Reasons for color fastness abnormality in fluorescent fabrics

Fluorescent fabrics have long been loved in people's trend collocation, and their eye-catching colors have become unconsciously occupied a certain position under the display of some trend-setters' bandwagon, which has an unignorable role to play.For example, Kanye West, a famous rapper and fashionista, and Deng Ziqi, a creative pop singer who has made a big splash in China, are also big fans of fluorescent-colored fabric clothing.In recent years, the varieties of fluorescent-colored fabrics have continued to push the boundaries of solid colors, from high-profile fluorescent green to a single fluorescent purple.
 Another name for fluorescence is called "glow light", which refers to a cold luminescence phenomenon caused by light.In layman's terms, it is when a room temperature material by another wavelength of ultraviolet light or X-ray irradiation, light absorption immediately triggered to the state of excitation, at the same time than the irradiation of light wavelengths longer than the visible wavelengths of the outgoing light, and the majority of fluorescent objects as long as the incident light stops coming in, and its own luminescence of light-emitting ability to disappear right away; where there is a phenomenon of this kind of luminescence caused by the light wascalled fluorescence.
 The common explanation is that people see brighter colors in everyday light, such as green, yellow, orange, purple, also known as neon light.Clothing design trend is a good example, fluorescent this color light in the 1990-1999 era popular streets, especially those who like vintage clothing designers rely on the bold and avant-garde use of color redefine the fluorescent color, so that all over the runway runway were swept, and re-gave new life to the fluorescent color, and now fluorescent color can not be spread all over the city in every corner, but still has a certain popularity trend.
 It has been found that in the application of color fastness to sunlight found that the color fastness of fabrics of conventional colors is slightly higher than that of fluorescent-colored fabrics.For clothing industry personnel, need to more thoroughly grasp the color fastness of fluorescent fabrics and some important standards of color fastness and some matters needing attention, to avoid the color fastness and the occurrence of business mistakes lead to economic losses.
 Selection of dyes
 The selection of dyes has a very important influence on the color fastness of clothing.If the dyestuff is not properly selected, even if the best dyeing auxiliaries and optimal dyeing process are applied, it will not be possible to make products with high-performance color fastness.Therefore, the next step can only be taken if the right fuel is selected.
 Different fuels are selected, resulting in different color fastness, and the types of dyestuffs are subdivided as follows:
 1. Acid dyes
 Acidic fuel is more soluble in water and is widely used in protein and nylon fibers as well as silk.It is specific that it has bright color, but the color fastness after washing is poor, dry cleaning color fastness effect is better, so it is mostly applied to natural dyeing.
 2. Alkaline dyes
 It is also characterized by bright colors, mostly used in acrylic, polyester, nylon and cellulose and other man-made fibers and protein fibers, but the color fastness in some natural cellulose and protein textiles is very poor.
 3.Direct dyes
 This kind of dyestuff does not need to rely on other agents, can be directly dyed in all kinds of cellulose textiles, its color fastness due to its different use of the environment is not the same, and after the change of his characteristics can be his washing color fastness has been greatly improved.
 4. Disperse dyes
 The characteristic of this dye is that it is not easy to dissolve in water and the particle size is very fine.Mostly used in viscose, acrylic, nylon, polyester, etc., mainly dyeing polyester fabrics.Bright color, excellent fastness to washing, widely used.
 5. Azo dyes
 It is a kind of synthetic fuel used for printing and dyeing of many kinds of synthetic fibers.It is also a kind of fuel which is most widely used in the processing of apparel crafts, because of its brilliant color and bright luster is mostly used in cellulose fabrics.
 6. Reactive dyes
 Reactive dyes new water-soluble fuel, because some of the active molecules in cellulose and protein fibers and some of the active molecules in the chemical reaction, the generation of covalent bonds that is the "dyes - fiber" compounds.So the fuel is mostly used in cellulose fiber fabrics, not in protein materials.It has the advantages of bright color, good color fastness to water and light, and friction resistance.
 7. Reduction dyes
 It is a kind of dye that is reduced and colored under specific conditions such as alkaline, and then oxidized and restored to the original kind of insoluble dyes and dyed, mostly used in cellulose fibers; it also has the characteristics of good color fastness to light and water washing.
 Therefore, according to the characteristics of the fiber itself, as well as the color fastness grade, type and color depth of the dyes and the dyeing rate of the dyes and other factors, to correctly match the combination between the dyes and the fibers to reduce the impact of the finished product in the process of use.