EP0758479A1 - Atmungsfähiges material für schutzkleidung für menschen zur abschirmung gegen elektromagnetische hochfrequenzfelder - Google Patents
Atmungsfähiges material für schutzkleidung für menschen zur abschirmung gegen elektromagnetische hochfrequenzfelderInfo
- Publication number
- EP0758479A1 EP0758479A1 EP95917951A EP95917951A EP0758479A1 EP 0758479 A1 EP0758479 A1 EP 0758479A1 EP 95917951 A EP95917951 A EP 95917951A EP 95917951 A EP95917951 A EP 95917951A EP 0758479 A1 EP0758479 A1 EP 0758479A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- protection device
- yarns
- silver
- polymer
- layer
- 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.)
- Granted
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 39
- 230000005672 electromagnetic field Effects 0.000 title abstract description 9
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052709 silver Inorganic materials 0.000 claims abstract description 27
- 239000004332 silver Substances 0.000 claims abstract description 27
- 229920000642 polymer Polymers 0.000 claims abstract description 26
- 239000012876 carrier material Substances 0.000 claims abstract description 17
- 239000004952 Polyamide Substances 0.000 claims abstract description 15
- 229920002647 polyamide Polymers 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims abstract description 12
- 239000000835 fiber Substances 0.000 claims description 26
- 239000004744 fabric Substances 0.000 claims description 12
- 238000004132 cross linking Methods 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 238000001931 thermography Methods 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 3
- 229920000058 polyacrylate Polymers 0.000 claims description 3
- -1 polydimethylsiloxane Polymers 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 claims description 2
- 239000011247 coating layer Substances 0.000 abstract 2
- 238000003384 imaging method Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 241000282412 Homo Species 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 230000009931 harmful effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000010287 polarization Effects 0.000 description 2
- 241000272525 Anas platyrhynchos Species 0.000 description 1
- 229920002955 Art silk Polymers 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052946 acanthite Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010073 coating (rubber) Methods 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 229940021013 electrolyte solution Drugs 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004060 metabolic process Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- XUARKZBEFFVFRG-UHFFFAOYSA-N silver sulfide Chemical compound [S-2].[Ag+].[Ag+] XUARKZBEFFVFRG-UHFFFAOYSA-N 0.000 description 1
- 229940056910 silver sulfide Drugs 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 230000035900 sweating Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B99/00—Subject matter not provided for in other groups of this subclass
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B17/00—Protective clothing affording protection against heat or harmful chemical agents or for use at high altitudes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q17/00—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems
- H01Q17/005—Devices for absorbing waves radiated from an antenna; Combinations of such devices with active antenna elements or systems using woven or wound filaments; impregnated nets or clothes
Definitions
- the invention relates to a protective device for people for shielding against high-frequency electromagnetic fields and / or for camouflaging against thermal imaging devices with a carrier material in the form of a suit, which is provided with shielding fibers, yarns or additional shielding components.
- transmitters operating in the high-frequency range can endanger persons through electromagnetic fields with a higher power density.
- the effect of the electromagnetic high-frequency waves on the cell structure is essentially a heat effect, also called a thermal effect. If heat exposure due to radiation is exceeded, which the human body normally regulation of sweat / 3, it can lead to harmful effects of heat by the electromagnetic waves on the organism.
- Ionizing rays in a frequency spectrum above the light range are so high in energy that they can cause damage in the molecules of the cell tissue.
- the harmful radiation density is already 5 mW / cm 2 . It was found that a power flux density of 10 mW / cm 2 when absorbed in humans already gives a heating power of 1 W / kg comparable to the basic metabolism.
- Backing materials in the form of suits which are designed as a textile net with silver and a subsequent rubber coating. Nets with embedded metal foils are also known.
- metal fibers or metal wires e.g. VA short fibers, copper fila duck, tinned copper threads, polyester filament yarns covered with copper and the like. Because of the susceptibility of the metal filaments, in particular to breakage, or the metal fibers being worked out during practical use, such carrier materials are only of limited suitability.
- a further disadvantage of the known carrier materials with metal layers was that there was insufficient corrosion resistance and / or abrasion resistance. Oxidations often occurred, which in turn impaired the protective effect of the metals.
- Oxidations often occurred, which in turn impaired the protective effect of the metals.
- In the military area too, there are dangers for people who, for example, have to be in the immediate vicinity of ra systems and / or move. In addition, these people should also be able to camouflage themselves from an enemy.
- the present invention is therefore based on the object of creating an effective protective device of the type mentioned at the outset, which not only provides high shielding but also has good practical properties which are necessary for work, such as e.g. good abrasion resistance, washability and breathability or air permeability and therefore no body heat build-up (also no heat absorption by the fabric).
- the protective device for military purposes should ensure camouflage against thermal imaging devices for the person carrying it.
- the covering of these fibers or yarns with a polymer layer ensures appropriate stability or the polymer protects the yarn or the fibers and the silver against environmental influences.
- washability and abrasion resistance are achieved in this way. It is only necessary to ensure that no closed layer or no closed carrier material is achieved by the covering with a polymer layer, so that breathability remains. It just wraps the fibers or yarns carried out. Gaps or pores remain between the yarns or fibers.
- the polymer layer also provides good temperature resistance and high cold flexibility. In addition, resistance to weak acids, alkalis and electrolyte solutions, e.g. through sweating. In addition, the carrier material or the base material has good light, weather, aging and hydrolysis resistance.
- the polymer coating prevents silver sulfide formation.
- the carrier material formed in this way is not only washable, but also dry-cleanable.
- the production of the base material or carrier material according to the invention can advantageously be carried out by applying a crosslinking polymer, for example a crosslinking polymer, to polyamide fibers or polyamide yarns that have already been completely metallized with a silver layer.
- a crosslinking polymer for example a crosslinking polymer
- Polydimethylsiloxane polyacrylate is applied.
- coating can also be carried out by padding.
- Foularding is a kind of immersion bath with rollers over which the yarns or the fabric, braid, fleece or the like are guided.
- the fibers or yarns provided with the polymer layer are then briefly heated to a temperature between 160 and 180 ° C. after the drying process, as a result of which crosslinking takes place.
- crosslinking a chemical conversion takes place, the radicals of the polymer jumping open and crosslinking into larger groups. This results in a structurally modified, stable material.
- Fig. 1 schematic representation of a protective suit
- the base material for the protective suit is polyamide fibers or polyamide yarns 1, which are also known under the trademark nylon, as 6.6 ripstop fabrics or as so-called parachute silk.
- Such a fabric is completely covered with 35% by weight of a pure silver layer 2 and thus metallized, ie each individual fiber of the fabric has a complete silver coating with very good adhesion.
- the fabric created in this way can have a weight class of approximately 50 g / m 2 .
- a crosslinking polydimethylsiloxane polyacrylate is applied via an application process, the silver layer 2 being sealed by the resulting polymer layer 3. More polymer should not be applied, since polymers tend to absorb more heat.
- the application can also be carried out by so-called fouling.
- the fabric After a drying process, the fabric is briefly heated to temperatures of 160 to 180 ° C. in order to achieve crosslinking.
- the pore size of the fabric is selected so that even after being coated with the polymer layer 3 there is still sufficient space or pores between the individual fibers or yarns so that breathability is achieved preserved.
- the carrier material produced in this way is now made up into a protective suit in such a way that proper shielding and, if desired, camouflage of the human being is achieved by making up a whole body.
- a one-piece protective suit 4 in overalls form is preferably provided, which is provided with a nickel-plated zipper 5 at the appropriate points. If necessary, nickel-plated hook-and-loop fasteners are of course also possible.
- the protective suit 4 must not ne wide sleeves and pants ends so that the radiation can not penetrate. For this reason, the ends of the sleeves and trousers will be kept tight with zippers or elastic bands.
- the gloves 6 and socks 7 will be made of the same material as the protective suit 4 and correspondingly long with gauntlets and an elastic band.
- the socks will generally be designed with a double outsole.
- Shoes 8 must be electrically conductive, e.g. be provided with appropriately designed PVC soles so that they do not become electrostatically charged.
- a protective helmet or hood 9 is to be provided over the protective suit 4 in the head area, which is made of the same material as the protective suit 4.
- the protective helmet 9 or the hood is to be closed by a face shield 10 and in the protective suit can be integrated inside with a large overlap.
- a mesh fabric or lattice bars 11 coated with metal is used as face protection or visual field 10.
- the protective suit 4 will generally be worn in the civilian sector as a base suit for protection against the electromagnetic fields in the MHz / GHz range, over which a normal work suit is then put on, so that the protective suit 4 against damage, thereby reducing the shielding effect would be compromised.
- the protective suit 4 could also be formed in one piece as a complete work suit by a corresponding combination with a conventional work suit or an externally attached material.
- the protective suit 4 When the protective suit 4 is used in the military field, a function in thermal imaging in the sense of camouflage being desired, the suit must be worn as an upper suit in order to create camouflage in relation to thermal imaging devices. In this case, in contrast to working in the civilian sector, it is not absolutely necessary to protect the protective suit from damage. This means that in this case, in addition to protection against electromagnetic fields, e.g. in the immediate area of radar systems, there is also camouflage.
- the protective suit can also be used as a camouflage suit for people, even if there are no health problems due to electromagnetic fields.
- a protective suit in the specified composition is outstandingly suitable for camouflaging people in the thermal imaging area.
- the shielding attenuation for electromagnetic radiation is effective in a frequency range from 100 MHz to 100 GHz, the minimum shielding attenuation being 20 dB.
- the suit For camouflage against thermal imaging devices in the thermal imaging range of, for example, 10 12 to 10 15 Hz, the suit must be worn as an upper suit.
- the required camouflage in the optical and near infrared only 50% of the area with color green and black is applied as camouflage on the outside of the protective suit 4. The remaining 50% of the area remains the urban, generally brown, inherent color of the fabric.
- a protective suit 4 in the specified composition does not radiate any heat visible in thermal imaging devices and also does not radiate heat from outside. takes what he is excellently suited for military purposes.
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Toxicology (AREA)
- Professional, Industrial, Or Sporting Protective Garments (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
- Laminated Bodies (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4415372A DE4415372C2 (de) | 1994-05-02 | 1994-05-02 | Atmungsfähiges Material für Schutzbekleidung zur Abschirmung gegen elektromagnetische Hochfrequenzfelder und Verfahren zum Herstellen des Trägermaterials |
DE4415372 | 1994-05-02 | ||
PCT/EP1995/001548 WO1995030229A1 (de) | 1994-05-02 | 1995-04-25 | Schutzvorrichtung für menschen zur abschirmung gegen elektromagnetische hochfrequenzfelder |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0758479A1 true EP0758479A1 (de) | 1997-02-19 |
EP0758479B1 EP0758479B1 (de) | 1998-05-13 |
Family
ID=6517041
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95917951A Expired - Lifetime EP0758479B1 (de) | 1994-05-02 | 1995-04-25 | Atmungsfähiges material für schutzkleidung für menschen zur abschirmung gegen elektromagnetische hochfrequenzfelder |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0758479B1 (de) |
AT (1) | ATE166175T1 (de) |
AU (1) | AU2407495A (de) |
DE (2) | DE4415372C2 (de) |
WO (1) | WO1995030229A1 (de) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19743389C2 (de) * | 1997-09-30 | 2000-11-23 | Univ Dresden Tech | Schutzanzug für Arbeiten unter Hochspannung |
DE19754474A1 (de) * | 1997-12-08 | 1999-06-10 | Franz Laboeck | Vorrichtung zum Abschirmen |
DE19929077A1 (de) * | 1999-06-25 | 2000-12-28 | Samina Produktions Und Handels | Silbergewebe zur Abschirmung elektrischer und hochfrequenter magnetischer Felder |
DE19952521A1 (de) * | 1999-10-30 | 2001-05-03 | Texplorer Gmbh | Atmungsfähiges Material für Schutzbekleidung |
DE20311375U1 (de) | 2003-07-24 | 2003-10-23 | W. Zimmermann GmbH, 88171 Weiler-Simmerberg | Garne und Gewebe zur Abschirmung elektromagnetischer Strahlung |
DE10353582A1 (de) * | 2003-11-13 | 2005-06-16 | Daniel Ostmann | Schutzeinrichtung gegen Einwirkungen von Hochspannungsschlägen, z.B. Elektroschocker, und gegen elektromagnetische Spannungsfelder |
DE102004011514B4 (de) * | 2004-03-08 | 2010-09-30 | W.E.T. Automotive Systems Ag | Elektrisches Heizelement |
JP4494460B2 (ja) | 2004-03-08 | 2010-06-30 | ヴィー・エー・テー・オートモーティヴ・システムス・アクチェンゲゼルシャフト | 平形加熱要素 |
AT503678B1 (de) * | 2004-03-09 | 2009-07-15 | Fronius Int Gmbh | Arbeitsbekleidung für schweissprozesse |
GB0418288D0 (en) | 2004-08-17 | 2004-09-15 | High Voltage Pulse Technology | Protective article of outer clothing |
WO2007119966A1 (en) | 2006-04-13 | 2007-10-25 | Lg Chem, Ltd. | Resin composition comprising catalyst precursor for electroless plating to form electromagnetic wave shielding layer, methods for forming metal patterns using the resin composition and metal patterns formed by the methods |
DE102006021649C5 (de) | 2006-05-08 | 2013-10-02 | W.E.T. Automotive Systems Ag | Flächiges Heizelement |
DE102006026047B4 (de) | 2006-06-01 | 2015-06-11 | Gentherm Gmbh | Heizelement, Sitz und Fahrzeug mit einem solchen |
WO2008114295A1 (en) * | 2007-03-22 | 2008-09-25 | Carraro S.R.L. | Accessory for anti-electric-shock garment |
BRPI0721392A2 (pt) * | 2007-03-22 | 2013-01-01 | Carraro S R L | traje a prova de choque elétrico |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3164840A (en) * | 1961-02-27 | 1965-01-12 | Filtron Company Inc | Radiation protective garment |
JPS6075669A (ja) * | 1983-10-03 | 1985-04-30 | 豊田合成株式会社 | 金属付着繊維物 |
JPS60134067A (ja) * | 1983-12-19 | 1985-07-17 | 豊田合成株式会社 | 繊維物 |
DE3587893T2 (de) * | 1984-11-13 | 1994-11-10 | Bentley Harris Mfg Co | Abschirmgewebe und erzeugnis. |
US4793130A (en) * | 1986-06-20 | 1988-12-27 | Mitsubishi Rayon Co., Ltd. | Thin-metal-wire conjugated yarn |
EP0419527B1 (de) * | 1988-06-13 | 1993-01-27 | Nsp Nukleare Sicherheits-Produkte Gmbh | Garn und verfahren zu dessen herstellung sowie verwendung desselben |
JP2861059B2 (ja) * | 1989-06-08 | 1999-02-24 | 三菱マテリアル株式会社 | 金属被覆不織布及びその製造方法 |
-
1994
- 1994-05-02 DE DE4415372A patent/DE4415372C2/de not_active Expired - Fee Related
-
1995
- 1995-04-25 EP EP95917951A patent/EP0758479B1/de not_active Expired - Lifetime
- 1995-04-25 AT AT95917951T patent/ATE166175T1/de active
- 1995-04-25 AU AU24074/95A patent/AU2407495A/en not_active Abandoned
- 1995-04-25 DE DE59502180T patent/DE59502180D1/de not_active Expired - Lifetime
- 1995-04-25 WO PCT/EP1995/001548 patent/WO1995030229A1/de active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO9530229A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE59502180D1 (de) | 1998-06-18 |
AU2407495A (en) | 1995-11-29 |
DE4415372C2 (de) | 1996-12-12 |
EP0758479B1 (de) | 1998-05-13 |
WO1995030229A1 (de) | 1995-11-09 |
DE4415372A1 (de) | 1995-11-09 |
ATE166175T1 (de) | 1998-05-15 |
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