FZ/T 54049-2012 in English

本标准规定了海岛涤纶低弹丝的术语和定义、产品标识、技术要求、试验方法、检验规则、标志、包装、运输和贮存的要求。
本标准适用于以碱溶性聚酯切片（PET）为海相生产的，总线密度55.6 dtex～333.3 dtex、开纤后单丝线密度0.03 dtex ≤dpf ≤0.38 dtex，圆形截面、半消光、全消光的海岛涤纶低弹丝和海岛涤纶低弹丝与高收缩涤纶牵伸丝的混纤丝。其他类型的海岛涤纶低弹丝可参照使用。

Scope

This standard specifies the terms and definitions of island polyester low elastic yarn, product identification, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage requirements. This standard is applicable to products produced with alkali-soluble polyethylene terephthalate as the sea phase and polyethylene terephthalate as the island phase. The total linear density is 55.6 dtex ~ 333.3 dtex, and the single-filament linear density after fiber opening is 0.03 dtex～0.38 dtex, circular cross-section, semi-matt, fully matted island polyester low elastic yarn and mixed fiber yarn of island polyester low elastic yarn and high shrinkage polyester draft yarn. Other types of island polyester low elastic yarn can be used as a reference.