• 专利标题:   Colored polylactic acid tow comprises crystalline polylactic acid, nucleating agent, non-crystalline polylactic acid, color fixing material, and dye.
  • 专利号:   CN112195534-A, CN112195534-B
  • 发明人:   LU J, WANG C
  • 专利权人:   SHENZHEN HUAYUAN NEW MATERIALS CO LTD, SHENZHEN YONGFENG FRAGRANCE CO LTD
  • 国际专利分类:   D01D005/34, D01F001/06, D01F001/10, D01F008/14
  • 专利详细信息:   CN112195534-A 08 Jan 2021 D01F-008/14 202118 Pages: 11 Chinese
  • 申请详细信息:   CN112195534-A CN10945701 10 Sep 2020
  • 优先权号:   CN10945701

▎ 摘  要

NOVELTY - Colored polylactic acid tow comprises material A, material B and an appropriate amount of dye. The material A is calculated according to the total mass percentage of the tow, and includes: 45-89 wt.% crystalline polylactic acid, and 0.02-0.2 wt.% nucleating agent. The material B includes 7-45 wt.% non-crystalline polylactic acid, and 3.8-9.98 wt.% color fixing material. USE - Colored polylactic acid tow. ADVANTAGE - The colored polylactic acid tow has good heat resistance and excellent coloring performance and color retention. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing colored polylactic acid tow, which involves: (A) taking materials according to ratio of raw materials to prepare polylactic acid nascent tow; (B) coloring the nascent tow in a water bath to get a colored polylactic acid tow; and (C) taking water-bath drawing and coloring of the nascent tow as aqueous solution.