DE202006015974U1 - Undergarments from a special material of a fabric from cotton fibers, which is interspersed with activated charcoal and covers the entire body of the garment wearer, useful as gas protection suits - Google Patents

Abstract

Undergarments from a special material of a fabric from cotton fibers, which is interspersed with activated charcoal and covers the entire body of the garment wearer.

Description

1 starting point of development

In Germany move the fire brigades per year to approximately 6,000 employments with dangerous Fabrics and goods out. These inserts arise from incidents in workplaces and traffic accidents Dangerous goods transporters of all traffic media.

On The reason for the transported substances is an average of 25 % of all dangerous goods the danger that the staff of the fire department with skin damaging or skin-sensitive hazardous substances. That means, that in the year with approximately 1,500 inserts forces are sufficiently protected. Stand for chemical protection suits (CSA) are available to the fire brigades.

Tactically use At least 4 CSA carriers per dangerous goods usage are required CSA. At least 6,000 CSA will be used in the fire service every year carried. This staff is a significant physical burden and mental stress. To cope with it needed the CSA carrier size Amounts of energy. In the generation of these energies in the human body are occupied by experiments (see Appendix) large amounts of heat free set and respiration accelerated. The resulting heat and the water of the exhaled air and the evaporated sweat remain in the CSA. They produce a very unhealthy there within a few minutes Microclimate. CSA-carrier do it for 30 Minutes mentioned physically stressful activity. Often they also perform several times in a mission under CSA. Become CSA carriers So charged twice, by their employment and the unhealthy Microclimate in the CSA.

Similar Loads and strains are other occupational and professional groups exposed, z. B. blast furnace workers, chemical plant operators and divers. Alone in the industrial and commercial sector fall each year more than 10,000 work assignments under CSA and at least four times that amount among others gas-tight and watertight and luftaustauschbehindernden protective suits on.

labor, Rescue and practice assignments of Persons under gas-tight, watertight and air exchange-obstructing protective suits So at least 50,000 pieces performed every year. The number of wearing outside This area is not covered, but is certainly one many of them.

During my professional activities and came as a sideline expert for personal protective equipment I am in the investigation of these facts to the knowledge that one of the stressors, the unhealthy moist microclimate, good reduction by wearing a moisture absorbent underwear.

2nd basic idea of mine development

• – Feuchtigkeit unter solchen Anzügen wie CSA absorbieren,
• – eine Kühlwirkung erreichen und
• – eine Verringerung des Wärmedurchganges von der Anzugumgebung zur Haut des Anzugträgers ermöglichen

kann. Diese Unterkleidung besteht aus einem vorhandenen Spezialstoff aus einem Gespinst von Baumwollfasern, das mit Aktivkohle durchsetzt ist und den gesamten Körper des Anzugträgers bedeckt. So lässt sich die Absorptionsfähigkeit der Aktivkohle zur Speicherung von Feuchtigkeit aus der Ausatemluft und der Schweißverdunstung ausnutzen.My development assumes that the burden on the suit wearer must be noticeably reduced. For this I have developed an underwear that

• - absorbing moisture under such suits as CSA,
• - achieve a cooling effect and
• - Allow a reduction in the heat transfer from the suit environment to the skin of the suit wearer

can. This undergarment is made of a special fabric made from a web of cotton fibers, interspersed with activated charcoal and covering the entire body of the suit wearer. Thus, the absorption capacity of the activated carbon for storing moisture from the exhaled air and sweat evaporation can be exploited.

The perspiration from the skin of the suit carrier is considerably accelerated by the absorption of humidity. The resulting evaporative cooling cools the suit wearer, in his body heat with the evaporation cold balances.

The Air cushion in the activated carbon particles causes the thermal insulation of the suit carrier across from the ambient temperature of the suit carrier.

3. Effectiveness of my development

3.1 basic statement

The underwear prototype developed by me has about 5 m ² surface and covers the entire body of its wearer.

The activated carbon in the web of the undergarment, according to my experiments, is capable of storing up to about 2 liters of moisture per 5 m ^{2 of} specialty through physical absorption processes. As a result, even the 2 liters of moisture from the exhaled air, sweat evaporation, and liquid sweat resulting from CSA heavy work with 50 l / min respiration are completely absorbable and storable from the air inside the suit and skin of the suit wearer.

As proven in experiments (see section 3.2 test report), my Underwear so all incurred even in heavy work Moisture in gas-tight and watertight suit or suit with handicapped Absorb gas exchange.

Of the Suit results for his carrier an improvement of the insulation against heat or cold from the outside by an insulation against a direct heat transfer from the environment through the protective suit and on to the skin of the The suit.

The cooling effect of evaporated sweat compensates almost the physiologically induced heat development of the body of the body The suit.

For the suits is from the intended reduction of air humidity and heat in the suit a desired one Reduction of its burden clearly noticeable. The isolation from the Increased environmental temperature the effect of the underwear in addition.

Of the Suit fabric is washable and disinfectable, so also for multiple use suitable.

3.2 Test report

3.2.1 Objectives and scope the testing

Around To check the effectiveness of my development, I conducted a trial of Underwear (underwear) by. It was with cooperation partners Suits tested, according to my specifications from the specialty of a Company were made up. Participating in these user-oriented exams 5 cooperation partners.

• – Wärme und Feuchtigkeit aufnehmen kann und wieviel,
• – tragbar ist,
• – wasch- und desinfizierbar ist
• – verschleißfest ist,
• – kompatibel zu anderer Schutzkleidung, z. B. CSA, ist.

Main objectives were to determine if the underwear

• - can absorb heat and moisture and how much,
• - is portable,
• - Washable and disinfectable
• - wear resistant,
• - compatible with other protective clothing, eg. CSA, is.

• – Wärmeaufnahmevermögen,
• – Wasseraufnahmevermögen,
• – Eigenmasse,
• – Anlegbarkeit bei Einsatz-/Arbeitsstelle,
• – Beschaffungskosten (eventuell Ein-Weg-Produkt),
• – Tragbarkeit unter CSA und Taucheranzug:
• – Druckstellen durch Nähte,
• – Bewegungseinschränkungen durch Nähte und Schnitt,
• – Anpassungsgenauigkeit,
• – Hautkontaktfähigkeit,
• – Abriebbelastung,
• – Verpackung,
• – Lagerfähigkeit,
• – Waschbarkeit,
• – Desinfizierbarkeit mit verschiedenen Desinfektionsmitteln, z. B. „EW 80 mat" und des „Sekumatic FDR",
• – Trocknungsdauer.

Secondary objectives consisted in testing the properties of the undergarments that characterize the load capacity. For a model as vest and complete suit in size 54 are examined for the following product characteristics:

• - heat absorption capacity,
• - water absorption capacity,
• - net mass,
• - applicability at job site,
• - procurement costs (possibly one-way product),
• - Wearability under CSA and diving suit:
• - pressure marks through seams,
• - movement restrictions due to seams and cuts,
• - adaptation accuracy,
• - skin contact ability,
• - abrasion load,
• - packaging,
• - shelf life,
• - washability,
• - Disinfectability with different disinfectants, eg. "EW 80 mat" and "Sekumatic FDR",
• - Drying time.

The Check the disinfecting effect is carried out with the standardized Abklatschverfahren, Rodac plate and swab.

3.2.2 Testing technology

• Step 1: Put on the underwear and then the protective suit
• 2nd step: record 30 minutes of wearing time including the test parameter
• 3rd step: capture the subjective sensations of the wearer.
• 4th step: care by washing, disinfecting, rinsing, drying
• 1. Disinfect with the cleaning and disinfecting agent "Sekumatic FDR "at a water temperature of + 30 ° C,
• - Concentration: 1%, disinfection time: 15 min
• - Concentration: 2%, disinfection time: 5 min
• - Concentration: 2%, disinfection time: 15 min,
• - rinse at Water temperature: + 40 ° C, 7 min,
• 2. Drying Disinfect with the cleaning and disinfecting agent "EW 80mat" at a water temperature of + 30 ° C,
• - Concentration: 1%, disinfection time: 15 min
• - Concentration: 2%, disinfection time: 5 min
• - Concentration: 2%, disinfection time: 15 min,
• - rinse at Water temperature: + 40 ° C, 7 min,
• - Dry
• 5th step: exam the success of the treatment by:
• 1. Disinfection by grafting (DGHM germs) with Rodac plate and swab testing,
• 2. Check the rinsing effect,
• 3. Check compliance with normative or required in user instructions of the PPE Properties such as material behavior and fabric care, fiber stability, stain removal, Wear limit,

3.2.3 Conduct of the tests and summary test results

4. Invention quality

Cooling vests (company "Dräger safety" *), company "Ziegler" *)) and autarge cooling fans (company "Isotemp") belong to the state of the art today. ) for wearers of gas-tight chemical protective suits. To absorb sweat conventional textiles, eg. As sports underwear from different manufacturers used.

• – kompensieren aber nicht die Belastungen eines Anzugträgers durch hohe Luftfeuchtigkeit: Kühlwesten und Kühlventilatoren bzw.
• – versagen unter dem Anzug wegen fehlender bzw. zu geringer Speichermöglichkeit für die Feuchtigkeit: Sportunterwäsche, Kühlweste Firma Ziegler.

All these possibilities

• - but do not compensate for the burden of a suit carrier by high humidity: cooling vests and cooling fans or
• - fail under the suit due to lack of or too little storage possibility for the moisture: sports underwear, cooling vest company Ziegler.

• – Feuchtigkeit unter solchen Anzügen wie CSA zu absorbieren,
• – eine Kühlwirkung zu erreichen und
• – eine Verringerung des Wärmedurchganges von der Anzugumgebung zur Haut des Anzugträgers zu ermöglichen.

For my moisture-absorbing, cooling and thermally insulating underwear for gas- and waterproof as well as air exchange-hindering protective suits, I have researched which materials are better than the previous means suitable for

• - absorbing moisture under such suits as CSA,
• - To achieve a cooling effect and
• - To allow a reduction of the heat transfer from the suit environment to the skin of the suit wearer.

there I tracked down the fabric from a cotton-charcoal-spun and the existing state of this Gespinnst to a sub-suit user-oriented further developed.

• – die Unterziehkleidung im Schutzanzug entstehende Feuchtigkeit (Feuchte von Ausatemluft, verdunsteten Schweiß und flüssigem Schweiß des Trägers des Schutzanzuges) bis zum vierfachen seines eigenen Gewichtes absorbieren kann,
• – die Absorption von Feuchtigkeit eine gewollte Kühlwirkung im Schutzanzug erreicht,
• – eine thermischer Isolation gegen die Außentemperatur um den Schutzanzug entsteht,
• – die Unterziehkleidung beständig gegen chemische Einflüsse von Wasch- und Desinfektionsmitteln ist.

So I bring so the previous state of the art in the field of reducing loads on the wearer of gas and waterproof and Luftaustauschbehindernden protective suits. That's justified, because with this underwear for the first time

• - the underwear worn in the suit can absorb moisture (exhaled air moisture, vaporized sweat and liquid sweat of the wearer of the suit) up to four times its own weight,
• The absorption of moisture achieves a desired cooling effect in the protective suit,
• - a thermal insulation against the outside temperature around the protective suit,
• - The underwear clothing is resistant to chemical influences of detergents and disinfectants.

Claims (1)

The protection claim is characterized in that the underwear from a special fabric consist of a web of cotton fibers, which is permeated with activated carbon and covers the entire body of the suit wearer.