Novel Methods of Degumming and Bleaching of Indian Flax Variety Tiara

ABSTRACT

Tiara is the only fiber variety flax recently been introduced in India. The water retted flax fibers were mechanically extracted and subjected to degum and bleach using various chemicals and enzymes and the treatment conditions were optimized. The tenacity and elongation of the fiber were found to be improved when ethylene diamine tetra acetate (EDTA) was used to degum the fiber before peroxide bleaching. The effect of hydrogen peroxide in flax bleaching was studied at different mediums. Oxalic acid and EDTA assisted peroxide bleaching shows 23% and 50% increase in tenacity and whiteness as compared to raw fiber. The characterization of fiber done through FTIR, SEM, and analysis of chemical composition, shows the removal of pectin and hemicellulose from the fiber as a result of chemical treatments.

摘要

头饰是印度最近引进的唯一纤维品种亚麻. 采用机械萃取法，对亚麻纤维进行脱胶、漂白，并对脱胶处理条件进行了优化. 采用乙二胺四乙酸酯（EDTA）在过氧化物漂白前对纤维进行脱胶，可提高纤维的韧性和伸长率. 研究了不同介质中过氧化氢对亚麻漂白的影响. 草酸和EDTA辅助过氧化物漂白与原纤维相比，韧性和白度增加了23%和50%. 通过FTIR、SEM和化学成分分析对纤维进行了表征，结果表明，经过化学处理后，纤维中的果胶和半纤维素被去除.

KEYWORDS:

• Flax
• Tiara
• degumming
• pretreatment
• fiber extraction
• fiber processing

关键词:

• Flax亚麻
• Tiara冠状头饰
• degumming脱胶
• pretreatment预处理
• fiber extraction纤维提取
• fibre processing纤维加工