US20050186875A1 - Firefighter garment outer shell fabric utilizing core-spun dref yarn - Google Patents
Firefighter garment outer shell fabric utilizing core-spun dref yarn Download PDFInfo
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- US20050186875A1 US20050186875A1 US11/050,215 US5021505A US2005186875A1 US 20050186875 A1 US20050186875 A1 US 20050186875A1 US 5021505 A US5021505 A US 5021505A US 2005186875 A1 US2005186875 A1 US 2005186875A1
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- yarn
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- aramid
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Classifications
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/443—Heat-resistant, fireproof or flame-retardant yarns or threads
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
- D02G3/047—Blended or other yarns or threads containing components made from different materials including aramid fibres
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/36—Cored or coated yarns or threads
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D1/00—Woven fabrics designed to make specified articles
- D03D1/0035—Protective fabrics
- D03D1/0041—Cut or abrasion resistant
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
- D03D15/00—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used
- D03D15/50—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads
- D03D15/513—Woven fabrics characterised by the material, structure or properties of the fibres, filaments, yarns, threads or other warp or weft elements used characterised by the properties of the yarns or threads heat-resistant or fireproof
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2331/00—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products
- D10B2331/02—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides
- D10B2331/021—Fibres made from polymers obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polycondensation products polyamides aromatic polyamides, e.g. aramides
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/30—Woven fabric [i.e., woven strand or strip material]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/30—Woven fabric [i.e., woven strand or strip material]
- Y10T442/3065—Including strand which is of specific structural definition
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/30—Woven fabric [i.e., woven strand or strip material]
- Y10T442/3065—Including strand which is of specific structural definition
- Y10T442/3073—Strand material is core-spun [not sheath-core bicomponent strand]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/30—Woven fabric [i.e., woven strand or strip material]
- Y10T442/3976—Including strand which is stated to have specific attributes [e.g., heat or fire resistance, chemical or solvent resistance, high absorption for aqueous composition, water solubility, heat shrinkability, etc.]
Definitions
- Firefighting turnout garments are primarily comprised of three layers of fabrics.
- the outermost fabric layer is a sturdy, water repellent fabric known as the outer shell.
- the middle fabric layer is a thin breathable fabric and is known as the moisture barrier.
- the innermost fabric layer is generally a bulky fabric and is known as the thermal liner.
- NFPA National Fire Protection Association
- the outer shell must meet the minimums for flame-resistance, thermal shrinkage resistance, heat resistance, cleaning shrinkage, tear resistance, water absorption resistance and breaking strength resistance before and after five to ten laundering cycles.
- Most outer shell fabrics are made from high-heat and flame resistant fibers such as Basofil® (melamine), Nomex®(meta-aramid), Kevlar® (para-aramid), P-84TM(copolyimide), PBI® (polybenzimiazole), PBO (poly-p-phenylenebenzobisoxazole), Carbon and Technora® (para-aramid) and KynolTM (phenol) or a blend thereof.
- One commonly used fabric is made from a blend of 40% PBI® (polybenzimidazole) fibers and 60% Kevlar® (para-aramid) fibers.
- PBI® (polybenzimidazole) fiber is used for its heat and flame resistance and para-aramid fibers are used for their strength and wear resistance.
- Most outer shell fabrics are produced from staple fibers made into ring-spun yarns, however, it is also known to use certain filament yarns. Most outer shell fabrics range in weight from six to eight ounces per square yard (6 to 8 OSY) and the yarns are in a cotton count ranging from 14/2 to 22/2.
- the fabrics typically have common weave patterns, such as plain or twill, which include a rip-stop weave in the pattern. The rip-stop weave provides tear resistance and suitable tensile properties.
- the minimum trap tear values for the outer shell fabric must be at least 22 lbs. in the warp and filling direction before and after five laundering cycles.
- outer shell fabrics made from the blends of Meta-Aramid, Para-Aramid, Copolyimide, Poly-P-Phenylenebenzobisoxazole, and Carbon fibers meet the minimum trap tear requirements. It is a common practice to achieve higher trap tear values by employing the principles of “rip stop weave” which incorporates the use of multi-end and/or stronger yarns in the rip stop weave portion of the outer shell fabric.
- rip stop weave which incorporates the use of multi-end and/or stronger yarns in the rip stop weave portion of the outer shell fabric.
- the design of the rip stop weave varies depending on the yarn count, weave construction, fabric weight and fiber blend.
- U.S. Pat. No. 5,299,602 discloses a woven outer shell fabric made for firefighter garments where the warp yarns are multi-filament aramid yarns and the weft yarns are either multi-filament or spun aramid yarns. The use of “bare” multi-filament yarns in the structure of the fabric is disclosed.
- U.S. Pat. Nos. 6,065,153 and 6,192,520 disclose a woven outer shell fabric for a firefighter garments.
- the disclosed fabric has a plain, twill or rip stop weave and the yarns are a mixture of PBI and aramid fibers.
- One popular outer shell fabric is a woven fabric of spun yarns consisting of 40% Basofil and 60% Para-Aramid fiber blend.
- This outer shell fabric produced in plain or twill construction by NOR*FAB Corporation is marketed under the brand name “OMNI 45”.
- This rip stop fabric is made from 16.3/2 cc. spun yarns consisting of 40% Basofil and 60% Para-Aramid fibers by weight.
- the fabric construction employs 43 ends/inch with every tenth end being 2 ends of 16.3/2 cc. yarn and 35 picks/inch with every eighth pick being 2 ends of 16.3/2 cc. yarn to create a rip stop weave structure in the warp and filling direction of the fabric.
- U.S. Pat. No. 6,624,096 B2 discloses a woven fabric of spun yarns and “bare” multi-filament yarns which include an aramid filament.
- the weight ratio of said spun yarn to said multi-filament yarn ranges from 85:15 to 92:8 with the filament count ranging from 200 to 1500 denier.
- the use of “bare” filament yarn in the rip stop weave of the 40% PBI/60% Kevlar fabric by the increase in the trap tear values of the fabric from 40 ⁇ 35 lbs. to 63 ⁇ 63 lbs. and also by the residual Trap Tear values of 26.6 ⁇ 23.6 lbs. after six weeks of the exposure to sunlight based on the ASTM D5733 method.
- the physical properties of the outer shell fabric with “bare” filament Aramid yarn may provide some improvement, a ‘bare’ filament yarn is subject to the risk of being directly exposed to ultra-violet radiation, heat/flames, moisture, flexing and aging either in use or during the laundering process. This would lead to rapid filament yarn failure/fracturing and a substantial decrease in the physical properties of the outer shell fabric.
- FIG. 1 is a plane view of the outer shell fabric made according to the present invention.
- FIG. 2 is a magnified view of a 2-ply DREF Core-Spun yarn used in the design of the outer shell fabric.
- FIG. 1 an illustration of the outer shell fabric 10 made according to the present invention.
- the fabric 10 When woven, the fabric 10 has a pale yellow color with a “raised checkered” pattern created by the 2-ply DREF core spun rip stop yarn 30 , however, the woven fabric 10 is generally dyed to black, yellow, tan and/or navy blue colors.
- the fabric 10 is preferably woven with spun yarns 20 and 2-ply DREF core spun rip stop yarns 30 .
- the fabric 10 preferably weighs approximately 7.8 OSY and is woven in both plain and rip stop weaves, however, the fabric weight can range from 6 to 9 OSY, and be constructed with weaves selected from the group consisting of plain, twill, rip stop, satin, herringbone and oxford.
- the DREF core-spun yarn maybe inserted among the spun yarns in, both the warp and weft, at an insertion ratio of 1:4 to 1:25, and preferably at 1:9.
- the fabric is treated with a suitable water/moisture resistant finish, which is a well known treatment in the industry.
- the spun yarn 20 is preferably a 16.3/2 cotton count and is made from a blend of 40% Melamine formaldehyde (Basofil)/60% Para-Aramid (Kevlar) staple fibers.
- the spun yarns may range in size from 36/2 to 12/2 cc., and include a first staple polymer selected from a group consisting of Meta-Aramid, Copolymer, PBI, Poly-P-Phenylenebenzobisoxazole, Carbon and Melamine formaldehyde, and a second staple of an aramid polymer.
- Meta and Para-Aramid staple fibers are commercially available under the trade name of TWARON®, CONEX®, and TECHNORA® from Teijin Co. of Asaka, Japan; or NOMEX® or KEVLAR® from DuPont of Wilmington, Del.; or P-84 from Lenzing AG of Lenzing, Austria; or KERMEL® from Rhodia Inc. of Cranberry, N.J.
- FIG. 2 illustrates a magnified view of the 2-ply rip stop yarn 30 used in the structure of the outer shell fabric.
- the 2-ply yarn 30 consists of 2 ends of the DREF core-spun singles yarn 40 twisted with approximately 3.2 twist multiplier(TM).
- the resultant yarn count of the 2-ply yarn 30 is 4.7/2 cc.
- the singles yarns 40 are core-spun DREF III yarns with a resultant yarn count of 9.5/1 cc.
- the DREF core spun yarn 40 contains a 100% filament PBO core and a sheath fiber blend 50 comprised of 40% melamine formaldehyde (Basofil)/60% para-aramid (Kevlar) sheath fiber blend.
- the core spun yarn 40 can be comprised of one or more filament or stretch broken spun cores selected from the polymer group consisting of PBO, Aramid, Liquid Crystal Polymer (LCP), Carbon and P-84, with or without a fine metallic wire co-core, and a staple sheath blend 50 consisting of one or more fibers selected from the group consisting of Meta-Aramid, Para-Aramid, Copolyimide, PBI, PBO, P-84, Carbon, Kynol, PFR Rayon and/or Modacrylic fibers.
- a staple sheath blend 50 consisting of one or more fibers selected from the group consisting of Meta-Aramid, Para-Aramid, Copolyimide, PBI, PBO, P-84, Carbon, Kynol, PFR Rayon and/or Modacrylic fibers.
- the core yarn 60 may range from 6 to 600 Tex.
- the ratio of filament core yarn 60 to the sheath fiber blend 50 is approximately 45:55, however, the ratio of core yarn 60 to the sheath fiber blend 50 may be in ranges from 10:90 to 90:10.
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Woven Fabrics (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
Abstract
The present invention is directed to a fabric that is particularly well suited for use as the outer shell fabric of the firefighter's garment. The preferred fabric is 40% Melamine formaldehyde (Basofil) and 60% Para-Aramid (Kevlar) woven of spun yarns and core-spun DREF yarns. The core spun yarn includes one or more filament cores selected from a polymer group consisting of PBO, Aramid, Liquid Crystal Polymer (LCP), Carbon and P-84, with or without a fine metallic wire co-core, and a staple sheath blend consisting of one or more fibers selected from a group consisting of Meta-Aramid, Para-Aramid, Copolymide, PBI, PBO, P-84, Carbon, Kynol, PFR Rayon and/or Modacrylic fibers.
Description
- This application claims the benefit of U.S. provisional application No. 60/541,314, filing date Feb. 3, 2004 which is incorporated by reference as if fully set forth.
- Firefighting turnout garments are primarily comprised of three layers of fabrics. The outermost fabric layer is a sturdy, water repellent fabric known as the outer shell. The middle fabric layer is a thin breathable fabric and is known as the moisture barrier. The innermost fabric layer is generally a bulky fabric and is known as the thermal liner. Each of the fabric components, as well as firefighting turnout garments made using these three components, must meet minimum performance criteria which are set forth in the National Fire Protection Association (NFPA) 1971 Standard on Protective Ensemble for Structural Firefighting, 2000 Edition. Under the NFPA 1971-2000 standard, the outer shell must meet the minimums for flame-resistance, thermal shrinkage resistance, heat resistance, cleaning shrinkage, tear resistance, water absorption resistance and breaking strength resistance before and after five to ten laundering cycles.
- Most outer shell fabrics are made from high-heat and flame resistant fibers such as Basofil® (melamine), Nomex®(meta-aramid), Kevlar® (para-aramid), P-84™(copolyimide), PBI® (polybenzimiazole), PBO (poly-p-phenylenebenzobisoxazole), Carbon and Technora® (para-aramid) and Kynol™ (phenol) or a blend thereof. One commonly used fabric is made from a blend of 40% PBI® (polybenzimidazole) fibers and 60% Kevlar® (para-aramid) fibers. PBI® (polybenzimidazole) fiber is used for its heat and flame resistance and para-aramid fibers are used for their strength and wear resistance. Most outer shell fabrics are produced from staple fibers made into ring-spun yarns, however, it is also known to use certain filament yarns. Most outer shell fabrics range in weight from six to eight ounces per square yard (6 to 8 OSY) and the yarns are in a cotton count ranging from 14/2 to 22/2. The fabrics typically have common weave patterns, such as plain or twill, which include a rip-stop weave in the pattern. The rip-stop weave provides tear resistance and suitable tensile properties.
- Under the NFPA 1971-2000 Standard, the minimum trap tear values for the outer shell fabric must be at least 22 lbs. in the warp and filling direction before and after five laundering cycles. Generally, outer shell fabrics made from the blends of Meta-Aramid, Para-Aramid, Copolyimide, Poly-P-Phenylenebenzobisoxazole, and Carbon fibers meet the minimum trap tear requirements. It is a common practice to achieve higher trap tear values by employing the principles of “rip stop weave” which incorporates the use of multi-end and/or stronger yarns in the rip stop weave portion of the outer shell fabric. Generally, the design of the rip stop weave varies depending on the yarn count, weave construction, fabric weight and fiber blend. However, it is known to incorporate the rip stop weave in the warp direction of the outer shell fabric every six to twelve ends and in the filling direction every six to twelve picks. Thus, the distribution of the rip stop weave yarn in the body of the outer shell fabric provides adequate trap tear values.
- U.S. Pat. No. 5,299,602 discloses a woven outer shell fabric made for firefighter garments where the warp yarns are multi-filament aramid yarns and the weft yarns are either multi-filament or spun aramid yarns. The use of “bare” multi-filament yarns in the structure of the fabric is disclosed.
- U.S. Pat. Nos. 6,065,153 and 6,192,520 disclose a woven outer shell fabric for a firefighter garments. The disclosed fabric has a plain, twill or rip stop weave and the yarns are a mixture of PBI and aramid fibers.
- One popular outer shell fabric is a woven fabric of spun yarns consisting of 40% Basofil and 60% Para-Aramid fiber blend. This outer shell fabric produced in plain or twill construction by NOR*FAB Corporation is marketed under the brand name “OMNI 45”. This rip stop fabric is made from 16.3/2 cc. spun yarns consisting of 40% Basofil and 60% Para-Aramid fibers by weight. The fabric construction employs 43 ends/inch with every tenth end being 2 ends of 16.3/2 cc. yarn and 35 picks/inch with every eighth pick being 2 ends of 16.3/2 cc. yarn to create a rip stop weave structure in the warp and filling direction of the fabric.
- U.S. Pat. No. 6,624,096 B2 discloses a woven fabric of spun yarns and “bare” multi-filament yarns which include an aramid filament. The weight ratio of said spun yarn to said multi-filament yarn ranges from 85:15 to 92:8 with the filament count ranging from 200 to 1500 denier. The use of “bare” filament yarn in the rip stop weave of the 40% PBI/60% Kevlar fabric by the increase in the trap tear values of the fabric from 40×35 lbs. to 63×63 lbs. and also by the residual Trap Tear values of 26.6×23.6 lbs. after six weeks of the exposure to sunlight based on the ASTM D5733 method.
- Although, the physical properties of the outer shell fabric with “bare” filament Aramid yarn may provide some improvement, a ‘bare’ filament yarn is subject to the risk of being directly exposed to ultra-violet radiation, heat/flames, moisture, flexing and aging either in use or during the laundering process. This would lead to rapid filament yarn failure/fracturing and a substantial decrease in the physical properties of the outer shell fabric.
- For the purpose of illustrating the invention, there is shown in the drawings a preferred form of the invention; however, the invention is not limited to the precise arrangements and instrumentalities shown.
-
FIG. 1 is a plane view of the outer shell fabric made according to the present invention. -
FIG. 2 is a magnified view of a 2-ply DREF Core-Spun yarn used in the design of the outer shell fabric. - Referring to the drawings wherein like numerals indicate like elements there is shown in
FIG. 1 an illustration of theouter shell fabric 10 made according to the present invention. When woven, thefabric 10 has a pale yellow color with a “raised checkered” pattern created by the 2-ply DREF core spunrip stop yarn 30, however, thewoven fabric 10 is generally dyed to black, yellow, tan and/or navy blue colors. Thefabric 10 is preferably woven with spun yarns 20 and 2-ply DREF core spunrip stop yarns 30. Thefabric 10 preferably weighs approximately 7.8 OSY and is woven in both plain and rip stop weaves, however, the fabric weight can range from 6 to 9 OSY, and be constructed with weaves selected from the group consisting of plain, twill, rip stop, satin, herringbone and oxford. - The DREF core-spun yarn maybe inserted among the spun yarns in, both the warp and weft, at an insertion ratio of 1:4 to 1:25, and preferably at 1:9. Generally, the fabric is treated with a suitable water/moisture resistant finish, which is a well known treatment in the industry.
- The spun yarn 20 is preferably a 16.3/2 cotton count and is made from a blend of 40% Melamine formaldehyde (Basofil)/60% Para-Aramid (Kevlar) staple fibers. The spun yarns may range in size from 36/2 to 12/2 cc., and include a first staple polymer selected from a group consisting of Meta-Aramid, Copolymer, PBI, Poly-P-Phenylenebenzobisoxazole, Carbon and Melamine formaldehyde, and a second staple of an aramid polymer.
- Meta and Para-Aramid staple fibers are commercially available under the trade name of TWARON®, CONEX®, and TECHNORA® from Teijin Co. of Asaka, Japan; or NOMEX® or KEVLAR® from DuPont of Wilmington, Del.; or P-84 from Lenzing AG of Lenzing, Austria; or KERMEL® from Rhodia Inc. of Cranberry, N.J.
-
FIG. 2 illustrates a magnified view of the 2-plyrip stop yarn 30 used in the structure of the outer shell fabric. The 2-ply yarn 30 consists of 2 ends of the DREF core-spun singles yarn 40 twisted with approximately 3.2 twist multiplier(™). The resultant yarn count of the 2-ply yarn 30 is 4.7/2 cc. - The
singles yarns 40 are core-spun DREF III yarns with a resultant yarn count of 9.5/1 cc. The DREFcore spun yarn 40 contains a 100% filament PBO core and asheath fiber blend 50 comprised of 40% melamine formaldehyde (Basofil)/60% para-aramid (Kevlar) sheath fiber blend. Thecore spun yarn 40 can be comprised of one or more filament or stretch broken spun cores selected from the polymer group consisting of PBO, Aramid, Liquid Crystal Polymer (LCP), Carbon and P-84, with or without a fine metallic wire co-core, and astaple sheath blend 50 consisting of one or more fibers selected from the group consisting of Meta-Aramid, Para-Aramid, Copolyimide, PBI, PBO, P-84, Carbon, Kynol, PFR Rayon and/or Modacrylic fibers. - Although, the preferred
filament core yarn 60 is 27.8 Tex (278 d Tex), thecore yarn 60 may range from 6 to 600 Tex. In thecore spun yarn 40, the ratio offilament core yarn 60 to thesheath fiber blend 50, is approximately 45:55, however, the ratio ofcore yarn 60 to thesheath fiber blend 50 may be in ranges from 10:90 to 90:10.
Claims (23)
1. A textile fabric of interwoven yarns comprising:
a plurality of yarns that are spun yarns including staple fibers selected from the group consisting of PBI, PBO, melamine formaldehyde, P-84, Carbon and Kynol; and a plurality of core-spun DREF yarns comprised of a polymer sheath and at least one core filament.
2. The fabric of claim 1 wherein the core-spun DREF yarn core filament is selected from the polymer group consisting of PBO, Aramid, Liquid Crystal Polymer (LCP), Carbon and P-84.
3. The fabric of claim 1 wherein the core-spun DREF yarn has a sheath of staple fibers selected from the group consisting of Meta-Aramid, Para-Aramid, Copolymide, PBI, PBO, P-84, Carbon, Kynol, PFR Rayon and Modacrylic fibers.
4. The fabric of claim 1 wherein fabric has a weight ranging from 6 to 9 OSY.
5. The fabric of claim 1 wherein its weave is selected from the group consisting plain, twill, rip stop, satin, herringbone and oxford.
6. The fabric of claim 1 wherein the core-spun DREF yarn has a Tex ranging from 11 to 1100.
7. The fabric of claim 1 wherein the core filament of the core-spun DREF yarn has a Tex ranging from 6 to 600.
8. The fabric of claim 1 wherein the DREF yarn has weight ratio of core to sheath ranging from 90:10 to 10:90.
9. A core spun Dref yarn comprised of:
at least one core filament yarn selected from the group consisting of PBO, Aramid, Liquid Crystal Polymer (LCP), Carbon and P-84; and
a sheath of staple yarns selected from the group consisting of Meta-Aramid, Para-Aramid, Copolyimide, PBI, PBO, P-84, Carbon, Kynol, PFR Rayon and/or Modacrylic fibers.
10. The yarn of claim 9 wherein the core includes at least one metallic filament.
11. The yarn of claim 9 wherein the sheath is comprised of at least two fibers selected from the group.
12. The yarn of claim 11 wherein the core includes at least one metallic filament.
13. A firefighter's turnout garment having a layer of woven fabric comprising:
spun yarns having fibers selected from the group consisting of PBI, PBO, melamine formaldehyde, P-84, Carbon and Kynol; and
core-spun DREF yarns having at least one core filament and a sheath of fibers selected from the group consisting of Meta-Aramid, Para-Aramid, Copolymide, PBI, PBO, P-84, Carbon, Kynol, PFR Rayon and Modacrylic fibers.
14. The firefighter's turnout garment of claim 13 wherein the layer of woven fabric is an outermost layer.
15. The firefighter's turnout garment of claim 13 wherein the core yarn is metallic.
16. The firefighter's turnout garment of claim 15 wherein the layer of woven fabric is an outermost layer.
17. The firefighter's turnout garment of claim 13 wherein the layer of woven fabric is an outermost layer.
18. The firefighter's turnout garment of claim 13 wherein the spun yarn has a cotton count ranging from 36/2 to 12/2.
19. The firefighter's turnout garment of claim 13 wherein the spun yarn is a staple fiber blend of 40% Melamine formaldehyde (Basofil)/60% Para-Aramid (Kevlar).
20. The firefighter's turnout garment of claim 13 wherein the weave includes a rip stop yarn that is a 2-ply yarn consisting of two ends of DREF core spun singles yarn twisted with a twist multiplier of about 3.2.
21. The firefighter's turnout garment of claim 13 wherein the spun yarn has a cotton count of 16.3/2.
22. The firefighter's turnout garment of claim 21 wherein the weave includes a rip stop yarn that is a 2-ply yarn consisting of two ends of DREF core spun singles yarn twisted with a twist multiplier of about 3.2.
23. The firefighter's turnout garment of claim 22 wherein the layer of woven fabric is an outermost layer.
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US11/050,215 US20050186875A1 (en) | 2004-02-03 | 2005-02-03 | Firefighter garment outer shell fabric utilizing core-spun dref yarn |
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US54131404P | 2004-02-03 | 2004-02-03 | |
US11/050,215 US20050186875A1 (en) | 2004-02-03 | 2005-02-03 | Firefighter garment outer shell fabric utilizing core-spun dref yarn |
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Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
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