FR2710247A1 - Personal protective equipment, including protective gloves. - Google Patents
Personal protective equipment, including protective gloves. Download PDFInfo
- Publication number
- FR2710247A1 FR2710247A1 FR9311207A FR9311207A FR2710247A1 FR 2710247 A1 FR2710247 A1 FR 2710247A1 FR 9311207 A FR9311207 A FR 9311207A FR 9311207 A FR9311207 A FR 9311207A FR 2710247 A1 FR2710247 A1 FR 2710247A1
- Authority
- FR
- France
- Prior art keywords
- protective
- ceramic
- equipment according
- gloves
- equipment
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D19/00—Gloves
- A41D19/015—Protective gloves
- A41D19/01505—Protective gloves resistant to mechanical aggressions, e.g. cutting. piercing
-
- 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
Abstract
L'invention concerne un équipement de protection individuelle, comportant un revêtement extérieur protecteur en céramique et/ou métallique sur un substrat textile souple. Le revêtement extérieur protecteur est avantageusement obtenu par une technique de projection à chaud.The invention relates to personal protective equipment, comprising a protective external ceramic and / or metallic coating on a flexible textile substrate. The protective external coating is advantageously obtained by a hot spraying technique.
Description
L'invention concerne des equipements de protection individuelle <EPI), etThe invention relates to personal protective equipment (PPE), and
notamment des gants en vue de la manipulation de produits finis ou en cours de fabrication. Les équipements de protection individuelle, et notamment les gants utilisés pour manipuler des objets, industriels ou non, sont à l'heure actuelle réalisés par enduction de caoutchouc ou de matières plastiques (PVC par exemple) sur un substrat textile souple. Les inconvénients principaux sont qu'ils ne fournissent pas une bonne préhension de produits humides ou lubrifiés, en raison d'une adhérence insuffisante, que l'agilité et la précision des mouvements de la main sont considérablement limitées, qu'ils ne sont pas satisfaisants lorsque les pièces sont à une température élevee et qu'ils presentent des risques de coupure et de especially gloves for handling finished products or during manufacture. Personal protective equipment, including gloves used to handle objects, industrial or not, are currently made by coating rubber or plastics (PVC for example) on a flexible textile substrate. The main disadvantages are that they do not provide a good grip on wet or lubricated products, due to insufficient adhesion, that the agility and precision of the movements of the hand are considerably limited, that they are not satisfactory when the parts are at a high temperature and there is a risk of cutting and
piqûre importants.important punctures.
L'invention pallie ces inconvénients en fournissant un équipement de protection individuelle, et notamment des gants de protection, comportant un revêtement extérieur protecteur en ceramique et/ou métallique sur The invention overcomes these drawbacks by providing personal protective equipment, and in particular protective gloves, comprising a protective external ceramic and / or metallic coating on
un substrat textile souple, ou similaire. a flexible textile substrate, or the like.
Un tel revêtement présente notamment les avantages suivants: - résistance remarquable à températures moyennes et élevées, - résistance remarquable à l'abrasion, - dans des conditions particulières, résistance à la piqûre par des aiguilles, - bonne résistance à la coupure, Such a coating has the following advantages in particular: - remarkable resistance to medium and high temperatures, - remarkable resistance to abrasion, - under special conditions, resistance to puncture by needles, - good resistance to cutting,
- dextérité et épaisseurs limitées. - limited dexterity and thickness.
Le revêtement exérieur protecteur peut consister en une simple couche de céramique ou métallique, ou en toute combinaison de plusieurs telles couches, et notamment, de préférence, en une première couche The protective outer coating may consist of a single layer of ceramic or metal, or any combination of several such layers, and in particular, preferably, a first layer
métallique recouverte d'une seconde couche en céramique. metal covered with a second ceramic layer.
Avantageusement, le revêtement extérieur protecteur a été formé par projection à chaud de céramiques ou de métaux, sous forme de poudres, sur des substrats textiles naturels ou synthétiques, technique pour laquelle on dispose de plusieurs méthodes de réalisation. Bien que de très nombreux types de céramiques puissent être utilisés pour la protection et se prêtent à la projection à chaud, on obtient déjà de bons résultats avec une céramique AO1203 - TiOz relativement simple. Bien entendu il est envisageable d'utiliser tout autre type de ceramiques, par exemple obtenues à l'aide de mélanges d'oxydes, de nitrures ou de carbures Advantageously, the protective external coating has been formed by hot spraying of ceramics or metals, in the form of powders, onto natural or synthetic textile substrates, a technique for which several methods of production are available. Although many types of ceramics can be used for protection and lend themselves to hot spraying, good results are already obtained with a relatively simple AO1203 - TiOz ceramic. Of course, it is conceivable to use any other type of ceramic, for example obtained using mixtures of oxides, nitrides or carbides
métalliques, et notamment une céramique Zr O-CaO. metallic, and in particular a Zr O-CaO ceramic.
De nombreux metaux peuvent être mis en oeuvre pour constituer le revêtement extérieur protecteur, les alliages Ni-Cr et i'aluminium convenant particulièrement Many metals can be used to form the protective external coating, Ni-Cr alloys and aluminum being particularly suitable
bien.good.
L'épaisseur du revêtement peut être réglée en fonction des applications particulières auxquelles est destiné le produit, mais une épaisseur trop importante nuit à la souplesse du produit final. On utilisera en The thickness of the coating can be adjusted according to the particular applications for which the product is intended, but an excessively large thickness affects the flexibility of the final product. We will use in
géneral une épaisseur de 20 à 200 Fm. generally a thickness of 20 to 200 Fm.
Les revêtements par projection à chaud sont obtenus par ecrasement à grande vitesse de gouttelettes fondues sur un substrat. Dans le cas d'un substrat textile, l'adhérence du revêtement est obtenue par un accrochage mécanique. On peut également envisager un traitement préalable favorisant l'accrochage entre substrat et revêtement. On dispose essentiellement de trois méthodes de projection à chaud: a) celle utilisant un chalumeau oxyacétylénique, b) celle utilisant une projection plasma & la pression atmosphérique, c) celle utilisant une projection plasma sous atmosphère contrôléee et à basse pression Hot spray coatings are obtained by high-speed crushing of droplets melted on a substrate. In the case of a textile substrate, the adhesion of the coating is obtained by mechanical attachment. One can also consider a preliminary treatment favoring the attachment between substrate and coating. There are essentially three hot projection methods: a) that using an oxyacetylene torch, b) that using plasma projection at atmospheric pressure, c) that using plasma projection under controlled atmosphere and at low pressure
(5 kPa <P<100 kPa).(5 kPa <P <100 kPa).
Selon la methode a), on procede manuellement ou de According to method a), one proceeds manually or
façon robotisée.robotic way.
Selon les méthodes b) et c), on procède en ambiance protégée, au moyen de mouvements robotisés de la torche à plasma, à commande numérique, permettant d'obtenir des épaisseurs parfaitement uniformes. Dans ce cas, le procédé consiste a évaporer la poudre de céramique ou métallique, de granulometrie contrôlée, dans un plasma gazeux, et à projeter a grande vitesse les gouttelettes de condensation sur le substrat. En réglant les différents paramètres de la projection, et notamment les mouvements du robot, dans chaque cas, on dépose une According to methods b) and c), the process is carried out in a protected environment, by means of robotic movements of the plasma torch, with digital control, making it possible to obtain perfectly uniform thicknesses. In this case, the process consists in evaporating the ceramic or metallic powder, of controlled particle size, in a gaseous plasma, and in projecting the droplets of condensation at high speed onto the substrate. By adjusting the different parameters of the projection, and in particular the movements of the robot, in each case, a
couche d'épaisseur uniforme voulue. layer of uniform thickness desired.
Plusieurs couches de natures et d'épaisseurs différentes peuvent être superposées, dans le but Several layers of different natures and thicknesses can be superimposed, in order to
d'obtenir des résultats spécifiques. to get specific results.
Le substrat doit resister à des températures supérieures a 100'C sans alteérations de ses caractéristiques physico- chimiques A titre d'exemple, on a réalisé des gants de protection selon la technique b). Sur un substrat classique, on a dépose un revêtement de céramique Alamo - TiO2, un à une epaisseur de 100 um et l'autre à The substrate must withstand temperatures above 100 ° C. without alteration of its physicochemical characteristics. For example, protective gloves have been produced according to technique b). On a conventional substrate, an Alamo - TiO2 ceramic coating was deposited, one at a thickness of 100 μm and the other at
une épaisseur de 150 im.a thickness of 150 im.
Ces gants ont été essayes dans des conditions réelles de manipulation et l'on obtient les avantages suivants: These gloves have been tested under real handling conditions and the following advantages are obtained:
4 27102474 2710247
on constate une meilleure adhérence, et donc une meilleure préhension vis-à-vis des pièces à manipuler, même en presence de couches épaisses de produits lubrifiants, ainsi qu'une diminution importante de l'effort de manipulation, ce qui améliore nettement les there is better adhesion, and therefore better grip with respect to the parts to be handled, even in the presence of thick layers of lubricant products, as well as a significant reduction in the handling effort, which clearly improves the
conditions de travail et donc la productivité. working conditions and therefore productivity.
On constate qu'il est possible de manipuler dans de meilleures conditions des pièces de températures relativement élevées, et fortement abrasives, la résistance améliorée des gants dans ces conditions It can be seen that it is possible to handle, under better conditions, parts of relatively high and highly abrasive temperatures, the improved resistance of the gloves under these conditions.
augmentant considérablement leur durée d'usage. considerably increasing their useful life.
On constate enfin que même dans des circonstances difficiles, il v a moins de risques de coupures ou de détériorations mécaniques des gants revêtus de Finally, it can be seen that even in difficult circumstances, there is less risk of cuts or mechanical damage to gloves coated with
céramique.ceramic.
L'invention n'est bien entendu pas limitée aux seuls gants de protection, et peut s'appliquer & tout equipement de protection individuelle pour hautes temperatures, devant presenter en outre de bonnes The invention is of course not limited to protective gloves only, and can be applied to any personal protective equipment for high temperatures, which must also have good
résistances mécaniques.mechanical resistance.
Claims (5)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR9303481A BR9303481A (en) | 1993-08-03 | 1993-08-25 | Apparatus to facilitate the stirring of a "WOK" container to turn food over |
FR9311207A FR2710247B1 (en) | 1993-09-21 | 1993-09-21 | Personal protective equipment, including protective gloves. |
DE69424357T DE69424357T2 (en) | 1993-09-21 | 1994-09-20 | Individual protective equipment, especially protective gloves |
EP94402090A EP0643930B1 (en) | 1993-09-21 | 1994-09-20 | Individual protective equipment especially protective gloves |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9311207A FR2710247B1 (en) | 1993-09-21 | 1993-09-21 | Personal protective equipment, including protective gloves. |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2710247A1 true FR2710247A1 (en) | 1995-03-31 |
FR2710247B1 FR2710247B1 (en) | 1995-12-08 |
Family
ID=9451060
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR9311207A Expired - Fee Related FR2710247B1 (en) | 1993-08-03 | 1993-09-21 | Personal protective equipment, including protective gloves. |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0643930B1 (en) |
DE (1) | DE69424357T2 (en) |
FR (1) | FR2710247B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NL1005731C2 (en) * | 1997-04-04 | 1998-10-07 | Zeffex Plastics Bv | Lightweight and flexible non-metallic stab resistant material. |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4223064A (en) * | 1979-05-10 | 1980-09-16 | The United States Of America As Represented By The United States Department Of Energy | Alkali metal protective garment and composite material |
US4401707A (en) * | 1981-12-07 | 1983-08-30 | The United States Of America As Represented By The Secretary Of The Navy | Composite heat protective fabric |
EP0213756A2 (en) * | 1985-08-02 | 1987-03-11 | Drg (Uk) Limited | Protective clothing made from welded mutlilayer sheet material incorporating a barrier layer |
DE3737299A1 (en) * | 1986-11-06 | 1988-05-11 | Lederfabrik Hase Gmbh | High-temperature protective glove |
EP0390383A1 (en) * | 1989-03-31 | 1990-10-03 | Minnesota Mining And Manufacturing Company | Carbon-coated ceramic textiles |
WO1992021634A1 (en) * | 1991-06-03 | 1992-12-10 | Minnesota Mining And Manufacturing Company | Yttria-alumina fibers |
-
1993
- 1993-09-21 FR FR9311207A patent/FR2710247B1/en not_active Expired - Fee Related
-
1994
- 1994-09-20 EP EP94402090A patent/EP0643930B1/en not_active Expired - Lifetime
- 1994-09-20 DE DE69424357T patent/DE69424357T2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4223064A (en) * | 1979-05-10 | 1980-09-16 | The United States Of America As Represented By The United States Department Of Energy | Alkali metal protective garment and composite material |
US4401707A (en) * | 1981-12-07 | 1983-08-30 | The United States Of America As Represented By The Secretary Of The Navy | Composite heat protective fabric |
EP0213756A2 (en) * | 1985-08-02 | 1987-03-11 | Drg (Uk) Limited | Protective clothing made from welded mutlilayer sheet material incorporating a barrier layer |
DE3737299A1 (en) * | 1986-11-06 | 1988-05-11 | Lederfabrik Hase Gmbh | High-temperature protective glove |
EP0390383A1 (en) * | 1989-03-31 | 1990-10-03 | Minnesota Mining And Manufacturing Company | Carbon-coated ceramic textiles |
WO1992021634A1 (en) * | 1991-06-03 | 1992-12-10 | Minnesota Mining And Manufacturing Company | Yttria-alumina fibers |
Also Published As
Publication number | Publication date |
---|---|
EP0643930B1 (en) | 2000-05-10 |
DE69424357T2 (en) | 2001-02-08 |
FR2710247B1 (en) | 1995-12-08 |
EP0643930A1 (en) | 1995-03-22 |
DE69424357D1 (en) | 2000-06-15 |
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ST | Notification of lapse |