Cationic polyester yarn - full name: cationic dyed polyester is called cationic dyeable polyester, which belongs to modified polyester and can be dyed with cationic dyes at 110 degrees.

Cationic yarn belongs to modified polyester, chemical name: polybutylene terephthalate (elastic polyester), abbreviation: PBT, and it is also represented by CD in the factory. Because ordinary polyester (polyethylene terephthalate) has the disadvantages of low moisture absorption, poor dyeing performance, easy accumulation of static electricity, and easy fluff, so it is usually modified with sulfonate as a modifier to be dyed with cationic dyes. This kind of yarn is called cationic yarn. This kind of yarn does not need to be dyed at high temperature like ordinary polyester, and can be dyed at room temperature.

Cationic modified polyester filament is a new type of polyester product spun by introducing dimethyl isophthalate with polar group SO 3Na into polyester chips. Its appearance is no different from ordinary polyester filament. However, due to the use of ion modification, not only the color absorption performance of the fiber is greatly improved, but also the crystallinity is reduced, which makes the dye molecules easy to penetrate, making the fiber easy to dye, the color absorption rate is increased, and the hygroscopicity is also improved; this fiber not only guarantees Cationic is easy to dye, and at the same time, it can increase the micropores of the fiber, improve the dyeing rate, air permeability and hygroscopicity of the fiber, so as to further adapt to the simulated silking of polyester fibers; the simulated silking can make the fabric soft, breathable, comfortable and antistatic , Normal temperature and normal pressure can be dyed; through cationic modification of multi-functional wool-like, the fabric can be soft, anti-static, anti-pilling, normal temperature and pressure and wool co-dyeing. When dyed with cationic dyes, the fabrics made of cationic modified fibers have the following characteristics: 1. Bright hue and good deep dyeing; 2. High exhaustion rate (high dyeing rate); 3. Sunlight resistance Good fastness and smoke fading fastness; 4. Good compatibility of dyestuffs when dyeing by color combination; 5. Good stability in high temperature dyeing bath; 6. Contamination of other fibers including ordinary polyester fibers 7. The diffusion rate into the fiber is fast, and there is no ring dyeing phenomenon; 8. When the pH value in the dye bath changes, the dyestability is high. The fabrics are comparable to natural fabrics in terms of wearing comfort and bright dyeing, and are lower in price than natural silk, which can generate high added value.

Cationic modified polyester filament is indistinguishable from polyester filament. If you want to distinguish it, you can only use dyeing method! Cationic raw materials are generally dark!