Color fastness to water determines the resistance of textile colors to immersion in water. Itâs important to know whether a fabric is colorfast for a number of reasons. However, a lot depends on the original color of the fabric. In these cases, a color fixing agent can be used during the dyeing process to improve color fastness. Which dyeing method should you choose? The lab compares the color of the test specimen with the Grey Scale for Color Change, with a desired grade 4 rating. Whilst the tests have some differences, they all mimic the processes garments usually go through in the course of daily use. For instance, polyester is usually more colorfast than nylon. And thirdly, so that you know youâre providing a quality item to consumers. 90 – … Fiber. The rubbing fingers vary in size for pile fabrics and other textiles. Consumers don’t like their textiles to change colors or bleed during washing, under the sun or anywhere else. Color fastness is the resistance of a fabric to change in its color characteristics or to transfer its colorant(s) to adjacent materials. The standards are technically equivalent, but the testing methods vary slightly between them. Eysan is a knitted fabric expert. That is why color fastness to Crocking/Rubbing is especially important in the bag manufacturing industry. © 2020 Eysan Fabrics Co,. Color fastness during washing is one of textile importers’ main concerns. So all textile importers should consider this test for their products. That is, level 2 sun 57 h, level 3 sun 112 h, level 4 sun 166 h, level 5 sun 220 h, level 6 sun 275 h, 7 level sun 329 h. Under normal circumstances, the light fastness can reach 4, and the special requirements for high light fastness can reach 5 levels. The color fastness is denoted by the number of the light fastness standard fabric that has change color to the same extent as the test specimen. 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. Chances are you’ve come across the phrase “wicking fabric“. Share your tips in the comment section below! Recommended Product Information And Background You Should Send Us, Good Manufacturing Practice (GMP) Audits and Training, Retail/Brand Specific Compliance Programs, previously included alkaline test methods, Apple Supplier Responsibility Compliance Services, Sears & Kmart Vendor Conduct Adjustment Services, Sporting Goods, Fitness Equipment and Bicycle. Contact us today to discuss your fabric requirements. ISO 105 E01 and AATCC 107 are the most common standards for color fastness tests to water. You put the tested fabric with the non-tested fabric, or the non-dyed swatch into the machine and set the appropriate light source. Gester Instruments Co.,LTD is professionally engaged in production and R&D of physical properties testing equipment. EYSAN FABRICS | Functional Knitted Fabric, Ultimate Guide to Color Fastness of Fabrics, If youâre researching textiles (or just looking to avoid laundry disasters) read this. If you have any questions regarding knitted fabrics or have any knitted fabric needs, please feel free to reach out to us. A red sock has found its way into a wash load of whites and now everything has turned a sickly shade of pink! 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 issues can be caused by: Poor color fastness can cause fabric shade variation or the staining of other products. Both natural and synthetic fabrics are subject to discoloration under UV rays (sunlight) and fluorescent light. How to determine the color fastness of a fabric? Receive our latest news and make sure you don't miss anything! This machine replicates different light sources in a consistent way, making your visual assessment of color much more accurate. The color fastness to perspiration test determines the resistance of textile colors to human perspiration. Top 5 Sportswear Fabric Trends for SS2021, EYSAN Donated Disaster Perambulator Car to Tainan City Fire Department, A Complete Guide to Fabric Sourcing & Fabric Suppliers, Fabric Trend Sportswear Spring Summer 2022, Sportswear Color Trends Forecast for Spring/Summer 2022. The standard is a wool fabric dyed with 8 different light fastness blue dyes, and the degree of solarization between them is geometrically spaced. Most apparel units are exposed to 20 AFU and rarely need to be exposed to more than 40 AFU. The test methods that we usually use for Crocking/Rubbing are called "BS EN ISO 105 X12" and "AATCC 8". Find out the key differences between these fabric dyeing methods. The standard is a wool fabric dyed with 8 different light fastness blue dyes, and the degree of solarization between them is geometrically spaced. A fabric with good quality color fastness would achieve a color change rating of 4 and a color staining rating of 3 to 5. To eliminate this issue, you need a Color Assessment Cabinet. The test measures the transfer of dyestuff/colour when exposed to perspiration, and the levels of performance are shown in the table below. Stay updated on the latest in product inspection, auditing, and corporate responsibility weekly from the, No.1199 Heping Road, Jintian Building, Floor 9, Office 909, Luohu, Shenzhen, Guangdong, China 518010, China: +86 755-2220-0833Europe: +33 6 43 27 34 46North America: +1 617-274-8677South America: +57 311 717 5792. The Grey Scale for Staining rates the staining of an undyed material tested with the specimen from 1 (greatest color transfer) to 5 (no color transfer). Sourcing material for outdoor or sports clothing? Examples include SGS, Bureau Veritas(BV) and Intertek. Each and every fiber has different properties. The AATCC previously included alkaline test methods in the standard but removed it in 1974, as they didn’t believe it reflected normal end usage. The best way to ensure your fabric’s color can withstand regular use is to test it in different conditions before shipment.
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