Is yarn, piece or solution dyed fabric best for your product? No. © 2020 Eysan Fabrics Co,. The “2” test procedures include a peroxide-based bleach, sodium perborate (NaH2BO4), in the washing water. The color fastness to perspiration test determines the resistance of textile colors to human perspiration. The “M” refers to multiple washes, or approximately five domestic or commercial launderings. So this is when a supplier will inform a buyer if fabric reach the required colorfast standards. For this test, the lab attaches a strip of multifiber fabric to the test specimen to measure staining. Both natural and synthetic fabrics are subject to discoloration under UV rays (sunlight) and fluorescent light. But it’s always a good idea to err on the side of caution. The standard is a wool fabric dyed with 8 different light fastness blue dyes, and the degree of solarization between them is geometrically spaced. All textile colorants are susceptible to some fading in sunlight, as colorants by nature absorb certain wavelengths. Have you ever ignored the “wash with like colors” label on your clothes only to have your red shirt stain all your white towels? Color fastness to light test. Human sweat is typically acidic. EYSAN FABRICS | Functional Knitted Fabric, Ultimate Guide to Color Fastness of Fabrics, If you’re researching textiles (or just looking to avoid laundry disasters) read this. So all textile importers should consider this test for their products. AATCC 16 includes five different testing options. The amount of water is calculated as “wet pick up”, or the amount of fluid by percent weight picked up by the fabric. However, there are limitations. 90 – … The evaluation method is based on the comparison of the blue wool standard. Consumers don’t like their textiles to change colors or bleed during washing, under the sun or anywhere else. Or get in touch today to find out about EYSAN’s extensive range of knitted fabrics. The crocking test determines the resistance of textile colors to rubbing off and staining other materials. And even if you don’t have any problems with your vision, the same fabric can look very different in different lighting conditions and under different light sources. Option 3 is the most commonly used because it simulates extreme low humidity conditions and is most equivalent to the ISO 105 BO2 A2 cycle. The fading of the test sample is then rated in comparison to the fading of the blue wool reference. Any fabric pre-treatments that have been used. The level of color fastness you require and the tests you want to put your fabric through will all depend upon what your garments are going to be used for. Other standards also exist for color fastness to sea water, chlorinated water, hot pressing and other unique conditions. Perspiration Fastness: This test is designed for use in assessing the fastness of the dyed, printed, or otherwise coloured textile yarns and fabrics of all kinds to the effects of human perspiration. “The AATCC 16 Option 1 and 3 are test methods of the American Association of Textile Chemists and Colorists (AATCC). A textile item must withstand repeated washing throughout its lifecycle without losing its color properties or staining other articles its washed with. Any damage to the fabric surface and any finishes that have been used. But you don’t want your colored fabric to fade too quickly over the course of its life. It may be that they have to compromise a little on design in order to achieve the colorfast standards they’re looking for. The greatest exposure time is 80 hours on this scale. The tested fabric is rubbed against both wet and dry, non-dyed fabric for a specified time on a specially designed machine – a crockmeter. The crockmeter has a “rubbing finger” which the lab technician rubs across the fabric by turning a mechanical lever.