SHERPA FLEECE-380 CERTIFIED TO EN 20471

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In March 2019 XM Textiles polyester fabric Sherpa Fleece-380 (Hi-Viz Yellow) has been successfully tested and certified to EN 20471 (High visibility clothing – Test methods and requirements).
Sherpa-fleece-380 is a modern fabric that imitates faux fur. This fabric is named so because of its similarity with the outerwear of the Sherpa people living in Southeast Asia. Sherpa has good heat-retaining properties and high durability. It is used in the manufacture of warm clothes (winter insulated jackets, shoes, coats, etc.).

The Standard EN 20471:2013 specifies requirements for high visibility clothing which is capable of visually signaling the user’s presence. The high visibility clothing is intended to provide conspicuity of the wearer in any light condition when viewed by operators of vehicles or other mechanized equipment during daylight conditions and under illumination of headlights in the dark.

Performance requirements are included for colour and retroreflection as well as for the minimum areas and for the placement of the materials in protective clothing.
According to standard EN 20471 has been successfully passed all the following tests:

 

1. DETERMINATION OF COORDINATES (X,Y,Y)
The chromatic coordinates must be situated within the area defined by the coordinates specified in the Standard EN ISO 20471:2013/A1:2016 and the luminance factor shall exceed 0,70 specified in the Standard EN ISO 20471:2013/A1:2016.
Alba passed the test with the following results:

• Original: 0,9578 – PASS
• After testing light fastness: 0,9615 – PASS
• After 5 washing cycles at 40ºC + tumble drying: 0,9796 – PASS

 

2. COLOUR FASTNESS TO RUBBING
The limit set by the Standard EN ISO 20471:2013/A1:2016 for color fastness to rubbing is 4, in dry.

• Warp/Weft (dry staining): 4-5 – PASS

 

3. COLOUR FASTNESS TO PERSPIRATION
The limit set by the Standard EN ISO 20471:2013/A1:2016 point (5.3.2) for testing of colour fastness to perspiration, is 4 for degradation and 4 for staining

ALKALINE SOLUTION

• change in colour: 5 – PASS
• staining (cotton/polyester): 4-5 – PASS

ACID SOLUTION

• change in colour: 5 – PASS
• staining (cotton/polyester): 4-5 – PASS

 

4. COLOUR FASTNESS TO DOMESTIC AND COMMERCIAL LAUNDERING
The limit set by the Standard EN ISO 20471:2013/A1:2016 point (5.3.3) for testing of colour fastness to washing, is 4-5 for degradation and 4 for staining.

• change in colour: 5 – PASS
• staining (cotton/acryl): 4-5 – PASS

 

5. BURSTING RESISTANCE
Pneumatic method for determination of bursting strength and bursting distension

• Bursting Strength: 628(kPA) – PASS

 

6. WATER VAPOUR RESISTANCE
According to the requirements of EN ISO 20471:2013+EN ISO 20471:2013/A1:2016, if the water vapor resistance is higher than 5 m2Pa/W is to be measured the thermal resistance to determinate the water vapor permeability index. The water vapor permeability index to should be ≥ 0,15.

Water vapour resistance Ret (m2Pa/W): 7.01 – PASS

You can find all certificates and additional information on the product page.