As an expert in the field of textile chemistry and dyeing and finishing,

In the future, the special disperse dyes of this kind of fiber will be more prominent in the aspect of functionality, and the market prospect will also be wider. The uniqueness of polyester microfiber will increase the difficulty of dyeing.

Polyester microfiber is divided into three types: island type, orange petal and shotcrete.

The most notable feature of polyester microfiber is that its filament size is much lower than that of ordinary fibers.

The garments made of polyester microfiber are comfortable, beautiful, warm and breathable, have good drape and fullness, and have obvious advantages in hydrophobic and antifouling properties.

Polyester microfiber will encounter many technical problems in printing and dyeing process. Taking PET superfine fiber like suede as an example, the first one is poor dyeing depth. Because the surface area of island microfiber is much larger than that of conventional polyester fiber, the reflection surface of fiber surface is very large, and the depth of dyeing and dyeing is related to the reflected light of fiber surface and the refraction light from the fiber back to the outside. Therefore, when the dye dosage is the same, the island type microfiber has a much lower color depth than the conventional polyester fiber.

The two is the poor color fastness. This is also due to the fact that the surface area of the superfine fiber is much larger than that of the conventional polyester fiber. When the dye dosage is the same, the dye volume per unit area is much lower. If the same depth of appearance is to be achieved, the dye should also increase in the same proportion, resulting in the doubling of the disperse dye dosage and the decrease of the color fastness.

Three, the levelling property is poor. The dyeing rate of disperse dyes is related to the radius and surface area of the fibers. Because of the small linear density, the large surface area and the fast adsorption rate of dyestuffs, microfiber is easy to cause uneven dyeing.

These factors put forward higher requirements for the technical level of dyestuff producers and dyeing and printing enterprises of polyester microfiber fabrics.

Polyester Microfiber

Performance continues to improve.

Most of the dyestuff producers such as Sheng, run, Ya bang, Ji Hua and other above dyestuff producers are mainly dyed with disperse dyes. They are mainly concentrated in the supply of peach skin. Their market share and location are relatively stable and clear. They have been maintained at the level of 30%~40%. The domestic professional dyestuff manufacturers represented by anoits company, with their unique advantages in the new textile fiber and fabric market, such as microfiber and so on, have developed a series of disperse dyestuff products, such as high lift, high washing fastness and high sunlight fastness, which are used for superfine fiber, replacing the market of foreign products, filling the gap in the domestic market and expanding the market share year by year. At present, the market of special disperse dyestuffs for polyester microfiber in China is mainly purchased from some foreign high-end fabric purchasers or designated dye brand buyers, but its market share is decreasing year by year.

The special dyestuff for polyester microfiber has a bright market prospect.

According to the forecast of the people concerned, the production of microfiber will increase at an annual rate of 9%. By 2013, the annual output of domestic polyester microfiber will reach 460 thousand tons, of which the output of ultra-fine fiber for suede, imitation peach skin, imitation silk and other high-end clothing and home textile fabrics will reach about 250 thousand tons.

It is believed that with the improvement of industry concentration and the requirement of more functional dyeing for microfiber characteristics, the market scale of disperse dyes for polyester microfiber will also gradually expand in China.

According to statistics in the industry, 1 tons.

According to the different requirements of dyeing properties, 20 kilograms of ~80 kg disperse dyes are commonly required. Among them, island type microfiber fabrics and high level fabrics with high washing and high sunlight fastness consume more dyes.

It is estimated that with the continuous development of domestic polyester fabrics in the direction of differentiation and functionalization, the demand for disperse dyes for polyester microfiber will increase at an annual rate of 15%, and domestic demand will reach 15000 tons by 2013.