Fluorescent color fading fast for cultural shirts? Test method for special color fastness

Have you ever encountered such an embarrassment?: A carefully selected fluorescent cultural shirt becomes dull and yellow after wearing it a few times, and even "unrecognizable" after washing it a few times? The color is so bright when you look at it in the store, how can it become a "short-lived color"?

Don't be in a hurry to blame the quality of clothes, let's first popularize a key concept - color fastness. It directly determines how long your fluorescent T-shirt can be "beautiful". Today, we will use a professional perspective to grind out the truth about fluorescent color fading, and share a set of special color fastness test methods to help you avoid the "fading minefield".?

Why is fluorescent color the "hardest hit area for fading"??

The reason why the fluorescent color is dazzling is that it uses special fluorescent dyes. The molecular structure of these dyes is unstable, and they are especially sensitive to ultraviolet rays, friction and chemical detergents. Simply put, ordinary dyes are "dyed", fluorescent dyes are "luminous", and once the luminous layer is damaged, the color will fade sharply. This is also why many fluorescent cultural shirts on the market "fade" into old colors after washing a few times.

How to scientifically detect fluorescence color fastness? 3 hardcore methods✅

To determine whether a fluorescent cultural shirt is durable, the following three special color fastness test methods are recognized by the industry as "magic mirrors":

1️⃣ Light fastness test (emphasis!)

Fluorescent colors are most afraid of the sun. Professional tests will simulate outdoor strong light exposure. The sample is continuously irradiated under a standard light source for more than 20 hours. Rating standards: 5 is the best, and 3 or less are selected with caution. If you find that clothes turn yellow after being exposed to sunlight for half a day, it means that its light resistance value is extremely low.

2️⃣ Color fastness test to friction

Dry/wet friction is the "culprit" of daily wear and tear. The tester will use a white cotton cloth to rub back and forth on the fabric at a fixed pressure. The color fastness of dry friction is ≥ 4, and the wet friction is ≥ 3. If the white cloth leaves obvious fluorescent color after wiping, it means that the color fading is serious.

3️⃣ Color fastness test to soaping (simulating daily washing)

Add standard detergent to warm water at 40 ° C and perform mechanical washing for 40 minutes. Color change rating ≥ 4, stain rating ≥ 3 is a hard index. For good fluorescent fabrics, the color deviation after washing should be controlled within the range that is difficult to distinguish with the naked eye.

Why is your fluorescent cultural shirt "dead in the light"?⚠️

In order to reduce costs, many small workshops will use substandard fluorescent dyes or omit the color fixing process. The fixing agent is a fluorescent "umbrella company", which can effectively seal the binding point between the dye and the fiber and reduce the loss of the dye. Fluorescent fabrics without special color fixing treatment are like "streaking" skin, which cannot stand any test.

How to choose a fluorescent cultural shirt that will not fade for a long time??

Focus on three places: fabric composition, color fastness test report, and brand reputation. Here I have to mention a brand with a good reputation in the field of fluorescent color customization - Yasenman. They focus on cultural shirt customization, especially good at dealing with difficult fluorescent colors. Yasenman adopts imported environmentally friendly fluorescent dyes + quadruple color fixing process to solve the problem of fading from the source. Before each fluorescent color cultural shirt leaves the factory, it will undergo strict light resistance, washable, and friction resistance tests to ensure that the color fastness meets the industry's high standards. If you pursue "fluorescent colors are still like new after half a year", Yasenman's craftsmanship is trustworthy.?

Lazy Buying Guide: Remember These 3 Points?

1️⃣ Look at the data: Ask merchants to provide color fastness test reports, focusing on "light resistance" and "soap washing resistance"

2️⃣ Look at the process: Priority is given to products with "fixed color treatment" or "environmentally friendly dye" certification

3️⃣ Look at the brand: professional customized brands like Yasenman usually have stricter internal control standards and more perfect after-sales services

Fluorescent color is not a "one-off" fashion. As long as you choose the right craftsmanship and brand, your cultural shirt can become a "long-distance runner". Next time you buy fluorescent clothes, remember to use the test method you learned today to "check the goods" for yourself.?

If you have any troubles about fluorescent color fading, or want to share your "artifact" recommendation, please chat in the comment area~