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SGS now caters to the demand of testing fabrics for colorfastness in the Philippines, with the launch of Colorfastness to Light Test. This specific test measures the resistance to fading of a colored (dyed) material when exposed to a light source.

WHY SHOULD TEXTILES BE TESTED FOR COLORFASTNESS TO LIGHT?

During usage, textiles are usually exposed to a light source. Such exposure tends to destroy colorants that result to fading, whereby the color becomes paler and duller. Dyes used in the textile industry vary enormously in their reaction to light; thus a method to measure lightfastness is necessary. Apart from the dye quality, the substrate used (fabric type) may also influence the lightfastness of the material.

It is also important to note that regulations concerning colorfastness of textiles have become stringent in recent years. Most European and U.S. textile product buyers require products that passed colorfastness to light test and that comply with relevant national and international standards.

The colorfastness to light test may determine the following:

  • Color quality of the textile in terms of its dye content once exposed to a light source
  • “Fading” reaction of the textile once exposed to a light source
  • Product best care instruction with regard to exposure to light source, particularly goods that are suitable for outdoor use
  • Cost efficiency measures in the dying process of the product

Quality tests, such as colorfastness to light test, instill product satisfaction among consumers. With products that passed quality tests, product recalls may be prevented, customer complaints are minimized, and client retention increases.
 

WHAT PRODUCTS CAN BE TESTED FOR COLORFASTNESS TO LIGHT?

  • Softlines including textiles of all types (e.g. yarn, fabric, and clothing), umbrellas, tents, and tarpaulins
  • Hardgoods including planters, furniture, and outdoor decor made of metal, resin, or wood and painted items

HOW IS THE TEST DONE?

The prepared test sample together with a set of reference material (Blue Wool Standards Fabric) is exposed, under controlled conditions, to an artificial light source (e.g. xenon and arc lamp Fade-Ometer) that acts as representative of natural daylight for a certain length of time. The colorfastness is then evaluated using a Standard Gray Scale by comparing the change in color of the tested sample with that of the unexposed sample and the reference material.
 

WHAT ARE THE AVAILABLE TEST METHODS? 

  • AATCC 16
    This method provides the general principles and procedures to determine the colorfastness to light of textiles. The test options described are applicable to textiles of all kinds and for colorants, finishes and treatments applied to textiles. (With reference to AATCC 16.3:2012) 
  • ISO 105-B02:2014/BS EN ISO 105-B02:2014 (ISO 105 B02)
    This method determines the effect of an artificial light source representative of natural daylight (D65) on the color of textiles of all kinds and forms. The method is also applicable to white (bleached or optically brightened) textiles. (With reference to ISO 105–B02:2014(E))
     

WHY TEST WITH SGS?

Gaining independent verification from SGS to certify your product quality can boost your reputation and add to your brand value. Our laboratories are recognized by reputable accreditation schemes hence you can be sure that our tests comply with relevant industry standards.
SGS has a wide network across the world, allowing us to provide efficient and effective services in all the main textile manufacturing countries, thus saving your time and resources.

For enquiries, please contact:

Karen Mae Galang
Consumer and Retail
T: +63 2 784 9400 local 232

ABOUT SGS

SGS is the world’s leading inspection, verification, testing and certification company. SGS is recognized as the global benchmark for quality and integrity. With more than 85,000 employees, SGS operates a network of over 1,800 offices and laboratories around the world.