CA1319300C - Yarn and protective garment - Google Patents
Yarn and protective garmentInfo
- Publication number
- CA1319300C CA1319300C CA 515331 CA515331A CA1319300C CA 1319300 C CA1319300 C CA 1319300C CA 515331 CA515331 CA 515331 CA 515331 A CA515331 A CA 515331A CA 1319300 C CA1319300 C CA 1319300C
- Authority
- CA
- Canada
- Prior art keywords
- yarn
- core
- covering
- strand
- fiber
- 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
-
- 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
- D02G3/442—Cut or abrasion resistant yarns or threads
-
- 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
- D10B2321/00—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D10B2321/02—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins
- D10B2321/021—Fibres made from polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds polyolefins polyethylene
-
- 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
Abstract
IMPROVED YARN AND PROTECTIVE GARMENT
ABSTRACT OF THE DISCLOSURE
An improved Darn having greater stretch resistance, wet strength, abrasion resistance, and substantial flexibility as well as resistance to ultraviolet light. The yarn may be used to knit an improved protective garment such as glove, apron, sleeve or the like. The garment is knitted from at least one end of yarn. The yarn has a core and covering, the core having at least two strands and the covering having at least one strand. The core includes an extended chain polyethylene fiber and may include a wire strand. The covering may be extended chain polyethylene fiber, nylon fiber, or both.
ABSTRACT OF THE DISCLOSURE
An improved Darn having greater stretch resistance, wet strength, abrasion resistance, and substantial flexibility as well as resistance to ultraviolet light. The yarn may be used to knit an improved protective garment such as glove, apron, sleeve or the like. The garment is knitted from at least one end of yarn. The yarn has a core and covering, the core having at least two strands and the covering having at least one strand. The core includes an extended chain polyethylene fiber and may include a wire strand. The covering may be extended chain polyethylene fiber, nylon fiber, or both.
Description
247 5.002 IMPRt~V~D YARN AND PROTECrIVE GARM-¢NT
BACKG~OU~ID OF THE IN VENTION
l'he present invention relates generally to yarns and protective garments using such yarns and, more particularly, to an improved yarn which may be knitted to form an improved, more comfortable, more flexible, protective garment.
Prior to the present invention, technological developments of yarns for protective garments have cen~ered around the use of Kevlar, which is the DuPont trademark for an aramid fiber, as the fiber used in yarns, ~vhich yarns are ultimately used in protective garments. By way of example, and not by way of limitation, aramid fibers have been used in yarns with the yarns thereafter knitted to rnake protective garments ineluding bullet-resistant vests and protective gloves as exemplified by B~rnes, 'United States Patent No. 3,883,898.
In addition to the use of an ~ramid yarn as aforesaid, aramid fibers have been utilized in combination with other materials to form a yarn which yarn may be thereafter knitted to form a protective garment such as a protective glove with increased slash or cut resistance. Examples of this concept may be found in Byrnes Wnited States Patent No. 4,004,295, and B~rnes et al. United States Patent No. 4,384,449, each of which describes the use OI the Kevlar aramid fiber in combination with wire; the first of these two patents discloses the use of an aramid fiber yarn together with a metal wire~and the second of these two patents describes a composite yarn itself; the yarn including a core of aramid fiber plus flexible wire and a covering of ar~nid fiber.
There are, of course, certain recognized problems with the use of the aramid fiber as the constituent in a yarn ~o thereafter be utilized in protective garments. For example, aramid f ibers weaken in water. Second, the aramid fiber has only a limited resistance to true abrasion. 'rhird, ultraviolet light adversely affects the appearance of the aramid fiber and can cause discolorations ~ 3~3~0 475.0U2 in the aramid fiber, discolorations in the yarn and discoloration in the finished product.
~ ecently, a new high strength fiber has been announced by Allied Corporation. The fiber is an extended chain polyethylene, which is understood to be a member of the polyolefin family. The fiber has been sold under the trademark of Spectra with two different fibers being marketed, Spectra 1000 and Spectra 900. We understand that the Spectra 1000 is a 1200 denier fiber and that Spectra 900 is 650 denier fiber.
SUMMAR~ OF T~E INVENTION
The present invention provides a new and improved yarn and garment made from the yarn. The yarn includes a core and a covering, the core includes at least one wire strand and one polyethylene strand. The covering may be a polyethylene strand or a nylon strand.
The yarn and garment according to the present invention has numerous suhstantial advantages over the prior art, commercially available yarns such as those made of the Kevlar aramid f iber. For example, the polyethylene fiber has approximately 50 to 75% greater tensile strength than a comparable aramid fiber. The polyethylene fiber is resistant to ultraviolet light and thus does not result in undesirable color change when the fiber, or yarn made from the fiber, or finished product, are exposed to ultraviolet light. The fiber is inert, non-absorptive, non-allergenic and stable. The density of the Spectra 900 polyethylene fiber is, by way of example7 only two-thirds the density of Kevlar 4~
aramid fiber. Nonetheless, the pol~ethylene fiber has a substantially increased tensile strength, resistance to elonga~ion, a substantially increased abrasion resistance, and maintains greater flexibility despite the increases in strength. The fiber has a specific gravity of 1.0 or less7 typically 0.97. Thus the garment is stronger, more flexible and yet more comfortable than Kevlar-based garments.
~3~.~300 2475.002 BRIEF DESCRIPTION OF THE DRAWINGS
The various benefits and advantages of the present invention will be more easily understood upon reading the following detailed description of the invention taken in conjunction with the drawingsO
In the drawings, wherein like reference numerals identify corresponding components:
Figure 1 is an illustration of yarn used in accordance with the principles of the present invention;
Figure 2 is an illustration of a protective garment made in accordance with the principles of the present invention; and Pigure 3 is an illustration of another protective garment.
DETAILED DESCRIPTION OF THE INVENTION
With reference to the drawings, the improved yarn 10 of the present invention is illustrated in Figure 1 as being formed of a core 12 and a covering 14. The core 12 ineludes two substantially parallel strands; one strand 16 is formed of wire such as filament grade 304 stainless steel wire. The second strand 18 in the core is a strand of polyethylene fiber. The two strands are placed parallel to each other.
At this point, it is believed helpful to digress momentarily and provide details of the vnre and of the fiber which are included in the core. It should be appreciated that the wire diameter and wire material should be selected based upon the ultimate utilization of the yarn in a protective garment as well as any restrictions based on the capability of the knitting equipment which will be utili~ed to knit the yarn into the garment. If it is desired to make a cut resistant ~ ~ l o~ ) 0 475~002 glove, apron, sleeve or the like for industrial use, there are numerous filamentgrade wires which may be utilized. The objective, of course, is to minimize the wire diameter, to ma2cimize flexibility, while still maintaining the desired degree of cut resistance and, furthermore, the wire cannot be so thin as to readily break when either knitted into the garment or when the garment is utilized. Of s~ourse, iE the garment is a protective glove, the flexing of the glove on the hand of the wearer could cause the wire to break if the wire was too thin in diameter or if the wire had insufficient strength.
An additional factor in determining wire diameter is, of course, any limitations imposed by the knitting equipment. There are two conventional glove knitting machines presently on the market, one manufactured by Matuya and the other manufactured by Shima Seiki. With both of these knitting machines, there are limits as to the diameter of the yarn. Since the yarn includes both a core and a covering, the machine thus presents a maximum limit as to the diarneter of the wire which may be used. While other knitting machines may, of course, be utilized depending on the nature of the protective garment to be fabricated, the above description sets forth, in general terms, the type of parameters to be evaluated in selecting the desired wire si~es. In addition, of course, the ultimate utilization of the protective garment to be knitted from the yarn of the present invention will, in fact, create additional restrictions. For example, if protective gloves are being knitted from the yarn of the present invention, and if the protective gloves are to used in food handling plants, meat packing facilities and the like, then the wire must be compatible with these needs. 13y way of example, fi stainless steel grade 304 wire having a norninal diameter of ~0045 inches has been found suitable for use in connection with the polyethylene fibers of the present invention and for knitting the yarn of the present invention into a protective ~love for the meat paeking industry.
The polyethylene fiber referred to above and manufactured by Allied Corporation has been described by the manufacturer as an extended chain polyethylene with a polyethylene being, of course, a polyolefin. The materials 2475.002 13~31~0 have also been referred to as polyethylene fibers. These materials have also been described as based upon United States Patent No. 4,413,110, issued ~overnber 1, 1983. We understand that the term "polyolefin" is a more generic term and "polyethylene" is an example of a class of products which fall within the definition of polyolefin.
One additional aspect of ~he yarn used in the present invention should be mentioned in connection with the description o~ the rnaterial utilized in the core. When wire is utilized in the core of a yarn, for the purpose of providing cut resistance, it should be appreciated that the wire has relatively low resistance to elongation. It is for this reason that a strand of fiber having a high resistance to elongation is placed parallel to the wire strand within the core. Por exarnple, the ultimate elongation of the polyethylene of the present invention is 2.~% which is ten percent better than the aramid fiber.
It is not sufficient, however, to merely provide the parallel strands of wire and fiber; a covering must be provided to hold the core and to protect the user of the garment against breakage of the wire, abrasion from exposed wire and the like. Accordin~ly, and as suggested in B~rnes et al. United States Patent No. 4,384,449, a covering is provided for the core strands.
Referring back to Figure 1, the covering 14 is provided in the form of two wraps or strands 22, 24. The covering strands are wrapped with fiber 22 wrapped over the core in a first direction, such as counter-clockwise, and the second fiber 24 wrapped over the firs~ wire and over the core, of course, in the opposite direction. The aforementioned B~rnes et_aL patent suggests the need for an aramid fiber as the covering. However, we have discovered that one of the advantages and surprising benefits of the use of the Spectra fibers is that a softer covering may be utilized such as nylon to thus increase the comfort for the wearer of the garrnent. In this respect, for example, 420, 8~0 or 1260 denier nylon "Type 6" rn~nufactured by Allied Corporation may be utili~ed. Alternatively, Nylon 66 may be used. The first or inner wrap rnay even be wire.
131~30~
2475.002 The wrapping of the coYering on the core will be further explained. One of many standard types of wire covering machines, such as an Arnold, OMM, Ratti or ~CBF may be used. The first or inner wrap holds, protects, covers and cushions the core to protect the core and the user. The second or outer core also serves to protect, cover and cushion. The comlbination of the dual wrap, one clockwise and the other counterclockwise, further protects and increases cut resistance of the yarn if the yarn is used in a protective garment. The nylon, as is conventional, should be pre-shrunk.
Another embodiment or variation of the form of the present invention includes the addition of a third strand to the core; depending upon the desired utilization of the yarn and the protective garment, the third strand may be either a wire strand such as a filament grade 304 stainless steel wire, or a polyethylene fiber.
Referring now to Figure 29 the yarn of the present invention may be utilized to knit a protective garment such as glove 3D. The glove may be knitted on a conventional Matuya or Shima Seiki brand knitting machine and may be knitted from a single end of yarn. If a heavier duty glove is desired, two ends of yarn may be used in the Icnitting machine. If a very thin liner is desired, to go underneath a protective glove, a liner of cotton, or nylon, or OI the plain polyethylene fiber itself, without wire, may also be provided.
In addition to a protective glove, conventional knitting machines other than glove knitting machines may be utili~ed to knit the yarn into a fabric which may be used for cut-resistant aprons, arm protectors (sleeves), leg and foot protectors, head protection or the like. Figure 3 illustrates a garment 32 such as a protective apron.
247~.002 ~ 3~3~
Accordingly, while a preferred utilization of the yarn is for a cut resistant glove for use in meat packing industries or other industrial aPplications, it should be appreciated that the presont invention is not limited solely to g7OveS~
B
BACKG~OU~ID OF THE IN VENTION
l'he present invention relates generally to yarns and protective garments using such yarns and, more particularly, to an improved yarn which may be knitted to form an improved, more comfortable, more flexible, protective garment.
Prior to the present invention, technological developments of yarns for protective garments have cen~ered around the use of Kevlar, which is the DuPont trademark for an aramid fiber, as the fiber used in yarns, ~vhich yarns are ultimately used in protective garments. By way of example, and not by way of limitation, aramid fibers have been used in yarns with the yarns thereafter knitted to rnake protective garments ineluding bullet-resistant vests and protective gloves as exemplified by B~rnes, 'United States Patent No. 3,883,898.
In addition to the use of an ~ramid yarn as aforesaid, aramid fibers have been utilized in combination with other materials to form a yarn which yarn may be thereafter knitted to form a protective garment such as a protective glove with increased slash or cut resistance. Examples of this concept may be found in Byrnes Wnited States Patent No. 4,004,295, and B~rnes et al. United States Patent No. 4,384,449, each of which describes the use OI the Kevlar aramid fiber in combination with wire; the first of these two patents discloses the use of an aramid fiber yarn together with a metal wire~and the second of these two patents describes a composite yarn itself; the yarn including a core of aramid fiber plus flexible wire and a covering of ar~nid fiber.
There are, of course, certain recognized problems with the use of the aramid fiber as the constituent in a yarn ~o thereafter be utilized in protective garments. For example, aramid f ibers weaken in water. Second, the aramid fiber has only a limited resistance to true abrasion. 'rhird, ultraviolet light adversely affects the appearance of the aramid fiber and can cause discolorations ~ 3~3~0 475.0U2 in the aramid fiber, discolorations in the yarn and discoloration in the finished product.
~ ecently, a new high strength fiber has been announced by Allied Corporation. The fiber is an extended chain polyethylene, which is understood to be a member of the polyolefin family. The fiber has been sold under the trademark of Spectra with two different fibers being marketed, Spectra 1000 and Spectra 900. We understand that the Spectra 1000 is a 1200 denier fiber and that Spectra 900 is 650 denier fiber.
SUMMAR~ OF T~E INVENTION
The present invention provides a new and improved yarn and garment made from the yarn. The yarn includes a core and a covering, the core includes at least one wire strand and one polyethylene strand. The covering may be a polyethylene strand or a nylon strand.
The yarn and garment according to the present invention has numerous suhstantial advantages over the prior art, commercially available yarns such as those made of the Kevlar aramid f iber. For example, the polyethylene fiber has approximately 50 to 75% greater tensile strength than a comparable aramid fiber. The polyethylene fiber is resistant to ultraviolet light and thus does not result in undesirable color change when the fiber, or yarn made from the fiber, or finished product, are exposed to ultraviolet light. The fiber is inert, non-absorptive, non-allergenic and stable. The density of the Spectra 900 polyethylene fiber is, by way of example7 only two-thirds the density of Kevlar 4~
aramid fiber. Nonetheless, the pol~ethylene fiber has a substantially increased tensile strength, resistance to elonga~ion, a substantially increased abrasion resistance, and maintains greater flexibility despite the increases in strength. The fiber has a specific gravity of 1.0 or less7 typically 0.97. Thus the garment is stronger, more flexible and yet more comfortable than Kevlar-based garments.
~3~.~300 2475.002 BRIEF DESCRIPTION OF THE DRAWINGS
The various benefits and advantages of the present invention will be more easily understood upon reading the following detailed description of the invention taken in conjunction with the drawingsO
In the drawings, wherein like reference numerals identify corresponding components:
Figure 1 is an illustration of yarn used in accordance with the principles of the present invention;
Figure 2 is an illustration of a protective garment made in accordance with the principles of the present invention; and Pigure 3 is an illustration of another protective garment.
DETAILED DESCRIPTION OF THE INVENTION
With reference to the drawings, the improved yarn 10 of the present invention is illustrated in Figure 1 as being formed of a core 12 and a covering 14. The core 12 ineludes two substantially parallel strands; one strand 16 is formed of wire such as filament grade 304 stainless steel wire. The second strand 18 in the core is a strand of polyethylene fiber. The two strands are placed parallel to each other.
At this point, it is believed helpful to digress momentarily and provide details of the vnre and of the fiber which are included in the core. It should be appreciated that the wire diameter and wire material should be selected based upon the ultimate utilization of the yarn in a protective garment as well as any restrictions based on the capability of the knitting equipment which will be utili~ed to knit the yarn into the garment. If it is desired to make a cut resistant ~ ~ l o~ ) 0 475~002 glove, apron, sleeve or the like for industrial use, there are numerous filamentgrade wires which may be utilized. The objective, of course, is to minimize the wire diameter, to ma2cimize flexibility, while still maintaining the desired degree of cut resistance and, furthermore, the wire cannot be so thin as to readily break when either knitted into the garment or when the garment is utilized. Of s~ourse, iE the garment is a protective glove, the flexing of the glove on the hand of the wearer could cause the wire to break if the wire was too thin in diameter or if the wire had insufficient strength.
An additional factor in determining wire diameter is, of course, any limitations imposed by the knitting equipment. There are two conventional glove knitting machines presently on the market, one manufactured by Matuya and the other manufactured by Shima Seiki. With both of these knitting machines, there are limits as to the diameter of the yarn. Since the yarn includes both a core and a covering, the machine thus presents a maximum limit as to the diarneter of the wire which may be used. While other knitting machines may, of course, be utilized depending on the nature of the protective garment to be fabricated, the above description sets forth, in general terms, the type of parameters to be evaluated in selecting the desired wire si~es. In addition, of course, the ultimate utilization of the protective garment to be knitted from the yarn of the present invention will, in fact, create additional restrictions. For example, if protective gloves are being knitted from the yarn of the present invention, and if the protective gloves are to used in food handling plants, meat packing facilities and the like, then the wire must be compatible with these needs. 13y way of example, fi stainless steel grade 304 wire having a norninal diameter of ~0045 inches has been found suitable for use in connection with the polyethylene fibers of the present invention and for knitting the yarn of the present invention into a protective ~love for the meat paeking industry.
The polyethylene fiber referred to above and manufactured by Allied Corporation has been described by the manufacturer as an extended chain polyethylene with a polyethylene being, of course, a polyolefin. The materials 2475.002 13~31~0 have also been referred to as polyethylene fibers. These materials have also been described as based upon United States Patent No. 4,413,110, issued ~overnber 1, 1983. We understand that the term "polyolefin" is a more generic term and "polyethylene" is an example of a class of products which fall within the definition of polyolefin.
One additional aspect of ~he yarn used in the present invention should be mentioned in connection with the description o~ the rnaterial utilized in the core. When wire is utilized in the core of a yarn, for the purpose of providing cut resistance, it should be appreciated that the wire has relatively low resistance to elongation. It is for this reason that a strand of fiber having a high resistance to elongation is placed parallel to the wire strand within the core. Por exarnple, the ultimate elongation of the polyethylene of the present invention is 2.~% which is ten percent better than the aramid fiber.
It is not sufficient, however, to merely provide the parallel strands of wire and fiber; a covering must be provided to hold the core and to protect the user of the garment against breakage of the wire, abrasion from exposed wire and the like. Accordin~ly, and as suggested in B~rnes et al. United States Patent No. 4,384,449, a covering is provided for the core strands.
Referring back to Figure 1, the covering 14 is provided in the form of two wraps or strands 22, 24. The covering strands are wrapped with fiber 22 wrapped over the core in a first direction, such as counter-clockwise, and the second fiber 24 wrapped over the firs~ wire and over the core, of course, in the opposite direction. The aforementioned B~rnes et_aL patent suggests the need for an aramid fiber as the covering. However, we have discovered that one of the advantages and surprising benefits of the use of the Spectra fibers is that a softer covering may be utilized such as nylon to thus increase the comfort for the wearer of the garrnent. In this respect, for example, 420, 8~0 or 1260 denier nylon "Type 6" rn~nufactured by Allied Corporation may be utili~ed. Alternatively, Nylon 66 may be used. The first or inner wrap rnay even be wire.
131~30~
2475.002 The wrapping of the coYering on the core will be further explained. One of many standard types of wire covering machines, such as an Arnold, OMM, Ratti or ~CBF may be used. The first or inner wrap holds, protects, covers and cushions the core to protect the core and the user. The second or outer core also serves to protect, cover and cushion. The comlbination of the dual wrap, one clockwise and the other counterclockwise, further protects and increases cut resistance of the yarn if the yarn is used in a protective garment. The nylon, as is conventional, should be pre-shrunk.
Another embodiment or variation of the form of the present invention includes the addition of a third strand to the core; depending upon the desired utilization of the yarn and the protective garment, the third strand may be either a wire strand such as a filament grade 304 stainless steel wire, or a polyethylene fiber.
Referring now to Figure 29 the yarn of the present invention may be utilized to knit a protective garment such as glove 3D. The glove may be knitted on a conventional Matuya or Shima Seiki brand knitting machine and may be knitted from a single end of yarn. If a heavier duty glove is desired, two ends of yarn may be used in the Icnitting machine. If a very thin liner is desired, to go underneath a protective glove, a liner of cotton, or nylon, or OI the plain polyethylene fiber itself, without wire, may also be provided.
In addition to a protective glove, conventional knitting machines other than glove knitting machines may be utili~ed to knit the yarn into a fabric which may be used for cut-resistant aprons, arm protectors (sleeves), leg and foot protectors, head protection or the like. Figure 3 illustrates a garment 32 such as a protective apron.
247~.002 ~ 3~3~
Accordingly, while a preferred utilization of the yarn is for a cut resistant glove for use in meat packing industries or other industrial aPplications, it should be appreciated that the presont invention is not limited solely to g7OveS~
B
Claims (15)
1. A machine knittable protective garment knitted from at least one end of yarn, the yarn comprising a core and a covering;
the core including at least one strand of polyethylene fiber having a denier of between about 600 and about 1300; and the covering including at least two aramid-free strands, one of said aramid-free strands being formed of polyethylene fiber.
the core including at least one strand of polyethylene fiber having a denier of between about 600 and about 1300; and the covering including at least two aramid-free strands, one of said aramid-free strands being formed of polyethylene fiber.
2. A machine knittable yarn for use in making strong, flexible items, the yarn comprising a core and covering;
the core including at least one strand of polyethylene fiber having a denier between about 600 and about 1300; and a covering including at least two strands wrapped in opposite directions, relative to each other, about the core, each of said strands being aramid-free.
the core including at least one strand of polyethylene fiber having a denier between about 600 and about 1300; and a covering including at least two strands wrapped in opposite directions, relative to each other, about the core, each of said strands being aramid-free.
3. The invention as defined in claim 1 or 2 wherein the core includes at least one strand of wire.
4. The invention as defined in claim 1 or 2 wherein the core is essentially free of aramid fibers.
5. The invention as defined in claim 1 or 2 wherein the core includes at least one wire strand, the polyethylene strand and wire strand being positioned substantially parallel to each other.
6. The invention as defined in claim 1 or 2 wherein the covering includes at least one strand of polyethylene fiber.
7. The invention as defined in claim 1 or 2 wherein the covering is essentially aramid-free.
8. The invention as defined in claim 1 or 2 wherein the covering includes at least one strand of nylon.
9. The invention as defined in claim 1 or 2 wherein the core includes a fiber having a specific gravity no greater than that of water.
10. The invention as defined in claim 1 or 2 wherein the core includes a wire strand having a diameter of approximately .0045 inches a polyethylene strand having a denier of between about 600 and about 1300 and wherein the covering has a denier of between about 400 and about 1300 said covering being formed of nylon.
11. The invention as defined in claim 1 or 2 wherein the protective garment is a glove.
12. The invention as defined in claim 1 or 2 wherein the protective garment is an apron.
13. The invention as defined in claim 1 or 2 wherein the garment is knitted of two ends of yarn.
14. The invention as defined in claim 1 or 2 wherein the garment is knitted of two identical ends of yarn.
15. The invention as defined in claim 1 or 2 wherein the polyethylene fiber has an ultimate elongation of less than 3.0%
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US76684685A | 1985-08-16 | 1985-08-16 | |
| US76685585A | 1985-08-16 | 1985-08-16 | |
| US766,855 | 1985-08-16 | ||
| US766,846 | 1985-08-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1319300C true CA1319300C (en) | 1993-06-22 |
Family
ID=27117805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 515331 Expired - Lifetime CA1319300C (en) | 1985-08-16 | 1986-08-05 | Yarn and protective garment |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1319300C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106929970A (en) * | 2015-12-31 | 2017-07-07 | 南良实业股份有限公司 | High-tenacity cut resistant covering yarn |
-
1986
- 1986-08-05 CA CA 515331 patent/CA1319300C/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106929970A (en) * | 2015-12-31 | 2017-07-07 | 南良实业股份有限公司 | High-tenacity cut resistant covering yarn |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |
Effective date: 20100622 |