The colorful polyester staple fibers currently on the market can be divided into dope-colored colorful polyester fibers and dyed colorful polyester staple fibers according to different coloring processes. Dyeing polyester fiber adopts traditional dyeing and finishing process. Because polyester has a tight molecular structure, strong hydrophobicity, and does not contain -SO3-, -COO- and other hydrophilic groups in the molecule, it is difficult to dye with hydrophilic dyes at room temperature. It needs to be dyed under high temperature and high pressure, the chromatogram is subject to certain restrictions, and the dyeing energy consumption is high, the cost is high, the dyeing discharge volume is large, and the economic and social benefits are limited.
Polyester fabrics with real silk appearance style woven from polyester filaments or short fiber yarns with round and profiled cross-sections have the advantages of low price, anti-wrinkle and non-ironing, and are very popular with consumers. Common types are: polyester silk, polyester crepe, polyester satin, polyester georgette, polyester interlaced silk, etc. These kinds of silk fabrics have the chic drape, smoothness, softness, and pleasing to the eye. Together, they also have the stiffness, wear resistance, easy washing and non-ironing of polyester fabrics. The disadvantage is that these fabrics have poor moisture absorption and breathability and are not too cool to wear. In order to overcome this defect, more new polyester fabrics are now available, such as high moisture absorption polyester fabrics.
It is made of polyester filaments such as polyester stretched yarns, polyester network yarns or various profiled cross-section polyester yarns, or mixed with medium and long polyester staple fibers and medium and long viscose or medium and long acrylic fibers. Woolen style fabrics are called worsted wool-like fabrics and medium-length wool-like fabrics, and their prices are lower than similar wool fabric products.
It not only has the characteristics of full and bulky felt and good elasticity of woolen cloth, but also has the characteristics of polyester is durable, easy to wash and dry, flat and crisp, not easy to deform, not easy to fluff, and pilling. Common types are: polyester elastic serge, polyester elastic gabardine, polyester elastic tweed, polyester web spun woolen fabric, polyester viscose mid-length tweed, polyester nitrile hidden tweed, etc.
The use of polyester fiber's original solution coloring technology is relatively lagging and less planned. Relatively speaking, colored fiber spinning and colored silk yarn weaving skills are traditional basic textile skills. With the maturity of digital textile skills, they are widely used and continuously developed in traditional silk, woolen and cotton yarn-dyed fields. Improving day by day.
Now, the coloring technology of polyester staple fiber is mainly used for the yarn-dyed weaving of tarpaulin, umbrella cloth, advertising banner and flag cloth, lining cloth, school uniform and uniform fabrics, etc., which have not changed product specifications and relatively large transaction orders. category.
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