Poly(lactic acid) (PLA) fiber was developed more than a decade ago. It has been regarded as the most promising sustainable and biodegradable fiber to replace conventional polyethylene terephthalate (PET) polyester fiber in textile products. This paper reviews recent developments in PLA polymerization, PLA filament and fiber spinning, staple yarn spinning, fabric production, dyeing and finishing and aftercare procedures. The properties of PLA fiber are broadly similar to those of PET fiber; however, the properties of PLA fiber that differ, including thermal degradation and low hydrolytic resistance to strong alkaline, significantly affect the method selection and parameter setting of production and processing of PLA fibers and fabrics. PLA filaments are mainly produced by two-step melt spinning to get fibers with stable quality, but degradation at high temperature is still a problem. PLA staple yarns are normally spun using ring spinning. Currently existing knitting or weaving techniques can be used to produce PLA fabrics. PLA fabrics can be dyed with disperse dyes at 110°C, but their color fastness and shades are different from PET fabrics when using the same dyes. The scouring and dyeing of PLA/cotton blended fabrics and the reductive clearing after dyeing remain to be improved. As a new fiber, the entry of PLA fiber into the textile market faces difficult challenges as well as great opportunities in the future.

聚乳酸（PLA）纤维是十多年前开发的。它被认为是最有前途的可持续性和生物降解性纤维，可替代纺织产品中的常规聚对苯二甲酸乙二酯（PET）聚酯纤维。本文回顾了PLA聚合，PLA长丝和纤维纺丝，短纤维纺丝，织物生产，染色和后整理以及后续保养程序方面的最新进展。PLA纤维的特性与PET纤维大致相似；但是，PLA纤维的不同特性（包括热降解和对强碱的低水解性）会显着影响PLA纤维和织物生产和加工的方法选择和参数设置。PLA长丝主要通过两步熔融纺丝生产，以获得质量稳定的纤维，但是高温下降解仍然是一个问题。通常使用环锭纺纺PLA短纤。当前现有的编织或编织技术可以用于生产PLA织物。PLA织物可以在110°C的温度下用分散染料染色，但是当使用相同的染料时，其色牢度和色泽与PET织物不同。PLA /棉混纺织物的精练和染色以及染色后的还原清澈度仍有待提高。作为一种新型纤维，PLA纤维进入纺织市场面临着艰巨的挑战，同时也蕴藏着巨大的机遇。但是当使用相同的染料时，它们的色牢度和色泽与PET织物不同。PLA /棉混纺织物的精练和染色以及染色后的还原性清除仍有待改进。作为一种新型纤维，PLA纤维进入纺织市场面临着艰巨的挑战，同时也蕴藏着巨大的机遇。但是当使用相同的染料时，它们的色牢度和色泽与PET织物不同。PLA /棉混纺织物的精练和染色以及染色后的还原清澈度仍有待提高。作为一种新型纤维，PLA纤维进入纺织市场面临着艰巨的挑战，同时也蕴藏着巨大的机遇。