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<p>To date, plant dyes have gained increased attention due to their unique nature of environmental degradation and biocompatibility. Nevertheless, existing fabrics dyed with plant dyes usually suffer from poor dye uptake and color fastness. In this study, we designed and fabricated a novel high-performance gardenia yellow dyed fabric by grafting a cationic modifier, 3-chloro-2-hydroxypropyltrimethylammonium chloride (CHPTAC), onto the surface of cotton fabric. Compared to traditional dyed fabrics, the dyed fabrics modified with CHPTAC exhibit superior color depth due to strong electrostatic attraction. The fabric is also endowed with splendid light fastness and ultraviolet resistance. The light fastness could be significantly improved from grades 2–3 to grades 4–5. The ultraviolet protection factor of the fabric could be enhanced from 36.37 to 216.0. In addition, the fabrics exhibit outstanding rubbing fastness and soap fastness, with dry and wet rubbing fastness achieving a grade of 5 and soap fastness reaching a grade of 4–5. We think the study may open the door to new possibility in broadening the commercial application of plant dye.</p>

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Study on the Dyeing Method of Cationic Modified Cotton Fabrics Dyed with Gardenia Yellow

  • 期刊论文

  • 发表日期：

    2025年5月12日

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  • Xueying Cui,
  • Peibo Du,
  • Yuan Chang,
  • Zaisheng Cai

摘要

To date, plant dyes have gained increased attention due to their unique nature of environmental degradation and biocompatibility. Nevertheless, existing fabrics dyed with plant dyes usually suffer from poor dye uptake and color fastness. In this study, we designed and fabricated a novel high-performance gardenia yellow dyed fabric by grafting a cationic modifier, 3-chloro-2-hydroxypropyltrimethylammonium chloride (CHPTAC), onto the surface of cotton fabric. Compared to traditional dyed fabrics, the dyed fabrics modified with CHPTAC exhibit superior color depth due to strong electrostatic attraction. The fabric is also endowed with splendid light fastness and ultraviolet resistance. The light fastness could be significantly improved from grades 2–3 to grades 4–5. The ultraviolet protection factor of the fabric could be enhanced from 36.37 to 216.0. In addition, the fabrics exhibit outstanding rubbing fastness and soap fastness, with dry and wet rubbing fastness achieving a grade of 5 and soap fastness reaching a grade of 4–5. We think the study may open the door to new possibility in broadening the commercial application of plant dye.