EP0374776A1 - Appareil respiratoire avec une housse de protection en tissu revêtu - Google Patents

Appareil respiratoire avec une housse de protection en tissu revêtu Download PDF

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Publication number
EP0374776A1
EP0374776A1 EP89123313A EP89123313A EP0374776A1 EP 0374776 A1 EP0374776 A1 EP 0374776A1 EP 89123313 A EP89123313 A EP 89123313A EP 89123313 A EP89123313 A EP 89123313A EP 0374776 A1 EP0374776 A1 EP 0374776A1
Authority
EP
European Patent Office
Prior art keywords
fabric
resistant
hood
coating
chemical
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.)
Withdrawn
Application number
EP89123313A
Other languages
German (de)
English (en)
Inventor
Rudolf Greiff
Holmer Röhling
Wolfgang Marquardt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Draegerwerk AG and Co KGaA
Original Assignee
Draegerwerk AG and Co KGaA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Draegerwerk AG and Co KGaA filed Critical Draegerwerk AG and Co KGaA
Publication of EP0374776A1 publication Critical patent/EP0374776A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/12—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins
    • D06N3/128—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. gelatine proteins with silicon polymers
    • 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
    • A62B17/04—Hoods
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D5/00—Composition of materials for coverings or clothing affording protection against harmful chemical agents
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06N—WALL, FLOOR, OR LIKE COVERING MATERIALS, e.g. LINOLEUM, OILCLOTH, ARTIFICIAL LEATHER, ROOFING FELT, CONSISTING OF A FIBROUS WEB COATED WITH A LAYER OF MACROMOLECULAR MATERIAL; FLEXIBLE SHEET MATERIAL NOT OTHERWISE PROVIDED FOR
    • D06N3/00—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof
    • D06N3/04—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D06N3/06—Artificial leather, oilcloth or other material obtained by covering fibrous webs with macromolecular material, e.g. resins, rubber or derivatives thereof with macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds with polyvinylchloride or its copolymerisation products

Definitions

  • the invention relates to a breathing apparatus with a protective cover, in particular a smoke protection hood, the breathing connection of which is connected to a chemical absorbing the water vapor and the CO2 and oxygen-releasing chemical or to a filter, and whose cover or.
  • Hood material consists of a coated composite material with a carrier fabric made of tear-resistant, heat-resistant and water-vapor-repellent fibers.
  • Such respiratory protective devices with, for example, a smoke protection hood as a protective cover are used for use in non-breathable atmospheres and are also intended to protect the wearer from harmful heat effects.
  • the breathing apparatus itself is attached at a suitable location, for example in front of the chest or in the neck area of the device wearer, and has a flow connection into the interior of the hood space. When the respirator is put on and the hood is pulled over, the oxygen-releasing chemical reacts and releases its oxygen.
  • the hood material itself consists of a fabric made of tear-resistant, heat-resistant and water vapor-repellent material, such as Glass fibers are. This is coated with polytetrafluoroethylene (PTFE).
  • PTFE polytetrafluoroethylene
  • a disadvantage of known hood materials is that the brittle glass fibers break too easily and the broken fibers do not withstand subsequent tearing, so that undesirable leaks or even holes occur which destroy effective respiratory protection.
  • such a hood fabric is not strong enough to penetrate pointed objects.
  • the processing of the known hood material is complex, since special precautions must be taken for the strength of the resulting seams on the hood cut; an adhesive bond is not resistant to PTFE due to its low adhesion and seams often tear due to the brittleness of the fabric.
  • Respirators with a chemical as an oxygen source which absorbs carbon dioxide and water vapor and uses it to form oxygen (e.g. KO2) are sensitive to moisture, so that such respirators must be packaged in a water vapor-tight and dry manner so that during the storage period of the respirator in the packaging diffuses or from the components not released water vapor leads to premature activation of the chemical and unwanted release of oxygen.
  • Sealed packaging is expensive, however, and drying the various components that are in fluid communication with the chemical requires an additional drying operation. If extensive casing material, such as a hood, is also packaged, the water vapor stored by the casing material can still be released into the interior and to the chemical despite the packaging being water-tight. To prevent this, the chemical cartridge would also have to be sealed.
  • Such devices are described in DE-AS 11 95 602.
  • the present invention is therefore based on the object to improve a respirator of the type mentioned so that the material which is in flow communication with the chemical has both the lowest possible water vapor storage or release, and the protective cover breaks despite its elasticity and is tearproof and easy to work with.
  • the composite material has the carrier fabric made of glass fibers, which is provided on one side with a PVC coating to the environment and has a silicone coating on its surface facing away from the PVC coating.
  • the silicone-coated glass fiber fabric is characterized by a lack of water vapor absorption and storage, which prevents later undesired water vapor emission from the outset.
  • the outer PVC coating which is directed towards the surroundings, ensures a largely gas-tight seal to the outside and facilitates the processability of the fabric material into a protective cover, in particular a protective hood.
  • a more extensive processing of the fabric material into a complete protective suit, which encloses the entire body of the device wearer, is also easier to achieve with the features according to the invention.
  • the entire casing material can be included in the packaging of a respirator without any special additional drying process, although there is no need to fear that an excessive release of water vapor could lead to an early development of oxygen from the chemical.
  • a composite material can be produced in a simple manner in such a way that both the PVC coating and the silicone coating are applied as an impregnation to the glass fiber fabric.
  • silane acts as an adhesion promoter, ensures that the coatings last longer.
  • the piece of fabric shown in Fig. 1 is designed in three layers, the middle layer is a glass fiber fabric (1), the individual glass fibers (2) are shown in their end face.
  • the surface facing the outside during the subsequent processing of the composite material is provided with a PVC coating (3).
  • the surface of the glass fiber fabric (1) opposite the coating (3) is covered with a silicone coating (4).
  • the individual glass fibers (2) can be provided with a sheathing (5) made of silane as an adhesion promoter (Fig. 2) and linked together to form a fabric (1) made of coated glass fibers (25).
  • a shell (6) is shown, both the head area and the shoulder and back or. Breast area of a person not shown covered.
  • a screen (7) is provided in the head area of the casing (6), below which a half mask (8) with a connecting tube (9) is connected to a breathing apparatus (10).
  • the breathing apparatus has a chemical cartridge, not shown, with a chemical that absorbs the water vapor and the CO2 of the exhaled gas, as well as an oxygen-releasing chemical.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Textile Engineering (AREA)
  • Toxicology (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Dispersion Chemistry (AREA)
  • Materials Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
EP89123313A 1988-12-22 1989-12-16 Appareil respiratoire avec une housse de protection en tissu revêtu Withdrawn EP0374776A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19883843166 DE3843166A1 (de) 1988-12-22 1988-12-22 Atemschutzgeraet mit einer schutzhuelle aus einem beschichteten gewebe
DE3843166 1988-12-22

Publications (1)

Publication Number Publication Date
EP0374776A1 true EP0374776A1 (fr) 1990-06-27

Family

ID=6369800

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89123313A Withdrawn EP0374776A1 (fr) 1988-12-22 1989-12-16 Appareil respiratoire avec une housse de protection en tissu revêtu

Country Status (2)

Country Link
EP (1) EP0374776A1 (fr)
DE (1) DE3843166A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0450144A1 (fr) * 1990-04-06 1991-10-09 Drägerwerk Aktiengesellschaft Appareil de protection respiratoire à cagoule protectrice en tissu doublé
FR2848228A1 (fr) * 2002-12-09 2004-06-11 Ferrari S Tissage & Enduct Sa Membrane revetue apte a etre utilisee notamment en tant que bache de protection

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4179537A (en) * 1978-01-04 1979-12-18 Rykowski John J Silane coupling agents
GB2160123A (en) * 1984-06-12 1985-12-18 Tikkurilan Vaeritehtaat Oy Waterproof fabric
JPS6197408A (ja) * 1984-10-17 1986-05-15 ダイヤゴム株式会社 ゴム手袋

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1074979B (de) * 1957-02-02 1960-02-04 Fa J H Benecke Hannover Flexibler Schutzstoff gegen atomare, bakterielle und chemische Waffen,
DD213597A1 (de) * 1983-02-14 1984-09-19 Asglatex Ohorn Veb Material fuer schutzbekleidung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4179537A (en) * 1978-01-04 1979-12-18 Rykowski John J Silane coupling agents
GB2160123A (en) * 1984-06-12 1985-12-18 Tikkurilan Vaeritehtaat Oy Waterproof fabric
JPS6197408A (ja) * 1984-10-17 1986-05-15 ダイヤゴム株式会社 ゴム手袋

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JAPANESE PATENTS GAZETTE, Derwent Publications Ltd, section CH: chemical, Woche 8626, Accession Nr. 86-165259/26, 6. August 1986; & JP-A-61 097 408 (DIA GUM KK (SHIE)) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0450144A1 (fr) * 1990-04-06 1991-10-09 Drägerwerk Aktiengesellschaft Appareil de protection respiratoire à cagoule protectrice en tissu doublé
FR2848228A1 (fr) * 2002-12-09 2004-06-11 Ferrari S Tissage & Enduct Sa Membrane revetue apte a etre utilisee notamment en tant que bache de protection
EP1431447A1 (fr) * 2002-12-09 2004-06-23 Tissage et Enduction Serge Ferrari SA Membrane revêtue apte à être utilisée notamment en tant que bâche de protection

Also Published As

Publication number Publication date
DE3843166A1 (de) 1990-06-28

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