Classifications

• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B13/00—Soles; Sole-and-heel integral units
  • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
  • A43B13/10—Metal
• • 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
  • F41H1/00—Personal protection gear
  • F41H1/02—Armoured or projectile- or missile-resistant garments; Composite protection fabrics
• • 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
• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B13/00—Soles; Sole-and-heel integral units
  • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
  • A43B13/12—Soles with several layers of different materials
• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
  • A43B17/04—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined with metal insertions or coverings
• • A—HUMAN NECESSITIES
  • A43—FOOTWEAR
  • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
  • A43B7/00—Footwear with health or hygienic arrangements
  • A43B7/32—Footwear with health or hygienic arrangements with shock-absorbing means
• • 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
  • F41H5/0435—Ceramic layers in combination with additional layers made of fibres, fabrics or plastics the additional layers being only fibre- or fabric-reinforced layers
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10S428/00—Stock material or miscellaneous articles
  • Y10S428/911—Penetration resistant layer
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T428/00—Stock material or miscellaneous articles
  • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
  • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
  • Y10T428/24471—Crackled, crazed or slit
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
  • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
  • Y10T442/2615—Coating or impregnation is resistant to penetration by solid implements
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
  • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
  • Y10T442/2615—Coating or impregnation is resistant to penetration by solid implements
  • Y10T442/2623—Ballistic resistant
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
  • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
  • Y10T442/2861—Coated or impregnated synthetic organic fiber fabric
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
  • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
  • Y10T442/2861—Coated or impregnated synthetic organic fiber fabric
  • Y10T442/2893—Coated or impregnated polyamide fiber fabric
  • Y10T442/2902—Aromatic polyamide fiber fabric

Definitions

• the invention relates to protective clothing, especially clothing for Protection against stab and shot injuries, consisting of several Layers of fabrics made of high-strength materials.
• police forces are required to wear protective clothing not only against injuries from knives, daggers and to protect similar stabbing devices, but also that Protection against needle-like pricks, also partially used to attack police forces.
• DE-C 4 407 180 describes the use of a metal insert which is embedded in a polyurethane matrix for stab protection clothing proposed.
• This metal insert is in the form of a net-like structure made of steel chains.
• the disadvantage This type of stab protection clothing is that it is only good Offers protection against blade stabs such as knives, daggers etc. but not against very pointed, needle-like pricking devices.
• US-A 4 933 231 describes a foam-laminated dense fabric made of high-strength aliphatic polyamide fibers, the appears particularly suitable for cut protection clothing. With In this embodiment, there is no stab protection that meets the requirements who meets security forces.
• Stab protection clothing made of overlapping panels made of glass fiber reinforced Plastic arranged on a textile support WO 92-08 094 describes such protective clothing does not offer the desired one due to lack of flexibility Comfort.
• US-A 5 562 264 suggests the use of extreme for this dense fabrics made of relatively fine yarn. With these is intended in the same way to protect against stab wounds and bullet wounds can be achieved. This problem solving can not satisfy, because the fabrication of the fabric is very expensive need to be used and weaving in very dense Attitude to fiber damage can cause, above all the holding effect for projectiles suffers. Besides that is also the Stab protection in this embodiment is not for the specifications sufficient in all countries.
• stab protection clothing is made up of several layers proposed by metal foils. By combination with laminates Ball protection is also achieved from aramid fiber fabrics. Next This protective clothing offers the high price for metal foils not satisfactory because of the lack of flexibility Comfort. The rustling is also caused through the metal foils, felt uncomfortable when worn. A similar version of stab protection clothing can be found in EP-A 640 807, in the sheet of narrow strips be proposed by metal foils.
• thermoplastic matrix resin to a plate shaped package of fabrics, for example of aramid fibers, is described in EP-A 597 165. These are relatively rigid Structures do not offer the desired comfort.
• clothing is used as combined protective clothing serve against gunshot and stab wounds and should also offer impact protection, in the actual Stab protection layers made of mutually displaceable Metal plates that form the outer layer of the protective clothing, manufactured. Underneath is a tissue package as bullet protection. This protective clothing also shows that with metal plates common disadvantages of low flexibility and relative high weight, which affects the comfort.
• DE-U 94 08 834 is for combined stab and bullet protection a package of superimposed, alternating Layers of textile fabrics made of aramid fibers and metal braids proposed.
• the disadvantage of this embodiment is the low protection against needle-like pricking devices.
• WO 96 - 03 277 describes protective clothing that has at least one Position of a flat structure, on which by means of plasma spray coating a ceramic layer is applied.
• This type of protective clothing will have a good protective effect against stab and bullet wounds, the manufacture is but complicated because of the plasma spray coating to be used here and also unfavorable in terms of cost.
• it can Application of the ceramic layer to a partial interlocking the ceramic particles as a result of the high temperatures in the plasma come so that the protective effect against puncturing devices may suffer something.
• Protective clothing against stab and bullet injuries usually made up of several layers. in this connection are garments with different Layer numbers in use.
• the choice of the number of layers is of various factors such as required Protection effect, desired wearing comfort, costs for the clothes etc. dependent.
• the general rule is that the Number of layers as low as possible but as high as necessary from the point of view of protection needs got to.
• WO 98/45 662 discloses a puncture resistant material made from a solid Particle coated carrier, which is based on a Package of fabrics is arranged.
• the Coating consists of abrasive particles with a diameter of 0.1 to 3 mm, and the package of fabrics is thicker than 1.5 mm.
• WO 98/45 662 can use several coated carriers be provided.
• the solid particles are on the carrier but with a bituminous or polyurethane-containing adhesive applied.
• the protective layers of stab and bulletproof clothing are normal made of fabrics made of high-strength materials. These fabrics are preferably textile fabrics, particularly preferably around fabrics. Next Fabrics can also be used for other textile fabrics such as knitted fabrics, Nonwovens, laid scrims etc. are used.
• high-strength materials are materials that have high strength have good protection against exposure of projectiles and puncture devices. in this connection it is primarily polymers that can be processed into fibers are.
• Protective clothing comes preferably aramid fibers, after the gel spinning process spun polyethylene fibers, polyimide fibers, Polybenzoxazole fibers, fully aromatic polyester fibers, high tenacity Polyamide fibers, high-strength polyester fibers and fibers with similar properties. Be particularly preferred Aramid fibers.
• Aramid fibers often called aromatic polyamide fibers are often used in protective clothing. These are fiber materials made from polyamides, the essentially by polycondensation of aromatic Acids or their chlorides generated with aromatic amines become. Aramid fibers, which are made from Poly-p-phenylene terephthalamide exist. Such fibers are, for example commercially available under the brand name Twaron.
• Aramid fibers are not only meant to be fibers that are complete built up from aromatic acid or amine components are understood, but are under this name also to understand fiber materials whose polymer is more than 50% made from aromatic acids and aromatic amines and that is also aliphatic, alicyclic or heterocyclic Contains compounds in the acid and / or amine portion.
• aramid fibers in the form of filament yarns or spun yarns are used.
• Filament yarns Yarns are also among spun yarns understand that manufactured by the tear converting process have been.
• the titer of the yarns to be used are between 200 and 3,400 dtex, titer between 400 and 1,500 dtex are preferred.
• the filament titer is usually below 5 dtex, preferred under 1.5 dtex.
• the fabrics are preferably made in plain weave, others Weaves, such as a Panama or twill weave, can also be selected for fabric production become.
• the number of threads depends on the yarn titer used and on the desired weight per unit area of the fabrics to be used for the protective layers.
• the basis weights of these fabrics should be between 50 and 500 g / m 2 , preferably between 100 and 300 g / m 2 .
• a fabric to be used advantageously for the protective clothing according to the invention is produced, for example, in plain weave from a yarn with a titer of 930 dtex.
• the thread counts are 10.5 / cm in warp and weft. With such an adjustment, a fabric with a basis weight of approx. 200 g / m 2 is obtained.
• the information given here is to be understood as an example and not as restrictive.
• Chemical fibers usually contain from fiber production a preparation that i.a. also the running characteristics of the Yarns positively influenced in the fabric production.
• a washing treatment for example coating to prepare the application of a hard material layer
• the washing conditions like temperature, Treatment time and additives to the wash bath are known to the person skilled in the art known.
• the washing conditions are chosen so that the Residual preparation content after this treatment is less than 0.1%.
• the fabric is then dried, which is usually the case is carried out on a stenter.
• Fabrics used to form the actual ball protection layers in the protective clothing according to the invention are provided and cannot be provided with a hard material coating are used in this form.
• a hydrophobization for example using a polymeric or polymerizable fluorocarbon compound.
• Washed fabrics are preferred for the hard material coating used, but there is also the possibility of so-called use raw, unwashed fabrics.
• a primer is applied to the fabric for hard material coating applied. This is necessary to prevent intrusion for the absorption of the hard materials afterwards to be applied binder layer to prevent in the carrier tissue.
• a large number of different products can be used for the primer are used. Examples include phenolic resins, Urea resins, latex in cross-linked or uncross-linked Mold, called epoxy resins or polyacrylate resins.
• phenolic resins Urea resins
• latex in cross-linked or uncross-linked Mold called epoxy resins or polyacrylate resins.
• dispersed resin or the precursors for the resin the coating compound for the primer still fillers in a share of 30-70%. For example, as a filler Find calcium carbonate.
• the primer is applied in an amount of 40-100 g / m 2 . After the liquid in the coating slip has evaporated, approx. 30-75 g / m 2 are still present on the fabric as a primer.
• connection classes come into question, how they are specifically mentioned above for the primer.
• the main coat also contains a proportion of filler, which can amount to 20 - 50% of the total amount of binder.
• the wet quantity for the main coat is between 90 and 150 g / m 2 . After drying, the amount of main coat binder is 60-120 g / m 2 .
• hard materials are inorganic substances with a high degree of hardness, as in the abrasive layer of Abrasives are used to understand. Examples of this are silicon carbide, corundum (aluminum oxide), tungsten carbide, Titanium carbide, molybdenum carbide, zirconium corundum (fused corundum with 40% zirconium oxide), boron carbide or boron nitride.
• This list hard materials that are not exhaustive, is given as examples and not as restrictive understandable. Are preferred for the formation of the hard material layer Silicon carbide and / or corundum used.
• the substances mentioned are preferably used alone, but it can also work with mixtures of different hard materials become.
• the hard materials can be used in various forms. So-called blocky and pointed shapes are preferred.
• the former are preferably round particle shapes. These have the advantage that they have a high bulk density is achievable.
• the shape of the hard material particles has only higher particle diameters have a certain importance, with smaller ones Particle diameters make up the differences in the Particle shape hardly noticeable.
• the hard materials are applied to a layer of binder provided pad according to one of the when applied methods common to abrasives.
• the application is carried out with Using an electrostatic field.
• This possibility of moving hard material particles in the electrostatic field is used in abrasive technology used in such a way that the preceded and main line Pad along the top electrode by the electrostatic Field is driven.
• the coated side of the pad faces the counter electrode.
• the hard particles, which are on the lower electrode migrate in the electrostatic field from bottom to top to the counter electrode and are anchored there in the binder film of the underlay.
• the introduction of the hard material particles into the electrostatic Field is done with the help of an endless conveyor belt moved along the lower electrode and onto the outside of the electrostatic field by means of a scattering funnel the hard materials have been sprinkled.
• the electrodes are preferably plate electrodes, but linear and pointed electrodes can also be used.
• the hard material layer is the slurry also known in abrasive manufacturing.
• the hard materials are in the binder mass stirred in and poured into the base or painted.
• the fabric coated with hard materials for the invention Protective clothing is preferred using the Gravity scattering, because with this method a high density of hard material particles can be achieved.
• the Binder film After the hard materials have been applied, the Binder film at a temperature of approx. 130 ° C.
• the thickness of the binder film takes away from liquid from, so that the hard material particles more strongly to the surface of the kick the coated side.
• This reduction in the thickness of the Binder film is also made in the slurry process take advantage of by evaporating liquid and reducing it the thickness of the film is given the possibility in a binder mixture stirred in hard materials after drying to let the surface get there.
• Fabric also a surface seal the hard material layer.
• a thin Layer of an elastomeric polymer on the hard material layer applied for example by spraying a dispersion an elastomer can take place.
• Another possibility offers itself with the help of a roller application.
• One is running Roll through a storage trough in which the to be applied Dispersion located. After leaving the trough, the Roll the excess of the entrained dispersion, for example with the help of a doctor knife, so that on the Application roller creates a thin film on the hard material layer is transmitted.
• the sealing layer is cured in a similar manner Way as for the binder layer, preferably by a drying treatment.
• the last step is a flex process.
• Flexing is a defined breaking of the rigid Base layer mechanically, creating small islands the binder layer including that anchored in this layer Hard materials arise on the carrier material.
• the one with flexing created flexibility of the carrier material coated with hard materials is probably due to the fine formed here Crack structures in the adhesive film.
• the conditions for the flexing and the necessary machines are in the Abrasives industry well known.
• Flexing provides good elasticity with hard materials coated fabrics for use in the invention
• Protective clothing achieves what is in the comfort of this Apparel makes very noticeable.
• the manufactured in the manner described, with hard materials coated fabrics have, depending on the Diameters of the hard materials used, thicknesses between 0.1 and 1.5 mm, preferably between 0.2 and 0.8 mm.
• the thickness of the hard material layer is determined according to the method known in the textile industry for measuring the Tissue thickness. First, the thickness of the uncoated Fabric and then the thickness of the hard material coated fabric determined. The measurement is done here according to DIN 53 353. The difference in thickness results the thickness of the hard material layer.
• Protective clothing that only protects against stab wounds should offer is from more than one layer, preferably 2 - 20 layers, particularly preferably 6 to 15 layers of the hard material coated Fabric made.
• the locations are laid on top of each other and suitable for the clothes Tailored way.
• the consolidation of the individual layers with each other is done for example by two, a cross shape forming seams of approx. 10 cm each in the middle of the blank. Another way of consolidating the layers is one punctiform gluing.
• the locations are also possible without introducing each other into the protective clothing, as in the case of flat structures coated with hard materials Slipping of the layers occurs much less than with non-coated ones Fabrics.
• the hard material layer gives especially in hard materials, but also in uncoated neighboring locations, anchoring in Form of a kind of Velcro effect, so that slipping largely is prevented.
• textile Sheets such as fabrics or knitted fabrics as Base material for coating with hard materials Find.
• the yarns are not covered open spaces available.
• the hard materials can be stored in these penetrate the neighboring layer and anchor there. With foils with a largely closed surface this is not possible or only to a lesser extent.
• the package thus formed is then wrapped in a cotton fabric or a fabric made of polyester-cotton blended yarns brought in.
• Mixed yarns made from viscose fibers and m-aramid fibers can be used for this.
• This tissue is dyed or printed on the side visible when worn. It is particularly important to ensure that the actual Protection package, consisting of flat materials coated with hard materials, is easy to remove, so uncomplicated To allow cleaning, especially the cover.
• a cushion layer For protective clothing that only protects against stab wounds can serve under the actual protective layers, on the side adjacent to the body, after a cushion layer be attached.
• These cushion layers result from the action of a stitch device, for example of a knife, a cushioning effect that reduces that can contribute to stitch penetration. It also springs they act on the body when a stitch device is used Print something.
• Textiles are preferred for the production of this cushion layer Flat structures, particularly preferably needle felts or nonwovens made of high-strength fibers. Are suitable for this in a special way aramid fibers. They work in addition to the above Cushioning effect also an additional stab protection.
• the flat materials coated with hard materials are used in the Protective clothing preferably arranged so that the hard material layer is on the side facing away from the carrier. On this is the case when using single-sided coated fabrics achieved the best stab protection effect. But it is also possible, the coated side inwards, ie the carrier facing, to arrange or a mutual arrangement the hard-coated layer in the stab protection package to choose.
• Clothing that offers a combined stab and bullet protection is made from more than one layer, preferably from 2 to 20 layers, particularly preferably from 6 to 15 layers of fabrics which are coated with hard materials and 6 - 50 layers of non-coated Fabric built up.
• the number of layers of not coated fabrics in protective clothing for combined Stab and bullet protection is preferably 8-40, especially preferably 16-35.
• the non-coated aramid fabric which is the actual bullet protection package form, arranged on the side facing the body. These fabrics are made in the same way like this above for the aramid fabrics as base materials for the Hard material coating has been described.
• the protection package for the combined stab and bullet protection can be designed so that the actual stab protection layers, these are the layers coated with hard materials, with the non-coated aramid fabrics are connected. To do this for example, cuts from 6 to 50 layers of uncoated Aramid fabrics placed on top of each other. Be about this 2 - 20 layers of fabric coated on one side with hard materials laid so that the coated side is the top forms.
• the individual layers of the package thus formed are for example in the manner described above with an over Cross-stitched double seam or with point-by-point gluing solidified.
• the package When producing the protective clothing, the package is then like described above, sealed in a film sleeve and then in a fabric cover, for example made of a polyester-cotton blend yarn, brought in. This introduction takes place so that the flat materials coated with hard materials are on the side facing away from the carrier and that a Stitcher or a projectile first on those coated with hard materials Layers.
• a particularly preferred embodiment of the combined Stab and bulletproof clothing offers a variant, the one optional use for protection against one type of each Types of threats, i.e. protection against stab wounds or for protection against bullet injuries. And it can also used at the same time to protect against both types of threats become.
• the actual bullet protection package is first made 6 - 50 layers of an aramid fabric not coated with hard materials formed by stacking suitable blanks and solidified in the manner described. This package is in a film is sealed.
• a shell is made of, for example a dyed or printed polyester-cotton fabric educated.
• This fabric cover comes with a Velcro or zipper provided for easy insertion and removal to enable one of the two packages or both packages.
• a stab protection is not required and only a threat expected by projectiles, so the actual stab protection package taken from fabrics coated with hard materials and the protective clothing alone with a package of aramid fabrics, that are not provided with a hard material layer, be used.
• the protective effect shows a dependence on the average Grain diameter of the hard material particles.
• a diameter range of 10 - 500 ⁇ m was found.
• a grit from P 220 to FEPA corresponds, for example, in the case of Corundum or silicon carbide with an average grain diameter of 66 ⁇ m.
• the grain diameters are subject a scatter. So are the middle mentioned as an example Grain diameter of 66 ⁇ m scatter, which is usually one Normal distribution are subject to between approx. 40 and 90 ⁇ m expect.
• the stab protection properties were tested on the basis of to the research and development center for police technology, Weg, published guidelines.
• the test blade must have an energy of 35 J (this corresponds to a fall height of 1.35 m) on the test material act.
• a homogeneous film of one Lithium soap grease applied to the test blade.
• a plasticine block is placed behind the test material as background material appropriate.
• the intrusion into this block or the resulting one Bulge are the assessment parameters for the Puncture-proof characteristics.
• According to the guidelines of the Germans police apply a stab protection material that is a penetration depth less than 20 mm or a bulge less than 40 mm, as suitable for the equipment of security guards.
• the drop height and drop weight were varied, which results in different stitch energies.
• the test is also carried out here by assessing the puncture.
• the drop heights and drop weights used in the tests correspond to the following stab energies: Fall weight in g Fall height in cm Stitch energy in J 7 027 1 0.7 7 027 50 35 2 403 10 2.3 2 403 90 21.2 2 403 100 23.6
• the bullet test was also based on the research and development center for police technology, Weg, published guidelines performed.
• test material is bombarded from a distance of 10 m, determining the floor speed in each case is.
• a plasticine block is placed behind the actual test material appropriate. With the help of the depth of penetration into the plastillin the so-called trauma effect is assessed.
• aramid fabrics were coated with a hard material layer.
• the fabric was made from aramid filament yarns with a titer of 930 dtex. The same type of yarn was used for warp and weft. The thread count was 10.5 threads / cm in each case. In this way, a fabric with a basis weight of 198 g / m 2 was obtained.
• This fabric was washed and, after intermediate drying, coated with a primer made from modified polyacrylate. 45% calcium carbonate was incorporated as a filler into the dispersion of the modified polyacylate resin.
• the amount of primer was chosen so that the amount applied was 70 g / m 2 wet. After drying, there was an overlay of 53 g / m 2 on the fabric. Drying was carried out at 100 ° C.
• the actual binder coat was then applied, for which a filler-containing dispersion of a phenolic resin precursor was used.
• the amount of resin was 70%, the amount of filler (calcium carbonate) 30%.
• the amount of binder layer was chosen so that the amount of binder wet 121 g / m 2 (dry mass 90 g / m 2 ).
• the tissue prepared in this way was run into a Bestreuzone, where silicon carbide particles with an average grain diameter of 66 ⁇ m, which corresponds to a grain size of P 220, were applied.
• the binder film was then cured at a temperature of 130.degree.
• the fabric coated with hard materials was then subjected to a cross-flex treatment.
• the Puncture depth must not be more than 20 mm.
• a protective package was formed from 10 layers of an aramid fabric coated with hard materials in the manner described. This was arranged in front of a package consisting of 24 layers of an uncoated aramid fabric with a basis weight of approx. 200 g / m 2 . In this way, a protection package for the combined stab and bullet protection was created. The arrangement was such that the actual stab protection layers, that is to say the aramid fabric coated with hard materials, formed the top during the bombardment test, which means that when the bombardment hit the bullet first hit the layers coated with hard materials.

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• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Materials Engineering (AREA)
• Ceramic Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Health & Medical Sciences (AREA)
• Epidemiology (AREA)
• General Health & Medical Sciences (AREA)
• Public Health (AREA)
• Textile Engineering (AREA)
• Professional, Industrial, Or Sporting Protective Garments (AREA)
• Laminated Bodies (AREA)
• Details Of Garments (AREA)
• Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
• Polishing Bodies And Polishing Tools (AREA)
• Materials For Medical Uses (AREA)
• Respiratory Apparatuses And Protective Means (AREA)
• Radiation-Therapy Devices (AREA)
• Woven Fabrics (AREA)
• Gloves (AREA)

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Publications (2)

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ID=7855294

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• 1998
  • 1998-01-22 DE DE19802242A patent/DE19802242C2/de not_active Expired - Lifetime
• 1999
  • 1999-01-15 CO CO99001974A patent/CO4780058A1/es unknown
  • 1999-01-18 EE EEP200000439A patent/EE04601B1/xx not_active IP Right Cessation
  • 1999-01-18 TR TR2000/02116T patent/TR200002116T2/xx unknown
  • 1999-01-18 DE DE59903739T patent/DE59903739D1/de not_active Expired - Lifetime
  • 1999-01-18 RU RU2000122093/02A patent/RU2206858C2/ru not_active IP Right Cessation
  • 1999-01-18 WO PCT/EP1999/000258 patent/WO1999037969A1/de active IP Right Grant
  • 1999-01-18 JP JP2000528835A patent/JP4176959B2/ja not_active Expired - Fee Related
  • 1999-01-18 DK DK99902548T patent/DK1058808T3/da active
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  • 1999-01-18 PL PL99341858A patent/PL188950B1/pl not_active IP Right Cessation
  • 1999-01-18 US US09/600,820 patent/US6656570B1/en not_active Expired - Lifetime
  • 1999-01-18 KR KR1020007008030A patent/KR100585033B1/ko not_active IP Right Cessation
  • 1999-01-18 YU YU46400A patent/YU49214B/sh unknown
  • 1999-01-18 EP EP99902548A patent/EP1058808B1/de not_active Expired - Lifetime
  • 1999-01-18 HU HU0102551A patent/HU227648B1/hu not_active IP Right Cessation
  • 1999-01-18 AU AU22799/99A patent/AU743770B2/en not_active Ceased
  • 1999-01-18 CN CN99802326A patent/CN1093629C/zh not_active Expired - Fee Related
  • 1999-01-18 ES ES99902548T patent/ES2184409T3/es not_active Expired - Lifetime
  • 1999-01-18 AT AT99902548T patent/ATE229636T1/de active
  • 1999-01-18 BR BR9907152-5A patent/BR9907152A/pt not_active IP Right Cessation
  • 1999-01-20 ZA ZA9900408A patent/ZA99408B/xx unknown
• 2000
  • 2000-07-06 HR HR20000455A patent/HRP20000455B1/xx not_active IP Right Cessation
  • 2000-07-19 NO NO20003697A patent/NO318076B1/no not_active IP Right Cessation

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