Dyeing of Pineapple Leaf Fibers Using Various Natural Dye Extracts and Mordants

ABSTRACT

Pineapple leaf fiber is an environment-friendly natural fiber that does not harm any natural substance. To produce commercially available and attractive textile materials, pineapple leaf fibers were bleached with hydrogen peroxide and colored with natural dyes. Four natural dyes (turmeric powder, ebony fruit, lac, and sappan wood) were selected as natural sources for the extraction of natural colorants with and without salt, alum, and lime as mordants. The hydrogen peroxide concentration of 10 %owf, liquor ratio of 1:100, contact time of 30 min, and bleaching temperature of 70 °C were found to be the optimum bleaching parameters. The uses of different types of mordant on natural dyes give a variety of shades. The positive value of color axes (a* and b*) was an affirmation of mixture of red and yellow colors of mordanted-dyed PALF. PALF displayed a satisfactory dyeing performance for ebony fruit extracted dye with adequate fastness properties (from good to excellent) for light, wash, and perspiration, whether unmordanted or mordanted. Meta-mordanting increased the colorfastness properties of the samples. Results show excellent coloring ability for pineapple fiber dyeing, which can be a potential substitute for synthetic fiber as a sustainable approach to clean production. 

摘要

菠萝叶纤维是一种环保的天然纤维，对任何天然物质都没有危害. 为了生产商业上可买到的有吸引力的纺织材料，菠萝叶纤维用过氧化氢漂白，并用天然染料染色. 对漂白纤维进行了白度指数和拉伸性能等分析研究. 选择四种天然染料（姜黄粉、乌木、紫胶和蓝宝石）作为天然来源，提取天然着色剂，并添加和不添加盐、明矾和石灰作为媒染剂. 根据CIELAB（L*、a*和b*）、K/S值和色牢度特性研究了每种染色菠萝叶纤维的颜色. 过氧化氢浓度为10%owf，溶液比例为1:100，接触时间为30 min，漂白温度为70°C是最佳的漂白参数. 在天然染料上使用不同类型的媒染剂会产生各种色调. 色轴（a*和b*）的正值是对媒染PALF的红黄混合色的肯定. PALF对乌木果实提取染料表现出令人满意的染色性能，具有足够的耐光、耐洗和耐汗牢度（从好到好），无论是未经染色还是经媒染. 后媒染提高了样品的色牢度. 结果表明，菠萝纤维染色具有良好的着色能力，可作为合成纤维的一种可持续的清洁生产方法.

KEYWORDS:

• Pineapple leaf fiber
• dyeing
• turmeric
• ebony
• lac
• sappan

关键词:

• 菠萝叶纤维
• 染色
• 姜黄
• 乌木制的
• 紫胶
• 萨潘

Highlights

• Pineapple leaf fibers were bleached with hydrogen peroxide and colored with natural dyes i.e. turmeric, ebony fruit, lac, and sappan wood.

• Eco-friendly and easily found metal salts i.e. salt, alum, and lime were used as metallic mordant.

• Meta- mordanting increased the color strength and colorfastness properties of the PALF.

Acknowledgments

The authors would like to thank Srinakharinwirot University for providing financial support.

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

This work was supported by the Strategic Wisdom and Research Institute, Srinakharinwirot University [038/2666].