Preparation method of colored short fibers of polylactic acid

Polylactic acid has excellent biodegradability, biocompatibility, and high strength, making it a widely used polymer. Polylactic acid colored short fibers have rich color choices and good mechanical properties, and are widely used in the textile and medical fields. A method for preparing colored short fibers of polylactic acid was introduced.

 Preparation method

Solution preparation

Add polylactic acid (PLA) particles to organic solvents (such as chloroform, tetrahydrofuran, etc.) to prepare a 1% to 5% polylactic acid solution.

additive

Add corresponding organic dyes, additives, and surfactants to the polylactic acid solution as needed.

Control process

Adjust the chemical factors such as molecular weight of polylactic acid, solution concentration, type and dosage of additives to regulate the color and mechanical properties of polylactic acid colored short fibers.
spinning

The PLA solution is injected into the spinner, and the spinning parameters (such as nozzle diameter, spinning speed, electric field strength, etc.) are adjusted to make the solution form colored short fibers.

Application prospects

The above-mentioned preparation method can be used to prepare polylactic acid colored short fibers with excellent color and mechanical properties. This colored short fiber can be widely used in the textile industry, such as making clothing, curtains, home accessories, etc. In the medical field, this colored short fiber can also be used to make medical dressings, artificial blood vessels, and dissolving sutures. It can be seen that the preparation method of polylactic acid colored short fibers has important practical value and market prospects.

Conclusion

The preparation method of polylactic acid colored short fibers is a simple and practical technique that can produce colored short fibers with excellent properties. This technology has broad application prospects in the textile and medical fields.

Dongguan Liansheng Non woven Technology Co., Ltd. was established in May 2020. It is a large-scale non-woven fabric production enterprise integrating research and development, production, and sales. It can produce various colors of PP spunbond non-woven fabrics with a width of less than 3.2 meters from 9 grams to 300 grams.