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Dyes refer to a type of organic compound that can give other substances a bright and firm color. Due to the fact that pigments used today are all artificially synthesized, they are also known as synthetic dyes. Dyes and pigments are generally compounds that have their own color and can give other substances a bright and firm color in a molecular or dispersed state. Dyeing fastness refers to the ability of dyes or pigments to maintain their original color state during use or subsequent processing of dyed fabrics under various external factors. Color fastness is one of the important quality indicators for measuring dyed products, with low color fastness for easily fading products and high color fastness for non fading products. Color fastness largely depends on its chemical structure. In addition, the physical state, degree of dispersion, binding between dyes and fibers, dyeing methods, and process conditions of dyes on fibers also have a significant impact Function of testing report:1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report 2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problems100% inspection and testing process:1. Telephone communication and confirmation of requirements 2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:1. The testing industry is fully covered, meeting different testing needs 2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate 4. Free initial testing, with no testing fees charged 5. Self service order delivery for free on-site sampling 6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China
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