For a long time, fluorescent fabrics have been popular in people's fashion collocations. Under the display of products brought by some trend leaders, their eye-catching colors have unconsciously occupied a certain position and cannot be ignored. For example, the famous rapper and fashionista Kanye Omari West and the Chinese pop singer General are also loyal fans of fluorescent fabrics. In recent years, the varieties of fluorescent fabrics have continued to innovate, from high-key fluorescent green to single fluorescent purple, with pure colors as the mainstay.

Another name for fluorescence is "firefly light", which refers to the phenomenon of luminescence caused by light. Generally speaking, when a normal temperature substance is irradiated by ultraviolet rays or other wavelengths of x-rays, the excited state will be triggered immediately after absorbing the light, and at the same time, it will emit visible light with a longer wavelength than the irradiated light. Light will lose its own luminous ability; anyone who has this kind of luminescence caused by light is called fluorescence.

The popular explanation is that people see brighter colors such as green, yellow, orange and purple under daily lighting, also known as neon lights. Fashion design trends are a good example. From 1990 to 1999, fluorescent colors were popular on the street. Especially those designers who like costumes redefine fluorescent colors with bold and avant-garde colors. This color swept all the runways and brought new life to fluorescent colors. Nowadays, although fluorescent colors cannot be found in every corner of the city, it still has certain trends.

It has been found that in the application of color fastness to sunlight, the color fastness of fabrics with conventional colors is slightly higher than that of fabrics with fluorescent colors. For people in the clothing industry, it is necessary to thoroughly grasp the important standards of the color fastness of fluorescent fabrics and some precautions to avoid economic losses caused by business errors caused by color fastness.

Choice of dye

The choice of dye has a very important influence on the color fastness of clothing. If the dye is not properly selected, even if the best dyeing auxiliaries and the best dyeing process are used, products with high color fastness cannot be produced. Therefore, only after choosing the right fuel can proceed to the next step.

Choosing different fuels leads to different color fastnesses. The types of dyes are broken down as follows:

1. Acid Dyes

Acid fuel is soluble in water and is widely used in protein, nylon fiber and silk. It has bright color, but poor color fastness after washing, and better color fastness after dry cleaning, so it is mostly used for natural dyeing.

2. Basic dyes

It also has bright colors and is mainly used for man-made fibers such as acrylic, polyester, nylon and cellulose and protein fibers, but the color fastness is poor in some natural textiles made of cellulose and protein.

3. Direct dye

This kind of dye can be directly dyed in various cellulosic textiles without relying on other chemicals. Because of its different use environment, its color fastness is also different, by changing its characteristics can greatly improve the color fastness to washing.

4. Disperse dyes

This dye is characterized by insoluble in water and fine particle size. Used in viscose, acrylic, nylon, polyester, etc. , Mainly dyed polyester fabrics. Bright color, good washing resistance and wide application.

5. Azo dyes

It is a synthetic fuel used in the printing and dyeing of various synthetic fibers. It is also the most widely used fuel in garment processing. Due to its gorgeous color and bright color, it is mainly used for cellulose fabrics.

6. Reactive dyes

Reactive dyes are a new type of water-soluble fuel, because some of its active molecules easily react with some active molecules in cellulose and protein fibers to form covalent bonds, namely "dye-fiber" compounds. Therefore, this fuel is mainly used for cellulose fiber fabrics, rather than protein materials. It has the advantages of bright color, water resistance, good light fastness, abrasion resistance and so on.

7. Vat dyes

This is a kind of dye that is reduced and colored under specific conditions such as alkaline, and then redoxed into the original insoluble dye. It is mainly used for cellulose fibers; it also has the characteristics of good color fastness to light and washing.

Therefore, it is necessary to correctly match the combination of dye and fiber according to the characteristics of the fiber itself, the grade, type and color depth of the dye, and the dye uptake rate to reduce the impact of the finished product in use.