CA2203988C - Non slipping laminate multifilament outer shell for firefighter garment - Google Patents
Non slipping laminate multifilament outer shell for firefighter garment Download PDFInfo
- Publication number
- CA2203988C CA2203988C CA002203988A CA2203988A CA2203988C CA 2203988 C CA2203988 C CA 2203988C CA 002203988 A CA002203988 A CA 002203988A CA 2203988 A CA2203988 A CA 2203988A CA 2203988 C CA2203988 C CA 2203988C
- Authority
- CA
- Canada
- Prior art keywords
- sheet
- yarns
- firefighter garment
- outer shell
- woven
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/08—Heat resistant; Fire retardant
- A41D31/085—Heat resistant; Fire retardant using layered materials
-
- 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
Abstract
The outer shell consists of a plain weave multifilament fabric derived from aramid, polymide, polyamide or polybenzimidazole yarns.
The inner sheet is a woven, non-woven or knitted material. The two sheets are laminated with an adhesive which enables the two sheets to be laminated in such a manner that the two sheets are non slipping with respect to one another while enabling the laminate to be air permeable with a minimum of ten (10) cubic feet per minute (CFM), when tested in accordance with ASTM D737.
The inner sheet is a woven, non-woven or knitted material. The two sheets are laminated with an adhesive which enables the two sheets to be laminated in such a manner that the two sheets are non slipping with respect to one another while enabling the laminate to be air permeable with a minimum of ten (10) cubic feet per minute (CFM), when tested in accordance with ASTM D737.
Description
NON SLIPPING LAMINATE MULTIFILAMENT
OUTER SHELL FOR FIREFIGHTER GARMENT
This invention relates to an improved outer shell for a fire-resistant 5 garment, such as a firefighter protective garmcnt. More p~i ' '.y, the present mvention is concemed with a laminated outer shell made of plain ' ~' woven fabric and amother textile or non textile material, which is non slippmg and non fraying and is more resistant than those made from a twill fabric or has a better air p, ' ' ~ than those which are 10 coated with am amtislip finish. The air p~ ly must be of at leat ten (10) cubic feet per minute (CFM), when tested in accu d with ASTM
D737.
Fil~ 5v' protective garments usually consist of three or more discrete layers of fire-resistant materials. The various layers are nommally:
1) the outer shell which provides protection against puncture, cuts, flame and heat;
OUTER SHELL FOR FIREFIGHTER GARMENT
This invention relates to an improved outer shell for a fire-resistant 5 garment, such as a firefighter protective garmcnt. More p~i ' '.y, the present mvention is concemed with a laminated outer shell made of plain ' ~' woven fabric and amother textile or non textile material, which is non slippmg and non fraying and is more resistant than those made from a twill fabric or has a better air p, ' ' ~ than those which are 10 coated with am amtislip finish. The air p~ ly must be of at leat ten (10) cubic feet per minute (CFM), when tested in accu d with ASTM
D737.
Fil~ 5v' protective garments usually consist of three or more discrete layers of fire-resistant materials. The various layers are nommally:
1) the outer shell which provides protection against puncture, cuts, flame and heat;
2) the moisture barrier substrate and moisture barrier polymer which, although fire-resistant, have as their principal purpose protection against liquid ~ ~ (in certain cases they are pemmeable to p~ n vapor 20 to increase wearer comfort);
3) the themmal barrier msulation whose principal function is to provide protection against heat transfer; and
4) the irmer lining or face cloth (which is nommally quilted to the themnal barrier insulation) which protects the themmal barrier from wear 25 from the inside of the garment, and provides a last layer of heat amd flame An outer shell of good quality does not slip or fray. Slippmg occurs when yarns of one direction, e.g. warp, are displaced laterally with respect to the yams in the other direction, e.g. fill. Fraying occurs when yarns 30 separate from the fabric matrix at the exposed edges of fabric weave.
Slipping and fraying are common to " ''1 fabrics.
Slipping amd fraying m non-fire resistimt fabrics of ' ~' y yams can be controlled by heat setting. However, the iuherently fire-resist~mt properties of the " ~' y yarns ~. . v many fire-35 resistant fabrics render heat setting ~ ve.
One method of u.~,.. v slippage and fraying of fabrics consistingof ' ~1 y yarns is to introduce a certain plUIJUll.iOn of spun yarns into either the warp direction, the fill direction or both warp and fill directions of the fabric weave. However, the d;~ - in ' l, chemical and fire-resistant properties between the ' ~1 ~ and spun yarns may create a fabric that does not have the desired 1~
Another method for o.~ , slippage and fraying consists of a coating or laminated fihm on one or both surfaces of the fabric to immobilize the yarns with respect to one another. However, this method reduces the air p, ' lity of the fabric and may render a garment made of the fabric less ~
It is an object of the present mvention to provide an outer shell for a firefighter garment which is free of slippage and fraying and which is also permeable to air.
It is another object of the present invention to provide an outer shell for a fire-resistant galment which ~ the insulation value to weight ratio of the garment.
Outer shells for fire-resistant garments are disclosed im the following U.S. Patents:
4,188,445 4,255,817 4,937,136
Slipping and fraying are common to " ''1 fabrics.
Slipping amd fraying m non-fire resistimt fabrics of ' ~' y yams can be controlled by heat setting. However, the iuherently fire-resist~mt properties of the " ~' y yarns ~. . v many fire-35 resistant fabrics render heat setting ~ ve.
One method of u.~,.. v slippage and fraying of fabrics consistingof ' ~1 y yarns is to introduce a certain plUIJUll.iOn of spun yarns into either the warp direction, the fill direction or both warp and fill directions of the fabric weave. However, the d;~ - in ' l, chemical and fire-resistant properties between the ' ~1 ~ and spun yarns may create a fabric that does not have the desired 1~
Another method for o.~ , slippage and fraying consists of a coating or laminated fihm on one or both surfaces of the fabric to immobilize the yarns with respect to one another. However, this method reduces the air p, ' lity of the fabric and may render a garment made of the fabric less ~
It is an object of the present mvention to provide an outer shell for a firefighter garment which is free of slippage and fraying and which is also permeable to air.
It is another object of the present invention to provide an outer shell for a fire-resistant galment which ~ the insulation value to weight ratio of the garment.
Outer shells for fire-resistant garments are disclosed im the following U.S. Patents:
4,188,445 4,255,817 4,937,136
5,007,112 5,014,357 5,050,241 5,136,723.
However, none of these references teach a product which combines maximum insulation with reduced slippage and fraying.
The above and other objects of the present invention may be achieved in an outer shell for firefighter garment which comprises a laminate formed of a first sheet of plain weave ' ~' fabric derived from aramid, polyimide, polyamide, pol~ le yarns and a second sheet of woven, non-woven or lmitted material. A&esive means enable the first sheet and the second sheet to be laminated in such a manner that the first sheet and the second sheet are each non slipping relative to one another, and such that fraying of the mdividual sheets is inhibited, while enabling the resulting laminate to be air permeable with a minimum of ten CA 02203988 l997-04-29 (10) cubic feet per minute (CFM) when tested in acco~ e with ASTM
D737.
Preferably, the first sheet consists of a weave of warp and weft yarns which are ' ~' y aramid, polyimide or polyl,. ' '- yarns.
5 The second sheet may be made of woven, non-woven, or knitted material.
The first sheet preferably consists of a plam weave of ' ~1 y aramid yarns.
In acco,~1 ~ e with a preferred ~ ' t, the first sheet and the second sheet are laminated with a spider web bond or a plurality of dot 10 bonds :' ~,I,e~ allowing the laminate to be air p, ' ' The laminate according to the mvention is prepared by any well known 1 ~ process except that the adhesive is deposited such as by spraying so as to produce a spider web bond rather than a ~ film, thereby enabling the laminate to be air p. ''- An example of the 15 adhesive that may be used includes the moisture curing PUR prepolymer hot melt adhesive.
However, none of these references teach a product which combines maximum insulation with reduced slippage and fraying.
The above and other objects of the present invention may be achieved in an outer shell for firefighter garment which comprises a laminate formed of a first sheet of plain weave ' ~' fabric derived from aramid, polyimide, polyamide, pol~ le yarns and a second sheet of woven, non-woven or lmitted material. A&esive means enable the first sheet and the second sheet to be laminated in such a manner that the first sheet and the second sheet are each non slipping relative to one another, and such that fraying of the mdividual sheets is inhibited, while enabling the resulting laminate to be air permeable with a minimum of ten CA 02203988 l997-04-29 (10) cubic feet per minute (CFM) when tested in acco~ e with ASTM
D737.
Preferably, the first sheet consists of a weave of warp and weft yarns which are ' ~' y aramid, polyimide or polyl,. ' '- yarns.
5 The second sheet may be made of woven, non-woven, or knitted material.
The first sheet preferably consists of a plam weave of ' ~1 y aramid yarns.
In acco,~1 ~ e with a preferred ~ ' t, the first sheet and the second sheet are laminated with a spider web bond or a plurality of dot 10 bonds :' ~,I,e~ allowing the laminate to be air p, ' ' The laminate according to the mvention is prepared by any well known 1 ~ process except that the adhesive is deposited such as by spraying so as to produce a spider web bond rather than a ~ film, thereby enabling the laminate to be air p. ''- An example of the 15 adhesive that may be used includes the moisture curing PUR prepolymer hot melt adhesive.
Claims (6)
1. In a firefighter garment including a fire-resistant outer shell, moisture barrier and thermal liner, the improvement wherein said outer shell comprises a laminate formed of a first sheet of plain weave fabric derived from inherently fire-resistant multfilamentary aramid, polyimide, polyamide, polybenzimidazole yarns or mixtures thereof; a second sheet of woven, on-woven or knitted fire-resistant textile material, and said first sheet and said second sheet being laminated with a spider web bond or a plurality of dot bonds therebetween, so that said first sheet and said second sheet are non slipping relative to one another and such that fraying of either sheet is inhibited while enabling said laminate to be air permeable, with a minimum of ten (10) cubic air feet per minute (CFM), when tested in accordance with ASTM D737.
2. A firefighter garment according to claim 1, wherein said first sheet consists of a weave of warp and weft yarns which are multifilamentary aramid, polyimide or polybenzimidazole yarns.
3. A firefighter garment according to claim 1, wherein said first sheet consists of a plain weave of multifilamentary aramid yarns.
4. A firefighter garment according to claim 1, wherein said second sheet is a woven material.
5. A firefighter garment according to claim 1, wherein said second sheet is a non-woven material.
6. A firefighter garment according to claim 1, wherein said second sheet is a knitted material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002203988A CA2203988C (en) | 1997-04-29 | 1997-04-29 | Non slipping laminate multifilament outer shell for firefighter garment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA002203988A CA2203988C (en) | 1997-04-29 | 1997-04-29 | Non slipping laminate multifilament outer shell for firefighter garment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2203988A1 CA2203988A1 (en) | 1998-10-29 |
| CA2203988C true CA2203988C (en) | 2003-07-22 |
Family
ID=27626444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002203988A Expired - Lifetime CA2203988C (en) | 1997-04-29 | 1997-04-29 | Non slipping laminate multifilament outer shell for firefighter garment |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2203988C (en) |
-
1997
- 1997-04-29 CA CA002203988A patent/CA2203988C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CA2203988A1 (en) | 1998-10-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKEX | Expiry |
Effective date: 20170501 |