EP0233995A1 - Protective suit - Google Patents

Protective suit Download PDF

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Publication number
EP0233995A1
EP0233995A1 EP86114744A EP86114744A EP0233995A1 EP 0233995 A1 EP0233995 A1 EP 0233995A1 EP 86114744 A EP86114744 A EP 86114744A EP 86114744 A EP86114744 A EP 86114744A EP 0233995 A1 EP0233995 A1 EP 0233995A1
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EP
European Patent Office
Prior art keywords
protective suit
film
overcoat
membrane
suit according
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Granted
Application number
EP86114744A
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German (de)
French (fr)
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EP0233995B1 (en
Inventor
Herbert Berthold
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Herbert Berthold Fabrik fur Arbeiterschutzbekleidung
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Herbert Berthold Fabrik fur Arbeiterschutzbekleidung
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Priority to AT86114744T priority Critical patent/ATE55266T1/en
Publication of EP0233995A1 publication Critical patent/EP0233995A1/en
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    • 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
    • A41D13/12—Surgeons' or patients' gowns or dresses
    • A41D13/1236—Patients' garments
    • A41D13/1263—Suits
    • 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
    • A41D13/00—Professional, industrial or sporting protective garments, e.g. surgeons' gowns or garments protecting against blows or punches
    • A41D13/02—Overalls, e.g. bodysuits or bib overalls
    • 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
    • A41D31/10—Impermeable to liquids, e.g. waterproof; Liquid-repellent
    • A41D31/102—Waterproof and breathable
    • 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
    • A41D13/12—Surgeons' or patients' gowns or dresses
    • A41D13/1209—Surgeons' gowns or dresses
    • A41D13/1227—Surgeons' gowns or dresses with liquid-proof sleeves

Definitions

  • the invention relates to a wind and liquid-tight protective suit made of a composite material, consisting of an overcoat with neck and sleeve openings, which are provided with sleeves made of stretchable material, preferably rubber or the like, with a sleeve made of stretchable material also on the outer edge Material, preferably rubber or the like, is arranged, and a pair of pants made of the same material as the overcoat, the cuffs also made of stretchable material, preferably rubber or the like.
  • Protective suits of the aforementioned type are generally made of composite materials with a layered structure
  • the base material ie. H. the carrier fabric, mostly in the form of a so-called knitted fabric, is developed as a textile fabric which is produced by stitch formation from one or more thread systems on knitting machines
  • the top layer of the composite material usually consists of a film or membrane.
  • protective clothing made from such a layered material is not sufficiently breathable, it can only be worn for a short time. But even then, it usually develops an unpleasant feeling of cold, which reduces the load-bearing capacity, for example due to the inevitable formation of sweat, which, like the formation of possible heat build-up, can lead to reduced work performance or even to a temporary complete incapacity for work of the person concerned.
  • microporous PTFE films are relatively expensive and are therefore rarely used in protective suits that are mass-produced.
  • PVC polyvinyl chloride
  • polyamides are particularly suitable as materials in textile fabrics for the production of protective suits because, in addition to having a comparatively high density, they also have desirable breathability.
  • Polyamides are formed by polycondensation, e.g. B. of diamines with dicarboxylic acids, according to the scheme
  • the well-known 6-polyamide fiber (Perlon), which has 6 atoms in the chain between the NH groups, is formed by polycondensation of the ⁇ -caprolactam in the presence of a little water via the ⁇ -amino-caproic acid, which forms one with other cyclic monomers Polycondensate of the following chain structure reacts (P. Schlack, 1938):
  • a newer polyamide fiber of vegetable origin was developed in France under the name Rilsan.
  • the starting material is undecylenic acid, which is obtained from castor oil and converted into 11-amino-undecanoic acid, H2N- (CH2) 10-COOH.
  • H2N- (CH2) 10-COOH 11-amino-undecanoic acid
  • Their polycondensation provides a high quality polyamide fiber (11-polyamide) that is resistant to both alkalis and acids.
  • the known polyamide fiber 6,6-polyamide also called nylon-6,6, which, like 6-polyamide, is based on the polycondensation of aliphatic dicarboxylic acids with diamines is particularly suitable for producing the textile backing fabric for protective suits.
  • This is based on the AH salt, which consists of molar amounts of adipic acid, HOOC- (CH2) 4-COOH, and hexamethylenediamine, H2N- (CH2) 6-NH2, and is melted at 255 degrees Celsius.
  • the polyhexamethylene adipamide formed here has the following chain structure: -NH- (CH2) 6-NH-CO- (CH2) 4-CO-
  • these 6,6-polyamides can be spun directly from the melt, they are cheaper to produce than other synthetic fibers and are characterized by their particularly high tensile strength and elasticity.
  • the textile backing fabric made from them is water-repellent after rendering them hydrophobic and particularly resistant to aggressive media. Because of its microporous structure, the base fabric is permeable to water vapor and accordingly breathable, so that it is suitable for the production of wind and liquid-tight protective clothing which can be worn, for example, in clean rooms in the pharmaceutical, electronics and automotive industries.
  • the material is lint and silicone free, antistatic, flame retardant, decontaminable and autoclavable between 120 and 130 degrees Celsius.
  • Polyester foils or membranes play a very important role in the manufacture of wind and liquid-tight protective suits, the base material of which is produced by polycondensation of polyhydric alcohols and dicarboxylic acids or their esters.
  • dimethyl terephthalate forms a polyester fiber with ethylene glycol, which is known commercially under names such as Terylene, Trevira and Diolen.
  • the terylene fiber is characterized by great tensile strength and elasticity as well as by special resistance to strongly hydrolyzing agents.
  • the textile fabrics made from this polyester fiber are windproof and, after rendering them hydrophobic, also liquid-tight, but are still permeable to water vapor due to their micropores and are therefore breathable to the desired extent.
  • EP 0 111 360 is a bendable layer material for the production of watertight Garments or tents known as textile material, which is covered with a waterproof film or membrane material with a water vapor transmission rate of at least 1000 g / sqm per day.
  • the waterproof film material consists of a copolyether ester, which is made up of several, periodically occurring long and short chain ester units, where the long chain ester units can consist of polyethylene oxide glycol and the short chain ester units can consist of polybutylene terephthalate.
  • copolyether esters which are used in composite materials for the production of wind and liquid-tight protective suits are described in GB-PSs 682,866, 1,403,210 and 1,404,340. Copolyether esters are preferred here, of which the short chain units consist entirely or essentially entirely of polybutylene terephthalate units.
  • the partially made hydrophobic film or membrane materials mentioned in these publications are wind and liquid-tight, but still very breathable because their structure allows water vapor to pass through.
  • the invention is therefore based on the object of using the plastics described here as suitable as composite materials for the production of a wind and liquid-tight protective suit which is sufficiently permeable to water vapor and therefore breathable due to its chosen material combination.
  • the protective suit should also be resistant to aggressive media and should optimally meet other chemical and physical requirements.
  • a carrier fabric in the form of a knitted fabric made of known polyamide, the thread of the knitted fabric containing an antistatic core made of a suitable material, and a film or membrane made of known 100% polyester with a water vapor permeability of at least 1000 g / sqm per day.
  • the protective suit is not only wind and liquid-tight, but is also breathable to the required extent due to its sufficient water vapor permeability.
  • the protective suit can therefore be worn over a longer period of time (6 to 8 hours), since sweat formation is no longer possible even with heavy physical exertion due to the microporosity of the film or membrane of the protective suit.
  • the protective suit is free of fluff and silicone, partly flame-retardant, and can be easily detoxified and dusted. In addition, it is between 120 and 130 degrees Celsius autoclavable.
  • the protective suit is resistant to aggressive chemical media, washable up to 40 degrees Celsius and resistant to rubbing, kinking and pulling. It is mainly used in clean rooms, in medicine, in the pharmaceutical, electronics and automotive industries as well as in other branches of industry.
  • the flexible layer material 2 consists of a not shown Carrier fabric 20 (see FIGS. 4 and 6) in the form of a knitted fabric made of known polyamide, for example made of 6-, 6,6- or 11-polyamide, the thread of the knitted fabric containing an antistatic core made of a suitable material.
  • a film or membrane 21 see FIGS.
  • covering the carrier fabric (not shown) as the outer fabric consists of 100% polyester, for example from a known copolyether ester with periodic long and short chain ester units, which in turn consist of polyethylene oxide glycol or polybutylene terephthalate .
  • the film is wind and liquid-tight, but due to its water vapor permeability of at least 1000 g / m2 per day, it is breathable to the extent necessary and is particularly resistant to aggressive media.
  • the layered material made with this film provides a wind and liquid-tight overcoat or, as will be described later, a pair of pants that can be worn together as a protective suit over a longer period of time (6 to 8 hours) without causing welding deposits in the Inner part of the protective suit can come.
  • a protective suit made with this material can be made completely sterile in appropriate facilities, for example in an autoclave, between 120 and 130 degrees Celsius.
  • the film as the outer material or top layer of the material can also be washed off, is resistant to abrasion, kinking, and very stable supple and stretchy.
  • the protective suit is lint-free, antistatic, silicone-free and partly flame-retardant.
  • the overcoat 1 is provided with a neck sleeve 3 made of elastic material, preferably rubber or the like, the edge 3a of which is sewn against fraying.
  • the neck cuff 3 is attached to the neck opening 16 of the puller 1 by a seam 3c.
  • the neck cuff 3 is joined by seams.
  • Arm sleeves 4a and 4b made of elastic material, preferably rubber or the like, are attached to sleeve openings 4 by means of seams 4a2 and 4b2, which are also laterally connected by seams 4a3 and 4b3. Sewn edges 4a1 and 4b1 of the sleeve cuffs 4a and 4b prevent the elastic material from fraying.
  • the top of the puller 1 is formed by a collar cuff 5 made of elastic material, preferably rubber or the like, which is attached to the puller 1 by means of a seam 5b.
  • the collar 5 is held together laterally by a seam 5c.
  • the collar cuff 5 is secured against fraying by a sewn edge 5a.
  • FIG. 2 shows pants 6 made of the same flexible layer material as the overcoat 1.
  • a trouser cuff 7 made of elastic material, preferably rubber or the like, is attached to an upper part 6a of the trousers 6 by a seam 7a3.
  • the trouser cuff 7 is joined at the front and back by seams 7a2.
  • the trouser cuff 7 is protected against fraying by a sewn edge 7a1.
  • the upper part 6a of the pants 6 is held together tightly by a seam 9 and pants legs 12 by a seam 10 and 11.
  • the ends of the trouser legs 12 form trouser leg cuffs 12a and 12b, which in turn are attached to the trouser legs 12 in a windproof and liquid-tight manner by means of seams 12a1 and 12b1.
  • the trouser leg cuffs 12a and 12b are held together laterally by seams 12a2 and 12b2 and are sewn at their edges 12a3 and 12b3 to prevent fraying.
  • the ones already described for topcoat 1 Advantages apply to the same extent for the trousers 6, since the layer material identified here with the reference number 8 is identical to the layer material 2 of the cover 1.
  • the layer material and thus the protective suit can also be made completely sterile and also does not allow any foreign particles, however small.
  • the protective suit is therefore particularly suitable for use in clean rooms, in medicine, in the pharmaceutical, electronics and automotive industries, and in other sectors where it is particularly important for maximum cleanliness, freedom from germs and particles, and for longer wearing times without sweating and Heat build-up arrives. With this protective suit, the performance of the people concerned is increased significantly. Compared to a one-piece protective suit to be described below, the two-piece protective suit has the advantage that not all of the suit but only a part of it has to be replaced in the event of damage.
  • FIG. 3 A special embodiment of the invention is shown in FIG. 3 with a one-piece protective suit 13 which meets the highest demands with regard to freedom from germs and particles.
  • the seams 13a and 18 are also additionally welded with tapes 22 made of the film or membrane 21 (shown in dashed lines) in order to make a possible one at these points as well Exclude liquid penetration.
  • a neck collar 16a made of elastic material, preferably rubber or the like is fastened to a neck opening 16, as in the case of the overcoat 1, by means of a seam 16a1, the neck collar 16a being joined tightly by a seam 16b.
  • Sleeve sleeves 15a and 14b made of elastic material, preferably rubber or the like, are attached to sleeve openings 14 by seams 14a2 and 14b2.
  • the sleeve cuffs 14a and 14b are also held together laterally by seams 14a3 and 14b3 and are ultimately protected against fraying by sewn edges 14a1 and 14b1.
  • a concealed zip fastener 15 attached in the middle of the protective suit enables the one-piece protective suit 13 to be opened and closed quickly.
  • the reference numeral 17 in turn identifies the same layered material as the overcoat 1 and the pants 2.
  • the one-piece protective suit 13 is held together by seams 18 on the side and in the crotch.
  • Pants leg cuffs 19a and 19b made of elastic material, preferably rubber or the like, are attached to pants leg parts 19 by seams 19a1 and 19b1.
  • the trouser leg cuffs 19a and 19b are also held together tightly here by seams 19a2 and 19b2. At the lower end, the trouser leg cuffs 19a and 19b are protected against fraying by sewn edges 19a3 and 19b3. For all seams of protective suits 1, 6 and 13, those with different stitch types can also be provided.
  • FIG. 4 shows schematically the grid-like structure of the carrier fabric 20, in FIG. 5 the wind and liquid-tight but highly breathable film or membrane 21 is shown.
  • FIG. 6 shows a special embodiment of the layer material for the protective suit, the film 21 being arranged between two layers of the base fabric 20.

Abstract

1. Protective suit being tight against liquids and winds, made of laminated sheet material, consisting of an overcoat provided with neck and arm openings equipped with collars manufactured of elastic material, preferably of rubber, whereby there is also arranged a collar made of elastic material on the rim of said overcoat, and of a pair of trousers consisting of the same material as said overcoat, the collars of which are also made of elastic material, preferably of rubber, whereby a partial layer, forming the base material of said laminated sheet material, consists of a carrier fabric (20) in the form of a woven construction consisting of polyamid fibers, and another partial layer of said laminated sheet material is made of another synthetic material and is coated onto said carrier fabric (20) in the form of a film (21), characterized in that said fibers of said woven polyamid construction contain an antistatic core made of a suitable material, said film (21) consists of polyester of 100 per cent, having a water vapour permeability of at least 1000 g/sqm per day, stiched seams (1a; 3b; 3c; 4a2; 4a3; 4b2; 4b3; 5b; 5c; 7a2; 7a3; 9; 10; 11; 12a1; 12a2; 12b1; 12b2) of said protective suit (1, 6) including said collars (4; 4a; 4b; 5; 7; 12a; 12b) are weld-overlaid by ribbons (22) made of said film (21) and that said waistband collar (5) of said overcoat (1) and said trouser collar (7) overlap each other.

Description

Die Erfindung betrifft einen wind- und flüssigkeits­dichten, aus einem Compositwerkstoff gefertigten Schutzanzug, bestehend aus einem Überzieher mit Hals- und Ärmelöffnungen, die mit Manschetten aus dehnbarem Material, vorzugsweise Gummi o. dgl., versehen sind, wobei am Überzieherrand ebenfalls eine Manschette aus dehnbarem Material, vorzugsweise Gummi o. dgl., angeordnet ist, und aus einer Hose aus gleichem Material wie der Überzieher, deren Manschetten ebenfalls aus dehnbarem Material, vorzugsweise Gummi o. dgl., bestehen.The invention relates to a wind and liquid-tight protective suit made of a composite material, consisting of an overcoat with neck and sleeve openings, which are provided with sleeves made of stretchable material, preferably rubber or the like, with a sleeve made of stretchable material also on the outer edge Material, preferably rubber or the like, is arranged, and a pair of pants made of the same material as the overcoat, the cuffs also made of stretchable material, preferably rubber or the like.

Schutzanzüge der zuvor genannten Art werden in der Regel aus schichtartig aufgebauten Compositwerkstoffen gefertigt, wobei der Grundstoff, d. h. das Trägergewebe, meistens in Form eines sogenannten Gewirkes als textiles Flächengebilde entwickelt ist, welches durch Maschenbildung aus einem oder mehreren Fadensystemen auf Wirkmaschinen hergestellt wird, und die Oberschicht des Compositwerkstoffes meistens aus einer Folie oder Membrane besteht.Protective suits of the aforementioned type are generally made of composite materials with a layered structure, the base material, ie. H. the carrier fabric, mostly in the form of a so-called knitted fabric, is developed as a textile fabric which is produced by stitch formation from one or more thread systems on knitting machines, and the top layer of the composite material usually consists of a film or membrane.

Compositwerkstoffe der vorgenannten Art zur Herstellung von Schutzanzügen sind bereits bekannt. So sind in der GB-PS 2,024,100 biegbare Schichtwerkstoffe zur Herstellung von wasserdichter Regenbekleidung beschrieben, die eine wasserabweisende, mikroporöse Schicht, beispielsweise aus expandierendem Polytetrafluoräthylen (PTFE), und eine hydrophile Schicht, z. B. aus Polyätherpolyurethan, aufweisen, welche zwar Wasserdampf bis zu einer bestimmten Menge durchläßt, aber den Durchgang von die Oberflächenspannung herabsetzenden Mitteln verhindert, die z. B. im Atmungsmedium enthalten sind. Für den Einsatz in Schutzanzügen kann zwar der textile Schichtwerkstoff stärker hydrophob gemacht werden, ist aber dann nicht mehr geschmeidig genug, weil die Schicht des hydrophilen Materials zu dick ist. Im übrigen führt eine dickere hydrophile Schicht zu stärkerer Wasserabsorption und daher zu starkem Anschwellen. Dünnere Schichten sind jedoch weniger geeignet, weil der biegbare Schichtwerkstoff dann leichter beschädigt werden kann.Composite materials of the aforementioned type for the production of protective suits are already known. So in GB-PS 2,024,100 bendable layer materials for the production of waterproof rainwear are described, which have a water-repellent, microporous layer, for example made of expanding polytetrafluoroethylene (PTFE), and a hydrophilic layer, for. B. from polyether polyurethane, which, although water vapor allows up to a certain amount, but prevents the passage of the surface tension reducing agents, the z. B. are contained in the breathing medium. For the When used in protective suits, the layered textile material can be made more hydrophobic, but is then no longer pliable enough because the layer of the hydrophilic material is too thick. In addition, a thicker hydrophilic layer leads to greater water absorption and therefore swelling. However, thinner layers are less suitable because the bendable layer material can then be damaged more easily.

Da eine aus einem derartigen Schichtwerkstoff gefertigte Schutzkleidung nicht ausreichend atmungsaktiv ist, kann sie nur für kurze Zeit getragen werden. Aber auch dann entwickelt sich meistens in dieser ein die Tragfähigkeit herabsetzendes, unangenehmes Kältegefühl, beispielsweise durch nicht eliminierbare Schweißbildung, was, wie auch die Bildung von möglichen Hitzestaus, zu einer verminderten Arbeitsleistung oder sogar zu einer vorübergehenden völligen Arbeitsunfähigkeit der betreffenden Person führen kann. Hinzu kommt, daß mikroporöse PTFE-Folien relativ teuer sind und deshalb in derartigen, massenweise hergestellten Schutzanzügen kaum eine Verwendung finden.Since protective clothing made from such a layered material is not sufficiently breathable, it can only be worn for a short time. But even then, it usually develops an unpleasant feeling of cold, which reduces the load-bearing capacity, for example due to the inevitable formation of sweat, which, like the formation of possible heat build-up, can lead to reduced work performance or even to a temporary complete incapacity for work of the person concerned. In addition, microporous PTFE films are relatively expensive and are therefore rarely used in protective suits that are mass-produced.

Dem Ansetzen von Schweiß- und sonstiger Feuchtigkeit am Innenteil eines solchen Schutzanzuges wurde nun dadurch begegnet, indem man das textile Flächengewirke am Innenteil des Schutzanzuges mit einem Imprägniermittel versah und damit das Gewirke wasserabweisend machte. Dieser Maßnahme steht aber der Nachteil gegenüber, daß die Imprägnation nicht lange hält und daher oft eine Nachimprägnation am fertigen Textilteil vorgenommen werden muß, was aber schwieriger als am ursprünglichen Werkstoff durchführbar und damit kostenaufwendiger ist. Hinzu kommt noch, daß bei längerem Einwirken des Imprägniermittels auf das textile Fadengewirke der Schutzanzug nicht mehr dicht bleibt und daher Feuchtigkeit aufnimmt, was ein unangenehmes Tragegefühl zur Folge hat und den Schutzanzug entsprechend schwerer und steifer macht.The build-up of sweat and other moisture on the inside of such a protective suit was now countered by providing the textile knitted fabric on the inside of the protective suit with an impregnating agent and thus making the knitted fabric water-repellent. However, this measure has the disadvantage that the impregnation does not last long and therefore often a post-impregnation must be carried out on the finished textile part, but this is more difficult than the original material and is therefore more expensive. Added to this is the fact that the impregnating agent acts on the textile for a long time The protective suit no longer remains tight and therefore absorbs moisture, which results in uncomfortable wearing comfort and makes the protective suit correspondingly heavier and stiffer.

Gleiche negative Erfahrungen hat man mit Polyvinylchlorid (PVC) gemacht, das aus Polymerketten von Vinylchlorid­molekülen aufgebaut ist und durch Nachchlorierung zur Herstellung von Schutzbekleidung Verwendung findet. Da ein mit PVC hergestellter Schichtwerkstoff einerseits zwar eine relativ hohe Dichte aufweist, kommt er andererseits wegen seiner schwachen Atmungsaktivität für die Herstellung von Schutzbekleidung nicht in Frage.The same negative experiences have been made with polyvinyl chloride (PVC), which is made up of polymer chains of vinyl chloride molecules and is used for the production of protective clothing by post-chlorination. Since a layered material made with PVC has a relatively high density on the one hand, it is out of the question because of its weak breathability for the production of protective clothing.

Demgegenüber eignen sich Polyamide als Werkstoffe in textilen Flächengewirken zur Herstellung von Schutzanzügen besonders gut, weil sie neben einer vergleichbar hohen Dichte auch eine wünschenswerte Atmungsaktivität aufweisen. Polyamide entstehen durch Polykondensation, z. B. von Diaminen mit Dicarbonsäuren, nach dem Schema

Figure imgb0001
In contrast, polyamides are particularly suitable as materials in textile fabrics for the production of protective suits because, in addition to having a comparatively high density, they also have desirable breathability. Polyamides are formed by polycondensation, e.g. B. of diamines with dicarboxylic acids, according to the scheme
Figure imgb0001

Die bekannte 6-Polyamidfaser (Perlon), die in der Kette zwischen den NH-Gruppen 6-Atome aufweist, entsteht durch Polykondensation des ε-Caprolactams in Gegenwart von wenig Wasser über die ε-Amino-capronsäure, die mit weiteren cyclischen Monomeren zu einem Polykondensat folgender Kettenstruktur reagiert (P. Schlack, 1938):

Figure imgb0002
The well-known 6-polyamide fiber (Perlon), which has 6 atoms in the chain between the NH groups, is formed by polycondensation of the ε-caprolactam in the presence of a little water via the ε-amino-caproic acid, which forms one with other cyclic monomers Polycondensate of the following chain structure reacts (P. Schlack, 1938):
Figure imgb0002

Diese Faser ist zwar gegen Alkalien relativ beständig, aber extrem säureempfindlich und kann daher nur dementsprechend zur Anwendung kommen.Although this fiber is relatively resistant to alkalis, it is extremely sensitive to acids and can therefore only be used accordingly.

Eine neuere Polyamidfaser pflanzlichen Ursprungs wurde in Frankreich unter dem Namen Rilsan entwickelt. Als Ausgangsstoff dient die Undecylensäure, die aus Ricinusöl gewonnen und in die 11-Amino-undecansäure, H₂N-(CH₂)₁₀-COOH, übergeführt wird. Ihre Polykondensation liefert eine Polyamidfaser (11-Polyamid) von hoher Qualität, die sowohl gegenüber Alkalien als auch Säuren beständig ist.A newer polyamide fiber of vegetable origin was developed in France under the name Rilsan. The starting material is undecylenic acid, which is obtained from castor oil and converted into 11-amino-undecanoic acid, H₂N- (CH₂) ₁₀-COOH. Their polycondensation provides a high quality polyamide fiber (11-polyamide) that is resistant to both alkalis and acids.

Zur Herstellung eines textilen Trägergewebes für Schutzanzüge eignet sich für den beanspruchten besonderen Verwendungszweck insbesondere die bekannte Polyamidfaser 6,6-Polyamid, auch Nylon-6,6 genannt, die ebenfalls wie 6-Polyamid auf der Polykondensation von aliphatischen Dicarbonsäuren mit Diaminen beruht. Man geht hierbei vom AH-Salz aus, das aus molaren Mengen Adipinsäure, HOOC-(CH₂)₄-COOH, und Hexamethylendiamin, H₂N-(CH₂)₆-NH₂, besteht und bei 255 Grad Celsius verschmolzen wird. Das hierbei gebildete Polyhexamethylenadipamid weist folgende Kettenstruktur auf:
-NH-(CH₂)₆-NH-CO-(CH₂)₄-CO-
The known polyamide fiber 6,6-polyamide, also called nylon-6,6, which, like 6-polyamide, is based on the polycondensation of aliphatic dicarboxylic acids with diamines is particularly suitable for producing the textile backing fabric for protective suits. This is based on the AH salt, which consists of molar amounts of adipic acid, HOOC- (CH₂) ₄-COOH, and hexamethylenediamine, H₂N- (CH₂) ₆-NH₂, and is melted at 255 degrees Celsius. The polyhexamethylene adipamide formed here has the following chain structure:
-NH- (CH₂) ₆-NH-CO- (CH₂) ₄-CO-

Da diese 6,6-Polyamide direkt aus der Schmelze verspinnbar sind, sind sie billiger als andere Kunstfaserstoffe herstellbar und zeichnen sich durch besonders hohe Reißfestigkeit und Elastizität aus. Das aus ihnen gefertigte textile Trägergewebe ist nach dem Hydrophobmachen wasserabweisend und gegenüber aggressiven Medien besonders beständig. Das Trägergewebe ist wegen seiner mikroporösen Struktur wasserdampfdurchlässig und entsprechend atmungsaktiv, so daß es zur Herstellung von wind- und flüssigkeitsdichter Schutzbekleidung geeignet ist, die beispielsweise in Reinräumen der Pharma-, Elektronik- und Automobilindustrie getragen werden kann. Das Material ist flusen- und siliconfrei, antistatisch, flammhemmend, dekontaminier- und zwischen 120 und 130 Grad Celsius autoklavierbar.Since these 6,6-polyamides can be spun directly from the melt, they are cheaper to produce than other synthetic fibers and are characterized by their particularly high tensile strength and elasticity. The textile backing fabric made from them is water-repellent after rendering them hydrophobic and particularly resistant to aggressive media. Because of its microporous structure, the base fabric is permeable to water vapor and accordingly breathable, so that it is suitable for the production of wind and liquid-tight protective clothing which can be worn, for example, in clean rooms in the pharmaceutical, electronics and automotive industries. The material is lint and silicone free, antistatic, flame retardant, decontaminable and autoclavable between 120 and 130 degrees Celsius.

Eine sehr wichtige Rolle für die Herstellung von wind- ­und flüssigkeitsdichten Schutzanzügen spielen Polyesterfolien oder -membrane, deren Grundstoff durch Polykondensation von mehrwertigen Alkoholen und Dicarbonsäuren bzw. ihren Estern entsteht. So bildet Terephtalsäuredimethylester mit Äthylenglykol eine Polyesterfaser, die im Handel unter Namen wie Terylen, Trevira und Diolen bekannt ist. Die Terylenfaser zeichnet sich durch große Reißfestigkeit und Elastizität sowie durch besondere Widerstandsfähigkeit gegen stark hydrolisierend wirkende Agentien aus. Die aus dieser Polyesterfaser hergestellten Textilgewebe sind winddicht und nach Hydrophobmachen auch flüssigkeitsdicht, sind aber wegen ihrer Mikroporen noch wasserdampfdurchlässig und damit in erwünschtem Maße atmungsaktiv.Polyester foils or membranes play a very important role in the manufacture of wind and liquid-tight protective suits, the base material of which is produced by polycondensation of polyhydric alcohols and dicarboxylic acids or their esters. For example, dimethyl terephthalate forms a polyester fiber with ethylene glycol, which is known commercially under names such as Terylene, Trevira and Diolen. The terylene fiber is characterized by great tensile strength and elasticity as well as by special resistance to strongly hydrolyzing agents. The textile fabrics made from this polyester fiber are windproof and, after rendering them hydrophobic, also liquid-tight, but are still permeable to water vapor due to their micropores and are therefore breathable to the desired extent.

Des weiteren ist aus der EP o 111 360 ein biegbarer Schichtwerkstoff zur Herstellung von wasserdichten Bekleidungsstücken oder Zelten als Textilmaterial bekannt, das mit einem wasserdichten Folien- oder Membranmaterial mit einer Wasserdampfübertragungs-­Geschwindigkeit von mindestens 1000 g/qm pro Tag überzogen ist. Das wasserdichte Folienmaterial besteht aus einem Copolyätherester, welcher sich aus mehreren, periodisch auftretenden Lang- und Kurzkettenester-­Einheiten aufbaut, wobei die Langkettenestereinheiten aus Polyäthylenoxidglykol und die Kurzkettenester-­Einheiten aus Polybutylenterephthalat bestehen können.Furthermore, EP 0 111 360 is a bendable layer material for the production of watertight Garments or tents known as textile material, which is covered with a waterproof film or membrane material with a water vapor transmission rate of at least 1000 g / sqm per day. The waterproof film material consists of a copolyether ester, which is made up of several, periodically occurring long and short chain ester units, where the long chain ester units can consist of polyethylene oxide glycol and the short chain ester units can consist of polybutylene terephthalate.

Weitere Copolyätherester, die in Compositwerkstoffen zur Anfertigung von wind- und flüssigkeitsdichten Schutzanzügen Verwendung finden, sind in den GB-PS'en 682,866, 1,403,210 und 1,404,340 beschrieben. Bevorzugt werden hier Copolyätherester, von denen die Kurzketteneinheiten ganz oder im wesentlichen ganz aus Polybutylen-Terephthalateinheiten bestehen.Further copolyether esters which are used in composite materials for the production of wind and liquid-tight protective suits are described in GB-PSs 682,866, 1,403,210 and 1,404,340. Copolyether esters are preferred here, of which the short chain units consist entirely or essentially entirely of polybutylene terephthalate units.

Die in diesen Druckschriften angeführten, zum Teil hydrophobgemachten Folien- oder Membranwerkstoffe sind wind- und flüssigkeitsdicht, aber trotzdem sehr atmungsaktiv, weil sie aufgrund ihrer Struktur Wasserdampf durchlassen. Das Ausmaß der Wasserdampf­durchlässigkeit der Copolyätheresterfolien wie auch in anderen Folien hängt natürlich nicht nur von der Zusammensetzung dieser Folien ab, sondern auch von ihrer Folienstärke. Bei irgendeiner gewählten Folienstärke sollte die Geschwindigkeit der Wasserdampf­durchlässigkeit stets mindestens 1000 g/qm sein. Es ist festgestellt worden, daß sehr günstige Ergebnisse mit einer Polymerfolie in einer Stärke von 5 bis 35 Mym erhalten werden. Optimale Ergebnisse ergeben sich in der Regel dann, wenn die Stärke der Polymerfolie im Bereich von 10 bis 25 Mym liegt.The partially made hydrophobic film or membrane materials mentioned in these publications are wind and liquid-tight, but still very breathable because their structure allows water vapor to pass through. The extent of the water vapor permeability of the copolyether ester films, as in other films, naturally depends not only on the composition of these films, but also on their film thickness. With any chosen film thickness, the rate of water vapor permeability should always be at least 1000 g / m2. It has been found that very favorable results are obtained with a polymer film in a thickness of 5 to 35 microns. Optimal results are usually obtained when the thickness of the polymer film is in the range of 10 to 25 µm.

Der Erfindung liegt daher die Aufgabe zugrunde, die hier als geeignet beschriebenen Kunststoffe als Compositwerkstoffe zur Anfertigung eines wind- und flüssigkeitsdichten Schutzanzuges zu verwenden, der aufgrund seiner gewählten Werkstoffkombination ausreichend wasserdampfdurchlässig und damit atmungsaktiv ist. Der Schutzanzug soll ferner gegenüber aggressiven Medien beständig sein und sonstigen chemischen wie physikalischen Anforderungen in optimaler Weise genügen.The invention is therefore based on the object of using the plastics described here as suitable as composite materials for the production of a wind and liquid-tight protective suit which is sufficiently permeable to water vapor and therefore breathable due to its chosen material combination. The protective suit should also be resistant to aggressive media and should optimally meet other chemical and physical requirements.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß ein Trägergewebe in Form eines Gewirkes aus bekanntem Polyamid, wobei der Faden des Gewirkes eine antistatische Seele aus geeignetem Material enthält, und durch eine Folie oder Membrane aus bekanntem 100 %igem Polyester mit einer Wasserdampfdurchlässigkeit von mindestens 1000 g/qm pro Tag.This object is achieved in that a carrier fabric in the form of a knitted fabric made of known polyamide, the thread of the knitted fabric containing an antistatic core made of a suitable material, and a film or membrane made of known 100% polyester with a water vapor permeability of at least 1000 g / sqm per day.

Weitere Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen 2 bis 8.Further refinements of the invention result from subclaims 2 to 8.

Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, daß der Schutzanzug nicht nur wind­und flüssigkeitsdicht, sondern auch aufgrund seiner ausreichenden Wasserdampfdurchlässigkeit in erforderlichem Maße atmungsaktiv ist. Der Schutzanzug kann daher über einen längeren Zeitraum (6 bis 8 Stunden) getragen werden, da selbst bei stärkerer körperlicher Belastung eine Schweißbildung wegen der Mikroporosität der Folie oder Membrane des Schutzanzuges nicht mehr möglich ist. Der Schutzanzug ist dank seiner besonderen Materialzusammensetzung flusen- und siliconfrei, zum Teil flammhemmend, kann leicht entgiftet und entstaubt werden. Darüber hinaus ist er zwischen 120 und 130 Grad Celsius autoklavierbar. Der Schutzanzug ist gegenüber aggressiven chemischen Medien beständig, waschbar bis 40 Grad Celsius und scheuer-, knick- und zugstabil. Er findet bevorzugt in Reinräumen, in der Medizin, in der Pharma-, Elektronik- und Automobilindustrie sowie in anderen Branchen der Industrie Verwendung.The advantages achieved by the invention are, in particular, that the protective suit is not only wind and liquid-tight, but is also breathable to the required extent due to its sufficient water vapor permeability. The protective suit can therefore be worn over a longer period of time (6 to 8 hours), since sweat formation is no longer possible even with heavy physical exertion due to the microporosity of the film or membrane of the protective suit. Thanks to its special material composition, the protective suit is free of fluff and silicone, partly flame-retardant, and can be easily detoxified and dusted. In addition, it is between 120 and 130 degrees Celsius autoclavable. The protective suit is resistant to aggressive chemical media, washable up to 40 degrees Celsius and resistant to rubbing, kinking and pulling. It is mainly used in clean rooms, in medicine, in the pharmaceutical, electronics and automotive industries as well as in other branches of industry.

Ausführungsbeispiele der Erfindung sind in den Zeichnungen dargestellt und werden im folgenden näher beschrieben. Es zeigt:

  • Fig. 1 - eine schematische Ansicht des Überziehers des erfindungsgemäßen Schutzanzuges,
  • Fig. 2 - eine schematische Ansicht der Hose des Schutzanzuges nach der Erfindung,
  • Fig. 3 - eine schematische Ansicht über eine Ausführungsform des einteiligen Schutzanzuges nach der Erfindung,
  • Fig. 4 - eine rasterförmige Ansicht des Trägergewebes aus Polyamid,
  • Fig. 5 - eine Folie oder Membrane aus Polyester,
  • Fig. 6 - eine weitere Ausführung über den im Schutzanzug verwendeten Schichtwerkstoff in auseinandergezogener Darstellung.
Embodiments of the invention are shown in the drawings and are described in more detail below. It shows:
  • 1 - a schematic view of the pullover of the protective suit according to the invention,
  • 2 - a schematic view of the pants of the protective suit according to the invention,
  • 3 - a schematic view of an embodiment of the one-piece protective suit according to the invention,
  • 4 - a raster-shaped view of the carrier fabric made of polyamide,
  • 5 - a film or membrane made of polyester,
  • Fig. 6 - another embodiment of the layer material used in the protective suit in an exploded view.

Fig. 1 zeigt einen aus einem flexiblen Schichtwerkstoff 2 gefertigten und mittels Nähten 1a zusammengehaltenen Überzieher 1 des erfindungsgemäßen wind- und flüssigkeitsdichten Schutzänzüges. Der flexible Schichtwerkstoff 2 besteht aus einem nicht gezeigten Trägergewebe 20 (siehe Fig. 4 und 6) in Form eines Gewirkes aus bekanntem Polyamid, beispielsweise aus 6-, 6,6- oder 11-Polyamid, wobei der Faden des Gewirkes eine antistatische Seele aus geeignetem Material enthält. Eine das Trägergewebe abdeckende, nicht gezeigte, Folie oder Membrane 21 (siehe Fig. 5 und 6) als Oberstoff besteht aus 100 %igem Polyester, beispielsweise aus einem bekannten Copolyätherester mit periodisch auftretenden Lang- und Kurzkettenestereinheiten, die wiederum aus Polyäthylenoxidglykol bzw. Polybutylenterephthalat bestehen. Die Folie ist wind- und flüssigkeitsdicht, aber wegen ihrer Wasserdampfdurchlässigkeit von mindestens 1000 g/qm pro Tag in erforderlichem Maße atmungsaktiv und insbesondere gegenüber aggressiven Medien beständig. Der mit dieser Folie hergestellte Schichtwerkstoff liefert einen wind- und flüssigkeitsdichten Überzieher bzw., wie noch zu beschreiben ist, eine Hose, die zusammen als Schutzanzug über einen längeren Zeitraum (6 bis 8 Stunden) getragen werden kann, ohne daß es dabei zu Schweißansätzen im Innenteil des Schutzanzuges kommen kann. Ein mit diesem Werkstoff hergestellter Schutzanzug läßt sich in entsprechenden Einrichtungen, beispiels­weise in einem Autoklaven, zwischen 120 und 130 Grad Celsius völlig steril machen.Die Folie als Oberstoff oder Oberschicht des Werkstoffes läßt sich auch abwaschen, ist scheuer- und knick- sowie zugstabil und sehr geschmeidig und dehnfähig. Der Schutzanzug ist flusenfrei, antistatisch, siliconfrei und zum Teil flammhemmend.1 shows a cover 1 of the wind- and liquid-tight protective suit according to the invention, made of a flexible layer material 2 and held together by means of seams 1a. The flexible layer material 2 consists of a not shown Carrier fabric 20 (see FIGS. 4 and 6) in the form of a knitted fabric made of known polyamide, for example made of 6-, 6,6- or 11-polyamide, the thread of the knitted fabric containing an antistatic core made of a suitable material. A film or membrane 21 (see FIGS. 5 and 6) covering the carrier fabric (not shown) as the outer fabric consists of 100% polyester, for example from a known copolyether ester with periodic long and short chain ester units, which in turn consist of polyethylene oxide glycol or polybutylene terephthalate . The film is wind and liquid-tight, but due to its water vapor permeability of at least 1000 g / m² per day, it is breathable to the extent necessary and is particularly resistant to aggressive media. The layered material made with this film provides a wind and liquid-tight overcoat or, as will be described later, a pair of pants that can be worn together as a protective suit over a longer period of time (6 to 8 hours) without causing welding deposits in the Inner part of the protective suit can come. A protective suit made with this material can be made completely sterile in appropriate facilities, for example in an autoclave, between 120 and 130 degrees Celsius. The film as the outer material or top layer of the material can also be washed off, is resistant to abrasion, kinking, and very stable supple and stretchy. The protective suit is lint-free, antistatic, silicone-free and partly flame-retardant.

Der Überzieher 1 ist mit einer Halsmanschette 3 aus elastischem Material, vorzugsweise Gummi o. dgl., versehen, deren Rand 3a gegen Ausfransen vernäht ist.The overcoat 1 is provided with a neck sleeve 3 made of elastic material, preferably rubber or the like, the edge 3a of which is sewn against fraying.

Die Halsmanschette 3 ist an der Halsöffnung 16 des Überziehers 1 durch eine Naht 3c befestigt. Die Halsmanschette 3 ist durch Nähte zusammengefügt. An Ärmelöffnungen 4 sind Ärmelmanschetten 4a und 4b aus elastischem Material, vorzugsweise Gummi o. dgl., mittels Nähten 4a2 und 4b2 angebracht, die seitlich ebenfalls durch Nähte 4a3 und 4b3 verbunden sind. Vernähte Ränder 4a1 und 4b1 der Ärmelmanschetten 4a und 4b verhindern ein Ausfransen des elastischen Materials. Den Abschluß des Überziehers 1 bildet eine Bundmanschette 5 aus elastischem Material, vorzugsweise Gummi o. dgl., die am Überzieher 1 mittels einer Naht 5b angebracht ist. Seitlich wird die Bundmanschette 5 durch eine Naht 5c zusammengehal­ten. Die Bundmanschette 5 ist durch einen vernähten Rand 5a gegen Ausfransen gesichert.The neck cuff 3 is attached to the neck opening 16 of the puller 1 by a seam 3c. The neck cuff 3 is joined by seams. Arm sleeves 4a and 4b made of elastic material, preferably rubber or the like, are attached to sleeve openings 4 by means of seams 4a2 and 4b2, which are also laterally connected by seams 4a3 and 4b3. Sewn edges 4a1 and 4b1 of the sleeve cuffs 4a and 4b prevent the elastic material from fraying. The top of the puller 1 is formed by a collar cuff 5 made of elastic material, preferably rubber or the like, which is attached to the puller 1 by means of a seam 5b. The collar 5 is held together laterally by a seam 5c. The collar cuff 5 is secured against fraying by a sewn edge 5a.

In Figur 2 ist eine aus gleichem flexiblen Schicht­werkstoff wie der Überzieher 1 gefertigte Hose 6 gezeigt. Eine Hosenmanschette 7 aus elastischem Material, vorzugsweise Gummi o. dgl., ist einem Oberteil 6a der Hose 6 durch eine Naht 7a3 angesetzt. Die Hosenmanschette 7 ist vorn und hinten durch Nähte 7a2 zusammengefügt. Gegen Ausfransen ist die Hosenmanschette 7 durch einen vernähten Rand 7a1 geschützt. Das Oberteil 6a der Hose 6 ist durch eine Naht 9 und Hosenbeine 12 durch eine Naht 10 und 11 dicht zusammengehalten. Den Abschluß der Hosenbeine 12 bilden Hosenbeinmanschetten 12a und 12b, die wiederum durch Nähte 12a1 und 12b1 an den Hosenbeinen 12 wind- und flüssigkeitsdicht befestigt sind. Seitlich zusammengehalten werden die Hosenbein­manschetten 12a und 12b durch Nähte 12a2 und 12b2 und sind an ihren Rändern 12a3 und 12b3 gegen Ausfransen vernäht. Die bereits beim Überzieher 1 beschriebenen Vorteile gelten in gleichem Maße auch für die Hose 6, da der hier mit dem Bezugszeichen 8 gekennzeichnete Schichtwerkstoff identisch mit dem Schichtwerkstoff 2 des Überziehers 1 ist.FIG. 2 shows pants 6 made of the same flexible layer material as the overcoat 1. A trouser cuff 7 made of elastic material, preferably rubber or the like, is attached to an upper part 6a of the trousers 6 by a seam 7a3. The trouser cuff 7 is joined at the front and back by seams 7a2. The trouser cuff 7 is protected against fraying by a sewn edge 7a1. The upper part 6a of the pants 6 is held together tightly by a seam 9 and pants legs 12 by a seam 10 and 11. The ends of the trouser legs 12 form trouser leg cuffs 12a and 12b, which in turn are attached to the trouser legs 12 in a windproof and liquid-tight manner by means of seams 12a1 and 12b1. The trouser leg cuffs 12a and 12b are held together laterally by seams 12a2 and 12b2 and are sewn at their edges 12a3 and 12b3 to prevent fraying. The ones already described for topcoat 1 Advantages apply to the same extent for the trousers 6, since the layer material identified here with the reference number 8 is identical to the layer material 2 of the cover 1.

Sämtliche Nähte, sowohl am Überzieher 1 als auch an der zugehörigen Hose 6, sind mit Bändern 22 aus der Folie oder Membrane 21 überschweißt und so sicher abgedichtet. Die Bänder 22 sind in den Zeichnungen gestrichelt dargestellt.All seams, both on the overcoat 1 and on the associated pants 6, are overwelded with tapes 22 made of the film or membrane 21 and thus securely sealed. The bands 22 are shown in dashed lines in the drawings.

Hinzuzufügen ist noch, daß der Schichtwerkstoff und damit der Schutzanzug auch völlig keimfrei gemacht werden kann und ferner keine auch noch so kleine Fremdkörperteilchen durchläßt. Der Schutzanzug ist deshalb, wie bereits angedeutet, besonders in Reinräumen, in der Medizin, in der Pharma-, Elektronik- und Automobilindustrie sowie in anderen Branchen verwendbar, wo es insbesondere auf höchste Sauberkeit, Keim- und Partikelfreiheit sowie auf längere Tragzeiten ohne Schweißbildung und Hitzestaus ankommt. Mit diesem Schutzanzug wird dementsprechend die Leistungsfähigkeit der betreffenden Personen bedeutend erhöht. Gegenüber einem nachfolgend zu beschreibenden einteiligen Schutzanzug hat der zweiteilige Schutzanzug den Vorteil, daß bei Beschädigungen nicht der komplette Anzug, sondern nur ein Teil davon ersetzt werden muß.It should also be added that the layer material and thus the protective suit can also be made completely sterile and also does not allow any foreign particles, however small. As already indicated, the protective suit is therefore particularly suitable for use in clean rooms, in medicine, in the pharmaceutical, electronics and automotive industries, and in other sectors where it is particularly important for maximum cleanliness, freedom from germs and particles, and for longer wearing times without sweating and Heat build-up arrives. With this protective suit, the performance of the people concerned is increased significantly. Compared to a one-piece protective suit to be described below, the two-piece protective suit has the advantage that not all of the suit but only a part of it has to be replaced in the event of damage.

Eine besondere Ausführungsform der Erfindung zeigt die Figur 3 mit einem einteiligen Schutzanzug 13, der höchsten Ansprüchen in Bezug auf Keim- und Partikel­freiheit gerecht wird. Die Nähte 13a und 18 sind auch hierbei zusätzlich mit Bändern 22 aus der Folie oder Membrane 21 (gestrichelt dargestellt) überschweißt, um auch an diesen Stellen ein mögliches Durchdringen von Flüssigkeit auszuschließen. An einer Halsöffnung 16 ist eine Halsmanschette 16a aus elastischem Material, vorzugsweise Gummi o. dgl., wie beim Überzieher 1, durch eine Naht 16a1 befestigt, wobei die Halsmanschette 16a durch eine Naht 16b dicht zusammengefügt ist. An Ärmelöffnungen 14 sind Ärmelmanschetten 15a und 14b aus elastischem Material, vorzugsweise Gummi o. dgl., durch Nähte 14a2 und 14b2 angebracht. Die Ärmelmanschetten 14a und 14b werden seitlich ebenfalls durch Nähte 14a3 und 14b3 zusammengehalten und sind am Ende durch vernähte Ränder 14a1 und 14b1 gegen Ausfransen geschützt. Ein in der Mitte des Schutzanzuges angebrachter, verdeckt ange­ordneter Reißverschluß 15 ermöglicht das schnelle Öffnen und Schließen des einteiligen Schutzanzuges 13. Mit dem Bezugszeichen 17 ist wiederum der gleiche Schichtwerkstoff wie beim Überzieher 1 und der Hose 2 gekennzeichnet. An der Seite und im Schritt wird der einteilige Schutzanzug 13 durch Nähte 18 zusammengehalten. An Hosenbeinteilen 19 sind Hosenbeinmanschetten 19a und 19b aus elastischem Material, vorzugsweise Gummi o. dgl., durch Nähte 19a1 und 19b1 angesetzt. Die Hosenbeinmanschetten 19a und 19b werden auch hier durch Nähte 19a2 und 19b2 dicht zusammengehalten. Am unteren Ende sind die Hosenbeinmanschetten 19a und 19b durch vernähte Ränder 19a3 und 19b3 gegen Ausfransen geschützt. Für sämtliche Nähte der Schutzanzüge 1, 6 bzw. 13 können auch solche mit verschiedenen Stichtypen vorgesehen sein.A special embodiment of the invention is shown in FIG. 3 with a one-piece protective suit 13 which meets the highest demands with regard to freedom from germs and particles. The seams 13a and 18 are also additionally welded with tapes 22 made of the film or membrane 21 (shown in dashed lines) in order to make a possible one at these points as well Exclude liquid penetration. A neck collar 16a made of elastic material, preferably rubber or the like, is fastened to a neck opening 16, as in the case of the overcoat 1, by means of a seam 16a1, the neck collar 16a being joined tightly by a seam 16b. Sleeve sleeves 15a and 14b made of elastic material, preferably rubber or the like, are attached to sleeve openings 14 by seams 14a2 and 14b2. The sleeve cuffs 14a and 14b are also held together laterally by seams 14a3 and 14b3 and are ultimately protected against fraying by sewn edges 14a1 and 14b1. A concealed zip fastener 15 attached in the middle of the protective suit enables the one-piece protective suit 13 to be opened and closed quickly. The reference numeral 17 in turn identifies the same layered material as the overcoat 1 and the pants 2. The one-piece protective suit 13 is held together by seams 18 on the side and in the crotch. Pants leg cuffs 19a and 19b made of elastic material, preferably rubber or the like, are attached to pants leg parts 19 by seams 19a1 and 19b1. The trouser leg cuffs 19a and 19b are also held together tightly here by seams 19a2 and 19b2. At the lower end, the trouser leg cuffs 19a and 19b are protected against fraying by sewn edges 19a3 and 19b3. For all seams of protective suits 1, 6 and 13, those with different stitch types can also be provided.

Während Fig. 4 schematisch den rasterförmigen Aufbau des Trägergewebes 20 zeigt, ist in Fig. 5 die wind- ­ und flüssigkeitsdichte, aber hoch atmungsaktive Folie oder Membrane 21 dargestellt.4 shows schematically the grid-like structure of the carrier fabric 20, in FIG. 5 the wind and liquid-tight but highly breathable film or membrane 21 is shown.

Fig. 6 zeigt eine besondere Ausführungsform des Schichtwerkstoffes für den Schutzanzug, wobei die Folie 21 zwischen zwei Schichten des Trägergewebes 20 angeordnet ist.6 shows a special embodiment of the layer material for the protective suit, the film 21 being arranged between two layers of the base fabric 20.

Alle in der Beschreibung und/oder den Zeichnungen dargestellten Einzel- und Kombinationsmerkmale werden als erfindungswesentlich angesehen.All individual and combination features shown in the description and / or the drawings are considered essential to the invention.

Claims (8)

1. Wind- und flüssigkeitsdichter, aus einem Compositwerkstoff gefertigter Schutzanzug, bestehend aus einem Überzieher mit Hals- und Ärmelöffnungen, die mit Manschetten aus dehnbarem Material, vorzugsweise Gummi o. dgl., versehen sind, wobei am Überzieherrand ebenfalls eine Manschette aus dehnbarem Material, vorzugsweise Gummi o. dgl., angeordnet ist, und aus einer Hose aus gleichem Material wie der Überzieher, deren Manschetten ebenfalls aus dehnbarem Material, vorzugsweise Gummi o. dgl., bestehen,
gekennzeichnet durch
ein Trägergewebe (20) in Form eines Gewirkes aus bekanntem Polyamid, wobei der Faden des Gewirkes eine antistatische Seele aus geeignetem Material enthält, und durch eine Folie oder Membrane (21) aus bekanntem 100 %igem Polyester mit einer Wasserdampfdurchlässigkeit von mindestens 100 g/qm pro Tag.1. Wind and liquid-tight protective suit made of a composite material, consisting of an overcoat with neck and sleeve openings, which are provided with cuffs made of stretchable material, preferably rubber or the like, with a cuff made of stretchable material also at the edge of the overcoat. preferably rubber or the like, is arranged, and a pair of pants made of the same material as the overcoat, the cuffs also made of stretchable material, preferably rubber or the like,
marked by
a carrier fabric (20) in the form of a knitted fabric made of known polyamide, the thread of the knitted fabric containing an antistatic core made of a suitable material, and a film or membrane (21) made of known 100% polyester with a water vapor permeability of at least 100 g / m2 per day. 2. Schutzanzug nach Anspruch 1, dadurch gekennzeichnet, daß das das Trägergewebe (20) aufbauende Polyamid ein 6-, 6,6- oder 11-Polyamid ist.2. Protective suit according to claim 1, characterized in that the carrier fabric (20) building polyamide is a 6-, 6,6- or 11-polyamide. 3. Schutzanzug nach Anspruch 1, dadurch gekennzeichnet, daß das die Folie oder Membrane (21) aufbauende Polyester ein Copolyätherester ist, welcher sich aus periodisch auftretenden Lang- und Kurzketten­estereinheiten zusammensetzt.3. Protective suit according to claim 1, characterized in that the film or membrane (21) building polyester is a copolyether ester, which is composed of periodically occurring long and short chain ester units. 4. Schutzanzug nach Anspruch 3, dadurch gekennzeichnet, daß die Langkettenestereinheiten aus Polyäthylenoxidglykol und die Kurzkettenestereinheiten aus Polybutylenterephthalat bestehen.4. Protective suit according to claim 3, characterized in that the long chain ester units consist of polyethylene oxide glycol and the short chain ester units consist of polybutylene terephthalate. 5. Schutzanzug nach Anspruch 1, dadurch gekennzeichnet, daß das Trägergewebe (20) auf die Folie oder Membrane (21) aus Polyester auflaminierbar ist, wobei die Folie oder Membrane (21) die Oberschicht bildet.5. Protective suit according to claim 1, characterized in that the carrier fabric (20) on the film or membrane (21) made of polyester can be laminated, the film or membrane (21) forming the upper layer. 6. Schutzanzug nach Anspruch 1 und 5, dadurch gekennzeichnet, daß die Folie oder Membrane (21) zwischen zwei Polyamidschichten (20) angeordnet ist.6. Protective suit according to claim 1 and 5, characterized in that the film or membrane (21) between two polyamide layers (20) is arranged. 7. Schutzanzug nach einem oder mehreren der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Schutzanzug (13) einteilig ausgebildet ist und einen verdeckt angeordneten Reißverschluß (15) aufweist.7. Protective suit according to one or more of claims 1 to 6, characterized in that the protective suit (13) is formed in one piece and has a concealed zipper (15). 8. Schutzanzug nach einem oder mehreren der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß sämtliche Nähte, auch die zur Befestigung der Manschetten, (1a, 9, 10, 11 sowie 3c, 4a2, 4b2, 5b, 7a3, 12a1, 12b1) bzw. (13a, 18 sowie 14a2, 14b2, 16c1, 19a1, 19b1) mit Bändern (22) aus der Folie oder Membrane (21) überschweißt sind.8. Protective suit according to one or more of claims 1 to 7, characterized in that all seams, including those for fastening the cuffs, (1a, 9, 10, 11 and 3c, 4a2, 4b2, 5b, 7a3, 12a1, 12b1) or (13a, 18 and 14a2, 14b2, 16c1, 19a1, 19b1) are overwelded with strips (22) from the film or membrane (21).
EP86114744A 1986-01-17 1986-10-23 Protective suit Expired - Lifetime EP0233995B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86114744T ATE55266T1 (en) 1986-01-17 1986-10-23 PROTECTIVE SUIT.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3601245 1986-01-17
DE3601245A DE3601245C1 (en) 1986-01-17 1986-01-17 protective suit

Publications (2)

Publication Number Publication Date
EP0233995A1 true EP0233995A1 (en) 1987-09-02
EP0233995B1 EP0233995B1 (en) 1990-08-08

Family

ID=6292042

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86114744A Expired - Lifetime EP0233995B1 (en) 1986-01-17 1986-10-23 Protective suit

Country Status (3)

Country Link
EP (1) EP0233995B1 (en)
AT (1) ATE55266T1 (en)
DE (1) DE3601245C1 (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3917336A1 (en) * 1989-05-27 1990-11-29 Bluecher Hasso Von Protective material for atomic. biological and chemical protection - consists water-and wind-proof layer of crosslinked vinyl] copolymer applied to outside of clothing
DE3927185A1 (en) * 1989-05-27 1991-02-21 Ruiter Ernest De Protective clothing material - uses plastic with hydropic fine segment content
FR2661803A1 (en) * 1990-05-14 1991-11-15 Borde Protection Sa Protective overalls (suit) for use in a clean environment
US5520980A (en) * 1994-01-31 1996-05-28 Kimberly-Clark Corporation Protective barrier apparel fabric
EP0906730A2 (en) * 1997-10-03 1999-04-07 Minnesota Mining And Manufacturing Company Protective garments incorporating bands of elastomeric material
EP1308186A3 (en) * 2001-11-02 2003-05-28 Texplorer GmbH Protective clothing against chemical and biological substances that are detrimental to health
WO2003086543A1 (en) * 2002-04-12 2003-10-23 3M Innovative Properties Company Personal protective suit with partial flow restriction
US6796304B2 (en) 2002-04-12 2004-09-28 3M Innovative Properties Company Personal containment system with sealed passthrough
WO2006128402A1 (en) * 2005-05-28 2006-12-07 Dastex Reinraumzubehör GmbH & Co. KG Clean-room clothing
WO2007096571A1 (en) * 2006-02-22 2007-08-30 Castlecrafts Limited Clothing with elastically extendable region
US9684436B2 (en) 1999-12-20 2017-06-20 Apple Inc. User interface for providing consolidation and access

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3928163A1 (en) * 1989-08-25 1991-02-28 Ruiter Ernest De Clean air garment material - uses steam permeable polyurethane film bonded to textile carrier
DE4003164A1 (en) * 1990-02-03 1991-08-08 Braeuer Horst Protective jacket for contaminated areas, partic. nuclear plant - is of polyester fabric with sliding clasp with seams covered by strip with second sliding clasp and seams covered by polyurethane strips
DE4013744A1 (en) * 1990-04-28 1991-10-31 Sandler Helmut Helsa Werke Material for protective clothing - has two layers of fabric with air-permeable polyurethane on inside of outer layer and an adsorber on inside of inner layer
GB9713014D0 (en) * 1997-06-20 1997-08-27 Minnesota Mining & Mfg Protective garments
CN105394839A (en) * 2014-09-15 2016-03-16 常熟市东吴丝绸服装厂 Lengthened antistatic garment
WO2020124399A1 (en) * 2018-12-19 2020-06-25 科德宝宝翎衬布（南通）有限公司 Cloth

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FR1579758A (en) * 1967-08-26 1969-08-29
DE2835412A1 (en) * 1978-08-12 1980-02-14 Helsa Werke Helmut Sandler & C Ski-wear multilayer fabric - has a polyester foam core layer bonded to outer and inner layers
US4442162A (en) * 1981-10-09 1984-04-10 Brunswick Corporation Chemical and biological resistant material and method of fabricating same

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US4422483A (en) * 1981-06-03 1983-12-27 Angelica Corporation Antistatic fabric and garment made therefrom
CA1191439A (en) * 1982-12-02 1985-08-06 Cornelius M.F. Vrouenraets Flexible layered product
DE8407196U1 (en) * 1984-03-09 1984-06-07 Rukka GmbH, 2000 Hamburg WATER SPORTSWEAR

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US3337382A (en) * 1962-11-23 1967-08-22 Du Pont Process for attachment of fibrous material to a backing
FR1579758A (en) * 1967-08-26 1969-08-29
DE2835412A1 (en) * 1978-08-12 1980-02-14 Helsa Werke Helmut Sandler & C Ski-wear multilayer fabric - has a polyester foam core layer bonded to outer and inner layers
US4442162A (en) * 1981-10-09 1984-04-10 Brunswick Corporation Chemical and biological resistant material and method of fabricating same

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3927185A1 (en) * 1989-05-27 1991-02-21 Ruiter Ernest De Protective clothing material - uses plastic with hydropic fine segment content
DE3917336A1 (en) * 1989-05-27 1990-11-29 Bluecher Hasso Von Protective material for atomic. biological and chemical protection - consists water-and wind-proof layer of crosslinked vinyl] copolymer applied to outside of clothing
FR2661803A1 (en) * 1990-05-14 1991-11-15 Borde Protection Sa Protective overalls (suit) for use in a clean environment
US5520980A (en) * 1994-01-31 1996-05-28 Kimberly-Clark Corporation Protective barrier apparel fabric
EP0906730A2 (en) * 1997-10-03 1999-04-07 Minnesota Mining And Manufacturing Company Protective garments incorporating bands of elastomeric material
EP0906730A3 (en) * 1997-10-03 1999-08-18 Minnesota Mining And Manufacturing Company Protective garments incorporating bands of elastomeric material
US9684436B2 (en) 1999-12-20 2017-06-20 Apple Inc. User interface for providing consolidation and access
EP1308186A3 (en) * 2001-11-02 2003-05-28 Texplorer GmbH Protective clothing against chemical and biological substances that are detrimental to health
US6792625B2 (en) 2001-11-02 2004-09-21 Texplorer Gmbh Protective suit for protection against harmful chemical and biological substances
US6796304B2 (en) 2002-04-12 2004-09-28 3M Innovative Properties Company Personal containment system with sealed passthrough
US6948191B2 (en) 2002-04-12 2005-09-27 3M Innovative Properties Company Personal protective suit with partial flow restriction
WO2003086543A1 (en) * 2002-04-12 2003-10-23 3M Innovative Properties Company Personal protective suit with partial flow restriction
WO2006128402A1 (en) * 2005-05-28 2006-12-07 Dastex Reinraumzubehör GmbH & Co. KG Clean-room clothing
WO2007096571A1 (en) * 2006-02-22 2007-08-30 Castlecrafts Limited Clothing with elastically extendable region
US7874018B2 (en) 2006-02-22 2011-01-25 Castlecrafts Limited Clothing with elastically extendable region

Also Published As

Publication number Publication date
EP0233995B1 (en) 1990-08-08
ATE55266T1 (en) 1990-08-15
DE3601245C1 (en) 1987-07-16

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