Protective garment with thermal liner having varying moisture attraction
View Patent ↗A protective garment including an outer shell, a thermal barrier having a thermal protection performance of at least about twenty, and a moisture barrier positioned between the outer shell and the thermal barrier. The thermal barrier includes an outer layer, an inner layer, and an intermediate layer positioned between the outer and inner layers. The outer layer is positioned adjacent to the moisture barrier, and moisture is more attracted to the intermediate layer than to the outer layer.
1. A protective garment comprising:
an outer shell;
thermal barrier having a thermal protection performance of at least about twenty; and
a moisture barrier positioned between said outer shell and said thermal barrier, wherein said moisture barrier is generally liquid impermeable and generally moisture vapor permeable, said thermal barrier including an outer layer, an inner layer, and an intermediate layer positioned between said outer and inner layers, wherein said outer layer is positioned adjacent to said moisture barrier, and wherein moisture is more attracted to said intermediate layer than to said outer layer.
2. The garment of claim 1 wherein said thermal barrier resists igniting, burning, melting, dripping or separation when exposed to a temperature of 500° F. for at least five minutes.
3. The garment of claim 1 wherein said outer layer is generally hydrophobic and said intermediate layer is generally hydrophilic.
4. The garment of claim 1 wherein said inner layer is generally hydrophilic.
5. The garment of claim 1 wherein said outer layer faces said moisture barrier with substantially no layers therebetween so that said thermal barrier presents a relatively dry surface to said moisture barrier.
6. The garment of claim 1 wherein said inner layer, said outer layer, and said intermediate layer are each discrete layers have a differing attraction to moisture than the other layers of said thermal barrier.
7. The garment of claim 1 wherein moisture is more attracted to said intermediate layer than to said inner layer.
8. The garment of claim 1 wherein moisture is more attracted to said inner layer than to said outer layer.
9. The garment of claim 1 wherein said inner layer is an inner face cloth forming the innermost surface of said garment and is configured to face a wearer when said garment is worn.
10. The garment of claim 9 wherein said inner layer is not directly coupled to said outer layer and said intermediate layer.
11. The garment of claim 1 wherein at least said intermediate layer is directly coupled to said outer layer to form a discrete layer of said garment.
12. The garment of claim 1 wherein said inner layer, said intermediate layer and said outer layer are directly coupled together form a discrete layer of said garment.
13. The garment of claim 1 wherein said outer shell resists igniting, burning, melting, dripping or separation when exposed to a temperature of 500° F. for at least five minutes.
14. The garment of claim 1 wherein the garment conforms with National Fire Protection Association 1971 Standards for Protective Firefighting Garments.
15. The garment of claim 1 wherein said outer layer of said thermal barrier is treated with perfluorohydrocarbon.
16. The garment of claim 1 wherein said thermal barrier is primarily made of aramid fiber batting, or an aramid blend of non-woven materials, or an aramid spun-lace material, or an aramid needlepunch material, or an aramid non-woven material, or an aramid blend needlepunch material, or an aramid blend batting material, or meta-aramid materials, or para-aramid materials, or thermostable organic polymeric material, or synthetic fibers, or combinations thereof.
17. The garment of claim 1 wherein said thermal liner lacks any polymer filler material.
18. The garment of claim 1 wherein said garment is a coat and said thermal barrier is formed in the shape of a coat, or wherein said garment is a pair of trousers and said thermal barrier is formed in the shape of a pair of trousers.
19. The garment of claim 1 wherein said intermediate layer includes a mixture of absorbent material and adsorbent material.
20. The garment of claim 1 wherein said intermediate layer includes at least about 25% absorbent material, and wherein substantially the remainder of said intermediate layer is made of adsorbent material.
21. A protective garment comprising:
an outer shell;
a thermal barrier; and
a moisture barrier positioned between said outer shell and said thermal barrier, said thermal barrier including a generally hydrophobic outer layer, a generally hydrophilic inner layer and a generally hydrophilic intermediate layer positioned between said outer layer and said inner layer, said thermal barrier being configured such that said outer layer of said thermal barrier is positioned between said moisture barrier and said intermediate layer of said thermal barrier.
22. The garment of claim 21 wherein said thermal barrier has a thermal protection performance of at least about twenty.
23. The garment of claim 21 wherein said inner layer is less hydrophilic than said intermediate layer.
24. The garment of claim 21 wherein said thermal barrier resists igniting, burning, melting, dripping or separation when exposed to a temperature of 500° F. for at least five minutes.
25. A protective garment comprising:
a moisture barrier; and
a thermal barrier positioned adjacent to said moisture barrier and having a thermal protection performance of at least about twenty, said thermal barrier including a generally hydrophobic layer and a generally hydrophilic layer, said thermal barrier lacking a superabsorbent polymer, wherein said generally hydrophobic layer faces said moisture barrier.
26. The garment of claim 24 wherein said hydrophobic layer is positioned between said hydrophilic layer and said moisture barrier.
27. The garment of claim 24 further comprising an outer shell, wherein said moisture barrier is positioned between said outer shell and said thermal barrier.
28. The garment of claim 22 wherein said hydrophilic layer includes first and second opposed sides, and wherein said hydrophobic layer is positioned on said first side of said hydrophilic layer, and wherein the thermal barrier includes a supplemental layer positioned on the second side of said hydrophilic layer, and wherein said supplemental layer is less hydrophilic than said hydrophilic layer.
29. The garment of claim 22 wherein said thermal barrier resists igniting, burning, melting, dripping or separation when exposed to a temperature of 500° F. for at least five minutes.
30. A protective garment comprising:
a moisture barrier; and
a thermal barrier positioned adjacent to said moisture barrier, said thermal barrier including a generally hydrophobic layer and a generally hydrophilic layer, wherein said generally hydrophobic layer faces said moisture barrier, wherein said thermal barrier resists igniting, burning, melting, dripping or separation when exposed to a temperature of 500° F. for at least five minutes.