second filament being selected from the group consisting of: modacrylic, polyacrylonitrile, rayon, nylon, aramid, olefins, carbon, glass, and polyethylene including ultra high molecular weight polyethylene (UHMWPE);
wherein, the weight ratio of said first filament to said second filament ranging from 20:80 to 99:1.
2 . The multifunctional protective fabric of claim 1 wherein said second filaments being a copolymer selected from the group consisting of: modacrylic and polyacrylonitrile.
3 . The multifunctional protective fabric of claim 1 wherein said fabric being a double knit interlock material of said yarns.
4 . The multifunctional protective fabric of claim 1 wherein the weight ratio of said first filaments to said second filaments ranging from 90:10 to 95:5.
5 . The multifunctional protective fabric of claim 1 having a basis weight between 5 ounces per square yard and 30 ounces per square yard.
6 . The multifunctional protective fabric of claim 1 having a basis weight of between approximately 18 ounces per square yard and 23 ounces per square yard.
7 . The multifunctional protective fabric of claim 5 including:
a tear strength of greater than 20 pounds as tested in accordance with ASTM 01424;
a break strength of greater than 200 pound-force as tested in accordance with ASTM 05034;
an abrasion resistance of greater than 300 cycles to failure as tested in accordance with ASTM D3884;
a burst strength of greater than 500 pounds-force as tested in accordance with ASTM D3787;
a cut resistance of greater than 500 grams as tested in accordance with ASTM F1790; and
a resistance to puncture of greater than 5 pounds-force as tested in accordance with ASTM D2582.
8 . The multifunctional protective fabric of claim 7 further including a flame resistance, said flame resistance including:
a char length of less than 1.0 inches as tested in accordance with ASTM D6413;
an after flame of less than 5.0 seconds as tested in accordance with ASTM D6413; and
an after glow of less than 5.0 seconds as tested in accordance with ASTM D6413.
9 . The multifunctional protective fabric of claim 1 wherein said liquid crystal polymer filaments having a denier of between 0.5 denier per filament and 30 denier per filament.
10 . The multifunctional protective fabric of claim 1 wherein said liquid crystal polymer filaments having a denier of 5 denier per filament.
11 . The multifunctional protective fabric of claim 1 providing abrasion resistance, penetration resistance, laceration resistance, impact resistance, thermal resistance, and flame resistance.
12 . The multifunctional protective fabric of claim 1 being a composite soft protective fabric.
13 . The multifunctional protective fabric of claim 1 wherein said yarns being selected from the group consisting of:
spun yarns, twisted yarns, plaited yarns, chopped yarns, filament yarns, core wrapped yarns, jet blown yarns, and combinations thereof.
14 . A multifunctional protective yarn comprising:
a first filament being a liquid crystal polymer filament; and
a second filament being a copolymer selected from the group consisting of: modacrylic, polyacrylonitrile, rayon, nylon, aramid, olefins, carbon, glass, and polyethylene including ultra high molecular weight polyethylene (UHMWPE);
wherein, the weight ratio of said first filaments to said second filaments ranging from 20:80 to 99:1.
15 . The multifunctional protective yarn of claim 14 wherein said second filament being a copolymer selected from the group consisting of: modacrylic and polyacrylonitrile.
16 . The multifunctional protective yarn of claim 14 wherein the weight ratio of said first filaments to said second filaments ranging from 90:10 to 95:5.
17 . The multifunctional protective yarn of claim 14 wherein said liquid crystal polymer filaments having a denier of between 0.5 denier per filament and 30 denier per filament.
18 . The multifunctional protective yarn of claim 14 wherein said liquid crystal polymer filaments having a denier of 5 denier per filament.
19 . The multifunctional protective yarn of claim 14 having a construction being selected from the group consisting of: a spun yarn, a twisted yarn, a plaited yarn, a chopped yarn, a filament yarn, a core wrapped yarn, and a jet blown yarn.
20 . The multifunctional protective yarn of claim 19 having a core wrapped yarn construction.