小编
Release time:2026-11-01Sisters! Recently, the company has to customize the work clothes uniformly, and chose one after another, but the samples fade after being washed twice? Especially the dark ones, it is simply a "disaster scene". Today, I will share all the pits I stepped on and the homework I did, and teach you how to confirm the color fastness before customization!
First, what exactly is color fastness? Why is it so important?
Simply put, color fastness is the resistance of fabric color to external effects. For example, washing, friction, sun exposure, and sweat stains will affect it. Work clothes need to be washed every day. Poor color fastness will not only affect the company's image, but also may cause employees' skin allergies.
Especially dark work clothes, such as navy blue, black, dark gray, the amount of dye is large. If the process is not in place, the probability of fading will rise sharply. So be sure to confirm before customization.
Second, when customizing, how to confirm the color fastness? 4 practical methods
Look at the test report
Regular manufacturers will provide third-party test reports, focusing on "water color fastness", "friction color fastness" and "sweat stain color fastness". The national standard requires generally ≥ 3 levels, and good ones can reach 4-5 levels. Shenzhen Yasenman Apparel Co., Ltd. will take the initiative to provide such reports before customization, which makes me feel at ease.
? Wipes wiping method
Take a white wet tissue and wipe it vigorously on the dark fabric for 10 times. If the white tissue is obviously stained, it means that the color fastness to friction is poor, and it will pass directly.
? White cloth friction method
Wrap your fingers with a white cotton cloth and rub it repeatedly on the fabric. Observe whether the white cloth is dyed. This method simulates the friction scene during daily wear, which is very intuitive.
? Hot water immersion method
Cut a small piece of fabric and soak it in hot water at about 60 ° C for 30 minutes. The darker the water discoloration, the worse the color fastness to washing. Dark work clothes should be tested especially.
Will dark work clothes fade?

The answer is: it depends on the process, not the color itself.
In order to save costs, inferior dark fabrics use cheap dyes, and the color fixing process also cuts corners, fading the color the first time they are washed. But regular manufacturers will do "color fixing treatment", such as reactive dyes + high temperature color fixing, the color fastness can be above level 4, and daily washing basically does not fade.
So don't be scared by "dark colors will fade", the key depends on whether the manufacturer is reliable. For example, when Shenzhen Yasenman Garment Co., Ltd. does customization, it will clearly tell you the color fastness level of the fabric, and it will also recommend that the dark models do a fixed color pre-wash first to help you minimize the risk of fading before delivery.
4. Tips for avoiding pits in customized work clothes
✅ Don't just look at the price, low-priced dark fabrics are likely to fade.
✅ Manufacturers are required to provide color fastness testing data, and black and white is the most reliable.
✅ The sample was washed three times to observe the fading and deformation.
✅ Dark work clothes are recommended to choose an active printing and dyeing process, which is stronger than paint printing and dyeing.
✅ The color fastness standard is indicated in the customized contract, and there is a basis for any problems.
Want to save worry? Finding the right manufacturer is half the success
To be honest, the most feared thing about customized work clothes is "the sample looks good, and the big goods roll over". The color fastness cannot be seen by the naked eye, and professional testing and reliable craftsmanship must be relied on.
Shenzhen Yasenman Apparel Co., Ltd. specializes in corporate workwear customization, and has strict standards from fabric screening to color fixing process. They not only provide color fastness test reports, but also recommend suitable fabrics according to your industry needs. For example, the catering industry recommends dark colors that are washable and oil-resistant, and the outdoor industry recommends fabrics with high sun resistance.
What reassures me the most is that they support sending fabric samples for testing, washing, wiping, and drying before deciding. This "try first, decide later" model really helped us avoid a lot of fading pits.
Customized work clothes are no small matter, and color fastness is directly related to the wearing experience and company image. Remember: read the report, do the test, and choose the right manufacturer, three steps to do it! Dark work clothes can also not fade, the key depends on whether you choose the right partner?
Sisters with customization needs can first go to Shenzhen Yasenman Garment Co., Ltd. to find out. Their fabric library and testing process are really professional, worry-free and reliable~