EP3664651A1 - Emballage résistant aux pointes et article - Google Patents

Emballage résistant aux pointes et article

Info

Publication number
EP3664651A1
EP3664651A1 EP18752994.6A EP18752994A EP3664651A1 EP 3664651 A1 EP3664651 A1 EP 3664651A1 EP 18752994 A EP18752994 A EP 18752994A EP 3664651 A1 EP3664651 A1 EP 3664651A1
Authority
EP
European Patent Office
Prior art keywords
spike resistant
grouping
pouch
textile layers
spike
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.)
Pending
Application number
EP18752994.6A
Other languages
German (de)
English (en)
Inventor
Yunzhang Wang
Heather J. Hayes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Milliken and Co
Original Assignee
Milliken and Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US15/671,902 external-priority patent/US10513806B2/en
Priority claimed from US15/671,884 external-priority patent/US10513805B2/en
Application filed by Milliken and Co filed Critical Milliken and Co
Publication of EP3664651A1 publication Critical patent/EP3664651A1/fr
Pending legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/0056—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof characterised by the compounding ingredients of the macro-molecular coating
    • D06N3/0063—Inorganic compounding ingredients, e.g. metals, carbon fibres, Na2CO3, metal layers; Post-treatment with inorganic compounds
    • 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
    • A41D31/24—Resistant to mechanical stress, e.g. pierce-proof
    • A41D31/245—Resistant to mechanical stress, e.g. pierce-proof using layered materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
    • B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
    • B32B3/28—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer comprising a deformed thin sheet, i.e. the layer having its entire thickness deformed out of the plane, e.g. corrugated, crumpled
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/024—Woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/026—Knitted fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/08—Interconnection of layers by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/08—Interconnection of layers by mechanical means
    • B32B7/09—Interconnection of layers by mechanical means by stitching, needling or sewing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • D—TEXTILES; PAPER
    • D03—WEAVING
    • D03D—WOVEN FABRICS; METHODS OF WEAVING; LOOMS
    • D03D13/00—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft
    • D03D13/008—Woven fabrics characterised by the special disposition of the warp or weft threads, e.g. with curved weft threads, with discontinuous warp threads, with diagonal warp or weft characterised by weave density or surface weight
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0414—Layered armour containing ceramic material
    • F41H5/0428—Ceramic layers in combination with additional layers made of fibres, fabrics or plastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0442—Layered armour containing metal
    • F41H5/0457—Metal layers in combination with additional layers made of fibres, fabrics or plastics
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H5/00—Armour; Armour plates
    • F41H5/02—Plate construction
    • F41H5/04—Plate construction composed of more than one layer
    • F41H5/0471—Layered armour containing fibre- or fabric-reinforced layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2255/00—Coating on the layer surface
    • B32B2255/26—Polymeric coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/02—Composition of the impregnated, bonded or embedded layer
    • B32B2260/021—Fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2260/00—Layered product comprising an impregnated, embedded, or bonded layer wherein the layer comprises an impregnation, embedding, or binder material
    • B32B2260/04—Impregnation, embedding, or binder material
    • B32B2260/046—Synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
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    • B32B2262/0253—Polyolefin fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
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    • B32B2262/0269—Aromatic polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/04—Cellulosic plastic fibres, e.g. rayon
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/14—Mixture of at least two fibres made of different materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/40—Properties of the layers or laminate having particular optical properties
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    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B32B2307/746—Slipping, anti-blocking, low friction
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    • B32B2553/00—Packaging equipment or accessories not otherwise provided for
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    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2571/00—Protective equipment

Definitions

  • the present application is directed to spike resistant packages and articles such as spike resistant vests.
  • a spike resistant package containing a pouch, a first grouping of spike resistant textile layers, and a slip layer.
  • Each of the textile layers within the first grouping of textile layers contains a plurality of interwoven yarns or fibers having a tenacity of about 5 or more grams per denier.
  • At least a portion of the spike resistant textile layers comprise about 10 wt. % or less, based on the total weight of the spike resistant textile layer, of a coating comprising a plurality of particles having a diameter of about 20 ⁇ or less on at least one of the surfaces of the spike resistant textile layer.
  • the slip layer has a stiffness of less than about 0.01 N-m and a static coefficient of friction (COF) between the slip layer and the second side of the first grouping of less than about 0.40.
  • COF static coefficient of friction
  • a spike resistant package containing a pouch, a first grouping of spike resistant textile layers, and a slip layer.
  • Each of the textile layers within the first grouping of textile layers contains a plurality of interwoven yarns or fibers having a tenacity of about 5 or more grams per denier.
  • the slip layer has a thickness of less than about 0.1 mm, a stiffness of less than about 0.01 N-m, and a static coefficient of friction (COF) between the slip layer and the second side of the first grouping of less than about 0.40.
  • COF static coefficient of friction
  • a spike resistant package containing a pouch, a first grouping of spike resistant textile layers where the inner surface of the pouch has a static COF between the inner surface of the pouch and the second side of the first grouping of less than about 0.40.
  • Each of the textile layers within the first grouping of textile layers contains a plurality of interwoven yarns or fibers having a tenacity of about 5 or more grams per denier.
  • At least a portion of the spike resistant textile layers comprise about 10 wt. % or less, based on the total weight of the spike resistant textile layer, of a coating comprising a plurality of particles having a diameter of about 20 ⁇ or less on at least one of the surfaces of the spike resistant textile layer.
  • the pouch essentially fully encapsulates the grouping of spike resistant textile layers and the slip layer and the slip layer and the inner surface of the pouch are in direct and intimate contact.
  • An article containing the package is also described.
  • a spike resistant package containing a pouch, a first grouping of spike resistant textile layers and a second grouping of spike resistant textile layers, wherein the static COF between the second side of the first grouping and the inner surface of the pouch is less than about 0.40.
  • Each of the textile layers within the first and second grouping of textile layers contains a plurality of interwoven yarns or fibers having a tenacity of about 5 or more grams per denier. At least a portion of the spike resistant textile layers comprise about 10 wt.
  • the spike resistant woven textile layers of the first grouping have a weave density of between about 20 and 45 warp and weft yarns per inch.
  • the spike resistant woven textile layers of the second grouping have a weave density of between about 15 and 35 warp and weft yarns per inch.
  • the pouch essentially fully encapsulates the first and second grouping of spike resistant textile layers.
  • An article containing the package is also described.
  • Figure 1 is a sectional view of one embodiment of a spike resistant package.
  • Figure 2 is a cross-sectional view of one embodiment of the first grouping of spike resistant textile layers.
  • Figures 3A, 3B, and 3C illustrate schematically cross-section of different embodiments of the spike resistant textile layers.
  • Figure 4 is a sectional view of one embodiment of a spike resistant package.
  • Figure 5 is an illustration of one embodiment of an article containing a spike resistant package.
  • spike resistant is generally used to refer to a material that provides protection against penetration of the material by sharp-pointed weapons or objects, such as an ice pick or a shank made by a prisoner.
  • a “spike resistant” material can either prevent penetration of the material by such an object or can lessen the degree of penetration of such an object as compared to similar, non- spike resistant materials.
  • a "spike resistant” material achieves a pass rating when tested against Level 1 , Spike class threats in accordance with National Institute of Justice (NIJ) Standard 01 15.00 (2000), entitled “Stab Resistance of Personal Body Armor.”
  • the term “spike resistant” can also refer to materials (e.g., a composite according to the invention) achieving a pass rating when tested against higher level threats (e.g., Level 2 or Level 3).
  • the invention can also be directed to a spike resistant package that also has knife and/or ballistic resistant properties.
  • the spike resistant textile layers can move freely and interact fully with the spike, dissipating energy effectively.
  • the spike resistant textile layers are enclosed inside a pouch, the movement of the spike resistant textile layers is restricted if the COF between the inner surface of the pouch and the second side of the spike resistant textile layer is high.
  • the spike resistant textile layers are not able to interact fully with the spike to effectively dissipate energy.
  • a slip layer with low COF and/or when a pouch with a low COF inner surface is used, the interaction between the spike resistant textile layers and the inner surface of the pouch is reduced, allowing the spike resistant textile layers to interact with the spike and dissipate energy more effectively.
  • the spike resistant package 10 contains a pouch 100 which contains the first grouping 200 of spike resistant layers 210 and the slip layer 300.
  • the pouch 100 contains an inner surface 100a and an outer surface 100b.
  • the pouch 100 at least partially surrounds the first grouping 200 of spike resistant layers 210 and the slip layer 300, more preferably, fully surrounds and encapsulates the first grouping 200 of spike resistant layers 210 and the slip layer 300.
  • the pouch 100 comprises a pouch textile.
  • the pouch textile can be any suitable textile including a woven, knit, or nonwoven textile.
  • the pouch textile can be made from fibers such as polyester, nylon, or other common fiber materials.
  • the pouch 100 may be a polymeric film, with or without fiber reinforcements.
  • the first grouping of textile layers 200 has a first side 200a and a second side 200b.
  • the spike resistant textile layers 210 are preferably woven textiles.
  • Each spike resistant textile layer 210 contains a plurality of interlocking yarns or fibers 212 having a tenacity of about 5 or more grams per denier, more preferably about 8 or more, more preferably about 10 or more, more preferably about 14 or more, more preferably 15 or more.
  • the plurality of yarns or fibers 212 have a tenacity of about 10 or more grams per denier and have a size of less than ten denier per filament, more preferably less than 5 denier per filament.
  • the fibers have an average diameter of less than about 20 micrometers, more preferably less than about 10 micrometers.
  • the spike resistant textile layers 210 can have any suitable weight. In certain possibly preferred embodiments, the spike resistant textile layers 212 can have a weight of about 2 to about 10 ounces per square yard.
  • Suitable fibers and yarns include, fibers made from highly oriented polymers, such as gel-spun ultrahigh molecular weight polyethylene fibers, melt-spun polyethylene fibers, melt-spun nylon fibers, melt-spun polyester fibers, and sintered polyethylene fibers.
  • Suitable fibers also include those made from rigid-rod polymers, such as lyotropic rigid-rod polymers, heterocyclic rigid-rod polymers, and thermotropic liquid-crystalline polymers.
  • Suitable fibers made from lyotropic rigid-rod polymers include aramid fibers, such as poly(p-phenyleneterephthalamide) fibers and fibers made from a 1 :1 copolyterephthalamide of 3,4'-diaminodiphenylether and p-phenylenediamine.
  • Suitable fibers made from heterocyclic rigid-rod polymers include poly(p-phenylene-2,6-benzobisoxazole) fibers (PBO fibers), poly(p-phenylene-2,6-benzobisthiazole) fibers (PBZT fibers), and poly[2,6-diimidazo[4,5-b:4',5'-e] pyridinylene-1 ,4-(2,5-dihydroxy)phenylene] fibers (PIPD fibers).
  • Suitable fibers made from thermotropic liquid-crystalline polymers include poly(6-hydroxy-2-napthoic acid-co-4-hydroxybenzoic acid) fibers.
  • Suitable fibers also include carbon fibers, such as those made from the high temperature pyrolysis of rayon, polyacrylonitrile, and mesomorphic hydrocarbon tar.
  • the yarns or fibers 1 13 and 212 comprise fibers selected from the group consisting of gel-spun ultrahigh molecular weight polyethylene fibers, melt-spun polyethylene fibers, melt-spun nylon fibers, melt-spun polyester fibers, sintered polyethylene fibers, aramid fibers, PBO fibers, PBZT fibers, PIPD fibers, poly(6-hydroxy-2-napthoic acid-co-4-hydroxybenzoic acid) fibers, carbon fibers, and combinations thereof.
  • the spike resistant textile layer 210 comprises aramid fibers 212.
  • the strike face layer 1 10 comprises aramid fibers 1 13.
  • the spike resistant textile layers 210 comprise about 10 wt. % or less, based on the total weight of the textile layer, of a coating comprising a plurality of particles having a diameter of about 20 ⁇ or less on at least one side of the textile layer 210. More preferably, the plurality of particles having a diameter of about 4 ⁇ or less, more preferably a diameter of about 2 ⁇ or less.
  • at least 50 % by number of the textile layers 210 contain the coating.
  • at least 75 % by number, more preferably at least about 90% by number of the textile layers 210 contain the coating.
  • each (essentially 100 % by number) of the textile layers 210 contain the coating.
  • the first group 200 preferably contains at least 2 spike resistant textile layers 210, more preferably at least about 3 layers, more preferably at least about4 layers. While the spike resistant textile layer 210 is described as being spike resistant, the textile layer 210 may also have knife and/or ballistic resistant properties.
  • the spike resistant textile layers 210 can have any suitable construction.
  • the spike resistant textile layers 210 can comprise a plurality of yarns provided in a knit or woven construction. The construction of the textile layers 210 resists slippage of the fibers or yarns past one another.
  • the spike resistant textile layers 210 can comprise a plurality of fibers provided in a suitable nonwoven construction (e.g., a needle-punched nonwoven, etc.).
  • the woven layer preferably includes a multiplicity of warp and weft elements interwoven together such that a given weft element extends in a predefined crossing pattern above and below the warp element.
  • One preferred weave is the plain weave where each weft element passes over a warp element and thereafter passes under the adjacent warp element in a repeating manner across the full width of the textile layer.
  • woven and interwoven are meant to include any construction incorporating interengaging formation fibers or yarns.
  • each textile layer within the grouping can be independently provided in each of the aforementioned suitable constructions.
  • the first grouping 200 may have five (5) spike resistant textile layers 210 in a knit construction and five (5) spike resistant textile layers 210 in a woven construction.
  • the different constructions may be grouped together, arranged in a repeating pattern or arranged randomly.
  • the spike resistant textile layers 210 comprise a plurality of yarns 212 provided in a woven construction.
  • the textile layers 210 of the first group grouping 200 have a weave density of between about 20 and 45 warps and wefts per inch, more preferably between about 25 and 45 warps and wefts per inch.
  • the spike resistance textile layers 210 have a tightness factor of greater than about 0.75 as defined in US Patents 6,133,169 (Chiou) and 6,103,646 (Chiou), which are incorporated herein by reference.
  • "Fabric tightness factor” and “Cover factor” are names given to the density of the weave of a fabric.
  • Cover factor is a calculated value relating to the geometry of the weave and indicating the percentage of the gross surface area of a fabric that is covered by yarns of the fabric. The equation used to calculate cover factor is as follows (from Weaving:
  • the fabric tightness factor is a measure of the tightness of a fabric weave compared with the maximum weave tightness as a function of the cover factor.
  • the maximum cover factor that is possible for a plain weave fabric is 0.75; and a plain weave fabric with an actual cover factor of 0.68 will, therefore, have a fabric tightness factor of 0.91 .
  • the preferred weave for practice of this invention is plain weave.
  • the yarns or fibers 212 of the spike resistant textile layers 210 can comprise any suitable fibers.
  • Yarns or fibers 212 suitable for use in the spike resistant textile layer 210 generally include, but are not limited to, high tenacity and high modulus yarns or fibers, which refers to yarns that exhibit a relatively high ratio of stress to strain when placed under tension.
  • the yarns or fibers of the spike resistant textile layers 210 typically have a tenacity of about 8 or more grams per denier.
  • the yarns or fibers of the spike resistant textile layers 210 can have a tenacity of about 10 or more grams per denier, more preferably 15 or more grams per denier.
  • the spike resistant textile layers 210 comprises a coating 215 on at least a surface thereof in a weight of about 10 wt. % or less, based on the total weight of the textile layer, of a coating comprising a plurality of particles having a diameter of about 20 ⁇ or less.
  • the coating can penetrate into the interior portion of the textile layer 210 to at least partially coat the yarns or fibers 212 of the spike resistant textile layer 210.
  • Figure 5A shows a spike resistant textile layer 210 with the coating 215 on both sides and in the interior of the fibers 212.
  • Figure 5B shows a spike resistant textile layer 210 with the coating 215 applied to one surface of the spike resistant textile layer 210.
  • Figure 5C shows a spike resistant textile layer 210 with the coating 215 on both sides of the fibers 212.
  • the coating 215 applied to the spike resistant textile layers 210 comprises particulate matter (e.g., a plurality of particles).
  • the particles included in the coating 215 can be any suitable particles, but preferably are particles having a diameter of about 20 ⁇ or less, or about 10 ⁇ or less, or about 1 ⁇ or less (e.g., about 500 nm or less or about 300 nm or less).
  • Particles suitable for use in the coating include, but are not limited to, silica particles, (e.g., fumed silica particles, precipitated silica particles, alumina-modified colloidal silica particles, etc.), alumina particles (e.g. fumed alumina particles), and combinations thereof.
  • the particles are comprised of at least one material selected from the group consisting of fumed silica, precipitated silica, fumed alumina, alumina modified silica, zirconia, titania, silicon carbide, titanium carbide, tungsten carbide, titanium nitride, silicon nitride, and the like, and combinations thereof.
  • Such particles can also be surface modified, for instance by grafting, to change surface properties such as charge and hydrophobicity.
  • Suitable commercially available particles include, but are not limited to, the following: CAB-O-SPERSE® PG003 fumed alumina, which is a 40% by weight solids aqueous dispersion of fumed alumina available commercially from Cabot Corporation of Boyertown, Pa. (the dispersion has a pH of 4.2 and a median average aggregate particle size of about 150 nm); SPECTRALTM 51 fumed alumina, which is a fumed alumina powder available commercially from Cabot Corporation of Boyertown, Pa.
  • the powder has a BET surface area of 55 m 2 /g and a median average aggregate particle size of about 150 nm
  • CAB-O-SPERSE® PG008 fumed alumina which is a 40% by weight solids aqueous dispersion of fumed alumina available commercially from Cabot Corporation of Boyertown, Pa. (the dispersion has a pH of 4.2 and a median average aggregate particle size of about 130 nm)
  • SPECTRALTM 81 fumed alumina which is a fumed alumina powder available commercially from Cabot Corporation of Boyertown, Pa.
  • the powder has a BET surface area of 80 m 2 /g and a median average aggregate particle size of about 130 nm
  • AEROXIDE ALU C fumed alumina which is a fumed alumina powder available commercially from Degussa, Germany (the powder has a BET surface area of 100 m 2 /g and a median average primary particle size of about 13 nm)
  • LUDOX ® CL-P colloidal alumina coated silica which is a 40% by weight solids aqueous sol available from Grace Davison (the sol has a pH of 4 and an average particle size of 22 nm in diameter)
  • NALCO ® 1056 aluminized silica which is a 30% by weight solids aqueous colloidal suspension of aluminized silica particles (26% silica and 4% alumina) available commercially from Nalco;
  • LUDOX ® TMA colloidal silica which is a 34% by weight solids aqueous colloidal silica sol available from Grace Davison, (the sol has a pH of 4.7 and an average particle size of 22 nm in diameter); NALCO ® 88SN-126 colloidal titanium dioxide, which is a 10% by weight solids aqueous dispersion of titanium dioxide available commercially from Nalco; CAB-O-SPERSE ® S3295 fumed silica, which is a 15% by weight solids aqueous dispersion of fumed silica available commercially from Cabot Corporation of
  • the dispersion has a pH of 9.5 and an average agglomerated primary particle size of about 100 nm in diameter);
  • CAB-O-SPERSE ® 2012A fumed silica which is a 12% by weight solids aqueous dispersion of fumed silica available
  • the dispersion has a pH of 10.2 and a median aggregate particle size of about 180 nm in diameter
  • CAB-O-SPERSE ® PG002 fumed silica which is a 20% by weight solids aqueous dispersion of fumed silica available commercially from Cabot Corporation of Boyertown, Pa. (the dispersion has a pH of 9.2 and a median aggregate particle size of about 150 nm in diameter)
  • CAB-O-SPERSE ® PG022 fumed silica which is a 20% by weight solids aqueous dispersion of fumed silica available
  • SIPERNAT ® 22LS precipitated silica which is a precipitated silica powder available from Degussa of Germany (the powder has a BET surface area of 175 m 2 /g and a median average primary particle size of about 3 ⁇ ); SIPERNAT ® 500LS precipitated silica, which is a precipitated silica powder available from Degussa of Germany (the powder has a BET surface area of 450 m 2 /g and a median average primary particle size of about 4.5 ⁇ ); and VP Zirconium Oxide fumed zirconia, which is a fumed zirconia powder available from Degussa of Germany (the powder has a BET surface area of 60 m 2 /g).
  • the particles can have a positive surface charge when suspended in an aqueous medium, such as an aqueous medium having a pH of about 4 to 8.
  • aqueous medium having a pH of about 4 to 8.
  • Particles suitable for use in this embodiment include, but are not limited to, alumina-modified colloidal silica particles, alumina particles (e.g. fumed alumina particles), and combinations thereof.
  • the particles can have a Mohs' hardness of about 5 or more, or about 6 or more, or about 7 or more.
  • Particles suitable for use in this embodiment include, but are not limited to, fumed alumina particles.
  • the particles can have a three-dimensional branched or chain-like structure comprising or consisting of aggregates of primary particles.
  • Particles suitable for use in this embodiment include, but are not limited to, fumed alumina particles, fumed silica particles, and combinations thereof.
  • the particles included in the coating can be modified to impart or increase the hydrophobicity of the particles.
  • the fumed silica particles can be treated, for example, with an organosilane in order to render the fumed silica particles hydrophobic.
  • Suitable commercially-available hydrophobic particles include, but are not limited to, the R- series of AEROSIL ® fumed silicas available from Degussa, such as AEROSIL ® R812, AEROSIL ® R816, AEROSIL ® R972, and AEROSIL ® R7200.
  • hydrophobic particles in the coating will minimize the amount of water that the layers and panel will absorb when exposed to a wet environment.
  • the hydrophobic particles can be applied using a solvent- containing coating composition in order to assist their application. Such particles and coatings are believed to be more fully described in U.S. Patent Publication No.
  • the spike resistant textile layers 210 can comprise any suitable amount of the coating 215. As will be understood by those of ordinary skill in the art, the amount of coating applied to the spike resistant textile layers 210 generally should not be so high that the weight of the flexible panel 10 is dramatically increased, which could potentially impair certain end uses for the panel 10. Typically, the amount of coating 215 applied to the spike resistant textile layers 210 will comprise about 10 wt.% or less of the total weight of the textile layer 210.
  • the amount of coating applied to the spike resistant textile layers 210 will comprise about 5 wt.% or less or about 3 wt.% or less (e.g., about 2 wt.% or less) of the total weight of the textile layer 210.
  • the amount of coating applied to the spike resistant textile layers 210 will comprise about 0.1 wt.% or more (e.g., about 0.5 wt.% or more) of the total weight of the textile layer 210.
  • the coating comprises about 2 to about 4 wt.% of the total weight of the textile layer 210.
  • the coating 215 applied to the spike resistant textile layers 210 can further comprise a binder.
  • the binder included in the coating 215 can be any suitable binder.
  • Suitable binders include, but are not limited to, isocyanate binders (e.g., blocked isocyanate binders), acrylic binders (e.g, nonionic acrylic binders), polyurethane binders (e.g., aliphatic polyurethane binders and polyether based polyurethane binders), epoxy binders, and combinations thereof.
  • the binder is a cross-linking binder, such as a blocked isocyanate binder.
  • the binder can comprise any suitable amount of the coating applied to the spike resistant textile layers 210.
  • the ratio of the amount (e.g., weight) of particles present in the coating to the amount (e.g., weight) of binder solids present in the coating 215 typically is greater than about 1 :1 (weight particles: weight binder solids).
  • the ratio of the amount (e.g., weight) of particles present in the coating 215 to the amount (e.g., weight) of binder solids present in the coating typically is greater than about 2:1 , or greater than about 3:1 , or greater than about 4:1 , or greater than about 5:1 (e.g., greater than about 6:1 , greater than about 7:1 , or greater than about 8:1 ). It is noted that when the coating 215 is applied to the spike resistant layer, the spike layer can have a much lower fabric tightness fabric to achieve the same level of spike resistance.
  • the coating 215 applied to the spike resistant textile layers 210 can comprise a water-repellant in order to impart greater water repellency to the flexible panel 10.
  • the water-repellant included in the coating can be any suitable water-repellant including, but not limited to, fluorochemicals or fluoropolymers.
  • the package 10 contains a second grouping of spike resistant fibers.
  • the first and second groupings may have the same or different yarns/fibers, construction, weave density, particle coating.
  • the second grouping is on the first side 200a of the first grouping 200 and contains woven spike resistant layer having a tighter weave than the textile layers 210 of the first grouping 200.
  • the second grouping has a weave density of between about 30 and 80 warp yarns per inch and between about 30 and 80 weft yarns per inch. In another embodiment, the second grouping is on the first side 200a of the first grouping 200 and contains woven spike resistant layer having a looser weave than the textile layers 210 of the first grouping 200. In one embodiment, the second grouping has a weave density of between about 15 and 35 warp yarns per inch and between about 15 and 35 weft yarns per inch. The second grouping may have less, the same, or more textile layers than the first grouping 200. In one embodiment, only one grouping contains the particle coatings (and the other groupings would not contain particle coatings). [0037] Referring back to Figure 1 , there is shown a slip layer 300 in the package
  • the slip layer can be any suitable layer and is placed on the second side 200b of the grouping of spike resistant layer 200.
  • the package 10 is oriented such that the slip layer 300 is between each side of the grouping 200 and the pouch 100. More preferably the slip layer is closer to the wearer of the article than the grouping 200.
  • the slip layer 300 may be loose within the pouch or may be adhered or otherwise attached to the inner surface 100a of the pouch 100 or the grouping 200.
  • the slip layer 300 is preferably in intimate contact with the inner surface 100a of the pouch 100, meaning that the slip layer 300 is in direct contact with the inner surface 100a with essentially nothing between them.
  • the slip layer may also be positioned between layers of the grouping 200.
  • the slip layer is a polymeric film, preferably an oriented thermoplastic polymeric film.
  • the slip layer has a thickness of less than about 0.2 mm, more preferably less than about 0.1 mm.
  • the slip layer preferably has a low static coefficient of friction (COF) in contact with the textile layers which enables the textile layers and their yarns to slide relative to the inner surface of the pouch.
  • Static COF is measured following ASTM D1894 - Standard Test Method for Static and Kinetic Coefficients of Friction of Plastic Film and Sheeting.
  • the dynamic or kinetic COF is the steady state resistance to movement between the two materials tested with a constant load of 200 gf and a constant velocity of 150 mm/min.
  • the static COF is the initial resistance to the movement.
  • the static COF between the second side 200b of the first grouping of spike resistant textile layers 200 and the slip layer 300 is less than about 0.50.
  • the static between the slip layer 300 and the inner surface 100a of the pouch 100 is less than about 0.45 and more preferably less than 0.40.
  • the slip layer is incorporated into the pouch or is absent, then preferably static COF between the second side 200b of the first grouping of spike resistant textile layers 200 and the inner surface 100a of the pouch 100 is less than about 0.40.
  • the slip layer allows the spike resistant textile layers to move readily relative to the pouch inner surface allowing the spike to be more effectively stopped from penetrating the pack.
  • the package 10 contains additional slip layers.
  • additional slip layers can be of the same materials and properties as the first slip layer 300 or may use different materials and have different properties.
  • the additional slip layers may be in any suitable location within the pouch 100, for example, an additional slip layer on the inner surface of the pouch 100 on the second side 200b of the grouping 200, on the inner surface of the pouch 100 on the first side 200a of the grouping 200, within the grouping 200 between the spike resistant textile layers 210, and between the first grouping and second grouping of spike resistant textile layers.
  • the slip layer 300 is incorporated into the pouch 100.
  • the slip layer 300 and the pouch 100 are co-extruded together.
  • the slip layer is coated, adhered, laminated, or otherwise attached to an already formed pouch 100.
  • the pouch is formed from a woven fabric and the slip layer is coated onto the fabric.
  • the slip layer 300 forms inner surface 100a of the pouch 300.
  • the package does not contain a slip layer 300 between the second side of the first grouping and the inner surface of the pouch.
  • the low friction inner surface of the pouch may be achieved through the selection of yarns, coatings or treatments to yarns, agents that bloom to the surface during manufacture of yarns or films, or coatings or treatments to the inner surface of the pouch.
  • the spike resistant package 10 is flexible, where flexible is defined to be able to be bent to a radius of one foot or less without effecting performance.
  • the spike resistant package 10 of the invention is particularly well suited for use in personal protection devices, such as personal body armor.
  • the spike resistant package 1 0 can be incorporated into an article 12 (in this figure a vest) in order to provide the wearer protection against spike threats.
  • the package 10 is incorporated into an article to protect the user from spike threats. Some articles include shirts, jackets, pants, vests, shoes, helmets, and hats.
  • the article contains a slot or pocket that the package 10 can be placed in and out of.
  • the package 10 is easily removable from the article for laundering.
  • the package 10 may also contain layers directed towards knife and/or ballistics resistance.
  • the makeup of these additional layers would be chosen by the desired package properties as well as the location of these layers within the package 10.
  • the additional layers may add additional spike, knife, and/or ballistic resistance or other desired properties.
  • suitable known puncture resistant materials or components include, but are not limited to, mail (e.g., chain mail), metal plating, ceramic plating, layers of textile materials made from high tenacity yarns which layers have been impregnated or laminated with an adhesive or resin, or textile materials made from low denier high tenacity yarns in a tight woven form such as DuPont KEVLAR CORRECTIONAL ® available from DuPont.
  • high performance flexible ballistic resistant materials include DYNEEMA UD ® available from DSM Dymeema, and GOLDFLEX ® available from Honeywell International Inc. These high performance flexible ballistic materials may be used together with the spike resistant package 10 to enhance overall ballistic performance.
  • the process to form the spike resistant textile layers 210 where the spike resistant textile layers 210 comprising a plurality of interwoven yarns or fibers having a tenacity of about 5 or more grams per denier, wherein at least one of the surfaces of the spike resistant textile layer comprises about 10 wt. % or less, based on the total weight of the textile layer, of a coating comprising a plurality of particles having a diameter of about 20 ⁇ or less comprises the steps of
  • the surface(s) of the textile layers can be contacted with the coating composition in any suitable manner.
  • the textile layers can be contacted with the coating composition using conventional padding, spraying (wet or dry), foaming, printing, coating, and exhaustion techniques.
  • the textile layers can be contacted with the coating composition using a padding technique in which the textile layer is immersed in the coating composition and then passed through a pair of nip rollers to remove any excess liquid.
  • the nip rollers can be set at any suitable pressure, for example, at a pressure of about 280 kPa (40 psi).
  • the surface of the textile layer to be coated can be first coated with a suitable adhesive, and then the particles can be applied to the adhesive.
  • the coated textile layers can be dried using any suitable technique at any suitable temperature.
  • the textile layers can be dried on a conventional tenter frame or range at a temperature of about 160 °C (320 °F) for approximately five minutes.
  • the formed spike resistant textile layer comprises about 10 wt. % or less, based on the total weight of the textile layer, of a coating comprising a plurality of particles having a diameter of about 20 ⁇ or less may be found in US Patent
  • the layers 210 can be disposed adjacent to each other and held in place relative to each other by a suitable enclosure, such as a pocket or can be attached to each other by any known fastening means.
  • the layers 1 10 and 210 can also be sewn together in a desired pattern, for example, around the corners or along the perimeter of the stacked textile layers in order to secure the layers in the proper or desired arrangement.
  • the layers 210 and 1 10 may be adhered together using a patterned adhesive or other fastening means such as rivets, bolts, wires, tape, or clamps.
  • the layers are loose (not attached to each other using any adhesive or mechanical means are placed together within the pouch.
  • Spike stab resistance was tested according to NIJ Standard 01 15.00 (2000), entitled “Stab Resistance of Personal Body Armor”.
  • the stab energy of the drop mass was set at 65 J (Protection Level 3 at "E2" strike energy).
  • Passing is defined to be a penetration of less than 20mm.
  • the NIJ engineered spikes were used as the threat weapon purchased from Precision Machine Works.
  • the nylon pouch of the package was a back-coated, water resistant nylon bag sealed on three sides.
  • Kevlar fabric JPS STYLE 767 ® available from JPS Composite Materials located in Anderson, South Carolina was obtained.
  • the Kevlar fabric was comprised of KEVLAR KM2+ 600 denier warp and fill yarns woven together in a plain weave construction with 28 ends/inch and 28 picks/inch.
  • the fabric layer weighed 150 gsm after scouring to remove any yarn finishes present.
  • a spike resistant layer was prepared by coating the KEVLAR ® fabric in an aqueous bath comprising: a) approximately 20% CAB-O-SPERSE PG003 ® , a fumed alumina dispersion (40% solids) with 150 nm particle size available from Cabot Corporation, and b) 2% MILLITEX RESIN MRX ® , a blocked isocyanate based cross-linking agent (35-45% by wt. solids) available from Milliken Chemical.
  • the solution was applied using a padding process (dip and squeeze at a roll pressure of 40 psi).
  • the fabric was then dried at 320°F.
  • the dry weight add-on of the chemical on the fabric was approximately 2%.
  • the coated fabric layer will be designated as the "A” layer in the following examples. "B” Layer
  • the Kevlar fabric was comprised of KEVLAR KM2+ 400 denier warp and fill yarns woven together in a plain weave construction with 36 ends/inch and 36 picks/inch.
  • the fabric layer weighed 120 gsm after scouring to remove any yarn finishes present.
  • a spike resistant layer was prepared by coating the KEVLAR ® fabric in an aqueous bath comprising: a) approximately 20% CAB-O-SPERSE PG003 ® , a fumed alumina dispersion (40% solids) with 150 nm particle size available from Cabot Corporation, and b) 2% MILLITEX RESIN MRX ® , a blocked isocyanate based cross-linking agent (35-45% by wt. solids) available from Milliken Chemical.
  • the solution was applied using a padding process (dip and squeeze at a roll pressure of 40 psi).
  • the fabric was then dried at 320°F.
  • the dry weight add-on of the chemical on the fabric was approximately 3%.
  • the coated fabric layer will be designated as the "B" layer in the following examples.
  • the Kevlar fabric was comprised of KEVLAR KM2+ 400 denier warp and fill yarns woven together in a plain weave construction with 36 ends/inch and 36 picks/inch.
  • the fabric layer weighed 120 gsm after scouring to remove any yarn finishes present.
  • the fabric layer will be designated as the "C" layer in the following examples.
  • PE black low density polyethylene
  • a polypropylene film (“PP") was made at 50 micrometer thickness as a blown film from PROFAX ® SR257m resin available from Lyondell Basell based in Houston, Texas. The film had an areal density of 47 gsm
  • Table 1 The pouch compositions for the Examples are shown in Table 2.
  • Table 2 The assembly was tested for spike stab resistance.
  • the results of the spike testing are shown in Table 3.
  • Example 1 was formed from arranging the following layers in order: 6 "B” layers and 9 "A” layers with the grouping of "B" layers oriented as the strike face surface. The layers were encased in the nylon pouch I to form the package. The example had an areal density of 2.12 kg/m 2 excluding the pouch weight.
  • Example 2 was formed from arranging the following layers in order: 6 "B” layers and 9 "A” layers with the grouping of "B" layers oriented as the strike face surface. The layers were tested without the use of a nylon pouch. The example had an areal density of 2.12 kg/m 2 .
  • Example 3 was formed from arranging the following layers in order: 6 "B” layers and 9 "A” layers with the grouping of "B” layers oriented as the strike face surface. The layers were encased in the nylon pouch with the PE film (slip layer) placed between the "A” layers and the nylon pouch I. The example had an areal density of 2.12 kg/m 2 excluding the pouch weight.
  • Example 4 was formed from 12 "A" layers. The layers were encased in the nylon pouch I. The example had an areal density of 1 .82 kg/m 2 excluding the pouch weight.
  • Example 5 was formed from 12 "A" layers. The layers were encased in nylon pouch II for testing. The example had an areal density of 1 .82 kg/m 2 excluding the pouch weight.
  • Example 6 was formed from 12 "A" layers. The layers were encased in nylon pouch III for testing. The example had an areal density of 1 .82 kg/m 2 excluding the pouch weight.
  • Example 7
  • Example 7 was formed from 12 "A” layers. The layers were encased in nylon pouch I for testing with the PP film placed opposite the strikeface between the "A" layers and the pouch. The example had an areal density of 1 .87 kg/m 2 excluding the pouch weight.
  • Table 2 shows the static COF between various layers and materials within the package.
  • Table 3 shows the testing results of the examples.
  • Examples 3 and 7 embody the invention wherein the panel contains at least one slip layer.
  • Examples 1 and 4 - 6 represent common practice in stab vests wherein the stab resistant layers are encased directly in a water resistant pouch.
  • Example 2 shows that by removing the pouch altogether, spike resistance is improved.
  • the pouch serves to protect the spike layers but when it restricts the movement of the layers in response to a stab threat, the pouch can reduce the ability of the spike layers to resist
  • Examples 5 and 6 show that replacing a high COF pouch with a much lower COF pouch creates a similar effect by reducing slip resistance and improving spike resistance.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Laminated Bodies (AREA)
  • Woven Fabrics (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)

Abstract

L'invention concerne un emballage résistant aux pointes contenant une poche, un premier groupe de couches textiles résistantes aux pointes et une couche de glissement. Chaque couche textile à l'intérieur du premier groupe de couches textiles contient une pluralité de fils ou de fibres entrelacés ayant une ténacité supérieure ou égale à environ 14 grammes par denier. La couche de glissement a une épaisseur inférieure à environ 0,1 mm, une rigidité inférieure à environ 0,01 N-m, et un coefficient de frottement statique (COF) entre la couche de glissement et le second côté du premier groupe inférieur à environ 0,40. La poche encapsule sensiblement intégralement le groupe de couches textiles résistantes aux pointes et la couche de glissement, et la couche de glissement et la surface interne de la poche sont en contact direct et étroit.L'invention concerne en outre un article contenant l'emballage.
EP18752994.6A 2017-08-08 2018-07-26 Emballage résistant aux pointes et article Pending EP3664651A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US15/671,902 US10513806B2 (en) 2017-08-08 2017-08-08 Spike resistant package and article
US15/671,884 US10513805B2 (en) 2017-08-08 2017-08-08 Spike resistant package and article
PCT/US2018/043951 WO2019032308A1 (fr) 2017-08-08 2018-07-26 Emballage résistant aux pointes et article

Publications (1)

Publication Number Publication Date
EP3664651A1 true EP3664651A1 (fr) 2020-06-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP18752994.6A Pending EP3664651A1 (fr) 2017-08-08 2018-07-26 Emballage résistant aux pointes et article

Country Status (6)

Country Link
EP (1) EP3664651A1 (fr)
AU (1) AU2018313688B2 (fr)
CA (1) CA3071535C (fr)
IL (1) IL272157B (fr)
MX (1) MX2020001379A (fr)
WO (1) WO2019032308A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024158586A1 (fr) * 2023-01-26 2024-08-02 Milliken & Company Emballage résistant aux pointes et article

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4916000A (en) 1987-07-13 1990-04-10 Allied-Signal Inc. Ballistic-resistant composite article
US5437905A (en) 1994-05-17 1995-08-01 Park; Andrew D. Ballistic laminate structure in sheet form
US6103646A (en) 1997-08-08 2000-08-15 E. I. Du Pont De Nemours And Company Penetration-resistant ballistic article
US6133169A (en) 1998-03-20 2000-10-17 E. I. Du Pont De Nemours And Company Penetration-resistant ballistic article
US6922847B2 (en) * 2002-07-26 2005-08-02 Second Chance Body Armor, Inc. Multipurpose thin and lightweight stab and ballistic resistant body armor and method
US7825048B2 (en) * 2005-10-17 2010-11-02 Milliken & Company Puncture resistant composite
MX2011013321A (es) * 2009-06-11 2012-02-28 Barrday Inc Articulos resistentes a la penetracion giratoriamente desviados.
GB0914994D0 (en) * 2009-08-28 2009-09-30 Kerr Andrew R E Multi-layer armour
GB2496678B (en) * 2011-11-17 2015-07-15 Bae Systems Plc Protective material

Also Published As

Publication number Publication date
AU2018313688B2 (en) 2021-04-29
AU2018313688A1 (en) 2020-02-13
CA3071535C (fr) 2024-01-02
NZ761110A (en) 2021-10-29
IL272157A (en) 2020-03-31
MX2020001379A (es) 2020-03-09
BR112020001696A2 (pt) 2020-07-21
IL272157B (en) 2022-04-01
CA3071535A1 (fr) 2019-02-14
WO2019032308A1 (fr) 2019-02-14

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