随着“用即弃”市场的不断发展，聚烯烃类纤维难以掩埋降解的问题日益突出。生物可降解聚酯15年前率先由欧洲和美国实现了产业化，其中比较著名的是聚乳酸（PLA，以Nature Works公司为代表）和聚己二酸/对苯二甲酸丁二酯（PBAT，以BASF公司为代表），其主要应用领域为薄膜、注塑和纤维。用以替代传统“用即弃”领域很难填埋分解且焚烧后会产生有害气体的聚乙烯、聚氯乙烯、聚丙烯和部分聚苯乙烯，由于初期原料成本高，且可降解聚酯纤维的物理化学性能不及PET纤维，产业化进程相对缓慢。

With the continuous development of the "use and abandon" market, the problem of polyalkene fibers being difficult to bury and degrade is becoming more and more prominent. Biodegradable polyester 15 years ago pioneered by Europe and the United States to achieve industrialization, one of the most famous is polylactic acid (PLA, Nature of Works company as the representative) and adipic acid / poly terephthalic acid Ding Erzhi (PBAT, represented by BASF company), the main application fields for thin film, injection molding and fiber. To replace the traditional "disposable" field is difficult to landfill decomposition and burning will produce harmful gases, PVC, polyethylene and polypropylene polystyrene part, because of the high cost of raw materials, and the physical and chemical properties of polyester fiber degradation than PET fiber, the industrialization process is relatively slow.

大规模使用生物可降解聚酯（PLA、PBAT、PBST、PBS）纺丝并形成非织造布的技术关键点主要包括 3 个方面：一是进一步降低生产成本；二是采用熔喷、纺粘非织造布技术使纤维细旦化，进一步减少由于密度大于聚烯烃而导致的效益损失（同样线密度下可降解聚酯的断裂强度是聚烯烃的150%以上）；三是探索生物可降解聚酯纤维的表面处理技术，包括亲水和拒水处理，以全面取代不可生物降解的聚烯烃类纤维。

The large-scale use of biodegradable polyesters (PLA, PBAT, PBST, PBS) and the formation of the key technical points of spinning nonwovens mainly includes 3 aspects: one is to further reduce the production cost; two is the use of meltblown spunbond nonwoven technology, the fiber denier, further reducing the loss of benefit from density is greater than the resulting polyolefin (the same the line density can fracture strength degradation of polyester polyolefin is more than 150%); the three is to explore the surface treatment technology of biodegradable polyester fiber, including hydrophilic and water repellent treatment, to fully replace not biodegradable polyolefin fiber.