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In the domestic textile market in the past two years, the demand for moisture-absorbing and sweat-reducing textiles has gradually increased, which has attracted the attention of people in the industry. The use of moisture wicking fibers, there are pure spinning, but also with cotton, wool, silk, hemp and other chemical fiber and synthetic fiber blended or intertwined; can be woven, but also knitting, has a good development prospects.

Moisture absorbing and wicking fabric performance The moisture absorbing and wicking fabric has deep dyeing performance. Since the moisture wicking polyester surface has irregular grooves and narrow grooves, the incident light can be diffused by the fiber several times to reduce the reflected light, resulting in deep dyeing. Sex is greatly increased to increase the vividness and deep dyeing of the dyeing.

Moisture wicking fabrics also have low pilling and pilling properties. When Coolplus II is treated with NaOH 5-7g/L and treated at 100 °C- 120 °C for 30 minutes, it loses part of its weight (alkaline weight loss) as the polyester is treated with alkali. The strength is also reduced, its anti-pilling pilling performance up to 3 levels. Based on the above reasons, the organizational specifications of Coolplus II should be designed to be tighter and tighter to prevent the fabric from becoming too loose after scouring.

Dyeing and finishing a number of issues Moisture absorption perspiration fabrics (pure and blended) Dyeing and finishing technology, basically refer to conventional polyester and polyester-cotton blended fabrics process and technical conditions. However, the special structure of moisture-wicking polyester must be guaranteed not to be damaged, otherwise it will affect the performance of the product.

The main concerns are :

1. Moisture absorbing and wicking Polyester is mainly shaped fiber, and most surfaces have fine groove structure. The surface area of ​​the same denier is 20-50% larger than that of the conventional round fiber. Therefore, the alkali treatment at high temperature in the pretreatment should be carefully considered.

2. Based on the same reasons as above, the dyeing of disperse dyes is faster, so the cotton fabrics must be dyed with the same color, and the prescription for the original dyed cotton (or dyed polyester) must be properly adjusted.

3. When the moisture wicking fabric is soft-treated, it is not suitable to use hydrophobic species, otherwise it will affect the wicking effect of the fabric, resulting in lower moisture wicking function. After the purely spun and blended fabrics are finished by the moisture wicking agent, Moisture absorption and perspiration are excellent, and it is better to use a durable variety.

4. The newly introduced moisture wicking agent is mainly a water-dispersible polyester-based compound. The origin of this auxiliant development can be traced back to the first time in the 60s and 70s of the last century by the British ICl company. To the market Permalose, where Permalose-T is used for polyester fabrics, Permalose-TG is used for polyester-cotton blended fabrics.

The water-dispersible polyester is a block copolymer of terephthalic acid (ethylene glycol) and polyethylene oxide. The apparent molecular weight of the block copolymer, the melting point is about 50-60°C, and it is easily dispersed in water and dispersed. Body, when the concentration is high, it is gelatinous. The molecular structure of the water-dispersed block copolymer has a benzene ring with the same molecular structure as that of the polyester, and the molecular chain segment is anchored to the surface of the polyester at a high temperature, so that the polyester from the original hydrophobic surface becomes a durable aqueous surface.

The application method of water-dispersible intercalated copolymers includes roll roasting process and high-temperature impregnation process. The former needs heat treatment at 160°C-170°C for 3-5 min, the latter heat treatment at 130°C for 30 min, and the amount of application on the fabric (with effective activity). The ingredient count is about 1-1.5%, and the treatment effect is better with high temperature impregnation process and the effect is stable. After moisture wicking and finishing, in addition to significantly improve the function of moisture absorption and perspiration, there are still antistatic and easy decontamination effects.

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