Test Results

Leakage resistance to penetration of artificial blood(1) and
artificial urine(2) (NFPA 1971-97 and ASTM F903)

Procedure B: Samples were exposed to artificial blood and artificial urine under 0 psi for 5 min followed by 1 psi (pound per square inch) for 10 min.

Substance

0 psi 5 min

1 psi 10 min

artificial blood

no penetration no penetration

artificial urine

no penetration no penetration

Conclusion : The Mystex™ fabric is leak-proof.

Note 1: The artificial blood is composed of the following: 25 g Acrysol G110 and 10 g Direct Red 81 in 1 liter of distilled water.

Note 2: Artificial urine; 0,64 g CaCl2 ; 1,14 g MgSO4; 8,20 g NaCl and 20,0 g urea in 1 liter of distilled water.


Absorption and retention of artificial blood(1) and artificial urine(2)

The specimen were soaked in the chemical for 1 minute and drained for 10 minutes. The specimens are weighted before and after treatment to obtain the absorption values . Then they are exposed to a centrifugal force of 100 g for 5 minutes to obtain the retention values.

Substance Absorption (g/g fabric) Retention (g/g fabric)

Artificial blood

8,3 ± 0,45 0,44 ± 0,02

Artificial urine

7,6 ± 0,19 0,32 ± 0,01

Conclusion:.The fabric absorbs over 8 times its own weight and and very easy to restore after washing.

Note 1: The artificial blood is composed of the following: 25 g Acrysol G110 and 10 g Direct Red 81 in 1 liter of distilled water

Note 2: Artificial urine; 0,64 g CaCl2 ; 1,14 g MgSO4; 8,20 g NaCl and 20,0 g urea in 1 liter of distilled water.


Antimicrobiological test results

The Mystex material used in the Releafwear impermeable sections is inherently antimicrobial as indicated by the following results conducted with the Staphylococcus aureus a bacterium commonly used to measure resistance to microbiological agents. Staphylococcus aureus (S. Aureus) is a bug carried by a third of the population and is one of the most common bacteria. It is known to cause a variety of infections and toxins in humans. It causes superficial skin lesions such as boils, styes and furunculosis; more serious infections such as pneumonia, mastitis, phlebitis, meningitis, and urinary tract infections; and deep-seated infections. S. aureus is a major cause of hospital acquired (nosocomial) infection of surgical wounds and infections associated with indwelling medical devices. It also causes food poisoning and toxic shock syndrome. Hospital patients and seniors in nursing homes are particularly at risk of infection because they often have exposed wounds and a weakened immune system.

Test method AATCC 100

This test method provides a quantitative procedure for the evaluation of the degree of antibacterial activity. Assessment of antibacterial activity finishes on textile material is determined by the degree of antibacterial activity intended in the use of such materials. . Quantitative evaluation also provides a clearer picture for possible uses of such treated textile materials.*Extract from American Association of Textile Chemists and Colorists.

Results of sample as received

Agent tested S. Aureus Time Quantity (cfu) *
0 < 100
1 hour < 100
24 hours 0
Percentage of reduction after 24 hrs is 100%
 

Results on sample washed 5 times

Agent tested S. Aureus Time Quantity (cfu) *
0 700 CFU
1 hour < 100
24 hours 0
Percentage of reduction after 24 hrs is 100%

Conclusion: The presence of inhibition on the sample is demonstrated. The fact that the zone of inhibition is very narrow is an indication that the active agent on the fabric is permanent and does not leach out in the laundering process thus ensuring the longevity of the antimicrobiological effect.


STAIN RELEASE OF ARTIFICIAL BLOOD

(Method AATCC 130 -1990 )

Procedure : 5 drops of artificial blood was stained on the sample. The stained sample was washed in the washing machine with a high level of water and 1,8 kg load at 40 C for 12 minutes then dried in the tumble drier at cotton/sturdy setting for 45 minutes. Thje stain after washing was evaluated by gray scale.

Stain release of artificial blood(1)

Gray scale : 5

* Gray scale 5 : no stain; Gray scale 1: serious stain

Conclusion: Blood stains can be washed off from the Mystex fabric

Note 1: The artificial blood is composed of the following:25 g Acrysol G110 and 10 g Direct Red 81 in 1 liter of distilled water.


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